Leak-detection instruments, located throughout the annulus, are monitored to detect any liquid on the floor of the annulus space.
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And although we have no evidence that AY-102's outer shell has been breached, the annulus was never built to hold nuclear waste.
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This is a type of eclipse where the moon is too distant to completely cover the sun and instead appears as a brilliant annulus or "ring of fire," punched into the daytime sky.
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Following confirmation of the filter sample readings, workers completed a video inspection of the AY-101 annulus and the results showed no visual change from previously conducted inspections and no indication of a leak.
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In October 22022, Mike Geffre, a former Hanford facility worker who maintained the instruments used to monitor the waste, discovered that radioactive material had leaked into the region between the tank's inner and outer shell (called the annulus).
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According to KING-5 News, when workers lowered a camera into the tank's annulus, they discovered that the leak had expanded substantially, resulting in the accumulation of more than eight inches of radioactive waste between the inner and outer shell.
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Update 4/27: A DOE spokesperson has sent Gizmodo the following statement:During routine filter inspections, higher than normal readings for contamination were found on filter paper installed on a continuous air monitor for Hanford's double-shell tank AY-101 annulus.
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Tracer ammunition was marked with a red annulus; armouring-piercing ammunition a green annulus, and incendiary ammunition was marked with a blue annulus. Lastly, explosive ammunition was marked with an orange annulus before the Second World War and was changed to black.
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Mitral annulus The mitral annulus is a fibrous ring that is attached to the mitral valve leaflets. Unlike prosthetic valves, it is not continuous. The mitral annulus is saddle shaped and changes in shape throughout the cardiac cycle. The annulus contracts and reduces its surface area during systole to help provide complete closure of the leaflets.
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Annulus The annulus of an oil well or water well is any void between any piping, tubing or casing and the piping, tubing, or casing immediately surrounding it.Schlumberger Oilfield Glossary: Term 'annulus', retrieved 18 February 2010. It is named after the corresponding geometric concept. The presence of an annulus gives the ability to circulate fluid in the well, provided that excess drill cuttings have not accumulated in the annulus, preventing fluid movement and possibly sticking the pipe in the borehole.
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In mathematics, the annulus theorem (formerly called the annulus conjecture) states roughly that the region between two well-behaved spheres is an annulus. It is closely related to the stable homeomorphism conjecture (now proved) which states that every orientation-preserving homeomorphism of Euclidean space is stable.
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Maximum Allowable Annulus Surface Pressure is an absolute upper limit for the pressure in the annulus of an oil and gas well as measured at the wellhead.
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The forewings are white with black lines, a small medial annulus across the cell, a large annulus around the discocellular. The hindwings are white with a black point on the discocellular.
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In a completed well, there may be many annuli. The 'A' annulus is the void between the production tubing and the smallest casing string. The 'A' annulus can serve a number of crucial tasks, including gas lift and well kills. A normal well will also have a 'B' and frequently a 'C' annulus, between the different casing strings.
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The annulus fibrosus is made of lamelliform connective tissue bands.
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The veil is well-developed but does not form a permanent annulus.
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An annulus Illustration of Mamikon's visual calculus method showing that the areas of two annuli with the same chord length are the same regardless of inner and outer radii. In mathematics, an annulus (the Latin word for "little ring" is anulus / annulus, with plural anuli / annuli) is a ring-shaped object, a region bounded by two concentric circles; equivalently, it is the set difference between two concentric disks. The adjectival form is annular (as in annular eclipse). The open annulus is topologically equivalent to both the open cylinder and the punctured plane.
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Sporangium of the moss Funaria hygrometrica with well-defined annulus. In mosses, an annulus is a complete ring of cells around the tip of the sporangium, which dissolve to allow the cap to fall off and the spores to be released.
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Preserving well integrity is a vital task for the operators. This includes ensuring that the annuli remain intact. One major threat to annulus integrity is overpressure within the annulus, which could lead to burst or collapse of a casing or damage to the formation below. This will happen first at the shoe of the annulus because the pressure will naturally be higher with the weight of the column of brine.
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In mice (and potentially in humans, too), defective annulus formation leads to male infertility.
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Once at the surface, the gas is collected through piping connected to the annulus.
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The intervertebral disc mainly consists of the nucleus pulpous, annulus fibrous, and cartilage endplate.
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A large maple leaf in center charged with a beaver, encircled by an annulus, inscribed THE LAKE SUPERIOR SCOTTISH REGIMENT and surmounted by the Crown; below a scroll inscribed INTER PERICULA INTREPIDI; on each side of the annulus with six maple leaves.
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If S and T are topological spheres in Euclidean space, with S contained in T, then it is not true in general that the region between them is an annulus, because of the existence of wild spheres in dimension at least 3. So the annulus theorem has to be stated to exclude these examples, by adding some condition to ensure that S and T are well behaved. There are several ways to do this. The annulus theorem states that if any homeomorphism h of Rn to itself maps the unit ball B into its interior, then B − h(interior(B)) is homeomorphic to the annulus Sn−1×[0,1].
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As gas velocity in the annulus depends on a calculated velocity of the solids ejected from bubbles, it is more difficult for the solids coming from the annulus with increasing velocity in the nozzle to penetrate into the central gas jet under a constant fluidization velocity. Increasing the central velocity at a height of 25 mm above the nozzle decreases the time-averaged solids concentration. However, an increase in this velocity has no effect on the solids concentration above the annulus. On the other hand, for a low central gas velocity, the solids velocities over the annulus and above the nozzle show nearly the same value with sharp velocity gradient.
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A speck, spot or small annulus in cell and larger discocellular spot or annulus. A highly dentate, postmedial, more or less prominent line oblique from costa to vein 4, where it is sharply angled, then inwardly oblique. A marginal black specks series present. Hindwings pale brownish.
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This is similar to reverse circulation, except the kill fluid is pumped into the production tubing and circulated out through the annulus. Though effective, it is not as desirable since it is preferred that the well bore fluids be displaced out to production, rather than the annulus.
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The tympanum is concealed beneath skin, but the tympanic annulus is visible below skin. The supratympanic fold is faint but concealing the tympanic annulus dorsally. The fingers and toes are partially webbed and bear large discs (smaller on the toes than on the fingers). Skin is smooth.
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The cusps of the aortic valve are excised, and calcium is removed (debrided) from the aortic annulus. The surgeon measures the size of the aortic annulus and fits a mechanical or tissue valve of the appropriate size. Usually the valve is fixed in place with sutures, although some sutureless valves are available. If the patient's aortic root is very small, the sutures are placed outside of the aortic root instead of at the annulus, to gain some extra space.
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The geometry of the annulus enables the transfer of heat to the moving shale through a wall.
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The disc is made up of an annulus fibrosis with a nucleolus pulpous found within the fibrosis.
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A brown annulus on the discocellulars is present. Hindwings are semi-diaphanous white with apex suffused with yellow.
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The intervertebral disc consisted of annulus ground substance, nucleus pulpous, and collagen fibers embedded in the ground substance.
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Diamond milling can be used to generate aspheric lens arrays by annulus cutting methods with a spherical diamond tool.
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This refers to the integrity of the casing strings, which bound the annuli. All annuli will naturally be filled to some level with brine or other fluids from the completion, though the 'A' annulus may have gas down to the lowest gas lift valve if the well is gas lifted. The major integrity issues comes from the differential pressure across the casings due to the weight of brine on either side. To protect well integrity, each annulus will have a Maximum Allowable Annulus Surface Pressure.
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Expansion of the annulus can result in leaflets that do not join soundly together, leading to functional mitral regurgitation. The normal diameter of the mitral annulus is , and the circumference is . Microscopically, there is no evidence of an annular structure anteriorly, where the mitral valve leaflet is contiguous with the posterior aortic root.
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In zoology, an annulus is an external circular ring. Annuli are commonly found in segmented animals such as earthworms and leeches. The bodies of these annelids are externally marked by annuli that are arranged in series with each other. An annulus may also be an indication of growth in certain species, similar to dendrochronology.
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Any kind of interval, open, closed, semi-open, semi-closed, open-bounded, compact, even rays, can be the fiber. Two simple examples of I-bundles are the annulus and the Möbius band, the only two possible I-bundles over the circle S^1. The annulus is a trivial or untwisted bundle because it corresponds to the Cartesian product S^1\times I, and the Möbius band is a non-trivial or twisted bundle. Both bundles are 2-manifolds, but the annulus is an orientable manifold while the Möbius band is a non-orientable manifold.
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This dehiscence causes the cells to shrink and a contraction and straightening of the annulus ring, eventually rupturing the sporangial wall by ripping apart thin-walled lip cells on the opposite side of the sporangium. As more water evaporates, air bubbles form in the cells causing the contracted annulus to snap forward again, thus dislodging and launching the spores away from the plant. The type and position of the annulus is variable (e.g. patch, apical, oblique, or vertical) and can be used to distinguish major groups of leptosporangiate ferns.
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Atmospheric pressure can be omitted since it works the same on both columns. If the fluid in both the pipe and annulus are of the same density, hydrostatic pressures would be equal, and the fluid would be static on both sides of the tube. If the fluid in the annulus is heavier, it will exert more pressure downward and will flow into the string, pushing some of the lighter fluid out of the string, causing a flow at the surface. The fluid level then falls in the annulus, equalizing pressures.
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Ischnocodia annulus, common name golden target beetle or ringed tortoise beetle, is a species of turtle beetle in the family Chrysomelidae.
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The term intervertebral disc annuloplasty indicates any procedure aimed at repairing the annulus of a bulging intervertebral disc before it herniates.
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Section of pinnule and synangium. a, Vascular bundle; c, hairs; b, d, annulus, magnified. E - Oligocarpia. Sorus in surface-view, magnified.
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The annulus is white; its upper surface bears fine, radial striations; and its lower surface, verrucose to conical warts. The annulus is often broken during expansion of the cap. The spores measure 8.0 - 10.0 (0.8 – 1 mm) × 6.0 - 7.5 (0.6 - 0.75 mm) µm and are broadly ellipsoid to ellipsoid and amyloid. Clamps are common at bases of basidia.
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Originally described from the Spence Shale of Utah, Utahscolex has 4 transverse rings of plates per annulus, arranged as two ‘bands’ of double rows of plates separated by a central naked zone. Occasionally, single row bifurcates into to two rows (for up to 6 rows per annulus). The plates are circular, and unornamented. Platelets and microplates are absent.
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Some recent studiesKheradvar, A., Milano, M., Gharib, M. Correlation between vortex ring formation and mitral annulus dynamics during ventricular rapid filling, ASAIO Journal, Jan–Feb 2007 53(1): 8–16.Kheradvar, A., Gharib, M. Influence of ventricular pressure-drop on mitral annulus dynamics through the process of vortex ring formation, Ann Biomed Eng. 2007 Dec;35(12):2050–64.
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The holotype, an adult female, measures , whereas the paratype male—of unknown maturity status—measures in snout–vent length. The snout is long and acuminate. In the female, tympanic annulus is present but the tympanic membrane is poorly differentiated; in the male, no tympanic annulus is present. The parotoid glands are ovoid but depressed and not very conspicuous.
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The liquid is placed within the annulus of one cylinder inside another. One of the cylinders is rotated at a set speed. This determines the shear rate inside the annulus. The liquid tends to drag the other cylinder round, and the force it exerts on that cylinders (torque) is measured, which can be converted to a shear stress.
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If the rate at which the pumps are running is held constant, then the flow from the annulus should be constant. If the annulus flow increases without a corresponding change in pumping rate, the additional flow is caused by formation fluid(s) feeding into the well bore or gas expansion. This will indicate an impending kick.
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Specifically, the nucleus becomes fibrous and stiff and less able to bear load. Excess load is transferred to the annulus, which may then develop fissures as a result. If the fissures reach the periphery of the annulus, the nuclear material can pass through as a disc herniation. Mutations in several genes have been implicated in intervertebral disc degeneration.
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It is often helpful to visualize the well as a U-shaped tube. Column Y of the tube represents the annulus, and column X represents the pipe (string) in the well. The bottom of the U-tube represents the bottom of the well. In most cases, fluids create hydrostatic pressure in both the pipe and annulus.
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Retrieved June 11, 2017. The wingspan is 28–38 mm. The forewings are dark purplish red with a small annulus in the base of the cell, a larger one at the middle and a discocellular annulus with black margins and purple- red centres. The outer margin is red with some dark suffusion inside it at the costa.
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More complicated figures such as an annulus can be created when the intersecting plane is perpendicular or oblique to the rotational symmetry axis.
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While the DHSV isolates the production tubing, a loss of integrity could allow wellbore fluid to bypass the valve and escape to surface through the annulus. For wells using gas lift, it may be a requirement to install a safety valve in the 'A' annulus of the well to ensure that the surface is protected from a loss of annulus containment. However, these valves are not as common and they are not necessarily installed at the same position in the well, meaning it is possible that fluids could snake their way around the valves to surface.
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The lateral rectus originates at the lateral part of the annulus of Zinn, also known as the annular tendon or common tendinous ring, and inserts into the temporal side of the eyeball. The annulus of Zinn is a tendinous ring that surrounds the optic nerve and serves as the origin for five of the six extraocular muscles, excluding the inferior oblique muscle.
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Two of the largest problems found in cement by CBT's are channeling and micro-annulus. A micro annulus is the formation of microscopic cracks in the cement sheath. Channeling is where large, contiguous voids in the cement sheath form, typically caused by poor centralization of the casing. Both of these situations can, if necessary, be fixed by remedial electric line work.
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It is found in New Guinea. The wingspan is about 34 mm. The forewings are pale purplish red irrorated (sprinkled) with blackish and with a minute annulus incompletely defined by black scales in the middle of the cell and a more complete discoidal annulus. There are traces of a diffused dark postmedial line, oblique to vein 5, then inwardly oblique and somewhat dentate.
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Black spots are located on the central annulus (a2) of each segment. Ventral region is mainly black, with metameric pairs of light greenish markings.
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Mercer S, Bogduk N. The Ligaments and Annulus Fibrosus of Human Adult Cervical Intervertebral Discs. Spine 1999 Apr 1; 24(7): 619-26. 12\.
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The blue gears are called planet gears and the pink gear is the ring gear or annulus. Ring gears are also used in starter motors.
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The veil does not form an annulus. The taste of this species has been described as slightly bitter, and the smell slightly farinaceous, like grain.
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The eyes are moderately small. The tympanic annulus is indistinct. All but the first finger have distinctly expanded discs. All toes have expanded terminal discs.
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This allows measurement of the leaflet thickness and their displacement relative to the annulus. Thickening of the mitral leaflets >5 mm and leaflet displacement >2 mm indicates classic mitral valve prolapse. Prolapsed mitral valves are classified into several subtypes, based on leaflet thickness, type of connection to the mitral annulus, and concavity. Subtypes can be described as classic, nonclassic, symmetric, asymmetric, flail, or non- flail.
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Sprinkler branch pipe through-penetration with plastic sleeve - missing firestop in concrete fire separation. The branch pipe is a penetrant, as is the plastic sleeve, which is a code violation if left in place, unless allowed by the certification listing with a firestop that permits such sleeving to be left in place. The space between the sleeve and the pipe is the annulus or annular space The annulus, or annular space, is the space between a penetrant and whatever surrounds it, such as the sides of an opening or a sleeve, as the case may be. Sometimes an annulus can be "offset", meaning that the penetrant is not centred.
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Holoaden grow to snout–vent length at most. Head is narrower than the body. Differentiated tympanic membrane and tympanic annulus are absent. Dorsum is highly glandular.
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For the Latero model, the lateral approach was adapted to remove the lateral and a half inner layer of the annulus and the entire nucleus pulpous.
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In the downcomer or annulus region, it combines with the feedwater flow and the cycle repeats. The saturated steam that rises above the separator is dried by a chevron dryer structure. The "wet" steam goes through a tortuous path where the water droplets are slowed and directed out into the downcomer or annulus region. The "dry" steam then exits the RPV through four main steam lines and goes to the turbine.
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The valve is excised 4–5 mm from the annulus, leaving intact the attached chordae unless they are calcified or otherwise diseased. The valve is replaced by a mechanical or bioprosthetic valve. The replacement valve is sewn into the annulus with interrupted or horizontal mattress sutures with the pledgets on the atrial side. The atrial walls are closed, taking care not to trap air within the chambers of the heart.
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In order to impress the Annulus, El Graduado attempts to make a large drug trafficking deal. After being foiled at every turn by El Gato Negro, he resolved to kill the vigilante or risk embarrassment. In a final confrontation with El Gato, the villain had the upper-hand until the arrival of the Texas Rangers. El Graduado was arrested, leaving his father to answer to the wrath of the Annulus.
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There is a small annulus in the cell with a line from it to the inner margin. There is also a discocellular reniform spot filled with fulvous and a strong black postmedial line, the area beyond it suffused with brown. The hindwings are paler, with a discocellular annulus and an ill- defined postmedial line, the area beyond it suffused with brown. Both wings have a dark marginal line.Proc. Zool. Soc. Lond.
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Sporangium of Polypodium vulgare with annulus on the right. In leptosporangiate ferns, the annulus located on the outer rim of the sporangium and serves in spore dispersal. It consists typically of a ring or belt of dead water-filled cells with differentially thickened cell walls that stretches about two-thirds around each sporangium in leptosporangiate ferns. The thinner walls on the outside allow water to evaporate quickly under dry conditions.
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Other similar Pulveroboletus species in the area include P. annulus and P. croceus, which may be differentiated from P. bembae by a combination of macro- and microscopic characteristics.
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A series of ball detents act on the annulus to lock it, allowing power to be transmitted from the planet carrier to the sun gear. When the torque transmitted through the gearset reaches a determinate amount, the torque acting on the annulus causes it to unlock from its ball detents and freely rotate, causing power to be diverted from the load on the sun gear to the annulus and thereby stalling the output until torque is reduced to an amount where the ball detents can lock the annulus again. This system equally limits torque in both directions of rotation and also works with the sun gear as the input. The compression of the ball detents (and therefore the amount of torque at which the limiter is utilized) is typically adjusted by means of a rotating collar accessible to the user which is indexed and held in place with its own separate ball detents.
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Although the fruit bodies of P. bembae are roughly similar to those in Xerocomus, species in this genus do not have the powdery veil characteristic of P. bembae. Two similar species in the same area include P. annulus and P. croceus, described in 1951 by Belgian mycologist Paul Heinemann, based on specimens collected in the Congo. Although the identity of these two species is not fully clarified because of insufficient collections, P. bembae differs from both in its larger cystidia, its cream-colored flesh with pale reddish- brown to light brown tones under the cap cuticle (compared to white in P. annulus and P. croceus), its yellow mycelium (white in P. annulus and P. croceus), and differences in ecology.
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The Latin word anulus means "little ring"; it is the diminutive of anus ("ring"). The misspelling annulus is also common. Federative Committee on Anatomical Terminology (FCAT) (1998). Terminologia Anatomica.
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A core-annulus flow structure in both the riser and the bend and a solid accumulation in the horizontal section of the bend are identified from quantitative ECVT images.
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Processes that lead to aortic insufficiency usually involve dilation of the valve annulus, thus displacing the valve leaflets, which are anchored in the annulus. Mitral stenosis is caused largely by rheumatic heart disease, though is rarely the result of calcification. In some cases vegetations form on the mitral leaflets as a result of endocarditis, an inflammation of the heart tissue. Mitral stenosis is uncommon and not as age-dependent as other types of valvular disease.
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As the instability grows, the center of mass of the fluid is lowered. In growing waves in the atmosphere, cold air moving downwards and equatorwards displaces the warmer air moving polewards and upwards. Baroclinic instability can be investigated in the laboratory using a rotating, fluid filled annulus. The annulus is heated at the outer wall and cooled at the inner wall, and the resulting fluid flows give rise to baroclinically unstable waves.
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Adult males measure and adult females, based on two specimens only, in snout–urostyle length. The snout is short. The eyes are prominent. The tympanum and tympanic annulus are present.
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The specific epithet bitorquis is Latin "having two collars", and refers to the two rings resulting from detachment of the annulus from both the top and bottom of the stipe.
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This rapid event triggers spore dispersal due to the elastic energy released by the annulus structure. The initial spore acceleration is extremely large – up to 10 times the gravitational acceleration.
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Tissue doppler can be used to determine motion of myocardial tissue. This can be used to measure motion of the septal and lateral mitral annulus to suggest diastolic heart failure.
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When coiled tubing is run inside of conventional tubing it is often referred to as a "velocity string" and the space between the outside of the coiled tubing and the inside of the conventional tubing is referred to as the "micro annulus". In some cases gas is produced up into the micro annulus. Coiled tubing umbilicals can convey hydraulic submersible pumps, electric submersible pumps and jet pumps into wells for both permanent deliquification schemes and service applications.
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The annulus tissue comprises interwoven cylindrical hyphae measuring 3–9 μm wide. Sphaerocysts (inflated, spherical cells) are also present in the annulus tissue; they are club shaped to ellipsoidal, with dimensions of 29–55 by 30–70 μm. The warts on the cap surface (remnants of the universal veil) comprise loosely interwoven cylindrical to inflated thin-walled hyphae that are 3.5–8 μm wide. Sphaerocysts in this tissue are 58.5–70.2 by 17.5–40 μm, ellipsoidal, and hyaline.
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In water-flooding developments in which water is injected into the reservoir, packers are used in injection wells to isolate the zones into which the water must be injected. There are occasions in which running a packer may not be desirable. For example, high volume wells that are produced both up the tubing and annulus will not include a packer. Rod pumped wells are not normally run with packers because the associated gas is produced up the annulus.
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Classical prolapse may be subdivided into symmetric and asymmetric, referring to the point at which leaflet tips join the mitral annulus. In symmetric coaptation, leaflet tips meet at a common point on the annulus. Asymmetric coaptation is marked by one leaflet displaced toward the atrium with respect to the other. Patients with asymmetric prolapse are susceptible to severe deterioration of the mitral valve, with the possible rupture of the chordae tendineae and the development of a flail leaflet.
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The annulus theorem is trivial in dimensions 0 and 1. It was proved in dimension 2 by , in dimension 3 by , in dimension 4 by , and in dimensions at least 5 by .
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The scales of some species exhibit bands of uneven seasonal growth called annuli (singular annulus). These bands can be used to age the fish. Leptoid scales come in two forms: cycloid and ctenoid.
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Mold-on centralizers are able to be applied directly to the casing surface. Its blade length, angle and spacing can be designed to fit specific well applications, especially for the close tolerance annulus.
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While the general goal of all devices is the same, namely to increase leaflet coaptation and to support the posterior annulus against dilation, flexible bands are designed to maintain the three-dimensional contour of the native annulus and some of its natural dynamics. The goal of semi-rigid rings is to maintain coaptation and valve integrity during systole, while allowing for good hemodynamics during diastole. Rigid rings are designed to provide rigid support in large dilation and under high-pressure.
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There are four different ways an annulus may be overpressured: burst of the outside casing, collapse of the inside casing, fracturing of the formation at the shoe, overpressure of the surface equipment. Each of these produces its own limiting pressure at the shoe. The MAASP is taken as the most limiting of these. The following example is for the 'B' annulus of a gas lifted well, filled with 1.2 sg brine from the shoe at 4070ftTVD (true vertical depth) to surface.
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The type series consists of three adult females, a male, and a juvenile. The male measures and the females in snout–vent length. The snout is long and rounded. The tympanum has prominent annulus.
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An annulus in botany is an arc or a ring of specialized cells on the sporangium. These cells are arranged in a single row, and are associated with the release or dispersal of spores.
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The sliding sleeve is hydraulically or mechanically actuated to allow communication between the tubing and the 'A' annulus. They are often used in multiple reservoir wells to regulate flow to and from the zones.
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Adult males measure and adult females in snout–vent length. The snout is acuminate. The tympanic membrane, annulus, and stapes are absent. The fingers have lateral fringes but no webbing whereas the toes are webbed.
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Adult males measure and adult females in snout–vent length. The snout is subacuminate. The tympanum is small, recessed, and smooth, whereas the tympanic annulus is granular. The forelimbs are slender; fingers are without webbing.
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Adult males measure and adult females, based on two specimens only, in snout–vent length. The body is slender. The snout is rounded. The tympanum is distinct with prominent annulus; the supratympanic fold is evident.
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Cleanup of contaminated groundwater tends to be very costly. Effective remediation of groundwater is generally very difficult. Contamination of groundwater from surface and subsurface sources can usually be dramatically reduced by correctly centering the casing during construction and filling the casing annulus with an appropriate sealing material. The sealing material (grout) should be placed from immediately above the production zone back to surface, because, in the absence of a correctly constructed casing seal, contaminated fluid can travel into the well through the casing annulus.
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When two D-branes approach each other the interaction is captured by the one loop annulus amplitude of strings between the two branes. The scenario of two parallel branes approaching each other at a constant velocity can be mapped to the problem of two stationary branes that are rotated relative to each other by some angle. The annulus amplitude yields singularities that correspond to the on-shell production of open strings stretched between the two branes. This is true irrespective of the charge of the D-branes.
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The mitral annulus changes in shape and size during the cardiac cycle. It is smaller at the end of atrial systole due to the contraction of the left atrium around it, like a sphincter. This reduction in annulus size at the end of atrial systole may be important for the proper coapting of the leaflets of the mitral valve when the left ventricle contracts and pumps blood. Leaking valves can be corrected by mitral valve annuloplasty, a common surgical procedure that aims at restoring proper leaflet adjustment.
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The partial veil is layered. The surface underneath can be cottony or fibrillose. Sometimes, it fragments, leaving scattered cottony patches over a membranous-tomentose basement layer. The annulus is superior, thin, and initially erect, then pendulous.
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Its annulus is white and membranous, and A. verna react yellow with 20% potassium hydroxide solution, unlike its relative Amanita phalloides var. alba while Amanita virosa gets an orangeyellow reaction. The mushroom's spores are smooth and elliptical.
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The holotype, an adult female, measures in total length. The body is highly attenuated; the body width is . The eyes are not visible. The primary annulus count is high (232), whereas the secondary annuli are completely absent.
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The female holotype measures in snout–vent length (SVL). Two adult males measure SVL. The snout is short and rounded. The tympanic membrane is absent but the tympanic annulus is visible beneath skin, partly covered by supratympanic.
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Euparkerella are small frogs, growing to snout–vent length at most. The digits are extremely reduced, compared to those of their larger relatives. Head is narrower than the body. Differentiated tympanic membrane and tympanic annulus are absent.
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Phyllogomphus annulus is a species of dragonfly in the family Gomphidae. It is found in Angola, the Democratic Republic of the Congo, and Uganda. Its natural habitats are subtropical or tropical moist lowland forests and intermittent rivers.
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The wings are buffy brown, the forewings with a fuscous antemedial line, slightly outangled on the median and followed in the cell by a small fuscous annulus and a larger annulus over the discocellular. The postmedial line is fuscous, distally edged with white except where retracted along vein 2. It is dentate from the costa, inangled at the fold and retracted at vein 2 to near the cel, finally curved and slightly outbent below vein 2 to the inner margin. There are terminal black spots on the interspaces.
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The system was essentially a bolt-on extension to the existing design and had almost no effect on the operation of the original engine. Each turbine blade was an integral part of a "blucket", the outboard section of which was a fan rotor blade. Running freely on a stub shaft, a series of buckets, mounted on a disc, made up the aft rotor assembly. The efflux from the turbojet expanded through the (inner) turbine annulus, thus providing power directly to the fan blades located in the outer annulus.
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Oppenheimer et al. (2008) observed an annulus feature in AB Aurigae's dust disk between 43 and 302 AU from the star, a region never seen before. An azimuthal gap in an annulus of dust at a radius of 102 AU would suggest the formation of at least one small body at an orbital distance of nearly 100 AU. Such object could turn out either a massive planetary companion or more likely a brown dwarf companion, in both cases located at nearly 100 AU from the bright star. So far the object is unconfirmed.
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Being the son of the successful businessman and drug lord Ignacio Ochoa, El Graduado planned to take his father's place amongst a criminal organization known as The Annulus, which makes a yearly summit in South America. In order to impress the Annulus, El Graduado was to make a large drug-trafficking deal in Texas. After being consistently thwarted by the hero, El Graduado kidnapped his former girlfriend Narcilina Montoya and Francisco's grandfather. Holding both of them at Guerrero’s Produce, El Graduado offered Agustin him the position as a silent partner in his drug trade.
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Most of the accretion of Mars must have taken place outside the narrow annulus of material formed by the grand tack if Mars has a different composition than Earth and Venus. The planets that grow in the annulus created by the grand tack end with similar compositions. If the grand tack occurred early, while the embryo that became Mars was relatively small, a Mars with a differing composition could form if it was instead scattered outward then inward like the asteroids. The chance of this occurring is roughly 2%.
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The stem is 3 to 9 cm long, 1.5 mm thick, and is equal width for the whole length, sometimes with some swelling at the base. It lacks an annulus (ring), is hollow and pruinose near the top.
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The subspecific name, annulatus, comes from the Latin noun annulus, meaning "ring", and refers to the banded subcaudal surface. This banding is one of the key characteristics to differentiate this subspecies from the nominotypical subspecies, Sceloporus merriami merriami.
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Adult males measure in SVL; adult females are unknown but a subadult female measured in SVL. The snout is moderately long. The tympanic annulus is distinct. The fingers and toes bear discs but neither webbing nor lateral fringes.
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Male Ctenophryne carpish measure (based on a single specimen) and females in snout–vent length. The body is stout and the head is short. The eyes are large. The tympanum is absent, as is tympanic annulus and stapes.
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Agrocybe arvalis is a species of Agaricales with a brown, hygrophanous cap and brown spore print. It does not have an annulus. Spores are elliptical and smooth, ranging from . Pleurocystidia can have 3–5 apical, finger-like projections.
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SKB Technical Report TR-06-30. Stockholm, Sweden. Similar uses include making slurry walls, waterproofing of below- grade walls, and forming other impermeable barriers, e.g., to seal off the annulus of a water well, to plug old wells.
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Dischidodactylus are smallish frogs that reach a maximum snout–vent length of in females. Their head is not as wide as body. Tympanic membrane is not differentiated and tympanic annulus is visible below skin. Cranial crests are absent.
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Another method is to twist along an annulus spanning two components. Gordon proved that for the class of links where these two constructions are not possible there are finitely many links in this class with a given complement.
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These have a transverse-oblique annulus and contain 128 to 800 bilateral or globose-tetrahedral spores. The sori and sporangia mature at the same time, and the spores grow into surface- dwelling green prothalli beset with club-shaped hairs.
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Echocardiography may reveal an enlarged, hypokinetic right ventricle with a paper-thin RV free wall. The dilatation of the RV will cause dilatation of the tricuspid valve annulus, with subsequent tricuspid regurgitation. Paradoxical septal motion may also be present.
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Bryophryne are smallish frogs, reaching maximum snout–vent length of in Bryophryne cophites. Head is narrower than the body. Differentiated tympanic membrane, tympanic annulus, columella, and cavum tympanicum are absent. Dorsum is finely areolate whereas venter is coarsly areolate.
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Suillus pseudobrevipes is a species of edible mushroom in the genus Suillus. It was first described scientifically by American mycologists Harry D. Thiers and Alexander H. Smith in 1964. This fungal species have a distinctive fibrillous annulus. Compare with Suillus brevipes.
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The tympanic annulus is incomplete, obscured by skin in its upper parts. There is no supra-tympanic fold and the canthus rostralis is indistinct. The limbs are relatively short. The fingers are short and have swollen, subdigital pads but no discs.
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Adult males measure and adult females in snout–vent length. The snout is rounded. The tympanum is visible with a distinct annulus. All toes and all but the innermost finger bear small discs; no lateral keels nor webbing are present.
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Adult males measure and adult females in snout–vent length. The snout is short. Tympanic membrane is absent and tympanic annulus is usually absent. Fingers and toes have narrow lateral keels but no webbing; the digital discs are small but distinct.
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Stage Collars provide a means for cement slurry to be displaced higher in the annulus immediately following the primary cement job. A series of differently sized rubber plugs pumped down inside the casing open and then later close the sliding valves.
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The tympanum is not externally visible, with tympanic annulus being hidden under skin and covered with muscle. A distinct supratympanic fold is nevertheless present. The limbs are short. The fingers have narrow fringes and wide, truncated and flattened tips (discs).
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The vascular system consists of a clepsydroid primary xylem with a cross section and a secondary xylem. The sporangia are in groups and have no annulus. All representatives must have been homosporous. The exact taxonomic position of Rhacophytales is still unclear.
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Total identified the origin of the gas leak to be an unexploited chalk reservoir layer of the Hod formation located at a depth of , above the main reservoir, which was supported by analysis showing the absence of significant concentration of hydrogen sulfide in the gas. The Hod formation had been isolated by steel casing during drilling in 1997. On 25 February 2012 an increase in pressure was observed in the C annulus within the well and remedial operations started on 4 March 2012. Total believe that the C annulus failed and gas was observed leaking from the conductor.
