104 Sentences With "agglomerates" | Random Sentence Generator

Agglomerates are typically poorly sorted, may contain a fine ash or tuff matrix and vary from matrix to clast support. They may be monolithologic or heterolithic, and may contain some blocks of various igneous rocks. There are various differences between agglomerates and ordinary ash beds or tuffs. Agglomerates are coarser and less frequently well-bedded.

Particle agglomerates defined as "hard agglomerates" are more difficult to redisperse to the initial single particles. In the course of agglomeration, the agglomerates will grow in size, and as a consequence they may settle to the bottom of the container, which is referred to as sedimentation. Alternatively, a colloidal gel may form in concentrated suspensions which changes its rheological properties. The reverse process whereby particle agglomerates are re-dispersed as individual particles, referred to as peptization, hardly occurs spontaneously, but may occur under stirring or shear.

Different aerosolization and deagglomeration systems have been established to test stability of nanoparticle agglomerates.

Stability of nanoparticle agglomerates is critical for estimating size distribution of aerosolized particles from nano- powders or other sources. At nanotechnology workplaces, workers can be exposed via inhalation to potentially toxic substances during handling and processing of nanomaterials. Nanoparticles in the air often form agglomerates due to attractive inter-particle forces, such as van der Waals force or electrostatic force if the particles are charged. As a result, aerosol particles are usually observed as agglomerates rather than individual particles.

Equipment is straight forward and common. This type of agglomeration results in relatively dense and spherical agglomerates.

This increase in particle size makes collection easier. 3\. Gas-liquid separation - Regardless of the contact mechanism used, as much liquid and dust as possible must be removed. Once contact is made, dust particulates and water droplets combine to form agglomerates. As the agglomerates grow larger, they settle into a collector.

Visual Representation of the Wet Granulation Process in Mechanical Mixing # Pan or disk agglomerators (rarely used for food powders): Pan or disk agglomerators use the rotation of a disk or bowl to agitate the powder as it is sprayed with water. This type of agglomeration creates agglomerates with higher density than agglomerates produced in fluidized beds. # Drum agglomerators: use a drum to agitate the powder as liquid is added via spraying along the drum. This is a continuous process, and the agglomerates are spherical due to the rotation of the drum.

Some companies import boulders themselves to crush into agglomerates (stone powders) of various grain size for their products, others simply buy already-crushed stone powders.

To agglomerate, fully dried particles (collected from the dry air outlet) are re-introduced at the point where the particles are partly dried and still sticky, to collide and create porous agglomerates. Spray drying agglomeration creates irregularly shaped, highly porous particles with excellent instant properties. #Fluid bed agglomeration uses an air stream to both agitate the particles and to dry the agglomerates. Fluidized bed dryers are hot-air driers in which the air is forced up through a layer of product.

The foremost blairmorite occurrence is the Crowsnest Formation in the Canadian province of Alberta where it is associated with agglomerates and tuffs from explosive eruptions. The other locality is the Lupata Gorge in Mozambique.

View along The Whangie from the south. The Kilpatrick Hills are a part of the Clyde Plateau Lavas. These are about 340 million years old. Basaltic types of rocks (lavas, tuffs and agglomerates) predominate here.

The five-roll mill incorporates four successively smaller in-running nips and hence, compared to the three-roll mill, allows the use of larger agglomerates as part of the input material- but is correspondingly more complicated and expensive.

During the cooking, she returned permanently to prevent it agglomerates. This cassava flour (farinha de mandioca in Brazil) now takes the name of quack. Absorbent, it replaces the bread. It can be eaten alone, in salads, grilled fried or in gratin.

The Kerichawa Valley Tuff series is a group of pumice-rich trachytic tuffs and agglomerates. They are younger than the Nairobi Trachyte, found in Nairobi as part of the sediments that were deposited due to formation of the Rift valley.

S. Froeschke, S. Kohler, A.P. Weber & G. Kasper (2003). Impact fragmentation of nanoparticle agglomerates. Journal of Aerosol Science, 34(3), 275–287. A standard deagglomeration testing procedure could be foreseen with the developments of the different types of existing systems.

The "as-received" or "as-generated" properties refer to the material's state when received from the manufacturer or synthesized in the laboratory. The "as-dosed" or "as-exposed" properties refer to its state when administered to the biological system. These may differ from the "as-received" state due to formation of aggregates and agglomerates if the material has been in powder form, the settling out of larger aggregates and agglomerates, or loss by adhesion to surfaces. The properties may again be different at the point of interaction with the organism's tissues due to biodistribution and physiological clearance mechanisms.

Crystals of melanite, a variety of andradite garnet.Pyroclastic rocks of the Crowsnest Formation. Photo by C.W. Langenberg, courtesy of Alberta Geological Survey.The formation contains pyroclastic flows, lahars, agglomerates, tuffs and ash-fall deposits, as well as volcanic-rich sandstones and other sediments.

C. Conesa et al. (2004) "Characterization of Flow Properties of Powder Coatings Used in the Automotive Industry" Kona, Vol.22, pp 94-106.S.L. Rough, D.I. Wilson and D.W. York (2005) "Effect of solids formulation on the manufacture of high shear mixer agglomerates" Adv.

Closer to the Newport–Inglewood fault zone, garnet- bearing schists and metagabbros occur. The Santa Monica Slate can be observed in the northwestern block of the basin. The eastern complex is characterized by Santiago Peak Volcanics. This rock unit contains andesitic breccias, flow, agglomerates and tuffs.

