Process Technology Research Articles

Reinforcement of the steel columns structure of the industrial hall weakened by intense corrosion

Owing to the severe impact of the corrosive environment associated closely with the technological process, steel structures, including the columns described in the study, which constitute the main framework of the industrial hall, are prone to corrosion due to inadequate protection. This corrosion has resulted in emergency conditions. The paper presents proposals for strengthening these columns, preceded by expert assessments of their technical condition, geodetic measurements, load-bearing capacity analysis, and an evaluation of the technical feasibility of conducting repairs during continuous industrial operations. The results of these analyses are detailed in this paper

Small-scale Bio Gas Combined Heat and Power Plant with Biochar Catalyst

Alternative energy sources allows to replace traditional fossil fuels and firewood. However the most widely used wind and solar power plants can not provide constant power generation due to multiple factors that makes necessary to develop new types of power sources and to to improve efficiency of already existing ones. One of such energy sources are bio gas-fueled power plants which allow to combine the power generation and organic waste disposal functions. Efficiency and quality of bio gas production in such facilities can be significantly increased by using different catalysts such as biochar. A brief analysis of biochar production usage perspectives was held which showed that it can be used in different applications and can significantly increase efficiency of different technological processes. The influence of biochar on the biogas production processes was studied. The structure of bio gas-fueled heat and power plant with local bio gas generation was proposed.

ICT in Teaching Foreign Language in a Ukrainian University

Modern technologies play such an essential role in human life that it is impossible to imagine a full-fledged existence without them. Their application is possible in almost any field of economy, improving human’s life and increasing the efficiency of work. Technologies in education give students and teachers access to a much more considerable amount of information and opportunities compared to learning without technology. Today a student can learn a foreign language directly by hearing it not only in a video or audio recording, but also with the help of various applications, communicating with native speakers, learning their culture. Many scholars have been researching the role of ICT in language learning and have proved its effectiveness. The aim of the article is to determine the role of ICT in foreign language learning at Ukrainian Universities. In addition, we conducted a questionnaire of the English language teachers to determine the frequency of ICT usage at lectures. The results of the researched proved the hypothesis, set in the research, that the younger the teachers, the more often and diversely they use modern technologies in the educational process. Using ICT in teaching foreign languages requires not only the will and time of the teacher but also the skills and abilities to use modern technologies and Internet resources. The introduction of ICT in the educational process will have a positive effect on the results of student learning, among which we will highlight student interest in the educational process, modern and practical materials, immersion of students in the language and cultural environment, the opportunity to better study and master the academic material, communicate with native speakers.

Banking Service Technologies as a Tool for Increasing the Efficiency of Interaction with Clients

Introduction. The efficiency of customer service in a commercial bank is inextricably linked with the need to implement modern banking technologies that affect the speed and quality of the service provided. The intensity of development of banking technologies requires a study of their features and application criteria. Purpose of the study. To study the trends in the implementation and development of modern technologies in banking and their impact on the quality of bank customer service. Methods. The study used such general scientific methods as analysis and synthesis, formal and dialectical logic, statistical processing methods, and a systems approach. The object of the study was Sberbank PJSC, a leader in the implementation of modern technologies in the banking market. Results. The article considers the main components of banking technologies. The influence of technologies on the effectiveness of banking services is substantiated. Positive and negative aspects of the implementation of modern banking technologies in the customer service process are highlighted. Modern service technologies used in the banking system when creating a digital infrastructure, regulated by the Central Bank, are highlighted. The trends in the use of modern banking technologies are considered based on the degree of digitalization development in the bank, age preferences, as well as as a result of the impact of the coronavirus pandemic. The performance indicators of Sberbank PJSC as a technological leader in the banking services market are considered. Conclusions. Effective interaction of banks with clients in the context of digital transformation is carried out using modern banking technologies containing many components with appropriate characteristics. Maximizing efforts to use modern technologies contributes to the expansion of the client base and profit growth.

