Browsing by Author "Porkuian, O."
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Item Adaptive control of ore pulp thinning in ball mills with the increase of their productivity(2014) Porkuian, O.; Поркуян, О. В.The optimal control problem and its solution algorithm for magnetic separation processes based on clear-fuzzy block predictive model are formulated.Item Mathematical models of rheological transformations during transfer of potential of mass, energy and momentum pulse.(2017) Stentsel, Y.; Porkuian, O.; Litvinov, K.The processes of convection-diffusion transfer of the potential of the determining parameter, which can be mass, energy or momentum pulse, are being considered. It is shown that the existing methods of mathematical modelling generally consider the transfer processes of mass, heat energy and momentum from a source of infinite cardinality to certain unlimited volume under the initial conditions of the first, second or third kind. In addition, it is assumed that the physical transition zone of the potential is infinitesimally small. At the same time, very complex mathematical models are obtained, which are often unfit for practical usage. It is shown that the rheological transition zone can be a technological device, for example, a reactor, an evaporation plant, an absorber, a rectifying column, etc., in which not only transformation of the main determining parameter occurs, but also creation of new ones. That is, the process of transformation under convection-diffusion transfer can be multistage with simultaneous output (drain) of the determining parameters - concentration, heat energy, pressure, etc. For mathematical description of the transfer processes of the potential the known laws of the transfer phenomena are used, which are supplemented by the corresponding laws of drain of the created potential. It is shown that in this case transformation of the input potential is described by nonlinear differential equations, which under certain conditions can be solved analytically.Item Research of the automatic control system of belt conveyor on the technical basis of the industrial controller schneider electric(2012) Porkuian, O.; Kurganov, I.; Поркуян, О.; Курганов, І.The results of the studies of complex system of automatic control of processes of the transportation and the crushing of the ore been presented. The principles of control been based on the measurement of temperature field on the zone of the friction. The efficiency of the approach confirmed by the results of theoretical and experimental research of the control system based on industrial controllers Schneider Electric.Item Rheological model of mixing and transformation processes in multiphase medium(2015) Porkuian, O.; Prokaza, O.; Kutaiba, A. A.; Поркуян, О. В.; Проказа, О.Theory of rheological transitions and transformations was used in multiphase medium for description of mixing and transformation processes. In the article there presented models of irreversible rheological transitions and shown that such transitions are described by integrated impulse Dirac delta function. Rheological model of process with the usage of zero gradient method is obtainedItem Some algorithms of computer algebra(2016) Porkuian, O.; Timoshyn, A.; Timoshyna, L.The article describes one of the methods for computing determinants without using fractions proposed by Bareiss. This problem has a clear algorithmic character in nature and refers to the field of computer algebra. The implementation of this algorithm is proposed in the known Maxima system of symbolic computations. In addition, this method makes it possible to get enough convenient formula for the calculation of the matrix of unitriangular transformation of a quadratic form to a canonical one.Item The determination of the characteristics of iron ore slurry under the conditions of ultrasonic control(2013) Porkuian, O.; Sotnikova, T.; Поркуян, О.; Сотникова, Т.Item The problem of optimal control of processes of ore size reductio(СНУ ім. В. Даля, 2016) Porkuian, O.; Sotnikova, T.; Поркуян, О. В.; Сотнікова, Т. Г.