Browsing by Publisher: Сериальные издания "БНТУ"

Now showing items 21-40 of 7209

    • Afocal Mirror Systems with Small Axial Dimensions 

      Artioukhina, N. K.; Peroza, L. (БНТУ, 2020)
      The searching and designing new solutions for mirror systems, including afocal ones, has been studied for decades. In the design, it has always been difficult to combine optimization and cost. Nowadays, the problem remains relevant. The widespread use of mirror systems is due to some aspects: thermal stability, high resolution in a wide spectral range, and the absence of image ...
      2020-03-16

    • Algorithm and mathematical model for geometric positioning of segments on aspherical composite mirror 

      Conquet, B.; Zambrano, L. F.; Artyukhina, N. K.; Fiodоrtsev, R. V.; Silie, A. R. (БНТУ, 2018)
      In recent years, the largest terrestrial and orbital telescopes operating in a wide spectral range of wavelengths use the technology of segmented composite elements to form the main mirror. This approach allows: to expand the spectral operating range from 0.2 to 11.0 μm and to increase the diameter of the entrance pupil of the receiving optical system, while maintaining the optimal ...
      2018-09-18

    • Algorithm for alerting the unmanned aerial vehicle operator based on the image potential obstacle borders detection on the flight trajectory using the Open CV library 

      Stepanov, V. Y.; Hvitko, E. A. (БНТУ, 2018)
      The article describes several modifications of the obstacle detection algorithm on the flight trajectory of an unmanned aerial vehicle (UAV). First, we give an illustration of the problems on the example of the relief image on topographic maps and the essence of the relief image by horizontal contours. Then the conclusion is made about necessity of development of algorithm and ...
      2019-02-05

    • Algorithm for Control of Unmanned Aerial Vehicles in the Process of Visual Tracking of Objects with a Variable Movement’s Trajectory 

      Adnastarontsau, A. A.; Adnastarontsava, D. A.; Fiodоrtsev, R. V.; Katser, D. V.; Liavonau, A. Y.; Romanov, D. V.; Tcherniakovski, D. N.; Mikhailau, А. О. (БНТУ, 2021)
      The purpose of the research was to create an algorithm for determining and correcting the output parameters of the navigation module and the flight-navigation complex of unmanned aerial vehicles which provides control of an aviation gyro-stabilized platform with a multispectral optoelectronic system during flight and tracking various objects of observation. Principles of control ...
      2021-03-18

    • Algorithm of Plastic Concrete Crack Resistance is Calculation under Capillary Shrinkage Using Generalizing Criteria 

      Leonovich, S. N. (БНТУ, 2018)
      The method of concrete crack-resistance prediction at early age is developed at capillary shrinkage with use of approaches of fracture mechanics, which is guided by the concept of accumulation of defects in structure in the form of capillaries and cracks to their critical concentration of Cc. At the same time process at two stages is considered: on the first – process of formation ...
      2019-01-02

    • An Adaptive Maximum Power Output Sustaining System for a Photovoltaic Power Plant Based on a Robust Predictive Control Approach 

      Elzein, I.; Petrenko, Yu. N. (БНТУ, 2020)
      Photovoltaic power plants have non-linear voltage-current characteristic, with specific maximum power point, which depends on operating conditions, viz. irradiation and temperature. In targeting the maximum power, it is by far known that the photovoltaic arrays have to operate at the maximum power point despite unpredicted weather changes. For this reason the controllers of all ...
      2020-10-07

    • An algorithm and a program for configuring risographic printing, taking into account the printing properties of paper 

      Yudenkov, V. S.; Sulim, P. E. (БНТУ, 2024)
      The widespread use of risograph printing in printing houses requires an increase in the speed of equipment while maintaining the printing quality of the original layouts. The problem of risograph printing is not always obtaining high-quality images, since the risographs used in the standard driver (periodic, non-periodic) do not always allow you to get the printed image the same ...
      2024-08-30

    • An Approach to Data Processing for the Smart District Heating System 

      Sednin, A. V.; Zherelo, A. V. (БНТУ, 2022)
      The article deals with the district heating systems transition to intelligent systems by developing a united information system and obtaining a high level of controllability of the en-tire system. During the implementation of automated control systems of district heating, a number of information tasks of the lower level are being introduced, including the data collection for ...
      2022-06-10

    • An Approach to Monitoring of Magnetic Parameters of Cores of a Chain of Spheres. Diagnostics of Different Chain’s Length and Core’s Radius 

      Sandulyak, A. A.; Sandulyak, D. A.; Gorpinenko, Y. O.; Sandulyak, A. V.; Ershova, V. A. (БНТУ, 2022)
      The basic structural elements of the magnetized granular medium (effectively used, in particular, in apparatus of thin magnetic separation) are granule chains (according to channel-by-channel model), in connection with which there is a need to detail the features of their magnetization. The purpose of the work is to develop and implement an approach to measuring magnetic (micro)flows ...
      2022-07-06

    • Analysis and Implementation of Metamaterial-Inspired Microstrip Antenna for Wireless Applications 

      Pande, S. V.; Patil, D. P.; Sangole, M. K.; Antonov, S. (БНТУ, 2024)
      In this paper, a novel metamaterial-inspired microstrip antenna for wireless applications is proposed. The proposed design consists of a radiating path on top and a uniformly distributed split ring-shaped metamaterial structure on the ground. The presented antenna of 50´38 mm with a thickness of 1.6 mm is printed on FR4 substrate and resonates at 1.80 GHz. The design was fabricated ...
      2024-10-17

