Search academic texts

Information × Registration Number 0207U002908, 0102U002347 , R & D reports Title The studiy and modelling formation and transport mechanisms of anomalous microfractions of volative compaunds-products of cellular metabolism in respiratory blast popup.stage_title Head Misyura Anatoly Grigorovych, Registration Date 21-02-2007 Organization Institute of the Applied Problems of Physics and Biophysics of the National Academy of Scienes popup.description2 Exhaled air contains a significant line of flying and nonvolatile connections, the structure and which concentration are not constant, and have individual expressiveness and dependence on many factors, including on conditions of formation of a gradient transpulmonary pressure, a ratio convective and diffusive mass transfer gases in each generation of pulmonary structures, from speed of a stream, length and diameter of a bronchial course, density of environment, factor of friction, intensity hydrological formation, frequencies and volume of breath, phase and time structure of a respiratory cycle, volumetric speed of a gas stream in pulmonary structures, and also structure of inhaled air and its temperature and humidity and other factors. The flying substances certain in exhaled air by a method of chromatography-mass spectrometry, concern to different classes of chemical compounds - limiting, nonlimiting, naphthene, aromatic hydrocarbons, oxygen-containing connections (including aldehydes, ketones, spirits, ethers, the friend to connection, ant and acetic acids, p- cresol, nitrogen-containing), grey-containing, chlorine-containing connections. Microconcentration of connections which presence can be treated as an objective reality or lacks of a method of definition with use of a computer database are found out also. Characteristic microconcentration portrait of exhaled air the acetone, flying carbohydrates create carbon oxide, flying fractions short-chain fat acids and other connections which act in exhaled air from evaporation and aerosol formation from a mucous membrane of respiratory ways, including at their pathology and as products of a metabolism of cells which cover structures on a way of transport air, and also products of more complex biotransformation of flying and nonvolatile connections by then as they get in damp exhaled air. The mathematical model of dynamics of process mass transfer gases and flying organic connections by respiratory streams during respiratory cycles is developed. Product Description popup.authors popup.nrat_date 2020-04-02 Close