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The galactic habitable zone is often viewed as an annulus 7-9 kpc from the galactic center, shown in green here, though recent research has called this into question. Early research on the galactic habitable zone, including the 2001 paper by Gonzalez, Brownlee, and Ward, did not demarcate any specific boundaries, merely stating that the zone was an annulus encompassing a region of the galaxy that was both enriched with metals and spared from excessive radiation, and that habitability would be more likely in the galaxy's thin disk. However, later research conducted in 2004 by Lineweaver and colleagues did create boundaries for this annulus, in the case of the Milky Way ranging from 7 kpc to 9 kpc from the galactic center. The Lineweaver team also analyzed the evolution of the galactic habitable zone with respect to time, finding, for example, that stars close to the galactic bulge had to form within a time window of about two billion years in order to have habitable planets.
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Caltech, II. MORPHOLOGY, #34 For the Milky Way, the galactic habitable zone is commonly believed to be an annulus with an outer radius of about 10 kiloparsecs and an inner radius close to the Galactic Center, both of which lack hard boundaries.
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Sphaerocoris annulus can reach a length of about . The basic color is green, with eleven ring-shaped spots on the elytra. The colors and the design of these bugs represent a warning to predators. They also emit a noxious odour when disturbed.
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The best fit disk model suggest a broad dust annulus with a peak brightness at a radius of 53.7 AU, that is inclined by an angle of 56° to the line of sight from the Earth along a position angle of 111.2°.
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The snout is acuminate in dorsal view and markedly oblique in lateral view. The tympanum is visible, rounded, and has a visible tympanic annulus. The limbs are slender. The fingers and toes are slender and have reduced webbing and rounded adhesive discs.
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The partial veil is white, membranous, and has small brown floccose scales concentrated near the margin. The annulus is thin and pendulous on the stipe.Arora, p. 314 The spores are 6.5–8.0 μm by 4.5–5.0 μm, smooth, thick-walled, and ellipsoid.
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Afterwards Bell Laboratories (code: BEL) made batches of 7.62×39mm ammo in the 1970s and 1980s for training soldiers in the familiarization and use of Communist Bloc weapons. They can be identified by the light-blue sealant used on the primer annulus.
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2000 Jan;75(1):24-9. relation between mitral flow and mitral annulus velocity. Left: Normal person with good diastolic function; high E and e', normal E/e'. Middle, patient with diastolic dysfunction without increased filling pressure; low E and e', normal E/e' ratio.
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The eyes are small inconspicuous. The tympanic membrane is distinct although the tympanic annulus is not; no supratympanic fold is present. The fingers and toes bear very small terminal discs; those of the toes are slightly larger than the finger ones. No webbing is present.
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Psychrophrynella wettsteini is a comparatively large species (maximum snout–vent length ) and has a robust body and long limbs. The snout is rounded. The tympanic membrane is absent, whereas the tympanic annulus is visible through the skin. Tips of the digits are only slightly swollen.
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The mechanism of TR is either a dilatation of the base (annulus) of the valve due to right ventricular dilatation, which results in the three leaflets being too far apart to reach one another; or an abnormality of one or more of the three leaflets.
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The complex exponential function mapping biholomorphically a rectangle to a quarter-annulus. In the mathematical theory of functions of one or more complex variables, and also in complex algebraic geometry, a biholomorphism or biholomorphic function is a bijective holomorphic function whose inverse is also holomorphic.
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The forewings are ochreous, irrorated with dark brown and suffused with purplish fuscous except on the costal area and the inner margin. The apical area is ochreous, with a dark streak below vein 8 and the antemedial line is blackish, angled outwards below the costa and bent outwards to the inner margin. There is a black annulus in the middle of the cell and a narrow elliptical discoidal annulus defined by black. The postmedial line is blackish, slightly defined on the outer side by ochreous, obliquely downcurved to vein 6, excurved and slightly waved to vein 2, then bent inwards to below the end of the cell and again excurved.
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However natural daily stresses and minor injuries can cause these discs to gradually lose water as the annulus fibrosus, or the rigid outer shell of a disc, weakens. Because degenerative disc disease is largely due to natural daily stresses, the American Academy of Orthopaedic Manual Physical Therapists have suggested it is not truly a "disease" process. This water loss makes the discs less flexible and results in the gradual collapse and narrowing of the gap in the spinal column. As the space between vertebrae gets smaller, extra pressure can be placed on the discs causing tiny cracks or tears to appear in the annulus.
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The effect of this is to discourage drivers from taking a more direct path through the roundabout, their line of least resistance being more tightly curved (and therefore slower) but more bearable. The inner annulus provides for the trailing axles of longer or articulated vehicles to sweep across the inner annulus, which is therefore known as an over-run area (in UK usage), truck apron, or mountable apron. The smaller the roundabout, the more such mitigation measures are likely to be abused – the less effective they will be. In the UK the minimum size for roundabouts with raised islands is 28 metre diameter ICD with a 4-metre diameter island.
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A decrease in pump pressure or increase in pump speed can happen as a result of a decrease in hydrostatic pressure of the annulus as the formation fluids enters the wellbore. As the lighter formation fluid flows into the wellbore, the hydrostatic pressure exerted by the annular column of fluid decreases, and the drilling fluid in the drill pipe tends to U-tube into the annulus. When this occurs, the pump pressure will drop, and the pump speed will increase. The lower pump pressure and increase in pump speed symptoms can also be indicative of a hole in the drill string, commonly referred to as a washout.
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Eur J Echocardiogr. 2004 Aug;5(4):262-71Assessment of mitral annulus velocity by Doppler tissue imaging in the evaluation of left ventricular diastolic function. J Am Coll Cardiol. 1997 Aug;30(2):474-80 If there is impaired relaxation (Diastolic dysfunction), the e' velocity decreases.
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In oil or gas well drilling, lost circulation occurs when drilling fluid, known commonly as "mud", flows into one or more geological formations instead of returning up the annulus. Lost circulation can be a serious problem during the drilling of an oil well or gas well.
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Thermal denaturation of membrane proteins may destroy the secondary and tertiary structure of membrane proteins, exposing newer surfaces to membrane lipids and therefore increasing the number of lipids molecules in the annulus/shell layer. This phenomenon can be studied by the spin label electron paramagnetic resonance technique.
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The tympanic annulus is obscure; a weak postorbital- supratympanic fold is present. The legs are short. The finger tips are flattened and disc-like, but only the disc of the third finger is broader than the penultimate phalanx; discs have somewhat broader discs. No webbing is present.
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The holotype, of unknown sex, measures in snout–vent length (the specimen is somewhat dehydrated was not dissected to avoid damage). The snout is subacuminate in dorsal view and truncate in profile. The canthus rostralis is distinct and straight. The tympanum is distinct with an ossified annulus.
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Adult males measure and adult females in snout–vent length. The head is large and wide. The snout is rounded in profile but blunt and barely rounded in dorsal view. The tympanic annulus is indistinct; the weakly- developed supratympanic fold hides the upper part of the tympanum.
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Males measure and females in snout–vent length. Skin on the dorsum is finely shagreen, with some small warts forming linear ridges at mid dorsum. Skin on the venter is smooth. The tympanic membrane is not differentiated and the tympanic annulus is barely visible below skin.
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Alcalus rajae occurs in primary undisturbed and secondary forests near seepage areas close to small and slow-moving streams and swamps. Its altitudinal range is . Its morphology (fully webbed toes and absence of tympanic annulus) suggests that it is aquatic. It is probably an egg-laying species.
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In symplectic topology and dynamical systems, Poincaré–Birkhoff theorem (also known as Poincaré–Birkhoff fixed point theorem and Poincaré's last geometric theorem) states that every area-preserving, orientation-preserving homeomorphism of an annulus that rotates the two boundaries in opposite directions has at least two fixed points.
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Panaeolus semiovatus var. phalaenarum is a medium-sized mushroom which has a cap that is 2 to 4 cm, convex, and is white to yellowish. Often mistaken for its larger cousin Panaeolus semiovatus var. semiovatus, from which it differs in being more slender and having no annulus (ring).
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In parts of West Asia, Cypraea annulus, the ring cowry, so-called because of the bright orange- colored ring on the back or upper side of the shell, was commonly used. Many specimens were found by Sir Austen Henry Layard in his excavations at Nimrud in 1845–1851.
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The stipe is white, long and thick at the apex; when young the base of the stipe is bulbous but as it grows it thins and becomes almost the same width as at the top of the stem. A membranous annulus is present, placed low on the stipe.
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Latin Diagnosis of Glomerellales: > "" English translation: > Perithecia darkly pigmented, sometimes becoming ± sclerotial. Perithecial > wall 2–3-layered, ostiolum periphysate. Interascal tissue of thin-walled, > tapering paraphyses. Asci unitunicate, thin walled, ascal apex thickened > without visible discharge mechanism or thin-walled with a distinct apical > annulus, inamyloid, 8-spored.
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The arms of Salaberry within an annulus Vert fimbriated and inscribed VOLTIGEURS DE QUEBEC in letters Argent, all surmounting the cross of the Order of St. Louis Argent, the whole ensigned by the Royal Crown proper and above a scroll Argent inscribed with the Motto in letters Gules.
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Phrynopus are small to medium-sized frogs, from snout–vent length in Phrynopus auriculatus to in Phrynopus kauneorum. Head is narrower than the body. Differentiated tympanic membrane and tympanic annulus are usually absent, except in Phrynopus auriculatus and Phrynopus peruanus, two basal species. Dorsum is smooth to pustulate.
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The velocity curves are in general taken from the base of the mitral annulus at the insertion of the mitral leaflets, in the septal and lateral points of the four chamber view, and eventually the anterior and inferior points of the two-chamber views. For the right ventricle it is customary to use the lateral point of the tricuspid annulus only. Averaging peak velocities from the septal and lateral point has become common, although it has been shown that averaging all four points mentioned above, gives significantly less variabilityThorstensen A, Dalen H, Amundsen BH, Aase SA, Stoylen A. Reproducibility in echocardiographic assessment of the left ventricular global and regional function, the HUNT study. Eur J Echocardiogr.
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The goal of mitral valve annuloplasty is to regain mitral valve competence by restoring the physiological form and function of the normal mitral valve apparatus. Under normal conditions the mitral valve undergoes significant dynamic changes in shape and size throughout the cardiac cycle. These changes are primarily due to the dynamic motion of the surrounding mitral valve annulus, a collageneous structure which attaches the mitral leaflets and the left atrium to the ostium of the left ventricle and the aortic root. Throughout the cardiac cycle, the annulus undergoes a sphincter motion, narrowing down the orifice area during systole to facilitate coaptation of the two leaflets and widens during diastole to allow for easy diastolic filling of the left ventricle.
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This is often the tidiest way of making a planned well kill. It involves pumping kill fluid down the 'A' annulus of the well, through a point of communication between it and the production tubing just above the production packer and up the tubing, displacing the lighter well bore fluids, which are allowed to flow to production. The point of communication was traditionally a device called a sliding sleeve, or sliding side door, which is a hydraulically operated device, built into the production tubing. During normal operation, it would remain closed sealing off the tubing and the annulus, but for events such as this, it would be opened to allow the free flow of fluids between the two regions.
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The genus Saproamanita contains about 24 species of agarics and is one of six genera in the family Amanitaceae. The others are Amanita (which now includes the synonym Torrendia, a generic name previously applied to sequestrate species), Catatrama, Limacellopsis, Zhuliangomyces and Limacella. Saproamanita are the saprophytic species in the Tribe Amaniteae, separately classified from the ectomycorrhizal species in the genus Amanita. Saproamanita resemble Amanita and have a pileus, free lamellae, a central stipe, and an annulus with scales and rings below the annulus that are the remnants of the universal veil composed largely of cylindrical to slender clavate inflated hyphal cells mostly scattered in the central stipe region rather than the base.
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At this point a bilayer is formed in the center of the aperture, but a significant annulus of solvent remains at the perimeter. This annulus is required to maintain stability by acting as a bridge between the ~5 nm bilayer and the 10s of micrometer thick sheet in which the aperture is made. The term “black” bilayer refers to the fact that they are dark in reflected light because the thickness of the membrane is only a few nanometers, so light reflecting off the back face destructively interferes with light reflecting off the front face. Indeed, this was one of the first clues that this technique produced a membrane of molecular-scale thickness.
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LL.D. of the Universities of Edinburgh, Glasgow and McGill and hon. D.Sc. and senator of the University of Dublin. He was Secretary of the Royal Irish Academy and President of the Anatomical Society (1897-99). His name has been attached to the fovea gastrica and the annulus femoralis s. cruralis.
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Sporangia are circinate (ring-shaped) and bear multicellular stalks. They diverge from a basal, vascular receptacle. The sporangia contain 64 trilete spores which bear sculpturing on their outer covering (perispore) ranging from irregular granulate or echinate to prominent rodlets. The annulus is nearly vertical and arranged in a single series.
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While the three clades of Schizaeales are all well-distinguished from one another by numerous morphological characters, members of the order all have dimorphic fertile and sterile fronds and lack well-defined sori. Their sporangia have a horizontal annulus that lies below and completely encircles the top of the sporangium.
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Psychrophrynella are small frogs measuring between snout–vent length. They are characterized by narrow head, absence of differentiated tympanic membrane (except in Psychrophrynella boettgeri) and, in most species, absence of tympanic annulus. Dorsum is smooth, granular, or shagreen. Venter is finely granular, granular, or coarsely granular (but smooth in Psychrophrynella pinguis).
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This species is present in tropical and subtropical Africa (Benin, Cameroon, Côte d'Ivoire, Ethiopia, Ghana, Kenya, Malawi, Mozambique, Namibia, Nigeria, Sierra Leone, South Africa, Tanzania, Togo, Zambiavan der Heyden, T. (2017): A recent record of Sphaerocoris annulus (FABRICIUS, 1775) in Zambia (Hemiptera: Heteroptera: Scutelleridae). - Heteropteron, 49: 23-25. and Zimbabwe).
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At maturity, the stem is stuffed. The surface is white, and turns smooth at the apex, while it is finely scaled below. The partial veil is white, membranous, and two layered. The upper surface is striate, while the lower surface is composed of scaly patches, forming a small, superior annulus.
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Adult females can reach in snout–vent length. Males reach sexual maturity at about in snout–vent length. The tympanum is discernible, but the tympanic annulus tends to be covered by spinose warts. The parotoid glands are prominent and covered by dark-tipped spines, except in males in full breeding condition.
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Males measure and females in snout–vent length. There is a distinctive charcoal, dark brown, or black facial mask. Tympanumic annulus and membrane are clearly visible. Dorsum has well-defined scapular and sacral chevrons and pair of suprainguinal spots, although patterns differ among individuals and few specimens are nearly patternless.
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In retaliation, the Annulus enlists the aid of Boss Ochoa's nephews, two ruthless mercenaries from Corpus Christi, Texas. Nearly killing the costumed-crimefighter, El Gato Negro manages to escape from the two, only to collapse in the arms of his grandfather, Agustin Guerrero, suffering from extreme fatigue and near- intracranial injury.
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Transesophageal echocardiogram of mitral valve prolapse. echocardiographic techniques which can pinpoint abnormal leaflet thickening and other related pathology. Echocardiography is the most useful method of diagnosing a prolapsed mitral valve. Two- and three-dimensional echocardiography are particularly valuable as they allow visualization of the mitral leaflets relative to the mitral annulus.
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The pebble bed reactor (PBR) design consists of fuel in the form of pebbles, stacked together in a cylindrical pressure vessel, like a gum-ball machine. Both reactors may have the fuel stacked in an annulus region with a graphite center spire, depending on the design and desired reactor power.
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If no fluid is moving, the well is static. The bottom hole pressure (BHP) is equal to the hydrostatic pressure (HP) on the annular side. If shut in on a kick, bottom hole pressure is equal to the hydrostatic pressure in the annulus plus the casing (wellhead or surface pressure) pressure.
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Forewings of male with a slight ridge representing the fovea. A broad, ill-defined pale fascia found from base to outer margin below apex. The costal, inner and outer areas striated and black suffused. There is an indistinct annulus at end of cell and traces of a waved postmedial line.
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The wings are buff, irrorated with buffy brown. The forewings have a light buff antemedial line, outangled in the cell, outwardly shaded with fuscous from the subcostal to the inner margin. There is a fuscous annulus on the discocellular. The postmedial line is light buff, broadly shaded on both sides with fuscous.
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Thirdly, given circles that intersect can be resized so that they become non-intersecting, after which the method for inverting to an annulus can be applied. In all such cases, the solution of the original Apollonius problem is obtained from the solution of the transformed problem by undoing the resizing and inversion.
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2010 Mar;11(2):149-56. Epub 2009 Dec 3 The method measures annular velocities to and from the probe during the heart cycle. Single spectral tissue velocity curve from the mitral annulus. The curve shows velocities towards the probe (positive velocity) in systole, and away from the probe (negative velocities) in diastole.
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Other phenomena have similar symptoms to ringing, but are otherwise distinct in their causes. In cases where these cause circular artifacts around point sources, these may be referred to as "rings" due to the round shape (formally, an annulus), which is unrelated to the "ringing" (oscillatory decay) frequency phenomenon discussed on this page.
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Adult males measure and adult females in snout–vent length. The head is large. The tympanic annulus may be present, reduced, or absent; the right and left side of a single individual may show different state. The fingers have no webbing whereas the toes are webbed; the degree of webbing varies among individuals.
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The packer isolates the annulus between the tubing and the inner casing and the foot of the well. This is to stop reservoir fluids from flowing up the full length of the casing and damaging it. It is generally placed close to the foot of the tubing, shortly above the production zone.
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The forewings are dark brown with a slight olive tinge, the medial area is greyish except at the costa and there is some grey at the base of the inner margin. The antemedial line is black, slightly defined on the inner side by grey, excurved to the median nervure and incurved in the submedian interspace. There is a small black annulus in the middle of the cell and a larger discoidal annulus. The postmedial line is blackish defined on the outer side by grey, forming a rounded blackish patch below the costa, excurved and minutely dentate between veins 5 and 2, then bent inwards to below the end of the cell and forming a diffused spot in the submedian interspace.
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After leaving the blower, the gas is passed through the other halves of the coolers and is delivered to the various inlet regions of the stator core and rotor. Gas is fed to the turbine end of the rotor through axial holes machined in the hub of the blower rotor from an annulus formed between the end bracket and the blower outlet diffuser. Large diameter tubes passing longitudinally through the stator frame connect this annulus to the extreme end section at the slipring end, from which the slipring end of the rotor is fed. The three-stage axial blower mounted on the generator shaft comprises a shaft-mounted sleeve upon which is mounted the bladed rotor disc, a bladed stator casing, a diffuser and an inlet fairing.
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A top view and side view sketch of the motion of an Annular Fluidized Beds The annular fluidized bed is a new type of fluidized bed that has a specific type of motion where it moves in radial. There is relatively little axial mixing of gases and there is radial motion. The axial flow profile of the annular fluidized bed can be determined by pressure drops along the plant height, which can be divided into three major parts: the annulus, the bottom and the top part of the mixing chamber. Based on the height of the bed, while the annulus has a porosity close to the solids minimal fluidization porosity, each region of bed is characterized by different pressure gradients.
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However, the measured velocities may not be an accurate portrayal of the actual solids velocities in the region where high transversal and radial mixing are present. This is due to only vertical velocities being recorded by the capacitance probes. Hence, the calculated solids mass fluxes always have to be considered in the same direction. To summarize, the fully developed flow pattern in the annular fluidized bed shows a core-annulus structure, which is “characterized by the typical formation of a central jet surrounded by a region of high solids concentration at the bottom of the mixing chamber.” Varying the fluidization velocity in the annulus promotes more solids to be removed from bubbles and enables the convective mass flux to penetrate into the jet increase.
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For a new well in the process of being drilled, this would be the void between the drill string and the formation being drilled. An easy way to visualise this would be to stand a straw (purple in diagram) straight up in the center of a glass of water. All of the water in between the straw and the sides of the glass would be the annulus (yellow area in diagram), with the straw itself representing the drill string and the sides of the glass representing the formation. While drilling, drilling fluid is pumped down the inside of the drill string and pushes the drill cuttings up the annulus to the surface, where the cuttings are removed from the drilling fluid (drilling mud) by the shale shakers.
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The nucleus in a cell for example will show up darkly against the surrounding cytoplasm. Contrast is excellent; however it is not for use with thick objects. Frequently, a halo is formed even around small objects, which obscures detail. The system consists of a circular annulus in the condenser, which produces a cone of light.
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The caps of the fruit bodies are between wide, with a convex shape and a villous, involute margin. The cap surface is covered with dark grey to black erect scales. The stipe is up to long and thick. It is coloured like the cap and has a woolly surface and a thick, ascending annulus.
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The original raker foundation piles were retained, but cast-iron clips were bolted around them, and the annulus between clips and pile filled with cement. Although by August 1883 the viaduct reconstruction was sufficiently far advanced that construction traffic was run over it, passenger services over the line did not resume until 1 May 1884.
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It has sometimes been speculated that his true name was Olof (Anlaufr), represented in Latin chronicles as Anulo, which could have been misinterpreted as Latin annulus, meaning "ring".Birger Nerman (1916) "Torgny lagman", Arkiv för nordisk filologi 28 311 ; Carl Bernadotte et al. (eds) (1956), Sveriges hundra konungar. Stockholm: Biblioteksböcker, p. 74-6, 92.
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The basic concept of an RDE is a detonation wave that travels around a circular channel (annulus). Fuel and oxidizer are injected into the channel, normally through small holes or slits. A detonation is initiated in the fuel/oxidizer mixture by some form of igniter. After the engine is started, the detonations are self-sustaining.
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Species of Dipteris grow from creeping rhizomes,F. O. Bower and have large stalks to the sporangium and annulus. The rhizomes have bristles (or hairs) and the fronds have uniseriate hairs (having one line or series). All species of Dipteris have spore-capsules that are carried on the lower surface of the broad lobed frond.
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The data suggests the presence of circumstellar disk of orbiting dust, which is likely being replenished via debris from comets or asteroids. The temperature of this dust indicates the inner edge of the disk annulus comes to within 0.4 AU of the host star, while the outer edge extends out to around 22 AU.
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Statically and dynamically balanced. Seven main bearings and six throws. Internal oilway, with feed from both ends, used to distribute lubricants to main and big end bearings. "Floating" front end bearing consisting of an internally toothed annulus bolted to crankshaft, meshing with and incorporating a semi-floating ring, internally splined to a short coupling shaft.
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Prolapse occurs when the mitral valve leaflets are displaced more than 2 mm above the mitral annulus high points. The condition can be further divided into classic and nonclassic subtypes based on the thickness of the mitral valve leaflets: up to 5 mm is considered nonclassic, while anything beyond 5 mm is considered classic MVP.
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On wells with gas lift capability, many operators consider it prudent to install a valve, which will isolate the A annulus for the same reasons a DHSV may be needed to isolate the production tubing in order to prevent the inventory of natural gas downhole from becoming a hazard as it became on Piper Alpha.
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Given a difference in the hydrostatic pressures, the fluid will try to reach a balanced point. This is called U-tubing, and it explains why there is often a flow from the pipe when making connections. This is often evident when drilling fast because the effective density in the annulus is increased by cuttings.
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A mud pump (sometimes referred to as a mud drilling pump or drilling mud pump), is a reciprocating piston/plunger pump designed to circulate drilling fluid under high pressure (up to ) down the drill string and back up the annulus. A mud pump is an important part of the equipment used for oil well drilling.
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The first logo was used for 18 years from 1971 to 1989 and was designed by Bert Aldridge. It consisted of an image of the base of a maxillary Angle's trimmed study model surrounded by an annulus with the words "ORTHODONTIC" and "TECHNICIANS" at the top and "ASSOCIATION" at the bottom, separated by dashes.
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Spectral tissue velocity curves from the mitral annulus at the septal (left) and lateral (right) points. The curves show multiple heartbeats. Pulsed wave spectral tissue Doppler has become a universal tool that is part of the general echocardiographic examination. Like any other echocardiographic measurement, measures by tissue Doppler should be interpreted in the context of the whole examination.
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This refers to the integrity of the production tubing. Common threats to tubing integrity are erosion and corrosion by production fluids, which denude the steel. The other threat is pressure differential between the tubing and the 'A' annulus. If it exceeds the rated pressure of the tubing, there is a risk of tubing burst or tubing collapse.
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A. N. Kolmogorov, "On the Conservation of Conditionally Periodic Motions under Small Perturbation of the Hamiltonian [О сохранении условнопериодических движений при малом изменении функции Гамильтона]," Dokl. Akad. Nauk SSR 98 (1954). This was rigorously proved and extended by Jürgen Moser in 1962J. Moser, "On invariant curves of area- preserving mappings of an annulus," Nachr. Akad. Wiss.
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Velocity is at . It can be distinguished from the 9-mm Ball MK 1z by its purple annulus around a silver primer. India and Pakistan manufactured 9mm Parabellum ammunition to this standard after independence. Canada's Cartridge S.A. Ball 9 m/m CDN Mark I (9-mm Ball CDN MK 1), made since 1955, has similar ballistics.
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The upper surface is wrinkled, while the lower surface is more or less smooth, occasionally cracking and forming patches. Also, the lower surface sometimes yellows in age or when bruised, forming a superior, pendulous annulus at maturity. The stipe gradually becomes blackish from adhering spores. The spores are 5–6.5 by 4–5 μm, elliptical, and smooth.
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To retrieve a core, an annulus of ice must be removed from around the cylindrical core.Hubbard & Glasser (2005), pp. 44–46. The core should be unbroken, which means that vibrations and mechanical shocks must be kept to a minimum, and changes in temperature which could cause thermal shock to the core must also be avoided.Talalay (2014), p. 345.
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It possesses fifteen denticulations around its vent. While in preservation, the animal is of a lilac-grey colour with a brownish tinge, being slightly paler ventrally. Lateral stripes extend from about the second or third posteriormost annulus to about the eye level on the upper jaw. Narrow and pale lines extend dorsally and are thickest near the nares.
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Scales are small and present from the primary annulus 175. Coloration is uniform lavender, becoming lighter anteriorly and ventrally. The coloration is caused by tiny, closely spaced pinkish-cream punctate glands on darker background; when these become closer together and eventually fuse, they give rise to the more pinkish appearance of the head and ventral region.
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Adult males measure and adult females in snout–vent length. The snout is short, ovoid to subacuminate in dorsal view and rounded in lateral view. The tympanum is distinct, with raised annulus, although it is partly obscured by the supra-tympanic fold. Skin of the dorsum is smooth but has numerous low warts and short, low ridges.
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Cavitation plays a role in the spore dispersal mechanisms of certain plants. In ferns, for example, the fern sporangium acts as a catapult that launches spores into the air. The charging phase of the catapult is driven by water evaporation from the annulus cells, which triggers a pressure decrease. When the negative pressure reaches approximately 9MPa, cavitation occurs.
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325, 331–336, 355–362. Also called Phaethontias. It contains the southern part of Caloris Planitia, which is the largest and best preserved basin seen by Mariner 10. This basin, about 1550 km in diameter, is surrounded by a discontinuous annulus of ejecta deposits of the Caloris Group that are embayed and covered by broad expanses of smooth plains.
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Its thick periphery forms a fibrocartilaginous ring called the annulus tympanicus or Gerlach's ligament. while the central umbo tents inward at the level of the tip of malleus. The middle fibrous layer, containing radial, circular, and parabolic fibers, encloses the handle of malleus. Though comparatively robust, the pars tensa is the region more commonly associated with perforations.
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Fascicular tachycardia usually arises from the posterior fascicle of the left bundle branch. They produce QRS complexes of relatively short durations with a right bundle branch block pattern. Tachycardias originating in the anterior left fascicle would lead to right axis deviation. Right ventricular outflow tract tachycardia originates from the outflow tract of the right ventricle or the tricuspid annulus.
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Psychrophrynella usurpator is a moderately robust-bodied frog with moderately long legs, without tympanic membrane but with a tympanic annulus that is visible through the skin, and rounded snout. Males measure and females in snout–vent length. Dorsum is gray to brown with smooth skin. Males have vocal sacs and slits and call in mid- afternoon.
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A Penrose triangle depicts a nontrivial element of the first cohomology of an annulus with values in the group of distances from the observer. Reprinted from In mathematics, specifically algebraic topology, Čech cohomology is a cohomology theory based on the intersection properties of open covers of a topological space. It is named for the mathematician Eduard Čech.
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A homeomorphism of Rn is called stable if it is a product of homeomorphisms each of which is the identity on some non-empty open set. The stable homeomorphism conjecture states that every orientation-preserving homeomorphism of Rn is stable. previously showed that the stable homeomorphism conjecture is equivalent to the annulus conjecture, so it is true.
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General colour of dorsum metallic blue, green, or purple; abdominal venter yellow, broadly margined with purple laterad to spiracles, spiracles II–VII each surrounded by a rounded black spot; pro-, meso- and metepimeroids together with the supracoxal lobes yellow; coxae and trochanters pale yellow, femora with an apical annulus and longitudinal bands black, tibiae and tarsi black.
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These technologies transfer heat to the oil shale by conducting it through the retort wall. The shale feed usually consists of fine particles. Their advantage lies in the fact that retort vapors are not combined with combustion exhaust. The Combustion Resources process uses a hydrogen-fired rotating kiln, where hot gas is circulated through an outer annulus.
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Cementing is performed by circulating a cement slurry through the inside of the casing and out into the annulus through the casing shoe at the bottom of the casing string. In order to precisely place the cement slurry at a required interval on the outside of the casing, a plug is pumped with a displacement fluid behind the cement slurry column, which "bumps" in the casing shoe and prevents further flow of fluid through the shoe. This bump can be seen at surface as a pressure spike at the cement pump. To prevent the cement from flowing back into the inside of the casing, a float collar above the casing shoe acts as a check valve and prevents fluid from flowing up through the shoe from the annulus.
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Annulus of the Italian Nobility. XXXII Edition, Teglio (SO), 2015, S.A.G.I. Publishing house, Volume 2 of Part II, Sessa's voice (2nd branch, extinct in the Cats Grams).Sesto S. Giovanni, ISEC Foundation, Archives "Zaccaria", General Archive: Administration, Acts of Different Families, Envelope 15, Fasc. 83, Gonzaga (Mantova) 1861–1864: Notarial acts concerning the property and possessions of Riva and Gatti Grams families.
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The lamellae are adnate, and light brown to dark purple brown in maturity, with lighter gill edges. There is no distinct annulus, but immature P. cyanescens specimens do have a cobwebby veil which may leave an annular zone in maturity. Both the odor and taste are farinaceous. P. cyanescens has smooth, elliptical spores which measure 9 - 12 x 5 - 8 µm.
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The bony part forms the inner two thirds. The bony part is much shorter in children and is only a ring (annulus tympanicus) in the newborn. The layer of epithelium encompassing the bony portion of the ear canal is much thinner and therefore, more sensitive in comparison to the cartilaginous portion. Size and shape of the canal vary among individuals.
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Main host plants are Gossypium species (Malvaceae), Coffea arabica (Rubiaceae), Citrus species (Rutaceae) and Vernonia amygdalina (Asteraceae).Le monde des insectes This species reproduces at the beginning of the dry season (November–December). The full development lasts 56 days.Mbondji, P. M.; Pluot-Sigwalt, D. Biological data on Sphaerocoris annulus (F.) in Cameroon (Heteroptera, Scutelleridae) Bulletin de la Société Entomologique de France 2000 Vol.
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The cloaking region is to be contained within the annulus R1 < r < R2. A simple transformation that achieves the desired result can be found by taking all fields in the region r < R2 and compressing them into the region R1 < r < R2. The coordinate transformations do not alter Maxwell's equations. Only the values of ε′ and µ′ change over time.
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There is some yellow suffusion irrorated with brown below the end of the cell and at the middle of the inner margin. The postmedial line is formed by a series of small black-brown lunules. The hindwings are white with a slight yellow tinge. There is a black-brown discoidal annulus, as well as a maculate black-brown postmedial line.
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A. litoralis is a white or grey-white mushroom with a compact cap that may reach a width of up to . The cap is often depressed when older and rests of the annulus may occur on the outer rim. While rose-coloured at a young age, the gills become dark brown as the mushroom grows older. The stem is tall and wide.
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In 1932 George Birkhoff described his "remarkable closed curve", a homeomorphism of the annulus that contained an invariant continuum. Marie Charpentier showed that this continuum was indecomposable, the first link from indecomposable continua to dynamical systems. The invariant set of a certain Smale horseshoe map is the bucket handle. Marcy Barge and others have extensively studied indecomposable continua in dynamical systems.
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Smooth plains are most strikingly exposed in a broad annulus around the Caloris basin. No unequivocal volcanic features, such as flow lobes, leveed channels, domes, or cones are visible. Crater densities indicate that the smooth plains are significantly younger than ejecta from the Caloris basin. In addition, distinct color units, some of lobate shape, are observed in newly processed color data.
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The check-valve assembly fixed within the float collar prevents flow back of the cement slurry when pumping is stopped. Without a float collar or float shoe, the cement slurry placed in the annulus could U-tube, or reverse flow back into the casing. The greater density of cement slurries than the displacement mud inside the casing causes the U-tube effect.
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The photos on the right show the planet carrier from a Ford FMX automatic transmission. The planet carrier is the central part of a planetary gear set. Not shown are the two sun gears, called primary and secondary, that rotate within the carrier. Also not shown is a ring gear, also called an annulus, having internal teeth fitting around the carrier.
