Browsing Сериальные издания by Title

Now showing items 110-129 of 7861

    • Digital Spectral Analysis by means of the Method of Averag Modified Periodograms Using Binary-Sign Stochastic Quantization of Signals 

      Yakimov, V. N. (БНТУ, 2021)
      The method of averaging modified periodograms is one of the main methods for estimating the power spectral density (PSD). The aim of this work was the development of mathematical and algorithmic support, which can increase the computational efficiency of signals digital spectral analysis by this method. The solution to this problem is based on the use of binary-sign stochastic ...
      2021-10-15

    • Digital Spectral Analysis by means of the Method of Averag Modified Periodograms Using Binary-Sign Stochastic Quantization of Signals 

      Yakimov, V. N. (БНТУ, 2021)
      The method of averaging modified periodograms is one of the main methods for estimating the power spectral density (PSD). The aim of this work was the development of mathematical and algorithmic support, which can increase the computational efficiency of signals digital spectral analysis by this method. The solution to this problem is based on the use of binary-sign stochastic ...
      2021-10-18

    • Dislocation avalanches and strain bursts in the boards of radio-engineering equipment 

      Bogorosh, A.; Višniakov, N.; Novickij, J.; Bubulis, A. (БНТУ, 2013)
      The aim of this work is to investigate the influence of vibrations on the material of the board. For that purpose a cascade of navigation devices boards was installed on the vibrational stand. Experiments were performed in the 0,5–10 Hz vibrational diapason range; 0–3 V voltage range; 0 – +45 °C allowed temperature range. Amplitude method was applied to determine the coordinates ...
      2013-12-02

    • DLP: Снижение риска утечки конфиденциальной информации банка 

      Андриянова, Т. А.; Саломатин, С. Б. (БНТУ, 2017)
      Исследуется применение DLP-системы для защиты конфиденциальной информации, предлагается методика адаптации DLP-системы к специфике деятельности организации, проводится сравнительный анализ результатов работы стандартной и адаптированной DLP-систем в Банке. Разработаны: методика анализа событий информационной безопасности, алгоритм реагирования на выявленные события, а также ...
      2017-11-02

    • Dual Wavelength Chirped Pulse Regenerative Amplifier Based on Yb3+:LuAlO3 Crystal for Terahertz Applications 

      Rudenkov, A.; Kisel, V.; Yasukevich, A.; Hovhannesyan, K.; Petrosyan, A.; Kuleshov, N. (БНТУ, 2020)
      Compact diode-pumped chirped pulse regenerative amplifier systems with pulse repetition rate of hundreds kilohertz based on Yb3+-doped crystals are of practical importance for wide range of applications such as materials processing, medicine, scientific research, etc. The aim of this work was to study the Yb3+:LuAlO3 crystal based dual wavelength chirped pulse regenerative ...
      2020-03-16

    • Dynamic Features of Spectra of Single and Quasi-Periodic Measuring Signals 

      Suchodolov, U. V.; Isaev, A. V.; Sheinikau, A. A. (БНТУ, 2022)
      Solving the problems of spectral processing of single and quasi-periodic signals in measurement and diagnostic systems is directly related to their isolation against the background of external interference or noise. The purpose of this work was to study single and quasi-periodic signals, i. e. signals limited in time, presented as separate components; development of a mathematical ...
      2022-07-06

    • Ecocure Blue – new Cold Box system with ultra-high efficiency and as low as possible emissions 

      Vacelet, P. H.; Taborsky, D. (БНТУ, 2018)
      By omitting materials subject to the labeling requirement in part 1 cold-box resin, Düker GmbH from Laufach can achieve an impressive reduction in emissions. Emission and workplace exposure limit values represent major challenges for foundries, and are becoming increasingly important due to every stricter statutory regulations. In particular, compliance with emission guidelines ...
      2018-04-07

    • Ecological and economic efficiency of traditional and alternative methods of electrical energy production with the features of The Islamic Republic of Iran 

