Papers by irina vereitina
Refrigeration Engineering and Technology, 2017
Результатом роботи є обґрунтування доцільності впровадження результатів моделювання рівнянь тепло... more Результатом роботи є обґрунтування доцільності впровадження результатів моделювання рівнянь теплового балансу, складених для активної частини розподільчого трансформатора напруги, на стадії його завершального і уточнюючого етапу проектування. Активна частина знаходиться в середовищі трансформаторного масла, а тепловіддача здійснюється теплопередачею та конвекцією. Математична модель теплового балансу відповідає еквівалентній тепловій схемі заміщення, складеної з двох суміжних вузлів зі стоками тепла - узагальненої обмотки і феромагнітного стрижня та третього суміжного з ними вузла - рухомої речовини з масла, яке додатково контактує з оточуючим середовищем нескінченної теплоємності. Рішення рівнянь отримані для середнього значення температур обмотки, стрижня магнітопроводу і масла в функції часу, що дозволяє встановити очікувані їх значення упродовж роботи трансформатора і, особливо, з нерівномірним графіком його навантаження, а також здійснювати обґрунтований вибір магнітної індукц...
Method of on-site determination of refrigerating machine efficiency
The refrigerating machine is considered as a system of closed pipelines of various diameters, whi... more The refrigerating machine is considered as a system of closed pipelines of various diameters, which enables the excitation of thermodynamic processes in them by moving working body. The method of the on-site determination of the refrigerating machine efficiency based on the two temperature sensors data processing has been elaborated and the device for real time testing of refrigerating machine during one cycle of its operation has been created. Such assessment does not contradict the physical meaning of the concept of efficiency. The developed method and device can be used to indirect determination of the losses in the refrigerating machine as well as the type of refrigerant in the system without the need for refrigerating machine unsealing for extraction and laboratory analysis of the refrigerant, which is relevant during refrigerators routine servicing and vitally important for the environmental concerns solution.
The article examines the possibilities of full implementation of personal approach to foreign lan... more The article examines the possibilities of full implementation of personal approach to foreign languages teaching in universities, based on a strategy that is centered on the creation and subsequent implementation into the training process professionally oriented integrated virtual learning environments for foreign language learning, which allow students to master foreign language skills consciously and provide unlimited opportunities for their use in speech practice.
The present paper focuses on the approach, which corresponds to the virtual learning in the artif... more The present paper focuses on the approach, which corresponds to the virtual learning in the artificial environment, and should be considered as situational and action-based, because the features of its application are determined each time by the specific conditions of training and the virtual educational situation that exists only in this area, at this time, between specific subjects and objects of education. The objective of the study is to determine possible ways of university learning process optimization. This paper is a preliminary attempt to show that integration of educational game elements to virtual learning environments will help students to reach educational goals in the process of study and familiarize with the norms and values of society.
Cherkasy University Bulletin: Pedagogical Sciences
Introduction. Nowadays the system of future engineers training is entering the new stage of its d... more Introduction. Nowadays the system of future engineers training is entering the new stage of its development and new horizons are opening-connected with formation of teaching pluralism, developing of new teaching ways and methods, which lead to the appearance of new approaches to training process due to the necessity of novel technologies implementation that should support students motivation for lifelong learning and stimulate their creativity. E-learning, mlearning, interactive e-books, virtual learning realities-such neologisms integrate to all spheres of education constantly, and engineering training is not an exception. Purpose. The aim of the paper is to specify the main methodological and psychological principles of virtual educational environment creation and implementation. Results. Essential features of the "virtual learning environment" concept are described and fundamental properties of virtual learning environment which is used in the educational process are given. Originality. The major pro and contra arguments of these novelties utilization for the educational purposes in the process of training are observed in the paper on the example of virtual gamificated learning environment creation. Conclusion. Pedagogic system which corresponds to the virtual learning in the artificial environment, should be considered as situational, because the features of its application are determined each time by the specific conditions of training and that virtual educational situation that exists only in this area, at this time, between specific subjects and objects of education. The necessity of the special didactics development for virtual learning environments is obvious. It is necessary to create and implement virtual learning environments for every
Application of Thermal Sensors for Determination of Mass Flow Rate and Velocity of Flow in Pipes of Hermetic Systems
Key Engineering Materials
The paper relates to the field of measuring technologies and deals with the enhancement of thermo... more The paper relates to the field of measuring technologies and deals with the enhancement of thermoconvective method when it is applied for the experimental determination of such hydrodynamics indicators as mass flow rate and velocity of flow by their indirect parameters - capacity of the heater and the temperatures obtained from two thermal sensors, provided that they are located on the hermetic piping system surface. The issue of determination of correction factor on heterogeneity of liquid temperature distribution in the pipe cross section depending on pipe diameter and fluid movement velocity was clarified. According to the results of numerical calculations, the dependencies of temperature gradient on the pipe surface and the correction factor on the heterogeneity of the temperature distribution along the pipe cross-section under the heater in the function of the velocity of flow in pipes of different diameters are plotted. These dependencies specify the thermal method of studying...
