Nosov Magnitogorsk State Technical University Research Articles

USING EXPERT REVIEW METHODS TO SELECT TRUE CRITERIA FOR PUBLICATION COLLABORATIONS

The purpose of the scientific work is to assess the quality of a set of scientometric indicators to determine the degree of truth of publication scientific collaborations. The paper presents the definition of a publication collaboration of scientists. The main types of collaborations are described: true and false. A list of external and internal alternatives (indicators) for their assessment has been formed. As an analysis of the system for evaluating scientific activity, a ninescreen diagram of the system for evaluating activities in the field of publication activity of the FSBEI HE “Nosov Magnitogorsk State Technical University” (NMSTU). From the analysis of the scheme, it can be seen that today there is a traditional system for evaluating publication collaborations. It has been determined that the existing system for assessing the degree of truth of publication collaborations must be supplemented with decisionmaking scenarios and an updated list of indicators for assessing links between the authors of scientific papers. For this, a group of experts (heads of scientific and educational organizations) was selected, who formed a list of external and internal alternatives (indicators) to assess the truth of publication collaborations of scientists of a higher educational institution. For the reliability of the results of the formation of the list of alternatives, it was decided that it was necessary to assess the competence and consistency of experts. The list of external alternatives for evaluating the validity of publication collaborations was used as the initial data for peer review. Coefficients were calculated to assess competence and consistency. It is concluded that the generated list of external alternatives is considered qualitative for assessing the degree of truth of publication collaborations.

Investigation of the features of the formation of the structure of steel 08Yu during asymmetric rolling on a new mill 400

A study of the 08Yu steel structure during cold rolling at a new rolling mill in the Zhilyaev Laboratory of Mechanics of Gradient Nanomaterials of the Nosov Magnitogorsk State Technical University. It has been found that asymmetric rolling in rollers with speeds that differ 5 times and all other things being equal, resulted in the formation of a gradient structure. In the upper part of the strip section on the side where the rolling speed was lower, a uniform structure is observed, which is formed at more than half the strip thickness and consists of ultra-fine practically equiaxial grains of less than 1000 nm in size. The formation of the ultrafine structure is explained by the dynamic recrystallization under the conditions of heating the strip to a temperature of 250–300 ºC during rolling. In the lower part, on the side where the rolling speed was higher, a fibrous structure with smaller fragments up to 200 nm in size within individual fibers is clearly revealed. The hardness after asymmetric rolling compared to symmetrical rolling increased slightly and turned out to be more evenly distributed over the section. The difference in its values of different sections was not more than 15 % compared to symmetrical rolling, where the hardness in the central and perephyrian sections of the strip section differed by about 35 %. It has been found that these asymmetric rolling conditions lead to a simultaneous increase in reduction from 50 to 80 % and a decrease in force of almost 3 times per pass compared to symmetrical rolling, which can be explained by grinding the structure.The study was carried out within the framework of grants from the Russian Science Foundation (No. 20-69-46042 dated May 20, 2020), RFBR (No. 20-38-90097 dated September 3, 2020) and Megagrant (No. 075-15-2021-627 dated June 8, 2021).

Preparation of high school students for solving tasks of the data mining olympiads

The article describes the preparation of high school students for the Olympiads on the basics of artifcial intelligence. An analysis of existing Russian and foreign competitions in artifcial intelligence for schoolchildren is presented. The main technologies of artificial intelligence are described. The place of data mining is determined as one of the basic sections of data science and an important fundamental skill for the implementation of tasks in the feld of artifcial intelligence. The features of the implementation of such Olympiads are highlighted, the difculties that participants may encounter when performing Olympiad tasks are identifed. As a solution to the problem, it is proposed to create educational modules for preparing for Olympiads in artifcial intelligence.The structure and content of the educational module for preparing high school students for the Olympiad "The Way to Success" (section "Fundamentals of Artifcial Intelligence"), held on the basis of Nosov Magnitogorsk State Technical University. An analysis of the creative task for preparing for the fnal round of the Olympiad is presented. The task is associated with the use of data mining methods, in the course of its implementation, the students examined a data set — comments of Internet users about a foreign series in order to determine their attitude towards the main characters of the series, to identify countries where the series turned out to be the most popular and discussed.The results of the qualifying round of the Olympiad showed the following: the schoolchildren who completed the training within the framework of the educational module were able to get into the fnal of the Olympiad, the rest of the schoolchildren could not overcome the threshold value of the qualifying testing. The article notes that preparation for modern Olympiads in any subject area is an important factor for passing to the fnal. However, teachers of informatics and mathematics are not yet ready to help schoolchildren solve Olympiad problems in artifcial intelligence, it is important that such educational tracks are provided for the participants by the organizers of the Olympiads.

