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International computer Sciences and Information Technologies (CSIT)

作者： Yaroslav Sokolovskyy Oleksiy Sinkevych Roman Voliansky Oleksandr Storozhuk Department of Computer-Aided Design Systems Lviv Polytechnic National University Lviv Ukraine Department of Computer Science Ukrainian National Forestry University Lviv Ukraine Department of Electromechanical Systems Automation and Electric Drives National Technical University of Ukraine “Igor Sikorsky Kyiv Polytechnic Institute” Kyiv Ukraine Department of Information Systems and Computer Modeling Ukrainian National Forestry University Lviv Ukraine

ISBN: (数字)9798331542634

ISBN: (纸本)9798331542641

In this work, software is developed for modeling the drying process of hygroscopic materials using cellular automata. The modeling process using cellular automata is described, and the developed transition rules that consider heat and mass transfer not only within the material but also between stacks are provided. The developed software uses a modern multi-tier client-server architecture, including a database for handling large volumes of computational data. Additionally, the results of the modeling, including their validation based on existing experimental data, are presented and analyzed.

关键词： computer science Accuracy Databases Computational modeling Automata computer architecture Software Data models Information technology Heat transfer

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Recognition of Cyclostationary Signal Features Using Nonlinear Oscillators

Recognition of Cyclostationary Signal Features Using Nonline...

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2022 Conference of Russian Young Researchers in Electrical and Electronic Engineering, ElConRus 2022

作者： Druzhina, Olga S. Baranov, Georgii D. Tutueva, Aleksandra V. Kolev, Georgii Y. Fedoseev, Petr S. Saint Petersburg Electrotechnical University Department of Computer Aided Design Leti Saint Petersburg Russia Saint Petersburg Electrotechnical University Department of Robotics and Industrial Systems Automation Leti Saint Petersburg Russia Saint Petersburg Electrotechnical University Research Institute Leti Saint Petersburg Russia

ISBN: (纸本)9781665409933

The important engineering problem is monitoring the working state of complex systems such as electric machines. One of tasks is to detect the inductive motor bearing faults by tracking windings currents change. The aim of this study is to analyze the response of nonlinear systems to cyclostationary signals recorded from the three-phase motor. The Duffing oscillator system is studied. The numerical simulation of nonlinear systems with the recorded signals as input is performed. The technique for the analysis of the observed dynamics is proposed. We show that such an approach allows detecting the bearing faults with a high level of confidence. © 2022 IEEE.

关键词： Nonlinear systems

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Application of binary classification of magnetic resonance therapy images to detect the threat of the disease due to COVID-19 3

Application of binary classification of magnetic resonance t...

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3rd IEEE KhPI Week on Advanced Technology, KhPI Week 2022

作者： Zalevska, Olga Vanin, Volodymyr Sydogenko, Julia Finogenov, Oleksii Demydenko, Olga Yablonskyi, Petro Ladogubets, Tetyana Oliinyk, Yurii Miroshnichenko, Ivan National Technical University of Ukraine 'Igor Sikorsky Kyiv Polytechnic Institute' Department of Automation of Power Processes and Systems Engineering Kyiv Ukraine National Technical University of Ukraine 'Igor Sikorsky Kyiv Polytechnic Institute' Department of Descriptive Geometry Engineering and Computer Graphics Kyiv Ukraine National Technical University of Ukraine 'Igor Sikorsky Kyiv Polytechnic Institute' Department of Computer-Aided Science and Data Processing Systems Kyiv Ukraine National Technical University of Ukraine 'Igor Sikorsky Kyiv Polytechnic Institute' The Department of Theory Practice and Translation of English Kyiv Ukraine National Technical University of Ukraine 'Igor Sikorsky Kyiv Polytechnic Institute' Deprtament of Applied Mathematics Kyiv Ukraine

ISBN: (数字)9798350399202

ISBN: (纸本)9798350399202

The paper considers the use of a neural network for the binary classification of magnetic resonance imaging images to establish a possible disease of COVID-19. Processing of input data and their reduction to one format is provided, and neural network software for binary classification is developed and its training based on about 60,000 open patient images. The using of developed software is universal for medical doctors or ordinary Internet users and does not require additional training. © 2022 IEEE.

