News tagged with acoustic signature
Rainforest plant developed sonar dish to attract pollinating bats
The researchers discovered that a rainforest vine, pollinated by bats, has evolved dish-shaped leaves with such conspicuous echoes that nectar-feeding bats can find its flowers twice as fast by echolocation. The study is ...
Jul 28, 2011 |
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Aeroacoustics Research Could Quiet Unmanned Aerial Vehicles (UAVs)
(PhysOrg.com) -- Unmanned aerial vehicles (UAVs) are playing increasingly important roles in many fields. Ranging in size from the huge Global Hawk aircraft to hand-held machines, these remotely controlled ...
Jan 22, 2009 |
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New map of the universe reveals its history for the past six-billion years
The scientists of the Sloan Digital Sky Survey (SDSS), including astronomers at Penn State, have produced a new map of the universe that is in full color, covers more than one quarter of the entire sky, and ...
Jan 13, 2012 |
4.6 / 5 (9) |
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Calculating what's in the universe from the biggest color 3-D map
Since 2000, the three Sloan Digital Sky Surveys (SDSS I, II, III) have surveyed well over a quarter of the night sky and produced the biggest color map of the universe in three dimensions ever. Now scientists ...
Jan 11, 2012 |
4.9 / 5 (7) |
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Unique 'listening' technology tackles widespread fraud issues
Alaris, a joint venture startup company between ASU and Rolls-Royce, aims to tackle health care insurance fraud that is estimated to cost U.S. taxpayers more than $200 billion each year. This partnership was ...
Dec 15, 2011 |
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New software tool provides unprecedented searches of sound, from musical riffs to gunshots
Audio engineers have developed a novel artificial intelligence system for understanding and indexing sound, a unique tool for both finding and matching previously un-labeled audio files.
Nov 09, 2011 |
5 / 5 (2) |
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Researchers study infrasonic signals to warn pilots of volcanic ash at high altitudes
Ash spewed by volcanoes can reach altitudes that affect the safe transit of commercial aircraft. In fact there have been incidents of ash resulting in clogged engines, engine power loss and near crashes.
Oct 27, 2011 |
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To catch a speeding bullet
In 1992, East Palo Alto, a city of 24,000 on the San Francisco Peninsula, logged the highest homicide rate in the nation per capita. Gun violence and celebratory gunfire plagued citizens and police.
Aug 02, 2011 |
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Scientists model physics of a key dark-energy probe
Ohio State University researchers are leveraging powerful supercomputers to investigate one of the key observational probes of "dark energy," the mysterious energy form that is causing the expansion of the ...
Jul 12, 2011 |
3.3 / 5 (6) |
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Speaking with an accent keeps crossbills straight
(PhysOrg.com) -- A male bird uses his songs as pick-up lines. They're a way of saying, "Hey baby, come check me out."
May 30, 2011 |
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Measuring the distant universe in 3-D: BOSS proves it can do the job with quasars
The biggest 3-D map of the distant universe ever made, using light from 14,000 quasars – supermassive black holes at the centers of galaxies billions of light years away – has been constructed by ...
May 01, 2011 |
5 / 5 (8) |
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New device uses submarine technology to diagnose stroke quickly
A medical device developed by retired U.S. Navy sonar experts, using submarine technology, is a new paradigm for the detection, diagnosis and monitoring of stroke, says a team of interventional radiologists at the Society ...
Medicine & Health / Medical research
Mar 29, 2011 |
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