The ice sheet starts melting in late May-early June, creating fragmented ice agglomerates on the north-west and south-east and often revealing remains of the mammoths. The ice formation varies from year to year, with the sea either clear or completely covered with ice.

Rocks assigned to the Cheviot Volcanic Formation, itself within the Reston Group, straddle the border with Scotland. This thick pile (over 1000m) of andesitic lavas was erupted during the early Devonian. The sequence includes rhyolites, agglomerates and tuff. The Cheviot Pluton is a mass of Devonian granite.

Beta, a smaller cone formed by lava and scoria, grew on the southeastern side of Alpha. It ejected lava bombs with sizes of up to that landed in the surrounding valleys. Beta is partially degraded, high and has a wide crater. Gamma is formed by agglomerates.

Although Koh-i-Sultan is considered dormant or extinct, ongoing fumarolic activity has been recorded. The volcano consists of agglomerates, flows and tuff. Lava flows make up about 10 percent of the volcanic pile, and the remainder is volcaniclastic material. Other layers alternate between ash, lava and pyroclastic flows.

Sinter roasting involves heating the fine ores at high temperatures, where simultaneous oxidation and agglomeration of the ores take place. For example, lead sulfide ores are subjected to sinter roasting in a continuous process after froth flotation to convert the fine ores to workable agglomerates for further smelting operations.

Because the poorly indurated agglomerates are subject to rapid erosion the cone's structure has been heavily degraded. It is high with no recognizable crater and a base size of . Volcanic activity has generated lava flows that fill a valley. These flows cover a surface area of and reach a length of .

Weeksite was first described in 1960 for an occurrence on Topaz Mountain, Thomas Range, Juab County, Utah. Weeksite occurs within small "opal" veins within rhyolite and agglomerates, and as encrustations in sandstones and limestones. It occurs associated with opal, chalcedony, calcite, gypsum, fluorite, uraninite, thorogummite, uranophane, boltwoodite, carnotite and margaritasite.

Pyroclastic plateaus are produced by massive pyroclastic flows and they are underlain by pyroclastic rocks: agglomerates, tephra, volcanic ashes cemented into tuffs, mafic or felsic. Pyroclastic plateaus are also called ignimbrite plateaus. Examples include Shirasu-Daichi which covers almost all of Southern Kyūshū, Japan and the North Island Volcanic Plateau in New Zealand.

Explosive eruptions during this stage of activity deposited basalt agglomerates, ash fall and ash flow tuffs. Peralkaline felsic lava flows reached long and thick. The eruptive products of the bimodal stratovolcano stage cover an area roughly long and wide. Peralkalinity had remarkable effects on lava morphology and mineralogy during the bimodal stratovolcano stage.

In a technical sense, the advantage of the HIsarna process is that it removes the step of creating iron ore agglomerates and coke to create a porous burden for the blast furnace. In the traditional process one cannot use powdered coal alone since the strength of the coke is required to support the burden. By comparison, in HIsarna, the powder form of the coal and ore are an advantage because the increased surface area improves the speed and quality of the reduction reaction in the cyclone. The main advantages of the process are derived from those mentioned above, however: the fact that the separate steps of creating ore agglomerates and cokes disappear from the process makes the process more energy efficient and reduces its carbon footprint.

They comprise dikes, welded tuffs, pitchstones, volcanic plugs, laccoliths and flows. Trachybasalts are in the form of two textural types: phenocryst-rich lava flows and fragmental flow agglomerates. Phonolites are vesicular and pumiceous in nature, although phonolites with trachytic texture are also present. Trachytes and peralkaline trachytes are the primary volcanic rocks in the Level Mountain Range.

The fuel is fluidized in oxygen and steam or air. The ash is removed dry or as heavy agglomerates that defluidize. The temperatures are relatively low in dry ash gasifiers, so the fuel must be highly reactive; low-grade coals are particularly suitable. The agglomerating gasifiers have slightly higher temperatures, and are suitable for higher rank coals.

Balabusic et al., 2001, p.25 The sediments were deposited under uniform climatic conditions with temperate to warm temperatures and high humidity.Balabusic et al., 2001, p.28 Other facies recognized in the formation are alluvial fan deposits with thin tuffaceous beds and conglomerates, covered by a section of basaltis and other volcanic agglomerates and eolian sandstones.Caselli, 1998, p.

In contrast, pigment-grade TiO2 usually has a median particle size in the 200–300 nm range. Because TiO2 powders contain a range of sizes, they may have a fraction of nanoscale particles even if the average particle size is larger. In turn ultafine particles usually form agglomerates and particle size could be much larger than crystal size.

When coal is burnt, the incombustible clay particles are left behind as ash. In grate boilers, incombustible ash agglomerates as cinders through prolonged residential time. Nowadays, pulverised coal technology is preferred due to its improved energy-efficiency. In this case, the ground clay escapes along with flue gases, settling as ash in bag filters or electro static precipitators (ESPs).

The product leaves the heat exchanger via the discharge bottom and a funnel. The funnel can be equipped with a collecting screw conveyor if necessary. This does not affect the moving bed. A roof- shaped protecting screen can be installed above the heat exchanger modules to keep out agglomerates and impurities that cannot pass safely through the tube packages.

Other rocks are agglomerates, limestone and tuff, and the Cretaceous rocks are mainly andesitic. The monzonitic Chagai intrusions are accompanied by other intrusions with additional minerals. Other formations are the mostly sedimentary Humai formation of the late Cretaceous and the probably Paleocene Jazzak formation. The Chagai topography is dominated by a sand-covered plain, rising to an altitude of .

