نتایج جستجو برای: wave approach
تعداد نتایج: 1489339 فیلتر نتایج به سال:
Objective- The purpose of this study was to investigate the feasibility of performing echocardiography in apparently healthy pigeons, and measurement of the quantitative cardiac indices using B-mode and Doppler techniques. Design- Experimental study Animals- Ten apparently healthy pigeons Procedures- Echocardi...
We present a wave function approach to study the evolution of a small system when it is coupled to a large reservoir. Fluctuations and dissipation originate in this approach from quantum jumps occurring randomly during the time evolution of the system. This approach can be applied to a wide class of relaxation operators in the Markovian regime, and it is equivalent to the standard Master Equati...
Retrieval of two dimensional ocean wave spectra from synthetic aperture radar data has been performed for several years using a variety of di erent approaches. Due to the complexity of the problem potential users of SAR ocean wave retrieval schemes like weather centers have found it diÆcult to judge about the quality and the bene t of SAR retrieved wave spectra. The present study gives insight ...
seismic tomography is an imaging technique which creates maps of subsurface elastic properties such as p/s wave velocity, density and attenuation, based on observed seismograms and use of sophisticated inversion algorithms. amongst different acquisition geometries, seismic cross-hole tomography has a special position in geophysical surveys with many applications in hydrocarbons, coal and other ...
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