electric field

Electric field

Adapter (40)
Anode (195)
Cathode (146)
Dielectric material (55)
Direct current (16)
Electric arc (8)
Electric current (81)
Electric field (150)
Electrical circuit (30)
Electrical conduction (5)
Electrical conductivity (75)
Electrical engineering (270)
Electrical insulator (6)
Electrification (8)
Electroluminescence (23)
Electromagnetism (22)
Mechatronics (6)
Photoelectric effect (14)
Resistor (17)
Resonator (92)
Signal processing (27)
Superconductivity (224)

They then used an electric field to pull out the fat layer that had been dissolved in an electrically charged detergent

The electric field aspect was a challenge for some labs. bout half the people who tried it got it working right away,

Laser pulses generated coherent bursts of terahertz radiation through a built-in surface electric field of the indium phosphide substrate that changed due to charge transfer between the graphene and the contaminating molecules.

Secondly, the particles can be triggered by an outside magnetic field to produce an electric field when adjacent to individual neurons.

That electric field, researchers say, should be able to communicate directly with the brain electric field. hen MENS are exposed to even an extremely low frequency magnetic field,

they generate their own local electric field at the same frequency, lead researcher Sakhrat Khizroev told New Scientist. n turn,

the electric field can directly couple to the electric circuitry of the neural network. he nanoparticles could be used to deliver drugs to specific parts of the brain.

In fact, the team research has demonstrated already that anti-HIV and anticancer drugs could be delivered and released in this way.

Theory had suggested that an extra-strong electric field from the sun can rip plasma away from the plasmasphere during reconnection triggering a plume.

When a small electric field is applied these pools morph into cones, which amplify the electric field so that it is strong enough to pull away ions in a steady beam (see below).

The process is self-sustaining. Fresh liquid gets sucked onto the chip when ions are emitted, just as tree roots suck in water

The result is an array of between 500 and 5000 focussed ion beams that stream from each of the eight chips on the Cubesat when the electric field the strength

MIT postdoc Seyed Mahmoudi a co-author of the paper notes that electric fields cannot penetrate into conductive fluids such as biological fluids so conventional systems wouldn t be able to manipulate them.

While this initial demonstration used a magnetic fluid the team says the same principle could be applied using other forces to manipulate the material such as electric fields or differences in temperature.

This can be done by applying a magnetic or electric field, or by flowing two streams of liquid along the outer edges of the channel, forcing the particles to stay in the center.

When atoms travel across such an electric field, they are drawn to places of minimum potential in this case, the troughs.

Moreover their method enables this value to be tuned through the application of an electric field meaning graphene circuit elements made in this way could one day be rewired dynamically without physically altering the device.

Applying an electric field pulse can change the sign of the surface charges. That's an unstable situation Rappe said in that the positively charged surface will want to accumulate negative charges and vice versa.

You could come along with a tip that produces a certain electric field and just by putting it near the oxide you could change its polarity Martin said.

E-jet printing refers to a technique called electrohydrodynamic jet described as a micro/nanomanufacturing process that uses an electric field to induce fluid jet printing through micro/nanoscale nozzles.

An electric field at the nozzle opening causes ions to form on the meniscus of the ink droplet.

The electric field pulls the ions forward deforming the droplet into a conical shape. Then a tiny droplet shears off and lands on the printing surface.

The difficulty with the e-jet printing method is that the electric field at one nozzle affects the fields of neighboring nozzles.

The pieces of plastic were subjected then to an increasing electric field until they crackled. Fullerenes turned out to be the type of additive that most effectively protects the insulation plastic.

(or voltage) produces a strong electric field that drives molecular rearrangements in the electrolyte next to the electrode.

Under a strong electric field the cathode emits tight high-speed beams of electrons through its sharp nanotube tips a phenomenon called field emission.

When a strong electric field is applied it pulls streams of electrons off the surface of the cathode creating the electron beam.

it only needs the electric field already generated by an accelerator to siphon the electrons off a process dubbed field emission n

or out of the samarium nickelate when an electric field is applied, regardless of temperature, so the device can be operated in the same conditions as conventional electronics.

"Just by applying an electric field, you're dynamically controlling how light interacts with this material."

