Sentences with phrase «use of magnetic fields»

The team of scientists has made use of magnetic fields to control microparticle chains embedded in soft robots.

Previously it has been shown that the chirality can be manipulated by applying magnetic fields to complicated nanowire geometries, but the use of magnetic fields is wasteful of energy and limits the ability to address individual domain walls selectively.

These new, non-invasive tools — representing significant advances related to positron emission tomography (PET), 3 - D microscopy and the use of magnetic fields and nanoparticles to remotely control targeted cells...

Not exact matches

The company has developed a machine that uses electricity to print the magnetic equivalent of pixels on a surface — complex patterns of north and south polarity points — allowing precise control over the topology of the magnetic fields.

The International Thermonuclear Experimental Reactor program in the south of France will use magnetic fusion and employ strong magnetic fields to hold and fuse hydrogen plasma.

First experiments probing the collision of parallel magnetic fields using laser - produced plasmas

The International Thermonuclear Experimental Reactor (ITER), an experimental reactor currently being built in the south of France, will house the world's largest ever tokamak — a doughnut - shaped reactor that uses a powerful magnetic field to confine plasma.

Each bit is encoded using the magnetic field of a single atom — making for extremely compact data storage, although researchers have stored only two bits of data so far.

These include Transcranial Magnetic Stimulation and Transcranial Direct Current Stimulation, the former uses alternating magnetic fields to simulate specific brain areas while the latter aims electrical currents of power equal to a 9 - volt battery to specific braiMagnetic Stimulation and Transcranial Direct Current Stimulation, the former uses alternating magnetic fields to simulate specific brain areas while the latter aims electrical currents of power equal to a 9 - volt battery to specific braimagnetic fields to simulate specific brain areas while the latter aims electrical currents of power equal to a 9 - volt battery to specific brain areas.

Thanks to Swarm's precise measurements along with those from Champ — a mission that ended in 2010 after measuring Earth's gravity and magnetic fields for more than 10 years — scientists have not only been able to find the magnetic field generated by ocean tides but, remarkably, they have used this new information to image the electrical nature of Earth's upper mantle 250 km below the ocean floor.

Scientists use models of Earth's structure and measurements of Earth's magnetic field taken at USGS observatories (https://geomag.usgs.gov/monitoring/observatories/) to determine which sections of the electrical grid might lose power during a geomagnetic storm.

A lot of research remains in order to map in detail how animals discover and use the Earth's magnetic field.

Using new data gathered from sites in southern Africa, University of Rochester researchers have extended their record of Earth's magnetic field back thousands of years to the first millennium.

The model derives from a general lattice field theory, which is typically used to describe the quantum behavior of electrons in magnetic and electronic materials.

The trick was performed using a strong magnetic field that distorts the movement of electrons in water molecules, which in turn produces a magnetic field opposing the one applied.

It requires a phone user to be close to the phone when speaking to guarantee that anyone using a replay of a voice over a mechanical speaker is close enough that the magnetic field can be detected.

BACKGROUND: In 1971, while contemplating the hamburger he was eating, American chemist Paul Lauterbur had an epiphany about how to use a magnetic field and radio waves to create images of living tissues.

Now, instruments on the other side of the probe will be pointed at the moon and be used to measure magnetic fields and particles above these fissures.

Professor Edward P. Furlani, PhD, in UB's Chemical and Biological Engineering and Electrical Engineering departments, said that Vader's process mimics drop - on - demand inkjet printing and is based on the principles of magnetohydrodynamics, i.e. the manipulation of conductive fluids using a magnetic field.

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.

In a recent paper published in EPJ H, Fritz Wagner from the Max Planck Institute for Plasma Physics in Germany, gives a historical perspective outlining how our gradual understanding of improved confinement regimes for what are referred to as toroidal fusion plasmas — confined in a donut shape using strong magnetic fields — have developed since the 1980s.

Magnetotactic bacteria can even sense the earth's magnetic field by making use of magnetic nanoparticles in their interior that act as an internal compass.

Structural magnetic resonance imaging (MRI), which measures the anatomy and structural integrity of the brain, and magnetoencephalography (MEG), which measures magnetic fields created by the brain's electrical activity, were used to track potential age - related differences as groups of younger and older adults performed a memory task.

A team of metrologists scanned the plasma containment chamber, or stellarator (as in, «this thing works like a star»), that uses magnetic fields to confine the super-hot plasma within the reactor at the Princeton Plasma Physics Lab in sections, then stitched more than 20 of them together in a seamless mosaic.