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In quantum mechanics, the Byers-Yang theorem states that all physical properties of a doubly connected system (an annulus) enclosing a magnetic flux \Phi through the opening are periodic in the flux with period \Phi_0=hc/e (the magnetic flux quantum). The theorem was first stated and proven by Nina Byers and Chen-Ning Yang (1961), and further developed by Felix Bloch (1970).
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Unlike gap junctions, the cell membranes of adjacent cells merge to form a continuous channel called an annulus. Additionally, within the channel, there is an extension of the endoplasmic reticulum, called a desmotubule, which spans between the cells. The cell-cell interactions facilitated by plasmodesmata play an important role in development of plant cells and tissues and defense against viral infection.
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Culex annulirostris, commonly known as the common banded mosquito, is an insect native to Australia, Fiji, Micronesia, the Philippines and Indonesia. It is regarded as a serious pest species throughout its range. Frederick Askew Skuse described the species in 1889 from specimens collected in the Blue Mountains and Berowra. The species name is derived from the Latin words annulus "ring" and rostrum "bill".
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The hindwings are semihyaline white, the base with slight blackish marks and a blackish discoidal annulus, as well as a fine postmedial line excurved to near the termen between veins 5 and 2, then retracted and interrupted to near the tornus. There is a black-brown apical patch extending to vein 4 and a spot below vein 2, as well as a fine terminal line.
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Aperture geometry, size, and location in the image are important parameters in aperture photometry. APT allows circular and elliptical shapes for apertures and sky annuli (the latter are used for background estimation). The rotation can be controlled in the case of an ellipse. The sky annulus will have the same shape as the aperture, but with larger inner and outer radii than the aperture.
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Filatima obscuroocelella is a moth of the family Gelechiidae. It is found in North America, where it has been recorded from Texas.Filatima at funetmothphotographersgroup There are three obscure brownish ochreous spots on the forewing, one of which is on the disc, another near it on the fold, and the third at the end of the cell, this last having an indistinct annulus around it.Cincinnati Q. J. Sci.
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Chamaeota is a genus in the Pluteaceae family of small- to medium-sized mushrooms. They have a central stipe, free gills, smooth pink spores, and a partial veil that usually forms an annulus (ring) on the stipe. Chamaeota can be distinguished from Volvariella by its lack of a volva and from Entolomataceae by its free gills and smooth spores. Members of Chamaeota are extremely rare.
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Under the right conditions these waves will then reflect off the surface and repeat another arc. Each arc is called a CZ annulus. CZs are found every 33 nautical miles (61 km) forming a pattern of concentric circles around the sound source. Sounds that can be detected for only a few miles in a direct line can therefore also be detected hundreds of miles away.
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If a sequence T_1,T_2,\ldots of tilings of a surface is conformal (K) in the above sense, then there is a conformal structure on the surface and a constant K' depending only on K in which the classical moduli and approximate moduli (from T_i for i sufficiently large) of any given annulus are K'-comparable, meaning that they lie in a single interval [r,K'r].
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The gardens have three basic components: the rose beds themselves, perimeter plantings of trees and the lawn. The rose beds in each garden are laid out in plan to symbolise the petals of a fully opened rose. This consists of a central circular bed enclosed by punctuated annulus beds in a formal quartered configuration. The replacement of ageing roses with new varieties occurs regularly.
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Redtail surfperch grow to at least 2.1 kg (4.5 pounds), 41 cm total length (16 inches); and reach the age of 14 years. Average back calculated length in Oregon (i.e. length at winter scale ring -annulus formation) at age 1 is 3.9 inch (100 mm) and at age 2 is 6.5 inch (164 mm). By age 3 the average length of females is larger than for males.
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All closed disks are equivalent as Klein surfaces. A closed annulus in the complex plane is a Klein surface (compact, with boundary). Not all annuli are equivalent as Klein surfaces: there is a one- parameter family of inequivalent Klein surfaces arising in this way from annuli. By removing a number of open disks from the Riemann sphere, we obtain another class of Klein surfaces (compact, with boundary).
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Futurism, futurism.com, Astronomy Photo of the Day: 10/2/15 — NGC 34 The merger destroyed any galactic habitable zone that may have been there before the merger. For the Milky Way, the galactic habitable zone is commonly believed to be an annulus with an outer radius of about 10 kiloparsecs and an inner radius close to the Galactic Center, both of which lack hard boundaries.
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Diagram of a basidiomycete stipe with an annulus and volva In mycology, a stipe () is the stem or stalk-like feature supporting the cap of a mushroom. Like all tissues of the mushroom other than the hymenium, the stipe is composed of sterile hyphal tissue. In many instances, however, the fertile hymenium extends down the stipe some distance. Fungi that have stipes are said to be stipitate.
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A double-walled pipe is a secondary contained piping system. It is a pipe within a pipe, or encased in an outer covering, with an annulus (interstitial space) between the two diameters. The inner pipe is the primary or carrier pipe and the outer pipe is called the secondary or containment pipe. The great majority of double-walled piping applications involve wastewater, groundwater, and process safety.
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The Letters Patent issued by the Canadian Heraldic Authority describes the badge as: Azure a bezant charged with a maple leaf Gules thereon a key palewise wards upward to the dexter its bow enfiled by two lightning flashes in saltire Or the whole within an annulus Or fimbriated and inscribed NUNTIUM COMPARAT ET CUSTODIT in letter Azure and ensigned by a representation of the Royal Crown.
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The coxae surround a single sternum. In well preserved palaeocharinids there is a ring, or annulus, around the trochanter–femur joint which may be the remains of an earlier leg segment. The legs are largely unmodified, although in Anthracosironidae the forelegs are quite large and spiny, presumably to help catch prey. The legs end in three claws, two large ones and a smaller median claw.
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One problem associated with using fin rays to age older fish is the center may be resorbed, resulting in the loss of the first two annuli. It is therefore necessary to determine an average width for the first two annuli by examining the fins from juvenile fish. This measurement can then be used to estimate the position of the third annulus on older fish.
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The supra-tympanic fold is moderate. Males have white spines in most parts of the body while females have spines only in the region of tympanum (tympanic annulus and tympanic membrane are absent). The dorsum and venter of preserved specimens are uniform brown and lack pattern; the color of live individuals is not known. The fingers and toes have rounded tips; the toes have basal webbing.
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Annular mist flow occurs at high gas velocities. A thin film of liquid is present around the annulus of the pipe. Typically most of the liquid is entrained in the form of droplets in the gas core. As a result of gravity, there is usually a thicker film of liquid on the bottom of the pipe as opposed to the top of the pipe.
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A tubing hanger is a component used in the completion of oil and gas production wells. It is set in the tree or the wellhead and suspends the production tubing and/or casing. Sometimes it provides porting to allow the communication of hydraulic, electric and other downhole functions, as well as chemical injection. It also serves to seal-in the annulus and production areas.
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Its color may range from white to yellowish orange, and the surface may be smooth, or covered with small flakes. The base of the stem usually has chrome yellow flakes of universal veil material adhering loosely to the bulb, or in the soil around the base. The partial veil leaves a skirt-like ring, (annulus) on the upper stem. The spore print of A. flavoconia is white.
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The stipe has a conspicuous but soon fading membranous yellowish-white annulus. The pileus trama is light yellow, similar to the color of the cap. The odor is fungal. The verrucose spores are ellipsoid to oblong, amygdaliform, thick walled, and lack a germ pore and plague, but have a superhilar depression. They typically measure 8.0 - 8.8 (-11.2) x by 5–6 (6 - 8) μm.
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The majority of spinal disc herniations occur in the lumbar spine (95% at L4–L5 or L5–S1). The second most common site is the cervical region (C5–C6, C6–C7). The thoracic region accounts for only 1–2% of cases. Herniations usually occur postero-laterally, at the points where the annulus fibrosus is relatively thin and is not reinforced by the posterior or anterior longitudinal ligament.
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The cartridges were based on a Lapua design. The bullets had Gilding Metal (GM) or Gilding Metal Coated Steel (GMCS) jackets and Gilding Metal-clad brass cases. Lake City cartridges had red sealant on the primer annulus and Frankfort Arsenal used purple sealant. They came in 20-round cartons that were marked with special short batch numbers that lacked the contractor code and date.
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A new method of treating herniated discs is the direct cause of any root is termonukleoplastic, the treatment consisting in introducing into the annulus fibrous of a special catheter tip heating. Warming up for a few minutes end to 65 °C results in the destruction of pain- sensitive nerve endings within the fibrous ring, reducing the volume of disk space and alleviate inflammation associated chronic irritation.
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He contributed to the mathematical field of 4-manifolds, including a proof of the 4-dimensional annulus theorem. In surgery theory, he made several important contributions: the invention of the assembly map, that enables a functorial description of surgery in the topological category, with his thesis advisor, William Browder, the development of an early surgery theory for stratified spaces, and perhaps most importantly, he pioneered the use of controlled methods in geometric topology and in algebra. Among his important applications of "control" are his aforementioned proof of the 4-dimensional annulus theorem, his development of a flexible category of stratified spaces, and, in combination with work of Robert D. Edwards, a useful characterization of high- dimensional manifolds among homology manifolds. In addition to his work in mathematical research, he has written articles on the nature and history of mathematics and on issues of mathematical education.
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Many cordless drills incorporate this type of torque limiter in a planetary gearset. It may be a part of an assembly of multiple gearsets used to primarily reduce speed and multiply torque as well as perform ratio changes. The torque limiter is typically the last gearset in the transmission. It uses the planet carrier as the input with the sun gear as the output, and the annulus normally locked.
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Concerning the history of mathematics, he was known as critical to Moritz Cantor. With Soichi Kakeya, he is known for the Eneström-Kakeya theoremRobert Bentley Gardner (1997) "Some generalizations of the Eneström-Kakeya Theorem", Acta Mathematica Hungarica 74(1–2):125–34. which determines an annulus containing the roots of a real polynomial. In 1923 George Sarton wrote, "No one has done more for the sound development of our studies".
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The Greek poet Anacreon (582 BCE – 485 BCE), showing kynodesmē Infibulation literally means to close with a clasp or a pin. The word is used to include suturing of the foreskin over the head of the penis. Infibulation is seen in rock art in Southern Africa. Early Greek infibulation consisted of piercing the foreskin and applying a gold, silver or bronze ring (annulus), a metal clasp (fibula) or pin.
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Combustion Resources worked under a grant from the US Department of Energy to research and optimize current designs of shale oil extraction. It sought to eliminate carbon dioxide emissions from the shale oil production process. Pyrolysis occurs in a rotating kiln heated by hot gas flowing through an outer annulus. The hot gas is created by burning hydrogen generated in a separate unit by coal gasification followed by carbon dioxide separation.
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A trepan, sometimes called a BTA drill bit (after the Boring and Trepanning Association), is a drill bit that cuts an annulus and leaves a center core. Trepans usually have multiple carbide inserts and rely on water to cool the cutting tips and to flush chips out of the hole. Trepans are often used to cut large diameters and deep holes. Typical bit diameters are and hole depth from up to .
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Species of the genus Niceforonia are small frogs measuring up to in snout–vent length. The head is narrower than the body and the tympanic membrane is differentiated, but in some species only the tympanic annulus is visible under skin. The dorsum is smooth to weakly tuberculate, whereas the venter is smooth or areolate. The terminal discs on digits are not expanded but usually bear weak circumferential grooves.
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Palaeoscolecids bear an annulated trunk ornamented with circular patterns of phosphatic tesselating plates; a layered cuticle; and an armoured proboscis. They are long and narrow, and can reach tens of centimetres in length. Their cuticle is annulated, typically in complete rings, but sometimes the rings split or only encircle part of the trunk. Each annulus is essentially identical to its neighbours; the only trunk differentiation is at the anterior and posterior.
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When dealing with a small aortic annulus, the surgeon might be forced to insert a small prosthetic aortic valve, with an orifice that is too small in relation to the size of the patient. This is known as patient–prosthesis mismatch. It increases the pressure of the blood flowing through the valve and can negatively affect outcomes. Various techniques and stentless valves have been utilized to avoid this phenomenon.
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It possesses seventeen denticulations around its vent. While in preservation, the animal is a dark brown colour, its venter being a paler tinge of grey. Bright yellow lateral stripes (with a varying width of between ) extend from about the fourth last annulus to about the eye level on the lower jaw. It presents a wide gap at the mandible's tip, giving a darker area between its throat's stripes a "mushroom" shape.
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Provided functionality included rulers (line and arc), windows (rectangular, round, annulus, and pie- shaped regions of interest), feature finders (line and arc fitters), normalized grayscale correlation, blob analysis, processing tools (gradient or Sobel edge detection, thresholding, morphology, image subtraction, histogram, frame copy, pan & zoom, and convolutions), and feature-based recognition. Roth, Scott. New Vision System Recognizes Touching Parts, ROBOTS 8 Conference Proceedings (SME) 1984, pp. 14-1 to 14-12.
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The increased end-systolic volume translates to increased filling pressures of the left ventricle and increased pulmonary venous congestion. The individual may again have symptoms of congestive heart failure. The left ventricle begins to dilate during this phase. This causes a dilatation of the mitral valve annulus, which may worsen the degree of MR. The dilated left ventricle causes an increase in the wall stress of the cardiac chamber as well.
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The frontal nerve branches from the ophthalmic nerve immediately before entering the superior orbital fissure. In then travels superolateral to the annulus of Zinn between the lacrimal nerve and inferior ophthalmic vein. After entering the orbit it travels anteriorly between the roof periosteum and the levator palpebrae superioris. Midway between the apex and base of the orbit it divides into two branches, the supratrochlear nerve and supraorbital nerve.
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The forewings are yellow, irrorated (sprinkled) with rufous scales. There is an indistinct dark sinuous antemedial line and a leaden annulus in the cell, as well as a postmedial leaden band with black edges. There is a dark point on the costa towards the apex and a waved subterminal leaden band. The hindwings are whitish with a dark discoidal point and traces of a medial line on the inner area.
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Initially solid, the stipe becomes hollow with age; it is cottony (floccose) to scaly toward the base. The annulus is abundant and double-layered; it is bent downward toward the stem, smooth and whitish on the upper side, and covered with cottony scales on the lower side. Agaricus subrufescens is edible, with a somewhat sweet taste and an almond aroma resulting from benzaldehyde, benzyl alcohol, benzonitrile, and methyl benzoate.
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This is called an annular eclipse, from Latin annulus, meaning "ring". For a total solar eclipse to happen, the ratio of the apparent diameters of the Moon and of the Sun must be 1.0 or more, and the three celestial bodies (Sun, Earth and Moon) must be aligned centrally enough. When that is the case, the Moon's disk covers the Sun's disk in the sky completely. The path of totality (i.e.
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If there is an unexplained increase in the volume of surface mud in the pit (a large tank that holds drilling fluid on the rig), it could signify an impending kick. This is because as the formation fluid feeds into the wellbore, it causes more drilling fluid to flow from the annulus than is pumped down the drill string, thus the volume of fluid in the pit(s) increases.
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Amanita flavoconia, commonly known as yellow patches, yellow wart, orange Amanita, or yellow-dust Amanita, is a species of mushroom in the family Amanitaceae. It has an orangish-yellow cap with yellowish-orange patches or warts, a yellowish-orange annulus, and a white to orange stem. Common and widespread throughout eastern North America, Amanita flavoconia grows on the ground in broad-leaved and mixed forests, especially in mycorrhizal association with hemlock.
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Growing to tall by broad, it is a leafless succulent perennial with cactus-like toothed stems, and highly variable, star-shaped, off-white or yellow flowers strongly speckled with maroon, up to in diameter. The flowers may show regular (banded) markings, or irregular ones. They have five pointed or blunt lobes surrounding a central, pentagonal annulus (corona). The flowers may have a faint carrion smell to attract potential insect pollinators.
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Hind wings are yellow with a small rufous spot in the cell and elliptical discoidal annulus; postmedial line rufous, incurved below costa, bent outwards between veins 5 and 2, then oblique; a curved crenulate subterminal line, the apical area suffused with rufous; a terminal rufous line and a line through the cilia. It has a wingspan of .Hampson, G. F. 1912b. Descriptions of new Pyralidae of the subfamily Pyraustinae.
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Bottom hole pressure is used to represent the sum of all the pressures being exerted at the bottom of the hole. The pressure is imposed on the walls of the hole. The hydrostatic fluid column accounts for most of the pressure, but the pressure to move fluid up the annulus also acts on the walls. In larger diameters, this annular pressure is small, rarely exceeding 200 psi (13.79 bar).
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A small roundabout in Waterloo, Ontario. As the overall or external size of a roundabout (in the UK referred to as the Inscribed Circle Diameter – ICD) is reduced, so the maximum practicable (and prescribed) diameter for the central island is also reduced, whilst the width of the circulatory carriageway increases (due to the greater width of vehicle swept path at smaller turning radii). In most cases this results in it being too easy – certainly when traffic is light relative to capacity – for drivers to traverse the roundabout at relatively high speed, with scant regard for road markings or the potential dangers to self or conflicts with other road users. To mitigate this risk, a proportion of the circulatory carriageway – an annulus around the central island – is segregated from general use by demarcation lines and differentiated from the outer annulus of carriageway by a combination of slightly raised surface, adverse crossfall, contrasting colours and textures and demarcating lines.
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We also used those geometrical representations of the cortex, combined with functional MRI, to look for maps in the visual cortex. Steve Engel at Stanford had just developed the phase-encoded stimulus paradigm. He showed that if you present subjects with expanding annulus and rotating wedges, you can apply Fourier analysis to fMRI signals on a voxel-by-voxel basis, and obtain a delay map, or an estimate of the retinotopic representation.
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Annular velocity is the speed of a fluid's movement in a column called an annulus in wells being drilled with circulating drilling fluid.Annulus (mathematics) It is commonly measured in feet per minute (ft/min) or meters per minute (m/min). Annular velocity is often abbreviated as AV, though this is not exclusively so, as AV also refers to apparent viscosity which is calculated from rheometer readings from tests that the mud engineer performs.
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In contrast to septins in yeast, and in contrast to other cytoskeletal components of animals, septins do not form a continuous network in cells, but several dispersed ones in the cytoplasm of the cell cortex. These are integrated with actin bundles and microtubules. For example, the actin bundling protein anillin is required for correct spatial control of septin organization. In the sperm cells of mammals, septins form a stable ring called annulus in the tail.
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Four of the extraocular muscles have their origin in the back of the orbit in a fibrous ring called the annulus of Zinn: the four rectus muscles. The four rectus muscles attach directly to the front half of the eye (anterior to the eye's equator), and are named after their straight paths. Note that medial and lateral are relative terms. Medial indicates near the midline, and lateral describes a position away from the midline.
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The forewings are ochreous brown with a dot in the cell and an annulus at the end of the cell, both blackish. The postmedial line is also blackish, slightly dentate, curved round the end of the cell and terminating about the middle of the inner margin. The hindwings are whitish tinged with ochreous on the outer area and the postmedial line is blackish, interrupted towards vein 2 and not continued to the abdominal margin.
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Moody is an impact crater on Mercury. Moody features a central peak or peak- ring structure and an annulus of dark material on its outer floor. The area inward of the dark ring appears reddish in enhanced color WAC images, indicating the presence of material different in composition from that of either the dark material or the crater's immediate surroundings. Dark material has been found associated with other craters on Mercury, including Munch and Poe.
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Bruising or cutting results in a red stain after a minute. The surface of the stipe is barely striate above the annulus, and smooth below except for fragments of the universal veil. During development the veils rupture and form an upper veil (partial veil), which initially hangs from the edge of the cap, and a lower veil. As the partial veil disintegrates, it often leaves fragments 2–3 mm in size attached to the margin.
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A solution to Laplace's equation defined on an annulus. The Laplace operator is the most famous example of an elliptic operator. In the theory of partial differential equations, elliptic operators are differential operators that generalize the Laplace operator. They are defined by the condition that the coefficients of the highest-order derivatives be positive, which implies the key property that the principal symbol is invertible, or equivalently that there are no real characteristic directions.
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McCauley J.F. et al. (1981) Icarus 47, 184 Individual massifs are typically to long; the inner edge of the unit is marked by basin-facing scarps. Lineated terrain extends for about out from the foot of a weak discontinuous scarp on the outer edge of the Caloris mountains; this terrain is similar to the sculpture surrounding the Imbrium basin on the Moon. Hummocky material forms a broad annulus about from the Caloris mountains.
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Unlike the "crash" gearboxes of the first half of the 20th century, the gearwheels in a preselector box are permanently in mesh in an epicyclic layout. Changing gear with the Wilson box relied on the control of the brake bands that held each epicyclic's annulus in fixed position. The brake band to be selected was controlled by a rotating cam, moved by the gear shift lever. Only one band was engaged for each gear selection.
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The lacrimal nerve branches from the ophthalmic nerve immediately before traveling through the superior orbital fissure to enter the orbit. It travels through it lateral to the frontal nerve outside the annulus of Zinn. After entering, it travels anteriorly along the lateral wall with the lacrimal artery, above the upper margin of the lateral rectus. It receives a communicating branch from the zygomatic nerve which carries the postganglionic parasympathetic axons from the pterygopalatine ganglion.
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The packing unit is situated in the BOP housing between the head and hydraulic piston. When the piston is actuated, its upward thrust forces the packing unit to constrict, like a sphincter, sealing the annulus or openhole. Annular preventers have only two moving parts, piston and packing unit, making them simple and easy to maintain relative to ram preventers. The original type of annular blowout preventer uses a “wedge-faced” (conical-faced) piston.
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Sawyer Point in Cincinnati. The Ohio state flag's design is defined in the Ohio Revised Code, section 5.01: A typical 34-star Union guidon, carried by many Ohio cavalry units during the Civil War. In addition to resembling the letter O and a buckeye nut, the flag's annulus also represents "the original territory of Ohio" in the Northwest Territory. A rectangular Ohio flag flies in front of the Benetka Road Covered Bridge in Ashtabula County.
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Forewings with an oblique antemedial line and a small annulus at end of cell. An oblique postmedial line highly angled below apex, where it encloses a greyish lunule, running to middle of inner margin of hindwing but obsolete on costal area of hindwing, which is paler. The area between the lines of forewing often pale towards costa. Ventral side is rufous or orange yellow, often with an outer area of forewing rufous.
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A second type of example relates to entirely stabilized stimuli. Their colour and lightness fade until they are no longer seen and the area fills in with the colour and lightness of the surrounding region. A famous example of fading under steady fixation is Troxler's fading. When steadily fixating on the central dot for many seconds, the peripheral annulus will fade and will be replaced by the colour or texture of the background.
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The optics of a fundus camera are similar to those of an indirect ophthalmoscope in that the observation and illumination systems follow dissimilar paths. The observation light is focused via a series of lenses through a doughnut-shaped aperture, which then passes through a central aperture to form an annulus, before passing through the camera objective lens and through the cornea onto the retina.Saine PJ. "Fundus Photography: Fundus Camera Optics." Ophthalmic Photographers' Society.
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So to obtain a good splitting circle it should be embedded in a root free annulus A(c,r,R) (center c, inner radius r, outer radius R) with a large relative width R/r. Repeating this process for the factors found, one finally arrives at an approximative factorization of the polynomial at a required precision. The factors are either linear polynomials representing well isolated zeros or higher order polynomials representing clusters of zeros.
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Disc herniation is normally a further development of a previously existing disc protrusion, in which the outermost layers of the annulus fibrosus are still intact, but can bulge when the disc is under pressure. In contrast to a herniation, none of the central portion escapes beyond the outer layers. Most minor herniations heal within several weeks. Anti-inflammatory treatments for pain associated with disc herniation, protrusion, bulge, or disc tear are generally effective.
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The distinctive flowers are on long, bare stalks, which grow from the base of the stems. Each flower has five thin, elongated petal-like lobes, radiating in a star-shape, from a central raised disk or annulus. The colour of most species flowers is shades of reddish brown, except for those of the rare Duvalia parviflora which are cream-coloured. The hermaphroditic flowers measure 1–5 cm in diameter, and have five parts.
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As with all Agaricus species, gills are free, colour progresses with age from pale-pink to a chocolate color, and spores are dark brown. The stipe has a clear annulus (ring). Cap 4–15 cm wide, and appears brownish due to numerous brownish scales on a white background. The stipe is white, 6–12 cm tall and 0.8–2 cm thick, cylindrical and wider towards the bottom, or ending in a bulb.
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As a result, the suture is placed deeply within the septum, and the new neck of the suture, which holds the Dacron patch, extends from the septum. Dor explicates this procedure in detail. When the lesion is placed on the posterolateral wall of the heart, a triangular patch is used and stabilized by the posterior mitral annulus. This placement of the lesion allows for mitral valve replacement to be easily conducted by the transventricular approach.
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This is usually welded or screwed to the top of the surface casing string. The surface casing serves as a foundation pile for the well which transfers the hanging load to the earth. The casing head is prepared with a bowl into which the slips sit and chuck the casing in place. Most casing heads allow for the pressure readings to be taken on the annulus and provide the means to pump out or into if necessary.
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The limbus of fossa ovalis (annulus ovalis) is the prominent oval margin of the fossa ovalis in the right atrium. It is most distinct above and at the sides of the fossa ovalis; below, it is deficient. A small slit- like valvular opening is occasionally found, at the upper margin of the fossa, leading upward beneath the limbus, into the left atrium; it is the remains of the fetal aperture the foramen ovale between the two atria.
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It is noted by its purple annulus around a standard gold-colored primer. The higher-powered Cartridge S.A. Ball 9 m/m Mark IIz (9m/m Ball MK 2z) was in production from September 1943 until 1988, and was graded as NATO standard in 1962. It was designed for use in submachine guns such as the Lanchester, Sten, and Sterling. Bullet weight is over a charge of of Du Pont SR.4898 or Dynamit- Nobel Parabellum Powder.
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The pileus is centered on the stipe, which is long and lacking the volva, annulus and any rhizoids. The basidiospores associated with the fruiting body are grouped in masses and appear to have been produced by the fruiting body after entombment in the resin. Each basidiospore is broadly elliptic and approximately 4.0μm by 3.3μm. These combined characters indicate a possible relation to the modern Tricholomataceae or some of the "dusky- spored taxa" such as Coprinellus disseminatus.
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They pass forward around the optic nerve to the posterior part of the eyeball, pierce the sclera around the entrance of the optic nerve, and supply the choroid (up to the equator of the eye) and ciliary processes. Some branches of the short posterior ciliary arteries also supply the optic disc via an anastomotic ring, the Circle of Zinn-Haller or Circle of Zinn, which is associated with the fibrous extension of the ocular tendons (Annulus of Zinn).
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A distinguishing feature of A. californicus and A. xanthodermus, however, is a thickened annulus at the margin, a phenolic odor, and a yellowing bruise, instead of red. In the case of Agaricus xanthodermus, it occurs quickly, though faintly to not at all in the case of A. californicus. Another similar species, Agaricus bernardii, also stains red and has white flesh, but differentiates on its larger bulk, a sheathing veil, briny odor, and different habitat, namely grass.
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The EDP is designed to carry out its function while under load with a high disconnection angle. An EDP consists of a connector to the rest of the LRP, an isolation valve, an accumulator, a subsea control module and a connection point at the top for connection to the riser pipe. A production retainer valve shuts in the riser and the annulus master valve shuts in the riser. A crossover valve allows circulation of the riser after disconnection.
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In 1979, TAM developed the Casing Annulus Packer (CAP) product line for annular gas migration control. In 1981, TAM developed a hydrological test tool for use in modeling the various aquifers at the Hanford Nuclear Site in Washington. The tool was a multiple packer configuration that allowed selective open hole testing of a distinct test interval. In addition, short intervals were isolated above and below to allow pressure monitoring to verify isolation within the test interval.
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An annular solar eclipse occurs when the Moon's apparent diameter is smaller than the Sun's, blocking most of the Sun's light and causing the Sun to look like an annulus (ring). An annular eclipse appears as a partial eclipse over a region of the Earth thousands of kilometres wide. Occurring only 4.8 days after apogee (September 28, 2005), the Moon's apparent diameter was smaller. It was visible from a narrow corridor through the Iberian peninsula and Africa.
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In being detonative, the heat addition happens only for a small sector volume of premixture (in a combustor annulus) at a constant volume, while the remaining sections refill the chamber with fresh incoming premixture. This method allows for continuous flow in the system while at the same time achieving the pseudo constant volume requirement for the heat addition process. #Reversible, adiabatic (isentropic) expansion of the gas. During this step incoming gas is expanded, usually by turbomachinery.
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For 1969, not a single front-engined car managed to qualify for the race, and ultimately, one would never do so again. All 33 cars in the field were rear-engined piston-powered machines. After the famous near-miss failures of the controversial STP Granatelli Turbine machines in 1967 and 1968, USAC imposed additional restrictions that effectively rendered them uncompetitive. The annulus inlet was further reduced from 15.999 in² to 11.999 in², and the Granatelli team abandoned the project.
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El Gato Negro made his debut in El Gato Negro #1 (October 1993). Cover art by Dave Kramer. Francisco Guerrero made his first published appearance in El Gato Negro #1 written and illustrated by Dominguez in 1993. The first three-part story-arc "Unknown passing, Unforgettable Return" introduced El Graduado, a notorious villain intent on making a large drug-trafficking deal in South Texas in order to gain a seat with the criminal organization known as The Annulus.
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The forewings are silvery white, with a pale red-brown costal area. The antemedial line is pale red-brown and there is a small pale red- brown annulus in upper part of the middle of the cell. The reniform is white, defined by pale red-brown and the postmedial line is also pale red-brown. There is a diffused very pale red-brown patch on the terminal area below apex, then a very pale red-brown terminal line.
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Stack test valves are positioned at the bottom of a BOP stack and resist downward pressure (unlike BOPs, which resist upward pressures). By closing the test ram and a BOP ram around the drill string and pressurizing the annulus, the BOP is pressure-tested for proper function. The original ram BOPs of the 1920s were simple and rugged manual devices with minimal parts. The BOP housing (body) had a vertical well bore and horizontal ram cavity (ram guide chamber).
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Patent Drawing of Original Shaffer Spherical-type Blowout Preventer (1972) Diagram of an Annular blowout preventer in open and fully closed configurations. The flexible annulus (donut) in blue is forced into the drillpipe cavity by the hydraulic pistons. The annular blowout preventer was invented by Granville Sloan Knox in 1946; a U.S. patent for it was awarded in 1952. Often around the rig it is called the "Hydril", after the name of one of the manufacturers of such devices.
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The floccose stipe and annulus of A. subrufescens Initially, the cap is hemispherical, later becoming convex, with a diameter of . The cap surface is covered with silk-like fibers, although in maturity it develops small scales (squamulose). The color of the cap may range from white to grayish or dull reddish brown; the cap margin typically splits with age. The flesh of A. subrufescens is white, and has the taste of "green nuts", with the odor of almonds.
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Above this is a shorter "urn" which is the same colour, and harbours a bluntly conical or convex operculum on top; of which the annulus is poorly developed. A single peristome is present, with 16 variably pigmented teeth (exostome usually consists of 8 teeth). Stomata are often abundant on the sporangium. A haploid calyptra, composed of tissue from the gametophyte, may be present on the sporophyte; it being nearly always mitrate (shaped like a bishop's cap) and smooth.
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Eucalyptus annuliformis was first formally described in 1992 by Peter Grayling and Ian Brooker from a specimen collected near Dandaragan and the description was published in Nuytsia. The specific epithet (annuliformis) is said to be derived from the Latin annulus meaning "ring" and formis meaning "shape", referring to the disc of the fruit. In Latin, the word for "shape" is however formaLewis, C.T. & Short, C. (1879). A Latin dictionary founded on Andrews' edition of Freund's Latin dictionary.
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The jelly-like contents of the disc then move into the spinal canal, pressing against the spinal nerves, which may produce intense and potentially disabling pain and other symptoms. Some authors favour degeneration of the intervertebral disc as the major cause of spinal disc herniation and cite trauma as a minor cause. Disc degeneration occurs both in degenerative disc disease and aging. With degeneration, the disc components – the nucleus pulposus and annulus fibrosus – become exposed to altered loads.
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Lehmers method is as follows. For a given complex polynomial p, with the Schur-Cohn test a circular disk can be found large enough to contain all roots of p. Next this disk can be covered with a set of overlapping smaller disks, one of them placed concentrically and the remaining ones evenly spread over the annulus yet to be covered. From this set, using the test again, disks containing no root of p can be removed.
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Currently the genus is restricted to a smaller but still large group of species that primarily grow on wood, causing a white rot, but other taxa occur on burnt ground following forest fires or camp fires, on peaty or forest soil, but none are known to be mycorrhizal. Many species have prominent partial veils and form an annulus or annular ring on their stipes. None of the species have purplish or purplish brown spore prints. None form acanthocytes on their mycelia.
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The volval tissue is interwoven, with cylindrical, hyaline hyphae that are 4.4–7.3 μm wide. The sphaerocysts here are ellipsoidal to roughly spherical, hyaline, and measure 35–70 by 20–35 μm. In A. gemmata, where they are most abundant in the region just below the cap cuticle, these refractive cells are scattered, and have a width of 3.7–6 μm. Clamp connections are rare in the hyphae of A. gemmata; they are present in the annulus, gill tissue, subhymenium, and cap tissue.