Development of a finite element model for calculation of the thermal field of coil rolled products in the thermomechanical process

A finite element model has been developed in the Deform-3D software package for calculating the thermal field of low-alloy steel coil rolled products during rolling in the finishing group of stands and cooling on the discharge roller table of the 2000 wide-strip hot rolling mill of PJSC Magnitogorsk Iron and Steel Works (PJSC MMK). The proposed model takes into account heat release during plastic deformation, cooling of the strip due to metal contact with air, heat transfer to the work rolls, cooling of the strip by water supplied in the process of interstand cooling and in the accelerated cooling unit on the discharge roller table. At the same time, the features of cooling by both upper and lower collectors are taken into account. To achieve the required coiling temperature, the possibility of differentiated activation of collectors of the upper and lower sections of the accelerated cooling unit was implemented, which was introduced into the finite element model. Cooling by water jets was updated by dividing the contact of the cooled strip with water into two zones - the area of water impact with the sheet surface and the area of film boiling. As a result of the analysis of the thermal state of the sheet, an assessment was made of the nature of its change depending on the characteristics of each stage of thermomechanical treatment (TMT). The use of the presented model in the development of TMT technological modes makes it possible to evaluate their correctness, as well as to provide the possibility of predicting the structure and properties formed over the thickness of rolled steel in the process of controlled rolling with accelerated cooling.P. P. Poletskov, S. V. Denisov, P. A. Stekanov, E. V. Braichev, and P. G. Adishchev, post-graduate student of the MTa-21-2 group, took part in the work.The work was carried out at the Nosov Magnitogorsk State Technical University with the financial support of the Ministry of Education and Science of Russia as part of the implementation of a comprehensive project to create high-tech production (Agreement with the Ministry of Education and Science of Russia No. 075-11-2021-063 dated 06/25/2021).

Prospects for the production of weather-resistant rolled steel with increased cold resistance

The main advantages and areas of application of weather-resistant steels are considered. The main features of the chemical composition and oxidation mechanism of the materials under consideration are noted. As a result of comparing the main performance characteristics of weather-resistant steels produced by leading foreign and Russian manufacturers, the relevance and prospects of organizing high-tech production of weather-resistant rolled steel with increased cold resistance are substantiated. Special attention is paid to a comprehensive project for the creation of high-tech production, implemented by PJSC Magnitogorsk Iron and Steel Works together with scientists from FSBEI HE Nosov Magnitogorsk State Technical University. One of the promising materials being developed within the framework of the project is weather-resistant rolled steel, which has a high level of strength, ductility and cold resistance. The proposed combination of properties will ensure high efficiency of the functioning of strategic facilities of the oil and gas and machine-building complexes of Russia, as well as transport and bridge building, subjected to the simultaneous effects of low temperatures and high mechanical loads. At the same time, high resistance to atmospheric corrosion significantly increases the service life of the material, reduces operating costs and expands the scope of metal products, including in climatically cold conditions.P. P. Poletskov, S. V. Denisov, P. A. Stekanov, E. V. Braichev, and P. G. Adishchev, a post-graduate student of the MTa-21-2 group, took part in the work.The work is carried out at the Nosov Magnitogorsk State Technical University with the financial support of the Ministry of Education and Science of Russia as part of the implementation of a comprehensive project to create the high-tech production (agreement with the Ministry of Education and Science of Russia No. 075-11-2021-063 dated 06/25/2021).