The Strand Fiord Formation on west-central Axel Heiberg Island, Nunavut consists mainly of basaltic lava flows and agglomerates. Souther established a type section for this formation near the western tip of the Kanguk Peninsula. The overlying Kanguk Formation was named after its locality. It comprises dark grey shale and siltstone with subordinate sandstone and some local thin bentonitic and tuffaceous beds.

Agglomerates can be non-welded or welded, such as coarse basaltic 'spatter'. They typically form proximally during Strombolian eruptions, and are common at strongly peralkaline volcanoes. Some large agglomerate deposits are deposited from pyroclastic density currents during explosive caldera-forming eruptions, such as at Santorini, Taal, and Campi Flegrei. They may be massive to crudely bedded, and can attain great thicknesses.

Wet agglomeration is a process that introduces a liquid binder to develop adhesion forces between the dry particles to be agglomerated. Mixing disperses the liquid over the particles evenly and promotes growth of the aggregate to the desired size. A final drying step is required to stabilize the agglomerates. In all wet agglomeration methods, the first step is wetting the particles.

M. Elimelech, J. Gregory, X. Jia, R. Williams, Particle Deposition and Aggregation: Measurement, Modelling and Simulation, Butterworth-Heinemann, 1998.. Scheme of particle agglomeration. Particles are dispersed individually in a functionally stable suspension, while they agglomerate in a functionally unstable suspension. As agglomeration proceed from early to later states, the agglomerates grow in size, and may eventually gel. Particle agglomeration can be a reversible or irreversible process.

The agglomeration process between particle and droplet continues in the diverging section of the venturi. The large agglomerates formed in the venturi are then removed by an inertial separator. Venturi scrubbers achieve very high collection efficiencies for respirable dust. Since efficiency of a venturi scrubber depends on pressure drop, some manufacturers supply a variable-throat venturi to maintain pressure drop with varying gas flows.

Titanostrombus galeatus dwells on rocky, sandy bottoms near mangrove areas. It lives in depths from the low tide mark to 15 m, but records go as deep as 30 m. During the beginning of the year, in the early months, L. galeatus exhibits a gregarious behavior, forming large agglomerates in shallow waters. This is due to the mating season, which is also when oviposition occurs.

The Puerto Rico Department of Public Safety (PR DPS) is the umbrella organization within the Executive branch of Puerto Rico that agglomerates the Puerto Rico Law Enforcement and Emergency Response agencies in the U.S. Commonwealth of Puerto Rico. The department was formed on April 10, 2017, when former governor Ricardo Rosselló signed the law to unify all safety agencies. All agencies are bureaus of the department.

Popigai diamonds are about 1 mm in size and consist of nanodiamond agglomerates. Most modern industrial diamonds are produced synthetically. The diamond deposits at Popigai have not been mined because of the remote location and lack of infrastructure, and are unlikely to be competitive with synthetic diamonds. Many of the diamonds at Popigai contain crystalline lonsdaleite, an allotrope of carbon that has a hexagonal lattice.

Australian Journal of Science 18, 145-151, also Loess Letter 54, www.loessletter.msu.edu. Parna is an aeolian deposit, like loess, but the particles are small clay mineral agglomerates. The material sources are dried up lakes and river floodplains. It has been described as calcareous red clay material, of aeolian origin, that blankets large parts of the Murrumbidgee and Murray River valleys. Cattle,S.R.,Greene,R.S.B.,McPherson,A.

The clastic beds overlay the TPG sediments, and are separated by angular unconformities. Overlying the MFF clastic sequence are the acidic volcanics of the Kenny Glacier Formation (KGF). This volcanic sequence is a 215 m thick group of rhyolite-dacite lavas, ignimbrites, tuffs, and agglomerates. The acidic dikes and sills which intrude the MFF and TPG sediments may be due to the KGF stratovolcano.

Agglomerates or volcanic beccias are developed in some areas of the quarry. E.g. in the south-western portion near the access road. This lithology is readily distinguished from the latite by its chaotic appearance and light- coloured matrix. A capping of cream-coloured weathered latite, still retaining the characteristic porphyritic texture, may be studied at the top of the northern and western quarry faces.

Dry granulation processes create granules by light compaction of the powder blend under low pressures. The compacts so-formed are broken up gently to produce granules (agglomerates). This process is often used when the product to be granulated is sensitive to moisture and heat. Dry granulation can be conducted on a tablet press using slugging tooling or on a roll press called a roller compactor.

His vitreous enamel agglomerates had the appearance of precious stones with strange tonalities.L'Interimédiaire des chercheurs et curieux, 7 May 1901 Some of his masks, such as the one of Maurice Rollinat, are made of multicolored wax. He reproduced all of his works as engravings. Much of his work was inspired by music, including a series of nine allegorical statues representing the symphonies of Beethoven.

There is also evidence of southeastern migration of the craters of Taftan, with Anjerk and Sardarya being more westerly vents. These preceding centres have left andesitic lava flows that are partially dissected and agglomerates. The existence of a caldera at Taftan has been inferred. The table mountain Takht- i-Rostam south of Taftan may be the remnant of a basalt extrusion, but it doesn't appear to be related to Taftan.

Cooling changes the effect of collision from coalescence to agglomeration. LF-FSP's rapid drop in temperature as the particles exit the flame prevents the formation of aggregate. Definition of aggregate and its detrimental effect is discussed in advantages section. Collisions that take place after the temperature drop result in agglomerates, in which particles bond weakly by Van der Waals forces, and they can be separated easily with ultrasonication or ball-milling.