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Laurent series cannot in general be multiplied. Algebraically, the expression for the terms of the product may involve infinite sums which need not converge (one cannot take the convolution of integer sequences). Geometrically, the two Laurent series may have non-overlapping annuli of convergence. Two Laurent series with only finitely many negative terms can be multiplied: algebraically, the sums are all finite; geometrically, these have poles at c, and inner radius of convergence 0, so they both converge on an overlapping annulus.
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Animation about the magnetoresistance discovery Graphs Corbino disc. With the magnetic field turned off, a radial current flows in the conducting annulus due to the battery connected between the (infinite) conductivity rims. When a magnetic field along the axis is turned on,(B points directly out of the page) the Lorentz force drives a circular component of current, and the resistance between the inner and outer rims goes up. This increase in resistance due to the magnetic field is called magnetoresistance.
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A total solar eclipse will occur on December 6, 2067. It is a hybrid event, beginning and ending as an annular eclipse. A solar eclipse occurs when the Moon passes between Earth and the Sun, thereby totally or partly obscuring the image of the Sun for a viewer on Earth. An annular solar eclipse occurs when the Moon's apparent diameter is smaller than the Sun's, blocking most of the Sun's light and causing the Sun to look like an annulus (ring).
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Illustration comparing nonstenotic mitral valve insufficiency to mitral valve stenosis. The mitral valve apparatus comprises two valve leaflets, the mitral valve annulus, which forms a ring around the valve leaflets, and the papillary muscles, which tether the valve leaflets to the left ventricle and prevent them from prolapsing into the left atrium. The chordae tendineae are also present and connect the valve leaflets to the papillary muscles. Dysfunction of any of these portions of the mitral valve apparatus can cause regurgitation.
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The forewings are ochreous with a fuscous costal area. There is a sinuous dark antemedial line with a small annulus in the cell beyond it, as well as a large ochreous-centered discocellular reniform dark patch with a waved postmedial line with a large dark apical patch beyond it. There are two small ochreous spots on its outer edge. The hindwings are ochreous with a discocellular speck, as well as an apical dark patch and a series of marginal specks.
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Disk biacuplasty' is a medical procedure that applies heat to the annulus of disks that separate the vertebra of the back with the goal of ablating the neurons that generate pain sensations. The procedure is designed to reduce chronic back pain caused by the intervertebral discs. The procedure is in the early stages of testing with some evidence of efficacy. As possible advantages to conventional techniques, the developers of the procedure cite its ease of use and a lack of artificial concentric fissures.
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The tail is yellowish with 6 distinct, brown, semicircle bands with the spaces between broader than the banding. Regenerated tail parts are brown with cream blotches. The ventral surface of the gecko is light pink to white. The genus Parsigecko is distinguished from other genera in Gekkonidae by a combination of the following: dorsal scales that are smooth, granular, subequal in size, not tuberculate and not imbricated, and two strongly keeled scales on the sides of each annulus of the tail.
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A bi disk is a ritual object in the shape of a flat ring (annulus). The earliest archeological specimens were carved from stone (usually nephrite) and date back to the late Neolithic period; they became important burial elements during the 3rd millennium BC. They were placed on or near the head of the deceased person. Glass bi disks are the most numerous kind of monochrome glass objects. They first became abundant in the Chu kingdom during the Warring States period.
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Another characteristic specific to this species and used to distinguish it from other Scutellaria species is that the inflorescence lack an annulus within the corolla tube near the top of the calyx; this is the only species of Scutellaria Section Annulatae that is exannulate. Flowers bloom from mid-May to June, and fruits mature in June and early July.•U.S. Fish and Wildlife Service. 2002. Endangered and threatened wildlife and plants; reclassification of Scutellaria montana (Large-flowered skullcap) from endangered to threatened.
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The most common complications of QAV are aortic regurgitations. This is caused by the inadequate closing of the four cusps at the end of systole. The fourth dysplastic cusp is incapable of fully closing the aortic annulus, which causes a backflow of blood through the aortic valve. Using transthoracic echocardiograms, 3-D TEE and ECG traces, it is also possible to find left ventricular hypertrophy, bundle branch blocks, and abnormal displacement of the ostium in the right coronary artery in association with QAV.
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Psilocybe ovoideocystidiata spores Psilocybe ovoideocystidiata is a psilocybin mushroom in the section Stuntzae, having psilocybin and/or psilocin as main active compounds. It is closely related to P. subaeruginascens from Java, P. septentrionalis from Japan, and P. wayanadensis from India. This mushroom was first documented by Richard V. Gaines in Montgomery County, Pennsylvania in June 2003. Although it is sometimes confused with Psilocybe caerulipes, it can be distinguished by its rhomboid spores, larger stature, earlier fruiting season and membranous annulus.
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There are five stages to the waterspout life cycle. Initially, a prominent circular, light-colored disk appears on the surface of the water, surrounded by a larger dark area of indeterminate shape. After the formation of these colored disks on the water, a pattern of light and dark- colored spiral bands develop from the dark spot on the water surface. Then, a dense annulus of sea spray, called a cascade, appears around the dark spot with what appears to be an eye.
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The simplest model for horizontal axis wind turbine aerodynamics is blade element momentum theory. The theory is based on the assumption that the flow at a given annulus does not affect the flow at adjacent annuli. This allows the rotor blade to be analyzed in sections, where the resulting forces are summed over all sections to get the overall forces of the rotor. The theory uses both axial and angular momentum balances to determine the flow and the resulting forces at the blade.
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An annular solar eclipse occurred on December 26, 2019. A solar eclipse occurs when the Moon passes between Earth and the Sun, thereby totally or partly obscuring the Sun for a viewer on Earth. An annular solar eclipse occurs when the Moon's apparent diameter is smaller than the Sun's, blocking most of the Sun's light and causing the Sun to look like an annulus (ring). An annular eclipse appears as a partial eclipse over a region of the Earth thousands of kilometres wide.
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The forewings are white tinged with sulphur-yellow, the base and costal area pale rufous. The antemedial line is dark tinged with yellow, oblique to just below the cell, then erect. There is a dark annulus in the middle of the cell and a discoidal bar tinged with yellow and filled in with white. The postmedial line is dark tinged with yellow, excurved and waved between veins 5 and 2, then retracted to below the angle of the cell and angled outwards below the submedian fold.
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Another transitional feature of Dimetrodon is a ridge in the back of the jaw called the reflected lamina. The reflected lamina is found on the articular bone, which connects to the quadrate bone of the skull to form the jaw joint. In later mammal ancestors, the articular and quadrate separated from the jaw joint while the articular developed into the malleus bone of the middle ear. The reflected lamina became part of a ring called the tympanic annulus that supports the ear drum in all living mammals.
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The two-phase fluid (water and steam) above the core enters the riser area, which is the upper region contained inside of the shroud. The height of this region may be increased to increase the thermal natural recirculation pumping head. At the top of the riser area is the moisture separator. By swirling the two-phase flow in cyclone separators, the steam is separated and rises upwards towards the steam dryer while the water remains behind and flows horizontally out into the downcomer or annulus region.
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The inferior oblique arises from the orbital surface of the maxilla, lateral to the lacrimal groove. Unlike the other extraocular muscles (recti and superior oblique), the inferior oblique muscle does not originate from the common tendinous ring (annulus of Zinn). Passing lateralward, backward, and upward, between the inferior rectus and the floor of the orbit, and just underneath the lateral rectus muscle, the inferior oblique inserts onto the scleral surface between the inferior rectus and lateral rectus. In humans, the muscle is about 35 mm long.
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The cortina is evident on this young specimen. The species has a sticky brown to orange cap, 4 to 10 cm (1½ to 4 in) in diameter, that is darker towards the center and with a rolled-in margin. The gills are closely spaced, have an adnexed attachment to the stipe, and are pale yellowish at first, becoming rusty brown as the spores mature. Like all species in the genus Cortinarius, young specimens have a cortina, a cobweb- like annulus that protects the developing gills.
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An annular solar eclipse occurred on August 22, 1998. A solar eclipse occurs when the Moon passes between Earth and the Sun, thereby totally or partly obscuring the image of the Sun for a viewer on Earth. An annular solar eclipse occurs when the Moon's apparent diameter is smaller than the Sun's, blocking most of the Sun's light and causing the Sun to look like an annulus (ring). An annular eclipse appears as a partial eclipse over a region of the Earth thousands of kilometres wide.
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An annular solar eclipse occurred on April 29, 1976. A solar eclipse occurs when the Moon passes between Earth and the Sun, thereby totally or partly obscuring the image of the Sun for a viewer on Earth. An annular solar eclipse occurs when the Moon's apparent diameter is smaller than the Sun's, blocking most of the Sun's light and causing the Sun to look like an annulus (ring). An annular eclipse appears as a partial eclipse over a region of the Earth thousands of kilometres wide.
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An annular solar eclipse occurred on April 18–19, 1958. A solar eclipse occurs when the Moon passes between Earth and the Sun, thereby totally or partly obscuring the image of the Sun for a viewer on Earth. An annular solar eclipse occurs when the Moon's apparent diameter is smaller than the Sun's, blocking most of the Sun's light and causing the Sun to look like an annulus (ring). An annular eclipse appears as a partial eclipse over a region of the Earth thousands of kilometres wide.
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An annular solar eclipse will occur on June 1, 2030. A solar eclipse occurs when the Moon passes between Earth and the Sun, thereby totally or partly obscuring the image of the Sun for a viewer on Earth. An annular solar eclipse occurs when the Moon's apparent diameter is smaller than the Sun's, blocking most of the Sun's light and causing the Sun to look like an annulus (ring). An annular eclipse appears as a partial eclipse over a region of the Earth thousands of kilometres wide.
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An annular solar eclipse occurred on December 4, 1983. A solar eclipse occurs when the Moon passes between Earth and the Sun, thereby totally or partly obscuring the image of the Sun for a viewer on Earth. An annular solar eclipse occurs when the Moon's apparent diameter is smaller than the Sun's, blocking most of the Sun's light and causing the Sun to look like an annulus (ring). An annular eclipse appears as a partial eclipse over a region of the Earth thousands of kilometres wide.
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An annular solar eclipse occurred on November 23, 1965. A solar eclipse occurs when the Moon passes between Earth and the Sun, thereby totally or partly obscuring the image of the Sun for a viewer on Earth. An annular solar eclipse occurs when the Moon's apparent diameter is smaller than the Sun's, blocking most of the Sun's light and causing the Sun to look like an annulus (ring). An annular eclipse appears as a partial eclipse over a region of the Earth thousands of kilometres wide.
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An annular solar eclipse will occur on January 5, 2038. A solar eclipse occurs when the Moon passes between Earth and the Sun, thereby totally or partly obscuring the image of the Sun for a viewer on Earth. An annular solar eclipse occurs when the Moon's apparent diameter is smaller than the Sun's, blocking most of the Sun's light and causing the Sun to look like an annulus (ring). An annular eclipse appears as a partial eclipse over a region of the Earth thousands of kilometres wide.
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An annular solar eclipse occurred on September 1, 1951. A solar eclipse occurs when the Moon passes between Earth and the Sun, thereby totally or partly obscuring the image of the Sun for a viewer on Earth. An annular solar eclipse occurs when the Moon's apparent diameter is smaller than the Sun's, blocking most of the Sun's light and causing the Sun to look like an annulus (ring). An annular eclipse appears as a partial eclipse over a region of the Earth thousands of kilometres wide.
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An annular solar eclipse occurred on March 18, 1950. A solar eclipse occurs when the Moon passes between Earth and the Sun, thereby totally or partly obscuring the image of the Sun for a viewer on Earth. An annular solar eclipse occurs when the Moon's apparent diameter is smaller than the Sun's, blocking most of the Sun's light and causing the Sun to look like an annulus (ring). An annular eclipse appears as a partial eclipse over a region of the Earth thousands of kilometres wide.
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An annular solar eclipse will occur on October 25, 2041. A solar eclipse occurs when the Moon passes between Earth and the Sun, thereby totally or partly obscuring the image of the Sun for a viewer on Earth. An annular solar eclipse occurs when the Moon's apparent diameter is smaller than the Sun's, blocking most of the Sun's light and causing the Sun to look like an annulus (ring). An annular eclipse appears as a partial eclipse over a region of the Earth thousands of kilometres wide.
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An annular solar eclipse will occur on October 14, 2042. A solar eclipse occurs when the Moon passes between Earth and the Sun, thereby totally or partly obscuring the image of the Sun for a viewer on Earth. An annular solar eclipse occurs when the Moon's apparent diameter is smaller than the Sun's, blocking most of the Sun's light and causing the Sun to look like an annulus (ring). An annular eclipse appears as a partial eclipse over a region of the Earth thousands of kilometres wide.
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An annular solar eclipse will occur on October 3, 2043. A solar eclipse occurs when the Moon passes between Earth and the Sun, thereby totally or partly obscuring the image of the Sun for a viewer on Earth. An annular solar eclipse occurs when the Moon's apparent diameter is smaller than the Sun's, blocking most of the Sun's light and causing the Sun to look like an annulus (ring). An annular eclipse appears as a partial eclipse over a region of the Earth thousands of kilometres wide.
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An annular solar eclipse will occur on February 28, 2044. A solar eclipse occurs when the Moon passes between Earth and the Sun, thereby totally or partly obscuring the image of the Sun for a viewer on Earth. An annular solar eclipse occurs when the Moon's apparent diameter is smaller than the Sun's, blocking most of the Sun's light and causing the Sun to look like an annulus (ring). An annular eclipse appears as a partial eclipse over a region of the Earth thousands of kilometres wide.
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An annular solar eclipse will occur on February 16, 2045. A solar eclipse occurs when the Moon passes between Earth and the Sun, thereby totally or partly obscuring the image of the Sun for a viewer on Earth. An annular solar eclipse occurs when the Moon's apparent diameter is smaller than the Sun's, blocking most of the Sun's light and causing the Sun to look like an annulus (ring). An annular eclipse appears as a partial eclipse over a region of the Earth thousands of kilometres wide.
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An annular solar eclipse occurred on March 18, 1969. A solar eclipse occurs when the Moon passes between Earth and the Sun, thereby totally or partly obscuring the image of the Sun for a viewer on Earth. An annular solar eclipse occurs when the Moon's apparent diameter is smaller than the Sun's, blocking most of the Sun's light and causing the Sun to look like an annulus (ring). An annular eclipse appears as a partial eclipse over a region of the Earth thousands of kilometres wide.
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An annular solar eclipse occurred on January 25, 1963. A solar eclipse occurs when the Moon passes between Earth and the Sun, thereby totally or partly obscuring the image of the Sun for a viewer on Earth. An annular solar eclipse occurs when the Moon's apparent diameter is smaller than the Sun's, blocking most of the Sun's light and causing the Sun to look like an annulus (ring). An annular eclipse appears as a partial eclipse over a region of the Earth thousands of kilometres wide.
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An annular solar eclipse occurred on August 11, 1961. A solar eclipse occurs when the Moon passes between Earth and the Sun, thereby totally or partly obscuring the image of the Sun for a viewer on Earth. An annular solar eclipse occurs when the Moon's apparent diameter is smaller than the Sun's, blocking most of the Sun's light and causing the Sun to look like an annulus (ring). An annular eclipse appears as a partial eclipse over a region of the Earth thousands of kilometres wide.
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An annular solar eclipse occurred on April 8, 1959. A solar eclipse occurs when the Moon passes between Earth and the Sun, thereby totally or partly obscuring the image of the Sun for a viewer on Earth. An annular solar eclipse occurs when the Moon's apparent diameter is smaller than the Sun's, blocking most of the Sun's light and causing the Sun to look like an annulus (ring). An annular eclipse appears as a partial eclipse over a region of the Earth thousands of kilometres wide.
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An annular solar eclipse occurred on April 30, 1957. A solar eclipse occurs when the Moon passes between Earth and the Sun, thereby totally or partly obscuring the image of the Sun for a viewer on Earth. An annular solar eclipse occurs when the Moon's apparent diameter is smaller than the Sun's, blocking most of the Sun's light and causing the Sun to look like an annulus (ring). An annular eclipse appears as a partial eclipse over a region of the Earth thousands of kilometres wide.
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An annular solar eclipse occurred on January 5, 1954. A solar eclipse occurs when the Moon passes between Earth and the Sun, thereby totally or partly obscuring the image of the Sun for a viewer on Earth. An annular solar eclipse occurs when the Moon's apparent diameter is smaller than the Sun's, blocking most of the Sun's light and causing the Sun to look like an annulus (ring). An annular eclipse appears as a partial eclipse over a region of the Earth thousands of kilometres wide.
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An annular solar eclipse occurred on August 20, 1952. A solar eclipse occurs when the Moon passes between Earth and the Sun, thereby totally or partly obscuring the image of the Sun for a viewer on Earth. An annular solar eclipse occurs when the Moon's apparent diameter is smaller than the Sun's, blocking most of the Sun's light and causing the Sun to look like an annulus (ring). An annular eclipse appears as a partial eclipse over a region of the Earth thousands of kilometres wide.
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An annular solar eclipse occurred on September 11, 1969. A solar eclipse occurs when the Moon passes between Earth and the Sun, thereby totally or partly obscuring the image of the Sun for a viewer on Earth. An annular solar eclipse occurs when the Moon's apparent diameter is smaller than the Sun's, blocking most of the Sun's light and causing the Sun to look like an annulus (ring). An annular eclipse appears as a partial eclipse over a region of the Earth thousands of kilometres wide.
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An annular solar eclipse occurred on September 11, 1988. A solar eclipse occurs when the Moon passes between Earth and the Sun, thereby totally or partly obscuring the image of the Sun for a viewer on Earth. An annular solar eclipse occurs when the Moon's apparent diameter is smaller than the Sun's, blocking most of the Sun's light and causing the Sun to look like an annulus (ring). An annular eclipse appears as a partial eclipse over a region of the Earth thousands of kilometres wide.
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An annular solar eclipse occurred on September 23, 1987. A solar eclipse occurs when the Moon passes between Earth and the Sun, thereby totally or partly obscuring the image of the Sun for a viewer on Earth. An annular solar eclipse occurs when the Moon's apparent diameter is smaller than the Sun's, blocking most of the Sun's light and causing the Sun to look like an annulus (ring). An annular eclipse appears as a partial eclipse over a region of the Earth thousands of kilometres wide.
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An annular solar eclipse occurred on August 22, 1979. A solar eclipse occurs when the Moon passes between Earth and the Sun, thereby totally or partly obscuring the image of the Sun for a viewer on Earth. An annular solar eclipse occurs when the Moon's apparent diameter is smaller than the Sun's, blocking most of the Sun's light and causing the Sun to look like an annulus (ring). An annular eclipse appears as a partial eclipse over a region of the Earth thousands of kilometres wide.
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An annular solar eclipse took place on April 18, 1977. A solar eclipse occurs when the Moon passes between Earth and the Sun, thereby totally or partly obscuring the image of the Sun for a viewer on Earth. An annular solar eclipse occurs when the Moon's apparent diameter is smaller than the Sun's, blocking most of the Sun's light and causing the Sun to look like an annulus (ring). An annular eclipse appears as a partial eclipse over a region of the Earth thousands of kilometres wide.
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An annular solar eclipse occurred on January 16, 1972. A solar eclipse occurs when the Moon passes between Earth and the Sun, thereby totally or partly obscuring the image of the Sun for a viewer on Earth. An annular solar eclipse occurs when the Moon's apparent diameter is smaller than the Sun's, blocking most of the Sun's light and causing the Sun to look like an annulus (ring). An annular eclipse appears as a partial eclipse over a region of the Earth thousands of kilometres wide.
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Dark field and phase contrast microscopies operating principle The basic principle to making phase changes visible in phase-contrast microscopy is to separate the illuminating (background) light from the specimen-scattered light (which makes up the foreground details) and to manipulate these differently. The ring-shaped illuminating light (green) that passes the condenser annulus is focused on the specimen by the condenser. Some of the illuminating light is scattered by the specimen (yellow). The remaining light is unaffected by the specimen and forms the background light (red).
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Aortic and mitral valve disease are termed left heart diseases. Diseases of these valves are more prevalent than disease of the pulmonary or tricuspid valve due to the higher pressures the left heart experiences. Stenosis of the aortic valve is characterized by a thickening of the valvular annulus or leaflets that limits the ability of blood to be ejected from the left ventricle into the aorta. Stenosis is typically the result of valvular calcification but may be the result of a congenitally malformed bicuspid aortic valve.
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An annular solar eclipse will occur on October 4, 2070. A solar eclipse occurs when the Moon passes between Earth and the Sun, thereby totally or partly obscuring the image of the Sun for a viewer on Earth. An annular solar eclipse occurs when the Moon's apparent diameter is smaller than the Sun's, blocking most of the Sun's light and causing the Sun to look like an annulus (ring). An annular eclipse appears as a partial eclipse over a region of the Earth thousands of kilometres wide.
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Jessen (1862), p. 13-29. The names Sigfred and Sigurd were often conflated in medieval texts. As for Anulo, the name might originally represent Old Norse Ánleifr or Áli, though it was misunderstood by medieval Scandinavian chroniclers as Latin annulus which means ring.Storm (1877), p. 396. Saxo Grammaticus and some other medieval compilers of king lists clearly combine the names Sigfred/Sigurd and Anulo/Ring into one person, having received knowledge of 9th century historical events from the chronicle of Adam of Bremen (c. 1075).
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Schone et al. (2006) found that the barnacle Chthamalus fissus and mussel Mytella guyanensis showed faster shell elongation rates at higher temperature, with over 50% of this variability in shell growth explained by temperature changes. The cowry (a sea snail) Monetaria annulus displayed a positive correlation between sea surface temperature (SST) and the thickness of the callus, the outer surface of juvenile shells. Nucella lapillus The predatory intertidal snail Nucella lapillus also develops thicker shells in warmer climates, likely due to constraints on calcification in cold water.
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An annular solar eclipse will occur on December 16, 2085. A solar eclipse occurs when the Moon passes between Earth and the Sun, thereby totally or partly obscuring the image of the Sun for a viewer on Earth. An annular solar eclipse occurs when the Moon's apparent diameter is smaller than the Sun's, blocking most of the Sun's light and causing the Sun to look like an annulus (ring). An annular eclipse appears as a partial eclipse over a region of the Earth thousands of kilometres wide.
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An annular solar eclipse will occur on March 31, 2071. A solar eclipse occurs when the Moon passes between Earth and the Sun, thereby totally or partly obscuring the image of the Sun for a viewer on Earth. An annular solar eclipse occurs when the Moon's apparent diameter is smaller than the Sun's, blocking most of the Sun's light and causing the Sun to look like an annulus (ring). An annular eclipse appears as a partial eclipse over a region of the Earth thousands of kilometres wide.
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An annular solar eclipse will occur on July 24, 2074. A solar eclipse occurs when the Moon passes between Earth and the Sun, thereby totally or partly obscuring the image of the Sun for a viewer on Earth. An annular solar eclipse occurs when the Moon's apparent diameter is smaller than the Sun's, blocking most of the Sun's light and causing the Sun to look like an annulus (ring). An annular eclipse appears as a partial eclipse over a region of the Earth thousands of kilometres wide.
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An annular solar eclipse will occur on July 13, 2075. A solar eclipse occurs when the Moon passes between Earth and the Sun, thereby totally or partly obscuring the image of the Sun for a viewer on Earth. An annular solar eclipse occurs when the Moon's apparent diameter is smaller than the Sun's, blocking most of the Sun's light and causing the Sun to look like an annulus (ring). An annular eclipse appears as a partial eclipse over a region of the Earth thousands of kilometers wide.
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An annular solar eclipse will occur on January 27, 2074. A solar eclipse occurs when the Moon passes between Earth and the Sun, thereby totally or partly obscuring the image of the Sun for a viewer on Earth. An annular solar eclipse occurs when the Moon's apparent diameter is smaller than the Sun's, blocking most of the Sun's light and causing the Sun to look like an annulus (ring). An annular eclipse appears as a partial eclipse over a region of the Earth thousands of kilometres wide.
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An annular solar eclipse will occur on November 4, 2078. A solar eclipse occurs when the Moon passes between Earth and the Sun, thereby totally or partly obscuring the image of the Sun for a viewer on Earth. An annular solar eclipse occurs when the Moon's apparent diameter is smaller than the Sun's, blocking most of the Sun's light and causing the Sun to look like an annulus (ring). An annular eclipse appears as a partial eclipse over a region of the Earth thousands of kilometres wide.
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An annular solar eclipse will occur on October 24, 2079. A solar eclipse occurs when the Moon passes between Earth and the Sun, thereby totally or partly obscuring the image of the Sun for a viewer on Earth. An annular solar eclipse occurs when the Moon's apparent diameter is smaller than the Sun's, blocking most of the Sun's light and causing the Sun to look like an annulus (ring). An annular eclipse appears as a partial eclipse over a region of the Earth thousands of kilometres wide.
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An annular solar eclipse will occur on October 24, 2060. A solar eclipse occurs when the Moon passes between Earth and the Sun, thereby totally or partly obscuring the image of the Sun for a viewer on Earth. An annular solar eclipse occurs when the Moon's apparent diameter is smaller than the Sun's, blocking most of the Sun's light and causing the Sun to look like an annulus (ring). An annular eclipse appears as a partial eclipse over a region of the Earth thousands of kilometres wide.
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An annular solar eclipse will occur on June 11, 2067. A solar eclipse occurs when the Moon passes between Earth and the Sun, thereby totally or partly obscuring the image of the Sun for a viewer on Earth. An annular solar eclipse occurs when the Moon's apparent diameter is smaller than the Sun's, blocking most of the Sun's light and causing the Sun to look like an annulus (ring). An annular eclipse appears as a partial eclipse over a region of the Earth thousands of kilometres wide.
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An annular solar eclipse will occur on June 22, 2066. A solar eclipse occurs when the Moon passes between Earth and the Sun, thereby totally or partly obscuring the image of the Sun for a viewer on Earth. An annular solar eclipse occurs when the Moon's apparent diameter is smaller than the Sun's, blocking most of the Sun's light and causing the Sun to look like an annulus (ring). An annular eclipse appears as a partial eclipse over a region of the Earth thousands of kilometres wide.
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An annular solar eclipse will occur on February 28, 2063. A solar eclipse occurs when the Moon passes between Earth and the Sun, thereby totally or partly obscuring the image of the Sun for a viewer on Earth. An annular solar eclipse occurs when the Moon's apparent diameter is smaller than the Sun's, blocking most of the Sun's light and causing the Sun to look like an annulus (ring). An annular eclipse appears as a partial eclipse over a region of the Earth thousands of kilometres wide.
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An annular solar eclipse will occur on February 17, 2064. A solar eclipse occurs when the Moon passes between Earth and the Sun, thereby totally or partly obscuring the image of the Sun for a viewer on Earth. An annular solar eclipse occurs when the Moon's apparent diameter is smaller than the Sun's, blocking most of the Sun's light and causing the Sun to look like an annulus (ring). An annular eclipse appears as a partial eclipse over a region of the Earth thousands of kilometres wide.
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An annular solar eclipse occurred on May 26, 1854. A solar eclipse occurs when the Moon passes between Earth and the Sun, thereby totally or partly obscuring the image of the Sun for a viewer on Earth. An annular solar eclipse occurs when the Moon's apparent diameter is smaller than the Sun's, blocking most of the Sun's light and causing the Sun to look like an annulus (ring). An annular eclipse appears as a partial eclipse over a region of the Earth thousands of kilometres wide.
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An annular solar eclipse occurred on April 29, 2014. A solar eclipse occurs when the Moon passes between Earth and the Sun, thereby totally or partly obscuring the image of the Sun for a viewer on Earth. An annular solar eclipse occurs when the Moon's apparent diameter is smaller than the Sun's, blocking most of the Sun's light and causing the Sun to look like an annulus (ring). An annular eclipse appears as a partial eclipse over a region of the Earth thousands of kilometres wide.
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An annular solar eclipse occurred on September 7, 1820. A solar eclipse occurs when the Moon passes between Earth and the Sun, thereby totally or partly obscuring the image of the Sun for a viewer on Earth. An annular solar eclipse occurs when the Moon's apparent diameter is smaller than the Sun's, blocking most of the Sun's light and causing the Sun to look like an annulus (ring). An annular eclipse appears as a partial eclipse over a region of the Earth thousands of kilometres wide.
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An annular solar eclipse occurred on December 25, 1935. A solar eclipse occurs when the Moon passes between Earth and the Sun, thereby totally or partly obscuring the image of the Sun for a viewer on Earth. An annular solar eclipse occurs when the Moon's apparent diameter is smaller than the Sun's, blocking most of the Sun's light and causing the Sun to look like an annulus (ring). An annular eclipse appears as a partial eclipse over a region of the Earth thousands of kilometres wide.
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An annular solar eclipse will occur on March 10, 2081. A solar eclipse occurs when the Moon passes between Earth and the Sun, thereby totally or partly obscuring the image of the Sun for a viewer on Earth. An annular solar eclipse occurs when the Moon's apparent diameter is smaller than the Sun's, blocking most of the Sun's light and causing the Sun to look like an annulus (ring). An annular eclipse appears as a partial eclipse over a region of the Earth thousands of kilometres wide.
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An annular solar eclipse will occur on November 15, 2096. A solar eclipse occurs when the Moon passes between Earth and the Sun, thereby totally or partly obscuring the image of the Sun for a viewer on Earth. An annular solar eclipse occurs when the Moon's apparent diameter is smaller than the Sun's, blocking most of the Sun's light and causing the Sun to look like an annulus (ring). An annular eclipse appears as a partial eclipse over a region of the Earth thousands of kilometres wide.
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An annular solar eclipse will occur on February 7, 2092. A solar eclipse occurs when the Moon passes between Earth and the Sun, thereby totally or partly obscuring the image of the Sun for a viewer on Earth. An annular solar eclipse occurs when the Moon's apparent diameter is smaller than the Sun's, blocking most of the Sun's light and causing the Sun to look like an annulus (ring). An annular eclipse appears as a partial eclipse over a region of the Earth thousands of kilometres wide.
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An annular solar eclipse will occur on August 3, 2092. A solar eclipse occurs when the Moon passes between Earth and the Sun, thereby totally or partly obscuring the image of the Sun for a viewer on Earth. An annular solar eclipse occurs when the Moon's apparent diameter is smaller than the Sun's, blocking most of the Sun's light and causing the Sun to look like an annulus (ring). An annular eclipse appears as a partial eclipse over a region of the Earth thousands of kilometres wide.
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An annular solar eclipse will occur on July 23, 2093. A solar eclipse occurs when the Moon passes between Earth and the Sun, thereby totally or partly obscuring the image of the Sun for a viewer on Earth. An annular solar eclipse occurs when the Moon's apparent diameter is smaller than the Sun's, blocking most of the Sun's light and causing the Sun to look like an annulus (ring). An annular eclipse appears as a partial eclipse over a region of the Earth thousands of kilometres wide.
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An annular solar eclipse will occur on October 14, 2088. A solar eclipse occurs when the Moon passes between Earth and the Sun, thereby totally or partly obscuring the image of the Sun for a viewer on Earth. An annular solar eclipse occurs when the Moon's apparent diameter is smaller than the Sun's, blocking most of the Sun's light and causing the Sun to look like an annulus (ring). An annular eclipse appears as a partial eclipse over a region of the Earth thousands of kilometres wide.
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An annular solar eclipse will occur on April 10, 2089. A solar eclipse occurs when the Moon passes between Earth and the Sun, thereby totally or partly obscuring the image of the Sun for a viewer on Earth. An annular solar eclipse occurs when the Moon's apparent diameter is smaller than the Sun's, blocking most of the Sun's light and causing the Sun to look like an annulus (ring). An annular eclipse appears as a partial eclipse over a region of the Earth thousands of kilometres wide.
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An annular solar eclipse will occur on July 3, 2084. A solar eclipse occurs when the Moon passes between Earth and the Sun, thereby totally or partly obscuring the image of the Sun for a viewer on Earth. An annular solar eclipse occurs when the Moon's apparent diameter is smaller than the Sun's, blocking most of the Sun's light and causing the Sun to look like an annulus (ring). An annular eclipse appears as a partial eclipse over a region of the Earth thousands of kilometers wide.
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An annular solar eclipse will occur on June 22, 2085. A solar eclipse occurs when the Moon passes between Earth and the Sun, thereby totally or partly obscuring the image of the Sun for a viewer on Earth. An annular solar eclipse occurs when the Moon's apparent diameter is smaller than the Sun's, blocking most of the Sun's light and causing the Sun to look like an annulus (ring). An annular eclipse appears as a partial eclipse over a region of the Earth thousands of kilometres wide.
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An annular solar eclipse will occur on March 21, 2099. A solar eclipse occurs when the Moon passes between Earth and the Sun, thereby totally or partly obscuring the image of the Sun for a viewer on Earth. An annular solar eclipse occurs when the Moon's apparent diameter is smaller than the Sun's, blocking most of the Sun's light and causing the Sun to look like an annulus (ring). An annular eclipse appears as a partial eclipse over a region of the Earth thousands of kilometres wide.
