News tagged with electrical voltage

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Researchers can precisely manipulate polarization in nanostructures

Researchers can precisely manipulate polarization in nanostructures

Nanotechnology / Nanophysics

created Oct 22, 2009 | popularity not rated yet | comments 2

(PhysOrg.com) -- Researchers from the MESA+ Institute for Nanotechnology at the University of Twente, The Netherlands, working with American researchers, have succeeded in using an electrical signal to control ...


Reveal the enemy

Carbon nanotubes and aptamers: Vew biosensor detects extremely low bacteria concentrations quickly, easily, reliably

Chemistry / Analytical Chemistry

created Jul 20, 2009 | popularity 5 / 5 (1) | comments 0

(PhysOrg.com) -- Bacterial diseases are usually detected by first enriching samples, then separating, identifying, and counting the bacteria. This type of procedure usually takes at least two days after arrival ...


Molecules which flip into their own mirror image

Molecules which flip into their own mirror image

Nanotechnology / Nanophysics

created May 29, 2009 | popularity 3 / 5 (2) | comments 0

Catalysts do function, despite the fact that not all the chemical reactions (and partial reactions) which occur are fully understood, including those which take place during the treatment of automobile exhaust. ...





Search results for electrical voltage


Switchyard for single electrons

Physics / General Physics

created Feb 25, 2008 | popularity 4.4 / 5 (7) | comments 0

German scientists achieved to transfer very small charge "packets", comprising a well-defined number of few electrons, between metallic electrons precisely by using a single-electron pump. A single-electron transistor, being ...


Gallium nitride transistor could replace silicon

Gallium nitride transistor could replace silicon

Physics / General Physics

created Dec 08, 2009 | popularity 4.7 / 5 (36) | comments 6

(PhysOrg.com) -- A Cornell researcher has created an extremely efficient transistor made from gallium nitride, which may soon replace silicon as king of semiconductors for power applications.


Panasonic Develops a Gallium Nitride (GaN) Power Transistor with Ultra High Breakdown Voltage over 10000V

Panasonic Develops a Gallium Nitride (GaN) Power Transistor with Ultra High Breakdown Voltage over 10000V

Electronics / Hardware

created Dec 13, 2007 | popularity 3.9 / 5 (15) | comments 1

Panasonic today announced the development of a Gallium Nitride (GaN) power transistor with the ultra high breakdown voltage over 10000V. This breakdown voltage is more than 5 times higher than previously reported ...


High-speed signal mixer demonstrates capabilities of transistor laser

High-speed signal mixer demonstrates capabilities of transistor laser

Physics / General Physics

created Mar 19, 2009 | popularity 5 / 5 (1) | comments 0

(PhysOrg.com) -- Scientists at the University of Illinois have successfully demonstrated a microwave signal mixer made from a tunnel-junction transistor laser. Development of the device brings researchers ...


Electrical circuit runs entirely off power in trees

Electrical circuit runs entirely off power in trees

Technology / Engineering

created Sep 08, 2009 | popularity 3.7 / 5 (19) | comments 15

You've heard about flower power. What about tree power? It turns out that it's there, in small but measurable quantities. There's enough power in trees for University of Washington researchers to run an electronic ...


Schematic Section of a Plant Leaf

Novel electric signals in plants

Chemistry / Biochemistry

created Mar 09, 2009 | popularity 4 / 5 (1) | comments 1

Using ion-selective micro-electrodes electrical signals in plants moving from leaf to leaf could be measured. The speed of the signals spreading as voltage changes over cell membranes ranged from 5 to 10 cm ...


Many devices don't require a converter

Technology / Other

created Apr 22, 2009 | popularity 2 / 5 (1) | comments 0

Q. We will be sailing in the Greek Islands on a 32-foot boat in May, and I am wondering how to properly charge our various electronic gadgets -- an e-book reader, camera and phone -- so I don't wreck any of them. What should ...


Disorder Enables Extreme Sensitivity in Piezoelectric Materials

Physics / Condensed Matter

created May 14, 2008 | popularity 4.3 / 5 (7) | comments 0

A research team working at the National Institute of Standards and Technology has found an explanation for the extreme sensitivity to mechanical pressure or voltage of a special class of solid materials called relaxors. The ...


Researchers Design Electronic Amplifier Capable of Functioning in Extreme Temperatures

Researchers Design Electronic Amplifier Capable of Functioning in Extreme Temperatures

Technology / Engineering

created Mar 09, 2009 | popularity 5 / 5 (4) | comments 0

(PhysOrg.com) -- Missions to space require 'warm' boxes, which protect electronic circuitry from extreme temperatures and exposure to radiation. Electrical engineering researchers at the University of Arkansas ...


Researchers catch ion channels in their opening act

Chemistry /

created Jul 10, 2008 | popularity 4.7 / 5 (6) | comments 0

Each thought or action sends a million electrical signals pulsing through your body. At the heart of the process of generating these electrical impulses is the ion channel.



List of search results for electrical voltage