Kuban State Technological University
Author list of organization
List of articles written by the authors of the organization
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01.00.00 Physical-mathematical sciences
DescriptionThis article describes a mathematical model of transport of salt ions in a cell with a rotating disk cation exchange membrane at transcendent current regimes, taking into account electroconvection. Based on this model, we had a theoretically study of the process of transfer of salt ions and the dependence of the thickness of the diffusion layer from the fall of potential. This article is a continuation of [8] and [9], it conducted a numerical analysis of boundary value problem for a system of equations Nernst-Planck-Poisson and Navier-Stokes equations, modeling the transport of salt ions in a cylindrical cell with a rotating disc cation exchange membrane based on electroconvection. It is shown there is an electroconvection vortex in the center of the membrane disc. The solution flows around this vortex and forms a stagnation zone in front of it. With the increase in the size of the fall of potential, the electroconvective vortex decreases and at some value, the electroconvective vortex disappears. The study was conducted in the 1000 s when the angular velocity of 30 turns in a minute and change of the potential difference of 0.2V to 1.4V with a step 0.1. As a result, in this study it is shown that the thickness of the diffusion layer is practically linearly dependent on the fall of potential. The linear dependence of the thickness of diffusion layer from the fall of potential, in the first approximation, is disturbed by a slight deflection curve, the causes of which are needed to be found by means of extra experiments
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PARAMETERS OF RESEARCH ACTIVITY OF STUDENTS AS CRITERIA FOR DIAGNOSTICS OF EDUCATIONAL ENVIRONMENT
DescriptionThe article reflects the relationship between the parameters of research activities of students and the characteristics of the educational environment in higher education. It is known that the research activity of students is an integral part of the educational process, therefore, the parameters of research activity can and should be indicator variables reflecting certain aspects of the educational environment. According to modern views, all types of research activities of students (educational, research, scientific and practical and research) is the most important mechanism for the development of their research competence. In addition, the parameters of research activities of students - the reflection of the relationship of scientific and educational activities in higher education, and this - one of the most important factors of competitiveness of the educational environment. The authors substantiate that the parameters reflecting the research activity of students characterize, first of all, such aspects of the educational environment as its intensity, social activity, dominance, coherence, mobility, stability, reliability and efficiency. This is due to the fact that the research activity of students is a transdisciplinary process that depends on the same factors as the educational process as a whole and is characterized by the same didactic goals (tasks) as the educational process as a whole. In identifying the relationship between the parameters of research activities of students and the characteristics of the educational environment, the authors also took into account the relevance of such a task as ensuring continuity between levels of continuing education. The theoretical significance of the results of this study is that they can be the basis for further scientific understanding of the problems of the quality of education and the effectiveness of educational environments, the practical significance is that they can be applied in the systems of socio-pedagogical and psycho-pedagogical monitoring and the effectiveness of the educational environment, as well as monitoring the student's personal and professional development). Methodological bases of research: system, sociological, competence, probability-statistical and qualimetric approaches (leading methodological basis - competence approach). Research methods: modeling; methods of graph theory, sets and relations; systemiccognitive analysis; methods of qualimetry (theory of latent variables); methods of mathematical statistics (first of all - the method of rocky scree); methods of the theory of limits
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Description
In the article we have reflected a relationship between the parameters of the research activities of scientific and pedagogical collectives and the characteristics of the educational environment in higher education. It is known that the research activities of scientific and pedagogical workers and teams - an integral part functioning of the higher education institution (and improving its efficiency is one of the most important problems). The authors proved that parameters reflecting research activity of scientific and pedagogical higher education of institution employees characterize the aspects of the educational environment as its latitude, intensity, social activity, coherence, mobility, stability, reliability and efficiency. It is caused by the fact that the research activities of scientific and pedagogical workers - a multifaceted social and cultural phenomenon. The idea of the diagnosis of the educational environment of a higher educational institution and its structural units, based on an assessment of scientometric indicators (criteria for research productivity), can be completely suitable for international and Russian requirements: the well-known Shanghai procedure shifts the emphasis on the evaluation of various aspects of the research activities in higher education; serious attention to assessing the research activity focuses and Russian technique diagnostic efficiency of higher education institutions. This is logical and soundly: if the educational environment of a higher educational institution is not a center of science, then it cannot have effectively and competitive graduates, because Research and pedagogical staff - the governing factor in