<B>Д 64.051.09 (Технічні науки) </B>
Постійне посилання зібрання
01.05.02 - математичне моделювання та обчислювальні методи;
05.13.06 - інформаційні технології
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Документ Автореферат дисертації на здобуття наукового ступеня кандидата технічних наук "Математичнi моделi процесiв модулярної нестiйкостi хвиль в середовищах з кубiчною нелiнiйнiстю"(2010-10-27T11:22:16Z) Бєлкін, Є.В.Дисертація присвячена побудові математичних моделей процесів розвитку модуляційної нестійкості інтенсивних квазімонохроматичних хвиль у нелінійних середовищах, які реалізуються при розповсюдженні магнітних хвиль у антиферомагнетиках, електромагнітних хвиль у плазмових хвилеводах та гравітаційних хвиль на глибокій водіДокумент Моделі та методи розміщення двоетапного виробництва з неперервно розподіленим ресурсом(Харків : Харківський національний університет імені В.Н. Каразіна, 2019) Станіна, Ольга Дмитрівна; Stanina, Olha D.The thesis deals with the improvement of the processes to locate two-stage produc-tion by means of constructing mathematical models, methods, and algorithms for solutions which takes into consideration continuity of resources allocation and availability of several stages of production. Mathematical models of continuous partitioning sets problem with additional con-nections has been proposed; the models describe two-stage processes to allocate material flows in terms of transportation and production systems which structural components are the enterprises that collection the resources being continuously allocated within certain ter-ritory as well as the enterprises which either consume or process those resources. Condi-tions to solve the proposed models have been studied; necessary and sufficient conditions of the optimality to solve the models have been formulated. Methods and iteration algorithms to solve the problems involving basic principles of infinite-dimensional optimization and duality theory have been elaborated. Software product to solve two-stage problems of optimal location of enterprises with continuously allocated resources has been developed. The obtained results make it possible to solve a range of practical problems con-nected with strategic planning in the sphere of productive, social, and economic activities.Документ Інформаційна технологія підтримки прийняття кадрових рішень для закладів вищої освіти України(Харків : Харківський національний університет імені В.Н. Каразіна, 2019) Новикова, Олена Олександрівна; Novykova, Olena O.Olena O. Novykova. Information technology support for the adoption of personnel decisions for higher educational institutions of Ukraine. − Qualification scientific paper, manuscript. Thesis for a Candidate Degree of Technical Sciences: Specialty 05.13.06 – information technologies. – National Academy of the National Guard of Ukraine. – V.N. Karazin Kharkiv National University. – Kharkiv, 2019. The dissertation is devoted to the development of information technology supporting the adoption of personnel decisions for higher educational institutions of Ukraine as a set of models and methods for automating the selection process for the preparation of teachers and their support in the process of formation and professional activities. As a result of the analysis of the state of the higher education management system in Ukraine, it was concluded that it does not fully meet the current requirements, especially at the level of individual universities (where the management is carried out in «manual» mode). In them, basically, an authoritarian, rigidly regulated organization of the learning process is realized, when the relationship between the teacher and subject of learning is based on the principles of domination and subordination. Such a system inhibits the implementation of the so-called pedagogy of cooperation, in which the subject of learning is also recognized as the subject of the learning process, and the implementation of new learning concepts that implement continuity, informatization and individualization as the main promising directions of the development of the education system in Ukraine. In addition, modern teaching concepts increase the requirements for the main subject of the teaching process – the teacher, who need new approaches to the professional selection of candidates.Документ Математичні моделі та методи обчислення процесів збудження та стійкості інтенсивних хвиль в приладах плазмової електроніки(Харків : Харківський національний університет імені В.Н. Каразіна, 2019) Приймак, Олексій Вікторович; Pryimak, Oleksii V.The research focuses on development of mathematical models and computational methods of excitation processes and modulation instabilities of the intense wave field in plasma electronics devices. Unlike vacuum systems, the use of plasma electronics devices makes it possible to change the frequency of radiation in a wide range, to create more compact devices, to accelerate beams to high energies at small distances, to transport bunches of high density and high current. However, the creation of plasma electronics devices is associated with significant problems, for example, with the difficulty of choosing an operating mode and determining the efficiency of oscillation output in a multimode mode, ensuring stability of oscillation radiation, with the presence of noise, etc. On the basis of the simulation results, the initial conditions of mathematical models were determined for enough accuracy of the numerical experiments of work points search for beam-plasma generators and the determination of the conditions for the ions heating. Such conditions not given in the literature are sufficient for the accurate description of the plasma by the hybrid method in the one-dimensional case.Документ Моделі взаємодії м'якого тіла з перешкодою і результати їх дослідження(Харків : Харківський національний університет імені В.Н. Каразіна, 2019) Світличний, Сергій Петрович; Svetlichniy, Sergey P.Sergey P. Svetlichniy. Models of soft body interaction with a target and the results of their analysis. – Qualification scientific paper, manuscript. Thesis for candidate degree in Technical Science: speciality 01.05.02 – mathematical modeling and computational methods. – National aerospace university named after N. E. Zhukovskiy “Kharkiv Aviation Institute”; V. N. Karazin Kharkiv National University, the Ministry of Education and Science of Ukraine, Kharkiv, 2019. In the thesis, for the first time, there has been developed and scientifically proved a hybrid model of contact interaction between soft body and aircraft engine blade. The model is used for multipurpose analysis of the influence of the blade design parameters on their reaction in case of soft body impact of different mass, with different speeds and at different angles. The model was verified by comparing the results of numerical simulation with the test results. The model allows to determine the loads acting on the blade without carrying out a full-scale experiment, which significantly simplifies, speeds up and reduces the costs of testing the blades for bird resistance. The simulation technique of soft body to engine blade interaction was further developed. The method differs from the existing ones by using smoothed particles method for discretization of the soft body, which allows to eliminate the problems of numerical instability and expand the scope of simulation and analysis of mechanical processes accompanying the impact.