Sentences with phrase «pulses of a magnetic field»

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.

Not exact matches

The inner region sends out clock - like pulses of radiation and tsunamis of charged particles embedded in magnetic fields.

In an MRI machine, a powerful magnetic field causes protons in the body to line up like violin strings under tension, then a pulse of energy plucks those «strings,» making them hum.

In Vader's device, an electrically - pulsed magnetic field permeates liquid metal in an ejection chamber and creates circulating electrical currents that interact with the magnetic field to produce a pressure that squeezes a droplet out of the ejector nozzle.

But the researchers could use the results to apply a precise magnetic field to the cesium vapor that effectively canceled out the ensemble's original spin state and replaced it with one that corresponded to the polarization of the weak pulse, as they report in the 5 October Nature.

Understanding the two phenomena, which are both produced by interactions between charged particles and the planet's magnetic field, may help to explain the variations in the timing of the radio pulses and to shed light on Saturn's geomagnetic workings.

Inertial confinement fusion achieves this by crushing tiny capsules of fuel with intense laser or magnetic field pulses to achieve the required conditions.

Researchers apply current pulses in a magnetic field to boost the magnetic ordering, that is, the number of nanoclusters pointing in the same direction.

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.

A team of researchers has devised perhaps the world's most intricate coin toss, a device utilizing vacuum chambers, magnetic fields, lasers and microwave pulses to produce a random string of 0s and 1s — each representing heads or tails, essentially.

For example, they are investigating networks of nerve cells by detecting the magnetic field each nerve cell pulse emits.

In its rotating magnetic field, electrons and positrons are accelerated up to relativistic energies and emit radiation that arrives to our telescopes in the form of pulses every 33 millisecond, each time the neutron star rotates and meets our telescopic sight.

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).

People might think twice about this technology if it meant turning their living rooms into microwave ovens, but the pulsing magnetic fields of the MIT system don't interact much with walls, people, or even tinfoil.

Instead of using a solenoid to generate a magnetic field, CHI involves injecting a magnetic field into the floor of the tokamak, removing the need to deliver periodic pulses of current.

This involved applying a pulsed magnetic field that was perpendicular to the plane of the domain walls.

With very strong magnetic fields and very fast rotations, some neutron stars blast beams of electromagnetic radiation from their poles, and if Earth is in the path of those beams we can detect the signals as regular «pulses» — hence the name pulsars.

In the presence of the powerful magnetic field, the protons are susceptible to excitation by selective radio frequency pulses.

Kate also played a key leadership role in both the experiments and the manipulation of the data sets in a program of neutron and x-ray diffraction measurements in very high, pulsed magnetic fields.

Gennady Fiksel, of the University of Rochester, and William Fox continued their previous research by adding a magnetic field by pulsing current through very small wires.

BOOKS (67) http://www.amazon.com/Bioelectromagnetic-Healing-Rationale-its-Use/dp/0964107058 Bioelectromagnetic Healing: A Rationale for its Use by Thomas Valone 2003 (68) http://www.amazon.com/Energy-Medicine-Scientific-James-Oschman/dp/0443062617 Energy Medicine: The Scientific Basis by James L. Oschman 2000 Therapeutic Uses of Pulsed EMF (69)(70)(71)(72)(73)(74)(75) http://ajp.psychiatryonline.org/cgi/content/full/163/1/88 A Randomized, Controlled Trial of Sequential Bilateral Repetitive Transcranial Magnetic Stimulation for Treatment - Resistant Depression, Am J Psychiatry 163:88 - 94, January 2006 (70) http://www.ondamed.net/publication/html/en/article15.html Impulse magnetic - field therapy for migraine and other headaches: a double - blind, placebo - controlleMagnetic Stimulation for Treatment - Resistant Depression, Am J Psychiatry 163:88 - 94, January 2006 (70) http://www.ondamed.net/publication/html/en/article15.html Impulse magnetic - field therapy for migraine and other headaches: a double - blind, placebo - controllemagnetic - field therapy for migraine and other headaches: a double - blind, placebo - controlled study.

Friedman later work found that the rabbits all had large amounts of cortisol in their blood and in their brain caused by these pulsed magnetic fields.

LASER treatment, ultrasound, and pulsed electric magnetic field (PEMF) therapy are some of the common modalities that have been found to be effective.

Magnetic resonance imaging (MRI) is a test that uses a magnetic field and pulses of radio wave energy to make pictures of organs and structures inside tMagnetic resonance imaging (MRI) is a test that uses a magnetic field and pulses of radio wave energy to make pictures of organs and structures inside tmagnetic field and pulses of radio wave energy to make pictures of organs and structures inside the body.

The purpose appears to be to assess the impact of high altitude nuclear explosions on radio transmission and radar operations because of the electro - magnetic pulse (EMP), and to increase understanding of the geomagnetic field and the behaviour of the charged particles in it.

MRI uses a powerful magnetic field and radio frequency pulses to make the internal structures of the body, such as organs, bone, and soft tissues, visible on a computer screen.