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By means of phase-sensitive laser setup the study of detection of thermal microinhomogeneities in fluids is carried out. Presence in liquid medium small-scale unsteady thermal inhomogeneities should be appeared in local variations of an index of refraction. These variations were required to be discovered by laser sounding of a optical cell with a fluid and by registration of frequency-phase fluctuations...
In this paper, some results of clinical and experimental investigations of the biomechanics of pulmonary ventilation are presented. Direct visualization of the motion of non-homogenous gas media in the human respiratory system during inspiration has been obtained for the first time. The existence of the phenomenon of formation of a helical counterflow of gas media at pulmonary ventilation has been...
In this paper, the physical mechanisms of transcapillary exchange of the living organism are investigated. Laboratory animals are the object of this investigation, and original laser and electrophysiological methods are used as experimental tools.
The processes of diffusion and filtration are slow, and therefore a full cycle of gas exchange and metabolism at the level of capillaries of the blood circulation system cannot be realized in such a short time. A special laser setup was created for noncontact, noninvasive investigation of microcirculation and transcapillary exchange in a living object. With the help of investigations by using this...
This article summarizes a study of the Brownian motion, at small temporal and spatial scales, of microparticles suspended in liquids. Using a phase-sensitive laser spectroscopy method, the thermal diffusion motion of test microparticles have been observed leading to a square law of Brownian motion at sufficiently small time scales.
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