Ural State University of Railway Transport (USURT) or Уральский государственный университет путей сообщения (УрГУПС) is a public university situated in Yekaterinburg, Russia. It was founded in 1956. USURT is a large modern multidisciplinary technical university mainly focused on training of railway transport specialists of the Urals Federal District.USURT is a vertically integrated educational complex located in the territory of five constituent entities of the Russian Federation: Yekaterinburg, Perm, Kurgan, Chelyabinsk, Tyumen. The university complex includes the head university in Yekaterinburg, a railway transport college, a medical college, institutes in Chelyabinsk, Perm, and Kurgan, branches in Nizhny Tagil and Tyumen, a representative office in Kartaly. The university complex implements a multi-level system of continuing education including pre-university training, secondary vocational education, higher education, and additional vocational education.The university preserves long-standing traditions and develops the latest trends in the field of education, science and innovation and provides a solid base for the formation of the personnel potential of the transport industry. Graduates of USURT are real leaders with technological, organizational and business competencies. The university contributes to the implementation of large-scale projects in Russia and abroad.All educational programs of the university complex, including branches, have passed state and professional-public accreditation.
The paper considers a motion model of a pair of virtually coupled trains taking into account the delay in transmitting information about the start of braking. The maximum permissible delay is determined for the deterministic case, and its distribution is obtained by the Monte Carlo method under variation of train motion parameters.
Статья посвящена современным тенденциям развития сервиса вокзальных комплексов, позволяющим инициировать притяжение населения в их зону. Показано состояние коммерческой деятельности на вокзале Екатеринбурга, выделены наиболее рентабельные виды услуг. На основе обобщения отечественного и зарубежного опыта представлены адаптированные к сервису направления развития инновационных технологий применительно к исследуемой сфере. Обосновано расширение уже существующих видов деятельности и формирование новых услуг с использованием данных геоаналитики. Внедрение современных, востребованных во времени услуг позволит привлечь дополнительных клиентов на территорию вокзалов и, как следствие, повысить конкурентоспособность железных дорог, особенно в пригородном сообщении. The article is devoted to modern trends in the development of the service of railway station complexes, which make it possible to initiate the attraction of the population to their zone. The state of commercial activity at the Еkaterinburg railway station is shown, and the most cost-effective types of services are highlighted. Based on the generalization of domestic and foreign experience, the directions of development of innovative technologies adapted to the service in relation to the field under study are presented. The expansion of existing activities and the formation of new services using geoanalytical data is justified. The introduction of modern, time-demanded services will attract additional customers to the territory of the stations, and, as a result, increase the competitiveness of railways, especially in suburban traffic.
This article presents the results of a comprehensive analysis of biotechnology implementation issues into the Russian economy and studies conducted by foreign and domestic scientists. The research findings suggest that there is a need for systematic state policy, more effective scientific monitoring, and increased public awareness about key characteristics of genetically modified organisms (GMOs) and organic agricultural products. The study's objective was to identify trends in developing a culture of conscious consumption among young Russians (Generation Z) based on consumer expectations and preferences regarding the use of GMO or organic agrarian products. Research outcomes: formalized online surveys and focus group sessions with Generation Z representatives led to the following conclusions: Russian youth generally demonstrate openness towards new technologies and have positive attitudes toward organic products while emphasizing the importance of complete information and reliable scientific data concerning the safety of GMO-based foods. Major concerns were identified related to their impact on health and ecology, lack of exhaustive information causing consumer distrust. The authors highlight the necessity of enhanced control from governmental bodies such as FAS over the accuracy of advertisements and marketing communications provided by producers and retailers of agricultural goods to prevent misinformation and fraudulent practices. One crucial direction involves engaging young people in discussions on healthy eating habits through social networks, participating in joint scientific projects with research institutes and food manufacturers aimed at fostering responsible and science-based attitudes towards innovative technologies within the agro-industrial complex. Within the framework of developing integrated sustainable models of agriculture combining advantages of both GMO and organic production methods, it is proposed to shift focus onto individual and societal values held by Generation Z.