Технологии цифровой экономики в обучении переводу

Introduction. Due to the active introduction of digital technologies into human activity, there is a change in the way of work organisation, changes in the content of processes, including the profession of translator. Inclusion of the study of the peculiarities of the use of digital economy technologies in the educational process allows preparing future specialists for their professional activities. The aim of the work is to identify the main features of digital economy technologies, to determine the possibilities and directions of their use in the activity of a translator, as well as to identify the content of digital competences and ways of forming them in linguistics students in the educational process. Materials and methods. The methodology is determined by analytical approaches to identifying the features of digital economy technologies, the comparative method allowed us to form approaches to the content of digital competence in translation activity. The method of point-rating assessment allowed us to identify the level of formed designated knowledge, skills, abilities and competences. The survey method allowed to get feedback from the 4th year students of the direction “Linguistics” participating in the sample. As a theoretical basis we used scientific works devoted to the issues of digital competences of translators, as well as digital technologies in their professional activities. The results of the study and their discussion. The introduction of the issue of the use of technologies of the digital economy into the educational process of training future translators allows us to define the content of the discipline “Information Technologies in Translation”, the components of the translator's digital competence determine the directions of competence formation and the content of the current control. The policy of import substitution and sanctions has imposed requirements on the relevance of the applications and services used, which poses difficulties for the technical organization of the learning process and allows us to formulate new criteria for the selection of software. The results of the interim control showed an increase in the efficiency and quality indicators of the learning process in the discipline. Conclusion. A properly organized digital environment, modern information technologies selected on the basis of scientific criteria, an educational process aimed at motivating professional work and assessing the formation of both digital and translation competence allow to increase the efficiency of learning and its quality in the training of translation specialists.

Exploring the Impact of MBTI Personality Types on Teaching Methods

The importance of personality traits impacting teaching practices is comprehending how teachers at different educational system levels treat learners, develop curricula, adopt applications and technologies, and give feedback. This research studies the influence of the correlation between the MBTI personality types of educators in the University of Swat and their teaching preferences, in addition to identifying educators’ learning style preferences connected to organized and flexible lesson planning, and active and reflective teaching. Under a quantitative research design approach, a structured questionnaire was completed by 50 teachers and associated staff. MBTI was used to determine participants' personality types with the researcher having established a Teaching Preferences Questionnaire to determine the participants’ perception about various teaching and learning styles. The feedback provided was made using a 5-point Likert scale and data analysis was done using SPSS version 27.0. To test the correlation between the various teaching preferences and the MBTI personality types, a set of statistical tools which included independent T-tests, ANOVA, Chi-Square tests, logistic regression, and Pearson correlation test were employed. This study revealed a significant relationship between personality traits and teaching behaviors. Teachers with relatively greater levels of feeling-oriented and intuitive characteristics were observed to adopt a dynamic approach to teaching which involved students incorporated concepts such as teaching involving students and had greater empathy and concern towards students. It was also found that students with certain personality types are more willing to adopt different technologies for enhancing the processes of teaching and learning. The study reveals a profound influence of the personality traits formulated by the MBTI on the choices of educators in teaching and the real methods applied. More specifically, the features of being feeling-oriented, intuitive, and judging predetermine the outlook on approaches to Active Teaching, structured lesson planning, application of technology in the learning process, and feedback methods.

INTEGRATION OF THE UNIVERSITYSTUDENTS’KNOWLEDGE THROUGH NEW INFORMATION TECHNOLOGIES

Thearticle touches upon the ways of implementing the integration of the universitystudents’ knowledgethrough new information technologies, the content and methodology of integrating the knowledge of students based on the use of new information technologies in the educational process of the university, and as well as the results of specially organized practical-experimental work. The authorsconducted researchto integrate the improvement of the quality of education through information technologies. The purpose of the researchisto justify theoretically the integration of universitystudents’knowledge through new information technologies and to prove its effectiveness in practice.Pedagogical aspects of the modeling process, stages of pedagogical modeling are presented in the article. The article also presents the methodological, procedural (technological) and instrumental levels of the model, its purpose, monitoring of the formation of necessary competencies, as well as the result.The model shows the logical-structural nature of the implementation ofintegration of the university students’ knowledge through new information technologies, the rules, principles, and conditions of competence formation.Students can master the integrated educational material through new information technology equipment, understanding the importance of digested knowledge, it isdetermined that onecan use it independently as needed, and it is proventhat the quality of individualeducation is at a high level.The studytouches uponthe process of integrating the knowledge of universitystudents using the concepts of "The use of new information technologies", "Integration through new information technologies", and formed a referenceof the scientific and methodological basis for the integration of students' knowledge through new information technologies. Fromscientificpoint of view, the methodological basis for the development of integrated programs and projects in general educationand special disciplines, including the specifics ofthe information technology, hasrevealed the decisions of the task.

