This means that a speculative utopian vision is about as usefully orienting as a demagnetized compass.
|
|
"Five percent of metro tickets get demagnetized and stop working, frustrating customers," said IDFM spokesman Sebastien Mabille.
|
|
The glass is designed to withstand being baked in an oven, microwaved, scoured with steel wool, demagnetized, and subject to "other environmental threats," the company said.
|
|
They were randomly selected to wear four devices in a different order: a magnetic wrist strap, a very weakly magnetic strap, a demagnetized strap and a copper bracelet.
|
|
"If you only have one tape of the data and it is eaten by a tape drive, demagnetized by some buffer, coffee spilled on it...you have no data, so it is common to make some backup copies," Larry Kellogg, a former NASA systems engineer who worked with Pioneer 10 and Pioneer 11 equipment, told me.
|
|
Unfortunately, the left and right have no interest in that (See also, in this same connection, the handiwork of The New York Times' designated alibi-generator for the right, Bari Weiss, as she seeks to defend the demagnetized moral compass of Patriot Prayer organizer Joey Gibson, who maintains ties to alt-right figures like Kyle Chapman while professing to decry the movement that counts Chapman among it most enthusiastic apostles.) The simple fact is that Cernovich is a bigot, and Yiannopolous is a bigot, and Breitbart News has always been a bigoted website.
|
|
Parts need to be demagnetized down to the right level, using a demagnetisation unit or any other relevant method.
|
|
Another problem is that once the core is magnetized, it will contain hysteresis and the accuracy will degrade unless it is demagnetized again.
|
|
The lack of magnetic anomalies observed in the northern hemisphere could be explained by such an impact, as the shock waves produced might have demagnetized the crust.
|
|
Over the final credits the film shows a montage of Mazan practicing his final routine at comedy clubs intercut with the actual Letterman performance. The routine centers on key cards that become demagnetized, and the frustrations of being locked out of one's hotel room.
|
|
Coercivity, also called the magnetic coercivity, coercive field or coercive force, is a measure of the ability of a ferromagnetic material to withstand an external magnetic field without becoming demagnetized. An analogous property in electrical engineering and materials science, electric coercivity, is the ability of a ferroelectric material to withstand an external electric field without becoming depolarized. Coercivity in a ferromagnetic material is the intensity of the applied magnetic field required to reduce the magnetization of that material to zero after the magnetization of the sample has been driven to saturation. Thus (normal) coercivity measures the resistance of a ferromagnetic material to becoming demagnetized.
|
|
EMI demanded the tapes back but the band had already set off on their sell-out UK tour. The band gave the tapes back when EMI raised their pay to 9%, but they almost destroyed them by travelling through the London Underground, which could have demagnetized them and wiped everything.
|
|
The authorities' response was followed immediately, not only were Alla and Stahan not allowed to leave the country, but they were declared as enemies of the country and banned from performing on stage. All of their recordings on radio and television have been demagnetized. The subsequent decade Rakhimov and Yoshpe spent practically under house arrest.Узбек и еврейка.
|
|
By combining samarium and gadolinium in the alloy, the temperature coefficient can be reduced to nearly zero. SmCo5 magnets have a very high coercivity (coercive force); that is, they are not easily demagnetized. They are fabricated by packing wide-grain lone-domain magnetic powders. All of the magnetic domains are aligned with the easy axis direction.
|
|
FePt NPs are promising materials for ultra-high density magnetic recording media due to their high coercivity. Higher coercivity indicates the material cannot be demagnetized easily. After annealing at 700 °C, the film can have up to 14KOe coercivity compared to common hard drives that have 5KOe coercivity.And nanoparticles have been grown with coercivities up to 37 kOe.
|
|
The normalized saturation remanence and coercivity are indicated on the figure. The curve in the center is the initial magnetization curve. This simulates the behavior of the sample if it is demagnetized before applying a field. The demagnetization is assumed to leave each particle with an equal probability of being magnetized in either of the two directions parallel to the easy axis.
|
|
This is the effect that provides the element of memory in a hard disk drive. The relationship between field strength and magnetization is not linear in such materials. If a magnet is demagnetized () and the relationship between and is plotted for increasing levels of field strength, follows the initial magnetization curve. This curve increases rapidly at first and then approaches an asymptote called magnetic saturation.
|
|
Its distributed poles make it act like a permanent magnet synchronous motor (PMSM). The rotor material, like that of a common nail, will stay magnetized, but can also be demagnetized with little difficulty. Once running, the rotor poles stay in place; they do not drift. Low-power synchronous timing motors (such as those for traditional electric clocks) may have multi-pole permanent magnet external cup rotors, and use shading coils to provide starting torque.
|
|
Ferrite magnets are much more resistant to being demagnetized and are thus more robust. However, debate continues to this day as to the sonic superiority of Alnico V vs ferrite magnetic motors as it relates to freedom from distortion. Also, the 604-8K used a new HF horn design based on Altec's new, patented MANTARAY series of horns, rather than the multicellular horn design of the older models. It also used Altec's new TANGERINE radial phasing plug, which greatly improved the HF performance.
|
|
Apollinaris Patera parallels many of the volcanic terrains on Mars, including most of the Elysium and Tharsis Rises, in that they are demagnetized terrains that conspicuously predate the shutdown of the Martian dynamo. The mechanism of its deactivation has been compared to that of Hadriacus Mons. Researchers observing this noted that the deposition of lavas atop an older, more magnetized terrain might have led to the region's demagnetization. Its existence thus does not challenge hypotheses about the timing of the dynamo shutdown.