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An annular solar eclipse will occur on March 10, 2100. A solar eclipse occurs when the Moon passes between Earth and the Sun, thereby totally or partly obscuring the image of the Sun for a viewer on Earth. An annular solar eclipse occurs when the Moon's apparent diameter is smaller than the Sun's, blocking most of the Sun's light and causing the Sun to look like an annulus (ring). An annular eclipse appears as a partial eclipse over a region of the Earth thousands of kilometers wide.
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An annular solar eclipse will occur on November 4, 2097. A solar eclipse occurs when the Moon passes between Earth and the Sun, thereby totally or partly obscuring the image of the Sun for a viewer on Earth. An annular solar eclipse occurs when the Moon's apparent diameter is smaller than the Sun's, blocking most of the Sun's light and causing the Sun to look like an annulus (ring). An annular eclipse appears as a partial eclipse over a region of the Earth thousands of kilometres wide.
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An annular solar eclipse will occur on February 27, 2082. A solar eclipse occurs when the Moon passes between Earth and the Sun, thereby totally or partly obscuring the image of the Sun for a viewer on Earth. An annular solar eclipse occurs when the Moon's apparent diameter is smaller than the Sun's, blocking most of the Sun's light and causing the Sun to look like an annulus (ring). An annular eclipse appears as a partial eclipse over a region of the Earth thousands of kilometres wide.
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An annular solar eclipse occurred on November 11, 1901. A solar eclipse occurs when the Moon passes between Earth and the Sun, thereby totally or partly obscuring the image of the Sun for a viewer on Earth. An annular solar eclipse occurs when the Moon's apparent diameter is smaller than the Sun's, blocking most of the Sun's light and causing the Sun to look like an annulus (ring). An annular eclipse appears as a partial eclipse over a region of the Earth thousands of kilometres wide.
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An annular solar eclipse occurred on March 6, 1905. A solar eclipse occurs when the Moon passes between Earth and the Sun, thereby totally or partly obscuring the image of the Sun for a viewer on Earth. An annular solar eclipse occurs when the Moon's apparent diameter is smaller than the Sun's, blocking most of the Sun's light and causing the Sun to look like an annulus (ring). An annular eclipse appears as a partial eclipse over a region of the Earth thousands of kilometres wide.
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An annular solar eclipse occurred on March 29, 1903. A solar eclipse occurs when the Moon passes between Earth and the Sun, thereby totally or partly obscuring the image of the Sun for a viewer on Earth. An annular solar eclipse occurs when the Moon's apparent diameter is smaller than the Sun's, blocking most of the Sun's light and causing the Sun to look like an annulus (ring). An annular eclipse appears as a partial eclipse over a region of the Earth thousands of kilometres wide.
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An annular solar eclipse occurred on July 10, 1907. A solar eclipse occurs when the Moon passes between Earth and the Sun, thereby totally or partly obscuring the image of the Sun for a viewer on Earth. An annular solar eclipse occurs when the Moon's apparent diameter is smaller than the Sun's, blocking most of the Sun's light and causing the Sun to look like an annulus (ring). An annular eclipse appears as a partial eclipse over a region of the Earth thousands of kilometres wide.
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An annular solar eclipse occurred on June 28, 1908. A solar eclipse occurs when the Moon passes between Earth and the Sun, thereby totally or partly obscuring the image of the Sun for a viewer on Earth. An annular solar eclipse occurs when the Moon's apparent diameter is smaller than the Sun's, blocking most of the Sun's light and causing the Sun to look like an annulus (ring). An annular eclipse appears as a partial eclipse over a region of the Earth thousands of kilometres wide.
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An annular solar eclipse occurred on November 22, 1919. A solar eclipse occurs when the Moon passes between Earth and the Sun, thereby totally or partly obscuring the image of the Sun for a viewer on Earth. An annular solar eclipse occurs when the Moon's apparent diameter is smaller than the Sun's, blocking most of the Sun's light and causing the Sun to look like an annulus (ring). An annular eclipse appears as a partial eclipse over a region of the Earth thousands of kilometres wide.
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An annular solar eclipse occurred on December 2, 1937. A solar eclipse occurs when the Moon passes between Earth and the Sun, thereby totally or partly obscuring the image of the Sun for a viewer on Earth. An annular solar eclipse occurs when the Moon's apparent diameter is smaller than the Sun's, blocking most of the Sun's light and causing the Sun to look like an annulus (ring). An annular eclipse appears as a partial eclipse over a region of the Earth thousands of kilometres wide.
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An annual solar eclipse occurred on November 12, 1947. A solar eclipse occurs when the Moon passes between Earth and the Sun, thereby totally or partly obscuring the image of the Sun for a viewer on Earth. An annular solar eclipse occurs when the Moon's apparent diameter is smaller than the Sun's, blocking most of the Sun's light and causing the Sun to look like an annulus (ring). An annular eclipse appears as a partial eclipse over a region of the Earth thousands of kilometres wide.
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An annular solar eclipse occurred on November 1, 1929. A solar eclipse occurs when the Moon passes between Earth and the Sun, thereby totally or partly obscuring the image of the Sun for a viewer on Earth. An annular solar eclipse occurs when the Moon's apparent diameter is smaller than the Sun's, blocking most of the Sun's light and causing the Sun to look like an annulus (ring). An annular eclipse appears as a partial eclipse over a region of the Earth thousands of kilometres wide.
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An annular solar eclipse occurred on October 22, 1911. A solar eclipse occurs when the Moon passes between Earth and the Sun, thereby totally or partly obscuring the image of the Sun for a viewer on Earth. An annular solar eclipse occurs when the Moon's apparent diameter is smaller than the Sun's, blocking most of the Sun's light and causing the Sun to look like an annulus (ring). An annular eclipse appears as a partial eclipse over a region of the Earth thousands of kilometres wide.
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An annular solar eclipse occurred on January 14, 1945. A solar eclipse occurs when the Moon passes between Earth and the Sun, thereby totally or partly obscuring the image of the Sun for a viewer on Earth. An annular solar eclipse occurs when the Moon's apparent diameter is smaller than the Sun's, blocking most of the Sun's light and causing the Sun to look like an annulus (ring). An annular eclipse appears as a partial eclipse over a region of the Earth thousands of kilometres wide.
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An annular solar eclipse occurred on February 24, 1933. A solar eclipse occurs when the Moon passes between Earth and the Sun, thereby totally or partly obscuring the image of the Sun for a viewer on Earth. An annular solar eclipse occurs when the Moon's apparent diameter is smaller than the Sun's, blocking most of the Sun's light and causing the Sun to look like an annulus (ring). An annular eclipse appears as a partial eclipse over a region of the Earth thousands of kilometres wide.
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An annular solar eclipse occurred on December 13–14, 1936. A solar eclipse occurs when the Moon passes between Earth and the Sun, thereby totally or partly obscuring the image of the Sun for a viewer on Earth. An annular solar eclipse occurs when the Moon's apparent diameter is smaller than the Sun's, blocking most of the Sun's light and causing the Sun to look like an annulus (ring). An annular eclipse appears as a partial eclipse over a region of the Earth thousands of kilometres wide.
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An annular solar eclipse occurred on December 3, 1918. A solar eclipse occurs when the Moon passes between Earth and the Sun, thereby totally or partly obscuring the image of the Sun for a viewer on Earth. An annular solar eclipse occurs when the Moon's apparent diameter is smaller than the Sun's, blocking most of the Sun's light and causing the Sun to look like an annulus (ring). An annular eclipse appears as a partial eclipse over a region of the Earth thousands of kilometres wide.
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An annular solar eclipse occurred on August 1, 1943. A solar eclipse occurs when the Moon passes between Earth and the Sun, thereby totally or partly obscuring the image of the Sun for a viewer on Earth. An annular solar eclipse occurs when the Moon's apparent diameter is smaller than the Sun's, blocking most of the Sun's light and causing the Sun to look like an annulus (ring). An annular eclipse appears as a partial eclipse over a region of the Earth thousands of kilometres wide.
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An annular solar eclipse occurred on July 20, 1944. A solar eclipse occurs when the Moon passes between Earth and the Sun, thereby totally or partly obscuring the image of the Sun for a viewer on Earth. An annular solar eclipse occurs when the Moon's apparent diameter is smaller than the Sun's, blocking most of the Sun's light and causing the Sun to look like an annulus (ring). An annular eclipse appears as a partial eclipse over a region of the Earth thousands of kilometres wide.
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An annular solar eclipse occurred on June 28, 1889. A solar eclipse occurs when the Moon passes between Earth and the Sun, thereby totally or partly obscuring the image of the Sun for a viewer on Earth. An annular solar eclipse occurs when the Moon's apparent diameter is smaller than the Sun's, blocking most of the Sun's light and causing the Sun to look like an annulus (ring). An annular eclipse appears as a partial eclipse over a region of the Earth thousands of kilometres wide.
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Epicyclic gearing or planetary gearing is a gear system consisting of one or more outer, or planet, gears or pinions, revolving about a central sun gear or sun wheel. Typically, the planet gears are mounted on a movable arm or carrier, which itself may rotate relative to the sun gear. Epicyclic gearing systems also incorporate the use of an outer ring gear or annulus, which meshes with the planet gears. Planetary gears (or epicyclic gears) are typically classified as simple or compound planetary gears.
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An annular solar eclipse occurred on May 9, 1948. A solar eclipse occurs when the Moon passes between Earth and the Sun, thereby totally or partly obscuring the image of the Sun for a viewer on Earth. An annular solar eclipse occurs when the Moon's apparent diameter is smaller than the Sun's, blocking most of the Sun's light and causing the Sun to look like an annulus (ring). An annular eclipse appears as a partial eclipse over a region of the Earth thousands of kilometres wide.
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An annular solar eclipse occurred on April 19, 1939. A solar eclipse occurs when the Moon passes between Earth and the Sun, thereby totally or partly obscuring the image of the Sun for a viewer on Earth. An annular solar eclipse occurs when the Moon's apparent diameter is smaller than the Sun's, blocking most of the Sun's light and causing the Sun to look like an annulus (ring). An annular eclipse appears as a partial eclipse over a region of the Earth thousands of kilometres wide.
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An annular solar eclipse occurred on April 7, 1940. A solar eclipse occurs when the Moon passes between Earth and the Sun, thereby totally or partly obscuring the image of the Sun for a viewer on Earth. An annular solar eclipse occurs when the Moon's apparent diameter is smaller than the Sun's, blocking most of the Sun's light and causing the Sun to look like an annulus (ring). An annular eclipse appears as a partial eclipse over a region of the Earth thousands of kilometres wide.
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An annular solar eclipse occurred on March 27, 1941. A solar eclipse occurs when the Moon passes between Earth and the Sun, thereby totally or partly obscuring the image of the Sun for a viewer on Earth. An annular solar eclipse occurs when the Moon's apparent diameter is smaller than the Sun's, blocking most of the Sun's light and causing the Sun to look like an annulus (ring). An annular eclipse appears as a partial eclipse over a region of the Earth thousands of kilometres wide.
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An annular solar eclipse occurred on March 7, 1932. A solar eclipse occurs when the Moon passes between Earth and the Sun, thereby totally or partly obscuring the image of the Sun for a viewer on Earth. An annular solar eclipse occurs when the Moon's apparent diameter is smaller than the Sun's, blocking most of the Sun's light and causing the Sun to look like an annulus (ring). An annular eclipse appears as a partial eclipse over a region of the Earth thousands of kilometres wide.
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An annular solar eclipse occurred on March 28, 1922. A solar eclipse occurs when the Moon passes between Earth and the Sun, thereby totally or partly obscuring the image of the Sun for a viewer on Earth. An annular solar eclipse occurs when the Moon's apparent diameter is smaller than the Sun's, blocking most of the Sun's light and causing the Sun to look like an annulus (ring). An annular eclipse appears as a partial eclipse over a region of the Earth thousands of kilometres wide.
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An annular solar eclipse occurred on March 17, 1923. A solar eclipse occurs when the Moon passes between Earth and the Sun, thereby totally or partly obscuring the image of the Sun for a viewer on Earth. An annular solar eclipse occurs when the Moon's apparent diameter is smaller than the Sun's, blocking most of the Sun's light and causing the Sun to look like an annulus (ring). An annular eclipse appears as a partial eclipse over a region of the Earth thousands of kilometres wide.
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An annular solar eclipse occurred on April 8, 1921. A solar eclipse occurs when the Moon passes between Earth and the Sun, thereby totally or partly obscuring the image of the Sun for a viewer on Earth. An annular solar eclipse occurs when the Moon's apparent diameter is smaller than the Sun's, blocking most of the Sun's light and causing the Sun to look like an annulus (ring). An annular eclipse appears as a partial eclipse over a region of the Earth thousands of kilometres wide.
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An annular solar eclipse occurred on January 3, 1927. A solar eclipse occurs when the Moon passes between Earth and the Sun, thereby totally or partly obscuring the image of the Sun for a viewer on Earth. An annular solar eclipse occurs when the Moon's apparent diameter is smaller than the Sun's, blocking most of the Sun's light and causing the Sun to look like an annulus (ring). An annular eclipse appears as a partial eclipse over a region of the Earth thousands of kilometres wide.
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An annular solar eclipse occurred on July 20, 1925. A solar eclipse occurs when the Moon passes between Earth and the Sun, thereby totally or partly obscuring the image of the Sun for a viewer on Earth. An annular solar eclipse occurs when the Moon's apparent diameter is smaller than the Sun's, blocking most of the Sun's light and causing the Sun to look like an annulus (ring). An annular eclipse appears as a partial eclipse over a region of the Earth thousands of kilometres wide.
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An annular solar eclipse occurred on July 9, 1926. A solar eclipse occurs when the Moon passes between Earth and the Sun, thereby totally or partly obscuring the image of the Sun for a viewer on Earth. An annular solar eclipse occurs when the Moon's apparent diameter is smaller than the Sun's, blocking most of the Sun's light and causing the Sun to look like an annulus (ring). An annular eclipse appears as a partial eclipse over a region of the Earth thousands of kilometres wide.
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An annular solar eclipse occurred on February 25, 1914. A solar eclipse occurs when the Moon passes between Earth and the Sun, thereby totally or partly obscuring the image of the Sun for a viewer on Earth. An annular solar eclipse occurs when the Moon's apparent diameter is smaller than the Sun's, blocking most of the Sun's light and causing the Sun to look like an annulus (ring). An annular eclipse appears as a partial eclipse over a region of the Earth thousands of kilometres wide.
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An annular solar eclipse occurred on July 30, 1916. A solar eclipse occurs when the Moon passes between Earth and the Sun, thereby totally or partly obscuring the image of the Sun for a viewer on Earth. An annular solar eclipse occurs when the Moon's apparent diameter is smaller than the Sun's, blocking most of the Sun's light and causing the Sun to look like an annulus (ring). An annular eclipse appears as a partial eclipse over a region of the Earth thousands of kilometres wide.
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An annular solar eclipse occurred on December 14, 1917. A solar eclipse occurs when the Moon passes between Earth and the Sun, thereby totally or partly obscuring the image of the Sun for a viewer on Earth. An annular solar eclipse occurs when the Moon's apparent diameter is smaller than the Sun's, blocking most of the Sun's light and causing the Sun to look like an annulus (ring). An annular eclipse appears as a partial eclipse over a region of the Earth thousands of kilometres wide.
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An annular solar eclipse will occur on September 22, 2052. A solar eclipse occurs when the Moon passes between Earth and the Sun, thereby totally or partly obscuring the image of the Sun for a viewer on Earth. An annular solar eclipse occurs when the Moon's apparent diameter is smaller than the Sun's, blocking most of the Sun's light and causing the Sun to look like an annulus (ring). An annular eclipse appears as a partial eclipse over a region of the Earth thousands of kilometres wide.
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An annular solar eclipse will occur on July 12, 2056. A solar eclipse occurs when the Moon passes between Earth and the Sun, thereby totally or partly obscuring the image of the Sun for a viewer on Earth. An annular solar eclipse occurs when the Moon's apparent diameter is smaller than the Sun's, blocking most of the Sun's light and causing the Sun to look like an annulus (ring). An annular eclipse appears as a partial eclipse over a region of the Earth thousands of kilometres wide.
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An annular solar eclipse will occur on July 1, 2057. A solar eclipse occurs when the Moon passes between Earth and the Sun, thereby totally or partly obscuring the image of the Sun for a viewer on Earth. An annular solar eclipse occurs when the Moon's apparent diameter is smaller than the Sun's, blocking most of the Sun's light and causing the Sun to look like an annulus (ring). An annular eclipse appears as a partial eclipse over a region of the Earth thousands of kilometres wide.
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An annular solar eclipse will occur on January 16, 2056. A solar eclipse occurs when the Moon passes between Earth and the Sun, thereby totally or partly obscuring the image of the Sun for a viewer on Earth. An annular solar eclipse occurs when the Moon's apparent diameter is smaller than the Sun's, blocking most of the Sun's light and causing the Sun to look like an annulus (ring). An annular eclipse appears as a partial eclipse over a region of the Earth thousands of kilometres wide.
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An annular solar eclipse will occur on October 13, 2061. A solar eclipse occurs when the Moon passes between Earth and the Sun, thereby totally or partly obscuring the image of the Sun for a viewer on Earth. An annular solar eclipse occurs when the Moon's apparent diameter is smaller than the Sun's, blocking most of the Sun's light and causing the Sun to look like an annulus (ring). An annular eclipse appears as a partial eclipse over a region of the Earth thousands of kilometres wide.
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An annular solar eclipse will occur on November 5, 2059. A solar eclipse occurs when the Moon passes between Earth and the Sun, thereby totally or partly obscuring the image of the Sun for a viewer on Earth. An annular solar eclipse occurs when the Moon's apparent diameter is smaller than the Sun's, blocking most of the Sun's light and causing the Sun to look like an annulus (ring). An annular eclipse appears as a partial eclipse over a region of the Earth thousands of kilometres wide.
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An annular solar eclipse will occur on November 28, 2095. A solar eclipse occurs when the Moon passes between Earth and the Sun, thereby totally or partly obscuring the image of the Sun for a viewer on Earth. An annular solar eclipse occurs when the Moon's apparent diameter is smaller than the Sun's, blocking most of the Sun's light and causing the Sun to look like an annulus (ring). An annular eclipse appears as a partial eclipse over a region of the Earth thousands of kilometres wide.
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An annular solar eclipse occurred on August 10, 1915. A solar eclipse occurs when the Moon passes between Earth and the Sun, thereby totally or partly obscuring the image of the Sun for a viewer on Earth. An annular solar eclipse occurs when the Moon's apparent diameter is smaller than the Sun's, blocking most of the Sun's light and causing the Sun to look like an annulus (ring). An annular eclipse appears as a partial eclipse over a region of the Earth thousands of kilometres wide.
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Vitreorana ritae is a tiny glassfrog that lacks humeral spines in males and has a lobed liver. Adult males measure 17–21 mm from the snout to the vent, while the females are a bit larger at about 19.5-24.5 mm snout-vent length. Its snout tip is neatly rounded. The translucent eardrum is visible but not large, measuring about one-fourth to one-third of the eye's diameter; the tympanic annulus is not hidden except for the dorsal margin which is covered by the supratympanic fold.
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The adult, gravid female holotype had a snout-to-vent length of with a slender body across, and an elongated snouth. The tail was broken but regenerated, longer than the body, with smooth dorsal caudal scales and two strongly keeled scales on the sides of each annulus. The precloacal area was covered with enlarged, elongated scales arranged in a single arch-shaped row, presumably carrying precloacal pores in males. The iris of P. ziaiei is yellow and grey with the pupillary slit outlined in yellow.
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Opposing rams (plungers) in the ram cavity translated horizontally, actuated by threaded ram shafts (piston rods) in the manner of a screw jack. Torque from turning the ram shafts by wrench or hand wheel was converted to linear motion and the rams, coupled to the inner ends of the ram shafts, opened and closed the well bore. Such screw jack type operation provided enough mechanical advantage for rams to overcome downhole pressures and seal the wellbore annulus. Hydraulic rams BOPs were in use by the 1940s.
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In the above examples, the extremal \rho which maximized the ratio L_\rho(\Gamma)^2/A(\rho) and gave the extremal length corresponded to a flat metric. In other words, when the Euclidean Riemannian metric of the corresponding planar domain is scaled by \rho, the resulting metric is flat. In the case of the rectangle, this was just the original metric, but for the annulus, the extremal metric identified is the metric of a cylinder. We now discuss an example where an extremal metric is not flat.
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An annular solar eclipse occurred on October 19, 1865. A solar eclipse occurs when the Moon passes between Earth and the Sun, thereby totally or partly obscuring the image of the Sun for a viewer on Earth. An annular solar eclipse occurs when the Moon's apparent diameter is smaller than the Sun's, blocking most of the Sun's light and causing the Sun to look like an annulus (ring). An annular eclipse appears as a partial eclipse over a region of the Earth thousands of kilometres wide.
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An annular solar eclipse occurred on April 29, 1995. A solar eclipse occurs when the Moon passes between Earth and the Sun, thereby totally or partly obscuring the image of the Sun for a viewer on Earth. An annular solar eclipse occurs when the Moon's apparent diameter is smaller than the Sun's, blocking most of the Sun's light and causing the Sun to look like an annulus (ring). An annular eclipse appears as a partial eclipse over a region of the Earth thousands of kilometres wide.
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This is the volume contained between the inside diameter of the hole and the outside diameter of the pipe. Annular capacity is given by : : Annular capacity (bbl/ft) = (IDhole2 \- ODpipe2) / 1029.4 where : IDhole2 = Inside diameter of the casing or open hole in inches : ODpipe2 = Outside diameter of the pipe in inches Similarly : Annular volume (bbls) = Annular capacity (bbl/ft) × length (ft) and : Feet occupied by volume of mud in annulus = Volume of mud (bbls) / Annular Capacity (bbls/ft).Jerome Jacob Schubert, 1995, pp.2-1, 2.
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An annular solar eclipse occurred on September 5, 1793. A solar eclipse occurs when the Moon passes between the Earth and the Sun, thereby totally or partially obscuring the image of the Sun for a viewer on Earth. An annular solar eclipse occurs when the Moon’s apparent diameter is smaller than the Sun’s, blocking most of the Sun’s light and causing the Sun to look like an annulus (ring). An annular eclipse appears as a partial eclipse over a region of the Earth thousands of kilometers wide.
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An annular solar eclipse will occur on June 10, 2021. A solar eclipse occurs when the Moon passes between Earth and the Sun, thereby totally or partly obscuring the image of the Sun for a viewer on Earth. An annular solar eclipse occurs when the Moon's apparent diameter is smaller than the Sun's, blocking most of the Sun's light and causing the Sun to look like an annulus (ring). An annular eclipse appears as a partial eclipse over a region of the Earth thousands of kilometres wide.
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Echocardiography is a non-invasive method of quantifying cardiac output using ultrasound. Two-dimensional (2D) ultrasound and Doppler measurements are used together to calculate cardiac output. 2D measurement of the diameter (d) of the aortic annulus allows calculation of the flow cross-sectional area (CSA), which is then multiplied by the VTI of the Doppler flow profile across the aortic valve to determine the flow volume per beat (stroke volume, SV). The result is then multiplied by the heart rate (HR) to obtain cardiac output.
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An annular solar eclipse occurred on August 17, 1803. A solar eclipse occurs when the Moon passes between Earth and the Sun, thereby totally or partly obscuring the image of the Sun for a viewer on Earth. An annular solar eclipse occurs when the Moon's apparent diameter is smaller than the Sun's, blocking most of the Sun's light and causing the Sun to look like an annulus (ring). An annular eclipse appears as a partial eclipse over a region of the Earth thousands of kilometres wide.
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An annular solar eclipse occurred on August 28, 1802. A solar eclipse occurs when the Moon passes between Earth and the Sun, thereby totally or partly obscuring the image of the Sun for a viewer on Earth. An annular solar eclipse occurs when the Moon's apparent diameter is smaller than the Sun's, blocking most of the Sun's light and causing the Sun to look like an annulus (ring). An annular eclipse appears as a partial eclipse over a region of the Earth thousands of kilometres wide.
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An annular solar eclipse occurred on May 30, 1984. A solar eclipse occurs when the Moon passes between Earth and the Sun, thereby totally or partly obscuring the image of the Sun for a viewer on Earth. An annular solar eclipse occurs when the Moon's apparent diameter is smaller than the Sun's, blocking most of the Sun's light and causing the Sun to look like an annulus (ring). An annular eclipse appears as a partial eclipse over a region of the Earth thousands of kilometres wide.
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An annular solar eclipse occurred on July 31, 1962. A solar eclipse occurs when the Moon passes between Earth and the Sun, thereby totally or partly obscuring the image of the Sun for a viewer on Earth. An annular solar eclipse occurs when the Moon's apparent diameter is smaller than the Sun's, blocking most of the Sun's light and causing the Sun to look like an annulus (ring). An annular eclipse appears as a partial eclipse over a region of the Earth thousands of kilometres wide.
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An annular solar eclipse occurred on August 21, 1933. A solar eclipse occurs when the Moon passes between Earth and the Sun, thereby totally or partly obscuring the image of the Sun for a viewer on Earth. An annular solar eclipse occurs when the Moon's apparent diameter is smaller than the Sun's, blocking most of the Sun's light and causing the Sun to look like an annulus (ring). An annular eclipse appears as a partial eclipse over a region of the Earth thousands of kilometres wide.
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An annular solar eclipse will occur on May 31, 2049. A solar eclipse occurs when the Moon passes between Earth and the Sun, thereby totally or partly obscuring the image of the Sun for a viewer on Earth. An annular solar eclipse occurs when the Moon's apparent diameter is smaller than the Sun's, blocking most of the Sun's light and causing the Sun to look like an annulus (ring). An annular eclipse appears as a partial eclipse over a region of the Earth thousands of kilometres wide.
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An annular solar eclipse will occur on February 5, 2046. A solar eclipse occurs when the Moon passes between Earth and the Sun, thereby totally or partly obscuring the image of the Sun for a viewer on Earth. An annular solar eclipse occurs when the Moon's apparent diameter is smaller than the Sun's, blocking most of the Sun's light and causing the Sun to look like an annulus (ring). An annular eclipse appears as a partial eclipse over a region of the Earth thousands of kilometres wide.
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An annular solar eclipse occurred on December 24, 1973. A solar eclipse occurs when the Moon passes between Earth and the Sun, thereby totally or partly obscuring the image of the Sun for a viewer on Earth. An annular solar eclipse occurs when the Moon's apparent diameter is smaller than the Sun's, blocking most of the Sun's light and causing the Sun to look like an annulus (ring). An annular eclipse appears as a partial eclipse over a region of the Earth thousands of kilometres wide.
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An annular solar eclipse occurred on December 14, 1955. A solar eclipse occurs when the Moon passes between Earth and the Sun, thereby totally or partly obscuring the image of the Sun for a viewer on Earth. An annular solar eclipse occurs when the Moon's apparent diameter is smaller than the Sun's, blocking most of the Sun's light and causing the Sun to look like an annulus (ring). An annular eclipse appears as a partial eclipse over a region of the Earth thousands of kilometres wide.
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An annular solar eclipse occurred on January 22, 1879. A solar eclipse occurs when the Moon passes between Earth and the Sun, thereby totally or partly obscuring the image of the Sun for a viewer on Earth. An annular solar eclipse occurs when the Moon's apparent diameter is smaller than the Sun's, blocking most of the Sun's light and causing the Sun to look like an annulus (ring). An annular eclipse appears as a partial eclipse over a region of the Earth thousands of kilometers wide.
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An annular solar eclipse will occur on October 2, 2024. A solar eclipse occurs when the Moon passes between Earth and the Sun, thereby totally or partly obscuring the image of the Sun for a viewer on Earth. An annular solar eclipse occurs when the Moon's apparent diameter is smaller than the Sun's, blocking most of the Sun's light and causing the Sun to look like an annulus (ring). An annular eclipse appears as a partial eclipse over a region of the Earth thousands of kilometres wide.
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An annular solar eclipse will occur on February 17, 2026. A solar eclipse occurs when the Moon passes between Earth and the Sun, thereby totally or partly obscuring the image of the Sun for a viewer on Earth. An annular solar eclipse occurs when the Moon's apparent diameter is smaller than the Sun's, blocking most of the Sun's light and causing the Sun to look like an annulus (ring). An annular eclipse appears as a partial eclipse over a region of the Earth thousands of kilometres wide.
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An annular solar eclipse will occur on February 6, 2027. A solar eclipse occurs when the Moon passes between Earth and the Sun, thereby totally or partly obscuring the image of the Sun for a viewer on Earth. An annular solar eclipse occurs when the Moon's apparent diameter is smaller than the Sun's, blocking most of the Sun's light and causing the Sun to look like an annulus (ring). An annular eclipse appears as a partial eclipse over a region of the Earth thousands of kilometres wide.
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An annular solar eclipse will occur on January 26, 2028. A solar eclipse occurs when the Moon passes between Earth and the Sun, thereby totally or partly obscuring the image of the Sun for a viewer on Earth. An annular solar eclipse occurs when the Moon's apparent diameter is smaller than the Sun's, blocking most of the Sun's light and causing the Sun to look like an annulus (ring). An annular eclipse appears as a partial eclipse over a region of the Earth thousands of kilometres wide.
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An annular solar eclipse will occur on May 21, 2031. A solar eclipse occurs when the Moon passes between Earth and the Sun, thereby totally or partly obscuring the image of the Sun for a viewer on Earth. An annular solar eclipse occurs when the Moon's apparent diameter is smaller than the Sun's, blocking most of the Sun's light and causing the Sun to look like an annulus (ring). An annular eclipse appears as a partial eclipse over a region of the Earth thousands of kilometres wide.
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An annular solar eclipse will occur on May 9, 2032. A solar eclipse occurs when the Moon passes between Earth and the Sun, thereby totally or partly obscuring the image of the Sun for a viewer on Earth. An annular solar eclipse occurs when the Moon's apparent diameter is smaller than the Sun's, blocking most of the Sun's light and causing the Sun to look like an annulus (ring). An annular eclipse appears as a partial eclipse over a region of the Earth thousands of kilometres wide.
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An annular solar eclipse will occur on March 9, 2035. A solar eclipse occurs when the Moon passes between Earth and the Sun, thereby totally or partly obscuring the image of the Sun for a viewer on Earth. An annular solar eclipse occurs when the Moon's apparent diameter is smaller than the Sun's, blocking most of the Sun's light and causing the Sun to look like an annulus (ring). An annular eclipse appears as a partial eclipse over a region of the Earth thousands of kilometres wide.
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An annular solar eclipse will occur on September 12, 2034. A solar eclipse occurs when the Moon passes between Earth and the Sun, thereby totally or partly obscuring the image of the Sun for a viewer on Earth. An annular solar eclipse occurs when the Moon's apparent diameter is smaller than the Sun's, blocking most of the Sun's light and causing the Sun to look like an annulus (ring). An annular eclipse appears as a partial eclipse over a region of the Earth thousands of kilometres wide.
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An annular solar eclipse occurred on January 4–5, 1992. A solar eclipse occurs when the Moon passes between Earth and the Sun, thereby totally or partly obscuring the image of the Sun for a viewer on Earth. An annular solar eclipse occurs when the Moon's apparent diameter is smaller than the Sun's, blocking most of the Sun's light and causing the Sun to look like an annulus (ring). An annular eclipse appears as a partial eclipse over a region of the Earth thousands of kilometres wide.
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An annular solar eclipse occurred on January 15–16, 1991. A solar eclipse occurs when the Moon passes between Earth and the Sun, thereby totally or partly obscuring the image of the Sun for a viewer on Earth. An annular solar eclipse occurs when the Moon's apparent diameter is smaller than the Sun's, blocking most of the Sun's light and causing the Sun to look like an annulus (ring). An annular eclipse appears as a partial eclipse over a region of the Earth thousands of kilometres wide.
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An annular solar eclipse occurred on January 26, 1990. A solar eclipse occurs when the Moon passes between Earth and the Sun, thereby totally or partly obscuring the image of the Sun for a viewer on Earth. An annular solar eclipse occurs when the Moon's apparent diameter is smaller than the Sun's, blocking most of the Sun's light and causing the Sun to look like an annulus (ring). An annular eclipse appears as a partial eclipse over a region of the Earth thousands of kilometres wide.
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An annular solar eclipse will occur on June 21, 2039. A solar eclipse occurs when the Moon passes between Earth and the Sun, thereby totally or partly obscuring the image of the Sun for a viewer on Earth. An annular solar eclipse occurs when the Moon's apparent diameter is smaller than the Sun's, blocking most of the Sun's light and causing the Sun to look like an annulus (ring). An annular eclipse appears as a partial eclipse over a region of the Earth thousands of kilometres wide.
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An annular solar eclipse will occur on July 2, 2038. A solar eclipse occurs when the Moon passes between Earth and the Sun, thereby totally or partly obscuring the image of the Sun for a viewer on Earth. An annular solar eclipse occurs when the Moon's apparent diameter is smaller than the Sun's, blocking most of the Sun's light and causing the Sun to look like an annulus (ring). An annular eclipse appears as a partial eclipse over a region of the Earth thousands of kilometres wide.
