منابع مشابه
The Effect of Water Surface and Sea Bottom on Sound Propagation in Persian Gulf
Whether exploratory or commercially, acoustic fishery benefits are important in finding a school of fish and other aquatics, but using this procedure and state accurate detailed information for the whole specifications of organisms require sufficient information of sound speed changes, course of ray propagation and their rate of absorption and attenuation . This research has considered the qua...
متن کاملPropagation of Forced Sound Waves in Rarefied Gasdynamics
* Present address: Applied Mathematics Department, Brookhaven National Laboratory, Upton, New York. • See, for instance, L. Landau and E. Lifshitz, Fluid Mechanics (Addison-Wesley Publishing Co., Inc., Reading, Mass., 1959). scribed by the classical theory of Stokes and Kirchoff. • This theory is, of course, based on the Navier-Stokes equations. However, for high-frequency sound propagation in ...
متن کاملStudy of Ion Sound Propagation Waves in Thermal Plasma
Plasma can support a great variety of wave motion. Both high frequency and low frequency, electromagnetic and electrostatic waves may propagate in plasma. The primary emphasis has been placed on the study of electrostatic waves because the ease with which such waves may be excited and detected and because the collisionless damping of waves predicted by Landau can be conveniently studied. In thi...
متن کاملDYNAMICAL SIMULATION OF UNDERWATER SOUND PROPAGATION IN THE HORMOZ STRAIT
Providing an illustration of sound propagation in the Hormoz Strait ,this paper is about acoustic wave propagation in shallow water for a harmonic point source with low frequency, less than 1000 and solution of a homogenous Helmholtz equation using parabolic equation. C++ programming is used to solve Helmholtz equation [9] and MATLAB software is used to illustrate figures and animate them [6], ...
متن کاملObservation with a Lidar of the Water Content in Fogs
When visibility is low on an airport (visibility less than 2000ft and/or cloud ceiling below 200ft), its capacity (number of flights landing or taking off per hour) is significantly reduced (up to 1⁄2), causing delays, cancellations, missed connections... The cost for the airport and the companies is high, in particular when the perturbed airport is a hub. The formation of fog cannot be prevent...
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ژورنال
عنوان ژورنال: The Journal of the Acoustical Society of America
سال: 1979
ISSN: 0001-4966
DOI: 10.1121/1.2017286