In this paper we study a mathematical model of soil moisture transport with variable porosity. The problem is set for the case of highly concentrated solute spilled onto soil surface. We investigate the way solute transfer, adsorption of contaminant by soil particles and variable porosity influence infiltration of solute into the soil profile. For that purpose, two models are used: a classical one and the one with consideration of mentioned factors. By comparing the results of both models, we established that high concentration of solute causes moisture transport to transpire more slowly, and the pollutant to remain on the soil surface for longer time. Numerical results indicate that porosity can vary considerably under the conditions of intensive contamination with salts.
{"title":"Spreading of chemical substance after its accidental spillage onto the soil surface under unsaturated conditions and variable porosity","authors":"O. Kozhushko, P. Martyniuk","doi":"10.31713/mcit.2019.27","DOIUrl":"https://doi.org/10.31713/mcit.2019.27","url":null,"abstract":"In this paper we study a mathematical model of soil moisture transport with variable porosity. The problem is set for the case of highly concentrated solute spilled onto soil surface. We investigate the way solute transfer, adsorption of contaminant by soil particles and variable porosity influence infiltration of solute into the soil profile. For that purpose, two models are used: a classical one and the one with consideration of mentioned factors. By comparing the results of both models, we established that high concentration of solute causes moisture transport to transpire more slowly, and the pollutant to remain on the soil surface for longer time. Numerical results indicate that porosity can vary considerably under the conditions of intensive contamination with salts.","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":"123929181","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}
In this communication we present conditions ofsolvability of Sylvester matrix equation AX – XB = C over integerdomains. The necessary and sufficient conditions of solvability ofSylvester equation in term of columns equivalence of matricesconstructed in a certain way by using the coefficients of thisequation are proposed
{"title":"On Solvability of the Matrix Equation AX – XB = C over Integer Rings","authors":"V. Prokip","doi":"10.31713/mcit.2019.04","DOIUrl":"https://doi.org/10.31713/mcit.2019.04","url":null,"abstract":"In this communication we present conditions ofsolvability of Sylvester matrix equation AX – XB = C over integerdomains. The necessary and sufficient conditions of solvability ofSylvester equation in term of columns equivalence of matricesconstructed in a certain way by using the coefficients of thisequation are proposed","PeriodicalId":275585,"journal":{"name":"Modeling, Control and Information Technologies","volume":"04 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":"130452759","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}
A mathematical model of the electrocoagulation process has been constructed, taking into account the geometric dimensions of the reactor, the volumetric flow rate of the liquid and the applied current. A simulation model has been developed that describes the processes occurring in a coagulator, on the basis of which was studied the influence of current, changes in the concentration of inlet contamination on the concentration of the target component at the outlet of the reactor.
{"title":"Research of simulation model of electrocoagulation process","authors":"Andrii Safonyk, A. Burduk, I. Targoniy","doi":"10.31713/mcit.2019.67","DOIUrl":"https://doi.org/10.31713/mcit.2019.67","url":null,"abstract":"A mathematical model of the electrocoagulation process has been constructed, taking into account the geometric dimensions of the reactor, the volumetric flow rate of the liquid and the applied current. A simulation model has been developed that describes the processes occurring in a coagulator, on the basis of which was studied the influence of current, changes in the concentration of inlet contamination on the concentration of the target component at the outlet of the reactor.","PeriodicalId":275585,"journal":{"name":"Modeling, Control and Information Technologies","volume":"1 8","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2019-11-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"113976330","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}
Triangular norms and associative functions arebase of connectives in fuzzy logic and fuzzy systems. Newconnective operator that can generate different classes of fuzzyconnectives is proposed. It is proved that this operator satisfiesthe requirements of such axioms as commutativity, associativity,monotonicity and boundary conditions. It is parameterized andtherefore new triangular norms are obtained. Constructedparameterized triangular norms are of a strict and Archimediantype.
{"title":"Operator for Construction of Archimedian Triangular Norms","authors":"R. Vorobel","doi":"10.31713/mcit.2019.21","DOIUrl":"https://doi.org/10.31713/mcit.2019.21","url":null,"abstract":"Triangular norms and associative functions arebase of connectives in fuzzy logic and fuzzy systems. Newconnective operator that can generate different classes of fuzzyconnectives is proposed. It is proved that this operator satisfiesthe requirements of such axioms as commutativity, associativity,monotonicity and boundary conditions. It is parameterized andtherefore new triangular norms are obtained. Constructedparameterized triangular norms are of a strict and Archimediantype.","PeriodicalId":275585,"journal":{"name":"Modeling, Control and Information Technologies","volume":"1 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":"129420243","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}
Nataliya Salivonyk, Andriy Khrystyuk, Victoria Zhabchyk
The basic steps of developing a microprocessor ultrasonic device for measuring the distance to the object are shown. The structure of the device proposed. Results of the research of work of the developed device for the possibility of its use are presented and analyzed.
{"title":"Development and research of a portable distance measuring device","authors":"Nataliya Salivonyk, Andriy Khrystyuk, Victoria Zhabchyk","doi":"10.31713/mcit.2019.50","DOIUrl":"https://doi.org/10.31713/mcit.2019.50","url":null,"abstract":"The basic steps of developing a microprocessor ultrasonic device for measuring the distance to the object are shown. The structure of the device proposed. Results of the research of work of the developed device for the possibility of its use are presented and analyzed.","PeriodicalId":275585,"journal":{"name":"Modeling, Control and Information Technologies","volume":"133 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":"131479887","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}
Oleksandr Ihorovich Parfeniuk, O. Naumchuk, Olena Olehivna Poliukhovych, P. Mazurek
It is proposed the technology of intellectual measurement of expenses with the use of an artificial neural network for overcoming the constraints caused by nonlinear characteristics of ultrasonic flowmeters. It is presented structural scheme of the proposed technology and structure of the model of the neural network
{"title":"The implementation of optimized neural network to improve the accuracy of flow measurement by ultrasonic flowmeter","authors":"Oleksandr Ihorovich Parfeniuk, O. Naumchuk, Olena Olehivna Poliukhovych, P. Mazurek","doi":"10.31713/mcit.2019.20","DOIUrl":"https://doi.org/10.31713/mcit.2019.20","url":null,"abstract":"It is proposed the technology of intellectual measurement of expenses with the use of an artificial neural network for overcoming the constraints caused by nonlinear characteristics of ultrasonic flowmeters. It is presented structural scheme of the proposed technology and structure of the model of the neural network","PeriodicalId":275585,"journal":{"name":"Modeling, Control and Information Technologies","volume":"PP 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":"126406140","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 hardware of the automated control system of plants' water well-being and the software for all components of the system have been developed.
开发了植物水健康自动化控制系统的硬件和系统各组成部分的软件。
{"title":"Hardware and Software of Automated Control System of Plants' Water Well-Being","authors":"S. Matus, M. Matviychuk, V. Sych, Olena Matus","doi":"10.31713/mcit.2019.32","DOIUrl":"https://doi.org/10.31713/mcit.2019.32","url":null,"abstract":"The hardware of the automated control system of plants' water well-being and the software for all components of the system have been developed.","PeriodicalId":275585,"journal":{"name":"Modeling, Control and Information Technologies","volume":"34 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":"128216419","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}
In this work certain generalizations of the classical derivative of a differentiable function are introduced. The method of time series extrapolation is proposed on the basis of corresponding generalizations. In the basis of this method is the analysis of separated differences. It is proposed procedure of the corresponding differences modification and finding of such order, for which it is possible to find in the certain sense the best forecast value. Then the value of the output function at a point that lies outside the interpolation interval is based on the found predictive value for the separated differences using a special computational procedure.
{"title":"Μ-modification of the “pyramidal” method of data extrapolation","authors":"Yuriy Turbal, A. Bomba, Mariana Turbal","doi":"10.31713/mcit.2019.25","DOIUrl":"https://doi.org/10.31713/mcit.2019.25","url":null,"abstract":"In this work certain generalizations of the classical derivative of a differentiable function are introduced. The method of time series extrapolation is proposed on the basis of corresponding generalizations. In the basis of this method is the analysis of separated differences. It is proposed procedure of the corresponding differences modification and finding of such order, for which it is possible to find in the certain sense the best forecast value. Then the value of the output function at a point that lies outside the interpolation interval is based on the found predictive value for the separated differences using a special computational procedure.","PeriodicalId":275585,"journal":{"name":"Modeling, Control and Information Technologies","volume":"44 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":"122896413","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 objective of this paper is to review of fault detection and isolation (FDI) methods and applications on various power plants. Due to the focus of the topic, on model and model-free FDI methods, technical details were kept in the references. We will overview the methods in terms of model-based, data driven and signal based methods further in the paper. Principles of three FDI methods are explained and characteristics of number of some popular techniques are described. It also summarizes data-driven methods and applications related to power generation plants. Parts of control system applications of FDI in TPPs with possible faults are shown in the Table I. Some popular techniques for the various faults in TPPs are discussed also.
{"title":"Overview of fault detection methods for power plant control systems purposes","authors":"D.О. Shram, O. Stepanets","doi":"10.31713/mcit.2019.30","DOIUrl":"https://doi.org/10.31713/mcit.2019.30","url":null,"abstract":"The main objective of this paper is to review of fault detection and isolation (FDI) methods and applications on various power plants. Due to the focus of the topic, on model and model-free FDI methods, technical details were kept in the references. We will overview the methods in terms of model-based, data driven and signal based methods further in the paper. Principles of three FDI methods are explained and characteristics of number of some popular techniques are described. It also summarizes data-driven methods and applications related to power generation plants. Parts of control system applications of FDI in TPPs with possible faults are shown in the Table I. Some popular techniques for the various faults in TPPs are discussed also.","PeriodicalId":275585,"journal":{"name":"Modeling, Control and Information Technologies","volume":"32 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":"126565701","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 an iterative differential-difference three-step method for solving system of nonlinear equations, which uses, instead of the Jacobian, the sum of derivate of differentiable parts of operator and divided difference of nondifferentiable parts. The numerical examples illustrate how the methods works.
{"title":"On some iterative method for solving nonlinear equations","authors":"O. Kovalchuk, M. Bartish, N. Ogorodnyk","doi":"10.31713/mcit.2019.28","DOIUrl":"https://doi.org/10.31713/mcit.2019.28","url":null,"abstract":"We study an iterative differential-difference three-step method for solving system of nonlinear equations, which uses, instead of the Jacobian, the sum of derivate of differentiable parts of operator and divided difference of nondifferentiable parts. The numerical examples illustrate how the methods works.","PeriodicalId":275585,"journal":{"name":"Modeling, Control and Information Technologies","volume":"75 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":"124251520","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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