News tagged with electric voltage
Researchers develop battery-less chemical detector
(PhysOrg.com) -- Unlike many conventional chemical detectors that require an external power source, Lawrence Livermore researchers have developed a nanosensor that relies on semiconductor nanowires, rather ...
Apr 06, 2011 |
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MEMS thermal sensor detects pre-atherosclerotic lesions
A new study published in the Annals of Biomedical Engineering shows that a MEMS thermal sensor deployed by an angiogram catheter can detect the earliest stages of atherosclerosis. The MEMS thermal sensor used convective heat t ...
Mar 07, 2011 |
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Creasing to cratering: Voltage breaks down plastic (w/ Video)
A Duke University team has seen for the first time how soft polymers, such as wire insulation, can break down under exposure to electrical current.
Mar 04, 2011 |
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Electrifying new way to clean dirty water
(PhysOrg.com) -- University of Utah researchers developed a new concept in water treatment: an electrobiochemical reactor in which a low electrical voltage is applied to microbes to help them quickly and efficiently remove ...
Jan 06, 2011 |
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New family of liquid crystals created
(PhysOrg.com) -- Chemists at Vanderbilt University have created a new class of liquid crystals with unique electrical properties that could improve the performance of digital displays used on everything from ...
Oct 05, 2010 |
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Certain doped-oxide ceramics resist Ohm's Law
For months, Anthony West could hardly believe what he and his colleagues were seeing in the lab -- or the only explanation for the unexpected phenomena that seemed to make sense.
Sep 21, 2010 |
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Quick jolt of energy could improve energy harvesting by a factor of 40
(PhysOrg.com) -- Harvesting mechanical energy from the environment and converting it into electrical energy has recently become a viable method for powering low-energy electronics, such as sensors and actuators. ...
Jul 21, 2010 |
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Lightning really does make mushrooms multiply
(PhysOrg.com) -- Japanese farming folklore has it that lightning makes mushrooms multiply, and new research supports the idea. Mushrooms form a staple part of the diet in Japan, and the fungi are in such high ...
Apr 13, 2010 |
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New study has implications for understanding ion channel defects
(PhysOrg.com) -- A University of Wisconsin School of Medicine and Public Health team has made a discovery important to the millions of people who are on common medications for heart and neurological diseases.
Medicine & Health / Medical research
Feb 01, 2010 |
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Energy-harvesting rubber sheets could power pacemakers, mobile phones
Power-generating rubber films developed by Princeton University engineers could harness natural body movements such as breathing and walking to power pacemakers, mobile phones and other electronic devices.
Jan 27, 2010 |
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Electric cars rolling out
(PhysOrg.com) -- Electric vehicles are far from new, but we are still a long way from electric cars being the norm. Now two new electric cars may bring that goal a step closer.
Technology / Energy & Green Tech
Dec 16, 2009 |
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Gallium nitride transistor could replace silicon
(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.
Dec 08, 2009 |
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Researchers can precisely manipulate polarization in nanostructures
(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 ...
Oct 22, 2009 |
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Carbon nanotubes and aptamers: Vew biosensor detects extremely low bacteria concentrations quickly, easily, reliably
(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 ...
Chemistry / Analytical Chemistry
Jul 20, 2009 |
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Molecules which flip into their own mirror image
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. ...
May 29, 2009 |
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