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Information × Registration Number 0216U001292, 0112U005887 , R & D reports Title Electrodynamic simulation of impulse ultrawideband field influence on cell systems and on a general viability of biological objects popup.stage_title Head Dumin Oleksandr, Registration Date 04-02-2016 Organization Kharkov National University named after V.N. Karazin popup.description2 Object of investigation: impulse ultrawideband electromagnetic field with that irradiates an biological object, human buccal cells that cover oral cavity. The aim of the work: studying the rules of impulse ultrawideband electromagnetic radiation influence on cell systems and functional state of biological objects. The method of investigations: methods of classic electrodynamics, finite difference method in time domain, methods of signal processing in artificial neural networks, author's method of determination of living cell nucleus stress state level by the number of heterochromatine granules, the level of cell membrane ductance for vital dyes, and coloration the cells by fluorescent dyes. The problems of propagation of transient electromagnetic field in layered medium with the same parameters as in real biological tissues, is calculated by finite difference method in time domain. The amplitudes of the field inside medium and outside one are received. The analysis of reflected transient field by artificial neural network with the aim to determine the thickness of dielectric layer is carried out. The properties of usual and convolution neural networks are compared. The calculation and optimization of characteristics of experimental setup for irradiation of biological solutions is carried out by means of finite difference method in time domain. The influence of impulse electromagnetic fields on living cells for different doses, expositions, time and spectral parameters of irradiating field is investigated experimentally. It is shown that the increase of harmonical constituents in irradiating impulse field makes worse the stress state of a living cell. The short pauses in irradiation can improve functional state of a cell. The results of investigations are the basis for working out the medical, biological, and radiolocation devices, methods of determination of biological effect of impulse ultrawideband radiation. Product Description popup.authors Бердник С. Блинова Н. Ляховський А. Пасюга В. Чернов А. Широкоряд Д. Шкорбатов Ю. popup.nrat_date 2020-04-02 Close