Impact of Blockchain Technology on Logistics and Foreign Trade Turnover in Kazakhstan

The purpose of this study is to analyze the impact of logistical factors on Kazakhstan's foreign trade turnover for the period from 2013 to 2023, with a particular focus on cargo transportation volumes, freight turnover, container traffic, and transit transport volumes. The research employs a comprehensive and robust methodology that includes data collection, regression analysis, and model refinement to ensure the validity and reliability of the results. The regression analysis initially included all collected variables, but the model was refined to address multicollinearity and retain statistically significant predictors. The model initially included all variables, but was later refined to address multicollinearity, retaining only statistically significant predictors. The results of the analysis showed that the volume of transit transport is a significant factor affecting the foreign trade turnover of Kazakhstan. The model demonstrated a positive and statistically significant coefficient for the volume of transit transport (0.004534, p-value = 0.025962), which confirms the hypothesis of its crucial role. Additionally, the potential integration of blockchain technology in logistics processes is explored, suggesting that such advancements could enhance transparency, efficiency, and reliability in managing transit goods. By adopting a comprehensive approach that examines multiple logistics factors simultaneously and leveraging a long-term dataset, this research offers novel insights into the logistics-trade relationship in Kazakhstan.

EXPLORING POSSIBILITIES IN THE STELLARIUM FOR TEACHING ASTRONOMY IN THE EARLY YEARS OF ELEMENTARY EDUCATION

Astronomy is considered one of the oldest sciences of humanity. Its themes have always fascinated human beings. In this concept, this study aims to analyze the possibilities of using a Learning Object, the Stellarium software, in the classroom in the early years of Elementary School. The study is part of the qualitative research model and, to examine the Learning Object, descriptive analysis will be used, as it is the one that best suits the purpose of this study. The theoretical bases are based on Meaningful Learning, which values ​​prior knowledge, considered as the foundation for new knowledge. In this context, since Learning Objects can help teachers in their practice, Stellarium stands out as having the potential to provide opportunities for learning this science, as well as bringing technologies closer to the classroom. The results obtained demonstrate that this software can be used to work with Astronomy in the different years of Elementary School, in line with what is proposed by the BNCC, with a strong aspect for innovation. The teaching sequences proposed in this work aim to stimulate the insertion of technologies in the teaching-learning process.

생성형 인공지능 기술이 출판 콘텐츠 생산 과정 변화에 미치는 영향 연구

Artificial intelligence technology is being applied to the publishing industry in various forms. This study focused on content among the C-P-N-D perspectives that use artificial intelligence technology that is affecting the publishing ecosystem as a media ecosystem analysis framework. As a result of the study, visual intelligence technology was being applied to image generation areas such as book covers and book design generation of publications. Language intelligence technology was being applied to content planning, automation content generation, content editing and revision areas in connection with text generation. The expert system used artificial intelligence technology in the publishing process to optimize various areas such as content planning, creation, editing, and marketing, and bring about changes in the efficiency of work and reduction of production cost. This study discussed changes and major issues, which were grafted in the publishing area and artificial intelligence technology focused on content (C). Understanding the environmental changes and applications that artificial intelligence technology will bring to the publishing industry can strengthen the understanding and direction of the publishing industry.

