Acoustic Imaging Current Events | Acoustic Imaging News
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First acoustic metamaterial 'superlens' created by U. of I. researchers
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 structural testing of buildings and bridges, and novel underwater stealth technology. view more (2009-06-25)
Seismic research without artificial source
Researchers at TU Delft have made progress in the theoretical foundation of a special subsoil imaging technique. This technique could be used to chart underground mineral resources, it is called "acoustic daylight imaging". The method uses natural acoustic signals, already present in the earth, to create an image of the subsurface... view more... (2004-12-21)
Lasers Generate Underwater Sound
Scientists at the Naval Research Laboratory are developing a new technology for use in underwater acoustics. The new technology uses flashes of laser light to remotely create underwater sound. view more (2009-09-08)
Singing in the rainforest: Public vs. private signaling by a tropical rainforest bird
According to the Chinese proverb, a bird sings because it has a song, not because it has an answer. A team of French and Brazilian researchers, however, may have the answer as to how the song of Brazilian white-browed warbler has become so well-adapted to the acoustic properties of the rainforest environment. view more (2008-02-13)
Visualizing atomic-scale acoustic wavesin nanostructures
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 useful probes of nanostructures such as LED lights. view more (2008-07-07)
Acoustic noise contains valuable information
The proper processing of acoustic noise can provide a wealth of information. Geophysicists have used seismic background noise measurements to reconstruct the crustal structure under Southern California. view more (2006-12-08)
Preserving hearing with ear tumor removal
Even when they're extremely small, tumors on the nerves that connect the brain to the ear can wreak havoc on a person's hearing and balance. But removing them is a delicate process that can, in some cases, cause further harm. view more (2006-02-28)
Guam rhino beetles got rhythm
In May 2008 the island of Guam became a living laboratory for scientists as they attached acoustic equipment to coconut trees in order to listen for rhinoceros beetles. view more (2009-04-14)
New phenomenon in physics discovered on illumination of metal surfaces
Scientific research at the Centre of the Physics of Materials, a mixed venture of the Higher Council for Scientific Research (CSIC) and the University of the Basque Country (UPV/EHU) in Donostia-San Sebastian, has enabled the discovery of a new physical phenomenon that affects the surfaces of illuminated metals. view more (2007-07-12)
Berkeley researchers create first hyperlens for sound waves
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 National Laboratory (Berkeley Lab), the acoustic hyperlens provides an eightfold boost in the magnification power of sound-based... view more... (2009-10-26)
Innovative acoustic guitar designed at Loughborough
Unlike traditional wooden acoustic guitars, the primary sound-generating components of this new instrument are constructed from plastics. Designer Owain Pedgley, a former PhD student at Loughborough who worked on the guitar in collaboration with leading English luthier Rob Armstrong, said, "This new instrument pushes forward the boundaries of... view more... (1999-11-09)
Light and sound -- the way forward for better medical imaging
Detection and treatment of tumours, diseased blood vessels and other soft-tissue conditions could be significantly improved, thanks to an innovative imaging system being developed that uses both light and sound. view more (2007-12-13)
Excitation pattern peak is more important determinant of vowel quality
The perceptions of five Chinese vowel /u, o, a, y, i/ and many perceptional phenomena can be explained well by the excitation pattern peaks. The study is reported in Science in China, Series F-Information Sciences, Volume 52，Issues 10 (Oct, 2009). view more (2009-11-06)
'Invisibility cloaks' could break sound barriers
Contrary to earlier predictions, Duke University engineers have found that a three-dimensional sound cloak is possible, at least in theory. view more (2008-01-10)
Litter at sea means a bellyful of plastic
Rob Edwards, Texel, The Netherlands view more (2005-01-05)
A&T professor has technology to monitor bridge safety
North Carolina A&T State University has developed a technology that could have possibly prevented the bridge collapse in Minneapolis, Minnesota. view more (2007-08-06)
New acoustic absorber to improve physiotherapy ultrasound machines
Physiotherapy ultrasound machines are commonplace in medicine and sports injury treatment but limitations with current calibration equipment mean they may be producing inaccurate doses that could lead to further injury. view more (2007-09-25)
Mobile phone use and acoustic neuroma
A study from the Institute of Environmental Medicine (IMM) at Karolinska Institutet, Sweden, found that 10 or more years of mobile phone use increase the risk of acoustic neuroma and that the risk increase was confined to the side of the head where the phone was usually held. No indications of an increased risk for less than 10 years of mobile... view more... (2004-10-13)
Groundbreaking polymer guitars close in on market
British inventors are showcasing a range of innovative, high quality acoustic and electric guitars made almost entirely from polymers. The three models, a hybrid wood / polymer acoustic, an all polymer acoustic and a semi-hollow electric, feature patented foamed polymer technology that gives outstanding sound quality. view more (2005-05-06)
Whale songs are heard for the first time around New York City waters
For the first time in waters surrounding New York City, the beckoning calls of endangered fin, humpback and North Atlantic right whales have been recorded, according to experts from the Bioacoustics Research Program at the Cornell Lab of Ornithology and the New York State Department of Environmental Conservation (DEC). view more (2008-09-17)
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