South Ural State University Research Articles

Options for integrating psychological resources into the structure of social identity

The article discusses options for integrating psychological resources (the level of satisfaction of needs and the choice of values) into the structure of social identity. The study sample consisted of managers in the field of education who carry out management activities and are students in the correspondence department of the Federal State Autonomous Educational Institution of Higher Education «South Ural State University (National Research University)», improving the level of their own qualifications. A total of 80 managers aged from 20 to 35 took part in the study. The presented research was carried out in two stages: at the first stage of the study, the level of expression of psychological resources of managers was studied, at the second stage, the structure of the social identity of managers with different levels of expression of psychological resources was studied. The psychological resources of managers (level of satisfaction of needs and choice of values) were studied using the test «Satisfaction of needs at work» by V.N. Skvortsova, E.A. Maklakova and the «Reflective Choice» technique by V.A. Petrovsky. To study the social identity of managers, the method «Role Relationships of Social Subjects to Creative Individuals» (ROSSTL) by V.G. Gryazeva-Dobshinskaya, N.Yu. Bakunchik, V.A. Glukhova. A.S. Maltseva. As a result of the study, three options for integrating psychological resources (level of satisfaction of needs and choice of values) into the structure of social identity in three subgroups of managers were identified: among managers with a high level of satisfaction of social needs; managers who choose the values of freedom and development; and among managers who choose the value of freedom. The factor structure of social identity was called «Male boss ↔ Accepted by the company», «Rescuer in crisis ↔ Choosing development», «Creator ↔ Choosing freedom», respectively. The identified unique factors are demonstrated by the fact of integration of psychological resources that determine the specifics of the structure of social identity.

Development of a closed-type shot model from composite materials at the South Ural State University.

Development of a closed-type shot model from composite materials at the South Ural State University.

Способы синтеза соединений фосфора R4PX, где Х  электроотрицательная группа

Based on the analysis of literature sources from the beginning of the 21st century to the present, various methods for obtaining phosphorus compounds of the general formula R4PX (X is an electronegative group) have been systematized and described. The present study is a continuation of classical research in the field of chemistry of organic phosphorus compounds in the Laboratory of Chemistry of Organoelement Compounds of South Ural State University. The prin-cipal attention is paid to synthesis methods for tetraorganylphosphonium derivatives based on radical redistribution reactions and substitution reactions, which are used to synthesize tetra-phenylphosphorus bromide and a series of alkyltriphenylphosphonium arenesulfonates, respec-tively. It has been shown that the single product of the interaction of triphenylphosphorus dibro-mide with pentaphenylphosphorus in a benzene solution (1 hour, 25 °C) is tetraphenylphosphoni-um bromide, isolated from the reaction mixture, yielding 92%. Tetraphenylphosphonium benzene-sulfonate has been obtained, yielding 90%, by a substitution reaction from tetraphenylphosphoni-um bromide and benzenesulfonic acid in water. Using a similar scheme, a series of alkyltri-phenylphosphonium arenesulfonates have been obtained with yields up to 92 %: [Ph3PC3H5-cyclo][OSO2Naft-1] (2), [Ph3PCH2СN][OSO2Mez)] (3), [Ph3PCH2СN][OSO2C6H3Сl2-2,5] ∙ ½MeOH (4), [Ph3PCH2OH][OSO2C6H3Сl2-2,5] ∙ H2O (5), [Ph3PEt][OSO2C6H3(NO2)2-2,4] (6), [Ph3P(СH2)2OH] [OSO2C6H3(NO2)2-2,4] (7), [Ph3P(С6H11-cyclo)] [OSO2C6H3(NO2)2-2,4] (8). The complex structures have been proved by IR spectroscopy and X-ray diffraction analysis (XRD). According to the XRD data, crystals of complexes 2–5 have ionic structure; they consist of tetraorganylphosphonium and arenesulfonate anions.

