Model of mass transfer processes in the cascade of centrifugal extractors

The paper describes a mathematical model of mass transfer processes in a cascade of reverse-flow centrifugal extractors. Model of operation of each extractor is given as tightly coupled system of mixing and separating chambers. All model units are represented by systems of differential equations. The article presents the results of testing of the developed model, which confirmed the validity of the assumptions made in the model. The authors assessed the impact of the overflow of dense phase level on the hydrostatic position of phase interface level in the extractor. The research showed that a change in the volume of dense and light phases occurs in each apparatus of a cascade even in the steady mode. Operation of the cascade consisting of 12 series-connected centrifugal extractors was simulated in order to verify the model. Computer simulation results confirm the adequacy of the developed model

An algorithm for the integration of information and communication technologies in teaching languages for special purposes (the example of Russian as a foreign language)

This article is dedicated to the integration of information and communication technologies (ICT) in the process of teaching Russian as a foreign language for special purposes at an advanced stage of studying for students of non-linguistic disciplines. Based on many years of teaching experience in a virtual environment, the authors show forms of successful organization of the educational process provide tactics and a strategy for studying using presentations, video lectures and webinars, as well as teaching aids based on the electronic platform MOODLE. The developed algorithm of a mixed model of teaching enables good use of the potential of information and communication tools in the practice of teaching the Russian language for special purposes (economics and finance specializations)

ИНТЕГРАЦИЯ ИНФОРМАЦИОННОКОММУНИКАТИВНЫХ СРЕДСТВ В ПРОЦЕСС ОБУЧЕНИЯ ЯЗЫКУ СПЕЦИАЛЬНОСТИ ИНОСТРАННЫХ СТУДЕНТОВ В ЭКОНОМИЧЕСКОМ УНИВЕРСИТЕТЕ

The paper is untended to draw attention to information communication technologiesin teaching Russian as a foreign language for special purposes at level B 2. In thisregard the educational process of teaching Russian as a foreign language is examinedfor promoting quality improvement in the process of ELT.Technology-enhances language learning(TELL) is described through computer-assisted language learning(CALL)-presentations, webinars, videolectures. The authors share their experience obtained during teaching Russian as a foreign language forspecial purposes at the Department of Linguistics and cross-cultural communicationat MESI University.Данная статья посвящена интеграции информационно-коммуникационных технологий в процесс преподавания языка специальности на занятиях по русскомуязыкукакиностранномунапродвинутомэтапеобучениявуниверситетах экономического профиля. Описываются информационно-коммуникационные инструменты, используемые на продвинутом этапе при смешанной модели обучения: презентации, вебинары, видеолекции. Авторы делятся опытом использования информационно-коммуникационных инструментов в практике преподаваниянапримереработыкафедрылингвистикиимежкультурнойкоммуникации, предлагают свою тактику и стратегию обучения

Ученическое самоуправление в управлении школой: к проблеме обоснования

According to the law, a modern school should have state-public administration, which implies expanding the range of subjects of administration of this organization. Student government, based on realization of freedom to manage resources to meet the realized needs, has the potential to become an active member of school management. Student government is mandatory, implying engaging students into effective management activities. The studies show that at the current state, student government is mostly a pedagogical system, giving students the status of objects of influence. The school faces the challenge of changing the structure of management and teaching activities in respect to the largest in the number of members group of the organization – students. The efforts of school management and teachers should focus on gradual inclusion of students in management of school, taking into account their realized needsУправлению современной школой нормативно предписан характер государственно- общественного, что подразумевает обязательность расширения круга субъектов управления организацией. Ученическое самоуправление, основанное на понимании свободы распоряжения ресурсами для удовлетворения осознанными потребностями, имеет потенциал стать деятельным элементом системы управления школой. Ученическое самоуправление имеет обязательный характер, подразумевая включение учащихся с изменением ступени обучения в эффективную управленческую деятельность. Исследования показывают, что современное состояние ученического самоуправления носит в подавляющем большинстве характер педагогической системы, придавая учащимся статус объекта воздействия. Школа стоит перед проблемой изменения структуры управления и педагогической деятельности в отношении самой большой по численности группы участников организации – учащихся. Усилия менеджмента школы и педагогов должны быть сосредоточены на поэтапном включении учащихся в процесс управления школой с учетом осознанных потребностей

Ученическое самоуправление в управлении школой: к проблеме обоснования

According to the law, a modern school should have state-public administration, which implies expanding the range of subjects of administration of this organization. Student government, based on realization of freedom to manage resources to meet the realized needs, has the potential to become an active member of school management. Student government is mandatory, implying engaging students into effective management activities. The studies show that at the current state, student government is mostly a pedagogical system, giving students the status of objects of influence. The school faces the challenge of changing the structure of management and teaching activities in respect to the largest in the number of members group of the organization – students. The efforts of school management and teachers should focus on gradual inclusion of students in management of school, taking into account their realized needsУправлению современной школой нормативно предписан характер государственно- общественного, что подразумевает обязательность расширения круга субъектов управления организацией. Ученическое самоуправление, основанное на понимании свободы распоряжения ресурсами для удовлетворения осознанными потребностями, имеет потенциал стать деятельным элементом системы управления школой. Ученическое самоуправление имеет обязательный характер, подразумевая включение учащихся с изменением ступени обучения в эффективную управленческую деятельность. Исследования показывают, что современное состояние ученического самоуправления носит в подавляющем большинстве характер педагогической системы, придавая учащимся статус объекта воздействия. Школа стоит перед проблемой изменения структуры управления и педагогической деятельности в отношении самой большой по численности группы участников организации – учащихся. Усилия менеджмента школы и педагогов должны быть сосредоточены на поэтапном включении учащихся в процесс управления школой с учетом осознанных потребностей

Modelling of the monitoring and control system of extraction units with nuclear-safe tanks via use of capillary impulse lines with differential low-pressure gages

This paper focuses on the computer-aided simulation of extraction process in the cascade of reverse-flow centrifugal extractors with nuclear-safe tanks. The major objective of this work is to design an advanced control system for enhancement of extracting technology efficiency. The basis of the monitoring and control system is that the systems should be based on non-destructive measuring techniques. Two models of monitoring systems are being considered: the measuring system in nuclear-safe tanks where capillary impulse lines are used for measurement of differential pressure at various points in the process media, and model of spectrometric system. The density measurement in both presented systems is indirect. The experimental studying of monitoring spectrometric system have shown that the accuracy of experimental data less than 1 % in steady-state condition and more than 3 % in a dynamic one. The accuracy degradation is due to air bubbles presents in the solvent stream