The present paper focuses on the approach, which corresponds to the virtual learning in the artif... more The present paper focuses on the approach, which corresponds to the virtual learning in the artificial environment, and
should be considered as situational and action-based, because the features of its application are determined each time by
the specific conditions of training and the virtual educational situation that exists only in this area, at this time, between
specific subjects and objects of education. The objective of the study is to determine possible ways of university learning
process optimization. This paper is a preliminary attempt to show that integration of educational game elements to virtual
learning environments will help students to reach educational goals in the process of study and familiarize with the norms
and values of society.
У статті розглянуто дидактичні питання розробки інтерактивних навчальних середовищ до вивчення ди... more У статті розглянуто дидактичні питання розробки інтерактивних навчальних середовищ до вивчення дисципліни «Іноземна мова (за професійним спрямуванням)»у віртуальній чи доповненій реальності. Доведено, що таке середовище як засіб організації англомовної професійно зорієнтованої навчальної діяльності студентів носить активний характер, включає мультимедійні засоби, є фахово та комунікативно спрямованим курсом для вивчення іноземної мови та відповідає комбінованому типу комп'ютерних програм. Розглянуто питання комунікативної іншомовленнєвої компетенції майбутніх користувачів іноземної мови як мети навчання, що може бути реалізована за умови оволодіння такими видами мовленнєвої діяльності, як рецепція (сприймання), продукція, інтеракція (взаємодія) та медіація (посередництво). Наведено систему тренувальних вправ з урахуванням взаємодії комунікативних видів діяльності та розглянуто інструкції до їх виконання в умовах штучного (віртуального або доповненої реальності) інтерактивного освітнього середовища. Визначено основні інструменти, які повинні бути імплементовані у освітнє середовище до вивчення іноземної мови у закладі вищої освіти. В результаті проведеного експерименту виявлено, що із дев'яти вправ, направлених на розвиток іншомовленнєвих комунікативних навичок, п'ять із них повинні містити завдання до аудіювання, сім – до говоріння (монологічного й діалогічного) п'ять – до виконання письмових завдань, три – до читання, дві – вправи на медіацію (посередницькі). Така кількість комунікативних вправ у поєднанні з елементами комп'ютерних ігор, вбудованих у освітнє середовище, та можливостями для студентів самостійно конструювати деякі освітні елементи (відео, блоги, веб-сторінки, чати) забезпечують студентоцентричної моделі навчального процесу та необхідну його мотивацію.
The possible ways of learning process optimization in higher school by means of up-to-date learni... more The possible ways of learning process optimization in higher school by means of up-to-date learning tools which can be implemented into the virtual educational environment are analyzed in the paper. The brief review of the traditional and innovative learning tools is given. It is determined that utilization of Internet-available open learning tools contributes to the formation of professional competence as well as to the improvement of learners/future specialists professional skills. The issue of forthcoming educational technologies advent is considered.
The article examines the possibilities of full implementation of personal approach to foreign lan... more The article examines the possibilities of full implementation of personal approach to foreign languages teaching in universities, based on a strategy that is centered on the creation and subsequent implementation into the training process professionally oriented integrated virtual learning environments for foreign language learning, which allow students to master foreign language skills consciously and provide unlimited opportunities for their use in speech practice.
Vereitina I. A. The Method of Professional Knowledge Estimation Results Reliability Analysis The ... more Vereitina I. A. The Method of Professional Knowledge Estimation Results Reliability Analysis The methodology determining the validity of the results obtained during the forming stage of the experiment to assess the professional knowledge of the respondents, and sample testing of hypotheses involved are given. The methodology will be useful for postgraduate students and young scientists. The methodology determining the validity of the results obtained during the forming stage of the experiment to assess the professional knowledge of the respondents, and sample testing of hypotheses involved are given. The methodology will be useful for postgraduate students and young scientists Every research work requires generalization of results collected after research process. Scientists studying and analyzing represented sample data set can make conclusions about research or students knowledge level under the implementation of new methods of teaching. That is the reason why ordering analysis results realization of student's professional knowledge estimation analysis results of the evaluation with the help of probability sample is very important. The purpose of the assessment results analysis is obtaining a small amount of key (the most informative) parameters that give an objective and accurate picture of learning groups – professional knowledge and skills, learned during the course. Selective observation is the most common of all types not overall observation. During the sample observation study not all units of the object are studied, but only some part of these selected units. However, observation is organized in such a way that the part of the
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Papers by irina vereitina
should be considered as situational and action-based, because the features of its application are determined each time by
the specific conditions of training and the virtual educational situation that exists only in this area, at this time, between
specific subjects and objects of education. The objective of the study is to determine possible ways of university learning
process optimization. This paper is a preliminary attempt to show that integration of educational game elements to virtual
learning environments will help students to reach educational goals in the process of study and familiarize with the norms
and values of society.