530 research outputs found

    Estimation of the total inelasticity coefficient in interaction of greater than or equal to 20 TeV hadrons with lead

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    Experimental data on the interaction mean free path of hadrons with energy E 20 TeV in lead obtained with multilayer X-ray emulsion chambers(XEC) are compared with results of simulation of nuclear-electromagnetic cascades in lead chamber. It is shown that, to explain experimental data, the value of the inelasticity coefficients, K .8 should be assumed

    Формирование готовности и мотивации студентов к самостоятельной работе в высшем техническом учебном заведении

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    The article is devoted to the problem of organizing independent work of students in a higher technical educational institution, held in Tyumen Industrial University of the Nizhnevartovsk branch. This paper analyzes the requirements for students to master the skills of independent work on the basis of the competency model of a university graduate in accordance with the requirements of the professional standard of higher education. The competence of a successful specialist in any dynamically developing industry is considered. The author made an analysis of the works of scientists, teachers, researchers, dealing with the problem of motivation and improving the efficiency of the organization of work activities of students. The tendency to steady interest of students in additional material related to the profile of the main direction of study in the form of problem situations is revealed. Three forms of organization of independent work are highlighted and described in detail: extracurricular, classroom, and creative in the form of NIRS (students' research work). Express questionnaires of students were conducted to measure the time spent on independent work, to identify students' claims for research skills, for the types of independent work that are most laborious for respondents, diagnosing time spent on extracurricular work per week. According to the results of the study, graphs were made and diagnostic diagrams were constructed. The conclusion is formulated.El artículo está dedicado al problema de organizar el trabajo independiente de los estudiantes en una institución de educación técnica superior, celebrada en la Universidad Industrial de Tyumen de la sucursal de Nizhnevartovsk. Este documento analiza los requisitos para que los estudiantes dominen las habilidades del trabajo independiente sobre la base del modelo de competencia de un graduado universitario de acuerdo con los requisitos del estándar profesional de educación superior. Se considera la competencia de un especialista exitoso en cualquier industria en desarrollo dinámico. El autor realizó un análisis de los trabajos de científicos, docentes, investigadores, abordando el problema de la motivación y mejorando la eficiencia de la organización de las actividades laborales de los estudiantes. Se revela la tendencia a mantener el interés de los estudiantes en material adicional relacionado con el perfil de la dirección principal de estudio en forma de situaciones problemáticas. Se resaltan y describen en detalle tres formas de organización del trabajo independiente: extracurricular, aula y creativa en forma de NIRS (trabajo de investigación de los estudiantes). Se realizaron cuestionarios expresos a los estudiantes para medir el tiempo empleado en el trabajo independiente, para identificar los reclamos de los estudiantes sobre habilidades de investigación, para los tipos de trabajo independiente que son más laboriosos para los encuestados, diagnosticando el tiempo dedicado al trabajo extracurricular por semana. De acuerdo con los resultados del estudio, se realizaron gráficos y se construyeron diagramas de diagnóstico. La conclusión está formulada.Статья посвящена проблеме организации самостоятельной работы студентов в высшем техническом учебном заведении, проводимой в Тюменском индустриальном университете Нижневартовского филиала. В статье анализируются требования к студентам освоить навыки самостоятельной работы на основе модели компетенций выпускника вуза в соответствии с требованиями профессионального стандарта высшего профессионального образования. Рассматривается компетенция успешного специалиста в любой динамично развивающейся отрасли. Автором проведен анализ работ ученых, преподавателей, исследователей, занимающихся проблемой мотивации и повышения эффективности организации работы, виды деятельности студентов. Выявлена тенденция к устойчивому интересу студентов к дополнительному материалу, связанному с профилем основного направления обучения в виде проблемных ситуаций. Выделены и подробно описаны три формы организации самостоятельной работы: внеклассная, аудиторная и творческая в форме НИРС (научно-исследовательская работа студентов). Экспресс-анкетирование студентов проводилось с целью измерения времени, затраченного на самостоятельную работу, выявления притязаний студентов на исследовательские навыки, на виды самостоятельной работы, наиболее трудоемкие для респондентов, диагностики времени, затраченного на внеурочную работу в неделю. По результатам исследования построены графики и диагностические диаграммы. Сформулирован вывод