The first evidences of the originary built-up area of Grignano are documented by some papers of 938, related to a donation by the marquess Almerico and his wife Franca, in which they left all the possessions in the territory of Adria, the latters contained the village of Gragnano (the actual Grignano), together with other small agglomerates like Arquà Polesine, Borsea and Crespino, still present in the Polesine.

Another disadvantage is that the amount of energy used to sieve the sample is arbitrarily determined. Over-energetic sieving causes attrition of the particles and thus changes the PSD, while insufficient energy fails to break down loose agglomerates. Although manual sieving procedures can be ineffective, automated sieving technologies using image fragmentation analysis software are available. These technologies can sieve material by capturing and analyzing a photo of material.

Indore district is divided into 39 police stations and seven police outposts. Indore is also a seat for one of the two permanent benches of Madhya Pradesh High Court with Gwalior, the city, its agglomerates and other 12 districts of western Madhya Pradesh falls under the jurisdiction of Indore High Court. In May 2019, Shankar Lalwani of Bharatiya Janata Party had been elected as the Member of Parliament from Indore.

This issue is particularly prevalent in binder jetting, as unlike traditional additive manufacturing processes (which utilize high heat to melt and fuse powders together), the "jet" of binder that is dropped onto the bed can cause large agglomerates of semi-bonded powder to be ejected from the surface, leaving behind subsurface depletion zones (for 30 μm SS316 powder, a depletion zone depth of 56±12μm was observed). The growth of depletion zones as subsequent layers of powder are deposited printed can have major ramifications on the quality of parts printed with binder jetting. Ejected agglomerates land on other regions of the bed, causing the surface of the bed to become less even, the dimensions of the final part to be warped and inaccurate, and large subsurface pores to form. Residual defects and stress may also be present throughout, which reduce the strength of the already weaker part (due to the inherent porosity of the binder jetted part) .

The term dispersion also refers to the physical property of the degree to which particles clump together into agglomerates or aggregates. While the two terms are often used interchangeably, according to ISO nanotechnology definitions, an agglomerate is a reversible collection of particles weakly bound, for example by van der Waals forces or physical entanglement, whereas an aggregate is composed of irreversibly bonded or fused particles, for example through covalent bonds. A full quantification of dispersion would involve the size, shape, and number of particles in each agglomerate or aggregate, the strength of the interparticle forces, their overall structure, and their distribution within the system. However, the complexity is usually reduced by comparing the measured size distribution of "primary" particles to that of the agglomerates or aggregates.. When discussing suspensions of solid particles in liquid media, the zeta potential is most often used to quantify the degree of dispersion, with suspensions possessing a high absolute value of zeta potential being considered as well- dispersed.

In 2009, Pueblo Viejo Dominicana Corporation, formed by Barrick Gold and Goldcorp, started open-pit mining operations of the Monte Negro and Moore oxide deposits. The mined ore is processed with gold cyanidation. Pyrite and sphalerite are the main sulfide minerals found in the 120 m thick volcanic conglomerates and agglomerates, which constitute the world's second largest sulphidation gold deposit. Between Bonao and Maimón, Falconbridge Dominicana has been mining nickel laterites since 1971.

The California freshwater shrimp merely brush up the food with tufts at the tips of their small claws, and lift to their mouths the collected morsels. Colonized by algae, bacteria, fungi, and microscopic animals, the particle agglomerates are quite nutritious. Although most species of shrimp walk slowly about the roots as they feed, S. pacitica will undertake short swimming bursts to obtain particularly desirable items. Breeding occurs once per annum during the autumn.

The sintering response of the investigated powder was studied by careful microstructural observations using scanning electron microscopy and optical microscopy both in reflection and transmission. The key to this method is to keep porosity intergranular during pre-sintering, so that it can be removed subsequently by HIP treatment. It was found that agglomerates of closely packed particles are helpful to reach that purpose, since they densify fully and leave only intergranular porosity.Mouzon, J., et al.

Detackifiers reduce the tackiness of pitch-like materials or stickies so that they have less tendency to form agglomerates or deposit onto papermaking equipment or create spots in the product. Pitch is the common term for hydrophobic wood resin material found in the pulp. Resin is a common organic component of wood found in all trees. In paper making, the most widely used detackifier is talc, anionic dispersants, ethoxylated surfactants, and cellulose based detackifiers.

This initiates adhesion forces between the particles. The next step, nucleation, is the process by which the native particles come together and are held with liquid bridges and capillary forces. Then, through coalescence or the growth phase, these small groups of particles come together to create larger particles until the particles are the desired size. Consolidation occurs as the agglomerates increase in density and strength through drying and collisions with other particles.

In the area extending between Gümüşhane and Torul, there are extensive formations consisting of various types of extrusive, igneous rock, including andesitic and basaltic lavas, tuffs and agglomerates. The total thickness of these deposits reaches . These igneous strata are interleaved with sedimentary layers, varying in thickness between and consisting of limestone and certain other types of sedimentary rock. The Karaca Cave formed in one of these layers of highly fissured, massive limestone sandwiched between volcanics.

Particle agglomeration refers to formation of assemblages in a suspension and represents a mechanism leading to the functional destabilization of colloidal systems. During this process, particles dispersed in the liquid phase stick to each other, and spontaneously form irregular particle assemblates, flocs, or agglomerates. This phenomenon is also referred to as coagulation or flocculation and such a suspension is also called unstable. Particle agglomeration can be induced by adding salts or other chemicals referred to as coagulant or flocculant.