IMPLEMENTASI KETERAMPILAN ABAD 21 DALAM PEMBELAJARAN BERBASIS MEDIA TEKNOLOGI INFORMASI DAN KOMUNIKASI DI SEKOLAH DASAR

Twenty-first century learning prepares future generations to acquire the skills necessary for the modern era. In this learning process, information and communication technology (ICT) serves as a tool or media to achieve a learning process which emphasizes the 21st century skills students must develop, particularly through the implementation of ICT-based learning media. This study aims to investigate the utilization of ICT media in learning activities, the challenges in using ICT media during the learning process, and the 21st century skills outcomes of students after implementing ICT-based learning media. The research uses a qualitative approach with a descriptive method, collecting data in the form of words and images. The study involved 19 participants, consisting of one (1) school principal, two (2) fourth-grade teachers, and 16 fourth-grade students at SDIT Mumtaz Al-Bantani. The results indicate that the use of ICT-based learning media in educational activities has been effective, and the utilization of ICT media as a learning tool has successfully improved students' 21st century skills.

ПРИМЕНЕНИЕ СКАНИРУЮЩЕЙ ЭЛЕКТРОННОЙ МИКРОСКОПИИ В РЕВЕРС-ИНЖИНИРИНГЕ ЭЛЕКТРОННОЙ КОМПОНЕНТНОЙ БАЗЫ

The article shows the relevance of scanning electron microscopy in the problems of analysing and synthesising micro- and nanoscale structures of semiconductor devices. The aim of the article is to analyze the structure quality of semiconductor devices in integrated circuits, to restore the sequence of technological operations and reverse engineering. To achieve this goal, the following tasks are solved: dielectric and conductive structures of semiconductor devices in integrated circuits are studied, the results of measuring the linear dimensions of the semiconductor device elements are analyzed, the dustiness coefficient is calculated. The study applies the methods of a full-scale experiment, digital methods of processing graphic information. A sample of an integrated circuit manufactured using field technology is selected as the initial data; the information and measuring system is built on the basis of a KYKY 8000 scanning electron microscope with a control computer. As a result, images of the element structures of field-effect transistors in the integrated circuit are obtained, on the basis of which the dustiness coefficient is calculated. The results show that with the help of scanning electron microscopy it is possible to analyze the technology of manufacturing semiconductor devices, to determine the sequence of execution and features of technological operations, to identify the causes of product defects to optimize technological manufacturing processes.

Development of a model of the process of development of manufacturing defects in automation means

In automated process control systems, automation equipment (sensors, converters, amplifiers, etc.) with technical defects arising during their manufacture, which are one of the main causes of failures, is widely used. The paper establishes the possibility of using the laws of nonequilibrium thermodynamics as the basis for determining the relationship between the controlled parameters of automation equipment and the parameters of the displayed medium, which made it possible to build a deterministic model of the development of production defects and, ultimately, determine the directions for changing and adjusting the technological processes of production of automation equipment. A method has been developed for implementing a guaranteed forecast of changes in the parameters of automation equipment based on solving the evolution equation using optimal filtering algorithms, which is the subject of research. The purpose of the work is to improve the quality and reliability of automation equipment by improving the monitoring of defects arising in the production of instruments, functional units and sensors of automation equipment. The article solves the following problems: analysis of existing approaches to the problem of manufacturing defects and methods for their detection and setting a research task; modeling of the process of development of production defects causing changes in the technical condition of automation equipment; development of a decision-making method based on guaranteed prediction of the technical state of automation equipment. The methodology of work is based on the methods of thermodynamic description of the kinetics of processes (when developing a model of the process of development of production defects that cause a change in technical condition) and methods of assessment and forecasting based on optimal filtering algorithms (when developing a decision-making method based on guaranteed foresight of technical condition). The results of the work include a model of the process of development of manufacturing defects that cause a change in the technical condition of automation equipment, and a decision-making method based on a guaranteed forecast of the technical condition of automation equipment. Conclusions. The paper establishes the possibility of using the laws of nonequilibrium thermodynamics to determine the relationship between the controlled parameters of automation equipment and the displayed medium, and to build a deterministic thermodynamic model of the development of production defects. Disclosed is an equation of evolution of technical state of automation equipment based on a deterministic kinetic model of processes occurring in a multicomponent medium, and an observation model which takes into account errors caused by instability of external effects and measurement errors. Disclosed is a method of implementing a guaranteed forecast of change in parameters of automation equipment based on solving the evolution equation using optimal filtering algorithms, which are used to solve estimation and prediction problems.