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An annular solar eclipse occurred on May 20, 1966. A solar eclipse occurs when the Moon passes between Earth and the Sun, thereby totally or partly obscuring the image of the Sun for a viewer on Earth. An annular solar eclipse occurs when the Moon's apparent diameter is smaller than the Sun's, blocking most of the Sun's light and causing the Sun to look like an annulus (ring). An annular eclipse appears as a partial eclipse over a region of the Earth thousands of kilometres wide.
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Since it preserves tangencies, angles and circles, inversion transforms one Steiner chain into another of the same number of circles. One particular choice of inversion transforms the given circles α and β into concentric circles; in this case, all the circles of the Steiner chain have the same size and can "roll" around in the annulus between the circles similar to ball bearings. This standard configuration allows several properties of Steiner chains to be derived, e.g., its points of tangencies always lie on a circle.
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El Observador’s made his first appearance in the ongoing "Legacy" storyline from El Gato Negro: Nocturnal Warrior (#1-4). The villain El Graduado is enlisting rival mob bosses and street gangs to join the Ochoa crime family in his attempt to become the main narcotics supplier of South Texas. Those who refuse to join are slaughtered by El Observador, who is currently on loan from The Annulus. The sightless assassin’s first encounter with El Gato Negro was shortly after he killed an entire street gang.
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An annular solar eclipse occurred on December 14, 2001. A solar eclipse occurs when the Moon passes between Earth and the Sun, thereby totally or partly obscuring the image of the Sun for a viewer on Earth. An annular solar eclipse occurs when the Moon's apparent diameter is smaller than the Sun's, blocking most of the Sun's light and causing the Sun to look like an annulus (ring). An annular eclipse appears as a partial eclipse over a region of the Earth thousands of kilometres wide.
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An annular solar eclipse occurred on June 10, 2002. A solar eclipse occurs when the Moon passes between Earth and the Sun, thereby totally or partly obscuring the image of the Sun for a viewer on Earth. An annular solar eclipse occurs when the Moon's apparent diameter is smaller than the Sun's, blocking most of the Sun's light and causing the Sun to look like an annulus (ring). An annular eclipse appears as a partial eclipse over a region of the Earth thousands of kilometres wide.
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An annular solar eclipse occurred on September 22, 2006. A solar eclipse occurs when the Moon passes between Earth and the Sun, thereby totally or partly obscuring the image of the Sun for a viewer on Earth. An annular solar eclipse occurs when the Moon's apparent diameter is smaller than the Sun's, blocking most of the Sun's light and causing the Sun to look like an annulus (ring). An annular eclipse appears as a partial eclipse over a region of the Earth thousands of kilometres wide.
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An annular solar eclipse occurred on February 16, 1999. A solar eclipse occurs when the Moon passes between Earth and the Sun, thereby totally or partly obscuring the image of the Sun for a viewer on Earth. An annular solar eclipse occurs when the Moon's apparent diameter is smaller than the Sun's, blocking most of the Sun's light and causing the Sun to look like an annulus (ring). An annular eclipse appears as a partial eclipse over a region of the Earth thousands of kilometres wide.
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An annular solar eclipse occurred on September 1, 2016. A solar eclipse occurs when the Moon passes between Earth and the Sun, thereby totally or partly obscuring the image of the Sun for a viewer on Earth. An annular solar eclipse occurs when the Moon's apparent diameter is smaller than the Sun's, blocking most of the Sun's light and causing the Sun to look like an annulus (ring). An annular eclipse appears as a partial eclipse over a region of the Earth thousands of kilometres wide.
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An annular solar eclipse took place on February 26, 2017. A solar eclipse occurs when the Moon passes between Earth and the Sun, thereby totally or partly obscuring the image of the Sun for a viewer on Earth. An annular solar eclipse occurs when the Moon's apparent diameter is smaller than the Sun's, blocking most of the Sun's light and causing the Sun to look like an annulus (ring). An annular eclipse appears as a partial eclipse over a region of the Earth thousands of kilometres wide.
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The forewings are black-brown with a cupreous gloss. There is a curved slightly sinuous white antemedial line and two white points on the middle of the costa and three small annuli on the postmedial part of the costa. There is also a black discoidal bar defined on the outer side by white, as well as a white, sinuous subterminal line arising from the third annulus with two minute white points beyond it on the costa. The hindwings are white, suffused with fuscous except on the inner area.
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An annular solar eclipse occurred at the Moon’s ascending node of the orbit on Monday, January 26, 2009. A solar eclipse occurs when the Moon passes between Earth and the Sun, thereby totally or partly obscuring the image of the Sun for a viewer on Earth. An annular solar eclipse occurs when the Moon's apparent diameter is smaller than the Sun's, blocking most of the Sun's light and causing the Sun to look like an annulus (ring). An annular eclipse appears as a partial eclipse over a region of the Earth thousands of kilometres wide.
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The forewings are white, almost wholly suffused with yellowish, the white ground colour restricted to the costa and the course of the subterminal line. The first line is vertically sinuous at one third, blackish, rising beyond a large blackish costal spot. There is a blackish costal annulus close to the base, and a black spot near the middle of the basal area. The second line runs rather obliquely outward and is bluntly angulated in the mid- wing, and attains the inner margin at two thirds, where it is thickened.
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The feedwater subcools the saturated water from the moisture separators. This water now flows down the downcomer or annulus region, which is separated from the core by a tall shroud. The water then goes through either jet pumps or internal recirculation pumps that provide additional pumping power (hydraulic head). The water now makes a 180-degree turn and moves up through the lower core plate into the nuclear core, where the fuel elements heat the water. Water exiting the fuel channels at the top guide is saturated with a steam quality of about 15%.
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Ansorge, U., Becker, S. I., & Breitmeyer, B.: Revisiting the metacontrast dissociation: Comparing sensitivity across different measures and tasks. In: Quarterly Journal of Experimental Psychology, Nr. 62, 2009, p. 286-309. A phenomenon named metacontrast masking can be produced when the prime is followed by a mask enclosing the prime's shape such that both stimuli share adjacent contours. For instance, a prime can be masked by a larger annulus whose inner contours exactly fit the prime's shape. In many response priming experiments, the target serves the additional purpose of masking the prime (Fig. 1).
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An annular solar eclipse will occur on June 11, 2048 with a magnitude of 0.9441. A solar eclipse occurs when the Moon passes between Earth and the Sun, thereby totally or partly obscuring the image of the Sun for a viewer on Earth. An annular solar eclipse occurs when the Moon's apparent diameter is smaller than the Sun's, blocking most of the Sun's light and causing the Sun to look like an annulus (ring). An annular eclipse appears as a partial eclipse over a region of the Earth thousands of kilometres wide.
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Thus when defining formal Laurent series, one requires Laurent series with only finitely many negative terms. Similarly, the sum of two convergent Laurent series need not converge, though it is always defined formally, but the sum of two bounded below Laurent series (or any Laurent series on a punctured disk) has a non- empty annulus of convergence. Also, for a field F, by the sum and multiplication defined above, formal Laurent series would form a field F((x)) which is also the field of fractions of the ring Fx of formal power series.
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A total solar eclipse will occur on November 25, 2049. It is a hybrid event, with only a fraction of its path as total, and longer sections at the start and end as an annular eclipse. A solar eclipse occurs when the Moon passes between Earth and the Sun, thereby totally or partly obscuring the image of the Sun for a viewer on Earth. An annular solar eclipse occurs when the Moon's apparent diameter is smaller than the Sun's, blocking most of the Sun's light and causing the Sun to look like an annulus (ring).
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An annular solar eclipse occurred on December 25, 1954, also known as "The christmas 1954 solar eclipse". A solar eclipse occurs when the Moon passes between Earth and the Sun, thereby totally or partly obscuring the image of the Sun for a viewer on Earth. An annular solar eclipse occurs when the Moon's apparent diameter is smaller than the Sun's, blocking most of the Sun's light and causing the Sun to look like an annulus (ring). An annular eclipse appears as a partial eclipse over a region of the Earth thousands of kilometres wide.
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An annular solar eclipse occurred on March 7, 1951 with a magnitude of 0.9896. A solar eclipse occurs when the Moon passes between Earth and the Sun, thereby totally or partly obscuring the image of the Sun for a viewer on Earth. An annular solar eclipse occurs when the Moon's apparent diameter is smaller than the Sun's, blocking most of the Sun's light and causing the Sun to look like an annulus (ring). An annular eclipse appears as a partial eclipse over a region of the Earth thousands of kilometres wide.
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An annular solar eclipse occurred on Monday, August 31–Tuesday, September 1, 1970. A solar eclipse occurs when the Moon passes between Earth and the Sun, thereby totally or partly obscuring the image of the Sun for a viewer on Earth. An annular solar eclipse occurs when the Moon's apparent diameter is smaller than the Sun's, blocking most of the Sun's light and causing the Sun to look like an annulus (ring). An annular eclipse appears as a partial eclipse over a region of the Earth thousands of kilometres wide.
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An annular solar eclipse occurred at the Moon's descending node of the orbit on February 4–5, 1981. A solar eclipse occurs when the Moon passes between Earth and the Sun, thereby totally or partly obscuring the image of the Sun for a viewer on Earth. An annular solar eclipse occurs when the Moon's apparent diameter is smaller than the Sun's, blocking most of the Sun's light and causing the Sun to look like an annulus (ring). An annular eclipse appears as a partial eclipse over a region of the Earth thousands of kilometres wide.
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An annular solar eclipse occurred on August 10, 1980 centred over the Pacific Ocean. A solar eclipse occurs when the Moon passes between Earth and the Sun, thereby totally or partly obscuring the image of the Sun for a viewer on Earth. An annular solar eclipse occurs when the Moon's apparent diameter is smaller than the Sun's, blocking most of the Sun's light and causing the Sun to look like an annulus (ring). An annular eclipse appears as a partial eclipse over a region of the Earth thousands of kilometres wide.
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An annular solar eclipse occurred on January 4, 1973 with an eclipse magnitude of 0.9303. A solar eclipse occurs when the Moon passes between Earth and the Sun, thereby totally or partly obscuring the image of the Sun for a viewer on Earth. An annular solar eclipse occurs when the Moon's apparent diameter is smaller than the Sun's, blocking most of the Sun's light and causing the Sun to look like an annulus (ring). An annular eclipse appears as a partial eclipse over a region of the Earth thousands of kilometres wide.
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For the circumradius-to-inradius ratio for various n, see Bicentric polygon#Regular polygons. The same can be said of a regular polyhedron's insphere, midsphere and circumsphere. The region of the plane between two concentric circles is an annulus, and analogously the region of space between two concentric spheres is a spherical shell.. For a given point c in the plane, the set of all circles having c as their center forms a pencil of circles. Each two circles in the pencil are concentric, and have different radii.
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An annular solar eclipse occurred on November 11, 1863, during spring. A solar eclipse occurs when the Moon passes between Earth and the Sun, thereby totally or partly obscuring the image of the Sun for a viewer on Earth. An annular solar eclipse occurs when the Moon's apparent diameter is smaller than the Sun's, blocking most of the Sun's light and causing the Sun to look like an annulus (ring). An annular eclipse appears as a partial eclipse over a region of the Earth thousands of kilometres wide.
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An annular solar eclipse occurred on November 21, 1881 during spring. A solar eclipse occurs when the Moon passes between Earth and the Sun, thereby totally or partly obscuring the image of the Sun for a viewer on Earth. An annular solar eclipse occurs when the Moon's apparent diameter is smaller than the Sun's, blocking most of the Sun's light and causing the Sun to look like an annulus (ring). An annular eclipse appears as a partial eclipse over a region of the Earth thousands of kilometres wide.
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An annular solar eclipse occurred on December 3, 1899, during late spring. A solar eclipse occurs when the Moon passes between Earth and the Sun, thereby totally or partly obscuring the image of the Sun for a viewer on Earth. An annular solar eclipse occurs when the Moon's apparent diameter is smaller than the Sun's, blocking most of the Sun's light and causing the Sun to look like an annulus (ring). An annular eclipse appears as a partial eclipse over a region of the Earth thousands of kilometres wide.
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Such distinguishing characters include: # the texture of the stipe (fibrous, brittle, chalky, leathery, firm, etc.) # whether it has remains of a partial veil (such as an annulus or cortina) or universal veil (volva) # whether the stipes of many mushrooms fuse at their base # its general size and shape # whether the stipe extends underground in a root-like structure (a rhizome) When collecting mushrooms for identification it is critical to maintain all these characters intact by digging the mushroom out of the soil, rather than cutting it off mid-stipe.
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An annular solar eclipse occurred on August 10, 1934 with an eclipse magnitude of 0.9436. A solar eclipse occurs when the Moon passes between Earth and the Sun, thereby totally or partly obscuring the image of the Sun for a viewer on Earth. An annular solar eclipse occurs when the Moon's apparent diameter is smaller than the Sun's, blocking most of the Sun's light and causing the Sun to look like an annulus (ring). An annular eclipse appears as a partial eclipse over a region of the Earth thousands of kilometres wide.
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In the United States, gas lift is used in 10% of the oil wells that have insufficient reservoir pressure to produce the well. In the petroleum industry, the process involves injecting gas through the tubing-casing annulus. Injected gas aerates the fluid to reduce its density; the formation pressure is then able to lift the oil column and forces the fluid out of the wellbore. Gas may be injected continuously or intermittently, depending on the producing characteristics of the well and the arrangement of the gas-lift equipment.
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An annular solar eclipse occurred on March 17, 1904, also known as the "1904 St. Patrick's Day eclipse". A solar eclipse occurs when the Moon passes between Earth and the Sun, thereby totally or partly obscuring the image of the Sun for a viewer on Earth. An annular solar eclipse occurs when the Moon's apparent diameter is smaller than the Sun's, blocking most of the Sun's light and causing the Sun to look like an annulus (ring). An annular eclipse appears as a partial eclipse over a region of the Earth thousands of kilometres wide.
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An annular solar eclipse occurred on February 14, 1915, also known as “The 1915 Valentine’s Day eclipse”. A solar eclipse occurs when the Moon passes between Earth and the Sun, thereby totally or partly obscuring the image of the Sun for a viewer on Earth. An annular solar eclipse occurs when the Moon's apparent diameter is smaller than the Sun's, blocking most of the Sun's light and causing the Sun to look like an annulus (ring). An annular eclipse appears as a partial eclipse over a region of the Earth thousands of kilometres wide.
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An annular solar eclipse will take place on 20 March 2053 with a magnitude of 0.9919. A solar eclipse occurs when the Moon passes between Earth and the Sun, thereby totally or partly obscuring the image of the Sun for a viewer on Earth. An annular solar eclipse occurs when the Moon's apparent diameter is smaller than the Sun's, blocking most of the Sun's light and causing the Sun to look like an annulus (ring). An annular eclipse appears as a partial eclipse over a region of the Earth thousands of kilometres wide.
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An annular solar eclipse will occur on November 15, 2077 with a magnitude of 0.9371. A solar eclipse occurs when the Moon passes between Earth and the Sun, thereby totally or partially obscuring the image of the Sun for a viewer on Earth. An annular solar eclipse occurs when the Moon's apparent diameter is smaller than the Sun's, blocking most of the Sun's light and causing the Sun to look like an annulus (ring). An annular eclipse appears as a partial eclipse over a region of the Earth thousands of kilometres wide.
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The dominant feature in the Shakespeare quadrangle is the Caloris Basin, 1,300 km in diameter. This impact basin is the largest and best preserved on the hemisphere of Mercury observed by Mariner 10. Almost the entire eastern half of the basin is in the Raditladi quadrangle; the west half was in the nightside hemisphere of Mercury during all the Mariner 10 passes, and part of the southern half lies in the adjacent Tolstoj quadrangle (Schaber and McCauley, 1980). Surrounding Caloris is a discontinuous annulus of its ejecta deposits, called the Caloris Group.
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When production is desired from an upper zone while blanking off the lower zone, a sliding sleeve with a nipple profile above and a polished sub below is installed in the tubing string opposite the upper zone. Packers are used to isolate the zones. The sliding sleeve can be shifted to the open position and the separation tool can be run and locked into the bore of the sliding sleeve by standard slickline methods. The separation tool allows flow to enter from the annulus and produce up the tubing.
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The sporangium capsule is very tiny 0.6-1 mm long that is erect or sometimes lightly curved, resembling a shape of an ellipsoid. The immature capsule of F.limbatus is green, and the operculum is fully and prominently enlarged above the annulus. The tip of the operculum is somewhat clear-green in colour. The capsule turns dark green to brown when maturing, except for the apophysis, keeps it light green colour and the operculum that turns red as each sporocyte has experienced meiosis and has produced four spores at this time.
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The bright interior of the basin is noticeably redder than the surrounding plains, which are made of a bluer low reflectance material (LRM). The dark annulus of ejecta around Tolstoj is one of the darkest places on the surface of Mercury. The depth of Tolstoj is estimated to be from the stereo derived digital elevation models based on Mariner 10 images of the planet. This is significantly less than the depth of lunar basins of the similar size indicating that Tolstoj probably has relaxed from its post impact shape.
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Despite suffering from near inter-cranial injury, he managed to drag himself home, where he collapsed in the arms of his grandfather. In the ongoing "Legacy" storyline from "El Gato Negro: Nocturnal Warrior" #1-4, El Graduado has been released from police custody and is enlisting rival mob bosses and street gangs to join his crime family in order to become the main drug supplier for the Annulus. Those who disagree are slaughtered by the blind mercenary and assassin El Observador, who is currently under the payroll of the Ochoa crime family.
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The aortic root is the portion of the aorta beginning at the aortic annulus and extending to the sinotubular junction. It is sometimes regarded as a part of the ascending aorta, and sometimes regarded as a separate entity from the rest of the ascending aorta. Between each commissure of the aortic valve and opposite the cusps of the aortic valve, three small dilatations called the aortic sinuses. The sinotubular junction is the point in the ascending aorta where the aortic sinuses end and the aorta becomes a tubular structure.
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Operative view of the mitral valve with a chordal rupture "fail" of the anterior leaflet The mitral valve is typically in area and sits in the left heart between the left atrium and the left ventricle. It has two leaflets (or "cusps"), an anteromedial leaflet and a posterolateral leaflet. The opening of the mitral valve is surrounded by a fibrous ring known as the mitral annulus. The anterior cusp covers approximately two-thirds of the valve (imagine a crescent moon within the circle, where the crescent represents the posterior cusp).
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Rams, or ram blocks, are of four common types: pipe, blind, shear, and blind shear. Pipe rams close around a drill pipe, restricting flow in the annulus (ring-shaped space between concentric objects) between the outside of the drill pipe and the wellbore, but do not obstruct flow within the drill pipe. Variable-bore pipe rams can accommodate tubing in a wider range of outside diameters than standard pipe rams, but typically with some loss of pressure capacity and longevity. Pipe ram should not be closed if there is no pipe in the hole.
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There is a point at the base of the costa of the forewings, as well as a subbasal oblique line on the costa and a point beyond in the cell and a point below it. The antemedial line runs from the cell to the inner margin and there is a large annulus in the cell and on the discocellular. There is a medial lunule below the cell and various streaks on the veins. The hindwings have antemedial and medial wavy lines and a line between them in the cell.
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Fish have been repeatedly studied as well to understand if they perceive the Delboeuf illusion. Fish trained to select larger center circles for reward, responded to the illusion differently depending on the species of fish. A 2008 study of damselfish illustrated that damselfish responded to variations of the Delboeuf illusion in a similar ways to humans and dolphins, while guppies responded in reverse, selecting the circles with the larger annulus. bamboo sharks did not generally make selections significantly higher than chance during the testing, and only showed preference to larger diagrams in general.
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For Köhler illumination the light source and condenser diaphragm should appear in focus at the back focal plane of the objective lens. For phase contrast microscopy the phase ring (at the back focal plane of the objective) and the annulus (at the back focal plane of the condenser lens) should appear in focus and in alignment. Bertrand lenses find use in creating interference figures and assisting in aligning a microscope to generate interference figures. The name Bertrand lens commemorates French mineralogist Emile Bertrand (1844-1909), for whom the mineral Bertrandite is also named.
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West Riding fingerpost with the parish name and grid reference on the roundel. Whilst some elements of fingerpost design were prescribed during the period when their introduction became most widespread, there was plenty of scope for distinctive spread of designs which remains to today. The inclusion of the highway authority name took the form of raised or recessed lettering written down the poles or as part of a finial or roundel (when the centre is hollow, called an annulus) design, either in full or as initials (e.g. K.C.C. for Kesteven County Council).
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A annular solar eclipse occurred on January 11, 1842 during summer. A solar eclipse occurs when the Moon passes between Earth and the Sun, thereby totally or partly obscuring the image of the Sun for a viewer on Earth. An annular solar eclipse occurs when the Moon's apparent diameter is smaller than the Sun's, blocking most of the Sun's light and causing the Sun to look like an annulus (ring). An annular eclipse appears as a partial eclipse over a region of the Earth thousands of kilometres wide.
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It is increasingly recognized that back pain resulting from disc herniation is not always due solely to compression of the spinal cord or nerve roots, but may also be caused by chemical inflammation. There is evidence that points to a specific inflammatory mediator in back pain: an inflammatory molecule, called tumor necrosis factor alpha (TNF), is released not only by a herniated disc, but also in cases of disc tear (annulus tear) by facet joints, and in spinal stenosis. In addition to causing pain and inflammation, TNF may contribute to disc degeneration.
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An annular solar eclipse occurred at the Moon’s ascending node of the orbit on May 31, 2003. A solar eclipse occurs when the Moon passes between Earth and the Sun, thereby totally or partly obscuring the image of the Sun for a viewer on Earth. An annular solar eclipse occurs when the Moon's apparent diameter is smaller than the Sun's, blocking most of the Sun's light and causing the Sun to look like an annulus (ring). An annular eclipse appears as a partial eclipse over a region of the Earth thousands of kilometres wide.
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Aortic insufficiency (AI) occurs in half to two-thirds of ascending AD, and the diastolic heart murmur of aortic insufficiency is audible in about 32% of proximal dissections. The intensity (loudness) of the murmur depends on the blood pressure and may be inaudible in the event of low blood pressure. Multiple causes exist for AI in the setting of ascending AD. The dissection may dilate the annulus of the aortic valve, preventing the leaflets of the valve from coapting. The dissection may extend into the aortic root and detach the aortic valve leaflets.
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The forewings are ochreous largely suffused with red-brown and fuscous, and with scattered patches of silvery-blue scales. The base and the costal area to the antemedial line are blackish and the antemedial line is ochreous, defined on each side by blackish and with silvery-blue scales on its outer edges. There are two minute semicircular marks defined by black on the medial part of the costa and there is a diffused blackish discoidal annulus. The postmedial line is ochreous defined on each side by blackish and with silvery-blue scales on its inner edge.
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The forewings are ochreous, irrorated with a few blackish scales and with an indistinct sinuous dark antemedial line. There is a faint brown annulus in the middle of the cell and a prominent black discoidal lunule with a slight brown striga in the centre. There is a black point above it on the costa. The postmedial line has a black spot at the costa and there is a series of black points on it, incurved and with small black spot at the discal fold, below vein 4 bent inwards to below the end of the cell, then again excurved.
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Steam exiting the turbine flows into condensers located underneath the low- pressure turbines, where the steam is cooled and returned to the liquid state (condensate). The condensate is then pumped through feedwater heaters that raise its temperature using extraction steam from various turbine stages. Feedwater from the feedwater heaters enters the reactor pressure vessel (RPV) through nozzles high on the vessel, well above the top of the nuclear fuel assemblies (these nuclear fuel assemblies constitute the "core") but below the water level. The feedwater enters into the downcomer or annulus region and combines with water exiting the moisture separators.
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Polypodiales are unique in bearing sporangia with a vertical annulus interrupted by the stalk and stomium. These sporangial characters were used by Johann Jakob Bernhardi to define a group of ferns he called the "Cathetogyratae"; the Pteridophyte Phylogeny Group has suggested reviving this name as the informal term cathetogyrates, to replace the ambiguously circumscribed term "polypods" when referring to the Polypodiales. The sporangia are born on stalks 1–3 cells thick and are often long-stalked. (In contrast, the Hymenophyllales have a stalk composed of four rows of cells.) The sporangia do not reach maturity simultaneously.
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A solar eclipse occurs when the Moon passes between Earth and the Sun, thereby totally or partly obscuring the image of the Sun for a viewer on Earth. The eclipse is either total or annular. In a total eclipse, the moon's size from earth is large enough to block all of the disk of the sun. An annular solar eclipse occurs when the Moon's apparent diameter is smaller than the Sun's, blocking most of the Sun's light and causing the Sun to look like an annulus (ring), that is there is a ring of the sun around the dark moon.
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Uncertainty around age estimates from fin ray annulus may account for any disparity. Spawning periodicity is thought to be 2 to 4 years for females and 1 to 2 years for males. Behavior during spawning is not well known, but it is known that they are communal broadcast spawners, where a female's eggs are fertilized by many males. When ready to spawn, white sturgeon choose a variety of substrates dependent on the river system, spawning on gravel or rocky substrate in moderate to fast currents, with observed depths of , and water velocities at the bottom on a range of 0.6-2.4 m/sec.
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A permanent downhole gauge (PDG) is a pressure and/or temperature gauge permanently installed in an oil or gas well. Typically they are installed in tubing in the well and can measure the tubing pressure or annulus pressure or both. Systems installed in well casing to read formation pressure directly, suspended systems, and systems built in coil (continuous) tubing are also available. The data that PDGs provide are useful to Reservoir Engineers in determining the quantities of oil or gas contained below the Earth's surface in an oil or gas reservoir and also which method of production is best.
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The stem is smooth and fragile, whitish at the bottom and brownish at the top, 2–4 cm long, 1 to 1.5 mm thick, and is equal width for most of the length, often swelling at the base. The stem lacks an annulus (ring) and the base usually stains blue. The cap color lightens when it dries, turning a tan color. Like some other grassland species such as Psilocybe semilanceata, Psilocybe mexicana and Psilocybe tampanensis, Conocybe cyanopus may form sclerotia, a dormant form of the organism, which affords it some protection from wildfires and other natural disasters.
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Underbalanced drilling is usually more expensive than conventional drilling (when drilling a deviated well which requires directional drilling tools), and has safety issues of its own. Technically the well is always in a blowout condition unless a heavier fluid is displaced into the well. Air drilling requires a faster up hole volume as the cuttings will fall faster down the annulus when the compressors are taken off the hole compared to having a higher viscosity fluid in the hole. Because air is compressible mud pulse telemetry measurement while drilling (MWD) tools which require an incompressible fluid can not work.
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An annular solar eclipse took place at the Moon’s descending node of the orbit on May 9–10 (UTC), 2013, with a magnitude of 0.9544. A solar eclipse occurs when the Moon passes between Earth and the Sun, thereby totally or partly obscuring the image of the Sun fogghhvfhvsjvhr a viewer on Earth. An annular solar eclipse occurs whenshit the Moon's apparent diameter is smaller than the Sun's, blocking most of the Sun's light and causing the Sun to look like an annulus (ring). An annular eclipse appears as a partial eclipse over a region of the Earth thousands of kilometres wide.
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The pygidial axis in Acontheus cf. acutangulus (Jago et al., 2011, fig. 7, N-S) is narrower (tr.) than in the Swedish species and terminates slightly short of the posterior border furrow, whereas in both A. acutangulus Angelin, 1851 and A. sp. nov., the axis actually meets the border furrow and separates the pleural fields, as also observed in Clavigellus annulus Geyer (1994, figs. 6-8). In their ‘Revised diagnosis’ of Acontheus, Jago et al. (2011, p.29) stated that pygidial pleural furrows are “wide, deep, extend to border with marked posterior deflection where they cross border furrow. Interpleural furrows effaced”.
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The ambient pressure at which the wake changes from open to closed modes is called the design pressure. If the ambient pressure reduces any further, additional expansion will occur outside the nozzle much like a standard bell nozzle and no altitude compensation effect will be gained. In open wake mode, the exit area is dependent on the ambient pressure and the exhaust gas exits the nozzle as an annulus as it does not fill the entire nozzle. Because the ambient pressure controls the exit area, the area ratio should be perfectly compensating to the altitude up to the design pressure.
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Typically constructed from stainless steel, spacers are inserted to retain concentricity, while the tubes are sealed with O-rings, packing, or welded depending on the operating pressures. While both co and counter configurations are possible, the countercurrent method is more common. The preference is to pass the hot fluid through the inner tube to reduce heat losses, while the annulus is reserved for the high viscosity stream to limit the pressure drop. Beyond double stream heat exchangers, designs involving triple (or more) streams are common; alternating between hot and cool streams, thus heating/cooling the product from both sides.
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The scientific name is derived from the Greek 'στροφος/strophos' meaning "belt", in reference to the annulus present on the stipe. Spore print color is generally medium to dark purple- brown with white edge at maturity, except for a few species that have rusty- brown spores. There is a great deal of variation, however, since this group as presently delimited is polyphyletic. Members of the core clade of Stropharia are characterized by crystalline acanthocytes among the hyphae of the mycelium and that make up the rhizoids at the base of the mushroom, and in one species, Stropharia acanthocystis, also occur in the hymenium.
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Annular lipids (also called shell lipids or boundary lipids) are a set of lipids or lipidic molecules which preferentially bind or stick to the surface of membrane proteins in biological cells. They constitute a layer, or an annulus/ shell, of lipids which are partially immobilized due to the existence of lipid-protein interactions. Polar headgroups of these lipids bind to the hydrophilic part of the membrane protein(s) at the inner and outer surfaces of lipid bilayer membrane. The hydrophobic surface of the membrane proteins is bound to the apposed lipid fatty acid chains of the membrane bilayer.
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Gas reinjection is the reinjection of natural gas into an underground reservoir, typically one already containing both natural gas and crude oil, in order to increase the pressure within the reservoir and thus induce the flow of crude oil or else sequester gas that cannot be exported. This is not to be confused with gas lift, where gas is injected into the annulus of the well rather than the reservoir. After the crude has been pumped out, the natural gas is once again recovered. Since many of the wells found around the world contain heavy crude, this process increases their production.
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SCVF is defined as the flow of gas and/or liquid along the surface casing/casing annulus. GM is defined as a flow of gas that is detectable at the outer surface of the outermost casing string usually occurring at very shallow reservoir layers. According to recent statistics from the Alberta Energy Regulator (AER), a total of 617 billion m3 of methane was released into atmosphere through venting (GM and SCVF) and flaring in Alberta during 2016, which has been constantly decreasing since 2012. Among the total emitted gas, 81 million m3 originated from 9,972 unrepaired wells by GM and SCVF.
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MR and mitral valve prolapse are also common in Ehlers–Danlos syndromes. NIH US National Library of Medicine, A.D.A.M. Medical Encyclopedia, Ehlers Danlos Syndrome- PMH0002439 Secondary mitral insufficiency is due to the dilatation of the left ventricle that causes stretching of the mitral valve annulus and displacement of the papillary muscles. This dilatation of the left ventricle can be due to any cause of dilated cardiomyopathy including aortic insufficiency, nonischemic dilated cardiomyopathy, and Noncompaction cardiomyopathy. Because the papillary muscles, chordae, and valve leaflets are usually normal in such conditions, it is also called functional mitral insufficiency.
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The Ille Cave in El Nido, Palawan Ille site can be found in El Nido in Palawan along with other cave complexes. According to Szabó , characteristics of the shell beads that were found in the site were that they were all whole beads and belonged to the following species of mollusks: Cypraea annulus, Strombus canarium, Strombus luhuanus, Nassarius arcularius, Nassarius globosus, Nassarius albescens, Nassarius pullus, Pictocolumbella ocellata, and Pyrene scripta. Together with these beads were other, larger decorative pieces. Other modified shell décor were the microperforated cut shell beads which were much more uniform than the previous two types.
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As the egg expands, the universal veil ruptures and may remain as a cup, or volva, at the base of the stalk, or as warts or volval patches on the cap. Many mushrooms lack a universal veil, therefore they do not have either a volva or volval patches. Often, a second layer of tissue, the partial veil, covers the bladelike gills that bear spores. As the cap expands, the veil breaks, and remnants of the partial veil may remain as a ring, or annulus, around the middle of the stalk or as fragments hanging from the margin of the cap.
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Annulus piscatoris of Pope Leo XIII. The Ring of the Fisherman (Latin: Anulus piscatoris; Italian: Anello Piscatorio), also known as the Piscatory Ring, is an official part of the regalia worn by the Pope, who is head of the Catholic Church and successor of Saint Peter, who was a fisherman by trade. It used to feature a bas-relief of Peter fishing from a boat, a symbolism derived from the tradition that the apostles were "fishers of men" (Mark 1:17). The Fisherman's Ring is a signet used until 1842 to seal official documents signed by the Pope.
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By contrast with Riemannian geometry, where the curvature provides a local invariant of Riemannian manifolds, Darboux's theorem states that all symplectic manifolds are locally isomorphic. The only invariants of a symplectic manifold are global in nature and topological aspects play a prominent role in symplectic geometry. The first result in symplectic topology is probably the Poincaré–Birkhoff theorem, conjectured by Henri Poincaré and then proved by G.D. Birkhoff in 1912. It claims that if an area preserving map of an annulus twists each boundary component in opposite directions, then the map has at least two fixed points.
