News tagged with breakdown

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Digital quantum battery

Digital Quantum Battery Could Boost Energy Density Tenfold

Physics / Quantum Physics

created Dec 22, 2009 | popularity 4.9 / 5 (33) | comments 13

(PhysOrg.com) -- Physicists theorize that quantum phenomena could provide a major boost to batteries, with the potential to increase energy density up to 10 times that of lithium ion batteries. According to ...


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.


Storing a Lightning Bolt in Glass for Portable Power

Storing a Lightning Bolt in Glass for Portable Power

Physics / Condensed Matter

created May 05, 2009 | popularity 4 / 5 (21) | comments 9

(PhysOrg.com) -- Materials researchers at Penn State University have reported the highest known breakdown strength for a bulk glass ever measured. Breakdown strength, along with dielectric constant, determines ...


Rethinking Alzheimer's disease and its treatment targets

Medicine & Health / Neuroscience

created Sep 22, 2009 | popularity 4.8 / 5 (5) | comments 2

(PhysOrg.com) -- Psychiatry professor George Bartzokis introduces a new theory about the fundamental cause of Alzheimer's and other neurodegenerative diseases.


Graphene Shows High Current Capacity and Thermal Conductivity

Graphene Shows High Current Capacity and Thermal Conductivity

Nanotechnology / Nanomaterials

created Jul 29, 2009 | popularity 4.9 / 5 (13) | comments 1

(PhysOrg.com) -- Recent research into the properties of graphene nanoribbons provides two new reasons for using the material as interconnects in future computer chips. In widths as narrow as 16 nanometers, ...


Researchers discover new antituberculosis compounds

Medicine & Health / Research

created Sep 16, 2009 | popularity 4.9 / 5 (7) | comments 0

Attempts to eradicate tuberculosis (TB) are stymied by the fact that the disease-causing bacteria have a sophisticated mechanism for surviving dormant in infected cells. Now, a team of scientists led by researchers from Weill ...


Coroner: Self-help course led to woman's suicide (AP)

Coroner: Self-help course led to woman's suicide

Medicine & Health / Health

created Dec 08, 2009 | popularity 5 / 5 (3) | comments 0

(AP) -- An Australian coroner said Tuesday that participation in an intense self-help course led a woman to suffer a psychotic breakdown before she stripped naked and leaped to her death from an office window ...


Disabling enzyme allows mice to gorge without becoming obese, new study finds

Medicine & Health / Research

created Jan 11, 2009 | popularity 5 / 5 (13) | comments 1

Researchers at the University of California, Berkeley, have identified a new enzyme that plays a far more important role than expected in controlling the breakdown of fat. In a new study to be published Jan. 11 in the journal ...


Muscle: 'Hard to build, easy to lose' as you age

Medicine & Health / Research

created Sep 11, 2009 | popularity 5 / 5 (12) | comments 3

(PhysOrg.com) -- Have you ever noticed that people have thinner arms and legs as they get older? As we age it becomes harder to keep our muscles healthy. They get smaller, which decreases strength and increases the likelihood ...


High urea levels in chronic kidney failure might be toxic after all

Medicine & Health / Research

created Dec 02, 2009 | popularity not rated yet | comments 0

It is thought that the elevated levels of urea (the byproduct of protein breakdown that is excreted in the urine) in patients with end-stage kidney failure are not particularly toxic.


Google's openness intensifies focus on e-mail woes

Technology / Internet

created Mar 12, 2009 | popularity 4 / 5 (1) | comments 1

(AP) -- Google Inc.'s recent pledge to be more open about periodic service outages appears to be drawing more attention to the breakdowns when they occur, even if it's a minor hiccup affecting a sliver of its users.


Blue bananas

Blue bananas: Ripening bananas glow an intense blue under black light

Chemistry /

created Oct 17, 2008 | popularity 3.8 / 5 (37) | comments 8

(PhysOrg.com) -- Ripe bananas are of course yellow. However, under black light, the yellow bananas are bright blue, as discovered by scientists at the University of Innsbruck (Austria) and Columbia University ...


ORNL, Los Alamos pioneer new approach to assist scientists, farmers

Space & Earth / Environment

created Nov 19, 2009 | popularity 3 / 5 (1) | comments 0

Sustainable farming, initially adopted to preserve soil quality for future generations, may also play a role in maintaining a healthy climate, according to researchers at the Department of Energy's Oak Ridge and Los Alamos ...


New approach for growing bone

Medicine & Health / Research

created Oct 07, 2009 | popularity not rated yet | comments 0

The natural cycle of building bone to maintain skeletal strength and then breaking it down for the body's calcium needs is delicately balanced, but diseases like osteoporosis break down too much bone without adequate bone ...


Polarizers may enhance remote chemical detection

Chemistry / Analytical Chemistry

created Mar 11, 2009 | popularity 5 / 5 (1) | comments 0

Chemists can analyze the composition of a suspected bomb -- without actually touching and possibly detonating it -- using a technique called laser-induced breakdown spectroscopy, or LIBS. The tool is also commonly used for ...