Sentences with phrase «of magnetic coils»

In the new study, published online today in Science, Dickman and BCM biologist Le - Qing Wu placed seven homing pigeons (Columba livia) in a dark room in the center of a cube - shaped set of magnetic coils.
Another issue Motojima has had to grapple with is whether or not to add another set of magnetic coils to the interior walls of the reactor to help control disturbances in the plasma called edge - localized modes (ELMs) that can damage the inside of the plasma vessel.
One goal of her research is to supersede the limitations of today's conventional, doughnut - shaped tokamaks, which consist of a magnetic coil, or solenoid, resting within a central hole.

Not exact matches

He's got some sort of obsession about copper coils or some metal coils on the sun, and lamb has been posting those absurd magnetic coil videos.
It uses a complex arrangement of superconducting magnetic coils, as shown below.
From their website: the NuWave PIC is comprised of a series of induction coils (based on magnetic principles).
He won't be looking for elusive infrared photons, but instead will be taking rapid - fire images of plasma loops — coils of ionized gas trapped in billowing magnetic fields — arcing off the sun and peeking out from behind the moon.
At the far end of the chamber are the ends of eight magnetic coils, each pointing toward the center of the central chamber.
Electromagnetic coils are positioned near a patient's skull to deliver brief pulses of magnetic fields; these induce electric currents inside the head, which cause neurons to fire in brain regions associated with mood.
The DCRS is composed of two (transmitting and receiving) magnetic dipole coils, placed in parallel, with each coil having a ferrite core and connected with a resonant capacitor.
In their study, subjects underwent 40 seconds of disruptive transcranial magnetic stimulation (TMS)-- in which a magnetic coil placed near the skull produced small electric currents in the brain that inhibited activity of the posterior TPJ — then spent 30 minutes completing a task.
A magnetic coil surrounds the tube and receives a short - lived electrical pulse to create a pressure within the tube that ejects a droplet of liquid metal through the orifice.
They used high - frequency magnetic materials in a dipole coil structure to build a thin, flat transmitter (Tx) system shaped in a rectangle with a size of 1m2.
The way reconnection disturbs terrestrial power grids is complex but, in essence, the process mimics what happens in electric generators, where a fluctuating magnetic field (usually a moving magnet) produces a current in a coil of wire, says Adam Szabo, director of NASA's Heliophysics Laboratory.
An array of wire coils generates a magnetic field and when a phone disrupts that field, MagMIMO senses it and focuses on the phone by creating a slightly different field with each coil.
Helmholtz coils change the magnetic field of whatever is between them.
Still, progress on the toroidal coils seems faster than on the second of the reactor's key magnetic arrays, the so - called poloidal field coils.
If the sharks indeed have some way of following magnetic lines, when he engages the coils, the sharks will change directions.
To test the particles, the researchers implanted mice with a tumorlike gel saturated with nanoparticles and placed those mice into the wells of cup - shaped electrical coils, which activated the nanoparticles via magnetic pulses.
Fair warning: The magnetic field required by each coil to bend the beam would be so huge that the surge of power through it might melt the coil, making it usable only once.
When the wire is coiled, the magnetic field is concentrated in the center of the coil.
Much of the savings will be in the superconducting cables that are wound into enormous magnetic coils to produce the powerful fields that hold the reactor's superhot plasma in place.
This so - called transcranial magnetic stimulation (TMS) triggers the flow of small electrical currents in neural circuits beneath the coils.
Instead of streaming out of a metal casing and turbine, a blazar's jets «are confined and focused by coiled magnetic fields originating near the [supermassive] black hole.»
To signal which direction to move, the researchers generated a phosphene through transcranial magnetic stimulation, a well - known technique that uses a magnetic coil placed near the skull to directly and noninvasively stimulate a specific area of the brain.
Inside the coil is a rod of terbium dysprosium, which is a magneto - strictive material — its length changes with the magnetic field.
To activate the EPM, a large 50 μs, 7 A current pulse is sent through the coil, inducing a magnetic field strong enough to reverse the magnetization of the soft magnet.
EPMs are a magnetic assembly consisting of two permanent magnets (one hard — very difficult to demagnetize, one soft — easy to demagnetize), two ferromagnetic poles, and a coil.
Top: A piece of BaFe2As2 is stretched while magnetic measurements are taken (the copper wire coil is part of the NMR device).
They made a hose from a cylinder of superconducting material filled with a highly magnetic cobalt - iron alloy, then ran a current through a coil at one end to produce a field (arxiv.org/abs/1304.6300).
Most large tokamaks create the plasma with solenoids — large magnetic coils that wind down the center of the vessels and inject the current that starts the plasma and completes the magnetic field that holds the superhot gas in place.
PCI looks at the brain's response to transcranial magnetic stimulation (TMS), where a magnetic coil is held up to the surface of the skull, generating a pulse to stimulate the neurons beneath and provoke a response that radiates through the brain.
With a grid of electric coils, they simulated magnetic fields found at three critical points in the turtles» migratory routes.
These pulses of electricity create a flickering magnetic field that passes over most objects, except the powered coil's mate (which can be made small enough to fit into consumer electronics).
The researchers also repositioned the coil on the inquirer's head at the start of each game, but for the control games, added a plastic spacer undetectable to the participant that weakened the magnetic field enough to prevent the generation of phosphenes.
Fish - eye view of interior of W7 - X showing graphite tiles that cover magnetic coils.
«The trim coils have proven extremely useful, not only by ensuring a balanced plasma exhaust onto the divertor plates, but also as a tool for the physicists to perform magnetic field measurements of unprecedented accuracy,» said Thomas Sunn Pederson, Max Planck director of stellarator edge and divertor physics.
There are three particular challenges to overcome in the design and manufacture of such leading - edge superconducting magnets — the stresses within the magnetic coils, the management of the very high stored energy within the magnet and the integration of LTS and HTS coils.
Five superimposed images of W7 - X magnetic surfaces displaced by changes in application of trim coil currents.
Patients remain awake for the 30 minute sessions, but have been known to drift into comforting slumber because the magnetic hum of the two copper coils on each side of the cockpit are so comforting.
The impedance of a planar coil suspended on a torsion beam and placed in a strong magnetic field is analyzed.
If you move a magnetic field near a coil of wire the electrons in the wire get excited and electricity will be made.
The stator is the stationary coil of wire that is excited by the spinning magnetic field of the rotor.
Therefore both the stator and rotors are using coils from the same feed and reversing the polarity of the feed reverses the direction of the magnetic fields on both the stator coils and rotor coil - the result being that the motor will rotate in the same direction as before anyway.
Magnetic coils wrapped around the dampers change the viscosity of the fluid, letting the dampers become more rigid or looser, as needed.
When a voltage is applied to a coil, a magnetic field is generated in which the alignment of the particles changes so that they are perpendicular to the oil flow, thereby inhibiting its flow through the shock absorber channels.
The magnetic component of these fields is picked up by the sensor coils in the headphones.
Using these new commercially available superconductors, rare - earth barium copper oxide (REBCO) superconducting tapes, to produce high - magnetic field coils «just ripples through the whole design,» says Dennis Whyte, a professor of Nuclear Science and Engineering and director of MIT's Plasma Science and Fusion Center.
Computer CRTs are an example with the electron beam forced towards the phosphor - coated screen by more or less «static» electric field all the while under the back and forth influence of a dynamic magnetic field from the deflection coils (called «the yoke» in the trade).
[23]... [T] he evidence is that much of this equipment is commonly used in university science laboratories and in other settings involving the production of magnetic fields using electric currents through coiled wires.
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