On the basis of mathematical model of convectivediffusion in a three-layered filter it is formulated a contactinitial-boundary value problem for description of mass transferof pollution accompanying the sorption processes. It is proposedthe algorithm for establishing the estimation of values of soughtfunction (concentration of pollution) at the lower boundary of thefilter on the basis of the interpolation of experimental data. It istaken into account that the right end of the interpolation segmentis unknown. It is determined the exact solutions of contact-initialboundaryvalue problems of mass transfer with provision forboth diffusive and convective mechanisms of transfer as well assorption processes, which is based on integral transformationsover space variables in the contacting regions. Is it designedsoftware and established regularities of convective diffusionprocess in the three-layered filter.
{"title":"Interpolation of Boundary Condition at Time-Interval of Unknown Lenghth for the Problem of Convective Diffusion in a Three-Layered Water Filter","authors":"O. Chernukha, Y. Bilushchak","doi":"10.31713/mcit.2019.07","DOIUrl":"https://doi.org/10.31713/mcit.2019.07","url":null,"abstract":"On the basis of mathematical model of convectivediffusion in a three-layered filter it is formulated a contactinitial-boundary value problem for description of mass transferof pollution accompanying the sorption processes. It is proposedthe algorithm for establishing the estimation of values of soughtfunction (concentration of pollution) at the lower boundary of thefilter on the basis of the interpolation of experimental data. It istaken into account that the right end of the interpolation segmentis unknown. It is determined the exact solutions of contact-initialboundaryvalue problems of mass transfer with provision forboth diffusive and convective mechanisms of transfer as well assorption processes, which is based on integral transformationsover space variables in the contacting regions. Is it designedsoftware and established regularities of convective diffusionprocess in the three-layered filter.","PeriodicalId":275585,"journal":{"name":"Modeling, Control and Information Technologies","volume":"12 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-11-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121776312","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 authors have been constructed the splitting of the basic geometric images vector field (points, straights, hyperplanes and hyperguadrics) in transition from n-dimensional affine space to the space of affine connection. All invectigations have been fulfilled in the moving coordinate system of zero order.
{"title":"Modeling Vector Fields in Space of Affine Connection","authors":"Petro Tadeyev","doi":"10.31713/mcit.2019.58","DOIUrl":"https://doi.org/10.31713/mcit.2019.58","url":null,"abstract":"The authors have been constructed the splitting of the basic geometric images vector field (points, straights, hyperplanes and hyperguadrics) in transition from n-dimensional affine space to the space of affine connection. All invectigations have been fulfilled in the moving coordinate system of zero order.","PeriodicalId":275585,"journal":{"name":"Modeling, Control and Information Technologies","volume":"33 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-11-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124122038","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 dynamical model of heat-mass exchange for a steam humidifier with lumped parameters, which can be used for synthesis of control systems by inflowing-exhaust ventilation installations, or industrial complexes of artificial microclimate, is considered. A mathematical description that represents thedynamical properties of a steam humidifier concerning the main channels of regulation and perturbation is presented. The resulting dynamical model of a humidification chamber can be the basis for the synthesis of automatic control systems and simulation of transients. A significant ad-vantage of the obtainedmathematical model in the state space is the possibility of synthesis and analysis of a multidimensional control system.
{"title":"Mathematical Model of Heat-and-Mass Transfer for Steam Humidifier","authors":"I. Golinko, V. Drevetskiy","doi":"10.31713/mcit.2019.45","DOIUrl":"https://doi.org/10.31713/mcit.2019.45","url":null,"abstract":"The dynamical model of heat-mass exchange for a steam humidifier with lumped parameters, which can be used for synthesis of control systems by inflowing-exhaust ventilation installations, or industrial complexes of artificial microclimate, is considered. A mathematical description that represents thedynamical properties of a steam humidifier concerning the main channels of regulation and perturbation is presented. The resulting dynamical model of a humidification chamber can be the basis for the synthesis of automatic control systems and simulation of transients. A significant ad-vantage of the obtainedmathematical model in the state space is the possibility of synthesis and analysis of a multidimensional control system.","PeriodicalId":275585,"journal":{"name":"Modeling, Control and Information Technologies","volume":"18 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-11-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127886247","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}
Andrii Safonyk, M. Mishchanchuk, Mykyta Kromf, Aydin Novruzov
This article about the system of remote accesscontrol to the premises on the basis of Mesh-network. Theoperating principle of the system and the MESH network aredescribed here. It will also talk about the MESH network andcompare it with other network topologies.
{"title":"Development of Client-Server System of Remote Access Control to the Premises on the Basis of Mesh-Network","authors":"Andrii Safonyk, M. Mishchanchuk, Mykyta Kromf, Aydin Novruzov","doi":"10.31713/mcit.2019.68","DOIUrl":"https://doi.org/10.31713/mcit.2019.68","url":null,"abstract":"This article about the system of remote accesscontrol to the premises on the basis of Mesh-network. Theoperating principle of the system and the MESH network aredescribed here. It will also talk about the MESH network andcompare it with other network topologies.","PeriodicalId":275585,"journal":{"name":"Modeling, Control and Information Technologies","volume":"22 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-11-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128225253","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 criterion assessment of learning outcomes developed to study subject validity of assessment.