the educational process. Based on previously developed models of research activities in scientific and pedagogical collectives, as well as on generally accepted models of educational environments, the authors have proposed a method for the diagnosis of the educational environment, based on an assessment of scientometric indicators - parameters reflecting the impact of the research activities of scientific and pedagogical workers. Obtained results may be the theoretical basis for further scientific understanding of the problem of increasing the productivity of research activities in higher education, as well as problems - increasing the competitiveness of educational environments. The practical significance of the results of this study - the possibility of their use in the system of socio-pedagogical monitoring - monitoring of productivity the research activities and effectiveness of educational environments. Methods of investigation: modeling, methods of the theory of sets and relations, methods of probability theory and mathematical statistics, methods of the theory of limits, methods of linear algebra and analytic geometry, multi-parameter analysis of the systems and methods of quality control (latent variables theory). Methodological bases of research: a systematic, metasystem, qualimetric, sociological and probabilistic and statistical approaches
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INTENSITY PARAMETERS OF ERBIUM IONS IN LEAD TUNGSTATE CRYSTALS
01.00.00 Physical-mathematical sciences
DescriptionLead tungstate monocrystals doped by erbium were investigated in this article. Judd-Ofelt intensity parameters, radioactive lifetimes and emission cross-sections were calculated
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INTENSITY PARAMETERS OF NEODYMIUM IONS IN STRONTIUM TUNGSTATE CRYSTAL
01.00.00 Physical-mathematical sciences
DescriptionIntensity parameters of neodymium ions in doped SrWO4 monocrystals, grown by modified Czochralski method, are calculated. Changes in the values of these parameters when replacing the tungsten atoms W6+ atoms of molybdenum Мo6+ in the matrices SrMeO4 with the scheelite structure due to less screening of the nucleus Мo6+ compared with W6+ are shown
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MONUMENTS OF THE FEBRUARY AND OCTOBER REVOLUTION IN THE TERRITORY OF RUSSIA
DescriptionThe article is devoted to the study of the monuments of revolutions of 1917 in Russia. It is emphasized that from the historical point of view, almost all monuments represent the embodiment of the losses and sufferings of humankind in various armed conflicts. This is especially true for the revolutions of 1917, which changed the entire modern history of the country, and even after 100 years cause a special interest both in the international scientific community and among ordinary people. This study specifies that after the final establishment and approval of the Soviet government, the new government realized that it was needed to create a certain basis, namely, its political symbolism as a foundation for the formation of image of the new government. The most important component of this process was the desire of the authorities to the formation of the ideas of the Soviet people about themselves and their place in the world, and, as a consequence, the folding of the foundations of Soviet patriotism, because the new generation who had no idea about the Russian Empire, began its life in the country, which had an ideology, but just started to develop the system of socialist values. The attention is paid to the fact that the monuments are one of the important elements of the historical and cultural heritage, which reflected the past experience of mankind, broadcast through architectural and sculptural symbols to the present, which contributes not only to the cultural enrichment of mankind, but also used by people to influence worldviews contemporaries. The article says that modern youth need to know the history of their country, not to forget about the numerous victims of various wars, to preserve peace and appreciate life
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PURIFICATION OF OILY WASTEWATER BY USING NATURAL AND SYNTHETIC SORBENTS
DescriptionThis article reviews the existing natural and artificial sorbents used for water purification from petroleum and petroleum products. A popular, widely used sorbents and new technologies, such as Versoil sorbent, sorbent based on the waste of olive oil production, sorbent-based waste felting production are considered. There are advantages of the use of a sorbent depends on its cost and the requirements to the quality of purification. There are advantages of the use of a sorbent depends on its cost and the requirements to the quality of purification. Main sorption properties of the most popular at the moment organic and inorganic sorbents are presented in tabular form, which allows them to conduct a comparative analysis. It was concluded, that the most promising sorbents were produced from plant waste
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Description
There are two different complete sets of replaceable gears bracket of metal-cutting machine tools in the article. One is delivered together with the machine tool 5К32, another is received on the basis of the work of the author. The samples made of these complete sets are checked with a plate-measuring machine. The diagrams of measurements and comparative tables are presented in the article as well
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Description
There are two different complete sets of replaceable gears bracket of metal-cutting machine tools in the article. One is delivered together with the 5К32 machine tool, another is received on the basis of work of the author. The samples made of these complete sets, are checked by the plate-measuring machine. Diagram of measurements and comparative tables are presented
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Description
The article discusses the ways of working of an intelligent system based on hybridization of several technologies of intelligent computations. A model of the hybrid system is represented. The effectiveness of the proposed approach has been proved