Investigation of the character of change of geometrical dimensions of a tubular billet at its deformation by rolling method

Obtaining bent pipe bends is an urgent scientific and technical task, for the solution of which it is necessary to determine the influence of the deformation process on the geometric dimensions of the billet. It is especially important to control the thinning of the outer wall of the bend, as this parameter is critical for the service characteristics of the bend. At the Department of Machine Building Technologies, Machine Tools and Instruments of South Ural State University (National Research University) works on studying the process of deformation of a tubular billet by the method of rolling with high tension are carried out. The article covers the influence of this deformation method on the wall thickness of the deformed billet, presents data on the character of wall thickness of a tubular billet when it is deformed by the method of rolling with high tension. The data on wall thickness change were obtained in two ways: computer modeling and measurements of experimental deformed pipe billet were carried out. Modeling was carried out using the software package MSC.Mars. The physical experiment on deformation of the tube billet was carried out on the laboratory installation for obtaining the experimental bent branch by the method of rolling with high tension. For the research work, a welded tube billet made of St2 steel, 57 mm in diameter and 4 mm wall thickness was used. In the course of modeling, calculated data on wall thickness change as a result of deformation into a tube bent branch were obtained. The wall thickness of the experimental bend was measured with an ultrasonic thickness gauge. Comparison of experi-mental data and modeling data showed a data discrepancy of 5–8 %. Such a discrepancy indicates the possibility of using computer modeling to predict the thinning of the outer wall in the process of deformation of pipe bends by rolling with high tension.

Classification of multi-type bearing fault features based on semi-supervised generative adversarial network (GAN)

Fault diagnosis is a crucial technology for ensuring the reliable and efficient operation of industrial systems. With the advancement of industrial informatization and intelligence, fault diagnosis methods have the trend shifting from traditional signal processing to deep learning. However, traditional deep learning models are not suitable for industrial scenarios with limited labeled data, imbalanced categories. To address these challenges, this paper proposes a novel approach based on semi-supervised generative adversarial networks (SGANs) to systematically study the fault diagnosis of rolling bearings in the case of unlabeled samples and sparsely labeled samples. In this work, the vibration time-domain vibration signal of the bearing is firstly transformed into a spectrum signal through the fast Fourier transform. This transformed signal is then fed into the GAN model to extract multi-layer sensitive features, providing a deeper understanding of the underlying fault characteristics. Subsequently, the SGAN method utilizes unsupervised learning via spectral clustering algorithms to automatically classify fault patterns in industrial equipment. Furthermore, it enhances semi-supervised learning by incorporating limited label information through softmax functions, effectively discerning the authenticity of unlabeled data. For the effectiveness of SGAN for bearing fault diagnosis, two diverse datasets are utilized including the widely-used Case Western Reserve University dataset and data acquired from South Ural State University. Compared to alternative models, the results underscore SGAN’s robustness, achieving high recognition accuracy and clustering performance. The proposed methodology contributes to the advancement of fault diagnosis technologies by combining unsupervised and semi-supervised learning techniques.

Понимание текста как феномен межкультурной коммуникации

The article examines the specifics of understanding a literary text in the aspect of intercultural communication. The purpose of the article is to show national characteristics in strategies for understanding a literary text. The results of an experiment conducted by the counter-text method, developed in the works of A. Novikov, are presented. The material for the experiment was the text “Before Dawn” by M. Prishvin, to each sentence of which respondents had to write down the first reaction that arose in their minds. The experiment involved 20 native speakers of Russian and Chinese, who are students of South Ural State University. Before the start of the experiment, foreign respondents confirmed their knowledge of Russian as a foreign language by passing the standardized test TRKI-1. Analysis of the experiment results showed that in the group of native Russian speakers the most frequent reaction is the PROGNOZ type, which is an assumption about how the text will unfold further. The respondents of this group actively engaged in dialogue with the author, and even argued with him. In the group of native Chinese speakers, the most frequent reaction was GENERALIZATION, which is a reduction of the meaning of a phrase to a more general statement. The identified differences allow us to speak about the existence of understanding strategies determined by the characteristics of national culture, including stereotypes of perception of certain phenomena that have developed during socialization. The article suggests the possible influence of the stereotype ‘Russians are a fighting nation’ on the understanding of M. Prishvin’s text by Chinese respondents. The article concludes that the knowledge, beliefs and expectations of an individual, formed under the influence of their native culture, form the basis for the interpretation of the text they perceive. In conclusion, the conditions for optimizing text understanding in intercultural communication are outlined.