Graphene has been used among other things to design FETSEVICES that regulate the flow of electrons through a channel via a vertical electric field directed into the channel by a terminal called a gate.

when they exposed it to an electric field. The metal layer was encased in the dielectric material silicon dioxide

Further, the electric field can be used to change the shape and size of the filament, or break the filament altogether,

Sharks don t generate their own electric field. Instead they have sensors that can pick up electric signals

Sharks can sense electric fields of creatures around them. Perhaps the don't eat me markings would be benifical in that case...

The electric field of the laser beams creates what known as a periodic potential landscape, similar to an egg carton,

Other systems have been developed to control boiling using electric fields, but these have required special fluids rather than water,

The electric field of the laser beams creates what known as a periodic potential landscape, similar to an egg carton,

Other systems have been developed to control boiling using electric fields, but these have required special fluids rather than water,

In contrast to non-polarized light, in which the electric fields of the photons are oriented in random directions,

whether linear or circular, features electric fields oriented in a single plane. With circularly polarized light,

the frequency is high enough that the plasma breakdown threshold for surface electric fields increases The terahertz approach also allows them to use readily available picoseconds lasers.

Special nanoparticles, so-called phosphors, are excited in an electric field to emit light. Researchers at the INM Leibniz Institute for New Materials have developed now a new method that enables electroluminescence on large

Conventional biomolecule sorting systems rely on external electric fields infrared radiation, and magnetic fields, and often require chemical modifications of the biomolecules of interest.

pressure or electric field pulses is as follows: while a first pulse excites the sample under study, a second pulse monitors the change in the sample.

The sample can be stimulated with laser, pressure, electric field or magnetic field pulses. The principle was tested at the HZDR on a typical laboratory laser as well as on the free-electron laser FELBE.

and respond in a cooperative manner to the applied electric field. This allowed for the emergence of switchable and stable polarization,

which involves subjecting the cells to an electric field that temporarily makes their membranes permeable, allowing the CRISPR/Cas9 molecule to enter.

The electric field from the polarized strontium titanate was leaking into the topological insulator layer, changing its electronic properties.

Other systems have been developed to control boiling using electric fields, but these have required special fluids rather than water,

where an electric field is used to induce magnetism; however, this mechanism is limited often to the top monolayer of atoms of the crystal lattice only.

increasing the velocity of particle transport by 100 times by applying an alternating current electric field in conjunction with heating the plasmonic nanoantenna using a laser to induce a force far stronger than otherwise possible."

and an electric field, inducing an"electrothermoplasmonic flow.""""Then, once we turn off the electric field the laser holds the particles in place,

so it can operate in two modes. First, the fast transport using alternating current, and then you turn off the electric field

and it goes into the plasmonic tweezing mode, "he said. The Purdue researchers are the first to induce electrothermoplasmonic flow using plasmonic structures.

These negatively charged ions produce an electric field that effectively serves as a diode to hinder error-causing crosstalk.

pressure or electric field pulses is as follows: while a first pulse excites the sample under study, a second pulse monitors the change in the sample.

The electric field from the polarized strontium titanate was leaking into the topological insulator layer, changing its electronic properties.

The team successfully suspended glass particles 400 nanometres across in a vacuum using an electric field,

"Our solution was to combine the laser beam that cools the glass particle with an electric field

"The electric field also gently moves the glass particle around inside the laser beam, helping it lose temperature more effectively."

Additionally, the scientists also focus on developing other triggers for switching the adhesion like light, magnetic field, electric field or changes in temperature.

"This is an electron wave in a phosphorus atom, distorted by a local electric field. Unlike conventional computers that store data on transistors and hard drives, quantum computers encode data in the quantum states of microscopic objects called qubits.

can be controlled using electric fields, instead of using pulses of oscillating magnetic fields, "explained UNSW's Dr Arne Laucht,

using a very localized electric field.""This distortion at the atomic level has the effect of modifying the frequency at

"The findings suggest that it would be possible to locally control individual qubits with electric fields in a large-scale quantum computer using only inexpensive voltage generators, rather than the expensive high-frequency microwave sources.

which the built-in electric field creates a well which traps and protects charge carriers. This opens up the possibility of creating entirely new classes of organic electronic devices

These negatively charged ions produce an electric field that effectively serves as a diode to hinder error-causing crosstalk.

