News tagged with highest frequency
Visualizing atomic-scale acoustic wavesin nanostructures
Jul 03, 2008 |
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Acoustic waves play many everyday roles - from communication between people to ultrasound imaging. Now the highest frequency acoustic waves in materials, with nearly atomic-scale wavelengths, promise to be ...
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Shifting sound to light may lead to better computer chips
Mar 16, 2009 |
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By reversing a process that converts electrical signals into sounds heard out of a cell phone, researchers may have a new tool to enhance the way computer chips, LEDs and transistors are built.
Scientists Develop World's Fastest Graphene Transistor
Dec 19, 2008 |
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(PhysOrg.com) -- IBM Researchers today announced that they demonstrated the operation of graphene field-effect transistors at GHz frequencies, and achieved the highest frequencies reported so far using this ...
Toshiba Announces Gallium Nitride Power FET with World's Highest Output Power in Ku-band
Oct 09, 2007 |
4.3 / 5 (8) |
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Toshiba Corporation today announced that it has developed a gallium nitride (GaN) power field effect transistor (FET) for the Ku-band (12GHz to 18GHz) frequency range that achieves an output power of 65.4W ...
Researchers push resonator frequency limit
Mar 14, 2008 |
4.6 / 5 (34) |
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Many researchers in microelectromechanical systems (MEMS) have focused on resonators -- tiny devices that vibrate at radio frequencies -- to replace quartz crystals and other oscillators and can be economically ...
If the diabetes has a direct carcinogenetic effect?
Oct 29, 2008 |
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The association of DM2 with solid tumors, and particularly with HCC, has been long suspected and several studies have reported increased mortality rates for neoplastic diseases in patients with DM2. However, the temporal ...
Study examines prevalence of hearing loss in the US
Jul 28, 2008 |
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Hearing loss may be more prevalent in American adults than previously reported, according to a study in the July 28 issue of Archives of Internal Medicine, one of the JAMA/Archives journals.
Examining genetic variations among the Huichol population of Mexico
Oct 26, 2009 |
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Mexican researchers examined the polymorphisms of three enzymes -- alcohol dehydrogenase (ADH1B), aldehyde dehydrogenase (ALDH2) and cytochrome P4502E1 (CYP2E1) -- in the Mestizo and Huichol groups.The Huichols, an indigenous ...
New research shows consistency in synaesthetic experiences
Medicine & Health / Psychology & Psychiatry
Apr 29, 2008 |
3.7 / 5 (3) |
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A quirky psychological phenomenon known as “grapheme-color synaesthesia” describes individuals who experience vivid colors whenever they see, hear, or think of ordinary letters and digits. A hallmark of synaesthesia is that ...
1 in 10 children using cough, cold medications
Medicine & Health / Medications
Aug 04, 2008 |
4 / 5 (1) |
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Researchers from Boston University's Slone Epidemiology Center have found that approximately one in ten U.S. children uses one or more cough and cold medications during a given week. These findings appear in the August issue ...
Mediterranean diet associated with lower risk of cognitive impairment
Feb 09, 2009 |
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Eating a Mediterranean diet appears to be associated with less risk of mild cognitive impairment—a stage between normal aging and dementia—or of transitioning from mild cognitive impairment into Alzheimer's disease, according ...
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