نتایج جستجو برای: amplitude dependence speed of sound

تعداد نتایج: 21193216  

E Ehsani S. A Hosseini,

The movement parameters of yellow fin tuna schools were analyzed by means of scanning sonar in tuna purse seine capture situations in the Oman Sea in June 2010. There was significant difference in swimming speed and radial swimming direction between the escaped and captured schools. In escaped cases, the fish schools swam faster with mostly horizontal avoidance behavior to the sound stimuli fro...

Journal: :Physical review letters 2007
H Enquist H Navirian T N Hansen A M Lindenberg P Sondhauss O Synnergren J S Wark J Larsson

We have observed large-amplitude strain waves following a rapid change in density of InSb due to nonthermal melting. The strain has been measured in real time via time-resolved x-ray diffraction, with a temporal resolution better than 2 ps. The change from the solid to liquid density of the surface layer launches a high-amplitude strain wave into the crystalline material below. This induces an ...

2005
Andreas Wilde

The Lattice-Boltzmann method (LBM) for simulation of low Mach number flows is evaluated for the application in flow acoustics. By linearization and von-Neumann analysis quantitative measures for the accuracy of phase speed and attenuation of low amplitude sound waves in presence of a mean flow are derived. It is shown that only phase errors are relevant when simulating sound waves in the audibl...

Journal: :The European Physical Journal C 2010

Journal: :Journal of the Aeronautical Sciences 1951

2009
Junwei Zhao

The solar tachocline at the bottom of the convection zone is an important region for the dynamics of the Sun and the solar dynamo. In this region, the sound speed inferred by global helioseismology exhibits a bump of approximately 0.4% relative to the standard solar model. Global helioseismology does not provide any information on possible latitudinal variations or asymmetries between the North...

Journal: :Planetary and Space Science 1998

Journal: :Journal of High Energy Physics 2008

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