INNOVATIVE APPROACH TO ENSURING THE QUALITY OF GAS TURBINE ENGINE PARTS PRODUCED BY SELECTIVE LASER SINTERING FOR UAV

The research objects are gas turbine engines parts, manufactured using an innovative method of additive manufacturing – selective laser sintering. The main problem solved in this work is the low quality of the surface layer and the residual porosity of the parts obtained by this method, which significantly limits their operational characteristics and durability. As a result of the experimental studies, rational operating parameters of diamond smoothing were established. This allowed to significantly improve the surface quality and increase the operational characteristics of parts made of heat-resistant alloys INCONEL 718 and an intermetallic alloy based on titanium aluminide OX45-3ODS. The effectiveness of diamond smoothing is explained by local plastic deformation and compaction of the surface layer of parts under the influence of high contact pressures and temperatures. This leads to a significant reduction in surface roughness, an increase in the surface hardness due to strain hardening and a significant reduction in the size and number of residual pores. A characteristic feature of the obtained results is the ability to control the quality parameters of the surface layer by varying the diamond smoothing operating parameters – smoothing force, feed, radius, and geometry of the smoother's working part. The established regularities of the smoothing operating parameters have an impact on the quality characteristics of the surface. This information can be utilized in the development of highly efficient technological processes for the production and restoration of gas turbine engines, critical components of unmanned aerial vehicles, obtained through selective laser sintering. Implementing the elaborated technological recommendations will permit broadening the range of goods produced by additive manufacturing and enhancing their capacity and dependability during operation under conditions of cyclical loads and extreme temperatures.

Analysis of technologies of disposal and use fibrous paper skopje

The article examines the current state and trends in the development of waste management technologies in the pulp and paper industry, with the aim of analyzing the reasons that hinder, and sometimes make impossible, the effective utilization of fibrous waste paper to obtain environmentally safe materials and raw products. The production of paper products is one of the most capital-intensive and energy-intensive industries, second only to the metallurgical and chemical industries, with a correspondingly large amount of waste and a negative impact on the environment. The technological processes of scum formation as a result of waste paper recycling and paper production wastewater treatment are considered and analyzed. Skopje is the final waste of the pulp and paper industry, which is formed at various stages of the paper and cardboard manufacturing process, therefore it is deposited in landfills. Multiton volumes of skopje require significant areas for its storage. Despite the low IV hazard class, this leads to serious environmental problems, as the leachate from the skopje landfill pollutes surface and ground water. Technologies of possible disposal and reuse of skopje, known in domestic and foreign literature, are described and analyzed. The technology of reusing scoop is determined by its relatively environmentally safe physicochemical composition. The indicated fibrous, mineral, extractive constituents and lignin determine the possibility of reusing skopje, mainly for the construction industry. The perspective of the complex use of multi-tonnage waste – slag, sludge, ash and slag of thermal power plants as plasticizers, fillers, binders and binding components in the production of building structural and heat-insulating materials is named. Technologies for using scapula as a filler in the production of building materials require a high content of inorganic compounds and a minimum amount of organic compounds. A high content of fibrous particles and a low content of mineral substances is necessary when using scapula in the production of composite wood composite materials. The specified technological limitations ensure only small amounts of skopje use in the production of building materials. The effectiveness of using skopje as an additive to the asphalt mixture for road construction and production of fuel materials is determined by the economic costs of transportation and dewatering. It is noted that the high humidity, ash content and low calorific value of scum are the main reason for the lack of effective technologies for its utilization. The solution to the problem is the use of low-energy technologies through the direct use of osprey as a component of the soil mixture for biological reclamation of man-made landscapes. The article substantiates an environmentally safe and socially favourable option for using a soil substrate based on osprey. It is emphasised that the humidity and organic viscosity of the plant origin of osprey form the agrotechnical properties of soil substrates of prolonged action, which ensure optimal technological efficiency of phytomelioration of degraded lands. The reclaimed areas will reduce greenhouse gas emissions from the soil, prevent wind and water erosion, and ensure the environmental safety of natural and man-made ecosystems.

