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Information × Registration Number 0222U001014, 0118U005413 , R & D reports Title The Estimation of the acoustic features by sound flap, given birth by detachable currents and supersonic flow. popup.stage_title Head Hrinchenko Viktor T, д.ф.-м.н. Registration Date 23-01-2022 Organization The Institute of Hydromechanics of the National Academy of Sciences of Ukraine popup.description2 The object of research is the problem of acoustic radiation of detachable currents in straight channels of circular cross-section with local constrictions; signals generated by mechanical perturbations in human biological tissues; two-dimensional circular cylindrical groove. The aim of the work is to develop reliable and efficient algorithms for separating auscultatory signals into their natural components - breathing sounds, heart tones and stationary background noise. Development of methods for processing random processes based on modern approaches to the analysis of acoustic signals. Investigation of the near and far fields of a cylindrical circular groove in the flow of a viscous fluid. Research methods - analytical-numerical method for solving related problems of acoustic radiation of currents in channels with constrictions, a new method of multi-channel processing of acoustic signals based on regression and confluence analysis of random processes; numerical simulation of the flow of a viscous flow of a circular groove. Methods of Green's functions and normal modes, as well as methods of correlation-spectral analysis are used to find the flow field and acoustic field.   Product Description popup.authors Basovsky Vladimir Grigorovich Borisyuk Andrey Alexandrovich Makarenkova Anastasia Anatolyevna Oliynyk Valeriy Nikifirovych Rudnytska Maria Oleksandrivna Rudnitskii Oleksandr Hennadiiovych Sidko Maria Ivanivna Tkachenko Lyudmila V popup.nrat_date 2022-03-09 Close