News tagged with acoustic waves
Implementing sustainable technology to monitor the integrity of the nation's bridges
Apr 16, 2009 |
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Today, humans perform visual inspections every two years of most of the nation's older bridges. But with a scarcity of inspectors and tens of thousands of bridges, that process can be long and laborious.
Engineers to investigate energy independent monitoring system for bridges
Feb 02, 2009 |
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Virginia Tech's Center for Intelligent Material Systems and Structures (CIMSS) has teamed with Physical Acoustics Corporation (PAC), of Princeton Junction, N.J., to develop a suite of new technologies to provide ...
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 ...
Search results for acoustic waves
'Invisibility cloaks' could break sound barriers
Jan 09, 2008 |
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Contrary to earlier predictions, Duke University engineers have found that a three-dimensional sound cloak is possible, at least in theory.
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.
First acoustic metamaterial 'superlens' created
Jun 24, 2009 |
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A team of researchers at the University of Illinois has created the world's first acoustic "superlens," an innovation that could have practical implications for high-resolution ultrasound imaging, non-destructive ...
First hyperlens for sound waves created
Oct 25, 2009 |
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Ultrasound and underwater sonar devices could "see" a big improvement thanks to development of the world's first acoustic hyperlens. Created by researchers with the U.S. Department of Energy's Lawrence Berkeley ...
Nuisance noise silenced by an acoustic cloak
Jun 13, 2008 |
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Researchers in Spain have proven that metamaterials, materials defined by their unusual man-made cellular structure, can be designed to produce an acoustic cloak - a cloak that can make objects impervious to sound waves, ...
Undersea WiFi can be made faster, says researcher
Sep 03, 2007 |
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As the United States and Canada take their first step toward establishing a cabled ocean observatory, a University of Missouri-Rolla researcher is trying to improve the speed of wireless underwater communication.
A sonic boom in the world of lasers
Jun 17, 2009 |
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It was an idea born out of curiosity in the physics lab, but now a new type of ‘laser’ for generating ultra-high frequency sound waves instead of light has taken a major step towards becoming a unique and highly useful 21st ...
New research suggests changes in underwater data communications
Oct 14, 2008 |
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An NJIT professor, who has discovered new communication channels in underwater environments and invented a technique to communicate data through these channels, will be honored later this month by the New Jersey Inventors ...
Sun's corona is both hot and kinky
Mar 06, 2008 |
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Astrophysicists are having a heated debate over the wave structure of the Sun’s Corona - a debate which may one day influence solar weather forecasting and the theory behind fusion reactors.
Micro honeycomb materials enable new physics in aircraft sound reduction
Sep 29, 2008 |
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Noise from commercial and military jet aircraft causes environmental problems for communities near airports, obliging airplanes to follow often complex noise-abatement procedures on takeoff and landing. It ...
List of search results for acoustic waves
