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Information × Registration Number 0222U003703, 0117U001191 , R & D reports Title The study of non-stationary processes when exposed to pulsed welding current on structural materials and biological tissues with the aim of increasing the effectiveness of relevant welding technologies popup.stage_title Head Krivtsun Ihor V., Доктор технічних наук Registration Date 25-05-2022 Organization E.O.Paton Elektric Welding Institute National Academy of scinces of Ukraine popup.description2 Welding of metals by electric arc with refractory cathode in inert gas (TIG welding) with pulse modulation of welding current; biological tissues. Subject of research - non-stationary processes of energy, pulse, mass and charge transfer in the column and anode layer of the arc plasma, as well as in the weld metal in TIG welding with high-frequency pulse (HFP) current modulation; electrical and thermal processes when passing through biological tissues of high-frequency alternating current. To create a scientific basis for TIG welding with HFP modulation current by studying the patterns of non-stationary processes of energy, mass and electricity transfer in the system "arc plasma - welded metal" to determine opportunities to improve the efficiency of this method of welding structural materials; determination of impedance characteristics of biological tissues and parameters of their substitution schemes for calculation of impedance dispersion and characteristics of thermophysical processes in tissues during their coagulation and connection. Development of analytical and numerical methods and calculation methods for computer modeling of non-stationary thermal and electrical processes in tissues and development on this basis of recommendations and technical requirements for new equipment for welding biological tissues. Methods of regulating the intensity of tissue heating, both electrical and mechanical, are proposed. Developed methods and techniques that develop the work of the E.O. Paton Electric Welding Institute in the field of coagulation and welding of living tissues are used in E.O. Paton Electric Welding Institute and create a scientific basis for the development of more efficient welding, diagnostic and control and measuring equipment to determine the properties of biological tissues and the dynamics of their change during heating. Product Description popup.authors Abdullah Valery M. Demchenko Volodymyr F Kovalenko Dmytro V Pentegov Igor V Sidorets Volodymyr M. Khudetskyi Ihor Yu. popup.nrat_date 2022-05-25 Close