    THEORETICAL BASES OF MANAGEMENT OF INNOVATIVE DEVELOPMENT OF THE ENTERPRISE OF MECHANICAL ENGINEERING

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    In the article it is shown that the most limited type of resources during creation of innovative production in domestic engineering industry are financial resources. Economic efficiency of innovative activity directly depends on nature of their formation and distribution. The algorithm of formation and distribution of the budgetary and extrabudgetary financial resources of the enterprise of mechanical engineering in the course of implementation of the innovative program is considered

    THEORETICAL BASES OF MANAGEMENT OF INNOVATIVE DEVELOPMENT OF THE ENTERPRISE OF MECHANICAL ENGINEERING

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    In the article it is shown that the most limited type of resources during creation of innovative production in domestic engineering industry are financial resources. Economic efficiency of innovative activity directly depends on nature of their formation and distribution. The algorithm of formation and distribution of the budgetary and extrabudgetary financial resources of the enterprise of mechanical engineering in the course of implementation of the innovative program is considered

    Obtaining of niobium-containing ferroalloys from the Russian ore raw materials

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    The possibility of processing niobium-containing pyrochlore-apatite concentrates obtained from ores of Beloziminskoye deposit has been studied. A two-stage scheme for selective reduction of phosphorus into a metal phase to obtain low-phosphorus niobium-containing slag was suggested. The reduction of phosphorus and iron was carried out by a carbothermic method using coke and pig iron carbon as the reducing agent. Pig iron chip and magnetite product (80 % Fe2O3) were used as the precipitating agent. In laboratory and semi-industrial conditions the basic possibility of selective separation and sedimentation of phosphorus (to 91 %) and iron from a niobic concentrate without considerable reduction of niobium (up to 1-2 %), according to the two-stage scheme with minimum possible temperature of process during the first period (∼ 1260 C) and hot soak at the increased temperature (∼ 1450 C) during the second period were shown. Obtained low-phosphorus niobium-containing slag after crushing can be used for ferroniobium production according to existing technological schemes. © Published under licence by IOP Publishing Ltd

    Comparative analysis of fodder legumes in Murmansk Province

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    Background. Dairy farming is one of the main segments in the agricultural sector of Murmansk Province. Expanding the range of cultivated legume fodder crops and their cultivars is one of the ways to comprehensively solve the problem of feed in the Kola Peninsula. Introduction of perennial legumes into the feed production practice will reduce the production cost of feeds and improve their quality.Materials and methods. Fodder galega, variable and yellow alfalfa (2005–2009), bird’s-foot trefoil (2006–2007), and sweet clover (2007–2008) were studied at the Polar Experiment Station of VIR. Weather conditions during the years of study differed in temperature and water regimes. Observations and records were made according to VIR’s guidelines. Statistical data processing included the calculation of the main variation parameters and the construction of a generalized linear model of the variance structure.Results. The data are presented on the study of the collection of four perennial fodder legumes in Murmansk Province, Russia, in 2005–2009. Alfalfa surpassed fodder galega, sweet clover and bird’s-foot trefoil in winter hardiness, height and bushiness, showed medium leafiness, and (for the entire study cycle) had low air-dry mass yield. Biennial bicarpic sweet clover stood out for its air-dry mass yield on average per year, had medium height and foliage, but low winter hardiness and bushiness. Bird’sfoot trefoil was significantly inferior to the rest of the studied crops in all agronomic characteristics. Galega had the highest leafiness; in winter hardiness, bushiness and plant height it was slightly inferior to alfalfa, and in yield to white clover. Seeds under the conditions of Murmansk Province can be obtained only from galega accessions.Conclusion. According to a set of agronomic characters, the most promising crop is fodder galega, especially its adapted naturalized accessions selected in 1991–1993

