The mathematical model of the process of adsorption purification of water from impurities in multilayer microporous filters is formulated. An algorithm for numerically-asymptotic approximation of solution of the corresponding nonlinear singularly perturbed boundary value problem is developed. The developed model allows to investigate the distribution of concentration of pollutant inside the filer.
{"title":"Simulation of the process of water purification in multilayered micro porous media","authors":"O. Prysiazhniuk, Andrii Safonyk, A. Terebus","doi":"10.31713/mcit.2019.61","DOIUrl":"https://doi.org/10.31713/mcit.2019.61","url":null,"abstract":"The mathematical model of the process of adsorption purification of water from impurities in multilayer microporous filters is formulated. An algorithm for numerically-asymptotic approximation of solution of the corresponding nonlinear singularly perturbed boundary value problem is developed. The developed model allows to investigate the distribution of concentration of pollutant inside the filer.","PeriodicalId":275585,"journal":{"name":"Modeling, Control and Information Technologies","volume":"263 ","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-11-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"120939396","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
We study a model of discrete conflict dynamical system with attractive and repulsive interaction, which describes the redistribution of common space of existence between three alternative populations. The evolution of the redistribution of common space of existence is illustrated by examples. It is assume that two populations struggle to survive on a shared space of existence (repulsive interaction), and third coexist with first two ones in the same space (attractive interaction).
{"title":"Dynamical picture of biological populations with attractive and repulsive interaction","authors":"O. Satur","doi":"10.31713/mcit.2019.29","DOIUrl":"https://doi.org/10.31713/mcit.2019.29","url":null,"abstract":"We study a model of discrete conflict dynamical system with attractive and repulsive interaction, which describes the redistribution of common space of existence between three alternative populations. The evolution of the redistribution of common space of existence is illustrated by examples. It is assume that two populations struggle to survive on a shared space of existence (repulsive interaction), and third coexist with first two ones in the same space (attractive interaction).","PeriodicalId":275585,"journal":{"name":"Modeling, Control and Information Technologies","volume":"19 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-11-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132854133","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
The analysis of models of diffusion of innovations in the software market is carried out. The optimization of the model of diffusion of innovations is realized, the optimal values of the corresponding parameters are found. The influence of significant factors on the dynamics of software distribution on the market is analyzed. The peculiarities of the interaction of manufacturers and users of software in the conditions of existence of the market of illegal (pirate) copies are considered.
{"title":"FEATURES OF MODELING THE MARKET OF SOFTWARE","authors":"I. M. Karpovych, O. Hladka, Maxim Ustymchik","doi":"10.31713/mcit.2019.02","DOIUrl":"https://doi.org/10.31713/mcit.2019.02","url":null,"abstract":"The analysis of models of diffusion of innovations in the software market is carried out. The optimization of the model of diffusion of innovations is realized, the optimal values of the corresponding parameters are found. The influence of significant factors on the dynamics of software distribution on the market is analyzed. The peculiarities of the interaction of manufacturers and users of software in the conditions of existence of the market of illegal (pirate) copies are considered.","PeriodicalId":275585,"journal":{"name":"Modeling, Control and Information Technologies","volume":"45 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-11-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124789612","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Mathematical model of the cable line as a part of the combined mine power network was developed, taking into account the current leakage through the human body. Simulation has shown that the cable branch of the frequency converter is characterized by an unacceptably high probability of fatal electric shock.
{"title":"Mathematical Modeling of Current Leakage in the Combined Power Network of a Mine","authors":"S. Vasylets, K. Vasylets","doi":"10.31713/mcit.2019.06","DOIUrl":"https://doi.org/10.31713/mcit.2019.06","url":null,"abstract":"Mathematical model of the cable line as a part of the combined mine power network was developed, taking into account the current leakage through the human body. Simulation has shown that the cable branch of the frequency converter is characterized by an unacceptably high probability of fatal electric shock.","PeriodicalId":275585,"journal":{"name":"Modeling, Control and Information Technologies","volume":"53 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-11-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116925220","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
On the base of exergy-based approach it is shownthat for the ventilation systems there are operating modes forwhich heat recovery increases exergy of fuel expended to providethe ventilation air compared to cases without bringing anyrecovery of heat and additional power consumption to drive theair flow by the fans. For the specified system, in case of switchingventilation unit to the operation mode of lower values of spentfuel exergy it is possible to provide annual saving from 5 to 15 %of the primary energy sources.
{"title":"Exergy-based Control of a Dwelling Ventilation System with Heat Recovery","authors":"V. Voloshchuk, M. Polishchuk","doi":"10.31713/mcit.2019.39","DOIUrl":"https://doi.org/10.31713/mcit.2019.39","url":null,"abstract":"On the base of exergy-based approach it is shownthat for the ventilation systems there are operating modes forwhich heat recovery increases exergy of fuel expended to providethe ventilation air compared to cases without bringing anyrecovery of heat and additional power consumption to drive theair flow by the fans. For the specified system, in case of switchingventilation unit to the operation mode of lower values of spentfuel exergy it is possible to provide annual saving from 5 to 15 %of the primary energy sources.","PeriodicalId":275585,"journal":{"name":"Modeling, Control and Information Technologies","volume":"7 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-11-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127777753","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
The main results of the research of methods of voice transmission in the fourth generation networks, the analysis of existing problems in voice transmission technologies, and also verification of quality and reliability of VoLTE technology in the laboratory environment are presented. Recommendations on the application of voice technology in LTE networks deployed in Ukraine, assessment of existing technologies used for transmitting voice over the fourth generation networks, and the creation of a test strategy for checking the reliability of voice transmission on the LTE network are presented
{"title":"Features of voice transmission in the LTE network","authors":"Yevhenii Malanchuk, Andriy Khrystyuk, Volodymyr Zahorovskyi","doi":"10.31713/vt3201814","DOIUrl":"https://doi.org/10.31713/vt3201814","url":null,"abstract":"The main results of the research of methods of voice transmission in the fourth generation networks, the analysis of existing problems in voice transmission technologies, and also verification of quality and reliability of VoLTE technology in the laboratory environment are presented. Recommendations on the application of voice technology in LTE networks deployed in Ukraine, assessment of existing technologies used for transmitting voice over the fourth generation networks, and the creation of a test strategy for checking the reliability of voice transmission on the LTE network are presented","PeriodicalId":275585,"journal":{"name":"Modeling, Control and Information Technologies","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-10-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128971025","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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