A volcanic suite of Eocene age occurs in the Freemans Cove area of Bathurst Island. It is confined to the Southeast Bathurst Fault Zone, consisting of sills, dikes, agglomeratic vents and small plugs. Most of the suite consists of nephelinite or larnite-normative nephelinites and basanites, with rarer olivine melilite nephelinite, phonolite and tholeiitic and alkali basalt rocks. Extensive erosion has removed all traces of lava flows but lava fragments, bombs and scoria occur as clasts within the agglomerates.

Pyroclastic rocks may be a range of clast sizes, from the largest agglomerates, to very fine ashes and tuffs. Pyroclasts of different sizes are classified as volcanic bombs, lapilli, and volcanic ash. Ash is considered to be pyroclastic because it is a fine dust made up of volcanic rock. One of the most spectacular forms of pyroclastic deposit are the ignimbrites, deposits formed by the high-temperature gas-and-ash mix of a pyroclastic flow event.

A major disadvantage of vapor-fed FSP is the formation of hard agglomerates in the gas phase. As a result, it leads to difficulties in producing high- quality, bulk materials. LF-FSP largely avoids this problem by limiting aggregation through rapid quenching. LF-FSP can be used to produce nanopowders in commercial quantities, while other nano-powder synthesis methods have low production rates. For example, hydrothermal processing of nanoparticles in supercritical water can produce nanopowders at a rate of 10–15 g/h.

They were separated by an ocean, called the Iapetus Ocean by geologists. The line of joining, or suture, is approximately under the Solway Firth and Cheviot Hills. In the Lake District, the junction between the early Ordovician series, Skiddaw Slate, and the Borrowdale Volcanic that was forced under it, can be seen on the slopes of Fleetwith Pike. In the English Lake District, the Borrowdale Volcanic Group is composed of lavas (mainly andesites), tuffs and agglomerates, along with some major igneous intrusions.

The dependence on Colonia Benitez is purely administrative, since the excellent communications and the size of the economies of Gran Resistencia and Gran Corrientes permit a functional dependency. Barrio San Pedro Pescador is not attached to any of these agglomerates as a result of insurmountable natural barriers, namely the Paraná river with Corrientes and a series of depressions and ponds with Gran Resistencia. Barrio San Pedro Pescador is an example of the growing cultural and economic integration between the two metropolitan areas.

About five different active eruption periods have been discovered at Taftan volcano. Activity first involved lava and pyroclastics of dacitic to rhyodacitic composition. Later, upper Pliocene lavas were erupted along with agglomerates. These can be found up to away from the cone. Three phases have been dated at 6.95 ± 0.72, 6.01 ± 0.15 and 0.71 ± 0.03 million years ago; an even older phase west-northwest of the current volcano occurred 8 million years ago, while a Quaternary ignimbrite has produced an age of 404,000 ± 82,000 years before present.

Polycrystalline structure of malleable iron at 100x magnification Malleable iron is cast as white iron, the structure being a metastable carbide in a pearlitic matrix. Through an annealing heat treatment, the brittle structure as first cast is transformed into the malleable form. Carbon agglomerates into small roughly spherical aggregates of graphite leaving a matrix of ferrite or pearlite according to the exact heat treatment used. Three basic types of malleable iron are recognized within the casting industry: blackheart malleable iron, whiteheart malleable iron and pearlitic malleable iron.

The geology of the Wrekin and its immediate area is complex, consisting of a variety of rocks of a range of ages affected by numerous faults. The crest of the Wrekin's ridge and its northwestern slopes are formed from various rocks of volcanic origin assigned to the Uriconian series, of Precambrian age. The 'Uriconian Volcanics' include rhyolites, tuffs and agglomerates. These rocks – layers of ancient lava flows laid down in a volcanic island arc, similar to modern Japan – are approximately 680 million years old.

Powder Technology 8, 69-74 Segregation occurs mainly during the powder handling and it is pronounced in free-flowing powders. One of the effective methods to control granular segregation is to make mixture's constituents sticky using a coating agent. This is especially useful when a highly active ingredient, like an enzyme, is present in the mixture. Powders that are inherently not free flowing and exhibit high levels of cohesion/adhesion between the compositions are sometimes difficult to mix as they tend to form agglomerates.

Agglomerated food powder is a unit operation during which native particles are assembled to form bigger agglomerates, in which the original particle can still be distinguished.B. Cuq, S. Mandato, R. Jeantet, K. Saleh and T. Ruiz, 7 - Agglomeration/granulation in food powder production, In Woodhead Publishing Series in Food Science, Technology and Nutrition, Woodhead Publishing, 2013, Pages 150-177, Handbook of Food Powders. Agglomeration can be achieved through processes that use liquid as a binder (wet methods) or methods that do not involve any binder (dry methods).

A scanning electron microscope image of bundles of multiwalled carbon nanotube piercing an alveolar epithelial cell. Inhalation exposure is the most common route of exposure to airborne particles in the workplace. The deposition of nanoparticles in the respiratory tract is determined by the shape and size of particles or their agglomerates, and they are deposited in the alveolar compartment to a greater extent than larger respirable particles. Based on animal studies, nanoparticles may enter the bloodstream from the lungs and translocate to other organs, including the brain.

A scanning electron microscope image of bundles of multiwalled carbon nanotube piercing an alveolar epithelial cell. Inhalation exposure is the most common route of exposure to airborne particles in the workplace. The deposition of nanoparticles in the respiratory tract is determined by the shape and size of particles or their agglomerates, and they are deposited in the lungs to a greater extent than larger respirable particles. Based on animal studies, nanoparticles may enter the bloodstream from the lungs and translocate to other organs, including the brain.

