Sentences with phrase «by the electrodes at»

In this nitric oxide (NO) generator, which can be incorporated into a mechanical ventilator or anesthesia machine, air is taken in through the inlet on the left and passes by the electrode at the top of the vertical segment, where a series of sparks generates NO gas.

They found that the activity picked up by the electrodes at the two «hot spots» tracked with peak activity at these sites, as measured by fMRI.

Not exact matches

The device, developed by Dong Song, a professor of biomedical engineering at the University of Southern California, consists of electrodes implanted directly in the brain.

A copper - glass seal binding the insulator and terminal post center electrode together helps protect against misfires by ensuring the full required voltage at the spark gap.

The new electrode grid, developed by a team of researchers at the University of California San Diego and Massachusetts General Hospital, is about a thousand times thinner — 6 micrometers versus several millimeters thick — than clinical electrode grids.

At Duke University Medical Center in North Carolina, researchers have surgically implanted electrodes in the brains of monkeys and trained them to move robotic arms at MIT, hundreds of miles away, just by thinkinAt Duke University Medical Center in North Carolina, researchers have surgically implanted electrodes in the brains of monkeys and trained them to move robotic arms at MIT, hundreds of miles away, just by thinkinat MIT, hundreds of miles away, just by thinking.

«This means that one can control at will in which electrode the heat is released by simply using the proper molecule.»

Both of the painful procedures, but not the other stimuli, elicited an identically large response, detectable by an electrode placed at the top of the head approximately half a second later.

The prosthesis proposed by John Pezaris, an assistant in neuroscience at Massachusetts General Hospital (MGH) in Boston — at least as it's envisioned at this early stage — would be worn like a pair of eyeglasses, with digital cameras over a person's eyes that connect to an array of electrodes implanted in the brain.

The project, headed by Mark Humayun, a professor of ophthalmology and biomedical engineering at the Keck School of Medicine of the University of Southern California, involves an implant consisting of 60 electrodes attached to the retina that conduct information from an external camera to the retina to provide a rudimentary form of sight to patients with the implants.

Another planned clinical trial involves a miniaturized neural electrode the size of a couple of kernels of corn, pioneered by neuroscientist Richard Andersen at Caltech.

The new system, developed by neurologist Niels Birbaumer and his team at the University of Tübingen in Germany, consists of a computer screen in front of a locked - in patient and connected to electrodes that register the person's brain activity.

Usually, in small - molecule junctions, electrons «pushed» through the junction by the applied bias make the leap continuously, from one electrode into the other, so that the number of electrons on the molecule at each instant of time is not well - defined.

An early version created by Donald Sadoway, a materials scientist at the Massachusetts Institute of Technology in Cambridge, and colleagues consisted of a top electrode made from liquid magnesium, a bottom electrode of antimony, and a molten salt electrolyte in between.

A fuel cell converts chemical energy into electricity by reacting hydrogen and oxygen at two different electrodes.

(A) Development of the free calcium ions measured by the calcium ion selective electrode (black line) at pH = 9.25 in comparison with the dosed amount of calcium ions (red line).

In 1999, a group led by Mathieu Kociak and Helene Bouchiat at the University of Paris, South, in Orsay, France, reported in Science (28 May 1999, p. 1508) that ropes of 100 or so nanotubes could carry supercurrent between two superconducting electrodes.

To do this, they «chemically assembled a series of double - dot SETs by anchoring two gold nanoparticles between the nanogap electrodes with alkanedithiol molecules to form a self - assembled monolayer,» explained Yutaka Majima, a professor in the Materials and Structures Laboratory at the Tokyo Institute of Technology.

Kensuke Kobayashi (Professor, Graduate School of Science, Osaka University) and Sadashige Matsuo (Assistant Professor, Graduate School of Engineering, The University of Tokyo), in cooperation with research groups led by Teruo Ono (Professor, Institute for Chemical Research, Kyoto University) and Kazuhito Tsukagoshi (Research Fellow, International Center for Materials Nanoarchitectonics, National Institute for Materials Science), produced graphene samples capable of forming p - n junctions by combining gate electrodes and performed precise measurements of current - fluctuation («shot noise») in the graphene p - n junction in the QH regime in the strong magnetic fields and at low temperatures.