Factors to increase the effectiveness of an online foreign language course for young scientists

Introduction. The rapid development of digital technologies, online format of the educational process due to the spread of Covid-19 have actualized online learning in universities. The combination of work and postgraduate studies by young scientists, limited time frames, low motivation make it necessary to find the optimal ways to organize the educational process in a foreign language. The considered online course provides young scientists with the opportunity to improve the level of foreign language communicative competence in academic and research fields. Purpose of the article: to improve the effectiveness of the online foreign language course for young scientists. Research methods. The experiment involved 445 first- and second-year graduate students of South Ural State University. To determine the effectiveness of the online course in the program of foreign language study in graduate school and increase the level of foreign language communicative competence the following methods were used: method of pedagogical experiment, method of observation, econometric method of mathematical statistics Difference in Differences (DID). The method of questionnaires was used to identify the educational needs of graduate students. The B.D. Jones's MUSIC® Model of Motivation was chosen as the methodological basis for the redesign of the online course. The relevance and completeness of the strategies of the B.D. Jones's MUSIC® Model of Motivation according to graduate students’ opinions were tested using a parametric Student's t-test with dependent sampling. Results. As a result of the experiment aimed at improving the effectiveness of the online foreign language course for graduate students, positive dynamics in the level of foreign language communication competence of graduate students in the experimental group compared with students in the control group was verified by the Change criterion, which reflects the difference in the results of the PhD Foreign Language Exam of graduate students, recorded by DID: "excellent" – (Change > 12%), "good" – (Change < 9.5%), "satisfactory" – (Change < 2.5%). Discussion and conclusion. It was proved that the identified factors to improve the effectiveness of the online course for young scientists (redesign of the online course, taking into account the educational needs of graduate students) determined the positive dynamics of the level of foreign language communication competence of graduate students.

Information Support of the Cultural Sector: Achievements, Problems, Prospects

The 2nd International Scientific and Practical Online Conference “Information Context of Culture: Resources, Technologies, Service” was held on October 11—12, 2022. Conference organizers are the Russian State Library (RSL), the Russian State Library of Arts (RSLA) and St. Petersburg State Institute of Culture (SPSIC). The purpose of the event is to summarize scientific research and practical experience on the issues of information support in the cultural sector, demonstrate the best achievements, identify problems and ways to overcome them. The leitmotif of the forum was the topic of cooperation between libraries, archives and museums of the member states of the Commonwealth of Independent States. During two days of the forum, more than 80 representatives of the cultural sector from the RSL, the RSLA, the Boris Yeltsin Presidential Library, the national libraries of Kazakhstan and Uzbekistan, public libraries of almost two dozen regions of Belarus, Kazakhstan and Russia, as well as from the universities of culture in Moscow, St. Petersburg, Chelyabinsk, Tashkent, as well as from the South Ural State University, worked in video communication mode. During the event, more than 900 viewings of the broadcasts of the meetings were recorded on the RSL YouTube channel. Within the framework of the conference, there were held the plenary session, two sessions of the Section “Information potential of libraries for the development of the cultural sector” and two special events: The 12th Conference/Meeting of the heads and specialists of information services on culture and art “Libraries — in the Year of Cultural heritage of the peoples of Russia” and the Round table “Development of library and information space on the basis of border libraries of the CIS member states: conceptual approaches and advanced directions”. In order to improve the work on information support for representatives of the cultural and art sector, the conference participants recommended to promote digital transformation aimed at the formation of common access resources on culture and art and improvement of information services; as well as to strengthen cooperation on the formation and mutual use of information resources created by the libraries of the CIS member states.