Three suites of intrusive and volcanic rocks are found in the Kutai Basin, and have been used to constrain the Tertiary stratigraphy . The felsic Nyaan volcanics, dated to 48-50 Ma may be related to the extensional tectonics that initiated basin formation. In some locations, the Nyaan volcanics and equivalents are at the base of the Tertiary sedimentary succession, while at other locations bedded tuffs, agglomerates and reworked pyroclastics are part of the late Eocene succession. The Sintang Intrusive suite are mafic to felsic and have a fine crystalline nature which indicates high level emplacement.

TEM analysis showed that TaC helps dissolution of carbonitride phase and converts to TaC-binder phase. The resulting is a formation of “black-core-white rim” structure with decreasing grain size in the region of 3-5 wt% TaC addition and increasing transverse rupture strength (TRS). 0-3 wt% TaC region showed a decrease in the TRS because the TaC addition decreases the wettability between binder and carbonitride phase and creates pores. Further addition of TaC beyond 5 wt% also decreases TRS because TaC agglomerates during sintering and porosity again forms.

The very first attempts at applying cyclone oven technology in the reduction of iron ore took place at Koninklijke Hoogovens in the 1960s. Cyclone technology had already been used successfully in different industrial, chemical processes and designers at Hoogovens thought it might be a strategy for improvement for their process. However, at the time they could not get it to work properly and the experiment was quickly abandoned. The first serious revival came in 1986, when Hoogovens sought a method of producing steel without having to produce iron ore agglomerates such as pellets and sinter.

Crystalline masses of a different kind occur in some numbers in certain agglomerates. They consist of volcanic minerals very much the same as those formed in the lava, but exhibiting certain peculiarities which indicate that they have formed slowly under pressure at considerable depths. They bear a resemblance to plutonic igneous rocks, but are more correctly to be regarded as agglomerations of crystals formed within the liquid lava as it slowly rose towards the surface, and at a subsequent period cast out by violent steam explosions. The sanidinites of the Eifel belong to this group.

The Danco Coast Tectonic Block includes the Upper Permian-Triassic Trinity Peninsula Group, consisting of over 1000 m of metaturbidites folded during the Gondwanide orogeny. This group is overlain by the Lower Cretaceous Antarctic Peninsula Volcanic Group, with up to 2000 m of basaltic and andesitic lavas, tuffs and agglomerates, which were folded and faulted during the Tertiary. These two groups were intruded by the Berriasian-Cenomanian granite and gabbro sills of the Andean Instrusive Suite. A system of hypabbysal dykes intruded during the Late Cretaceous or Tertiary.

Different experimental systems have been established to test the stability of airborne particles and their potentials to deagglomerate under various conditions. A comprehensive system recently reported is able to maintain robust aerosolization process and generate aerosols with stable number concentration and mean size from nano- powders.Yaobo Ding & Michael Riediker (2015), A system to assess the stability of airborne nanoparticle agglomerates under aerodynamic shear, Journal of Aerosol Science 88 (2015) 98–108. doi:10.1016/j.jaerosci.2015.06.001 The deagglomeration potential of various airborne nanomaterials can be also studied using critical orifices.8\.

Construction of cairns. Cairnfields have on occasions been confused with various other classes of monuments, such as round barrow cemeteries and groups of round barrows, stone hut circles, ring cairns, or burnt mounds. In general round barrows are larger, more regular, and may contain visible traces of a cist or kerb; stone hut circles have distinct entrances; ring cairns have a hollow centre; and burnt mounds contain a high proportion of fire-crazed stones of rather smaller size than appear in the average clearance cairns within cairnfields. Natural deposits such as so called 'clitter agglomerates',Clitter cairns.

The Interagency Volcanic Event Notification Plan was created to outline the notification procedure of some of the main agencies that would respond to an erupting volcano in Canada, an eruption close to the Canada–United States border or any eruption that would affect Canada. The lava plateau margins of Level Mountain are vulnerable to landslides. This is particularly true around the steep south and west boundaries where relatively clay-rich, incompetent layers of agglomerates and tuffs are present between more competent basaltic lava flows. Remnants of a mudflow are present on the eastern slope of the Little Tahltan canyon.

The Bale Mountains were formed prior to the formation of the Great Rift Valley, from lava outpourings which covered all underlying rock formations between 38 and 7 million years ago. The rocks of the volcanic outpourings are predominantly trachytes, but also include rhyolites, basalts, and associated agglomerates and tuffs. The main Bale highlands consist of the vast lava Sanetti Plateau, with at least six volcanic cones, each more than 4,200 meters high and considerably flattened by repeated glaciations. There have been at least two glacial periods in the history of the mountains and they were glaciated as little as 2,000 years ago.

They are commonly in diameter, but specimens as large as have been observed. There is less variety in their composition at any one volcanic centre than in the case of the lithic blocks, and their composition indicates the type of magma being erupted. Agglomerates are typically found near volcanic vents and within volcanic conduits, where they may be associated with pyroclastic or intrusive volcanic breccias. Older (pre-1970) publications, particularly in Scotland, referred to any coarse-grained volcaniclastic rock as 'agglomerate', which led to debris flow deposits, talus deposits and other types of breccia being mistaken for vents.

For exposure and risk assessments of airborne nanoparticles, it is important to know about the size distribution of aerosols. When inhaled by humans, particles with different diameters are deposited in varied locations of the central and periphery respiratory system. Particles in nanoscale have been shown to penetrate the air-blood barrier in lungs and be translocated into secondary organs in the human body, such as the brain, heart and liver. Therefore, the knowledge on stability of nanoparticle agglomerates is important for predicting the size of aerosol particles, which helps assess the potential risk of them to human bodies.