An international team led by researchers from the U.S. Department of Energy's Lawrence Berkeley National Laboratory (Berkeley Lab) used advanced techniques in electron microscopy to show how the ratio of materials that make up a lithium - ion battery electrode affects its structure at the atomic level, and how the surface is very different from the rest of the material.

The electrode stunt was dreamed up by a group of US army reservists working as military policemen at the prison.

Two years ago, an international team of researchers showed that by manipulating electron spin at a quantum magnetic tunneling junction — a nanoscale sandwich made of two metal electrodes with an insulator in the middle — they could induce a large increase in the junction's capacitance.

Later, the flies» hearing was tested by playing a series of song pulses at a naturalistic volume, and measuring the physiological response by inserting tiny electrodes into their antennae.

They did it by penning the plasma in with magnetic fields generated by electrodes and magnets at each end of the long tube.

This mapping pinpointed the origin of Owen's seizures in the left temporal lobe, enabling physicians to target the optimal location for placement of the NeuroPace RNS Neurostimulator, a titanium microprocessor measuring about one by two inches, which is connected to electrodes implanted at the site of seizure origin.

Scalp electrodes worn at night by nine villagers during nine nights revealed biological signs of relatively light sleep compared with Westerners, including shorter periods of slow - wave and rapid eye movement sleep.

By applying the method developed in this research, measurement of the negative ion flow at places still closer to the plasma electrode is possible for clarifying more detailed mechanism of the negative ions extracted as a beam.

Developed by a team at Pusan National University in South Korea, the battery is made from electrode strands coiled into a hollow core and surrounded by an outer electrode tube.

I am sitting in a darkened, closet - size lab at Tufts University, my scalp covered by a blue cloth cap studded with electrodes that detect electric signals from my brain.

When one attempts to recharge a battery by reversing the direction of electric current flow, the opposite takes place: a reduction reaction proceeds at the negative electrode, and an oxidation reaction takes place at the positive electrode.

In the single - atom qubit used by Morello's team, and which Tosi's new design applies, a silicon chip is covered with a layer of insulating silicon oxide, on top of which rests a pattern of metallic electrodes that operate at temperatures near absolute zero and in the presence of a very strong magnetic field.

In 2003, however, researchers at the University of Groningen in the Netherlands who mounted single molecules of diarylethene between gold electrodes found that, even though the switches could be turned off by visible light, they could not then be turned back on by ultraviolet.

In March 2002, the journal Nature detailed the work of scientists at Brown University in Rhode Island who implanted electrodes in the brains of monkeys that allowed the primates to move a computer cursor just by thinking about it.

â $ œWe canâ $ ™ t be that hard on Penfield, because the number of cases where he was able to study head movement was quite limited, and studying head motion as he did, by applying an electrode directly to the brain, creates some challenges, â $ says lead author Buz Jinnah, MD, professor of neurology, human genetics and pediatrics at Emory University School of Medicine.

«Capturing the Transient Species at the Electrode - Electrolyte Interface by In Situ Dynamic Molecular Imaging.»

A new study by neuroscientists at the University of Chicago shows how amputees can learn to control a robotic arm through electrodes implanted in the brain

Scientists at Wake Forest Baptist Medical Center and the University of Southern California (USC) Viterbi School of Engineering have demonstrated a neural prosthetic system that can improve a memory by «writing» information «codes» (based on a patient's specific memory patterns) into the hippocampus of human subjects via an electrode implanted in the hippocampus (a part of the brain involved in making new memories).

By contrast, he says, «I need at least a fifty - year survival of the electrode.»

By carefully controlling the voltages at electrodes positioned on the edges of the pixels, it is possible to spread the colored particles across the pixel or remove them from view altogether by hiding them behind the electrodes, says LensseBy carefully controlling the voltages at electrodes positioned on the edges of the pixels, it is possible to spread the colored particles across the pixel or remove them from view altogether by hiding them behind the electrodes, says Lensseby hiding them behind the electrodes, says Lenssen.

By employing proprietary pretreatment and processing, researchers at Oak Ridge National Laboratory and Drexel University have produced flexible polymer carbon composite films from scrap tires for use as electrodes for supercapacitors.

The graph shows the degree of shyness or behavioral inhibition (BI) and the N400 amplitude evoked by anger at the Pz electrode for each subject.