Sensors placed around the outer sphere and inside the sodium were used to map the magnetic field, while ultrasound beams measured the rate of flow of the fluid using the Doppler effect.

However, magnetic fields travel in a looping pattern, requiring the use of fragile and lossy ferrites to keep the fields and the energy directed — resulting in an expensive system.

The researchers used a technique called magnetoencephalography, which detects the firing of neurons as changes in the brain's magnetic field, to monitor the responses of the auditory cortex to the tones.

His team is currently testing the sensitivity of the new design to changes in magnetic fields, and hoping that this structure could be used for biosensing applications such as MEG.

«The use of a radiofrequency - driven magnetic field is a big advance in remote gene expression because it is non-invasive and easily adaptable,» says Dordick, who is Howard P. Isermann Professor of Chemical and Biological Engineering and vice president of research at Rensselaer.

MagMIMO does the same thing, but using magnetic fields instead of radio waves.

Diamonds designed with nitrogen - vacancy (NV) centers that can detect changes in magnetic fields are a powerful tool for biosensing technologies and used in the medical detection and diagnosis of disease.

A: I'm working on using solid - state defects in diamonds as magnetic field sensors, with the goal of using them as little nanoscale MRI machines that can study the structure and dynamics of single biological molecules (e.g., proteins).

While some studies suggest the birds rely on smells, the position of the sun, or Earth's magnetic field to navigate, scientists also know that pigeons use visual landmarks.

The findings, which report the use of magnetic permeability - how easily a magnetic field will magnetize a material - are published today, Friday 11th September, in the Journal of Physics D: Applied Physics.

Now scientists have found through close examination that external magnetic fields can be used to coordinate and accelerate some of these flips — perhaps clearing the way to new and improved read / write heads and greater storage density.

My particular field of expertise (or more correctly, least incompetence) was investigating interactions of the lithium ion with erythrocytes using nuclear magnetic resonance (NMR) spectroscopy.

In a world first, the group led by Professor Yasuo Ando of the Graduate School of Engineering — in collaboration with Konica Minolta, Inc. — succeeded in detecting the heart's magnetic field by using the TMR device.

Eatough's team realised that the strong bursts of radio waves emitted by the pulsar would be rotated by the black hole's magnetic field, and so could be used to measure the strength of the field.

NMR machine use magnetic fields and radio waves to probe the spins of atoms, and to change their orientation.

With the new work, the blind mole rat joins the small league of animalsincluding birds, fish and turtlesthat uses an internal compass to read the earths magnetic field.

It uses magnetic fields that are a fraction of the strength but at higher frequency than the electromagnetic fields used in TMS and ECT,» explained first author Dr. Michael Rohan.

Researchers from IMDEA Nanoscience, the Autonomous University of Madrid, the Madrid Institute of Materials Science (CSIC) and the University of the Basque Country describe in the journal Nature Physics this week how to create a powerful magnetic field using this new material.

Pickard says that honeybees use the magnetic field around them to align the parallel sheets of a comb when they build in darkness — in hollow tree trunks, for example.

«I have been presenting this as a miniaturized version of a fidget spinner where we use the magnetic field to generate an isotropic interaction around the particles,» Biswal said.

In the course of their research into the use of magnetic domain walls (local regions of magnetic «charge» usually driven by magnetic fields) to increase our capacity for information storage and logical processing, physicists at the University of Nottingham have discovered a phenomenon which has allowed them to «manipulate» the structure of a magnetic domain wall.

Bismuth selenide has a layered crystalline structure, and the magnetic field the researchers used was directed parallel to the plane of these layers.

Because of the high magnetic field required to produce the magnetoresistance effect, Kobayashi says, the material isn't ready to be used in data storage devices.

Among them is fMRI, a collection of techniques that uses magnetic fields and sensitive detectors to spot active brain areas by telltale increases in blood oxygen.

Physicists in Russia and the Netherlands have proposed using neutrino detectors to search for evidence of a five - mile - wide uranium ball at the planet's center, churning out the heat that powers Earth's magnetic field.

Since the operating temperature for fusion is in the hundreds of millions degrees Celsius, hotter than any known material can withstand, engineers found they could contain a plasma — a neutral electrically conductive, high - energy state of matter — at these temperatures using magnetic fields.