Naudon in H. Brumberger (ed.): "Modern Aspects of Small-Angle Scattering", (Kluwer Academic Publishers, Amsterdam, 1995), p. 191. and coworkers to study metal agglomerates on surfaces and in buried interfaces. With the advent of nanoscience other applications evolved quickly, first in hard matter such as the characterization of quantum dots on semiconductor surfaces and the in-situ characterization of metal deposits on oxide surfaces. This was soon to be followed by soft matter systems such as ultrathin polymer films,(Proceedings of SXNS–6) polymer blends, block copolymer films and other self-organized nanostructured thin films that have become indispensable for nanoscience and technology.

Soot as an airborne contaminant in the environment has many different sources, all of which are results of some form of pyrolysis. They include soot from coal burning, internal-combustion engines, power-plant boilers, hog-fuel boilers, ship boilers, central steam-heat boilers, waste incineration, local field burning, house fires, forest fires, fireplaces, and furnaces. These exterior sources also contribute to the indoor environment sources such as smoking of plant matter, cooking, oil lamps, candles, quartz/halogen bulbs with settled dust, fireplaces, exhaust emissions from vehicles, and defective furnaces. Soot in very low concentrations is capable of darkening surfaces or making particle agglomerates, such as those from ventilation systems, appear black.

The fault with a total length of is located about to the west of the town of Tibú, Norte de Santander, along the eastern base of the Eastern Ranges of the Colombian Andes. In the northern part, the fault places agglomerates and breccias of Jurassic to Triassic age against shales and sandstones of Cretaceous age. Farther south, it places Precambrian gneisses and migmatites against Cretaceous and Jurassic to Triassic rocks. The thrust fault, with an approximate strike of 011.4 ± 8 and dipping to the west, displaces the erosion surface of the Eastern Ranges about vertically according to a topographic survey that was done along the fault.

Fig. 1 A piece (formed with M KMS-96 alumina powder) has been broken after mold ejection.It is a well-established fact that the performance of a ceramic component critically depends on the manufacturing process. Initial powder characteristics and processing, including cold forming and sintering, have a strong impact on the mechanical properties of the components as they may generate a defect population (microcracks, density gradients, pores, agglomerates) within the green and sintered compounds. The mechanical characteristics of the solid obtained after cold forming (the so- called ‘green body’) strongly affect the subsequent sintering process and thus the mechanical properties of the final piece.

In industrial production, a slurry of wheat flour is kneaded vigorously by machinery until the gluten agglomerates into a mass. This mass is collected by centrifugation, then transported through several stages integrated in a continuous process. About 65% of the water in the wet gluten is removed by means of a screw press; the remainder is sprayed through an atomizer nozzle into a drying chamber, where it remains at an elevated temperature for a short time to allow the water to evaporate without denaturing the gluten. The process yields a flour-like powder with a 7% moisture content, which is air cooled and pneumatically transported to a receiving vessel.

Constant onshore winds cool the lakeward side of the island and provide clean beaches with ideal swimming and boating conditions, but poor roads between Rusinga and the nearest town, Homa Bay, inhibit trade and tourism. The brightly glittering black sands of the beaches are made of crystals of melanite garnet, barkevikite hornblende, and magnetite eroded from the uncompahgrite lava fragments in the agglomerates that overlie the fossil beds. The island is also notable as the family home and burial site of Tom Mboya, who before his assassination in 1969 was widely pegged as Jomo Kenyatta's successor as President of the new nation of Kenya.

The HIsarna ironmaking process is a direct reduced iron process for iron making in which iron ore is processed almost directly into liquid iron (pig iron). The process combines two process units, the Cyclone Converter Furnace (CCF) for ore melting and pre-reduction and a Smelting Reduction Vessel (SRV) where the final reduction stage to liquid iron takes place. The process does not require the manufacturing of iron ore agglomerates such as pellets and sinter, nor the production of coke, which are necessary for the blast furnace process. Without these steps, the HIsarna process is more energy-efficient and has a lower carbon footprint than traditional ironmaking processes.

The Călimani Mountains, alongside Gurghiu and Harghita Mountains, fall in the southern group of the youngest mountains in Romania, with extinct craters about 1.8–5 million years ago (Lower Quaternary), that formed in the Upper Pliocene (late Tertiary Neogene). Intense Neogene volcanic activity led to the emergence of huge accumulations of lava spread over a length of 450 km (of which 375 in Romania). Consisting of alternating lava, agglomerates and ash (stratovolcano), the Călimani belongs to the southern group – the most important volcanic mass – with an area of approximately 6,400 km², with a width of about 40 km and a length of nearly 160 km.

When ultrasonic nozzles are used, the spray can be made to be as dry as necessary by the nature of the small and uniform droplet size, by varying the distance the droplets travel and by applying low heat to the substrate such that the droplets dry in the air before reaching the substrate. Process engineers have finer control over these types of variables as opposed to other technologies. Additionally, because the ultrasonic nozzle imparts energy to the suspension just prior to and during atomization, possible agglomerates in the suspension are broken up resulting in homogenous distribution of the catalyst, resulting in higher efficiency of the catalyst and in turn, the fuel cell.

This system tallies (agglomerates) more of the voters' preferences. As in other systems parties with very few voters do not earn a representative in the governing body. Moreover, most such systems impose a threshold that a party must reach (for example, some percentage of the total vote) to qualify to obtain representatives in the body which eliminates extreme parties, to make the governing body as orderly in non- proportionate systems. With the minimum votes threshold version, if a subtype of single-issue politics based on a local issue exists, those parties or candidates distancing themselves from a broad swathe of electoral districts, such as marginal secessionists, or using a marginal minority language, may find themselves without representation.

