Sentences with phrase «electrodes passed»

Electrodes pass current through the apparatus, influencing the orientation of the liquid crystals inside and manipulating the way they interact with the polarized light.

Not exact matches

Then pulses of electric current are passed through her brain via electrodes positioned on her head.

They attached small strips of graphene to metal electrodes, suspended the strips above the substrate, and passed a current through the filaments to cause them to heat up.

The researchers then discharged a tiny current between neighboring electrodes that could detect tissue damage based on how much of the current passed through the cells.

A slightly higher voltage offers an excess of electrons; a slightly lower voltage means the electrode will readily accept electrons from anything willing to pass them off.

The new device would use the same type of sensor, but the signal it generates would travel to a microchip implanted in the ear, which would convert it to an electrical signal and pass it on to an electrode in the cochlea.

When the laser pulse has ionized the air, a current begins to pass between the electrodes and, as a result, the physicists are able to assess the appearance of the plasma clusters formed under the influence of the light that has formed into filaments.

The beam is focused using a spherical mirror and passes through a quartz glass plate and is directed towards two ring electrodes that are held at 300 volts.

At one electrode, fuel molecules are broken apart and stripped of negatively charged electrons, which pass through an external circuit to a second electrode.

To probe the function of nearby tissue, the neurosurgeon stimulates it with an electrode that passes pulses of current while the patient — who is awake and under local anesthesia to minimize discomfort — is asked to touch each finger successively with the thumb, count backwards or do some other simple task.

They dunk a positively charged graphite electrode into the salt and pass an electrical voltage between the electrode and the side of the crucible.

The technique involves placing electrodes on the scalp to pass a constant low current through a particular area of the brain.

Next, Deisseroth required someone skilled at patch clamping, a technique that uses an electrode to record ions passing through cells.

Next they scrape the accumulated materials off the electrode, melt them down, cast them into an ingot and pass the ingot to a refabrication line for conversion into fast - reactor fuel.

The tandem device also requires a window layer on top, which acts as an electrode, but limits the amount of light passing through.

But not all the sunlight would be absorbed by this electrode: light with a wavelength longer than 600 nanometres isn't absorbed by the rust - coloured water in the top cell so would pass through to strike the lower electrode, powering the production of hydrogen.

Unlike conventional transparent electrodes that only transmit visible light, the team's TTE plays the dual role of allowing visible light to pass through while at the same time reflecting infrared rays.

The electrodes typically have to pass the caudate and putamen to reach their target.

In the laboratory, it was a relatively simple step for Lovley to dupe the enterprising microbes into passing their electron booty to an even more attractive mineral — an electrode made of unpolished graphite.

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.

Instead of creating a sugar molecule, as they would in a spinach leaf, the electrons passed through the semiconductor and into the electrode.

In this painless treatment, low - level current is passed through two electrodes placed over the head to tweak the electrical activity in specific areas of the brain.

Pons and Fleischmann asserted that passing a current through heavy water — water containing deuterium, a heavy isotope of hydrogen — between palladium electrodes produced a huge amount of heat.

Summers underwent regular physical therapy sessions during which researchers passed pulses of electric current through the electrodes to stimulate neurons in the spinal cord.

Strontium cobaltites are just one example of a class of materials known as transition metal oxides, which is considered promising for a variety of applications including electrodes in fuel cells, membranes that allow oxygen to pass through for gas separation, and electronic devices such as memristors — a form of nonvolatile, ultrafast, and energy - efficient memory device.

Today's implantable electrodes degrade within 1 to 2 years, and all connect to wires that pass through holes in the skull.

Using this information, the group will build a device in which stretched DNA molecules would be made to pass between sharp electrodes spaced 2 to 5 nanometers apart.

When two silver electrodes are placed in contact with the skin of the body, and a small current is passed between the electrodes, the body itself completes the electrical circuit.

I have simply used basic principles of chemistry to calculate how much silver would be deposited into distilled water (DW) when a given amount of electric current is passed through pure silver electrodes.

High - voltage alternating current is passed across two electrodes, which creates low - temperature plasma.