ТЕХНОЛОГИЯ РАЗВИТИЯ КРЕАТИВНОСТИ БУДУЩИХ ИНЖЕНЕРОВ С ИСПОЛЬЗОВАНИЕМ MOODLE

The article investigates the problem to develop creativity of future engineers capable of working in complex high-tech conditions. Creative skills as the ability to use imagination to generate new ideas are the fundamental ones for engineers. The aim of the article is to offer a pedagogical technology to develop creativity of engineering students at university using Moodle learning platform. The humancentered system-synergetic methodology and system-information approaches were chosen as the methodological bases. These approaches enable to consider this technology as a system for collecting, storing and transferring educational content at university with the support of humanism in achieving system-synergetic community of education process participants. The authors offer a pedagogical technology to develop creativity of students of engineering specialties characterized by integrity, consistency, phasing, and focus on results. The authors evaluated the effectiveness of applying the technology for developing the creativity of future engineers using the comparative analysis of the results of a stage-by-stage monitoring that showed an increase in the level of creativity of students. 96 engineering bachelor students from South Ural State University took part in the study. This technology can be used in the educational process of the university to improve other soft skills.

РАЗРАБОТКА МЕТОДА НЕИНВАЗИВНОГО ИЗМЕРЕНИЯ РАСХОДА ЖИДКОСТИ И ГАЗА ЧЕРЕЗ СТЕНКУ ТРУБОПРОВОДА

In connection to methods developed for determining “liquid-gas” volume-mass parameters, carried out at South Ural State University, this article presents a new method for measuring liquid and gas flow rates. The method makes it possible to measure a turbulent flow’s convective velocity through a pipeline wall and the volumetric flow rate of a liquid or gas. A brief description of Taylor's “frozen turbulence” hypothesis, which forms the basis of the method, is given, and the main problems associated with its proof in relation to the problem of determining the convection velocity of turbulence are identified. A mathematical signal processing method is presented based on two-dimensional frequency-wave number spectral processing and spatiotemporal signal filtering. A functional scheme and the input signal processing algorithm of the proposed device is presented. Mathematical modeling was performed in the ANSYS CFD computational fluid dynamics package using the hybrid eddy-resolving turbulence model SBES to determine the optimal configuration of the experimental setup. A brief description is given of the non-invasive sonar flow meter “K-Omega P1” prototype based on method presented and of numerical simulation results. Tests were performed on the METRAN-UPA-2000 flow test workbench which is a secondary standard. Full-scale test results on the flow test workbench for five flow rates are presented. Conclusions are drawn about the research results to date and further steps to improve the measurement method using the k-omega beamforming processing method.

Interactive forms of the final lesson in a group of foreign students

This article considers the specifics of the organization of the final lesson with the help of interactive forms in the classroom of foreign students studying the Russian language. The aim of this article is to describe and analyze the effectiveness of conducting a final lesson on the topic under study in the form of a press conference and a job interview. This form allows you to qualitatively systematize the studied material, work out the skill of retelling and compiling an oral monologue, gain experience in speaking to an audience, develop communication skills, and also prepare for business communication in the upcoming professional activity. The advantage of such a lesson is seen in the high generalizing potential of the types of work used, offered in the lesson in a game form. The authors demonstrate the main structural elements of the lesson and the main types and forms of work on a specific example, and also provide the main results. The proposed forms of final lessons have been tested for several years in different classrooms of foreign students at South Ural State University.

