DSpace Собрание: IT–технологии
http://dspace.bstu.ru/jspui/handle/123456789/1853
IT–технологии2019-05-25T13:25:37ZInvestigation of the Algorithm Optimization of Electric Power Regimes According to Voltage and Reactive Power With the use of Penalty Functions Method
http://dspace.bstu.ru/jspui/handle/123456789/2043
Название: Investigation of the Algorithm Optimization of Electric Power Regimes According to Voltage and Reactive Power With the use of Penalty Functions Method
Авторы: Volovikov, A. A.; Yudin, A. A.
Краткий осмотр (реферат): The article is devoted to the investigation of the algorithm for optimizing the steady-state regimes of electric power systems and networks for voltage and reactive power based on the application of the penalty function method. The results of the study are illustrated by the example of a 14-node test design scheme. Based on the analysis of the calculation results, conclusions are drawn about the effectiveness of this algorithm for optimizing the modes of closed-loop networks.
Описание: Volovikov A. A. Investigation of the Algorithm Optimization of Electric Power Regimes According to Voltage and Reactive Power With the use of Penalty Functions Method / A. A. Volovikov, A. A. Yudin // IOP Conf. Series: Journal of Physics. - 2018. - Vol.1066. - 012016.2018-01-01T00:00:00ZQuasi-periodic dynamics in a system with multilevel pulse modulated control
http://dspace.bstu.ru/jspui/handle/123456789/2041
Название: Quasi-periodic dynamics in a system with multilevel pulse modulated control
Авторы: Gol'tsov, Yu. A.; Kizhuk, A. S.; Rubanov, V. G.
Краткий осмотр (реферат): In this paper, the authors describe the transitions from the regular periodic mode to quasiperiodicity that can be observed in a multilevel pulse-width modulated control system for a high-power heating unit. The behavior of such system can be described by a set of two coupled non-autonomous differential equations with discontinuous right-hand sides. The authors reduce the investigation of this system to the studying of a two-dimensional piecewisesmooth map. The authors demonstrate how a closed invariant curve associated with quasiperiodic dynamics can arise from a stable periodic motion through a border-collision bifurcation. The paper also considers a variety of interesting nonlinear phenomena, including phase-locking modes, the coexistence of several stable closed invariant curves, embedded one into the other and with their basins of attraction separated by intervening repelling closed curves.
Описание: Gol'tsov Yu. A. Quasi-periodic dynamics in a system with multilevel pulse modulated control / Yu. A. Gol'tsov, A. S. Kizhuk, V. G. Rubanov // IOP Conf. Series: Materials Science and Engineering. - 2018. - Vol.327. - 052014.2018-01-01T00:00:00ZApplication of mathematical model methods for optimization tasks in construction materials technology
http://dspace.bstu.ru/jspui/handle/123456789/2040
Название: Application of mathematical model methods for optimization tasks in construction materials technology
Авторы: Fomina, E. V.; Kozhukhova, N. I.; Sverguzova, S. V.; Fomin, A. E.
Краткий осмотр (реферат): In this paper, the regression equations method for design of construction material was studied. Regression and polynomial equations representing the correlation between the studied parameters were proposed. The logic design and software interface of the regression equations method focused on parameter optimization to provide the energy saving effect at the stage of autoclave aerated concrete design considering the replacement of traditionally used quartz sand by coal mining by-product such as argillite. The mathematical model represented by a quadric polynomial for the design of experiment was obtained using calculated and experimental data. This allowed the estimation of relationship between the composition and final properties of the aerated concrete. The surface response graphically presented in a nomogram allowed the estimation of concrete properties in response to variation of composition within the x-space. The optimal range of argillite content was obtained leading to a reduction of raw materials demand, development of target plastic strength of aerated concrete as well as a reduction of curing time before autoclave treatment. Generally, this method allows the design of autoclave aerated concrete with required performance without additional resource and time costs.
Описание: Application of mathematical model methods for optimization tasks in construction materials technology / E. V. Fomina [et al.] // IOP Conf. Series: Journal of Physics. - 2018. - Vol.1015. - 052015.2018-01-01T00:00:00ZDetection of network attacks based on adaptive resonance theoty
http://dspace.bstu.ru/jspui/handle/123456789/2039
Название: Detection of network attacks based on adaptive resonance theoty
Авторы: Bukhanov, D. G.; Polyakov, V. M.
Краткий осмотр (реферат): The paper considers an approach to intrusion detection systems using a neural network of adaptive resonant theory. It suggests the structure of an intrusion detection system consisting of two types of program modules. The first module manages connections of user applications by preventing the undesirable ones. The second analyzes the incoming network traffic parameters to check potential network attacks. After attack detection, it notifies the required stations using a secure transmission channel. The paper describes the experiment on the detection and recognition of network attacks using the test selection. It also compares the obtained results with similar experiments carried out by other authors. It gives findings and conclusions on the sufficiency of the proposed approach. The obtained information confirms the sufficiency of applying the neural networks of adaptive resonant theory to analyze network traffic within the intrusion detection system.
Описание: Bukhanov D. G. Detection of network attacks based on adaptive resonance theoty / D. G. Bukhanov, V. M. Polyakov // IOP Conf. Series: Journal of Physics. - 2018. - Vol.1015. - 042007.2018-01-01T00:00:00Z