Факультет цифрових технологій та автоматизації виробництва
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Документ Web-Technologies and Multimedia Systems in the training of professionals in the education system(Rezekne Academy of Technologies, 2021) Korol, A.; Blashkova, O. M.; Kravchenko, V.; Khilya, A.; Блашкова, О. М.Contemporary technologies of training specialists in different professions envisage mastering the skills of a 'quality user' of computer technologies. At the same time, the issues of training primary school teachers, specialists in inclusive and remedial education to use more complex multimedia systems with the need to understand programming processes have often been excluded from basic courses as an 'unnecessary' component. But considering the current trends towards distance education, the “rejuvenation” of 'advanced users' and the need to maintain a educator's reputation, the trend towards introducing such systemic courses in the training process for specialists in primary, inclusive and correctional education has become a kind of concept for professional competence. It was based on the needs of today's teachers to transfer knowledge through multimedia systems (creating interactive databases, web pages, blogs or websites, preparing and conducting WebQuests, using computer games from producers or their own development through the platforms Wordwall, Etreniki, Flippity and Scratch programmes, etc.) that became the deciding factor for introducing specific topics on their use into training courses and expanding basic programmes of computer competency. Also, the training process began to include interaction with the training audience through social media. This multi-component work to develop a «modern/advanced» teacher provides the basis not only for improving the quality of the educational process, but also for its individualization according to the needs of each participant and his/her special educational needs, allowing to change the complexity of tasks, the saturation of tasks with audiovisual information.Документ Development of a mathematical model to monitoring the velocity of subsidence of charge material column in the blast furnace based on the parameters of gas pressure in the furnace tract(ПП "ТЕХНОЛОГІЧНИЙ ЦЕНТР"; Український державний університет залізничного транспорту, 2022) Kravchenko, V.; Vorotnikova, Z.; Simkin, O. I. ; Koyfman, O. O.; Кравченко, В. П. ; Воротнікова, З. Є.; Сімкін, О. І.; Койфман, О. О.A problem of estimating the velocity of subsidence of a column of charge materials using non-contact methods was considered. This is important because the level of furnace charge materials and the velocity of their subsidence are main indicators of melting intensity determining the furnace productivity.The design of a blast furnace and its blast path were described and existing methods and means of controlling the velocity of charge materials in the blast furnace were analyzed. A mathematical model was presented for estimating the velocity of subsidence of charge materials in a blast furnace based on the magnitude and fluctuations of gas pressure along the furnace shaft height. The model is based on the fact that the furnace gases rise up in the furnace shaft through elementary channels in the column of charge materials consisting of a combination of capacitances and resistances. Volume of capacities and values of resistance of elementary channels are constantly changing. This changes hydraulic resistance to gas movement in the blast furnace. The system of differential equations describes the dependence of the amplitude of pressure fluctuations on the amplitude of change in coefficients of resistance and frequency of pressure fluctuations on the frequency of change in coefficients of resistance. The experimental data on velocity of the column of charge materials and fluctuations in the pressure differential in the furnace were processed and their significant relationship was shown to confirm the previous theoretical study results. To assess the model adequacy, the simulation method was used. The results of the simulation model work were confirmed by experimental data.The developed mathematical model can be introduced into production. This will make it more economical and safer through better and more predictable control and improved flexibility in operation under different production conditions