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Miguel believes El Gato Negro is in league with the drug-smugglers that plague South Texas and was probably involved in the murder of his younger brother. While out on patrol one night as El Gato Negro, Francisco discovers two escaped convicts. Incapacitating the criminals, El Gato Negro has unknowingly stumbled across a drug-running conspiracy formed by the drug-smuggler known only as El Graduado and a mysterious South American crime organization known as The Annulus. El Gato Negro is later lured in to a trap set by El Graduado personally in an abandoned warehouse.
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A photograph of a broken segment of drill string A drill string on a drilling rig is a column, or string, of drill pipe that transmits drilling fluid (via the mud pumps) and torque (via the kelly drive or top drive) to the drill bit. The term is loosely applied to the assembled collection of the smuggler pool, drill collars, tools and drill bit. The drill string is hollow so that drilling fluid can be pumped down through it and circulated back up the annulus (the void between the drill string and the casing/open hole).
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An annular solar eclipse occurred on June 21, 2020. A solar eclipse occurs when the Moon passes between Earth and the Sun, thereby totally or partly obscuring the image of the Sun for a viewer on Earth. An annular solar eclipse occurs when the Moon's apparent diameter is smaller than the Sun's, blocking most of the Sun's light and causing the Sun to look like an annulus (ring). An annular eclipse appears as a partial eclipse over a region of the Earth thousands of kilometres wide. This was an annular solar eclipse because the Moon’s apparent diameter was 0.6% smaller than the Sun’s.
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After Mars is scattered from the annulus by encounters with other planets it continues to have encounters with other objects until the planets clear material from the inner Solar System. While these encounters enable the orbit of Mars to become decoupled from the other planets and remain on a stable orbit, they can also perturb the disk of material from which the moons of Mars form. These perturbations cause material to escape from the orbit of Mars or to impact on its surface reducing the mass of the disk resulting in the formation of smaller moons.
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A total solar eclipse occurred at the Moon’s ascending node of the orbit on March 29, 1987. It was a hybrid eclipse, with only a small portion of the central path as total, lasting a maximum of only 7.57 seconds. A solar eclipse occurs when the Moon passes between Earth and the Sun, thereby totally or partly obscuring the image of the Sun for a viewer on Earth. An annular solar eclipse occurs when the Moon's apparent diameter is smaller than the Sun's, blocking most of the Sun's light and causing the Sun to look like an annulus (ring).
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The wing itself took the form of a flat ring or annulus, curved to form an aerofoil shape in section and with upward dihedral raising it progressively towards the tips. The leading edge of the front portion was initially curved downwards to promote vortex lift over the side and rear surfaces. The annular wing was crossed by a central fuselage running between the fore and aft sections of the wing. The wing was rigged with a significant angle of incidence, the forward section being level with the top of the fuselage and the aft section with the lower fuselage.
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These annuli do not normally have any connection to well bore fluids, but maintaining pressure in them is important in order to ensure integrity of the casing strings. Though all annuli in a completed well are expected to be isolated from the production tubing and each other, connections allowing the flow of fluids between them may sometimes occur, due to either intervention or wear and tear. There is said to be "communication" between these connected annuli. During coiled tubing interventions, the void between the coil and the production tubing can also be considered an annulus and be used for circulation.
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A herpolhode is the curve traced out by the endpoint of the angular velocity vector ω of a rigid rotor, a rotating rigid body. The endpoint of the angular velocity moves in a plane in absolute space, called the invariable plane, that is orthogonal to the angular momentum vector L. The fact that the herpolhode is a curve in the invariable plane appears as part of Poinsot's construction. The trajectory of the angular velocity around the angular momentum in the invariable plane is a circle in the case of a symmetric top, but in the general case wiggles inside an annulus, while still being concave towards the angular momentum.
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The stipes of the pitcher is given off below the apex of > the leaf, is 20 inches long, and as thick as the finger. The broad > ampullaceous pitcher is 6 inches in diameter, and 12 long: it has two > fimbriated wings in front, is covered with long rusty hairs above, is wholly > studded with glands within, and the broad annulus is everted, and 1–1½ inch > in diameter. Operculum shortly stipitate, 10 inches long and 8 broad. The > inflorescence is hardly in proportion. Male raceme, 30 inches long, of which > 20 are occupied by the flowers; upper part and flowers clothed with short > rusty pubescence.
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In this research, professor Dreyfus demonstrated the rationale in treating the tricuspid annulus dilation independently from the presence of tricuspid regurgitation. This principle influenced the guidelines of the international societies of Cardiology, may it be the American College of Cardiology / American Heart Association, or the European Society of Cardiology. He also focused his research on a new technique to replace the aortic valve, using autologous pericardium.NHS stories: Making better heart valves, BBC, 17 janvier 2004 Results of this method, called Cardiomend were presented at the American Society of Thoracic Surgeons annual meeting in 2001The First Totally Stentless and Reproducible Autologous Pericardial Valve , STS, 2006 and were the object of two articles.
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Armando Ochoa, also known as El Graduado, is a fictional character and comic book supervillain created by Richard Dominguez and published by Azteca Productions. The character made his first appearance in El Gato Negro #1 (October 1993). Son of the successful South Texas businessman and drug-lord Boss Ochoa, El Graduado vies to usurp his father’s throne and earn a seat in a criminal organization known as The Annulus. Earning the nickname of El Graduado, The Graduate, after graduating from a prestigious Ivy League University in the United States, El Graduado has proven himself to be a powerful adversary of high intellect and superb fighting ability.
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Kramer, History Begins at Sumer, pp. 52–55. The first usage of the term came from Mesopotamia circa 3000 BC. Societies in the Americas, Asia, Africa and Australia used shell money – often, the shells of the cowry (Cypraea moneta L. or C. annulus L.). According to Herodotus, the Lydians were the first people to introduce the use of gold and silver coins.Herodotus. Histories, I, 94 It is thought by modern scholars that these first stamped coins were minted around 650 to 600 BC. Song Dynasty Jiaozi, the world's earliest paper money The system of commodity money eventually evolved into a system of representative money.
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Often, gas is produced through the same perforations as the oil. This can be problematic if gas enters the pump, because it can result in what is known as gas locking, where insufficient pressure builds up in the pump barrel to open the valves (due to compression of the gas) and little or nothing is pumped. To preclude this, the inlet for the pump can be placed below the perforations. As the gas-laden fluid enters the well bore through the perforations, the gas bubbles up the annulus (the space between the casing and the tubing) while the liquid moves down to the standing valve inlet.
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The partial veil may be membranous or cobwebby, and may have multiple layers. Various adjectives are commonly used to describe the texture of partial veils, such as: membranous, like a membrane; cottony, where the veil tissue is made of separate fibers that may be easily separated like a cotton ball; fibrillose, composed of thin strands and glutinous, with a slimy consistency. Some mushrooms have partial veils which are evanescent, which are so thin and delicate that they disappear after they rupture, or leave merely a faint trace on the stem known as an annular zone or ring zone. Others may leave a persistent annulus (ring).
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The forewings are drab with the base below the costa white, extending as a line to the middle of the wing below the subcostal, also a fine white line above the subcostal vein. There is an angled white line at the end of the cell before a drab spot, suffusing beyond it with a white annulus containing a drab spot. There is also a postmedial inbent lunular white line, the points of the lunules slightly produced basad on the veins. The terminal space has fine white lines on the veins, and thicker white streaks on the interspaces, the latter diverging on the termen and enclosing drab spots.
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While an annular solar eclipse occurs when the Moon's apparent diameter is smaller than the Sun's, blocking most of the Sun's light and causing the Sun to look like an annulus (ring). These central eclipses occurs only in a narrow path across Earth's surface. A partial solar eclipse, on the other hand, is visible over a surrounding region thousands of kilometres wide in areas where the non-central shadow falls. Southeast Asia gets a moderate number solar eclipse events, however not every country will get to experience the same type of eclipse since the path of totality is only thin compared to the vastness of earth's surface.
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Some hand drills have been designed to retrieve cores without using auger flights to transport the cuttings up the hole. These drills typically have a core barrel with teeth at the lower end, and are rotated by a brace or T-handle, or by a small engine. The barrel itself can be omitted, so that the drill consists only of a ring with a cutting slot to cut the annulus around the core, and a vertical rod to attach the ring to the surface. A couple of small hand-held drills, or mini drills, have been designed to quickly collect core samples up to 50 cm long.
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Two examples of the reclassification of sections into genera are: Leratiomyces in 2008 in part replacing Section Stropholoma and Protostropharia in 2013 in part replacing section Stercophila. The psychedelic mushroom formerly known as Stropharia cubensis was reclassified into the genus Psilocybe by mycologist Rolf Singer and subsequently this classification was supported by modern phylogenetic analyses based upon DNA sequence comparison. It bears a superficial resemblance to Stropharia with its relatively large size, well-developed annulus, and dark spores, hence in some references it is referred to as Psilocybe cubensis,O. T. Oss, O. N. Oeric, Psilocybin: magic mushroom grower's guide: a handbook for psilocybin Enthusiasts, Quick American Archives, 2nded.
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With a top drive, the draw works only has to pick up a new stand from the rack and make up two joints. Making fewer and quicker connections reduces the risk of a stuck string from annulus clogging while drilling fluid is not being pumped. Several different kinds of top drives exist, and are usually classified based on the "Safe Working Load" (SWL) of the equipment and the size and type of motor used to rotate the drillpipe. For offshore and heavy duty use, a 1000 short ton unit would be used, whereas a smaller land rig may only require a 500 short ton device.
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Hydrotesting – this is a process by which the pipeline in question is pressure tested to a predefined pressure above the operating design pressure of the pipeline. Dewatering – this involves pushing pigs through the pipeline propelled by a gas to remove the water prior to start-up. Other services include vacuum drying, degassing, pneumatic testing, barrier testing, leak testing, decommissioning to mention but a few. On the pipeline process pre-commissioning side, there are various services such as chemical cleaning, helium leak detection, bolting, hot oil flushing, pipe freezing, foam inerting etc... Other services include valve testing, umbilical testing, hot tapping, leak metering, riser annulus testing.
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Teratohyla pulverata is a small glass frog, lacking humeral spines in males, and has a lobed bulbous liver, placing it in the genus Cochranella. Adult males measure 22-24.5 mm from the snout to the vent, while the females are larger at 25.3-28.3 mm snout-vent length. The snout is rounded if seen from above, but presents a distinctly sloped profile when viewed from the side. The translucent tympanum is visible but not large, measuring about one-fifth to one-fourth of the eye's diameter; the tympanic annulus is not hidden except for the dorsal margin, which is covered by the supratympanic fold.
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The Nervo Formation consists of rolling to locally hummocky plains that lie in intermassif depressions between the mountains formed by the Caloris Montes Formation. The plains generally lie within the annulus of rugged terrain marked by the Caloris Montes Formation and locally appear to drape and overlie some of the more low-lying massifs. The Nervo bears some resemblance to the Apennine Bench Formation around the Imbrium Basin;Hackman, R. J., 1966, Geologic map of the Montes Apenninus region of the Moon: U.S. Geological Survey Miscellaneous Investigations Series Map I-463, scale 1:1,000,000. its closest counterpart in Orientale is the knobby facies of the Montes Rook Formation.
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If the firestop was tested only to a perfectly centred opening, an offset may disqualify it for use in the field. In practical terms, an offset penetrant or annulus may very well present an added degree of difficulty for passing the fire test. A metallic sleeve as well as a metallic penetrant will conduct heat through the firestop. Insulation on the bottom of floor systems or in the middle of wall systems, as is the case with caulking or paint based (soft) systems, will encourage more heat to travel through the sleeve and the penetrant, which can put more stress on the seal on the unexposed side.
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Transesophageal echocardiography is less often used for aortic stenosis & insufficiency because the angle between the probe and the aortic valve is not optimal (the best window is a transgastric view). MRI and CT can be used to evaluate the valve, but much less commonly than TTE. Quantification of the maximum velocity through the valve, the area of the opening of the valve, calcification, morphology (tricuspid, bicuspid, unicuspid), and size of the valve (annulus, sinuses, sinotubular junction) are common parameters when evaluating the aortic valve. Invasive measurement of the aortic valve can be done during a cardiac catheterization in which the pressure in the left ventricle and aorta can be measured simultaneously.
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He had also set up a boarding school which taught trigonometry and navigation as extra subjects, as well as running a shop which sold books, stationery, barometers, thermometers, and philosophical and mathematical instruments. He was a well-respected professional and valued advisor to the Rev'd Nevil Maskelyne, the Astronomer Royal. Andrews predicted the annular solar eclipse in 1791: :To the north of Scotland it will be a very great eclipse; but nowhere total on account of the apparent diameter of the sun. The spectators will be entertained with a beautiful annulus, or ring of light encompassing the opaque body of the Moon on every side.
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This mushroom is recognized by its large, orange-brown cap partially covered by a thick patch of universal veil, its white gills and spores, its cream-colored stalk adorned with a partial veil, a partially hollow stem (filled with a stringy white pith), and by the presence of a large, sacklike volva at the base of the stalk. The spores of this species do not change color when placed in a solution of Melzer's reagent, and thus are termed inamyloid. This characteristic in combination with the annulus and absence of a bulb at the base of the stalk place this mushroom in the Section Caesareae.
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A remnant pre-metric speed limit sign in NSW Historically, Australia operated a simple speed limit system of urban and rural default limits, denoted in miles per hour. As part of metrication in 1974, speed limits and speed advisories were converted into kilometres per hour, rounded to the nearest 10 km/h, leading to small discrepancies in speed limits. Signage changed from a North American-style black and white textual sign to a design based on metric signage in use in New Zealand with black number in red annulus (or circle) on white, itself a derivative of the European standard number in red circle design.
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This is selected where the liner is required to mechanically hold back the movement of formation sand. There are many variants of openhole sand control, the three popular choices being stand-alone screens, openhole gravel packs (also known as external gravel packs, where a sized sand 'gravel' is placed as an annulus around the sand control screen) and expandable screens. Screen designs are mainly wire-wrap or premium; wire-wrap screens use spiral- welded corrosion-resistant wire wrapped around a drilled basepipe to provide a consistent small helical gap (such as , termed 12 gauge). Premium screens use a woven metal cloth wrapped around a basepipe.
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A general method of supporting an artificial heart valve according to the current invention, such as a distance adjusting device within the valve, the supporting design is first linked with and then anchored at the annulus of the valve, or it may already have an extending pillar for anchor. For most cases, in the deployed state, the anchor is positioned in perpendicular to the longitudinal axis. To open and close the leaflet, the pillar is then connected to one of the valve leaflets for supporting. With all kinds of repairing apparatus, the pillar may be positioned along with a flexible tensile member, for example, an natural or artificial rope.
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Or a type of direct connection involves extending a coil from the pillar into the two nearby leaflets to bridge with the center parts of the leaflets. Other forms of connections for supporting purpose also involve artificial chord or pillar attachments described above. Although the methods of the current inventions are aimed at contracting the artificial heart valve’s annulus, particularly for the treatment of valve regurgitation, these inventions may find wider applications. Especially, the clip deployment device can be used in other circumstances, such as to transfer a plurality of sequential clips in a straight or curved manner to tighten the tissue or optionally bind the tether portion of the tissue.
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Propagation of the instability around the flow path annulus is driven by stall cell blockage causing an incidence spike on the adjacent blade. The adjacent blade stalls as a result of the incidence spike, thus causing stall cell "rotation" around the rotor. Stable local stalls can also occur which are axi-symmetric, covering the complete circumference of the compressor disc, but only a portion of its radial plane, with the remainder of the face of the compressor continuing to pass normal flow. A rotational stall may be momentary, resulting from an external disturbance, or may be steady as the compressor finds a working equilibrium between stalled and unstalled areas.
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Graham Hill's 1968 Lotus 56 Turbine The 1968 Indianapolis 500 was the second and ultimately the final year of participation by the controversial STP Granatelli Turbine machines. For 1968, the Pratt & Whitney turbine engine was installed in the Lotus 56 chassis, often known colloquially as the "Wedge Turbine," and sometimes affectionately as the "Doorstop." In a veiled effort to curtail the turbine's power output, USAC had imposed revised regulations regarding the maximum annulus inlet (reduced from 23.999 in² to 15.999 in²). Another rule change dictated that cars were required to conduct three mandatory pit stops, up from two that were required from 1965-1967.
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In turn, particles can be returned or removed to the bed depending on the size of the particle. The entrained solids are captured and sent back to the base of the riser through a vertical standpipe. The large central nozzle is the main component of the Annular Fluidized bed and this differentiate itself from other fluidized beds. The central nozzle is surrounded by a stationary fluidized bed and “due to moderate primary gas fluidisation of the annulus, the solids overflow at the upper edge of the central nozzle” which is then transported and mixed in the mixing chamber by a high upward velocity central secondary gas stream.
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Influence of gas velocity in the Annular Fluidized Bed Bubbling occurs in the annular fluidized bed caused by the introduction of gas by the central nozzle at a certain velocity moves in the general upwards direction. The sudden eruption of gas at the central nozzle causes particles to be transport in the bubbles wake By increasing the velocity of the annulus results in an increase in the bubble size and the bubbling velocity. The new increase in bubble dynamics enables “the ejected solids to penetrate deeper into the central gas jet”. As a result of this, the concentration and velocity of solids increases and consequently the solid optimum mass flux increases.
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Fisker brand logo, annulus with Fisker circumscribed, and H inscribed, with the H-crossbar splitting the inner circle into two semicircle regions; Used for Fisker Coachbuild, Fisker Automotive, Fisker Inc. In 2005, Fisker teamed up with Bernhard Koehler, a colleague from his days at BMW and Aston Martin, to start a new luxury car custom design firm, Fisker Coachbuild, based in Orange County, California. Coach-built (or custom-built) one-of-a-kind cars were extremely rare after the 1950s, primarily due to the difficulty and costliness created by strict Federal safety and pollution rules. With Fisker Coachbuild, Fisker planned a modern version of coachbuilding, dealing in runs of 150 cars.
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A cement bond log documents the evaluation of the integrity of cement work performed on an oil well. In the process of drilling and completing a well, cement is injected through the wellbore and rises up the annulus between the steel casing and the formation. A sonic tool is typically run on wireline by a service company that detects the bond of the cement to the casing and formation via a principle based on resonance. Casing that is not bound has a higher resonant vibration than that which is bound, causing the imparted energy from the sonic signal to be transferred to the formation.
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El Observador (The Observer) is a fictional character and comic book supervillain appearing in comic books published by Azteca Productions. Co- created by Richard Dominguez and Michael S. Moore, the character made his first appearance in El Gato Negro: Nocturnal Warrior #1 (November 2004).El Gato Negro Returns in November: News Bulletins - Comics BulletinEl Gato Negro featured at International Hero An expert assassin and mercenary from Brazil, El Observador has an exclusive contract with the South American crime syndicate known as The Annulus. While he possess no superhuman abilities, El Observador is highly skilled with lethal projectiles, bladed weapons, and is a superb hand-to-hand combatant.
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Although there is no hard limitation on the size, it is practically limited by the software's response time in the calculation for a large aperture and sky annulus, and the tool for the user to interactively specify the size parameters includes a subimage that is only about 80 pixels on a side (at this time). The aperture is placed on the desired image location with a mouse click. Options to allow minor adjustments of the aperture position via centroiding are available. APT also has pixel-zapping functionality, which can be used to temporarily set the value of select pixels to NaN (not a number), effectively removing them from the aperture-photometry calculations.
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Consequently, the contrast mechanisms are different between conventional dark field imaging and STEM dark field. perovskite oxide strontium titanate (SrTiO3) taken with a high-angle annular dark field (HAADF) detector An annular dark field detector collects electrons from an annulus around the beam, sampling far more scattered electrons than can pass through an objective aperture. This gives an advantage in terms of signal collection efficiency and allows the main beam to pass to an electron energy loss spectroscopy (EELS) detector, allowing both types of measurement to be performed simultaneously. Annular dark field imaging is also commonly performed in parallel with energy-dispersive X-ray spectroscopy acquisition and can be also done in parallel to bright-field (STEM) imaging.
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Crestanello JA, Zehr KJ, Daly RC, Orszulak TA, Schaff HV, Is There a Role for the Left Ventricle Apical-aortic Conduit for Acquired Aortic Stenosis? , J of Heart Valve Disease 2004;13:57-63. Thourani VH, Keeling WB, Guyton RA, Dara A, Hurst SD, Lattouf OM, Outcomes of Off-Pump Aortic Valve Bypass Surgery for the Relief of Aortic Stenosis in Adults, Ann Thorac Surg 2011;91:131-136. Takemura T, Tsuda Y. Apicoaortic conduit insertion for elderly patients with acquired aortic stenosis and small aortic annulus, Kyobu Geka 2006 Apr;59(4):294‐300 Ruhl KM, Langebartels G, Autchbach R, Katoh M, Gunther RW, Krombach GA, MRI of the heart following implantation of a left ventricular apico‐aortic conduit.
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The atrioventricular rings serve for the attachment of the muscular fibers of the atria and ventricles, and for the attachment of the bicuspid and tricuspid valves. The left atrioventricular ring is closely connected, by its right margin, with the aortic arterial ring; between these and the right atrioventricular ring is a triangular mass of fibrous tissue, the Fibrous trigone, which represents the os cordis seen in the heart of some of the larger animals, such as the ox. Lastly, there is the tendinous band, already referred to, the posterior surface of the conus arteriosus. The fibrous rings surrounding the arterial orifices serve for the attachment of the great vessels and semilunar valves, they are known as The aortic annulus.
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If a hole of height h is drilled straight through the center of a sphere, the volume of the remaining band does not depend on the size of the sphere. For a larger sphere, the band will be thinner but longer. In what is called the napkin ring problem, one shows by Cavalieri's principle that when a hole is drilled straight through the centre of a sphere where the remaining band has height h, the volume of the remaining material surprisingly does not depend on the size of the sphere. The cross-section of the remaining ring is a plane annulus, whose area is the difference between the areas of two circles.
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Enantiomers of Pillar[5]arene The orientation of the hydroquinone oxygens on both rims of the pillararene allow the macrocycle to exhibit planar chirality. When the substituent on the hydroquinone oxygen is small enough to fit through the cavity of the pillararene, allowing for oxygen-through-the- annulus rotation to occur, racemization occurs. If this substituent is large enough to prevent rotation, optically active pillararene macrocycles can be isolated.Ogoshi, T.; Masaki, K.; Shiga, R.; Kitajima, K.; Yamagishi, T.-a. Org. Lett. 2011, 13, 1264Strutt, N. L., Fairen-Jimenez, D.; Iehl, J.; Lalonde, M. B.; Snurr, R. Q.; Farha, O. K.; Hupp, J. T.; Stoddart, J. F. J. Am. Chem. Soc. 2012, 134, 17436.
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This can lead to the subsequent displacement of the papillary muscles and the dilatation of the mitral valve annulus. Rheumatic fever (RF), Marfan's syndrome and the Ehlers–Danlos syndromes are other typical causes. Mitral valve stenosis (MVS) can sometimes be a cause of mitral regurgitation (MR) in the sense that a stenotic valve (calcified and with restricted range of movement) allows backflow (regurgitation) if it is too stiff and misshapen to close completely. Most MVS is caused by RF, so one can say that MVS is sometimes the proximal cause of MI/MR (that is, stenotic MI/MR) and that RF is often the distal cause of MVS, MI/MR, or both.
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An annular solar eclipse occurs when the Moon's apparent diameter is smaller than the Sun's, blocking most of the Sun's light and causing the Sun to look like an annulus (ring). An annular eclipse appears as a partial eclipse over a region of the Earth thousands of kilometres wide. The annular eclipse was the first visible from the contiguous United States since the solar eclipse of May 10, 1994 (Saros 128), and the first in Asia since the solar eclipse of January 15, 2010 (Saros 141). The path of the eclipse's antumbra included heavily populated regions of China and Japan, and an estimated 100 million people in those areas were capable of viewing annularity.
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It was Bex who introduced in 1980 the possibility of aortic translocation. But Nikaidoh has put the procedure in practice in 1984. It results in an anatomical normal heart, even better than with an ASO, because also the cones are switched instead of only the arteries as with an ASO. The procedure is contra-indicated by certain coronary anomalies. In 1984, Nikaidoh introduced a surgical approach for the management of TGA, VSD, and pulmonary stenosis (PS), which he called “aortic translocation and biventricular outflow tract reconstruction.” The repair consisted of harvesting the aortic root from the right ventricle, with or without the coronary arteries attached, and relieving the LVOTO by dividing the outlet septum and pulmonary valve annulus.
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The Meteor-3-6/PRARE satellite is the sixth in the Russian Meteor-3 series of meteorological satellites launched in 1994. ILRS Mission Support Status: Satellite laser ranging and PRARE data was used for precision orbit determination and intercomparison of the two techniques. ILRS tracking support of this satellite was discontinued on 11 November 1995. Instrumentation: Meteor-3-6 has the following instrumentation on board: # Scanning TV-sensor # Visible light and infrared radiometers # Scanning infrared radiometer # Ozone Mapper # Precise Range and Range-Rate Equipment (PRARE) # Retroreflector array RetroReflector Array (RRA) Characteristics: The retro-reflector array is a box wing annulus with a diameter of 28 cm and has 24 corner cube reflectors.
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A rounded profile float shoe with an integral check valve attached to the bottom of a casing string prevents reverse flow, or U-tubing, of cement slurry from the annulus into the casing or flow of wellbore fluids into the casing string as it is run. The float shoe also guides the casing toward the center of the hole to minimize hitting rock ledges or washouts as the casing is run into the wellbore. By "floating" casing in, hook weight is reduced. With controlled or partial fill-up as the string is run, the casing string can be floated into position, precluding the need for the rig to carry the entire weight of the casing string.
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When a tear in the outer, fibrous ring of an intervertebral disc allows the soft, central portion to bulge out beyond the damaged outer rings, the disc is said to be herniated. Disc herniation is frequently associated with age-related degeneration of the outer ring, known as the annulus fibrosus, but is normally triggered by trauma or straining by lifting or twisting. Tears are almost always postero-lateral (on the back of the sides) owing to the presence of the posterior longitudinal ligament in the spinal canal. A tear in the disc ring may result in the release of chemicals causing inflammation, which can result in severe pain even in the absence of nerve root compression.
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An annular solar eclipse will occur on October 14, 2023. A solar eclipse occurs when the Moon passes between Earth and the Sun, thereby totally or partly obscuring the image of the Sun for a viewer on Earth. An annular solar eclipse occurs when the Moon's apparent diameter is smaller than the Sun's, blocking most of the Sun's light and causing the Sun to look like an annulus (ring). An annular eclipse appears as a partial eclipse over a region of the Earth thousands of kilometres or miles wide. This will be the second annular eclipse visible from Albuquerque in 11 years, where it crosses the path of the May 2012 eclipse.
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An annular solar eclipse occurred at the Moon's ascending node of the orbit on February 7, 2008. A solar eclipse occurs when the Moon passes between Earth and the Sun, thereby totally or partly obscuring the image of the Sun for a viewer on Earth. An annular solar eclipse occurs when the Moon's apparent diameter is smaller than the Sun's, blocking most of the Sun's light and causing the Sun to look like an annulus (ring). An annular eclipse appears as a partial eclipse over a region of the Earth thousands of kilometres wide. Occurring 7 days after apogee (January 31, 2008) and 6.9 days before perigee (February 14, 2008), the Moon’s apparent diameter was near the average diameter.
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The observable southward drift of Arctic ice was thought to result from the "pushing" effect of this warmer water. According to the historian Hampton Sides, despite the lack of scientific evidence the theory "gathered a logic of its own ... No amount of contrary evidence could dislodge it from the collective imagination". The fact that all northbound voyages had, sooner or later, been stopped by ice was rationalized through a belief that the undiscovered sea was encircled in a ring or "annulus" of ice which, it was thought, could be penetrated via one of several warm-water gateways or portals. The initial quest for the North Pole thus became a search for one of these portals.
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The melt stream exits the melt delivery nozzle into the spray chamber. The melt stream is protected from being destabilised by the turbulent gas environment in the spray chamber by primary gas jets operating at intermediate inert gas pressure of 2 to 4 bar, the resulting gas flow is parallel to the melt stream to stabilise the melt stream. The secondary atomiser uses high velocity (250 to 350 ms−1), high- pressure (6 to 10 bar) gas jets to impinge on the melt stream to achieve atomisation. The atomiser jets are usually arranged as an annulus or as discrete jets positioned symmetrically about the melt delivery nozzle, or less commonly, arranged as a linear nozzle for the production of strip products.
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If enough pressure is exerted, it is possible for the nucleus pulposus material to seep out through the tears in the annulus and can cause what is known as a herniated disc. As the two vertebrae above and below the affected disc begin to collapse upon each other, the facet joints at the back of the spine are forced to shift which can affect their function. Additionally, the body can react to the closing gap between vertebrae by creating bone spurs around the disc space in an attempt to stop excess motion. This can cause issues if the bone spurs start to grow into the spinal canal and put pressure on the spinal cord and surrounding nerve roots as it can cause pain and affect nerve function.
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Theorem. If γ is a continuous Jordan curve on a Riemann surface X, there is a smooth closed 1-form α of compact support such that for any closed smooth 1-form ω on X. ::It suffices to prove this when γ is a regular closed curve. By the inverse function theorem, there is a tubular neighbourhood of the image of γ, i.e. a smooth diffeomorphism of the annulus into X such that . Using a bump function on the second factor, a non-negative function g with compact support can be constructed such that g is smooth off γ, has support in a small neighbourhood of γ, and in a sufficiently small neighbourhood of γ is equal to 0 for and 1 for .
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If two bounded connected planar shapes have disjoint convex hulls that are separated by a positive distance, then they necessarily have exactly four common lines of support, the bitangents of the two convex hulls. Two of these lines of support separate the two shapes, and are called critical support lines. Otherwise there may be more or fewer than four lines of support, even if the shapes themselves are disjoint. For instance, if one shape is an annulus that contains the other, then there are no common lines of support, while if each of two shapes consists of a pair of small disks at opposite corners of a square then there may be as many as 16 common lines of support.
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Phase contrast dispersion staining requires that a phase contrast objective with the appropriate phase annulus in the substage condenser be used to see the effect. It takes advantage of the fact that the rays of light that are not shifted in phase by the presence of the object are separated from the phase shifted rays at the back focal plane of the objective. These are the colors shown by a glass sphere that matches the refractive index of the mounting medium at a wavelength of 589 nanometers when using phase contrast dispersion staining. These unaffected rays are then significantly decreased in intensity. With “Positive Phase Contrast”, the particle appears colored from the contributing wavelengths for which the mounting medium has the higher refractive index.
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Live drain fly larvae Datzia bispina holotype in Burmese amber The larvae of the subfamilies Psychodinae, Sycoracinae and Horaiellinae live in aquatic to semi-terrestrial or sludge- based habitats, including bathroom sinks, where they feed on bacteria and can become problematic. The larvae of the most commonly encountered species are nearly transparent with a non-retractable black head and can sometimes be seen moving along the moist edges of crevices in shower stalls or bathtubs or submerged in toilet water. The larval form of the moth flies is usually between long, and is shaped like a long, thin, somewhat flattened cylinder. The body lacks prolegs, but the body segments are divided into a series of rings called annuli (singular is annulus).
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There is an antemedial black point in the cell and discoidal striga, the latter with a slight black-brown annulus above it on the costa, as well as a faint brownish-ochreous line from the origin of vein 2 to the inner margin. There is also a brownish-ochreous shade beyond the cell and an ochreous-brown postmedial line with two black-brown striae at the costa. There is a black point at the apex and an elliptical brownish-ochreous patch on the termen, as well as a black striga before the termen at vein 3. The hindwings are silvery white with a black discoidal bar, a postmedial line with a black spot at the costa, which then becomes brownish ochreous.
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It has steel blades to shear the pipe and seals to seal the annulus after shearing the pipe. Blind shear rams (also known as shear seal rams, or sealing shear rams) are intended to seal a wellbore, even when the bore is occupied by a drill string, by cutting through the drill string as the rams close off the well. The upper portion of the severed drill string is freed from the ram, while the lower portion may be crimped and the “fish tail” captured to hang the drill string off the BOP. In addition to the standard ram functions, variable-bore pipe rams are frequently used as test rams in a modified blowout preventer device known as a stack test valve.
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Although his son learned of his father's legacy as El Gato Negro, he abdicated the title, preferring to lead a normal life. Francisco died in a traffic collision with his wife, leaving Agustin to become the legal guardian of the couple's only son, Francisco Jr. Years later, his grandson adopted the mantle of El Gato Negro to avenge the death of his best friend Mario Bustamonte. During the first few months that Francisco operated as El Gato Negro, he encountered Armando Ochoa, better known as the career-criminal "El Graduado". Son of the successful businessman and drug lord Ignacio Ochoa, an enemy Agustin had faced early in his career, El Graduado planned to take his father's place amongst a criminal organization known as the Annulus.
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The phase is proportional to the optical path length the light ray has traversed, and thus gives a measure of the integral of the refractive index along the ray path. The phase cannot be measured directly at optical or higher frequencies, and therefore needs to be converted into intensity by interference with a reference beam. In the visual spectrum this is done using Zernike phase-contrast microscopy, differential interference contrast microscopy (DIC) or interferometry. Zernike phase-contrast microscopy introduces a phase shift to the low spatial frequency components of the image with a phase-shifting annulus in the Fourier plane of the sample, so that high-spatial-frequency parts of the image can interfere with the low-frequency reference beam.
