Directory: Top/Science/Technology/Acoustics,_Ultrasound_and

Top / Science / Technology / Acoustics,_Ultrasound_and_Vibration / Resources /

Prediction of Earthquakes
Paper by H.L.Dunegan on the use of high frequency sensors to detect acoustic emissions in order to predict earthquakes.
http://www.deci.com/poe.htm
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Modal Analysis and Structural Fatigue
Solutions using computer modelling to determine the vibration modes and impact on a building, equipment or mechanical component when exposed to a vibration source.
http://www.modalanalysis.com
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C37 Acoustics Dieter Ennemoser
Violinmaker and aoustic researcher D.Ennemoser's C37-theory of natural sound, including applications on violins and loudpeakers.
http://www.ennemoser.com
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In-Flight Rotorcraft Acoustics Program (IRAP)
NASA's aeronautics research will reduce noise to make helicopters and tiltrotors more acceptable to the public. The objective of IRAP is to acquire rotorcraft noise data in flight for comparison to wind tunnel data.
http://halfdome.arc.nasa.gov/research/IRAP-intro.html
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Scientific Applications and Research Associated, Inc
SARA specializes in harnessing electromagnetism, plasmas, acoustics and electronics to build practical applications for force protection, renewable energy, UAVs, small robotics and special test challenges.
http://www.sara.com/
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The Sonic Weapon of Vladimir Gavreau
Gerry Vasilitos describes how Dr. Gavreau and his staff periodically experienced an extreme nausea. Further research led them to identify low frequency sound (7 Hz) as the cause. Could this be used as a weapon?
http://www.borderlands.com/archives/arch/gavreaus.htm
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Sound Sucker: Acoustic Illusion
William Beaty describes an acoustic project with weird results.
http://www.amasci.com/freenrg/audhole.html
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PureSpeakers
Discussions of loudspeaker plans and designs. Sealed, isobaric, ported, mtm, speaker, esotar, tweeter, woofer, midrange, speaker building
http://www.purespeakers.com
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Art Ludwig's Sound Page
Contains large amount of information about physical and room acoustics, design of loudspeakers.
http://www.silcom.com/~aludwig/contents.htm
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Sonic Architecture (TM)
Bill and Mary Buchen.
http://www.sonicarchitecture.com
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