News tagged with negative voltage
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Gallium nitride transistor could replace silicon
Dec 08, 2009 |
4.7 / 5 (35) |
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) Inverter IC for Motor Drive with High Efficiency
Dec 08, 2009 |
5 / 5 (2) |
0
Panasonic today announced the development of a Gallium Nitride (GaN) -based monolithic inverter integrated circuit (IC) for motor drive. The integrated six GaN-based transistors can be independently driven ...
Spirit Rover: Rear Wheel Trouble Continues
Space & Earth / Space Exploration
Dec 10, 2009 |
4.8 / 5 (5) |
0
(PhysOrg.com) -- Results of diagnostic tests on Spirit's right-rear wheel on Sol 2109 (Dec. 8, 2009) continue to indicate a troubled wheel, which may leave the rover with only four operable wheels.
Disease-free, overall survival inferior for black women with HR-positive breast cancer
Dec 11, 2009 |
1 / 5 (1) |
1
Black women with hormone receptor (HR)-positive breast cancer had worse disease-free and overall survival, according to data presented at the CTRC-AACR Annual San Antonio Breast Cancer Symposium, held Dec. 9-13, 2009.
Article Traces History of Darwinian Medicine
Dec 10, 2009 |
not rated yet |
0
(PhysOrg.com) -- Despite being a founding principle of modern biology for 150 years, evolutionary theory has played a limited role in the field of medicine. Only in the last 20 years has Darwinian medicine emerged as a discipline ...
Elusive 'hot' electrons captured in ultra-thin solar cells
Dec 11, 2009 |
4.5 / 5 (12) |
3
Boston College researchers have observed the "hot electron" effect in a solar cell for the first time and successfully harvested the elusive charges using ultra-thin solar cells, opening a potential avenue to improved solar ...
Money changes what we think is fair, research finds
Medicine & Health / Psychology & Psychiatry
Dec 09, 2009 |
4 / 5 (1) |
1
Thinking of rewarding your sales department for a job well done? You might not want to make cash part of the pay-off.
Children's TV has questionable political themes, study shows
Other Sciences / Social Sciences
Dec 08, 2009 |
3 / 5 (2) |
1
Most parents know to screen television shows for sex, violence or other negative messaging—but what about children's shows themselves?
Study shows link between working memory and reactive parenting
Medicine & Health / Psychology & Psychiatry
Dec 08, 2009 |
5 / 5 (1) |
0
Any parent knows that sometimes maintaining your cool with misbehaving children is a challenge. We all have times when we get frustrated or angry and lash out at someone without thinking. A new study by psychologists at ...
Novel detection method unmasks circulating breast cancer cells
Dec 12, 2009 |
not rated yet |
0
Circulating metastatic breast cancer cells can lose their epithelial receptors, a process that enables them to travel through the bloodstream undetected, according to research from The University of Texas M. D. Anderson Cancer ...
List of search results for negative voltage