ПРИМЕНЕНИЕ ТЕХНОЛОГИИ «ЭДЬЮТЕЙНМЕНТ» ПРИ ОБУЧЕНИИ ИНОСТРАННЫХ СТУДЕНТОВ АНГЛИЙСКОМУ ЯЗЫКУ

In the context of globalization, many Russian universities are interested in attracting foreign students to receive higher education, however, for successful studying, foreign students need to integrate into education process, as well as into the socio-cultural life of the country. The contradictions that arise between the requirements of modern society for the effective integration of foreign students into the educational process and the insufficient development of the methodology for teaching a foreign language to foreign students lead to the need to develop a new learning technology. The purpose of the research is to analyze the use of edutainment technology means in teaching English for groups of foreign students of South Ural State University. The authors analyzed the concept of “edutainment technology”; revealed the awareness of foreign students about the types of means of edutainment technology in the education process of the university; analyzed the effectiveness of the use of edutainment technology in foreign language teaching. The educators’ attitude to the use of edutainment technology as a means of language training was revealed. The edutainment technology was introduced into the process of teaching English to foreign students, based on the analysis of educators' answers. To perform the tasks the theoretical (analysis of existing research) and empirical (questionnaires, interviews, Cronbach’s alpha method of mathematical data processing) methods were applied. The results of the study showed that most of the students were not aware of some of the means of edutainment technology and their application possibilities. Educators were not aware of many of the edutainment technology means. The main difficulties the educators faced were: lack of time to master this technology, lack of knowledge of new tools. These results will help educators and specialists in the field of language training in teaching English to foreign students using edutainment.

Виртуальный образ экологической катастрофы (на примере Кыштымской аварии 1957 г.)

The article represents first results of the implementation of a scientific project dedicated to the problems of forming virtual images of some environmental processes taking place in the modern world. On the example of the Kyshtym accident in 1957 yr. authors analyze the main elements of the virtual image of one of the largest environmental disasters of the 20th century, show the dynamic and individualized nature of this image, note the high degree of its emotional perception by the youth (primarily student) audience. Also the article contains materials of a small sociological research of students of the South Ural State University in the spring of 2023, which studied the processes of forming the cultural memory of young people about the Kyshtym accident in 1957. The main conclusion of the research is that the most important component of the virtual image of the ecological catastrophe still is a visual range, however, as new information technologies develop, it may have «strong» competitors. From the point of view of the youth audience, today the strongest emotional impact on the consumer of the relevant content is provided by video materials, which include not only verbal information, but also musical accompaniment. To the number of elements of the image that create the most disturbing sensations from working with content dedicated to the Kyshtym accident in 1957 include: the radiation hazard sign, the Techa River, elements of a chemical protection suit, the word Chernobyl, a symbolic image of the explosion.

Цифровая грамотность как инструмент профилактики деструктивных практик в цифровой среде: по материалам региональной научно-практической конференции

Introduction. On February 28, 2023, on the basis of South Ural State University, with the support of the Research Center for Monitoring the Prevention of Destructive Manifestations in the Educational Environment (Chelyabinsk Institute of the Develop- ment of Vocational Education), there was held a regional scientific and practical conference “Preven- tion of destructive practices in the digital environ- ment and measures to improve the digital literacy of students: presentation of research results and the formation of an expert community in the field of social sciences and humanities in the region”. The purpose of the study is to present the key ideas from the reports and the results of the con- ference. Methods. In order to present the key ideas from the reports, the authors use general scientific methods, such as analysis and synthesis, induction, deduction, abstraction. Scientific novelty of the research. In the current discourse of the conference, digital was defined as a new human habitat, which contains the potential for human growth and at the same time anthropo- logical and social risks. Results. In meta-reality, between real and virtual, only monitoring of public opinion on existing and potential social threats is not enough. In this case, sociatria can be a practical response to digital threats and risks. Conclusion. In the current digital environment, constructive practices of individual social subjects and social groups coexist with destructive practices. Sociatria can become a social response to the issue of monitoring, preventing and combating digital threats, and digital literacy is an anthropological response that should be created in the educational environment.

Results of Scientific Research and Training of Specialists in Renewable Energy at the South Ural State University

This article describes the history of establishing the educational discipline on renewable energy at the South Ural State University (national research university), including the development of dedicated laboratories and methodological support, and the features of the educational processes in undergraduate, graduate and postgraduate studies. The innovative teaching methods with using open on-line courses and virtual test benches are described. The project-oriented learning in the framework of master's programs opens the possibility to expand the learning boundaries and reach a high level of student research works with publishing the obtained results in high-ranked journals. The article shows the main scientific work areas, as well as the goals and objectives of establishing the international innovation center Alternative Energy and the shared research center Wind Energy. Some topics and results of research works on using renewable energy sources in heat and electricity generation processes, and ways to protect solar modules from overheating, contamination and degradation are presented. The further development of the research area involves establishing and using an educational center on the basis of the Porogi hydroelectric power station (HPS), which is among the oldest ones in Russia, that includes renewable energy facilities such as wind power plants, solar power plants, and a small hydroelectric power station. The further improvement of the educational process is seen in the development of educational programs for advanced training of elite personnel for distributed energy systems.

