THE PROBLEM OF COMMUNICATIVE COMPETENCE OF A TEACHER

The article presents the observations of the author about the role of communicative competence of a teacher; communicative competence described as the core of professionalism of teachers. Characterized Toolkit, a set of communicative skills of the teacher.В статье представлены наблюдения автора о роли коммуникативной компетентности учителя; коммуникативная компетентность охарактеризована как ядро профессионализма учителя. Охарактеризованы инструментарий, набор коммуникативных умений учителя

Определение расходных характеристик в технологических процессах с контролируемым давлением

Assessment of the environmental and economic performance of a safety valve requires information about the flow of the substance through the valve when it is actuated. The goal of this paper was to determine the flow rate of the discharged substance and the mass flow rate of the substance entering the safety valve when it is actuated. Proposed a mathematical model to describe the processes occurring in the valve. The model includes a system of differential equations describing the physical laws of conservation in the internal volume of the valve and differential equations, which link the value of gas flow through the valve with the pressure and the amount of movement of the shut-off disk. Used a modified method by S.K. Godunov to solve gasdynamic equations. Established that the determination of the flow and power characteristics of the valve requires the preliminary construction of a mathematical model of the safety valve operation. Based on this, proposed a method for determining the flow rate of the discharged substance and the mass rate of the substance entering the safety valve when it is actuated. Obtained the flow characteristics of the valves under review and the dynamics of movement of the shutoff disc of the valve, as well as the dependence of the pressure change on the opening time of the valve. Comparison of the calculated values with available experimental data gives good agreement of results (no more than 5.6 % for a gas flow rate, under 10 % for the movement of the valve and change the arrival of gas in time using the standard deviation function of the flow characteristics of 0.6 %), confirms the correctness of the defined mathematical model, used numerical schemes and algorithms, as well as the proposed method and recoverability of the arrival of gas in a pressure–time curve

Определение расходных характеристик в технологических процессах с контролируемым давлением

Assessment of the environmental and economic performance of a safety valve requires information about the flow of the substance through the valve when it is actuated. The goal of this paper was to determine the flow rate of the discharged substance and the mass flow rate of the substance entering the safety valve when it is actuated.Proposed a mathematical model to describe the processes occurring in the valve. The model includes a system of differential equations describing the physical laws of conservation in the internal volume of the valve and differential equations, which link the value of gas flow through the valve with the pressure and the amount of movement of the shut-off disk. Used a modified method by S.K. Godunov to solve gasdynamic equations.Established that the determination of the flow and power characteristics of the valve requires the preliminary construction of a mathematical model of the safety valve operation. Based on this, proposed a method for determining the flow rate of the discharged substance and the mass rate of the substance entering the safety valve when it is actuated.Obtained the flow characteristics of the valves under review and the dynamics of movement of the shutoff disc of the valve, as well as the dependence of the pressure change on the opening time of the valve. Comparison of the calculated values with available experimental data gives good agreement of results (no more than 5.6 % for a gas flow rate, under 10 % for the movement of the valve and change the arrival of gas in time using the standard deviation function of the flow characteristics of 0.6 %), confirms the correctness of the defined mathematical model, used numerical schemes and algorithms, as well as the proposed method and recoverability of the arrival of gas in a pressure–time curve.Оценка экологичности и экономичности работы предохранительного клапана требует информации о расходе вещества через клапан при его срабатывании. Целью данной работы являлось определение величины расхода сбрасываемого вещества и массовой скорости поступления вещества в предохранительный клапан при его срабатывании.Для описания процессов, протекающих в клапане, предложена математическая модель, включающая систему дифференциальных уравнений, описывающих физические законы сохранения во внутреннем объёме клапана и дифференциальные уравнения, связывающие величину расхода газа через клапан с давлением и величиной перемещения запорного диска. Для решения газодинамических уравнений применялся модифицированный метод С.К. Годунова.Установлено, что определение расходной и силовой характеристик клапана требует предварительного построения математической модели функционирования предохранительного клапана. На основании чего предложена методика определения величины расхода сбрасываемого вещества и массовой скорости поступления вещества в предохранительный клапан при его срабатывании.Получены расходные характеристики рассматриваемых клапанов и динамика перемещения запорного диска клапана, а также зависимость изменения давления от времени открытия клапана. Сопоставление расчётных значений с имеющимися экспериментальными данными даёт хорошее совпадение (не более 5,6 % для расхода газа, менее 10 % для перемещения клапана и изменения прихода газа во времени при среднеквадратичных отклонениях функции расходных характеристик 0,6 %) результатов, подтверждает корректность сформулированной математической модели, используемых численных схем и алгоритмов, предложенной методики и возможность восстановления прихода газа по кривой давление – время