|
|
Scripps Institution of Oceanography Tauxe's contributions include the study of remanent magnetism in geological and archaeological materials, as well as co- founding a collaborative data system for compiling and sharing geological magnetic data from around the globe, the Magnetics Information Consortium (MagIC). To facilitate paleomagnetic measurements, Tauxe uses a demagnetized space in San Diego. Tauxe is a leader in research that documents when the earth's magnetic poles reversed. Because technology and electrical grids depend on the Earth's magnetic field to protect it from the sun's magnetic storms, Prof.
|
|
An advantage to the smart card compared to the previous system is the seamless integration with other transit networks of neighbouring cities. Another advantage relates to the speed at which users can access the system. As opposed to the magnetic stripe cards previously in use, the contactless smart card is more user-friendly in that the card does not risk becoming demagnetized and rendered useless, and also does not require patrons to slide the card in a particular way — proximity to the contactless reader will suffice. A disadvantage is that a new card costs $6.
|
|
Very few manufacturers still produce electrodynamic loudspeakers with electrically powered field coils, as was common in the earliest designs; one of the last is a French firm. When high field-strength permanent magnets became available after WWII, alnico, an alloy of aluminum, nickel, and cobalt became popular, since it dispensed with the problems of field-coil drivers. Alnico was used almost exclusively until about 1980, despite the embarrassing problem of alnico magnets being partially degaussed (i.e., demagnetized) by accidental 'pops' or 'clicks' caused by loose connections, especially if used with a high-power amplifier.
|
|
A stack of ferrite magnets A ferrite is a ceramic material made by mixing and firing large proportions of iron(III) oxide (Fe2O3, rust) blended with small proportions of one or more additional metallic elements, such as barium, manganese, nickel, and zinc. They are electrically nonconductive, meaning that they are insulators, and ferrimagnetic, meaning they can easily be magnetized or attracted to a magnet. Ferrites can be divided into two families based on their resistance to being demagnetized (magnetic coercivity). Hard ferrites have high coercivity, so are difficult to demagnetize.
|
|
If the external field is increased, more moments in soft phase rotate downward, and the width of the transition region becomes smaller as the exchange energy density increases. The magnetic moments in the hard phase do not rotate until the external field is high enough that the exchange energy density in the transition region is comparable to the anisotropy energy density in the hard phase. At this point, the rotation of magnetic moments in the soft phase starts to affect the hard phase. As the external field surpasses the hard material's coercivity, the hard magnet gets fully demagnetized.
|
|
Lloyd observed that karezza offered health benefits. For example, he said he knew it to “act like magic in painful menstruation,” and as a remarkable nerve sedative, even curing nervous headache. He also found it one of the best agents “for the benefit and cure of ordinary sexual weaknesses and ailments, including urethritis and prostatitis.” > In successful Karezza the sex-organs become quiet, satisfied, demagnetized, > as perfectly as by the orgasm, while the rest of the body of each partner > glows with a wonderful vigor and conscious joy ... tending to irradiate the > whole being with romantic love; and always with an after-feeling of health, > purity and well-being.
|
|
That is about the same time that Meucci later claimed to have created his first attempt at the telephone in Italy. Bourseul explained: “Suppose a man talks near a moving disc that is flexible enough not to lose any of the vibrations of the voice, and that this disc periodically interrupts the current of a battery; then, at a certain distance, we could have another disc that simultaneously executes the same vibrations. The passage of an electric current through a metal wire transforms into a magnet a piece of soft iron placed in the vicinity of the wire. As soon as the current stops, the soft iron is demagnetized.
|
|
This means a crystal of the material preferentially magnetizes along a specific crystal axis but is very difficult to magnetize in other directions. Like other magnets, the neodymium magnet alloy is composed of microcrystalline grains which are aligned in a powerful magnetic field during manufacture so their magnetic axes all point in the same direction. The resistance of the crystal lattice to turning its direction of magnetization gives the compound a very high coercivity, or resistance to being demagnetized. The neodymium atom can have a large magnetic dipole moment because it has 4 unpaired electrons in its electron structure as opposed to (on average) 3 in iron.
|
|
A rechargeable contactless smart card called "OPUS" unveiled on April 21, 2008 provides seamless integration with other transit networks of neighboring cities by being capable of holding multiple transport tickets: tickets, books or subscriptions, a subscription for Montreal only and commuter train tickets. Moreover, unlike the magnetic stripe cards, which had been sold alongside the new OPUS cards up until May 2009, the contactless cards are not at risk of becoming demagnetized and rendered useless and do not require patrons to slide them through a reader. Since 2015, customers have been able to purchase an OPUS card reader to recharge their personal card online from a computer. In 2016, the STM is developing a smart phone application featuring NFC technology, which could replace the OPUS card.
|
|
These motors are relatively costly, and are used where exact speed (assuming an exact-frequency AC source) and rotation with low flutter (high-frequency variation in speed) are essential. Applications included tape recorder capstan drives (the motor shaft could be the capstan), and, before the advent of crystal control, motion picture cameras and recorders. Their distinguishing feature is their rotor, which is a smooth cylinder of a magnetic alloy that stays magnetized, but can be demagnetized fairly easily as well as re-magnetized with poles in a new location. Hysteresis refers to how the magnetic flux in the metal lags behind the external magnetizing force; for instance, to demagnetize such a material, one could apply a magnetizing field of opposite polarity to that which originally magnetized the material.
|
|