This shift of electric charge occurs as the manganese atomic layers form atomically charged capacitors leading to the build up of an electric field, known as polar catastrophe

The team plans to use local electric fields to controllably turn on/off the magnetism of its 5-layer films

Like all light, laser pulses feature electric fields that normally point in many directions. Polarizing a laser pulse aligns these fields along one direction,

creating the intense internal electric field. This field now becomes the dominating factor in determining the emission properties.

An experimental setup to measure electric fields with extremely high temporal resolution and sensitivity has made now it possible to directly detect vacuum fluctuations,

Applying an electric field can send these ions streaming away from the satellite at high speeds

This electron wave creates a trailing wave-shaped electric field structure on which the electrons surf and by

which are particularly effective at tunneling the signals from the electric field of nearby objects to the receiving electrode in a way that maximizes sensitivity.

which gave rise to the very high electric field necessary to generate a long-term and dense plasma with little energy.

Low temperature plasmas are formed by applying a high electric field across a gas using an electrode, which breaks down the gas to form plasma.

These new observations of radiation resulting from broken symmetry of the electric field may provide some link between the two fields.

The researchers determined that the reason for this phenomenon is due to symmetry breaking of the electric field associated with the electron acceleration.

there is symmetry of the electric field. Symmetry breaking can also apply in cases such as a pair of parallel wires in which electrons can be accelerated by applying an oscillating electric field."

"In aerials, the symmetry of the electric field is broken'explicitly 'which leads to a pattern of electric field lines radiating out from a transmitter,

such as a two wire system in which the parallel geometry is broken, '"said Sinha. The researchers found that by subjecting the piezoelectric thin films to an asymmetric excitation,

the symmetry of the system is broken similarly, resulting in a corresponding symmetry breaking of the electric field,

and the generation of electromagnetic radiation. The electromagnetic radiation emitted from dielectric materials is due to accelerating electrons on the metallic electrodes attached to them

as Maxwell predicted, coupled with explicit symmetry breaking of the electric field.""If you want to use these materials to transmit energy,

can be controlled using electric fields, instead of using pulses of oscillating magnetic fields, "explained UNSW's Dr Arne Laucht,

using a very localized electric field.""This distortion at the atomic level has the effect of modifying the frequency at

In these states, the electric field is either perpendicular to the radial axis or radial at each given point."

what gives rise to the very high electric field necessary to generate a long-term and dense plasma with little energy.

which is so short that the electric field oscillates only twice. These characteristics, in combination with its coherence, make the light source a compact and ultrasensitive molecular detector.

The electric field of the laser beams creates what known as a periodic potential landscape, similar to an egg carton,

Shannon Hilton and Paul Jones The microfluidic technology, developed in the lab of professor Mark Hayes in the Department of chemistry and Biochemistry at Arizona State university, uses microscale electric field gradients, acting on extremely small samples,

The geometric features of the channel shape the electric field creating regions of different intensity. This field creates the dielectrophoretic force that allows some cells to pass,

Other systems have been developed to control boiling using electric fields, but these have required special fluids rather than water,

Uhlmann first began working with cloaking theories in 2003, back then with electric fields in two dimensions.

Under a strong electric field the cathode emits tight high-speed beams of electrons through its sharp nanotube tips--a phenomenon called field emission.

and then a strong electric field stretches it out. The process is slow, however, and the number of nozzles per unit area is limited by the size of the pump hydraulics. The other approach is to apply a voltage between a rotating drum covered by metal cones and a collector electrode.

and the electric field causes the solution to travel to the top of the cones, where it emitted toward the electrode as a fiber.

When atoms travel across such an electric field, they are drawn to places of minimum potential in this case, the troughs.

when they pass such an electric field. The ion crystal is charged a atomic grid created by Vuletic to analyze the effects of friction, atom by atom.

which create a strong electric field intensity gradient, are key to inducing cantilever oscillations. Because the changes of the electromagnetic field in such systems are measured in tens of nanometers,

involves the application of an electric field that narrows the width of the reaction barrier, thereby allowing hydrogen atoms to tunnel away from the surface.