Study of physicochemical properties of high-quality sinter from factory No. 5 of PJSC MMK during reduction in a hydrogen medium

The research on the reduction of iron ore materials with a particle size of 12–15 mm by hydrogen (flow rate 20 l/h) under a load of 60 kPa during isothermal holding at temperatures of 500, 700 and 1050 °C was carried out in the laboratory of the chair for Metallurgy and Chemical Technologies of the FSBEI HE Nosov Magnitogorsk State Technical University. At a temperature of 1050 ºC, the reduction of the factory No. 5 sinter to a reduction degree of 25% proceeded at a rate of 0.0476% O2/min. At the end of reduction, the shrinkage of the sinter sample was 6.1% of the layer height, which provided a gas pressure drop of 0.27 kPa. The rate of recovery of the sinter from plant No. 5 compared to the rate of reduction of the mixture of sinter from plant No. 5 with pellets from SSGPO or Mikhailovsky MPP in equal proportions is higher on average by 5.1% (rel.) and 7.4% (rel.) at temperatures and degrees recovery 700 ºC and 15%, 1050 ºC and 25%, respectively. The shrinkage of the agglomerate compared to that of the pellets with the same reduction parameters was 1.3 and 2 times smaller, respectively. At a temperature of 1050 ºC and a material reduction ratio of 25%, the gas pressure drop in the sinter bed from Factory No. 5 was 3.7% lower than the gas pressure drop passing through the mixture of sinter with pellets from both manufacturers. The reduction rate of the mixture of sinter from plant No. 5 with SSGPO pellets, compared to the mixture of sinter from plant No. 5 with pellets from the Mikhailovsky MPP, is on average 7.6% (rel.) higher at a reduction temperature of 700–1050 ºC and a reduction degree of 15–25 %.The paper was prepared under support of the grant of RF President № MD-1064.2022.4.

ОПЫТ ВНЕДРЕНИЯ ЭНЕРГО- И РЕСУРСОСБЕРЕГАЮЩИХ ТЕХНОЛОГИЙ В СИСТЕМАХ ЭЛЕКТРОСНАБЖЕНИЯ МЕТАЛЛУРГИЧЕСКОГО ПРЕДПРИЯТИЯ

Abstract. The article considers a set of scientific approaches and technical measures aimed at improving the ef-ficiency of power supply to ferrous metallurgy enterprises, currently being designed by the scientific schools of the Nosov Magnitogorsk State Technical University together with PJSC “Magnitogorsk Iron and Steel Works”. The principles of the formation of mathematical models for energy consumption, the basics of their optimization, as well as practical issues of rationing and planning energy consumption and operational management of the energy economy are de-scribed herein. The study offers examples of the implementation of energy-saving measures at own factory power plants, as well as at such energy-intensive facilities as arc steelmaking furnaces and rolling mills. The experience of PJSC “Mag-nitogorsk Iron and Steel Works” with regard to the introduction of modern automation tools in the energy sector and pow-er supply systems within the framework of the promising development program “Industry 4.0” is presented.

Using on-stream X-ray fluorescence analysis to determine the chemical composition of drill cuttings

Background. The authors investigate the problems arising from the lack of information on the chemical composition of the drilled rocks during the construction of a well. 
 
 Aim. The aim of this study is to determine the possibilities and efficient application of the streaming XRF method for determining the elemental composition of unwashed drill cuttings. The contribution of the paper lies in the lack of experience in the world practice of using streaming XRF analyzers.
 
 Materials and methods. Furthermore, the authors evaluate the possibility to use the streaming XRF method for analyzing the chemical composition of drill cuttings for the development of the oil industry. At the same time, the application of the proposed method is justified. The basis of this study are the results of the application of the streaming XRF method using the CON-X 02 streaming spectrometer for analyzing the chemical composition of drill cuttings not washed from drilling mud. This project has been implemented according the technological project between Gazpromneft — NNGGF LLC in cooperation with Nosov Magnitogorsk State Technical University and Gazpromneft — STC LLC. 
 
 Result. The article presents the results of determined main elements of the composition of drill cuttings. The authors have carried out the analysis of changes in the intensity of the characteristic lines of the main components from the sampling depth. Simultaneously, the authors show the possibilities to derive correlation curves for various elements characteristic of certain rocks in the geological section of a particular field. Moreover, the study reveals the identification and characteristics of geochemical signs of specific target layers. 
 
 Conclusions. Based on the results of the study, authors may conclude that to obtain the correct results on the intensity of spectral lines of various chemical elements during streaming XRF analysis, there is no need to flush the cuttings from the drilling fluid. Finally, it is possible to qualitatively control the main elements of the composition of the drill cuttings.

