Abstract. The standard k-epsilon turbulence model, adapted for welding workshops, equipped with fixed workstations with sources of pollution took into account only the convective component of heat transfer, which is quite reasonable for large-volume rooms (with low density distribution of sources of pollution) especially the results of model calculations taking into account only the convective component correlated well with experimental data. For the purposes of this study, when we are dealing with a small confined space where necessary to take account of the body heated to a high temperature (for welding), located next to each other as additional sources of heat, it can no longer be neglected radiative heat exchange. In the task -to experimentally investigate the various types of heat transfer in a limited closed space for welding and behavior of a mathematical model, describing the contribution of the various components of the heat exchange, including radiation, influencing the formation of fields of concentration, temperature, air movement and thermal stress in the test environment.Conducted field experiments to model cubic body, allowing you to configure and debug the model of heat and mass transfer processes with the help of the developed approaches, comparing the measurement results of air flow velocity and temperature with the calculated data showed qualitative and quantitative agreement between process parameters, that is an indicator of the adequacy of heat and mass transfer model.
The purpose of the article is to substantiate the relevance of the development of cross-border education in regional university as an integral part of the innovative development of these universities and compliance with the trends of global globalization, including in higher education. The author's position is based on the results of monitoring of the teaching staff of the Don State Technical University (Rostov on Don), which confirmed that the University teachers positively assess the situation in this University, its professional, technical and communication resources for the development of cross-border education, but are not ready to fully integrate into this process due to the lack of qualification and motivated focus of the University on the effective development of international education. The article discusses different points of view on the trends in cross-border education in the Don State Technical University, reveals the reasons for the low penetration of cross-border education in regional universities.
Researched is the problem of the use of computer technologies in the activities of a teacher-psychologist in remote interaction with students with the aim of formation of effective learning process. The relevance of the issue lies in the complexity of the current social, economic and geopolitical situation, which ambiguously affects the educational process and the work of teachers in the current conditions. By creating specialized constructs using computer technologies, a teacher-psychologist can work much more widely and with the greatest coverage with those subjects of the educational process who are interested in this or for whom psychological support is an important element of normal life, stabilizing their psychological state and comfortable behavior in society. The research is aimed at studying the experience of teachers-psychologists in regional universities who present specialized computer programs for remote testing of students and teachers (students and faculty), as well as evaluating these constructs and developing recommendations for diversifying solutions in adapting such tests to real University practice in order to increase their effectiveness. In conclusion, we developed a construct for evaluating the effectiveness of remote work of a teacher-psychologist in higher education when analyzing psychological problems of university audience.
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