Sentences with phrase «magnetic control of»

Magnetic control of heterogeneous ice nucleation with nanophase magnetite: Biophysical and agricultural implications

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 breakthrough, he adds, has been an evolutionary one in the development of the controls needed to manipulate the magnetic fields to the temperatures (millions of degrees) and pressures in which fusion happens.

Then, by controlling the qubit with an external magnetic flux, they were able to inject individual mechanical quanta into the resonator, the first step toward the quantum control of a mechanical system.

The distortion of the crystal structure can thus be controlled, which in turn has an effect on the magnetic ordering.

Exploiting this reduction of complexity and degree of control, the team was able to monitor the microscopic processes in their quantum many - body system and to identify ways to enhance and manipulate the magnetic order in their system.

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...

This new method for fine tuning conductivity could lead to control over optical and magnetic properties of components, with far - reaching applications.

While measuring brain activity with magnetic resonance imaging during blood pressure trials, UCLA researchers found that men and women had opposite responses in the right front of the insular cortex, a part of the brain integral to the experience of emotions, blood pressure control and self - awareness.

In turn, the MIT allows dramatic nonmagnetic control of the coercivity, which changes by several hundred percent within a narrow 10 K temperature range, unlike any other known magnetic material.

Compared with healthy controls, patients with chronic fatigue syndrome had less activation of the basal ganglia, as measured by fMRI (functional magnetic resonance imaging).

For about a minute, running on half a hair dryer's worth of power, the orbiter - cum - probe beamed direct measures of the planet's atmosphere, along with final probes of its gravity and magnetic field, to mission control at the Jet Propulsion Laboratory (JPL) in Pasadena, California.

By carefully controlling the composition of the droplets and the strength of the magnetic field, the forces applied by the droplet can be controlled, and the response of the surrounding tissue reveals its mechanical characteristics as well as the cues that cells are exposed to as the tissue grows.

Over time, it should detect tens or hundreds of cosmic rays from individual AGNs and their range of energies should clarify exactly how they were accelerated — a process thought to be controlled by magnetic fields around the colossal black holes.

«In contrast, the highly crystalline and uniformly flat 2 - D CGT, together with its small intrinsic anisotropy, allows small external magnetic fields to effectively engineer the anisotropy, enabling an unprecedented magnetic field control of ferromagnetic transition temperatures.»

Using a technique called nuclear magnetic resonance spectroscopy, the researchers measured the concentrations of 21 metabolites key to nerve function in the brains of 10 deceased schizophrenia patients and 12 normal human controls.

Functional materials are those with controlled composition, size, and structure to facilitate desired interactions with light, electrical or magnetic fields, or chemical environment to provide unique functionality in a wide range of applications from energy to medicine.

A tiny robot made of plastic can be «controlled» by an external magnetic field

This new technique enables tight control over diameter, length and surface properties of the nanorods, whose optical, electrical, magnetic and catalytic properties depend on the precursor materials used and the dimensions of the nanorods.

«Even if this particular material will probably not be used because of the low temperatures and strong magnetic domains required, our experiments show what this kind of control could, in principle, look like,» adds Simon Gerber, first author of the publication.

In this configuration the lead forms «islands» below the graphene and the electrons of this two - dimensional material behave as if in the presence of a colossal 80 - tesla magnetic field, which facilitates the selective control of the flow of spins.

The research team, which included Natalya Pugach from the Skobeltsyn Institute of Nuclear Physics, studied the interactions between superconductivity and magnetization in order to understand how to control electron spins (electron magnetic moments) and to create the new generation of electronics.

Through analysis of high - resolution anatomical magnetic resonance imaging of brain volumes, taken three times over the two - year study period, the researchers were able to determine that individuals with MCI or Alzheimer's showed greater losses in gray matter volume in both the basal forebrain and temporal lobe, compared with cognitively normal controls.

University of Utah physicists read the subatomic «spins» in the centers or nuclei of hydrogen isotopes, and used the data to control current that powered light in a cheap, plastic LED — at room temperature and without strong magnetic fields.

«This experiment is remarkable because the magnetic forces created by the nuclei are millions of times smaller than the electrostatic forces that usually drive currents,» yet they were able to control currents, he says.

Trans - gender persons as well as female and male control subjects were examined by way of diffusion - based magnetic resonance tomography (MRT).

The researchers show that by growing the magnetic layers on various 2D crystals, better known as nanosheets, you can control the preferred direction of the magnetism very locally.