Use of works of art in the development of emotional intelligence preschool children

Introduction. At the present stage, the expansion of the range of interests of preschool children is a social order of society for the preschool education system. One of the important tasks of modern education is the development of various forms of personal activity of children, including the development of emotional intelligence. Modern pedagogy faces many problems of a psychological nature. One of the most relevant is the low level of emotional intelligence development. In pedagogical practice, certain difficulties of interaction with preschoolers through the emotional-volitional sphere are noted: features of internal experiences and their influence on the behavioral sphere; a vivid expression of the emotional response; emotional disorders in the form of increased anxiety and fatigue; lack of formation of empathy and empathy; unjustified feelings of fear, etc. Materials and methods. To collect the results, we used theoretical and empirical methods: pedagogical diagnostics, observation, questionnaires, and statistical processing of the research results (Pearson's chi-squared test). The study involved teachers, masters, bachelors of the Nosov Magnitogorsk State Technical University (Russian Federation), as well as children (N = 139), parents, teachers and heads of educational organizations. The results of the study. The program was created and tested for the development of emotional intelligence using works of art, including game-fairy tales, exercises, sketches on fairy-tale plots, and advisory material; in creating and conducting generalizing diagnostics for the development of emotional intelligence, identifying new forms of educational activities and components of the educational process. The study conducted using the chi-square test showed statistical differences (p < 0,05) in the results of the diagnostic data of the ascertaining and control stages, which confirms the effectiveness of the development of emotional intelligence of preschoolers by means of artistic works and methods of fairy-tale therapy. In conclusion, the ways to optimize and solve the problems are outlined.

Design of indoor navigation system for buildings with complex hierarchical structure

There is currently a wide variety of navigation system, which allow determining the exact GPS coordinates and building a route taking based on the specified parameters. However, such systems are not suitable for indoor use, mostly due to no access to the floor plans. In view of this, it is relevant to minimize the time of searching for the location of a particular object, including in a building with complex hierarchical structure. The article examines the theoretical and practical developments in the sphere of navigation, conducts their comparative analysis, which indicated the need for designing the module for indoor navigation in a multi-storey building, considering the peculiarities of its floor plan. As a result, the authors designed the structure of the indoor navigation module in a building with complex hierarchical structure using the graph theory for detecting the shortest route and affine transformation algorithms for graphical representation of floor plan of a building on the example of the main building of the Nosov Magnitogorsk State Technical University. The article provides the description of its subsystems and blocks, as well as instruments for determining geopositioning of the object. The authors outline the prospects for the development of indoor navigation system, taking into account the peculiarities of creating electronic floor plans of a building based on the graph theory, as well as development of the algorithm for modification of the parameters of the existing 3D-objects. As a result of full implementation of the project, there will be designed the system of indoor navigation in a multi-storey building with complex hierarchical structure using a mobile app; it will help to easily find the geopositioning of the object and shortcuts.

Социальное партнерство: основные направления сотрудничества

the article is devoted to the mechanisms of implementation of social partnership of the state (Federal state budget educational institution of higher professional education “Nosov Magnitogorsk State Technical University”) and charitable public Association (Charitable Foundation (CF) “Metallurg”) in the social support of citizens, as well as determine ways to improve. The methodological basis of the research is the scientific statements of such scientists as A.G. Akramovskaya, E. Archambault, J. Kendall, T. Levitt, N. Smelser. The article presents the results of sociological studies conducted in 2015–2020 in the city of Magnitogorsk (Chelyabinsk region), which indicate, on the one hand, significant measures of social support for citizens by the CF “Metallurg”, and, on the other hand, the need to develop social partnership in order to increase its effectiveness. The results of the study allowed us to identify the most relevant issues that require special attention of the main subjects of the partnership under consideration: specialists of the public organization and teachers of the Department of Social Work and Psychological and Pedagogical Education of the university. These are: joint development and implementation of social projects aimed at providing social assistance and support to the most vulnerable categories of the population; development of the volunteer student movement and involvement of its best representatives in the implementation of social projects and programs; combining the theory and practice of social support for citizens.

