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Information × Registration Number 0225U001508, (0124U002142) , R & D reports Title Physico-mathematical modeling of multicomponent processes and systems popup.stage_title Аналіз складових математичних моделей багатокомпонентних систем Head Beketov Oleksandr V., д.т.н. Registration Date 02-02-2025 Organization Ukrainian State University of Science and Technologies popup.description1 Creation and research of new mathematical models of multicomponent systems popup.description2 Section 1.1 discusses the physical modeling of internal combustion engines (ICEs), which is a key aspect of improving their efficiency, environmental performance, and reliability. The main approaches to developing physical models are analyzed, considering thermodynamic, kinematic, and dynamic processes occurring in ICEs. Section 1.2 presents a combined experimental and theoretical study of tungsten ditelluride (WTe₂), which was synthesized using two primary methods: chemical vapor transport (CVT) for bulk WTe₂ and chemical vapor deposition (CVD) for thin WTe₂ films. Section 1.3 investigates the time dependence of current in liquid dielectrics under the influence of an electric field. The conduction mechanisms, including ionic conductivity, polarization, and relaxation processes, that occur in liquid dielectric media are examined. Section 1.4 focuses on the modeling of a front-end loader based on MTZ and UMZ tractors. An approach is proposed for developing a mathematical and physical model of the loader's operation, considering the structural features of the base tractor. Section 1.5 studies the dielectric properties of Pb₂MoO₅ crystals, measuring the dependence of dielectric permittivity and electrical conductivity on temperature at a frequency of 1 kHz. Section 1.6 is dedicated to the analysis of the impact of educational gaps on the formation of students' mathematical competence. Section 1.7 focuses on the development of a Markovian discrete-continuous stochastic model for the operation of a local geodetic network (GN). This model ensures geodetic support for construction projects and enables numerical calculations of GN reliability and safety, depending on the specifics of its restoration. Keywords: mathematical physics, polyelectrolytes, anisotropic crystal, front loader, mathematical model, dielectric permittivity. Product Description popup.authors Amirulloieva Natalia V. Beketov Oleksandr V. Volnianska Iryna P. Dikarev Borys M. Karasov Hennadii H. Osypchuk Mykola M. Osypchuk Yuliia M. Romanenko Tetiana Ye. Chumak Larysa O. popup.nrat_date 2025-02-02 Close