Перегляд за Автор "Miroshnichenko, D. V."
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Документ Ceramic-inorganic polymer composites for protection against electromagnetic radiation mechanical properties designing(IOP Publishing Ltd, 2023) Lebedev, V. V.; Miroshnichenko, D. V.; Kryvobok, R. V.; Cherkashina, A. M.; Riabchenko, M. O.The possibility of designing mechanical properties of ceramic-inorganic polymer composites for protection against electromagnetic radiation is considered. As a result, the mechanical properties of polymer composite based on polyamide, modified with ceramic inorganic graphite-ferromagnetic fillers (silicon carbide, chromium oxide Cr2O3 and graphite) was received and optimized. The strength characteristics complex of ceramic-inorganic polymer composites with silicon carbide SiC, chromium oxide Cr2O3 and graphite content in diapason 5-15 % wt. were studied. It was established that the optimal strength characteristics can be received using binary modification of polyamide with ceramic-inorganic graphite-ferromagnetic fillers: polyamide 6 – SiC 10% wt. – Cr2O3 10% wt. and polyamide 6 – SiC 10% wt. – graphite 10% wt. Using mathematical modeling, it was established that the polyamide 6 – SiC 10% wt system is the most optimal for three-component complex modification with ceramic inorganic graphite-ferromagnetic fillers – Cr2O3 10% wt. – graphite 10% wt. By design experimental-statistical mathematical models in equal regressions, mathematical optimization of mechanical properties of polymeric ceramic-inorganic composites contains for protection against electromagnetic radiation was carried out. Designed polymer ceramic-inorganic composites for protection against electromagnetic radiation according to their strength characteristics can be used for modern radio absorbing materials production.Документ Co-processing of coal and plastic waste a revieew(ТОВ "Планета-Принт", 2020) Xiaobin, Zhang; Miroshnichenko, D. V.; Tulskaya, A. G.; Bogoyavlenskaya, E. V.The effective recycling processes for plastic waste represent a major challenge in the protection of the environment and natural resources, because the consumption of plastic is on increase. Disposing of wastes in a landfill is not a solution, essentially because, apart from it being increasingly difficult to find suitable places for building technically adequate landfills, it is still not well established what the long-term effects of their degradation could be. Incineration of plastic waste to produce heat may be a possibility, but its organic content would be totally destroyed.Документ Co-processing of coal and plastic waste: a review(Національний технічний університет "Харківський політехнічний інститут", 2020) Xiaobin, Zhang; Miroshnichenko, D. V.; Tulskaya, A. G.; Bogoyavlenskaya, E. V.Co-processing of coal and plastic waste: a review / Zh. Xiaobin [et al.] // Інформаційні технології: наука, техніка, технологія, освіта, здоров'я = Information technologies: science, engineering, technology, education, health : наук. вид. : тези доп. 28-ї міжнар. наук.-практ. конф. MicroCAD–2020, [28-30 жовтня 2020 р.] : у 5 ч. Ч. 2 / ред. Є. І. Сокол. – Харків : Планета-Прінт, 2020. – С. 297.Документ Coke segregation in the dry coke quenching unit(Національний технічний університет "Харківський політехнічний інститут", 2023) Kravchenko, S. O.; Miroshnichenko, D. V.Документ Coking of stamped coal batch. Yield of chemical products(Національний технічний університет "Харківський політехнічний інститут", 2022) Mukina, N. V.; Miroshnichenko, D. V.Given that coal may be oxidized and the yield of ammonia and hydrogen sulfide cannot be predicted from the volatile matters, mathematical formulas describing the yield of the basic coking products as a function of the elemental composition of the initial stamped coal batch are derived. It is found that, with increase in the content of gas coal (and hence in the volatile matter) in the stamped batch, the coke yield declines, but there is a higher yield of tar, benzene, carbon dioxide, pyrogenetic moisture, and coke-oven gas.Документ Movement of coke in the dry coke quenching plant during its unloading(Національний технічний університет "Харківський політехнічний інститут", 2022) Fidchunov, A. L.; Miroshnichenko, D. V.; Borisenko, O. L.; Kravchenko, S. O.This article presents experimental data on the nature of coke movement in the DRY COKE QUENCHING PLANT (DCQP) chamber during its unloading. It is shown that when the coke is unloaded, zones of accelerated coke descent and stagnant zones appear.Документ Oxidation of coking coal. Investigation of the oxidation processes of coking coal of varying degrees of metamorphism(LAP LAMBERT Academic Publishing, Germany, 2020) Miroshnichenko, D. V.Документ Prediction of the heats of combustion of plant raw materials based on the elemental analysis data(Національний технічний університет "Харківський політехнічний інститут", 2022) Miroshnichenko, D. V.; Malik, I. K.The relationships of the data of proximate (moisture content, ash content, yield of volatile matter, and nonvolatile carbon content) and elemental (carbon, hydrogen, nitrogen, sulfur, and oxygen contents) analyses of various plant raw materials for the production of biogas, charcoal, and torrefied biomass with their gross calorific values were analyzed. Mathematical relationships were developed for predicting the gross calorific values of plant raw materials with high accuracy based on the carbon and oxygen contents and atomic ratios between carbon and oxygen.Документ Properties of polymers obtained from humic acids(ТОВ "Планета-Прінт", 2021) Zhang, Xiaobin; Lebedev, V. V.; Miroshnichenko, D. V.; Pyshyev, S.; Savchenko, D.One of the most important areas of modern research in the field of polymer materials is the field of obtaining and studying the properties of polymer hydrogels. Hydrophilic polymers with large volumes of water absorption and storage are known as hydrogels, or super absorbents.Документ Surfur, coal and coke: theory and practice(LAP LAMBERT Academic Publishing, Germany, 2020) Pyshyev, Serhiy; Miroshnichenko, D. V.Документ Use of humic acids from low-grade metamorphism coal for the modification of biofilms based on polyvinyl alcohol(2021) Lebedev, V. V.; Miroshnichenko, D. V.; Zhang, Xiaobin; Pyshyev, S.; Savchenko, D.; Nikolaichuk, Yu.Humic acids (HA) were extracted from three different samples of low-grade Ukrainian coal. Polyvinyl alcohol (PVA) solutions modified with HA of different origin were obtained, which are planned to be used to obtain biodegradable bactericidal resistant films. Studies of the influence of humic acids on the processes of structure formation in PVA solutions have been carried out, on the basis of which it has been shown that they are due to different nature and characteristics of humic acids: presence or absence of coal residue particles.Документ The use of humic acids from low-grade metamorphism coal for the modification of biofilms based on polyvinyl alcohol(ТОВ "Гнозіс", 2021) Lebedev, V. V.; Miroshnichenko, D. V.; Zhang, Xiaobin; Pyshyev, S.; Savchenko, D.