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Acoustical Meeting, Nov. 10-14, 2008 in Miami, Florida
Date:11/5/2008

ch phenomenon occurs and the resulting tissue and cellular effects.

Impacting disciplines from drug development and drug delivery to neuroscience, blood-brain barrier behavior, neurology and neurosurgery, this new understanding will have fundamental implications for the long-term functional treatment of neurological and neurodegenerative diseases. Using this enhanced understanding of the blood-brain barrier and the role of microbubbles, it may be possible to develop a noninvasive means of successfully delivering potent pharmacological agents to treat neurological and neurodegenerative diseases that are currently not treatable.

The talk, "Identifying the Inertial Cavitation Threshold in a Vessel Phantom Using Focused Ultrasound and Microbubbles" (2pBB6) by Yao-Sheng Tung, James Choi, Shougang Wang, Jameel Feshitan, Mark Borden and Elisa Konofagou is at 2:45 p.m. on Tuesday, November 11.

7) DETECTING A HUMAN SWIMMER

Protecting military ships, oil tankers and pipelines from terrorists wearing scuba gear requires a sonar system that can distinguish a human swimmer from rocks, buoys, fish, and other marine mammals. The Swimmer Detection Sonar Network (SDSN), developed by Scientific Solutions, Inc., does this with narrow sonar beams that cut out the clutter of a harbor environment.

The SDSN sonar beams are formed by parabolic reflectors, which also record the return echo. As many as 12 reflectors pointing in different directions can be mounted together as a node on a pier or bulkhead. The SDSN strategy is less expensive and more effective than other swimmer detection techniques that use phased arrays, says Peter Stein from Scientific Solutions. It also has the advantage of being modular, in that additional sonar nodes can easily be added to increase area coverage.

Stein and his colleagues have run multiple trials in harbors and found that SDSN has a near 100% probability of identifying human swimmers at
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Contact: Jason Bardi
jbardi@aip.org
301-209-3091
American Institute of Physics
Source:Eurekalert

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