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The genus Armillaria is a well-studied and widely distributed mushroom-forming genus with rhizomorph production abundant in most species. One of the more common morphological characteristics for the genus is the presence of an annulus, which is a ring-like structure in the stem of the fruiting body with exception of the species Desarmillaria tabescens. This species is known to produce unmelanized rhizomorphs in-vitro, but it does not produce them in nature. In a controlled environment study with high levels of oxygen and saturated soil moisture content, Desarmillaria species produces melanized rhizomorphs However, these two conditions are difficult to find in the climate of today and could explain the lack of melanized rhizomorphs in nature and could be a carryover from previous evolutionary periods.
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When the spine is straight, such as in standing or lying down, internal pressure is equalized on all parts of the discs. While sitting or bending to lift, internal pressure on a disc can move from 17 psi (lying down) to over 300 psi (lifting with a rounded back). Herniation of the contents of the disc into the spinal canal often occurs when the anterior side (stomach side) of the disc is compressed while sitting or bending forward, and the contents (nucleus pulposus) get pressed against the tightly stretched and thinned membrane (annulus fibrosus) on the posterior side (back side) of the disc. The combination of membrane- thinning from stretching and increased internal pressure (200 to 300 psi) can result in the rupture of the confining membrane.
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Emory University Hospital Front Entrance Silverman became interested in medical photography and produced a collection which drove him to publish more than 24 articles on the value of images in the diagnosis of a number of diseases. Between 1966 and 1968, at the request of Hurst, he became a cardiology fellow at the Emory University in Atlanta. In 1968, he wrote two articles with Hurst, one called "The mitral complex: Interaction of the anatomy, physiology, and pathology of the mitral annulus, mitral valve leaflets, chordae tendineae, and papillary muscles" and the other titled "The Hand and the Heart", a topic Silverman also presented to the Laennec Society of the American Heart Association. The article was illustrated with 24 pictures of findings in the hands of people with cardiovascular disease.
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Because NGC 6118 has loosely wound spiral open arms, no clear defined spiral arms like the Milky Way galaxy and lacks a central bar, the galaxy thus does not have a galactic habitable zone like the Milky Way.Universe Today, Supernova in a Distant Galaxy NGC 6118, 24 Mar , 2012, by Fraser CainAstro Photo Lab, The Blinking Galaxy For the Milky Way, the galactic habitable zone is commonly believed to be an annulus with an outer radius of about 10 kiloparsecs and an inner radius close to the Galactic Center, both of which lack hard boundaries. NGC 6118 is difficult to see with a small telescope. Amateur astronomers have nicknamed it the "Blinking Galaxy", as it has a tendency to flick in and out of view with different eye positions.
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Caterpillar Forewing dull lilac grey, flushed with fawn colour, especially in median area; a black, semibifid streak from base below cell; lines brownish, double, indistinct; the median shade dark grey or fawn colour, diffuse and prominent; orbicular stigma pale, black-edged; reniform large with grey centre, blackish in lower lobe, with pale annulus and black outline; claviform small, with dark outline; submarginal line dull, with darker shades in places on each side; hindwing greyish fuscous, paler towards base; — in basistriga Stgr. the ground colour is bluish grey except the median area, and the black basal streak is stronger; this form is recorded from western Turkestan, eastern Siberia, Japan, and China, also from Norway; a small series from Pescocostanzo, Italy, seems referable here; — ab. grisescens Stgr. from Tibet and Turkestan is altogether paler and greyer; — ab.
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Rods (bacteria that have the shape of a rod and grow in length, but not in diameter) are a static mixture between a V0- and a V1-morph, where the caps act as V0-morphs and the cylinder between the caps as V1-morph.The mixture is called static because the weight coefficients of the contributions of the V0- and V1-morph terms in the shape correction function are constant during growth. Crusts, such as lichens that grow on a solid substrate, are a dynamic mixture between a V0- and a V1-morph, where the inner part acts as V0-morph, and the outer annulus as V1-morph.The mixture is called dynamic because the weight coefficients of the contributions of the V0- and V1-morph terms in the shape correction function change during growth.
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No antitorque system is needed for a thermal drill, and instead of a motor that provides torque, the power is used to generate heat in the cutting head, which is ring shaped to melt an annulus of ice around the core. Some drills may also have a centralizer, to keep the sonde in the middle of the borehole. The sonde of an electrothermal drill designed to run submerged in meltwater may consist almost entirely of the core barrel plus the heated cutting head (diagram (a) in the figure to the right). Alternative designs for use in colder ice (see diagram (b) at right) may have a compartment above the core barrel, and tubes that run down to just above the cutting head; a vacuum pump sucks up the meltwater.
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Baker, PEB-20 Casing, tubing, and wellhead leaks have occurred in recent years. For example, in 2013, two wells were found with casing leaks, four with tubing leaks, and two with leaks at the wellhead.Baker, PEB-19 In 2008, one well – "Porter 50A" – was found to have a gas pressure of 400 pounds per square inch on the surface annulus, an indication of a serious underground leak and potential safety hazard; this well was immediately removed from service, and on investigation corrosion was discovered along a 600-foot stretch of the production casing, ending more than 1000 feet below ground surface.Baker, PEB-18 SoCalGas designed a Storage Integrity Management Program to address these deficiences, along with a budget, and presented it to the State Public Utility Commission in 2014.
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Rather than returning to the surface, the drilling mud was escaping into fractures that had formed in the rock at the bottom of the hole. Pemex officials decided to remove the bit, run the drill pipe back into the hole and pump materials down this open-ended drill pipe to seal off the fractures that were causing the loss of circulation. During the removal of the pipe on Sedco 135, the drilling mud suddenly began to flow up towards the surface; by removing the drill-string the well was swabbed (an effect observed when mud must flow down the annulus to replace displaced drill pipe volume below the bit) leading to a kick. Normally, this flow can be stopped by activating shear rams contained in the blowout preventer (BOP).
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In mathematics, the Schwarz alternating method or alternating process is an iterative method introduced in 1869-1870 by Hermann Schwarz in the theory of conformal mapping. Given two overlapping regions in the complex plane in each of which the Dirichlet problem could be solved, Schwarz described an iterative method for solving the Dirichlet problem in their union, provided their intersection was suitably well behaved. This was one of several constructive techniques of conformal mapping developed by Schwarz as a contribution to the problem of uniformization, posed by Riemann in the 1850s and first resolved rigorously by Koebe and Poincaré in 1907. It furnished a scheme for uniformizing the union of two regions knowing how to uniformize each of them separately, provided their intersection was topologically a disk or an annulus.
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When steadily fixating the central dot for many seconds, the peripheral annulus will fade and will be replaced by the colour or texture of the background. In vision, filling-in phenomena are those responsible for the completion of missing information across the physiological blind spot, and across natural and artificial scotomata. There is also evidence for similar mechanisms of completion in normal visual analysis. Classical demonstrations of perceptual filling-in involve filling in at the blind spot in monocular vision, and images stabilized on the retina either by means of special lenses, or under certain conditions of steady fixation. For example, naturally in monocular vision at the physiological blind spot, the percept is not a hole in the visual field, but the content is “filled-in” based on information from the surrounding visual field.
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Stimuli consisted of a disk-ring configuration similar to that illustrating the Troxler effect, but where the inner and outer part of the annulus have two physically different colours. After a few seconds of (peripheral) fixation, the disk tends to disappear, whereas the outer contour of the ring is perceived much longer, and the area of the disk is filled-in with the colour of the ring (Krauskopf 1967). These stimuli where intermixed with control stimuli, in which the physical colour of the disk was gradually changed to that of the ring. The animals were instructed to signal a colour change, and their responses to control stimuli and to test stimuli were compared in order to determine if monkeys perceive colour filling-in under steady fixation like humans.
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Leucoagaricus leucothites is another all-white mushroom with an annulus, free gills, and white spore print, but it lacks a volva and has thick-walled dextrinoid (staining red-brown in Melzer's reagent) egg-shaped spores with a pore. A. bisporigera may also be confused with the larger edible species Agaricus silvicola, the "horse-mushroom". Like many white amanitas, young fruit bodies of A. bisporigera, still enveloped in the universal veil, can be confused with puffball species, but a longitudinal cut of the fruit body reveals internal structures in the Amanita that are absent in puffballs. In 2006, seven members of the Hmong community living in Minnesota were poisoned with A. bisporigera because they had confused it with edible paddy straw mushrooms (Volvariella volvacea) that grow in Southeast Asia.
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It is then always possible to find a function \chi(r) such that A'(r)=0 inside the annulus, so one would conclude that the system with enclosed flux \Phi is equivalent to a system with zero enclosed flux. However, for any arbitrary \Phi the gauge transformed wave function is no longer single-valued: The phase of \psi' changes by : \delta\phi=(e/\hbar)\oint_C abla\chi(r)\cdot dl=-(e/\hbar)\oint_C A(r)\cdot dl=-2\pi\Phi/\Phi_0 whenever one of the coordinates r_n is moved along the ring to its starting point. The requirement of a single-valued wave function therefore restricts the gauge transformation to fluxes \Phi that are an integer multiple of \Phi_0. Systems that enclose a flux differing by a multiple of h/e are equivalent.
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An annular solar eclipse occurred on January 15, 2010 with a magnitude of 0.9190. A solar eclipse occurs when the Moon passes between Earth and the Sun, thereby totally or partly obscuring the image of the Sun for a viewer on Earth. An annular solar eclipse occurs when the Moon's apparent diameter is smaller than the Sun's, blocking most of the Sun's light and causing the Sun to look like an annulus (ring). An annular eclipse appears as a partial eclipse over a region of the Earth thousands of kilometres wide. It was the longest annular solar eclipse of the millennium,NASA – Solar Eclipse Search Engine and the longest until December 23, 3043, with the length of maximum eclipse of 11 minutes, 7.8 seconds, and the longest duration of 11 minutes, 10.7 seconds.
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Although no invertebrates have been identified as endangered or vulnerable, it is important to acknowledge that there are a plethora of invertebrates within the Cape Byron Marine Park which are critical to the health of the local ecosystems. These include a variety of molluscs such as the gold ring cowries (Cypraea annulus), Crustaceans such as the Zebra Shrimp (Ganthophylum americanum) and a specimen of the seven armed sea star (Luidia australiae). These Invertebrates have been noted as they are not usually found in areas and climates such as the Cape Byron Marine Park. The Zebra Shrimp and the seven armed sea star are rarely found in intertidal habitats and the gold ring cowries share a tropical affinity and demonstrate a rare occurrence in which the Cape Byron Marine Park is a habitat for both temperate and tropical species.
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The curling stone (also sometimes called a rock in North America) is made of granite and is specified by the World Curling Federation, which requires a weight between , a maximum circumference of and a minimum height of . The only part of the stone in contact with the ice is the running surface, a narrow, flat annulus or ring, wide and about in diameter; the sides of the stone bulge convex down to the ring and the inside of the ring is hollowed concave to clear the ice. This concave bottom was first proposed by J. S. Russell of Toronto, Ontario, Canada sometime after 1870, and was subsequently adopted by Scottish stone manufacturer Andrew Kay. The granite for the stones comes from two sources: Ailsa Craig, an island off the Ayrshire coast of Scotland, and the Trefor Granite Quarry in Wales.
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As a result of the juxtaposition of circles, the central circle surrounded by large circles appears smaller than the central circle surrounded by small circles. Recent work suggests that two other critical factors involved in the perception of the Ebbinghaus illusion are the distance of the surrounding circles from the central circle and the completeness of the annulus, which makes the illusion comparable in nature to the Delboeuf illusion. Regardless of relative size, if the surrounding circles are closer to the central circle, the central circle appears larger and if the surrounding circles are far away, the central circle appears smaller. While the distance variable appears to be an active factor in the perception of relative size, the size of the surrounding circles limits how close they can be to the central circle, resulting in many studies confounding the two variables.
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Because of a robust poleward outflow channel into the mid-latitude westerlies to the north, the eye became clearer and was surrounded by a symmetric annulus of intense convection; the JMA also indicated the brief intensification at noon. Moreover, a slight break in the steering and the zonal flow along the southern periphery of the mid-latitude trough lacked the dynamics to influence Hagupit, making the typhoon move westward very slowly. Outflow in the southeast quadrant got hampered due to subsidence associated with an upper-level trough, resulting in a cloud-filled eye again. Thus, Hagupit weakened further, causing the JTWC to downgrade it to a typhoon early on 6 December. At 21:15 PST (13:15 UTC), Typhoon Hagupit made landfall over Dolores, Eastern Samar, with the 10-minute maximum sustained winds of 165 km/h (105 mph).
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Forewing pale ochreous, usually washed with pale brown; a black-brown streak on inner margin before inner line; inner and outer lines fine and double, conversely lunulate edentate on the veins; a dark brown or pale brown median shade, enlarged, like the inner line, on the costa into a cloud; orbicular stigma pale, brown edged: reniform with brown lunular centre and white annulus, constricted at middle; terminal area brown, traversed close to termen by the paler subterminal line which forms a pale spot at apex; fringe mottled brown and ochreous; hindwing ochreous washed with grey or fuscous; — in ab. abbreviata Haw. the ground colour is pale ochreous without the brownish suffusion; in hammoniensis Sauber the costal and terminal dark areas are intensified, and the whole wing is suffused with greyish fuscous; in the Japanese form, however, ab. subbrunnea ab. nov.
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The forewings are rufous suffused with dark brown, the costal area bright rufous except towards the base, with three small black spots on the costa towards the apex. The antemedial line is black-brown, angled outwards below the costa, excurved below the cell and angled inwards above the inner margin, defined on inner side by whitish below the cell. There is a small black annulus in the upper part of the middle of the cell and a discoidal figure-of-eight shaped mark, its upper and lower parts filled in with rufous, the rufous from the costa extending into the cell before it. The postmedial line is black-brown defined on the outer side by whitish, strong and obliquely downcurved to vein 6, then excurved and minutely dentate to vein 2 where it is retracted to below the angle of the cell and bent outwards below the submedian fold.
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One description of the types of simple-closed curves that may appear on the surface of the Klein bottle is given by the use of the first homology group of the Klein bottle calculated with integer coefficients. This group is isomorphic to Z×Z2. Up to reversal of orientation, the only homology classes which contain simple-closed curves are as follows: (0,0), (1,0), (1,1), (2,0), (0,1). Up to reversal of the orientation of a simple closed curve, if it lies within one of the two crosscaps that make up the Klein bottle, then it is in homology class (1,0) or (1,1); if it cuts the Klein bottle into two Möbius strips, then it is in homology class (2,0); if it cuts the Klein bottle into an annulus, then it is in homology class (0,1); and if bounds a disk, then it is in homology class (0,0).
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The DTB crystallizer (see images) has an internal circulator, typically an axial flow mixer – yellow – pushing upwards in a draft tube while outside the crystallizer there is a settling area in an annulus; in it the exhaust solution moves upwards at a very low velocity, so that large crystals settle – and return to the main circulation – while only the fines, below a given grain size are extracted and eventually destroyed by increasing or decreasing temperature, thus creating additional supersaturation. A quasi-perfect control of all parameters is achieved as DTF crystallizers offer superior control over crystal size and characteristics. This crystallizer, and the derivative models (Krystal, CSC, etc.) could be the ultimate solution if not for a major limitation in the evaporative capacity, due to the limited diameter of the vapour head and the relatively low external circulation not allowing large amounts of energy to be supplied to the system.
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The species now known as Leucopholiota decorosa was first described by Charles Peck in 1873, based on a specimen he found in New York State; he placed it in Tricholoma, then considered a subgenus of Agaricus. In 1947, Alexander Smith and Walters transferred the species into the genus Armillaria, based on its apparent close relationship to Armillaria luteovirens; the presence of clamp connections in the hyphae, the amyloid spores, and the structure of the veil and its remnants. The genus Armillaria, as it was understood at the time, would later be referred to as a "taxonomic refugium for about 270 white-spored species with attached gills and an annulus." Smith later transferred the species to the genus Tricholomopsis; however, he neglected the amyloid spores, the recurved scales of the cap cuticle, and the lack of cells known as pleurocystidia, features which should have ruled out a taxonomic transfer into the genus.
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Slow pump pressure is the circulating pressure (pressure used to pump fluid through the whole active fluid system, including the borehole and all the surface tanks that constitute the primary system during drilling) at a reduced rate. SPP is very important during a well kill operation in which circulation (a process in which drilling fluid is circulated out of the suction pit, down the drill pipe and drill collars, out the bit, up the annulus, and back to the pits while drilling proceeds) is done at a reduced rate to allow better control of circulating pressures and to enable the mud properties (density and viscosity) to be kept at desired values. The slow pump pressure can also be referred to as "kill rate pressure" or "slow circulating pressure" or "kill speed pressure" and so on.Oil and Gas glossary, "Circulate", "Oil and Gas Field Technical Terms Glossary".
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On 6 June 1844 he was elected a Fellow of the Society. He had then nearly completed at his private press a small volume (in a limited edition of only 36 copies) entitled Vice-Comites Norfolciae, or Sheriffs of Norfolk from the first year of Henry the Second to the fourth of Queen Victoria. On 24 February 1846 he submitted to the inspection of the Society of Antiquaries a series of drawings representing seals in the archives of Stow Hall, and afterwards had them engraved at his own expense, the first series in 1847, under the title of Sigilla Antiqua, and a second series in 1862.Herald and Genealogist, vol. 4, pp. 410–24. In 1859 he exhibited to the Society, also from Stow Bardolph, a roll entitled Magnus Annulus, a sort of calendar extending from 1286 to 1817, and containing genealogical notices of the Hare family.
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The paper considers that the number of habitable planets may fluctuate wildly with time due to the unpredictable timing of catastrophic events, thereby creating a punctuated equilibrium in which habitable planets are more likely at some times than at others. Based on the results of Monte Carlo simulations on a toy model of the Milky Way, the team found that the number of habitable planets is likely to increase with time, though not in a perfectly linear pattern. Subsequent studies saw more fundamental revision of the old concept of the galactic habitable zone as an annulus. In 2008, a study by Nikos Prantzos revealed that, while the probability of a planet escaping sterilization by supernova was highest at a distance of about 10 kpc from the galactic center, the sheer density of stars in the inner galaxy meant that the highest number of habitable planets could be found there.
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The forewings are pale yellow with two black points on the base of the costal area followed by a curved line, then a series of black points. There is an oblique slightly waved antemedial line, followed by a brown annulus from the costa to the median nervure and another below the cell. There is a brown bar from the costa to the lower angle of the cell and a waved postmedial line bent outwards between veins 6 and 2, then retracted to below the angle of the cell and oblique to the inner margin and with a waved line across its sinus between veins 6 and 2, and an oblique bar from it at vein 2 to the tornus. There is also a waved subterminal line from the costa to vein 5 connected with the termen by a brown patch between veins 6 and 5.
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Upon admission into the Order of Merit of the Police Forces, members are gifted various insignia of the organization, though these remain property of the Crown. The badges are similar in design to those of the Order of Military Merit, consisting of a dark blue enamelled cross pattée with four equal arms, at the centre of which is a disc bearing a maple leaf on a white enamel background, surrounded at its edge by a red enamel ring (annulus) bearing the words MERIT • MÉRITE • CANADA. Slight differences in appearance represent each grade: for Commanders, the emblem is gilt with a red enamel maple leaf in the gold central disk; for Officers, it is gilt with a gold maple leaf; and for Members, both the badge itself and the maple leaf are silver. The reverse bears only a serial number, and all are topped by a St. Edward's Crown, symbolizing that the order is headed by the sovereign.
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As the ventricle relaxes, the annulus moves towards the base of the heart, signifying the volume expansion of the ventricle. The peak mitral annular velocity during early filling, e' is a measure of left ventricular diastolic function, and has been shown to be relatively independent of left ventricular filling pressure.Rodriguez L, Garcia M, Ares M, Griffin BP, Nakatani S, Thomas JD. Assessment of mitral annular dynamics during diastole by Doppler tissue imaging: comparison with mitral Doppler inflow in subjects without heart disease and in patients with left ventricular hypertrophy. Am Heart J. 1996 May;131(5):982-7Sohn DW, Chai IH, Lee DJ, Kim HC, Kim HS, Oh BH, Lee MM, Park YB, Choi YS, Seo JD, Lee YW, although not entirelyPelà G, Regolisti G, Coghi P, Cabassi A, Basile A, Cavatorta A, Manca C, Borghetti A. Effects of the reduction of preload on left and right ventricular myocardial velocities analyzed by Doppler tissue echocardiography in healthy subjects.
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The WFEs stand in some opposition to another type of back exercises, devised by Robin McKenzie (b. 1931) and known as the “McKenzie extension exercises”, which involve the opposite motion of extending the spine backwards. (One review stated that “Perhaps no two methods of physical therapy treatment for low back pain are so contradictory in both theory and practice”Ponte, et al (1984), Op. cit.) In contrast to Williams, McKenzie suggested that all spinal pain can be attributed to alteration of the position of the disc's nucleus pulposus, in relationship to the surrounding annulus; mechanical deformation of the soft tissue about the spine which has undergone adaptive shortening; or mechanical deformation of soft tissue caused by postural stress. McKenzie concluded that a continually flexed lifestyle may cause the nucleus to migrate more posteriorly, resulting in low back pain. Moreover, these anomalies of the lumbar spine are largely due to our modern lifestyle and “an almost universal loss of extension”.
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As a journalist in the parliamentary press gallery in Ottawa in the late 1980s and early 90s, Hicks strategically recast the change as something worth doing to commemorate the 25th Anniversary of the Order of Canada in 1992, an idea that was endorsed by the Advisory Committee on the Order of Canada. It took until 1994 for the Queen to approve the new design for general use, though the Canadian Heraldic Authority began to allow for its limited use beginning in 1987, where the arms were used to represent the Queen personally on letters patent granting new arms for distinguished Canadians. These letters patent carried the shield from the royal arms along with the annulus behind the shield bearing the motto of the Order of Canada—Desiderantes meliorem patriam. As soon as royal approval was forthcoming, the full achievement was redesigned for use by the federal government within the Federal Identity Program.
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Sources can include broken or leaky well casings (either at abandoned wells or unused, but not properly abandoned, wells) or lateral migration through the geological formations in the subsurface before being emitted to groundwater or atmosphere. Broken or leaky well casings are often the result of geochemically unstable or brittle cement. One researcher proposes 7 main paths for gas migration and surface casing vent flow: (1) between the cement and adjacent rock formation, (2) between the casing and encompassing cement, (3) between the casing and the cement plug, (4) directly through the cement plug, (5) through the cement between casing and adjacent rock formation, (6) through the cement between linking cavities from the casing side of the cement to the annulus side of the cement, and (7) through shears in the casing or well bore. Leakage and migration can be caused by hydraulic fracturing, although in many cases the method of fracturing is such that gas is not able to migrate through the well casing.
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Mytilus edulis on a hard substrate Between the effect that temperature has on Mg:Ca ratios as well as on solubility and saturation state of calcite and aragonite, it is clear that short- or long-term temperature variations can influence the deposition of calcium carbonate by altering seawater chemistry. The impact that these temperature-induced chemical changes have on shell deposition has been repeatedly demonstrated for a wide array of organisms that inhabit estuarine and coastal systems, highlighting the cumulative effect of all temperature- influenced factors. A live Monetaria annulus The blue mussel Mytilus edulis is a major space occupier on hard substrates on the east coast of North America and west coast of Europe, and the calcification rate of this species increases up to five times with rising temperature. Eastern oysters and crustose coralline algae have also been shown to increase their calcification rates with elevated temperature, though this can have varied effects on the morphology of the organism.
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The wingspan is . Forewing dull dark brown, faintly reddish- tinged; the veins powdered with grey scales; the terminal area beyond subterminal line black- brown, except at apex: median area between subcostal vein and vein 1 somewhat darker than the rest of wing; inner and outer lines indistinctly double: the inner outwardly oblique, the outer bent on vein 5; claviform stigma hardly visible; orbicular stigma oblique, elliptical, of the ground colour, with paler annulus; the reniform white or dull yellow, containing a double dark lunule with pale centre; the outer edge of this dark inner lunule is sometimes obsolete, in which case the stigma appears more solidly yellowish or white; the space between outer and subterminal lines is always slightly, often visibly, paler than the ground colour; hindwing fuscous grey; — in the ab. lunina Haw. the outer fascia is conspicuously paler, becoming pale brown or pinkish ochreous, the median vein and veins 3, 4 at their base are white, and both stigmata are more strongly marked; ab.
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The wingspan is about 20 mm. The forewings are grey-whitish, irregularly sprinkled grey and with a small blackish mark on the costa at one-fifth, where a very oblique series of three cloudy blackish-grey dots meets, in the disc, a double incurved blackish-grey line terminating on the dorsum at one-third. A second blackish mark is found on the costa before the middle, where a very oblique series of four dots meets in the disc a rather incurved line running to near the dorsum at four-fifths, preceded by two or three blackish-grey marks near the dorsum, and a blackish annulus in the disc open beneath and connected with the preceding line by a streak of blackish-grey suffusion. There is also a suffused dark grey excurved shade from a triangular costal spot at two-thirds to the dorsum before the tornus, and another darker but less thick between this and the termen.
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There are few small inflated cells, which are mostly spherical to broadly elliptic. The tissue of the stipe is made of abundant, sparsely branched, filamentous hyphae, without clamps, measuring 2–5 μm in diameter. The inflated cells are club-shaped, longitudinally oriented, and up to 2–3 by 15.7 μm. The annulus is made of abundant moderately branched filamentous hyphae, measuring 2–6 μm in diameter. The inflated cells are sparse, broadly elliptic to pear-shaped, and are rarely larger than 31 by 22 μm. Pleurocystidia and cheilocystidia (cystidia found on the gill faces and edges, respectively) are absent, but there may be cylindrical to sac-like cells of the partial veil on the gill edges; these cells are hyaline and measure 24–34 by 7–16 μm. Development of basidia, as illustrated by Lewis in 1906In 1906 Charles E. Lewis studied and illustrated the development of the basidia in order to compare the nuclear behavior of the two-spored with that of the four-spored forms.
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In astrobiology and planetary astrophysics, the galactic habitable zone is the region of a galaxy in which life might most likely develop. The concept of a galactic habitable zone analyzes various factors, such as metallicity (the presence of elements heavier than hydrogen and helium) and the rate of major catastrophes such as supernovae, and uses these to calculate which regions of a galaxy are more likely to form terrestrial planets, initially develop simple life, and provide a suitable environment for this life to evolve and advance. According to research published in August 2015, very large galaxies may favor the birth and development of habitable planets more than smaller galaxies such as the Milky Way. In the case of the Milky Way, its galactic habitable zone is commonly believed to be an annulus with an outer radius of about and an inner radius close to the Galactic Center (with both radii lacking hard boundaries).
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Eisenmann secured a U.S. design patent for his design, which he described as "a triangular forked or swallow-tailed flag corresponding to the shape generally known as a 'cavalry-guidon' or 'broad pennant.'" (US D34810 S via Google Patents) In 1902, State Representative William S. McKinnon, a member of the Ohio Pan-American Exposition Commission, introduced House Bill 213 designating Eisenmann's design as the official flag. It became law on May 9, making it the 20th U.S. state flag or banner. (Eisenmann had assigned his patent, which had a term of three and a half years, to the State of Ohio on April 24.) The Ohio Building at the 1901 Pan- American Exposition Because Eisenmann's design deviated from the "seal on a bedsheet" design then nearly universal among state flags, the press looked overseas for precedents: the layout was likened to either the flag of Cuba or of the Philippines, while the red and white annulus was derided for its similarity to the sun on the Japanese flag.
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The Royal Canadian Infantry Corps () is the infantry corps of the Canadian Army and includes regular and reserve force regiments. Originally formed as the Canadian Infantry Corps on 2 September 1942 to encompass all existing infantry regiments, including regiments of foot guards, in the Canadian Army. The corps was granted its "royal" designation in 1947 and was designated Royal Canadian Infantry Corps 30 April 1947, to be redesignated The Royal Canadian Infantry Corps 22 March 1948, and revert to Royal Canadian Infantry Corps 17 February 1964. The badge of the Royal Canadian Infantry Corps consists of Argent three maple leaves conjoined on one stem within an annulus Gules fimbriated and inscribed INFANTRY • in letters Or, the whole ensigned by the Royal Crown proper set above a scroll Or inscribed with the Motto in letters Sable and surmounted by two rifles in saltire Or. The three maple leaves conjoined on one stem, taken from the Royal Arms of Canada, represent service to Canada, and the Crown, service to the sovereign.
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The wingspan is 35–40 mm. Forewing grey speckled with darker, and more or less tinged with brown; the veins dark; inner and outer lines double, dark filled in with pale ground colour, conversely lunulate-dentate; the inner line sometimes forming a sharp outward angle below vein 1, meeting the median line, sometimes rounded ami remote from it: claviform brown, darker edged, variable in size, often quite small; orbicular and reniform pale with dark centres, the latter with white dotted annulus and often followed by a pale patch; marginal area dark grey beyond the pale submarginal line, which is preceded by brownish patches at costa and on both folds: hindwing dirty whitish, with darker cellspot, veins, and outer line, the terminal area diffusely fuscous, with the submarginal line showing paler along termen; in typical sordida the brown tints are confined to the two folds: -in anceps Hbn. these brown tints pervade more or less the whole forewing: - ochracea Tutt has the ground colour paler and the suffusion more rufous brown; renardii Bsd. is a very pale form with the markings subobsolete; while engelhartii Duurloo represents a renardii pale form from eastern Jutland with indistinct markings; - ab.
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Once Typhoon Vongfong entered the Philippine Area of Responsibility shortly after 06:00 UTC on October 7, the PAGASA named it Ompong. The system started to undergo rapid deepening early on that day, owing to low vertical wind shear and multiple outflow mechanisms including a TUTT cell positioned to the east. The JTWC upgraded it to a super typhoon at noon, as the system had formed a 40 km (25 mi) round eye surrounded by a symmetric annulus of intense convection. Vongfong reached peak intensity six hours later, when the system's T-number of the Dvorak technique had increased to 7.5 according to both of the JMA and the JTWC, becoming the first tropical cyclone to reach that status since Haiyan in 2013. As the result, the JMA indicated that the maximum ten-minute sustained winds had increased to 215 km/h (130 mph) and the system's atmospheric pressure had dropped to 900 hPa (26.58 inHg). The JTWC also indicated that Vongfong had become equivalent to a Category 5 hurricane on the Saffir–Simpson hurricane wind scale, with maximum one-minute sustained winds at 285 km/h (180 mph).
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Non- hydrocarbons such as carbon dioxide, nitrogen, helium (rarely), and hydrogen sulfide must also be removed before the natural gas can be transported. Natural gas extracted from oil wells is called casinghead gas (whether or not truly produced up the annulus and through a casinghead outlet) or associated gas. The natural gas industry is extracting an increasing quantity of gas from challenging resource types: sour gas, tight gas, shale gas, and coalbed methane. There is some disagreement on which country has the largest proven gas reserves. Sources that consider that Russia has by far the largest proven reserves include the US CIA (47 600 km³), the US Energy Information Administration (47 800 km³),US Energy Information Administration, International statistics, accessed 1 December 2013. and OPEC (48 700 km³). However, BP credits Russia with only 32 900 km³, which would place it in second place, slightly behind Iran (33 100 to 33 800 km³, depending on the source). With Gazprom, Russia is frequently the world's largest natural gas extractor. Major proven resources (in cubic kilometers) are world 187 300 (2013), Iran 33 600 (2013), Russia 32 900 (2013), Qatar 25 100 (2013), Turkmenistan 17 500 (2013) and the United States 8500 (2013).
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He was Science Master at Clifton College, Bristol (1877, 1880-1884) and then Headmaster at the Royal Naval Engineering College, Devonport. In June 1893 he was elected a Fellow of the Royal Society. His candidacy citation read: > Head Master and Professor of Physics, Royal Naval Engineering College, > Devonport. Distinguished as a physicist, especially for his researches on > surface tension and on the stretching of liquids. Author of the following > papers: - 'On the Forms assumed by Drops of Liquid falling Vertically on a > Horizontal Plate' (Proc Roy Soc, 1876-1877); 'On the Spontaneous > Segmentation of a Liquid Annulus' (ibid, 1879); 'On Pendent Drops' (ibid, > 1881); 'On Impact with a Liquid Surface' (ibid, 1882); 'On the Horizontal > Motion of Floating Bodies under the Action of Capillary Forces' (Phil Mag, > 1883); On the Surface Forces in Fluids' (ibid, 1884); 'On the Error involved > in Prof Quincke's Method of Calculating Surface Tensions from the Dimensions > of Flat Drops and Bubbles' (ibid, 1885); 'A Capillary Multiplier' (ibid); > 'On Tensional Stress and Strain within a Liquid' (Brit Assoc, Sect A, 1888); > 'On the Discharge of Electrification by Flames' (Brit Assoc, Rept > Electrolysis Comm, 1889); 'on the Mechanical Stretching of Liquids, an > Experimental Determination of the Volume-Extensibility of Ethyl Alcohol' > (read before the Roy Soc, Feb 4, 1892).
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