For years scientists have been aware of the potential problems of antibiotics being present in wastewater, and the research of engineering professor Olya Keen is showing that treatments to clean wastewater may actually be creating new antibiotics and further contributing to the development of antibiotic resistance in the environment.
Columbia Engineering professor Changxi Zheng has developed a technique that enables hydrographic printing, a widely used industrial method for transferring color inks on a thin film to the surface of 3D objects, to color these surfaces with the most precise alignment ever attained. His new computational method, which simulates the printing process and predicts color film distortion during hydrographic immersion, generates a colored film that guarantees exact alignment of the surface textures to the object.
Play a flute in Carnegie Hall, and the tone will resonate and fill the space. Play that same flute in the Grand Canyon, and the sound waves will crash against the rock walls, folding back in sonic chaos. The disparity is clear – to the modern listener, the instrument belongs in an auditorium. "Distinct echoes would be totally unforgivable in today's performance spaces," says Steven J. Waller, an archaeo-acoustician. “But, in the past, people sought echoes."
Psychoacoustics identifies five basic types of emotional speech: angry, fearful, happy, sad and neutral. In order to fully understand what’s happening with speech perception, a research team at the University of Texas at Austin studied how depressed individuals perceive these different kinds of emotional speech in multi-tonal environments. They will present their findings at the 169th ASA meeting, held this week in Pittsburgh.
Virginia Tech researchers have developed a prototype of a dynamic sonar system inspired by horseshoe bats. The prototype was presented Wednesday (May 20) at the Acoustical Society of America meeting in Pittsburgh.
Engineers at Virginia Tech have taken the first steps toward building a novel dynamic sonar system inspired by horseshoe bats that could be more efficient and take up less space than current man-made sonar arrays. They are presenting a prototype of their "dynamic biomimetic sonar" at the 169th Meeting of the Acoustical Society of America held May 18-22, 2015 in Pittsburgh.
Recently, scientists from Swinburne University of Technology in Australia and the Commonwealth Scientific and Industrial Research Organization (CSIRO) have jointly demonstrated cream separation from natural whole milk at liter-scales for the first time using ultrasonic standing waves -- a novel, fast and nondestructive separation technique typically used only in small-scale settings.
Playing natural sounds such as flowing water in offices could boosts worker moods and improve cognitive abilities in addition to providing speech privacy, according to a new study from researchers at Rensselaer Polytechnic Institute. They will present the results of their experiment at the 169th Meeting of the Acoustical Society of America, held May 18-22, 2015 in Pittsburgh.
Babytalk, which includes higher-pitched voices and a wider range of pitches, is sometimes known as "motherese," partly because most research on parent-child interactions has traditionally focused on the mother's role. Scientists study this common behavior because they want to understand what role such speech patterns play in children’s language acquisition. But in an era of increased paternal involvement, researchers are investigating whether fathers modify their speech in the same way mothers do.
WHAT: Press Event Webcasts | Research from the ASA 169th Meeting DATE: Tuesday, May 19 TIME: "Noise and Health" @ 11:00 a.m. EDT; "New Discoveries in Acoustics" @ 2:00 p.m. EDT ONLINE REGISTRATION: http://www.aipwebcasting.com ONSITE LOCATION: Smithfield Room, Wyndham Grand Pittsburgh Downtown Hotel
Wind turbines causing cluckus interruptus in prairie chickens, tranquility at a conservation center, better blood pressure monitors with wearables, and a vibrational analysis of graphite tennis rackets are just some of the highlights from the lay-language versions of papers to be presented at the 169th ASA meeting, held May 18-22 in Pittsburgh. Summaries are posted online in the ASA’s Pressroom; many contain sounds, images, and videos. The entire collection can be found at http://acoustics.org/current-meeting.
Studies have shown that individuals with hearing loss or who are listening to degraded speech – think of a loud room -- have greater difficulty remembering and processing the spoken information than individuals who heard more clearly. Now researchers are investigating whether listening to accented speech similarly affects the brain's ability to process and store information. Their preliminary results suggest that foreign-accented speech, even when intelligible, may be slightly more difficult to recall than native speech.
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The same theory that explains individual differences in human speech has recently been applied to other members of the animal kingdom, including dogs and deer. Now researchers from Syracuse University in New York are working to understand whether individually distinctive vocal characteristics of North Atlantic right whales could be used to identify and track individuals -- a potentially useful tool for studying an endangered species that spends much of its life hidden under the water.
University of Washington researchers easily hacked a next generation teleoperated surgical robot to test how easily a malicious attack could hijack remotely-controlled operations in the future and to offer security solutions.
The Trace app developed at the University of Washington turns a digital sketch that you draw on your smartphone screen — heart, maple leaf, raindrop — into a walking route that you can send to a friend. The recipient of the "gift" receives step-by-step walking directions that eventually reveal the hidden shape on a map.
You could call a fusion engine a space travel hot rod. A 2014 paper that reports on developments in pulsed fusion propulsion that could rapidly propel U.S. manned flights to Mars has been named an AIAA Best Paper.
Two prominent HMS/Mass. Eye and Ear/Schepens faculty members will receive prestigious 2015 achievement awards today at ARVO Annual Meeting. On May 5, the winners of the 2014 António Champalimaud Vision Award will be recognized.
According to the American Cancer Society, in 2015 about 17,000 new cases of esophageal cancer will be diagnosed, and about 15,600 people will die from the disease. While the 5-year survival rate in the 1960s and 1970s was only about 5%, improvements in diagnosis, treatment, and management have led to improved survival. However, information is lacking about what happens to long-term survivors of esophageal cancer. A presentation at the AATS Annual Meeting shows that while five-year survival is up to 39%, these patients still face many health risks and should be monitored for 10 years or more.
From noise in buildings and open park spaces to musical instruments, human voices and the vocalizations of animals on the ground, in the air and underwater, the science of sound is all around. The world's largest scientific meeting devoted to this fascinating, many-faceted field of acoustics will take place next month in Pittsburgh.
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