FORECASTING AND OPTIMIZATION OF CATALYTIC CRACKING UNIT OPERATION UNDER CONDITIONS OF FUZZY INFORMATION

This paper discusses the application of nonlinear regression to forecast and optimize the operation of catalytic cracking units under conditions of fuzzy information. Catalytic cracking is a crucial process in oil refining that produces high-quality gasoline and other light hydrocarbon products. However, the complexity of the process and the uncertainty of initial data complicate the modeling and optimization of plant operations. To address this issue, a nonlinear regression method is proposed that accommodates the fuzziness of input and output parameters described by linguistic variables. The methodology includes the collection and formalization of expert knowledge, the construction of fuzzy models, and their integration into the process control system. Forecasting is performed by creating regression models that describe the relationships between operational parameters and product quality characteristics. The paper presents a procedure for developing and applying nonlinear regression models, describes algorithms for synthesizing linguistic models, and provides examples of their use to optimize the operation of catalytic cracking units. The modeling results demonstrate the high adequacy and accuracy of the proposed method, as well as its advantages over traditional approaches in conditions of uncertainty and data scarcity. The scientific novelty of the research lies in the development and testing of advanced nonlinear regression models adapted for analyzing and optimizing catalytic cracking processes based on fuzzy data. These methods take into account the specificity and uncertainty of process data, improving the accuracy and reliability of forecasts, which facilitates more effective management of production processes in the petrochemical industry. The main reason for conducting this study is the need to improve the control of oil refining processes, particularly catalytic cracking, which plays an important role in producing high-quality gasoline. The complexity of this process and the presence of fuzzy information caused by fuzzy initial data require the development of new modeling and optimization methods. Existing traditional models based on deterministic methods are often insufficient under uncertainty. This leads to a decrease in the accuracy of process control, which can negatively affect the quality of the final product and production efficiency. The use of nonlinear regression in combination with fuzzy logic is a more flexible and adaptive approach that allows you to take into account the fuzziness and uncertainty of data and use expert knowledge to build models that match the actual operating conditions of the units. Thus, this study aims to solve the key problems associated with data uncertainty and the complexity of the catalytic cracking process, which will improve the accuracy of forecasting and optimization of the units. The main contribution is creating a model that uses nonlinear regression methods in combination with fuzzy logic. This allows uncertainty in input data (such as reactor temperature or pressure) to be effectively considered and processed to improve gasoline and other product yield forecasts. It is shown that using nonlinear regression combined with fuzzy logic significantly improves the management of technological processes, increases the output and quality of products, and reduces production costs. The conclusion of the paper discusses the prospects for further development of the methodology and its application to solve similar tasks in other areas of chemical technology.

THE IMPACT OF TECHNOLOGICAL MODERNIZATION ON THE ECONOMIC DEVELOPMENT OF KAZAKHSTAN

In modern conditions, the transition of the economy of the Republic of Kazakhstan to an innovative path of development is possible only on the basis of changes in the technological process of all sectors of the real sector of the economy. The basis for the technological modernization of the economy is innovation, which has reached a new level in the process of evolution. The main purpose of the study is the possibility of assessing technical modernization as a factor influencing the economic development of Kazakhstan. Important for assessing the development of the country's economy are the parameters, which include GDP, foreign direct investment, added value of industry, and high-tech exports. The study examines indicators assessing technological modernization and economic development in various countries. Based on data from the Bureau of National Statistics of the Agency for Strategic Planning and Reforms of the Republic of Kazakhstan, as well as website data theglobaleconomy.com The equations are based on correlation and regression analysis. The generated equation describes the level of GDP based on 48 countries of the world where the Republic of Kazakhstan is present, but at the same time, all the presented data are used for 2023. The added value of industry, which is one of the significant components of GDP, is used to form the development of the basis of industrialization. Taking into account the technological modernization of Kazakhstan, it should mainly capture industrialization, but with current trends, it should also take into account the modern digital economy. In conclusion, suggestions are given on the existing problems of technological modernization.