关键词： Magnetic resonance imaging

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Research of synthetic corundum in plunger pairs of power hydraulics 19

Research of synthetic corundum in plunger pairs of power hyd...

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19th International Conference on Aviation and Cosmonautics, AviaSpace 2020

作者： Puzanov, A.V. Kosorukova, O.V. Kotov, V.V. Department of Instrumentation Kovrov State Technological Academy Named after v A Degtyarev 19 Mayakovsky Street Kovrov601910 Russia Research Sector Special Design Bureau Instrument Making and Automation 55 Krupskoy Street Kovrov601919 Russia Department of Hydraulic Drive and Hydro-Pneumatic Automatics Kovrov State Technological Academy Named after v A Degtyarev 19 Mayakovsky Street Kovrov601910 Russia Department of Applied Mathematics and Computer-Aided Design Systems Kovrov State Technological Academy Named after v A Degtyarev 19 Mayakovsky Street Kovrov601910 Russia

The development of hydraulic technologies requires the use of new structural materials. The study used the main provisions of the theory of positive displacement hydraulic machines and hydraulic drives and methods for their solution using multiphysics software. The article presents the results of a comparative analysis of the performance of plunger pairs made of synthetic corundum in hydraulic machines of power drives. The effect of using synthetic corundum in hydraulic power drives is determined. Analysis of the obtained results makes it possible to conclude that when using synthetic sapphire as a plunger material, taking into account the preservation of structural geometry, maximum stresses are reduced by 4.7%, contact stresses by 4.7%, and deformation by 44%, with a decrease in weight by 49%. © Published under licence by IOP Publishing Ltd.

关键词： Sapphire

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Software Architecture of the Automated Animal Behavior Analysis System 3

Software Architecture of the Automated Animal Behavior Analy...

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3rd International Conference on Control in Technical systems, CTS 2019

作者： Sinitca, A.M. Kaplun, D.I. Kovrigin, V.K. Zamansky, A. Saint Petersburg Electrotechnical University 'Leti' Department of Automation and Control Processes Saint Petersburg Russia Saint Petersburg Electrotechnical University 'Leti' Department of Computer Aided Design Saint Petersburg Russia University of Haifa Information Systems Department Haifa Israel

ISBN: (纸本)9781728125107

One of the most important tools for animal behavior and animal welfare scientists is video-based analysis. Despite the fact that automatic analysis system exists for many species, field of automated video-based behavior analysis doesn't have an effective tool for higher animals, as dogs and therefore scientists have to use manual analysis. This work is aimed at solving this issue by developing automated software. Sleep analysis task used as basic task for development and testing. This paper describes architecture of system for automated analysis of animal behavior. © 2019 IEEE.

关键词： Machine learning

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On the peculiarities of the exchange of data between applications in high-level languages and matlab functions 1

On the peculiarities of the exchange of data between applica...

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1st Workshop computer Science and Engineering in the framework of the 5th International Scientific-Methodical Conference "Problems of Mathematical and Natural-Scientific Training in Engineering Education, CSITinMNSTinEE 2018

作者： Krasnovidov, Alexander V. Khomonenko, Anatoly D. Zabrodin, Andrew V. Smirnov, Alexander V. Department of Information and Computer Systems Emperor Alexander I St. Petersburg State Transport University St. Petersburg Russia Laboratory of Computer Aided Integrated Systems St.Petersburg Institute for Informatics and Automation of the RAS Saint Petersburg Russia

The possibilities of data exchange between functions in the language of the Matlab system with applications in high-level languages are considered. Programs in high-level languages appropriately to use in conjunction with mathematical packages to collect data, control various technological processes, and perform other similar actions. The instrumental means of organizing such an exchange are characterized. It had been shown the feasibility of integrating applications in high-level languages and the M-function of the Matlab system, if necessary, to organize input / output of large amounts of data. Copyright © by the papers’ authors.

