News tagged with voltage control
High-speed signal mixer demonstrates capabilities of transistor laser
Mar 19, 2009 |
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(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 ...
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'Voltage Patterning' could be next step in nanostructure lithography
Mar 02, 2009 |
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(PhysOrg.com) -- "What you want these days is to have precise control of nanostructures. Using masks and optical techniques, it is possible to control how nanostructures grow for use in practical applications," David Field ...
New 'control knobs' for stem cells identified
Biology /
Dec 03, 2008 |
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Natural changes in voltage that occur across the membrane of adult human stem cells are a powerful controlling factor in the process by which these stem cells differentiate, according to research published by Tufts University ...
Scientists Control Plasma Bullets
Feb 27, 2009 |
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(PhysOrg.com) -- On the nanoscale, things aren’t always what they seem. What first looked like a continuous plasma jet has turned out to be a train of tiny, high-velocity plasma bullets. Using a camera with ...
Researchers catch ion channels in their opening act
Jul 10, 2008 |
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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.
Many devices don't require a converter
Apr 22, 2009 |
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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
May 14, 2008 |
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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 can precisely manipulate polarization in nanostructures
Oct 22, 2009 |
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(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 ...
New plasma transistor could create sharper displays
Feb 04, 2009 |
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(PhysOrg.com) -- By integrating a solid-state electron emitter and a microcavity plasma device, researchers at the University of Illinois have created a plasma transistor that could be used to make lighter, ...
A new understanding of why seizures occur with alcohol withdrawal
Medicine & Health / Neuroscience
Oct 17, 2009 |
4.7 / 5 (3) |
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Epileptic seizures are the most dramatic and prominent aspect of the "alcohol withdrawal syndrome" that occurs when a person abruptly stops a long-term or chronic drinking habit. Researchers have shown that the flow of calcium ...
Scientists fabricate first plasma transistor
Nov 12, 2008 |
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Since their development in the 1940s, transistors have been at the heart of computers and other modern electronic devices. Transistors - whose job is to start, stop, or amplify electric current - come in all ...
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