АСИММЕТРИЧНАЯ ПРОКАТКА ЛИСТОВ И ЛЕНТ: ИСТОРИЯ И ПЕРСПЕКТИВЫ РАЗВИТИЯ

A brief historical analysis of asymmetric rolling by well-known Russian scholarly traditions was carried out in this article. The article notes that there has been renewed interest in asymmetric rolling since the 2010s. These processes were considered from a different angle in terms of obtaining the required metal structure. It is shown that one of the most advanced high-performance methods of severe plastic deformation for the metal materials ultrafine-grained structure production of is the process of asymmetric fine-sheet rolling, based on purposefully created asymmetry due to the mismatch of the rolls peripheral speeds. The theoretical foundations of the metals and alloys asymmetric fine-sheet rolling as a method of severe plastic deformation are presented. A comparison of the shear deformation during equal-channel angular pressing for symmetric and asymmetric rolling is made. It is shown that in asymmetric fine-sheet rolling process with a reduction of 60% at optimal process parameters, the shear angle exceeds 80°, and the true strain in one pass is ≈ 3.8…4.8 in sheet thickness. The regularities of the ultra-high shear deformations creation in the processed materials are established based on computer modeling by the finite element method. It is include bimetallic layered composites, during rolling with a mismatch of the rolls peripheral speeds, as well as during asymmetric cryogenic rolling. The analysis of the rolling bimetallic-layered composites possibility in work rolls with a special surface microrelief is carried out. The characteristics of a unique experimental laboratory duo mill with an individual drive of the work rolls for the asymmetric and accumulating rolling processes implementation in the SPD mode, designed and manufactured in South Korea, are given. The mill will be installed in the laboratory of gradient nanomaterials mechanics of the Nosov Magnitogorsk State Technical University.

Difficulties in Applying a Student-Centered Approach in Modern Russian Higher Education

The article attempts to define the application of student-centered approach in foreign language teaching at the Department of Foreign Languages in Engineering (Nosov Magnitogorsk State Technical University). The relevance of the research lies in the fact that it deals with a key issue of interest for teachers and educators as well as for teaching and learning process in general – the education of an active, creative, successful person, capable of self-development and self-improvement. Nowadays the theory of student-centered learning is rather rule than the exception in many educational institutions around the world. Nosov Magnitogorsk State Technical University follows modern educational trends. However, there are some difficulties in full realization of student-centered approach basic principles. The purpose of the research which included the survey of teachers and students on the conception of student-centered learning, was to identify and unleash the potential of a student-centered approach in foreign language learning at a university. The authors concluded that respondents are not fully aware of this approach. The results of self-reflection observations are manifested in the form of various limitations. These limitations are associated with students and teachers. The most important limitations are connected with the lack of motivation for students to study. The practical significance of the research is that its findings can be taken into account when eliminating difficulties in introducing student-centered approach in teaching foreign languages and other disciplines at a university.

Refining technology for titanomagnetite ores from Suroyamskoe deposit

Explored reserves of titanomagnetite ores of Suroyamskoe deposit in Chelyabinsk region is equaled to 11 billion tons. Construction of a new metallurgical enterprise may be relevant for their production and processing. The most promising is the traditional scheme of metal production: ore mining, its crushing and enrichment, production of agglomerate and pellets from concentrates, smelting of pig iron in blast furnaces and steel production in oxygen converters. To establish basic technological parameters of the new production scheme, pig iron smelting from sinter obtained from titanomagnetite ores of Suroyams-koye deposit and its further devanadation (to produce vanadium slag suitable for the production of ferrovanadium) were studied in laboratory conditions of Nosov Magnitogorsk State Technical University. At the initial stage, a calculation was carried out, than experiments in laboratory conditions were made. As a result, the technology was developed for smelting pig iron from sinter obtained from concentrate of Suroyamskoe deposit and its subsequent devanalization to produce two products: pig iron and vanadium slag. It has been established that it is advisable to obtain vanadium in it at least of 0.22 % when smelting pig iron. Dependences of the main indicator of devanadation effi-cience - the content of vanadium oxide in slag - on the concentration of vanadium in pig iron and the amount of slag were found. The fundamental possibility of de-exploitation of experimental Suroyamskii pig iron was confirmed with the production of vanadium slag containing up to 12 % V 2 O 5 with the use of air blast as an oxidizing agent.