A newly designed metallic soap reacts to a magnetic field, a first in soap research that could lead to better control of cleanup chemicals in situations like aquatic oil spills.

«Having a large genetic control over the swimming direction versus magnetic cues may be an evolutionarily robust way of preserving the populations over a long stretch of geological time.»

For magnetic fusion energy to fuel future power plants, scientists must find ways to control the interactions that take place between the volatile edge of the plasma and the walls that surround it in fusion facilities.

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.

The control and manipulation of these domain walls is crucial for successful realizing magnetic memory, logic and sensors devices.

Already now, we are able to control the behavior of individual atoms by situating them within special semiconductor structures - this is the method used to form quantum dots that contain single magnetic ions.

For this placebo - controlled and age - matched functional magnetic resonance imaging study a total of 28 subjects were included (only males, mean age = 27.09, SD ± 7.06).

A team of engineering researchers has made a fundamental advance in controlling so - called soft robots, using magnetic fields to remotely manipulate microparticle chains embedded in soft robotic devices.

Another way of controlling inter-particle collisions at ultracold temperatures is to turn on an external magnetic field.

«When studying magnetic resonance images of the brains of patients suffering from CRPS, we noticed that the choroid plexus was nearly one - fifth larger in patients than in healthy control subjects,» says Postdoctoral Researcher Guangyu Zhou from Aalto University Department of Neuroscience and Biomedical Engineering (NBE), who analysed the images.

The dramatic findings complement NASA's Juno mission this summer which aims to understand the relationship between the two biggest structures in the solar system — the region of space controlled by Jupiter's magnetic field (i.e. its magnetosphere) and that controlled by the solar wind.

«Not only are there applications for healthy people to better realize their potential, but EEG - neurofeedback work has been extended to pathology, as in the case of children with attentional disabilities and [transcranial magnetic stimulation] for depression,» notes psychologist John Gruzelier of Goldsmiths College in London, who has been working on training musicians to control their own brain waves, thereby improving performance.

That means, the team reports in an upcoming issue of The Astrophysical Journal, that the masers are following magnetic field lines, and therefore magnetic fields are controlling the star's evolution by pulling away material that otherwise would have been captured by the star's gravity.

The technique could facilitate the use of nanoparticles for optical, electrical, optoelectronic, magnetic, catalysis and other applications in which tight control over size and structure is essential to obtaining desirable properties.

By studying how the aurora changes, we can discover more about the region of space controlled by Jupiter's magnetic field, and if or how this is influenced by the Sun.

The findings, which have been submitted to Physical Review Letters for publication, demonstrate that by tweaking magnetic field strength and cloud density the researchers can control how spin waves evolve and take snapshots of every stage.

«Precision control of superconductivity in atomic layers using magnetic molecules.»

A research team led by Shunsuke Yoshizawa, ICYS researcher, NIMS, Takashi Uchihashi, leader of the Surface Quantum Phase Materials Group, MANA, NIMS, Emi Minamitani, assistant professor, School of Engineering, University of Tokyo, Toshihiko Yokoyama, professor, IMS, NINS, and Kazuyuki Sakamoto, professor, Graduate School of Advanced Integration Science, Chiba University, succeeded in precisely controlling the transition temperature of atomic - scale - thick superconductors using magnetic organic molecules.

In order to obtain such high magnetic performances it is necessary to gain precise control of the synthesis parameters during the manufacturing process of a magnet and to thoroughly understand the atomic - scale structure and behaviour of the involved phases.

This method of making larger superparamagnetic crystals paves the way for the development of superparamagnetic bulk materials that can be reliably controlled by moderate external magnetic forces, revolutionizing drug delivery to tumors and other sites in the body that need to be targeted precisely.

In studying the functional behavior of the brain, from control of muscles to the formation of memories, scientists are using such tools such as electron microscopy, recordings of electrical signals from individual brain cells, and imaging of brain structures and processes using functional magnetic resonance imaging (fMRI), positron emission tomography (PET), and high - resolution optical imaging.

Switch on powerful magnetic fields to create and control a hot plasma (ionized gas) of deuterium.

«Our results in this study represent an NMR signal enhancement equivalent to that achieved in the pioneering experiments of Lucio Frydman and coworkers at the Weizmann Institute of Science, but using microwave - induced dynamic nuclear hyperpolarization in diamonds without the need for precise control over magnetic field and crystal alignment,» Pines says.