News tagged with mechanical strain
UK scientists develop optimum piezoelectric energy harvesters
Scientists working as part of the Metrology for Energy Harvesting Project have developed a new model to deliver the maximum power output for piezoelectric energy harvesters.
Mar 02, 2012 |
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Prion proteins play powerful role in survival, evolution of wild yeast strains
Prions, the much-maligned proteins most commonly known for causing "mad cow" disease, are commonly used in yeast to produce beneficial traits in the wild. Moreover, such traits can be passed on to subsequent generations and ...
Feb 15, 2012 |
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Most stretchable spider silk reported
The egg sac silk of the cocoon stalk of the cave spider Meta menardi is the most stretchable egg sac silk yet tested, according to a study published Feb. 8 in the open access journal PLoS ONE.
Feb 08, 2012 |
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Dealing with stress: New research highlights the survival skills of disease-causing E. coli
Escherichia coli bacteria thrive in the lower intestine of humans and other animals, including birds. Most are vital constituents of the healthy gut flora, but certain forms of E. coli cause a range of di ...
Jan 30, 2012 |
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Chemists reveal the force within you
A new method for visualizing mechanical forces on the surface of a cell, reported in Nature Methods, provides the first detailed view of those forces, as they occur in real-time.
Nov 09, 2011 |
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Zinc oxide microwires improve the performance of light-emitting diodes
Researchers have used zinc oxide microwires to significantly improve the efficiency at which gallium nitride light-emitting diodes (LED) convert electricity to ultraviolet light. The devices are believed to ...
Oct 31, 2011 |
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Study discovers amazing electrical properties in polymers
(PhysOrg.com) -- Crystals and ceramics pale when compared to a material researchers at Oak Ridge National Laboratory discovered that has 10 times their piezoelectric effect, making it suitable for perhaps hundreds of everyday ...
Sep 23, 2011 |
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Raiders of the lost amp
Energy harvesting is a process that captures energy that would otherwise be lost as heat, light, sound, vibration or motion. It can use this captured energy to improve the efficiency of existing systems or even to power new ...
Jul 05, 2011 |
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Most powerful millimeter-scale energy harvester generates electricity from vibrations
(PhysOrg.com) -- Electrical engineers at the University of Michigan have built a device that can harness energy from vibrations and convert it to electricity with five to ten times greater efficiency and power ...
Apr 26, 2011 |
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Piezotronics: Researchers create new class of piezoelectric logic devices using zinc oxide nanowires
Researchers at the Georgia Institute of Technology have developed a new class of electronic logic device in which current is switched by an electric field generated by the application of mechanical strain ...
Sep 02, 2010 |
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Fungi can change quickly, pass along infectious ability
Fungi have significant potential for "horizontal" gene transfer, a new study has shown, similar to the mechanisms that allow bacteria to evolve so quickly, become resistant to antibiotics and cause other serious ...
Mar 17, 2010 |
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Novel biomarkers in heart failure
Several new biomarkers have been recently described in Heart Failure (HF) syndrome either in stable chronic patients as in the settings of acute decompensation. Biomarkers are used to diagnose disease risk, to predict outcome ...
Medicine & Health / Medical research
May 30, 2009 |
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How cells handle broken chromosomes
(PhysOrg.com) -- After being recognized and initially processed by the cellular machinery, the broken chromosome is extensively scanned for homology and the break itself is later tethered to the nuclear envelope. Thus the ...
Feb 13, 2009 |
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