Navigation Links
Sound research at acoustical society meeting
Date:10/18/2011

[Analysts] get these recordings" often from cell phones or other devices with limited recording capabilities "and they have to try to figure out what's going on. If you don't understand [the impact of] all these variations, you can make the wrong conclusions," Beck said. In a controlled laboratory environment, the researchers placed microphones at a range of angles and distances from each blast, to catch the sound pattern of a single round from multiple points of view. Talk 4aSCa3, "An introduction to forensic gunshot acoustics," is in the morning session on Thursday, Nov. 3.

Abstract: http://asa.aip.org/web2/asa/abstracts/search.oct11/asa760.html

Highlights: Friday, November 4

Vuvuzelas: Earplugs recommended: Vuvuzelas blasted into the publics' ears and awareness during the 2010 FIFA World Cup in South Africa. One immediate question asked was: Do vuvuzelas, those cheap horns commonly made of plastic and blown by enthusiastic fans during sporting events, pose serious risks to hearing? What the Southern Polytechnic State University (SPSU) and Georgia Institute of Technology (Georgia Tech) researchers found is that the sound levels from single horns ranged from 90 to 105 decibels at the players' ears. They also discovered that the horns' impact is greatest when blown simultaneously with many others, such as at the World Cup, where the levels within an audience may well approach 120 decibels. "For perspective, 100 decibels is the level of noise you'd hear at a rock concert. An ambulance siren or pneumatic jack hammer produce about the same level of noise as the vuvuzelas in a stadium, 120 decibels, which is at the threshold of feeling and produces a tickling sensation in your ears," explains Richard Ruhala, associate professor and program director of mechanical engineering at SPSU. "The threshold of pain is 140 decibels. Sustained exposure to 120 decibels is 1000
'/>"/>

Contact: Charles E. Blue
cblue@aip.org
301-209-3091
American Institute of Physics
Source:Eurekalert

0

GOOD

Page: 1 2 3 4 5 6 7 8 9 10 11

Related biology news :

