Magnetic field, on the hand, arises whenever an electrical appliance is actively
using electrical current.
The team showed that by using a powerful magnetic field and very low temperatures, below — 450 degrees Fahrenheit -LRB--- 270 degrees Celsius), they could read the state of electrons in a silicon wafer, potential qubits,
using electrical current, and were able to extend the usable lifetime of those qubits dramatically.
TASER still gets the bulk of its revenue from selling its weapons, which
use electrical current to immobilize targets.
Researcher Hiromi Nakamura said she spent the last six years looking for a way to create taste
using electrical currents.
PRAM is novel because
it uses electrical current to store data in a glassy substance called chalcogenide, whose atoms are rearranged when it is heated.
The next step, microfluidic electrophoresis,
uses an electrical current to move and further separate the P1 molecules from any other remaining components.
One technology aims to
use electrical current to image the root system.
«The other compelling reason is that you don't
use electrical currents back through the source dipoles to kill them!
Not exact matches
The work is still in it's early stages — «Any effort to
use electric
current for stimulating the brain outside the laboratory or clinic could be dangerous and should be strongly discouraged,» Green cautions — but there are already places where the idea of
electrical stimulation is being tested out in the real world.
Widely
used by doctors and physical therapists to control pain and stimulate healing by passing
electrical current through affected areas, the devices cost thousands of dollars and can be tricky to
use, but Rahimi experienced immediate, lasting relief the first time he
used it.
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 brain areas.
A noninvasive technique for brain stimulation, tDCS is applied
using two small electrodes placed on the scalp, delivering short bursts of extremely low - intensity
electrical currents.
Using electrical measurements he collected during the eel attacks, Catania came up with an equation to estimate the amount of electric
current flowing from the eel into his arm.
Peter Brown at University College London
used electrodes to generate a small
electrical current in the brains of 14 healthy volunteers.
The tiny
electrical currents tDCS
uses — generally one to two milliamps — can not actually trigger the chemical impulse that crosses a synapse, but some researchers believe tDCS strengthens synaptic connections to make learning more efficient.
This study will include 36 people with spinal cord injuries who will be treated with epidural stimulation — a technique in which a device is
used to apply
electrical current to the spinal cord.
As batteries are
used and charged, the electrochemical reaction results in the movement of ions between the two electrodes of a battery, which is the essence of an
electrical current.
Called repetitive transcranial magnetic stimulation (rTMS), the noninvasive technique
uses electromagnets to create localized
electrical currents in the brain.
«Single molecules can work as reproducible transistors — at room temperature: Researchers are first to reproducibly achieve the
current blockade effect
using atomically precise molecules at room temperature, a result that could lead to shrinking
electrical components + boosting data storage + computing power.»
Using heat from an external solar array, Licht, who's based at George Washington University, can raise the temperature so high that only a minute
electrical current, supplied by solar photovoltaic cells, is needed to split the compounds.
Conventionally such chemical sensors
use only the change in the
electrical current through the device or a change in the resistance of the device active channel.
Optical, or photonic, chips
use light rather than an
electrical current to carry information.
Electrical circuits
use four fundamental variables —
current, voltage, charge and magnetic flux - linkage.
Your brain transmits information about your
current location and memories of past locations over the same neural pathways
using different frequencies of a rhythmic
electrical activity called gamma waves, report neuroscientists at The University of Texas at Austin.
Using a resistor to convert
electrical charge to alternating
current, Krupenkin was able to harvest
electrical energy from drops of either mercury or galinstan, a gallium - based alloy as they were moved along these channels and over the electrodes.
In addition, the
electrical contacts industry, which now
uses alternating
current in devices, might finally be able to turn to direct
current devices as higher performance alternatives.
In the new experiments, the physicists
used magnetic resonance to reverse the nuclear spins in hydrogen isotopes embedded in the OLED, and then were able to detect how the reversed spins caused a change in the
electrical current through the OLED.
Summers
uses a remote control to send an
electrical current from the neurostimulator to the array and a group of neurons — called interneurons — in the spinal cord.
In June biochemist Shuguang Zhang and his colleagues at MIT showed they could bend that capability to a technological end,
using light - harnessing proteins from spinach to convert sunlight into an
electrical current.
Using electrophysiological methods to measure
electrical currents through cell membranes, the research group at the Institute for Physiology and Pharmacology, led by Marjan Slak Rupnik, showed that dextromethorphan extends the periods of
electrical activity in beta cells.