    • Analysis of Efficiency of Research & Development Activities among Countries with Developed and Developing Economies Including Republic of Belarus while Using Method of Stochastic Frontier Approach 

      Zhukovski, I. V.; Gedranovich, A. B. (БНТУ, 2016)
      В статье исследуется вопрос оценки эффективности научно-исследовательской деятельности 69 стран мира с развитой и развивающейся экономикой с помощью метода стохастического анализа данных (Stochastic Frontier Analysis, SFA). В качестве входных показателей (ресурсов) для расчета эффективности использовали следующие индикаторы: количество ученых на один миллион населения, количество ...
      2016-12-08

    • Analysis of Hydrogen Use in Gas Turbine Plants 

      Sednin, V. A.; Sednin, A. V.; Matsyavin, A. A. (БНТУ, 2023)
      Improvement of the efficiency of modern power systems requires the development of storage technologies, optimization of operation modes, and increased flexibility. Currently, various technical solutions are used for electricity storage. The results of a literary review with an analysis of existing energy storage systems are presented, their advantages and disadvantages are ...
      2023-04-26

    • Analysis of Illumination Generated by LED Matrices Distribution 

      Bogdan, P. S.; Zaytseva, E. G.; Baranov, P. O.; Stepanenko, A. I. (БНТУ, 2022)
      Сreation of indoor lighting systems with the possibility of changing its parameters in space and time is a promising direction within the framework of the intellectual environment system. The aim of this work was to create a methodology for calculating the illumination created by LED matrices which does not require the use of specialized software products and is adapted to the ...
      2022-04-06

    • Analysis of Implementation Effectiveness of Two Working Fluids Characterized by Different Viscoelastic Characteristics at Hydrodynamic Impact on the Borehole Bottom Zone 

      Kupavykh, K. S.; Kupavykh, A. S.; Morenov, V. A. (БНТУ, 2019)
      Combination of hydrodynamic impact on the formation with acid treatment may be seen as a promising direction in the field of well development and repair in complex geological conditions. With multiple repetition of hydraulic shocks in conjunction with the injection of acid solution, the depth and opening of cracks gradually increases, which contributes to a deeper penetration of ...
      2019-04-16

    • Analysis of precipitation kinetics of manganese and copper sulfides in interstitial free steels 

      Hong, M. H.; Choi, K. Y.; Marukovich, E. I.; Lebedinsky, Y. A.; Branovitsky, A. M. (БНТУ, 2010)
      Model of precipitation is based on classical theory of nucleation and growth with description of numeric methods for modeling. Now authors present numerical calculations of precipitation kinetics. In the beginning they repeat basic formulas of this model.
      2014-06-24

    • Analysis of Requirements and the Feasible Limit for Error Reduction in Two-Parameter Magnetic Determination of Steels’ Hardness 

      Sandomirski, S. G. (БНТУ, 2020)
      All measurements of mechanical properties of materials in the magnetic structural analysis are indirect and relationships between the measured parameters are correlated. An important physical parameter of steel is hardness. An increase in the correlation coefficient R and a reduction in the standard deviation (SD) are achieved when controlling the hardness of steels with two-parameter ...
      2020-09-18

    • Analysis of the operation of the algorithm for processing the image of a solar panel to assess its dustiness 

      Albagoush, A. A. (БНТУ, 2025)
      Solar power plants are usually located in deserts, where the amount of incident solar energy is maximum. Sandstorms, small animals and birds that leave droppings contaminate the surfaces of solar panels, which leads to a decrease in the panels' power generation. The author has developed an algorithm for processing the panel image to estimate the degree of its output power reduction ...
      2025-04-15

    • Analysis of the Problem of Electric Buses Charging in Urban Transport 

      Czerepicki, A.; Choromanski, W.; Kozlowski, M.; Kazinski, A. (БНТУ, 2020)
      The electric bus is an ecological means of transport. Its operation reduces the negative impact on the environment. The transition to electric urban transport is in line with the concept of sustainable development of the European Union and the Polish “Act on Electromobility and Alternative Fuels”. Today, on the streets of Polish cities, electric buses are increasingly replacing ...
      2020-08-04

    • Analysis of the State of the Road Traffic Safety in the Republic of Kazakhstan 

      Ibrayev, K.; Ibrayev, А.; Kapskiy, D.; Kot, Y.; Rybinskiy, А.; Bogdanovich, S. (БНТУ, 2019)
      The article presents the results of the study of the road traffic safety on the automobile roads of the Republic of Kazakhstan. We performed the analysis of the main indicators, specifying the state of the road traffic safety on the automobile roads of the republican significance of the Republic of Kazakhstan. In many regulatory acts, such as “The Priority Action Plan for Improving ...
      2019-12-06

    • Analysis of Trams’ Consumption Depending on the Type of Traffic Light Used 

      Czerepicki, A.; Gorka, A.; Szustek, J. (БНТУ, 2019)
      In the XXI century, when environmental awareness is growing and the impact of human activity on the planet is more and more noticeable, striving to minimize energy consumption seems to be a necessary direction in the development of technology. This development cannot take place without an initial understanding and describing the relationships influencing specific technologies. ...
      2019-12-06