Mathematical Model of the Shell with the Infill for Retaining Structures

A description of finite element model and analysis of a shell with an infill is performed. A large diameter thin cylindrical shell structure with the edge leaning against compressible foundation soil is analyzed. Different materials are considered individually for the models of each structure shell and infill component (metal or reinforced concrete shell, and granular or elastic infill in a shell and foundation soil loaded by the structure). Contact conditions between 1) the infill and the shell’s inner surface and 2) between the foundation material and the shell edge are analyzed. An example of calculating strain conditions in the shell according to the proposed finite element model and tasks of its development process and specification are provided in this paper

The phenomenon of multiculturalism in the regional strategizing

The purpose of the article is to justify the possibility of the modernizing development of the region based on the rational use of the potential of a mixed economy of its territories. In contrast to the existing ideas about multiculturalism as a problem, demonstrating the structural imbalances in the economy of the region, the authors view it as a phenomenon that allows the region to provide a competitive advantage. The methodological base of this study is the convergence of the system, synergistic, institutional and endogenous approaches, and sharing a number of theories - growth poles, territorial industrial clusters, balanced development. The article shows the role of the institutional environment in realizing the potential of a diversified economy in the region. It formulates conceptual positions of the mechanism of regional strategizing aimed at the development of relations between territories with the different types of lifestyles. The basis of the interactions is the consensus of economic interests, compromise of competitive aspirations and market positions of the entities as equal partners. It is concluded that there is the need to change the existing system of regional strategizing in terms of strengthening its focus on the formation of the institutional channels for the communication of corporate, small-scale and farm structures. The recommendations on the potential of the mixed economy of the regions were used in the development of the Strategy of investment development for the Rostov region until 2020

HEREDITARY INTRAVENTRICULAR CONDUCTION DISORDERS IN THE FAMILY FROM KRASNOYARSK

Pedigree of the family from Krasnoyarsk city with hereditary disorders of intracardiac conduction was studied. The diagnosis of each family member was verified by electrocardiography (ECG), echocardiography , bicycle ergometry , ECG Holter monitoring. The family 10-year follow-up showed familial aggregation of intracardiac conduction disorders in grandson, niece, son of the proband niece, ie, in the III-degree relatives. Family history of III-degree relatives with intracardiac conduction disorders and discordant pathology is identified

Impact of Industry 4.0 on the economy and production

The difficulties and problems faced by economic entities, countries and regions, in general, on the way to implementing the achievements and developments of Industry 4.0 have been designated in the article. Special attention has been paid to economic and production aspects, as well as changes in the relevant systems in the context of radical technological transformations. In particular, it has been established that markets are becoming oligopolistic, the role and importance of medium and small businesses is significantly increasing, the problems of social inequality and tension in connection with growing unemployment and the need for highly qualified personnel are becoming more acute. In addition, the features of competition for technologies, investments, sales markets, territories of productive forces location have been highlighted. Attention has also been focused on the main “revolutionary” trends in industrial development associated with the launch of the innovation and technological cycle initiated by “Industry 4.0”. Specific actions and measures have been identified to implement these trends into reality

Effects of doping and epitaxy on optical behavior of NaNbO3 films

Cube-on-cube epitaxy of perovskite sub-cell of Pr-doped and undoped NaNbO3 is obtained in 130-nm-thick films on top of (La0.18Sr0.82)(Al0.59Ta0.41)O3 (001) substrates. Experimental studies show that the edge of optical absorption red-shifts and some interband transitions change in the films compared to crystals. Bright red luminescence is achieved at room-temperature under ultraviolet excitation in the Pr-doped film. An interband mechanism of luminescence excitation is detected in the film, which is in contrast to the intervalence charge transfer mechanism in the crystal. The results are discussed in terms of epitaxially induced changes of crystal symmetry and ferroelectric polarization in the films. It is suggested that the band structure and interband transitions in NaNbO3and the transition probabilities in the Pr ions can be significantly modified by these changes.Peer reviewe