В статье предложена методика расчета значений токов, протекающих во всех элементах системы тягового электроснабжения 2×25 кВ, основанная на применении метода контурных токов. Методика позволяет рассчитывать токи в системе электроснабжения при числе электроподвижных составов на межподстанционной зоне от одного до семи. Рассмотрен пример применения методики при семи электроподвижных составах: составлена расчетная схема межподстанционной зоны системы 2×25 кВ, по ней разработана схема замещения. На схеме замещения выделены независимые контуры и протекающие в них контурные токи. Составлена система линейных алгебраических уравнений по методу контурных токов. Для решения системы приняты значения коэффициентов на основе типового оборудования системы электроснабжения. После первичного решения системы произведено уточнение электродвижущей силы автотрансформаторов системы 2×25 кВ, система решена повторно, получены итоговые значения токов во всех ветвях схемы замещения. The article offers methods of calculation of the current values flowing in all the elements of the system of 2×25 kV traction electric power supply based on the use of the method of contour currents. The method allows to calculate currents in the system of electric power supply with the number of electric rolling stocks in an intersubstation area from one to seven. An example of the use of the method with seven electric rolling stocks has been described: the calculation scheme of an intersubstation area of 2×25 kV system has been developed, the scheme of substitution has been developed on its bases. The scheme of substitution emphasizes independent contours and contour currents flowing in them. On the method of contour currents, the system of linear algebraic equations has been composed. Values of coefficients on the bases of the standard equipment of the electric power supply system have been accepted to solve the system. After the system initial solution, clarification of the electromotive force of autotransformers of 2×25 kV system has been made, the system has been solved again, the final values of currents in all the branches of the substitution scheme have been received.
Статья посвящена определению свойств и закономерностей изменения параметров сушки изоляции коллекторных ТЭД постоянного тока электровозов ٢ЭС٦ с учетом электроосмоса на основе разработанной математической модели. Получены зависимости амплитуды напряжения и емкости С-фильтра от сопротивления изоляции, по результатам которых определен коэффициент формы для электроосмотической сушки. Разработана математическая модель калориферно-электроосмотической сушки, решенная методом конечных элементов в программном комплексе COMSOL Multiphysics для заданной геометрической модели ТЭД 810-й серии. В результате получены зависимости концентрации влаги от времени сушки. По экспериментальным зависимостям сопротивления изоляции от времени построена средняя зависимость. На основе регрессии экспериментальных данных методом наименьших квадратов и результатов математического моделирования получена зависимость сопротивления изоляции от концентрации влаги. Предложенная технология калориферно-электроосмотической сушки изоляции ТЭД в период отрицательных температур воздуха подтверждена экспериментом с предлагаемым циклом подачи горячего воздуха в условиях сервисного локомотивного депо. Расхождение между теоретическими и экспериментальными значениями сопротивления изоляции составило около 7 %. The article is devoted to determining the properties and patterns of changes in the drying parameters of the insulation of DC collector for traction electric motor of 2ES6 electric locomotives, taking into account electroosmosis based on the developed mathematical model. The dependences of the voltage amplitude and the C-filter capacitance on the insulation resistance are obtained, according to the results of which the shape coefficient for electroosmotic drying is determined. A mathematical model of calorific-electroosmotic drying has been developed, solved by the finite element method in the COMSOL Multiphysics software package for a given geometric model of traction electric motor 810 series. As a result, the dependences of moisture concentration on drying time are obtained. Based on the experimental time dependence of insulation resistance, an average dependence is constructed. Based on the regression of experimental data by the method of least squares and the results of mathematical modeling, the dependence of insulation resistance on moisture concentration is obtained. The proposed technology of calorific-electroosmotic drying of traction electric motor insulation during the period of negative air temperatures is confirmed by an experiment with the proposed hot air supply cycle in a service locomotive depot. The discrepancy between the theoretical and experimental values of insulation resistance was about 7 %.