关键词： Electronic data interchange

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Mathematical Modeling of Boundary Stress State of Orthotropic Material

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IOP Conference Series: Materials Science and Engineering 2021年第1期1016卷

作者： Sofia Holovata Yaroslav Sokolovskyy Bohdan Pobereyko Andriy Holovatyy Department of Information Technologies Ukrainian National Forestry University (UNFU) 103 Gen. Chuprynka St. 79057 Lviv Ukraine Department of Automation and Computer-Integrated Technologies Ukrainian National Forestry University (UNFU) 11 Zaliznyaka St. 79044 Lviv Ukraine Department of Computer-Aided Design Systems Lviv Polytechnic National University 5 Mytropolyta Andreya St. building 4 79013 Lviv Ukraine

In the paper, the mathematical model for determination of stress and deformation fields inside and at the elastic region boundary of deformation of orthotropic materials under the biaxial loadings is developed. Within the proposed model, a mathematical model for determination of the material transition boundary from elastic into non-elastic deformation region is developed and a system of nonlinear equations for calculation of the values of its parameters is obtained. By using the continuous method of solution continuation with respect to the best parameter and Runge-Kutta method, the demarcation curves of absolutely elastic and non-elastic deformation regions for the pine tree are constructed. The analysis of the obtained curves is carried out and on its base it is shown that the proposed model, in contrast to the known mechanical theories of strength, makes possible to determine and substantiate the ultimate stress states of materials whose asymmetry coefficients of the boundaries of proportionality in some anisotropy directions are greater, and in others less than one.

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Extension of electronic testing systems on the example of testing SQL-queries 1

Extension of electronic testing systems on the example of te...

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作者： Karpova, Tatyana S. Malysheva, Svetlana Yu. Teslya, Nikolay N. Department of Mathematics and modeling Emperor Alexander I St. Petersburg State Transport University St. Petersburg Russia Laboratory of computer aided integrated systems St.Petersburg Institute for Informatics and Automation of the RAS Saint Petersburg Russia

The presence of a system of distance learning (education), abbreviated as SDO, is currently a mandatory component of the educational environment of any University of the Russian Federation, accredited for the right to... 详细信息

关键词： Distance education

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Earliest arrival dynamic flow model for emergency evacuation in fuzzy conditions

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IOP Conference Series: Materials Science and Engineering 2020年第1期734卷

作者： E Gerasimenko I Rozenberg Department of Computer Aided-Design Systems Institute of Computer Technologies and Information Security Southern Federal University Nekrasovskiy 44 Taganrog 347900 Russia Research and Design Institute of Informatization Automation and Communication in the Railway Transport Nizhegorodskaya St. 27 Moscow 109029 Russia

Tasks of emergency evacuation planning on dynamic networks in fuzzy conditions are becoming ubiquitous because of the imprecise time-dependent nature and arguments of network. Underlying basis for evacuation tasks are different types of flow algorithms. The paper aims to present the urgent problem of artificial intelligence, namely, the development of a method for finding the optimal evacuation plan in a transportation network in fuzzy conditions as the universal flow problem. The proposed method consists in transporting the maximum number of aggrieved in each time interval based on finding the maximum flow of the earliest arrival in a fuzzy dynamic transportation network. The process of flow conveying is implemented on the network with time-dependent parameters. The main contribution of this paper is to propose a method operating arc capacities and traversal times that can vary depending on the flow departure time and are represented in a fuzzy form. Technique of blurring fuzzy numbers is represented to facilitate calculations. A case-study in the area of Bolshoi Theatre Moscow, Russia and surroundings is conducted to illustrate proposed algorithm. Experiments on the designed network were conducted to check resistance of the network to topology changes.

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Research of synthetic corundum in plunger pairs of power hydraulics

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Journal of Physics: Conference Series 2021年第1期1925卷

作者： A V Puzanov O V Kosorukova V V Kotov Department of Instrumentation Kovrov State Technological Academy named after V A Degtyarev 19 Mayakovsky Street 601910 Kovrov Russian Federation Research sector Special Design Bureau Instrument Making and Automation 55 Krupskoy Street 601919 Kovrov Russian Federation Department of Hydraulic Drive and Hydro-Pneumatic Automatics Kovrov State Technological Academy named after V A Degtyarev 19 Mayakovsky Street 601910 Kovrov Russian Federation Department of Applied Mathematics and Computer-Aided Design Systems Kovrov State Technological Academy named after V A Degtyarev 19 Mayakovsky Street 601910 Kovrov Russian Federation

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