Ком'пютерні науки та інженерія
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Item Mathematical model of steady-state visual evoked potential in problems of ophthalmological information technologies(Видавництво Львівської політехніки, 2013) Stadnyk, MariaThe mathematical model of steady-state visual evoked potential as a linear periodical random process is justified. The exciting models of the VEP signal are described. The estimation of mathematical expectation and variance are found by - series method.Item Multi-stage problem of concentration plant location(Видавництво Львівської політехніки, 2013) Us, S. A.; Stanina, O. DThe problem of placing mines and processing plants in a given area is discussed. Mathematical model of combined formulation is offered. Aggregate cost of product delivery is chosen as a criterion for optimal location problem.Item Modeling of fluid filtering N-layer filters with multicomponent pollution(Видавництво Львівської політехніки, 2013) Safonyk, Andriy; Danylyshyna, NadiyaDimensional mathematical model is formed that takes into account the reverse influence the determinants of the characteristics of the environment in the modeling of multi-cleaning fluid contamination n-layer sorption filters. The algorithm for solving the corresponding model problem described by a system of nonlinear singularly perturbed differential equations "convection-diffusion-mass transfer" is proposed. The results of calculations of the distribution of the impurity concentration and the mass amount of impurities in height porous filter loading for different times and for different number of layers are given.Item New mathematical approach to the treatment of positron annihilhumidity lifetime data for humidity-sensitive ceramics(Видавництво Національного університету «Львівська політехніка», 2009) Klym, Halyna; Ingram, Adam; Shpotyuk, OlehA mathematical model is considered as a problem of Steafan for equation of heat conductivity. The decision of problem is found in spase of gridding functions of the Rote method and by a report to nonlinear intgral equation of Gammershteyn type with a basis of Grina's functions. Basic parameter of control of the temperature distributing are conducted.Item Моделювання однієї оберненої задачі до задачі Стефана(Видавництво Національного університету «Львівська політехніка», 2009) Кобильська, ОленаA mathematical model is considered as a problem of Steafan for eqation of heat conductivity. The decision of problem is found in space of gridding functions of the Rote method and by a report to nonlinear integral equation of Gammershteyn type with a basis of Grina's functions. Basic paramter of control the temperature field defined. The numeral calculations of the temperature distributing are conducted.