Formation of competencies in the field of project management for future informatics teachers

The implementation of project management in the education system is impossible without the development of new types of competencies by teachers, which will allow the use of project management methods in professional activities. The article substantiates the need for training teachers who are competent both in managing student projects and in organizing their own project activities, as well as in project activities and project management of an educational institution. The article describes the experience of building competencies in the field of project management among students — future informatics teachers studying in the field of training 44.04.01 “Pedagogical Education” (master’s program “Information Technologies in Education”) at Nosov Magnitogorsk State Technical University. Based on the requirements of the professional standard 06.016 “Project Manager in the Field of Information Technologies”, the requirements for the competence of specialists in the field of project activities, etc., the author examined indicators for the formation of competency UK-2 “Able to manage a project at all stages of its life cycle” for academic discipline “Project Management in Education”. The methodology of forming competencies in the field of project management in education for masters of teacher education using the digital educational resource developed by the author is highlighted.

Математические модели для исследования теплового состояния тел и управления тепловыми процессами

The purpose of the study is the systematization of problems related to the study of the thermal state of objects and melts in industrial production and ways to solve them. In particular, the problems characteristic for a metallurgical enterprise are: mathematical modeling of electromagnetic fields in systems for induction heating of the hardware industry; development of information support for an energy-saving mode of heating billets before rolling in a continuous-type heating furnace; application of the basis of the classical equations of heat and mass transfer and multivariate analysis to simulate the processes in the ladle furnace unit; development of pseudo-dynamic and quasidynamic models describing the thermal state of an infinitely extended object. All these tasks have a thermal nature and despite the difference in the objects of study, they use mathematical models to study the thermal state of objects and control thermal processes. The implementation of mathematical models is made using modern computer software. All studies were conducted by scientific schools of the Nosov Magnitogorsk State Technical University and were extensively tested and implemented in operating production facilities.

Основные направления журнала «Вестник МГТУ им. Г.И. Носова» (научный обзор)

The paper, devoted to the 85th anniversary of Nosov Magnitogorsk State Technical University, analyzes Vestnik of Nosov Magnitogorsk State Technical University with regard to the ranking of Russian journals. It is stated that in the past 16 years the journal published papers of authors from 28 countries; the editorial board includes well-known scientists from 13 countries. A scientific review of papers issued in 2018 is used as an example to show key areas of the journal, which are important for the world scientific community.

MASTER’S PROGRAM AS A PERSPECTIVE DIRECTION OF PROFESSIONAL TRAINING OF PEDAGOGICAL PERSONNEL IN THE SPHERE OF INFORMATIZATION OF EDUCATION

The article discusses the experience of the implementation of master’s training in the educational program 44.04.01 “Pedagogical education” (“Information technologies in education”) in Nosov Magnitogorsk State Technical University. The article outlines the conceptual foundations of the educational program, shows the structure, reveals the features of the program in terms of positioning in the educational services market. Particular attention is paid to the relationship with the labor market and key employers in the preparation of master's students of teacher education.

TRUE STORY OF «POOR, POOR» PAVEL

Review on the multi-authored monograph «Play by D.S. Merezhkovsky «Pavel I»: contexts, intertexts, metatexts», published in Nosov Magnitogorsk State Technical University is devoted to the discussion of historiosophical concept of D.S. Merezhkovsky, embodied in the play «Pavel I». It is noted that in monograph some promising approaches to the activity of a writer such as: sycretic approach to the investigation of a literary work; search of reasonable balance of documental (historical, original) and fictional principle in the play by D.S. Merezhkovsky; wide historical, philosophical, literary, sociocultural context of an investigated work are viewed.

Identification of Scientific Collaborations: Information Model and Quality Features

The paper considers the problem of constructing a system for evaluating the research activities of the scientific and pedagogical staff (SPS) in a higher educational institution. The analysis of the SPS publication activity in the Nosov Magnitogorsk State Technical University is carried out. The concept of publication collaboration and its comparison with the definition and type of the graph is presented. The research revealed some signs of false collaborations and formed the structure of the array for the collaboration of two scientific and pedagogical workers. Based on the description of the array, an adjacency matrix is constructed, the components of which are its elements. As a result of applying the theory of fuzzy sets, the structure of the linguistic variable Collaboration is determined for defining the type of collaboration and built the membership function for one of the components of the variable.