The Palgrave Palgrave Volcanic Association is a large volcanic and granite caldera edifice of about 1500 square kilometres sandwiched between the Jameson Range Intrusion and the gneisses underlying the Bentley Supergroup volcanics. The caldera is in two parts, an overlying volcanic edifice composed primarily of porphyritic rhyolite and dacite with occasional vent complex agglomerates, which shows prominent circular ring-complex faults, and the Winburn Granite which underlies the caldera and is primarily exposed in the east as a pink, potassium-feldspathic porphyry granite, the lower margins of which are weakly tectonised. The whole caldera edifice is tilted to the southwest, which is why the Winburn Granite is exposed along the east and northeast.

A separate post-event study looked at the relationship with the layer of sediment and the occurrence of soil liquefaction during earthquakes near Bantul. Researchers stated that the Yogyakarta region is seismically active, with four known events in the 19th century and three in the 20th century, with peak ground acceleration values of 0.038–0.531g. The type and properties of sediment control the occurrence and distribution of liquefaction, and other environmental conditions (like the water table) also play a part, as well as the peak ground acceleration of the earthquake. The Bantul-Klaten plain consists of alluvium (sand, silt, clay, and gravel) and volcanic deposits from Merapi (sand, agglomerates, tuff, and ash), as well as limestone and sandstone.

Dust particles, aided by ices and organics, form "aggregates" "dust grains form fractal aggregates" (less often, "agglomerates") of 30 to hundreds of micrometers. These are fluffy, Tucson "fluffy aggregate" due to the imperfect packing of cluster-type (large) dust particles, and their subsequent, imperfect packing into aggregates. Discussion meeting issue “Cometary science after Rosetta” compiled and edited by Geraint H. Jones, Alan Fitzsimmons, Matthew M. Knight, and Matt G. G. T. Taylor "grains" "particles" "hierarchical aggregates" "'clusters'" "compact porous aggregates""highly porous aggregates" The next size category is pebbles, of millimeters to centimeters scale. "cm- sized pebbles" Pebbles were inferred at 103P/Hartley 2, "dust, ice, and hundreds of discrete millimeter to decimeter sized particles." and imaged directly at 67P/Churyumov-Gerasimenko.

The Cheviot Burn At the centre of the range is an outcrop of Early Devonian granite, the Cheviot Pluton, which is surrounded by Silurian and Devonian arc andesitic lava flows, tuffs and agglomerates of the Cheviot Volcanic Formation. These are in turn intruded by a swarm of igneous dykes with a predominantly calc-alkaline chemistry arranged radially around the pluton. Both the pluton and the volcanic rocks owe their origin to the northward subduction of the oceanic crust attached to the former micro- continent of Avalonia beneath the Laurentian plate in the course of the Caledonian orogeny during the Ordovician and Silurian periods. The surrounding lower ground is formed from Carboniferous Limestone, though much of it is obscured by superficial deposits of Quaternary age.

The common feature of these chemicals is that they are weak polyelectrolytes (sometimes cationic), and they have a tendency to form a film at the surface of tacky or hydrophobic suspended matter. Some of the key rules of thumb for talc are (a) disperse it well, (b) add it to those process streams that are giving the biggest problems, (c) add it early enough to the process with enough agitation, and (d) add enough. If too little talc is used, the talc is merely incorporated into deposits and agglomerates of tacky materials. It makes sense also to use an effective retention aid program in order to retain the talc (and any attached tacky materials), purging the problem from the wet- end system.

Further efficiencies can be realized using an Ultrasonic nozzle to apply the platinum catalyst to the electrolyte layer or to carbon paper under atmospheric conditions resulting in high efficiency spray. Studies have shown that due to the uniform size of the droplets created by this type of spray, due to the high transfer efficiency of the technology, due to the non-clogging nature of the nozzle and finally due to the fact that the ultrasonic energy de-agglomerates the suspension just before atomization, fuel cells MEA's manufactured this way have a greater homogeneity in the final MEA, and the gas flow through the cell is more uniform, maximizing the efficiency of the platinum in the MEA. Recent studies using inkjet printing to deposit the catalyst over the membrane have also shown high catalyst utilization due to the reduced thickness of the deposited catalyst layers. Very recently, a new class of ORR electrocatalysts have been introduced in the case of Pt-M (M-Fe and Co) systems with an ordered intermetallic core encapsulated within a Pt-rich shell.

Tantalum carbide is widely used as sintering additive in ultra-high temperature ceramics (UHTCs) or as a ceramic reinforcement in high- entropy alloys (HEAs) due to its excellent physical properties in melting point, hardness, elastic modulus, thermal conductivity, thermal shock resistance, and chemical stability, which makes it a desirable material for aircraft and rockets in aerospace industries. Wang et al. have synthesized SiBCN ceramic matrix with TaC addition by mechanical alloying plus reactive hot-pressing sintering methods, in which BN, graphite and TaC powders were mixed with ball-milling and sintered at 1900 °C to obtain SiBCN-TaC composites. For the synthesis, the ball-milling process refined the TaC powders down to 5 nm without reacting with other components, allowing to form agglomerates that are composed of spherical clusters with a diameter of 100nm-200nm. TEM analysis showed that TaC is distributed either randomly in the form of nanoparticles with sizes of 10-20nm within the matrix or distributed in BN with smaller size of 3-5nm. As a result, the composite with 10 wt% addition of TaC improved the fracture toughness of the matrix, reaching 399.5MPa compared to 127.9MPa of pristine SiBCN ceramics.