The pulse generates an electric field as well as injecting electrons into the sample. By using a new theoretical approach developed by Dr. Kajita,

the electric field reduces the width of the barrier, thereby allowing the hydrogen to desorb by quantum tunneling (Fig. 2). Lead author Prof.

For instance, electric fields could be used to extract hydrogen from a Tio2-based storage device e

#Grolltex to Commercialize Graphene Mass Production Technology with The Triton Fund Investment A University of California,

Other NIST researchers have demonstrated a new probe for making the first calibrated measurements of electric fields above 100 GHZ

we can create electric fields that attract and move around droplets containing any chemical solution, "said first author Alphonsus Ng who recently graduated with a Phd from the U of T Institute of Biomaterials and Biomedical engineering (IBBME) and Donnelly Centre,

and the liquid solution is guided onto the mold by an electric field the process is called electrospinning. it evenly coats

Thus the electric field created between the two electrodes causes the flow of these particles back and forth.

The electrons at the center of the spirals are driven pretty vigorously by the laser electric field.

and the electric field causes the solution to travel to the top of the cones, where it emitted toward the electrode as a fiber.

The distortion results from the fact that an electric charge positioned near a metallic surface will produce just such an electric field

The electrons at the center of the spirals are driven pretty vigorously by the laser's electric field.

Jlich researchers develop ultrahigh-resolution 3-D microscopy technique for electric fields July 7th, 2015new Biosensor Produced in Iran to Detect Effective Drugs in Cancer Treatment July 4th,

Duan and his team used a technique called electric field-induced enhancement, which relocates the electrons from a dark state to a luminescent state,

The hybrid sol-gel materials had shown potential for efficient dielectric energy storage because of their high orientational polarization under an electric field,

when we apply an electric field is that the polarization response -which measures how much the polar groups line up in a stable way with the field-behaves in a linear way,

The electrons at the center of the spirals are driven pretty vigorously by the lasers electric field.

we can create electric fields that attract and move around droplets containing any chemical solution, "says first author Alphonsus Ng who recently graduated with a Phd from the U of T Institute of Biomaterials and Biomedical engineering (IBBME) and Donnelly Centre,

the characteristic that controls how polarized atoms interact with external electric fields. The researchers who published their results this month in the American Chemical Society Journal of Physical chemistry Letters discovered they could calculate the flexoelectric effect of graphene rolled into a cone of any size and length.

which can literally sense different physical quantities such as electric field, temperature or vibrations through the inside of this hollow-core photonic crystal fibre.

which flies through the hollow channel in the interior of a photonic crystal fibre to measure different physical quantities, for example the electric field along the optical fibre.

whether hollow-core photonic crystal fibres are suitable as sensors by initially using the fibres to measure electric fields, vibrations and temperatures.

In an electric field it is deflected therefore from the centre of the channel to its edge,

The loss here is proportional to the strength of the electric field, and it is thus possible to determine the field from a distance.

Electric fields and vibrations can be distinguished by the behaviour of beads carrying different levels of charge.

Electric fields vibrations and temperatures, and thus three quantities that are relevant in these installations, could be recorded with a single measuring instrument t

Forschungszentrum Jlich)" Our method is the first to image electric fields near the surface of a sample quantitatively with atomic precision on the subnanometre scale,

Such electric fields surround all nanostructures like an aura. Their properties provide information, for instance, on the distribution of charges in atoms or molecules.

To image electric fields up until now, scientists have used the entire front part of the scanning tip as a Kelvin probe.

but rather two electric fields that act on the mobile electron of the molecular sensor: the first is the field of a nanostructure being measured,

we can create a very sharp image of the electric field of the sample. Its a bit like a camera with very small pixels."

But existing electroporation methods require high electric field strengths and for cells to be suspended in solution,

You could come along with a tip that produces a certain electric field and just by putting it near the oxide you could change its polarity Martin said.

temperature, chemicals, electric field or magnetic field. These various stimuli can be used to make the materials change colour,

However, on application of electric field, things take an interesting turn. When the gold plating over the miniature robots interacts with an alternating electrical field passing through them,