Построение дискурса о цифровом как феномене информационной современности

Introduction. The subjects and actors of social re- ality have entered the digital age. This is expressed at several levels: first of all, in objects and technol- ogy, also at the level of everyday life of a modern person and social groups and worldview in general. A philosopher, like no one else, is capable of seeing such transformations and their subsequent reflec- tion. This reflection is carried out simultaneously in the bosom of classical social and humanitarian disciplines, including philosophy, sociology, cultural studies, for example, and in the space of new areas of scientific knowledge. Such a new discipline, the focus of which is digital, is digital anthropology. The article presents a summary of the speeches of the leading speakers of the methodological school “Digital Anthropology: Theoretical and Applied As- pects”, which took place in May 2022 at South Ural State University. The purpose of the article is to identify and to analyze possible directions of philosophical reflec- tion of the digital in the context of conceptualizing digital anthropology. Methods. The study is based on general scientific methods, analysis and synthesis, induction, deduc- tion, abstraction. The analysis of the speeches of the speakers of the methodological school “Digital Anthropology: Theoretical and Applied Aspects” was carried out primarily on the basis of the interpreta- tion method and systematic approach. Scientific novelty of the study. The article pre- sents specific steps in building a discourse about digital through analyzing the speeches by Russian philosophers and their subsequent discussion within the framework of the work of the methodo- logical school “Digital Anthropology: Theoretical and Applied Aspects”. Results. The exposition of speeches within the framework of the methodological section varied thematically from the ontological, anthropological and axiological aspects of digitalization to specific cases of Internet Studies. As part of the work of the methodological school, the following topics were presented: “The problem of values in digital culture” (Yury Yu. Vetutnev), “Impact content in social media” (Sophia V. Tikhonova), “Construction of ideas about the past in social media” (Denis S. Artamonov), “Repost and like as “alternatives” to traditional scientometrics” (Elena E. Chebo- tareva), “Value-semantic dimension of subjectivity: opportunities and threats of the digital society” (Sergey V. Borisov), “Digital literacy in conditions of surveillance capitalism and Network-centric war- fare” (Kirill E. Rezvushkin), “Feature films and digital technologies: the future of one illusion” (Taras A. Varkhotov). Conclusion. In the work of the methodological school, a wide range of problems related to digital everyday life was identified. These problems actual- ize the axiological, social, anthropological optics of research. All participants of the school showed from different perspectives that new tasks arose for philosophy to comprehend and conceptualize the changing reality. The philosopher, living in the digital space, is able to reflect on the digital and build a discourse about it. In our opinion, the con- cept of digital anthropology claims to take the place of such a discourse.

Определение профессионального риска работников на предприятии электроэнергетики

At the Department of Life Safety of the South Ural State University, a methodology for assessing occupational risk was developed, which uses an integral assessment of the working conditions based on the standard for lost working time from morbidity with temporary disability. Occupational risk assessment according to the proposed method considers the impact of all dangerous and harmful factors on the employees. The assessment has a relatively low labor intensity, and can be carried out in a short time at the enterprises (in the organizations) with any type of economic activity through the specially developed software. According to the developed methodology, an assessment of the occupational risk was carried out in the organization of IDGC of Urals — Chelyabenergo with the coverage of about 5,000 employees. The article presents the results of the conducted calculations and their analysis. Using the formulas given in the article, the indicators can be determined both for one employee and for a group of employees (a structural unit or an organization as a whole). As a result, it was established that, in general, there is a moderate occupational risk in the branch office of IDGC of Urals — Chelyabenergo. This is a good result for a production organization. By analogy, the calculations were carried out for the production departments of the organization and the structural divisions of each department. When calculating on the structural subdivisions, additional information is provided about the employees with increased occupational risk (medium, significant, and high). In the absence of such employees, no information is provided. The article shows a comparative diagram of the occupational risk of the employees of IDGC of Urals — Chelyabenergo, and the employees of its production departments. In the production departments of the organization, there is a low, medium, and moderate risk. There are no production departments with significant and high occupational risk. Recommendations are also given on the possible application of the results of the risk assessment.