1. Alternative to burning: environmentally sound disposal for wood chips
2. Effects of anthropogenic sound on marine mammals -- a research strategy
3. Floridas worm grunters collect bait worms by inadvertently imitating mole sounds
4. Ultrasound shown to exert remote control of brain circuits
5. Timetable for Puget Sound restoration suffers setback
6. Musicians have biological advantage in identifying emotion in sound
7. Sea Grant awards $820,000 for research under EPAs Long Island Sound study
8. Study compares sound from exploding volcanoes with jet engines
9. Ultrasound imaging now possible with a smartphone
10. Laughing hyenas, wailing levees, the sound of cheese and blaring bagpipes
11. The sound of light: Innovative technology shatters the barriers of modern light microscopy
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:5/22/2013)... The feared Legionella pneumophila bacteria is responsible ... pneumonia. In order to infect us, this pathogen has ... and go unnoticed in our cells, thus avoiding these ... the Basque biosciences research centre, CIC bioGUNE, in which ... the USA and the National Supercomputation Centre in Barcelona ...
(Date:5/22/2013)... of pollinating insects and wild plants have slowed in ... led by the University of Leeds and the Naturalis ... dramatic reductions in the diversity of species in Britain, ... , But the picture brightened markedly after 1990, with ... bees, hoverflies and wild plants. , Professor ...
(Date:5/21/2013)... a whale entangled in fishing gear, scientists showed for ... diving and swimming behavior. The monitoring revealed how fishing ... their energy as they drag gear for months or ... The scientists in this entanglement response suction-cupped a cellphone-size ... Atlantic right whale called Eg 3911. The Dtag, developed ...
Breaking Biology News(10 mins):Mechanism discovered which aids Legionella to camouflage itself in the organism 2Encouraging signs for bee biodiversity 2Encouraging signs for bee biodiversity 3Study reveals how fishing gear can cause slow death of whales 2Study reveals how fishing gear can cause slow death of whales 3
... surviving, growing and reproducing out of control. And signals ... growing or to die. In breast cancer, one tricky ... and sometimes suppressing them. A University of Colorado ... Oncogene details how tumors may flip the TGF-beta ...
... Texas at Austin researchers have demonstrated a new and ... heart and limbs a research advancement that could ... the leading cause of death in the Western world. ... Engineering Assistant Professor Aaron Baker could allow doctors to ...
... This press release is available in German . ... has approved the establishment of four new Research Units. This ... meeting in Bonn. The purpose of the research consortia is ... topical questions in their disciplines and to establish innovative research ...
Cached Biology News:Study details on-off switch that promotes or suppresses breast cancer 2New ability to regrow blood vessels holds promise for treatment of heart disease 2New ability to regrow blood vessels holds promise for treatment of heart disease 3DFG to establish 4 new research units 2DFG to establish 4 new research units 3
(Date:5/23/2013)... Francisco, CA (PRWEB) May 23, 2013 ... who encourage all types of inventions. They focus on ... now noticing this community gravitate toward bringing their ideas ... the DIY Biology Movement, works on making projects using ... the DNA of plants to make them glow with ...
(Date:5/23/2013)... May 23, 2013 VG Energy, an ... with DAK Renewable Research to conduct field trials ... VG Energy is a majority owned subsidiary of ... VG Energy,s exclusively licensed compound LipidMax selectively ... yield in plants, possessing a wide variety of ...
(Date:5/23/2013)... 2013 Virobay, Inc. today announced that their ... an important milestone, as Virobay has now initiated a ... cathepsin S inhibitor.   The first Phase ... study designed to evaluate the safety, tolerability, pharmacokinetics and ... "The initiation of this Phase 1 trial ...
(Date:5/23/2013)... 23, 2013 On April 19th the ... supermarkets to search for the growing antibiotic resistant bacteria ... from a year long study were released late last ... specifically meats, over previous years. For those suffering from ... of antibiotic resistant bacteria in food, may eventually help ...
Breaking Biology Technology:Glowing Plant Releases Maker Kit, Enabling Anyone to Make a Glowing Plant at Home 2VG Energy Enters into a Strategic Alliance with DAK Renewable Research for LipidMax Field Trials 2VG Energy Enters into a Strategic Alliance with DAK Renewable Research for LipidMax Field Trials 3Virobay, Inc. initiates a Phase 1 Trial of VBY-036, a compound intended for the treatment of neuropathic pain 2Virobay, Inc. initiates a Phase 1 Trial of VBY-036, a compound intended for the treatment of neuropathic pain 3Acne Cream, Probiotic Action Shares News on How Some Food may Breed Acne Causing Bacteria 2
...   Reprints Desk, Inc., a Derycz Scientific (OTC.BB:DYSC) company, ... features in Bibliogo, the journal article web app that ... to individual users who sign up at www.bibliogo.com ... save time accessing full-text papers from PubMed and ...
... Feb. 2, 2012 Auxogyn, Inc., a privately-held company focused ... the final tranche of its Series A financing, bringing the ... in May 2010, and investors in the round include Kleiner ... "Over the course of the last year, we ...
... Cambrex Corporation (NYSE: CBM ) announced that ... Monday, February 6, 2012 after the market closes. ... to discuss the fourth quarter 2011 financial results.  , ... February 7, 2012 at 8:30 a.m. Eastern Time  Dial-in:1-866-719-0110 ...
Cached Biology Technology:PubMed Users Now Save Time Accessing and Organizing Scientific Papers by Using Bibliogo From Reprints Desk 2PubMed Users Now Save Time Accessing and Organizing Scientific Papers by Using Bibliogo From Reprints Desk 3Auxogyn Completes $20 Million In Series A Funding 2Auxogyn Completes $20 Million In Series A Funding 3
ANTI CORTIS BIN GLOB...
MOUSE ANTI BOVINE WC1:FITC Immunogen: Bovine lymphocytes...
ANTI S. ENTERID LPS...
... contains the basic components required for the ... and recombinant Feline IL-10 in cell culture ... materials to run ELISAs on approximately fifteen ... are met: The assay is run ...
Biology Products: