Yugra State University Bulletin最新文献

{"title":"Experimental determination of static characteristics of loads in nodes of a 6 kv power supply system","authors":"A. Bigun, L. Vladimirov","doi":"10.18822/byusu202302115-123","DOIUrl":"https://doi.org/10.18822/byusu202302115-123","url":null,"abstract":"Subject of research: static characteristics of nodes of 6 kV power supply systems with asynchronous load. \u0000Purpose of research: experimental determination of static characteristics by active and reactive power, calculation of the reserve coefficient by static stability of a node with asynchronous load. \u0000Object of research: power supply systems with a complex load, which includes asynchronous motors. \u0000Main results of research: the results of an active experiment to determine the static characteristics of the load node are presented. The measurements were carried out using devices that record the quality of electricity. Voltage regulation was carried out by the RPN device, the current transformers on the input switch were selected as the connection point of the device. Static characteristics of active and reactive power were constructed using interpolation and extrapolation tools. The critical voltage of the load node is determined. The coefficient of static stability margin is determined.","PeriodicalId":375097,"journal":{"name":"Yugra State University Bulletin","volume":"9 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-07-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116961020","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}

{"title":"About some approaches for converting test scores into grades","authors":"Mikhail Korotkov, A. Petrov","doi":"10.18822/byusu2023029-16","DOIUrl":"https://doi.org/10.18822/byusu2023029-16","url":null,"abstract":"Subject of research: Computer testing for evaluating the results of mastering an academic discipline in a higher educational institution. \u0000Purpose of research: The problem of subjectivity in determining threshold values when translating test scores (from 0 to 100) into the usual five-point scale of marks. \u0000Methods and objects of research: It is proposed to use methods of mathematical statistics for processing test results data in determining the threshold values of test scores. \u0000Main results of research: The approaches currently used in practice are considered and evaluated. Variants of alternative approaches to solving the problem are proposed.","PeriodicalId":375097,"journal":{"name":"Yugra State University Bulletin","volume":"137 7","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-07-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114052165","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}

{"title":"Application of neural networks for prediction of power consumption parameters","authors":"A. G. Lyutarevich","doi":"10.18822/byusu202302124-132","DOIUrl":"https://doi.org/10.18822/byusu202302124-132","url":null,"abstract":"Research was carried out within the framework of the state task of the Ministry of Science and Higher Education of the Russian Federation (topic Development of wavelet analysis models for non-stationary modes of electrical networks to improve the reliability and efficiency of power supply to consumers, topic code: FENG-2023-0005). \u0000Subject of research: predictive neural network model for a daily load schedule. \u0000Purpose of the study: prediction of power consumption based on the graph of electrical loads using a hybrid neural network. \u0000Object of research: methods for predicting the parameters of the power supply system. \u0000Main results of research: the results of forecasting the parameters of the power supply system based on daily load curves are presented. The simulation was carried out in the MATLAB software package. As a forecasting tool, a neural network was used, for the training of which load values averaged over half-hour time intervals and coefficients characterizing daily load schedules were used. The results obtained showed that the hybrid network gives a fairly accurate result, thereby confirming the adequacy of using a neural network to predict power or electricity consumption. The results of the study can be used for short-term forecasting and other parameters of the power supply system.","PeriodicalId":375097,"journal":{"name":"Yugra State University Bulletin","volume":"38 4","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-07-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131575377","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}

{"title":"Determination of unknown parameters of a piecewise linear risk function by the method of mixed estimation","authors":"S. Noskov","doi":"10.18822/byusu20230217-21","DOIUrl":"https://doi.org/10.18822/byusu20230217-21","url":null,"abstract":"Subject of study: the problem of determining the parameters of a piecewise linear risk function. \u0000The purpose of the study: apply the apparatus of linear-Boolean programming to solve this problem. \u0000Methods and objects of research the object of the study is the formalization of a meaningful statement of the problem of minimizing the risk of undesirable consequences of the functioning of the analyzed system, the methods are regression analysis and the apparatus of mathematical programming. \u0000The main results of the study an approach to determining estimates of the parameters of a piecewise linear risk function by using the mixed estimation method is described, which allows us to reduce this problem to a problem of linear Boolean programming. Numerical example solved.","PeriodicalId":375097,"journal":{"name":"Yugra State University Bulletin","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-07-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129835516","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}

{"title":"Purpose and tasks of punishment","authors":"Evgeniya E. Melyukhanova","doi":"10.18822/byusu20230277-82","DOIUrl":"https://doi.org/10.18822/byusu20230277-82","url":null,"abstract":"Subject of research: is the norms of the criminal law devoted to the purposes of criminal punishment. \u0000Purpose of the study is to determine the purpose and objectives of punishment, as well as the need for their legislative consolidation. \u0000Methods of research: due to the specifics of the study, the methods of system-structural and functional analysis are used as the main ones. \u0000Main results of research: since punishment is a consequence of the commission of a crime, it is self-sufficient and does not need an essential goal-setting, as a result of the conducted research, we believe that it is necessary to abandon the formulation of the purpose of punishment in the Criminal Code of the Russian Federation.","PeriodicalId":375097,"journal":{"name":"Yugra State University Bulletin","volume":"21 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-07-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130536273","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}

{"title":"Method and the device of actualization of controlling effect loading of knot of the electric power system","authors":"A. Shuvalova, V. Polishchuk","doi":"10.18822/byusu202302144-152","DOIUrl":"https://doi.org/10.18822/byusu202302144-152","url":null,"abstract":"Subject of research: is the technique of identification СCL in electric power system knots. \u0000Purpose of research: consists in working out of a technique of monitoring of changes КREL in electric power system knot. \u0000Methods of research: imitating modelling of electric modes, digital processing of signals, method of natural experiment. \u0000Main results of research: the technique of monitoring КREL of knot of an electric power system of digital processing of the information based on a method has been as a result developed, having author's specific features, also has criteria of suitability of data and the device realising a technique is developed. Experimental approbation of work of the device analyzing data from means of a telemetering, an operatively-measuring complex or automated data management system is spent. Device check has shown, that on an indication range 0,75 1,2Uном the error of identification КREL has made 0,2 % that speaks about high reliability of an offered technique of actualisation КREL.","PeriodicalId":375097,"journal":{"name":"Yugra State University Bulletin","volume":"32 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-07-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124724563","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}

{"title":"Computer analysis and rapid assessment of data obtained by measuring residual stresses after vibration-hardening of samples","authors":"E. Galimov, A. Tyurin, Artur V. Gimbitsky","doi":"10.18822/byusu20230268-74","DOIUrl":"https://doi.org/10.18822/byusu20230268-74","url":null,"abstract":"Subject of research: is the use of computer analysis in measuring residual stresses. The purpose of the study is to create a program for evaluating and clustering numerical data obtained during the measurement of residual stresses. \u0000Object of research: is a computer model of experimental data processing. This model uses a modified order of approximation of data received from sensors. \u0000Main results of research: a program of computer analysis and rapid evaluation of numerical data has been developed. With the help of a software product, in the R programming language, calculated and experimental data are processed automatically. In the structure of the mathematical model for calculating residual stresses, a principle of a different order of approximation is introduced, which approximates not the result of multi-stage calculations, but the data obtained from sensors. This solution makes it possible to reduce the error of calculations and increase the adequacy of the model as a whole, and the developed program makes it possible to quickly evaluate the measurement results.","PeriodicalId":375097,"journal":{"name":"Yugra State University Bulletin","volume":"59 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-07-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134321999","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}

{"title":"Decision support models and methods to analysis and development in the IT services and equipment repair organizational and production processes management field","authors":"A. O. Tashkin","doi":"10.18822/byusu20230222-30","DOIUrl":"https://doi.org/10.18822/byusu20230222-30","url":null,"abstract":"Subject of research: is the models and decision support methods in the field of organizational management and IT services and equipment repair production processes. \u0000Purpose of research: is to analyze existing and create new models, algorithms and technologies for the implementation of a decision support system for the service platform in the field of IT and equipment repair. \u0000Methods and objects of research: include systems management theory, decision theory, automatic text processing methods, automatic control theory, information systems design theory, optimization theory and object-oriented programming. \u0000Main results of research: is a prototype aggregator platform, reflecting services in the IT and equipment repair, system architecture, development tools, interface.","PeriodicalId":375097,"journal":{"name":"Yugra State University Bulletin","volume":"17 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-07-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125228006","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}

{"title":"Influence of continuous ion beams on the changes in the morphology of surface layers and performance properties of a tungsten-free hard alloy of KNT16 grade","authors":"A. Badamshin, S. N. Povoroznyuk, Andrey Krutko, O. Burgonova","doi":"10.18822/byusu20230245-52","DOIUrl":"https://doi.org/10.18822/byusu20230245-52","url":null,"abstract":"Subject of research: the article studies the effect of continuous ion beams of Ar++Zr+ and N++Ti+ compositions, with ion energy E = 20 keV and radiation dose D = 5⸱1017 ion/cm2, on the change in morphology, microhardness and wear resistance during finishing turning processing of metal-cutting plates made of tungsten-free hard alloy grade KNT16 (TiCN-Ni-Mo). \u0000The purpose of the study: the development of technological modes of ion-beam processing aimed at improving the operational characteristics of metal-cutting tools from tungsten-free hard alloys of the TiCN-Ni-Mo system. \u0000Methods and objects of research: the object of research was metal-cutting plates made of tungsten-free hard alloy grade KNT16 in the initial state and after modification of their surface layers by continuous ion beams of Ar++Zr+ and N++Ti+. The change in the wear resistance of cutting inserts after ion modification was estimated by constructing kinetic curves of wear of the rear surfaces of the inserts during finishing turning of bars made of 40KhN steel. The microhardness of the samples was determined using a Shimadzu HMV-2 microhardness tester using the Vickers method. The change in surface morphology was assessed using atomic force microscopy on an Ntegra prima scanning probe microscope. \u0000Research results: using the method of atomic force microscopy, using the N++Ti+ beam as an example, it was shown that ion-beam treatment leads to selective sputtering of the binder phase in a thin surface layer of the irradiated hard alloy. It has been experimentally determined that ion modification contributes to an increase in the average service life of cutting inserts by 4060% compared to the initial ones during finishing turning of 40KhN steel in the normalized state. It has been established that ion irradiation with an Ar++Zr+ beam leads to an increase in the average value of the microhardness of the KNT16 alloy by ~ 20%, and with an N++Ti+ beam by ~ 10%. Physicochemical processes are proposed that are responsible for changes in the properties of metal-cutting inserts made of tungsten-free hard alloy KNT16 as a result of modifying its surface layers with ion beams.","PeriodicalId":375097,"journal":{"name":"Yugra State University Bulletin","volume":"291 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-07-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117316877","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}

{"title":"Socio-demographic characteristics of those convicted of criminal logging of forest plantations on the territory of the khanty-mansi autonomous okrug – yugra","authors":"Alexey S. Shaposhnikov","doi":"10.18822/byusu202302105-112","DOIUrl":"https://doi.org/10.18822/byusu202302105-112","url":null,"abstract":"Subject of research: socio-demographic characteristics of a criminal convicted of an act provided for in Article 260 of the Criminal Code of the Russian Federation. \u0000The purpose of the study: based on the analysis of the judicial practice of the Khanty-Mansi Autonomous Okrug Yugra in cases of illegal logging (Article 260 of the Criminal Code of the Russian Federation), to propose a socio-demographic characteristic of convicted persons in the autonomous district. \u0000Methods and objects of research: the methodological basis is represented by the dialectical method of scientific cognition. In the process of research, specialized methods of cognition were used. Thus, when presenting the empirical material, formulating the results, and drawing conclusions of the research, methods of formal logic were applied. In compiling the socio-demographic characteristic of convicted persons, analysis, synthesis, as well as the comparative legal method were used. \u0000The main results and conclusions based on the results of the study: convicted persons for committing illegal logging are male individuals aged 50 years and older, with a secondary education, and currently unemployed.","PeriodicalId":375097,"journal":{"name":"Yugra State University Bulletin","volume":"77 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-07-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131477031","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}