    RESOURCE PROVISION OF THE CORPORATE INNOVATIVE SYSTEM OF THE DOMESTIC HITECH ENTEPRISES

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    The key resources, necessary for the process of transformation of the corporate innovation system of high-tech enterprises in the framework of the fourth industrial revolution «Industry 4.0» have been investigated. The main objective for enterprises is the creation of unique research centers, search laboratories, small innovative groups, and technology associations. A conclusion has been made, that domestic enterprises in modern conditions need to implement the procedure of analysis of existing business processes, including the life cycle of products and supply chains

    Variation of the Epiphytic Lichen Diversity in a Gradient of Atmospheric Pollution: Do Taxonomic, Genetic, and Functional Distances between Species Add any Information? GENERAL BIOLOGY

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    22 Studying the influence of reduced biological diver sity on functioning and stability of ecosystems is one of the priorities of modern ecology If the distances between species are important for biodiversity assessment, then strong perturbations that disturb ecosystem equilibrium should lead to signifi cant differences between the indices of diversity and disparity. In this study, we aimed to test this hypothesis using the epiphytic lichen communities, which are extremely sensitive to atmospheric pollution of the biotic component

    Identification of weeds from the cabbage family (Brassicaceae) found in the agrocenoses of the Russian Federation

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    Members of the Brassicaceae family are of great significance as weeds and invasive plants; they are one of the leading families of the alien fraction in the segetal floras of various regions of Russia. Among the cruciferous weeds growing over Russia, there are many species that are wild relatives to cultivated plants. Some cultivated species grow outside of their cultivation areas as ruderal and segetal plants. Among the cruciferous plants growing in Russia, 28 species out of 19 genera are regulated as harmful organisms in 33 different countries. Most of the species from this list are widespread weeds in Russia.To establish the presence of Brassicaceae species in Russian agrocenoses, we analyzed published sources, herbarium materials stored in the Russian leading herbaria, and materials collected by the authors during field explorations in 2017–2022 in 19 subject entities of the Russian Federation.  Identification of cruciferous plants is often a rather difficult task, so the goal of this work was to develop a convenient identification key that would make in possible to identify weeds of this family found in Russian agrocenoses.  Most of the available keys are designed for fruit-bearing specimens of cruciferous plants. For phytosanitary purposes, it is important to identify plants prior to their fruiting period. Therefore, we additionally used the characters of flowering plants (including their vegetative organs) enabling us to identify cruciferous plants at the flowering stage. Based on such features, a table was made, which included all weedy species of Brassicaceae found in agrocenoses within Russia (83 species in total). On the basis of this table, an identification key was produced for the identification of genera and some species of weedy cruciferous plants. Afterwards, fractional species-specific keys were made for the genera containing species controllable in importing countries

    Analysis of personnel radiation exposure of JSC "Institute of reactor materials" in carrying out reactor tests of experimental devices

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    The analysis of operational radiation exposure of the personnel of JSC "Institute of reactor materials" involved in the transport and technological complex of works with experimental devices. Determined the duration of individual operations is complex work. Assessment of radiation environment at individual stages of the transport and technological complex of operations with the experimental devices. Identified the need to develop recommendations for improvement of the operations in order to reduce the radiation load on the staff.Проведен анализ пооперационных дозовых нагрузок персонала АО «Институт реакторных материалов», участвующего в транспортно-технологическом комплексе работ с экспериментальными устройствами. Определены продолжительности выполнения отдельных операций комплекса работ. Проведена оценка радиационной обстановки на отдельных этапах транспортно-технологического комплекса операций с экспериментальными устройствами. Определена необходимость разработки рекомендаций по совершенствованию проводимых работ в целях снижения радиационной нагрузки на персонал
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