Quantcast

Latest Piezoelectricity Stories

2011-09-23 11:44:24

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 uses. ORNL's Volker Urban and colleagues at Technical University Aachen in Germany noticed the reverse piezoelectric effect - defined as creating a mechanical strain by applying an electrical voltage -- while conducting fundamental research on polymers. At first they didn't think...

2011-08-15 22:02:24

By combining two frontier technologies, spintronics and straintronics, a team of researchers from Virginia Commonwealth University has devised perhaps the world's most miserly integrated circuit. Their proposed design runs on so little energy that batteries are not even necessary; it could run merely by tapping the ambient energy from the environment. Rather than the traditional charge-based electronic switches that encode the basic 0s and 1s of computer lingo, spintronics harnesses the...

2011-08-04 09:00:00

PORTSMOUTH, N.H., Aug. 4, 2011 /PRNewswire/ -- Novocure, a commercial stage private oncology company, announced today that it has entered into a long-term supply agreement with ITT Electronic Systems, a subsidiary of global engineering and manufacturing conglomerate ITT Corporation (NYSE: ITT). ITT Electronic Systems supplies Novocure with the piezoelectric ceramic components used to manufacture the disposable electrodes for the NovoTTF-100A System, an FDA approved device indicated for the...

3440bb19954bcd9b6423f3d55e7cb169
2011-07-27 08:44:09

Biological interface Taking advantage of the unique properties of zinc oxide nanowires, researchers have demonstrated a new type of piezoelectric resistive switching device in which the write-read access of memory cells is controlled by electromechanical modulation. Operating on flexible substrates, arrays of these devices could provide a new way to interface the mechanical actions of the biological world to conventional electronic circuitry. The piezoelectrically modulated resistive memory...

2011-07-20 12:00:00

DALLAS, July 20, 2011 /PRNewswire/ -- Texas Instruments Incorporated (TI) (NYSE: TXN) today introduced the most highly integrated piezo haptic driver for mobile consumer and industrial designs. The DRV8662 features an integrated 105-V boost converter, power diode, and 50-V to 200-V peak-to-peak (Vpp) fully-differential amplifier, resulting in a solution size that is 50 percent smaller than leading competitors. The DRV8662 also lowers total solution cost by 40 percent compared to competing...

2011-03-29 19:48:15

Superlenses earned their superlative by being able to capture the "evanescent" light waves that blossom close to an illuminated surface and never travel far enough to be "seen" by a conventional lens. Superlenses hold enormous potential in a range of applications, depending upon the form of light they capture, but their use has been limited because most have been made from elaborate artificial constructs known as metamaterials. The unique optical properties of metamaterials, which include the...

2011-03-11 15:51:29

The droning of a car driving along the highway can be nerve-racking. Often, a driver cannot understand the passengers in the rear seat, not to mention the pianissimo on the car stereo. Actually, though, there are ways to drive this disruptive vibration out of the car. This is possible thanks to "smart materials" "“ intelligent materials that can tailor their own condition to changing situations with highest speed. The possible applications are diverse and promising "“ not just for...

2011-03-09 16:28:00

Rutgers researchers have identified a class of high-strength metal alloys that show potential to make springs, sensors and switches smaller and more responsive. The alloys could be used in springier blood vessel stents, sensitive microphones, powerful loudspeakers, and components that boost the performance of medical imaging equipment, security systems and clean-burning gasoline and diesel engines. While these nanostructured metal alloys are not new "“ they are used in turbine blades...

df3b9e161d67bb859ed5f4a09a38f7af1
2011-03-08 09:57:08

A key technical challenge of the joint ESA"“NASA LISA mission has been solved: how to maintain precise pointing of a laser beam across five million km of space. The next-decade Laser Interferometer Space Antenna (LISA) mission will look for ripples in spacetime "“ their existence predicted by Albert Einstein "“ known as gravitational waves. A trio of identical spacecraft will fly five million km apart in an equilateral triangle formation, linked by laser beams. A...

2011-02-22 12:30:00

NEW YORK, Feb. 22, 2011 /PRNewswire/ -- TBT Group Inc. will present at CleanEquity Monaco 2011; the conference is on March 3rd & 4th at the Sporting d'Hiver, Monaco. (Logo: http://photos.prnewswire.com/prnh/20110214/CL47472LOGO ) TBT Group Inc. was included, by expert selection, as one of the world's most inspiring cleantech companies, to present to industry-specific, senior financial and strategic investors, policy makers, legislators, end users and media. TBT is an innovative...


Word of the Day
penuche
  • A fudgelike confection of brown sugar, cream or milk, and chopped nuts.
'Penuche' is a variant of 'panocha,' a coarse grade of sugar made in Mexico. 'Panocha' probably comes from the Spanish 'panoja, panocha,' ear of grain.
Related