Current treatment methods used are transcranial direct current simulation (tDCS)-- which is application of a low intensity direct (constant) current between two electrodes on the head, and transcranial alternating current simulation (tACS)-- which sees a constant electrical current flow back and
Current treatment methods
used are transcranial direct
current simulation (tDCS)-- which is application of a low intensity direct (constant) current between two electrodes on the head, and transcranial alternating current simulation (tACS)-- which sees a constant electrical current flow back and
current simulation (tDCS)-- which is application of a low intensity direct (constant)
current between two electrodes on the head, and transcranial alternating current simulation (tACS)-- which sees a constant electrical current flow back and
current between two electrodes on the head, and transcranial alternating
current simulation (tACS)-- which sees a constant electrical current flow back and
current simulation (tACS)-- which sees a constant
electrical current flow back and
current flow back and forth.
Sandia's Z machine
uses magnetic fields and
electrical currents to mimic the temperatures, pressures and radiation of a nuclear blast.
The performance effects of tDCS only occurred when the tDCS electrodes
used to deliver the
electrical current were positioned in a particular way.
Using a multi-disciplinary approach involving electrophysiological, cellular and biophysical techniques, the researchers found that parts of the prion protein lacking the «brake» region produced abnormal
electrical currents in cells.
Using an onboard source of energy (such as a battery, ultracapacitor, solar panel or any combination thereof), the electrodes will send an
electrical current into the plasma, causing the plasma to push against the neutral (noncharged) air surrounding the craft, theoretically generating enough force for liftoff and movement in different directions (depending on where on the craft's surface you direct the
electrical current).
This ongoing study, the PACt - MD study, combines brain training exercises and brain stimulation,
using a mild
electrical current to stimulate brain cells and improve learning and memory.
For ultrafast operation of such nano - devices, generation of spin
current in picoseconds — one trillionth of a second — a time - scale that is difficult to achieve
using electrical circuits, is highly desired,» Cahill added.
Halas, Rice's Stanley C. Moore Professor of
Electrical and Computer Engineering and professor of chemistry, bioengineering, physics and astronomy, and materials science and nanoengineering, said hot electrons are particularly interesting for solar - energy applications because they can be
used to create devices that produce direct
current or to drive chemical reactions on otherwise inert metal surfaces.
In the new report published in Nature Materials, the Los Alamos team demonstrates that
using their «designer» quantum dots, they can achieve light amplification in a nanocrystal solid with direct -
current electrical pumping.
RAM, which is
used to run the programs on your computer, can record and rewrite information very quickly via an
electrical current.
One promising technique involves reading DNA bases
using changes in
electrical current as they are threaded through a nanoscopic hole.
Current treatment methods used are transcranial direct current simulation (tDCS)- which is application of a low intensity direct (constant) current between two electrodes on the head, and transcranial alternating current simulation (tACS)- which sees a constant electrical current flow back and
Current treatment methods
used are transcranial direct
current simulation (tDCS)- which is application of a low intensity direct (constant) current between two electrodes on the head, and transcranial alternating current simulation (tACS)- which sees a constant electrical current flow back and
current simulation (tDCS)- which is application of a low intensity direct (constant)
current between two electrodes on the head, and transcranial alternating current simulation (tACS)- which sees a constant electrical current flow back and
current between two electrodes on the head, and transcranial alternating
current simulation (tACS)- which sees a constant electrical current flow back and
current simulation (tACS)- which sees a constant
electrical current flow back and
current flow back and forth.
«We believe we are the first to investigate the idea of
using this concept for implantable medical devices that
use direct
electrical current, long thought to be unsafe.»
The technique
uses transcranial direct
current stimulation (tDCS), in which weak
electrical currents are applied to the scalp
using electrodes.
To do so, they
used an existing model that describes radiative heat transfer as
electrical currents flowing within two objects.
When scraps of steel and brass are anodized
using a common household chemical and residential
electrical current, the researchers found that the metal surfaces are restructured into nanometer - sized networks of metal oxide that can store and release energy when reacting with a water - based liquid electrolyte.
An international team of scientists has discovered a new type of silicon that could be
used to control light beams in a new kind of photonic chip — a chipset where information is carried by light beams rather than
electrical currents.
One recently detailed method
uses bacteria metabolizing organic matter and excreting hydrogen with a small amount of
electrical current as catalyst:
We also perform frequency - specific microcurrent - a special treatment method that
uses low - level
electrical current to accelerate healing and relieve pain.
Frequency - Specific Microcurrent (FSM) is a unique treatment method
using low - level
electrical current.