为研究学习成果评价的主体效度，建立了学习成果评价标准的数学模型。
{"title":"Mathematical Model of Criterion Assessment","authors":"V. Kovtunets","doi":"10.31713/mcit.2019.54","DOIUrl":"https://doi.org/10.31713/mcit.2019.54","url":null,"abstract":"Mathematical model of criterion assessment of learning outcomes developed to study subject validity of assessment.","PeriodicalId":275585,"journal":{"name":"Modeling, Control and Information Technologies","volume":"7 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-11-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128502399","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 modeling of detachable filtration in the split filter flow mode was carried out using exact and approximate analytical methods. An engineering technique has been developed to determine the duration of filter cycles, based on quality, economic and technical criteria. Determination of rational filter medium height was considered for two materials differed significantly by economic indexes.
{"title":"Mathematical Modeling of Suspension Filtration on a Rapid Filter at an Unregulated Rate","authors":"V. Poliakov","doi":"10.31713/mcit.2019.10","DOIUrl":"https://doi.org/10.31713/mcit.2019.10","url":null,"abstract":"Mathematical modeling of detachable filtration in the split filter flow mode was carried out using exact and approximate analytical methods. An engineering technique has been developed to determine the duration of filter cycles, based on quality, economic and technical criteria. Determination of rational filter medium height was considered for two materials differed significantly by economic indexes.","PeriodicalId":275585,"journal":{"name":"Modeling, Control and Information Technologies","volume":"16 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-11-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124345715","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}
Methods have been developed for numerical analysis the vertical oscillations of rigid plate with a liquidimpermeable sole rested on the layer (Biot’s model) with a rigidly restrained lower edge. The plate sole is liquid-impermeable. The analysis of the impedance functions depending on the oscillation frequency, the geometry of the system and the mechanical parameters of the soil model is carried out.
{"title":"Vertical Impedance of Rigid Shallow Foundation on Layered Water-Saturated Soil","authors":"O. Trofymchuk, O. Savytskyi","doi":"10.31713/mcit.2019.48","DOIUrl":"https://doi.org/10.31713/mcit.2019.48","url":null,"abstract":"Methods have been developed for numerical analysis the vertical oscillations of rigid plate with a liquidimpermeable sole rested on the layer (Biot’s model) with a rigidly restrained lower edge. The plate sole is liquid-impermeable. The analysis of the impedance functions depending on the oscillation frequency, the geometry of the system and the mechanical parameters of the soil model is carried out.","PeriodicalId":275585,"journal":{"name":"Modeling, Control and Information Technologies","volume":"20 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-11-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116628576","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 basis of experimental studies, it was determined the capability to evaluate qualitatively and quantitatively the degree of arrhythmia of the carbon oxidation process, which determines the dynamics of the oxygen-converter metallurgical process.
{"title":"To the Issue of Choosing the Criteria of Dynamics of Complex Physico-Chemikal Processes","authors":"Jakov Danchenkov","doi":"10.31713/mcit.2019.09","DOIUrl":"https://doi.org/10.31713/mcit.2019.09","url":null,"abstract":"On the basis of experimental studies, it was determined the capability to evaluate qualitatively and quantitatively the degree of arrhythmia of the carbon oxidation process, which determines the dynamics of the oxygen-converter metallurgical process.","PeriodicalId":275585,"journal":{"name":"Modeling, Control and Information Technologies","volume":"46 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-11-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121211469","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 work demonstrates the results of application of the detailed advanced exergetic analysis to air-source, watersource and wastewater-source heat pumps providing space heating in the built environment. Cumulative values based on seasonal exergy destruction are used for deriving conclusions. It is shown that in the specified conditions of the investigated systems priorities for improving should be given to heat exchangers.
{"title":"Exergy-based Investigation of Various Heat Pumps for Enhancement of Their Thermodynamic Efficiency","authors":"V. Voloshchuk, P. Gullo","doi":"10.31713/mcit.2019.69","DOIUrl":"https://doi.org/10.31713/mcit.2019.69","url":null,"abstract":"The work demonstrates the results of application of the detailed advanced exergetic analysis to air-source, watersource and wastewater-source heat pumps providing space heating in the built environment. Cumulative values based on seasonal exergy destruction are used for deriving conclusions. It is shown that in the specified conditions of the investigated systems priorities for improving should be given to heat exchangers.","PeriodicalId":275585,"journal":{"name":"Modeling, Control and Information Technologies","volume":"7 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-11-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134570894","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 nonlinear mathematical model of a process micro irrigation in non-saturated of soil layer under of heat and mass transfer has presented. The numerical solution of the espective boundary value problem has obtained by the method of finite differences using the monotonic scheme. Software had created on the basic of developed algorithms and a series of numerical experiments were done.
{"title":"Mathematical Modeling of the Process of Micro Irrigation in the Soil Layer under Conditions of Heat and Mass Transfer","authors":"A. Vlasyuk, Viktor Ogiychuk","doi":"10.31713/mcit.2019.55","DOIUrl":"https://doi.org/10.31713/mcit.2019.55","url":null,"abstract":"The nonlinear mathematical model of a process micro irrigation in non-saturated of soil layer under of heat and mass transfer has presented. The numerical solution of the espective boundary value problem has obtained by the method of finite differences using the monotonic scheme. Software had created on the basic of developed algorithms and a series of numerical experiments were done.","PeriodicalId":275585,"journal":{"name":"Modeling, Control and Information Technologies","volume":"72 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-11-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127358285","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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