Дослідження та синтез системи автоматичного керування температурою теплоносія у варильному котлі для виготовлення фруктових джемів

The purpose is to improve the quality of the process of heating fruit jams in the boiler through the improvement of the algorithm of automatic control of the temperature of the heat medium in the steam jacket. The main criteria for the quality of the system of automatic control of the temperature of the heat medium are the time of rising and readjustment of the transition process at the output of the system. Research methodology. When solving research tasks, the method of computational experiments using specialized computer programs for modeling transient processes in automatic control systems is taken as the basis. The methods of the modern theory of automatic control were used in the calculation of the heat medium temperature regulator in the cooking boiler. At the same time, the requirements for the control process from the point of view of jam production technology, as well as the spedifics of the operation of the control object in real conditions are taken into account

Дослідження та синтез системи автоматичного керування рівнем води у шахтному водозбірнику за критерієм мінімізації дисперсії коливань споживаної потужності

The purpose is to increase the efficiency of the process of automatic control of the water level in the mine reservoir due to the improvement of the automatic control algorithm. The main indicator of the quality of the system of automatic control of the water level in the mine reservoir is the minimization of the dispersion of fluctuations in the total power consumed by the pumps of the station. Research methodology. The tasks are solved using the method of computational experiments with the use of specialized computer programs for modeling the process of controlling pumps in the reservoir. To study the automatic control system, theoretical research methods were used, namely, analysis and synthesis of the system based on the modern theory of automatic control, as well as systems analysis. Evaluation of the effectiveness of the automatic control process was carried out using the methods of mathematical statistics

Модифікований алгоритм автоматичного керування температурою в електричній печі опору для термообробки металу

The purpose is to improve the quality of heat treatment of metal in electric resistance furnaces by improving automatic temperature control in the furnace. The main quality criteria of the automatic control system is the minimization of the metal heating time without exceeding the permissible over-regulation of the transient process at the output of the control system. Research methodology. Provided that the research tasks are solved, the method of computational experiments using specialized computer programs for modeling transient processes in automatic control systems is taken as a basis. When calculating the temperature regulator in the furnace, methods of modern automatic control theory were used. The requirements for the control process and the specifics of the operation of the control object are taken into account. Theoretical research methods (systems analysis and synthesis) were used to study the automatic control system. The research was conducted on the basis of computational experiments using analytical and computerized methods of synthesis of automatic control systems. Evaluation of the effectiveness of the automatic control process was carried out using the methods of mathematical statistics

Method of identification of structure of electrical network of the building

Описаний алгоритм ідентифікації структури електричної мережі споруди та наведені результати перевірки ефективності запропонованого алгоритму за допомогою імітаційного моделювання.Описан алгоритм идентификации структуры электрической сети здания и приведены результаты проверки эффективности предложенного алгоритма с помощью имитационного моделирования

Pion photoproduction on the nucleon in the quark model

We present a detailed quark-model study of pion photoproduction within the effective Lagrangian approach. Cross sections and single-polarization observables are investigated for the four charge channels, $\gamma p\to \pi^+ n$, $\gamma n\to \pi^- p$, $\gamma p\to \pi^0 p$, and $\gamma n\to \pi^0 n$. Leaving the $\pi N\Delta$ coupling strength to be a free parameter, we obtain a reasonably consistent description of these four channels from threshold to the first resonance region. Within this effective Lagrangian approach, strongly constrainted by the quark model, we consider the issue of double-counting which may occur if additional {\it t}-channel contributions are included.Comment: Revtex, 35 pages, 16 eps figures; version to appear on PR