Preface

The International Russian Conference on Ecology and Environmental Engineering (RusEcoCon-2022) was organized by South Ural State University (national research university), Chelyabinsk, Irkutsk National Research Technical University, Irkutsk, Ural Federal University named after the first President of Russia B.N. Yeltsin, Yekaterinburg, Ural State University of Architecture and Art, Yekaterinburg and lnterCon LLC, Chelyabinsk on 16-20 of May, 2022 in Sochi, Russia.The conference program encompassed a wide range of topics and was divided into 4 sections: Sustainable Urban Environmental Development, Resources and Environment Engineering, Energy Science, Green Technology and eco-innovation, Technology potential for Environmental Management 4.0.The spread of the coronavirus COVID-19 made still adjustments to our live in this year, including the organization of our conference. Participants could take part in the conference as in a traditional face-to-face format and as format of video conference remotely.The conferees represented 29 cities from Russian and other countries. The international program committee has selected totally 65 papers for publishing in IOP Conference Series: Earth and Environmental Science (EES) (IOP Publishing Ltd.).On behalf of the Organizing Committee we express appreciation to our colleagues who participated in the review procedure of the papers and especially thank members of International Program Committee, who helped us to organize this conference.We express our gratitude to the participants for the active work at the conference sections and look forward to meeting at RusEcoCon-2023 next March in Sochi, Russia. Editors: Prof. Dr. Andrey A. Radionov,Prof. Dr. Dmitriy V. Ulrikh,Prof. Dr. Svetlana S. TimofeyevaProf. Dr. Vladimir N. Alekhin

Decision-making in the conditions of introduction of automated design systems of technological processes in enterprises of oil machine building

To ensure the effectiveness of professional activities in the face of increasing requirements for the scope of design work and production preparation time, computer-aided design of technological processes (CAD of TP) systems are used. However, there is a problem of safe implementation of CAD of TP. The aim of the study is to develop a decision-making methodology for adapting CAD of TP to the conditions of oil machine building enterprises and to the work of personnel based on a systematic approach to threat analysis. The methodology includes methods for choosing CAD of TP, using text and graphic prompts when entering information, as well as applying methods for unifying various CAD systems and adapting them to enterprise conditions at the database level. The results of the study are implemented in CAD for operations performed on multi-spindle horizontal automatic lathes and are used at South Ural State University and Azerbaijan Technical University. Keywords: technological process, computer-aided design, decision making, design methods, ways of adaptation, oil machine building.

Study of plasticity and deformation resistance of 13Cr type steel used for manufacturing pipes of high strength grades

The article presents the results of a study of plasticity and strain resistance of steel grades 08Cr13Ni4Mo1V, 12Cr13Ni3MoNb and 12Cr13Ni3MoNb-1 in the process of hot plastic deformation. Hot deformation is implemented by the methods of uniaxial upsetting, uniaxial tension and torsion, characterized by different schemes of the stress-strain state of the metal. The study was implemented using the technical base of the Laboratory for Physical Modeling of Thermomechanical Processes of the South Ural State University – the multifunctional research complex "Gleeble 3800" using the modules "HydraWedge", "Torsion" and "PocketJaw". The results of the study indicate significant differences in the plasticity of the studied materials during hot torsion, based on the obtained values of the ultimate degree of shear deformation. It has been established that the recorded differences can also be due to the initial state of the workpiece. In addition, there was a difference in the plastic properties of steel grades 12Cr13Ni3MoNb and 12Cr13Ni3MoNb-1 with minor differences in chemical composition. The obtained scientific information on the deformation properties and ductility of the studied steel grades in the process of hot deformation served as the basis for the rational choice of material used for the manufacture of hot-pressed oil-grade pipes of high strength groups with the required quality level.