METALLOGRAPHIC ANALYSIS OF NON-METALLIC INCLUSIONS IN SEMI-KILLED STEEL (GRADE 25G2S) DEOXIDIZED WITH A COMPLEX ALLOY Fe-Si-Mn-Al

This study presents a metallographic analysis of non-metallic inclusions in steel samples obtained from six different heats of the oxygen converter shop at JSC «Qarmet» and under laboratory conditions at the Karaganda Industrial University. The investigation focused on semi-killed steel samples deoxidized using traditional technology under industrial conditions and with a complex alloy containing Fe-Si-Mn-Al under laboratory conditions, aiming to identify the types and assess the level of contamination by non-metallic inclusions. The results revealed the presence of various types of non-metallic inclusions, such as corundum, chromite spinel, chromium oxides, as well as titanium nitrides and carbonitrides. The degree of contamination by non-metallic inclusions ranged from 2 to 3 points. The analysis showed that the use of a complex Fe-Si-Mn-Al alloy instead of traditional deoxidizers can affect the quantitative and qualitative composition of non-metallic inclusions. It was established that the complex alloy promotes the formation of more stable inclusion phases, which can positively impact the mechanical properties of the steel. It was also found that different production technologies and the use of deoxidizers can significantly influence the quantity and types of non-metallic inclusions, requiring further study and optimization of technological processes. Therefore, the results of this study can be valuable for metallurgical enterprises in selecting optimal steel deoxidation methods and improving steel quality, as well as for further scientific research in the fields of metallurgy and materials science.

The influence of anisotropy on the character of hardening in additive high-strength alloys

The purpose of this work is to establish the dependence of the coefficients of planar anisotropy on the intensity of localized deformations in various loading ranges of transverse and longitudinal sections of samples of heat-resistant powder alloy Inconel 718 manufactured using SLM technology. The role of technological anisotropy of samples characteristic of SLM technology and its effect on the hardening of Inconel 718 alloy products is evaluated. Methods. To achieve this goal, the deformation diagrams of Inconel 718 powder alloy samples manufactured using SLM technology, measured during their stretching according to GOST 11701-84, were analyzed. Flat samples with a dividing grid applied to their surface were subjected to loading. During the tests, localized deformation of the samples in different sections was determined by measuring the geometry of the images of the dividing grid. A specially developed photo and video recording technology was used to capture these images. Results. The statistical analysis of the type and parameters of the deformation diagrams made it possible to determine the nature of changes in the intensity of stresses and deformations of the samples of the studied material. The linear character of its tensile hardening in the region of small values of strain intensity and the power-law character of hardening in the range of strain intensity from 0.03 to 0.17 were established. Conclusion. A significant effect of the technological anisotropy of Inconel 718 heat-resistant powder alloy samples obtained using SLM technology on the intensity of deformations is shown. The necessity of taking this fact into account in the development of technological processes for the production of responsible products from the studied material has been revealed.

Dried Laminaria thalli extract for stimulating germination and digestibility of oats and buckwheat

Despite their beneficial properties, cereal crops contain a number of antinutritive substances, the amount of which can be reduced by germination. In this work, we test the hypothesis about the possibility of stimulating the germination of cereal crops (on the example of oats and buckwheat) and increasing their digestibility using a dried Laminaria thalli extract. The research was conducted using hulless oats (Avena nudisativa) for germination and hulled buckwheat grain (Fagopyrum esculentum), as well as dried Laminaria thalli. Germination was carried out at a temperature of (20±2) °C for 120 h, using drinking water (control) and drinking water with addition of 1 wt% of dried kelp thalli. The germination intensity was assessed based on the mass of 1000 grains, sprout length, and the number of germinated grains. In all samples, the mass fraction of extractive substances and dry matter digestibility with modifications were determined. It was found that the addition of dried Laminaria thalli to water in the amount of 1 wt% stimulates the germination of oats and buckwheat, as well as their digestibility, significantly. The experimental samples demonstrated an improved water absorption and an increase in the weight of 1000 grains, sprout length, and the number of germinated grains. The use of dried Laminaria thalli extract in germination of oats and buckwheat for food purposes reduces the technological process up to two days with a simultaneous increase in digestibility and minimization of losses of extractive substances.