      Mehdizadeh, M. A.; Kalinichenko, A. S.; Laptyonok, S. A. (БНТУ, 2018)
      The problems of energy, environment protection and ecology play a major role in the development of economy strategy in any country. Most of the traditional power stations operating on organic fuels have a negative impact on the environment. Furthermore, there is a depletion of natural resources due to human activities. One of the ways to solve the problem of environmentally ...
      2018-01-24

    • Effect of the Fill Ventilation Window on Performance of a Natural Draft Cooling Tower Subjected to Cross-Winds 

      Dobrego, K. V. (БНТУ, 2016)
      Для улучшения тепловой работы башенных испарительных градирен, особенно в условиях ветровых нагрузок, могут использоваться разнообразные аэродинамические элементы и конструктивные решения (дефлекторы, ветроперегородки и т. п.). Одним из предложений, впервые сформулированных сотрудниками Национальной академии наук Беларуси, было сооружение центрального вентиляционного отверстия в ...
      2016-09-29

    • Effect of viewing angle of IR thermography camera for the detection of landmine 

      Kurdi, M. Moustafa (БНТУ, 2018)
      The detection and recognition of sub-surface buried objects, such landmines, with variable characteristics may be extremely difficult. Infrared (IR) thermography, which is widely employed in the detection of discontinuities in materials and structures, would be in principle suitable also for this kind of application. The issue in this case appears to be the presence of excessive ...
      2018-10-26

    • Efficiency Estimation of Constructing of Wind Power Plant for the Heat Supply Needs 

      Bezhan, A.V. (БНТУ, 2022)
      As in the whole world, there are regions in Russia that experience heat supply difficulties, mainly due to the high cost of fossil fuel as well as to growth of energy resources cost and polluting emissions. In this regard, search for solutions which would provide energy saving with an increase of energy, commercial and ecological efficiency of modern heat supply systems is becoming ...
      2022-08-04

    • Electric Propulsion Systems Design Supported by Multi-Objective Optimization Strategies 

      Hirz, M.; Hofstetter, M.; Lechleitner, D. (БНТУ, 2019)
      Electric drive systems consisting of battery, inverter, electric motor and gearbox are applied in hybrid- or purely electric vehicles. The layout process of such propulsion systems is performed on system level under consideration of various component properties and their interfering characteristics. In addition, different boundary conditions are taken under account, e. g. ...
      2019-12-06

    • Electronic Lexicography: Traditional and Modern Approaches 

      Маkarych, М. V.; Popova, Yu. B.; Shved, M. O. (БНТУ, 2020)
      Nowadays there are a lot of modern technologies in electronic lexicography: speech synthesis technology, crossreferencing between dictionary modules, spell-checking functions, etc. The increasing availability of online information has necessitated intensive research in the area of automatic text summarization within the Natural Language Processing community. Belarusian scientists ...
      2020-10-02

    • Engineering of Light Electric Commercial Vehicle 

      Dorofeev, R.; Tumasov, A.; Sizov1, A.; Kocherov, A.; Meshkov, A.; Porubov, D. (БНТУ, 2020)
      The paper describes the process and results of the development of the light commercial electric vehicle. In order to ensure maximum energy efficiency of the developed vehicle the key parameters of the original electric motor. The article also presents the results of power electronic thermal calculation. For the mathematical model of the vehicle, the driving cycle parameters of ...
      2020-02-04

    • Ensuring Requirements for Emissions of Harmful Substances of Diesel Engines 

      Kuharonak, G. M.; Kapskiy, D. V.; Berezun, V. I. (БНТУ, 2020)
      The purpose of this work is to consider the requirements for emissions of harmful substances of diesel engines by selecting design and adjustment parameters that determine the organization of the workflow, and the exhaust gas cleaning system, taking into account the reduction of fuel consumption. Design elements and geometric characteristics of structures for a turbocharged diesel ...
      2020-08-04

    • Er,Yb:Ca3RE2(BO3)4 (RE=Y, Gd) – Novel 1.5 μm Laser Crystals 

      Gorbachenya, K. N.; Deineka, R. V.; Kisel, V. E.; Yasukevich, A. S.; Shekhovtsov, A. N.; Kosmyna, M. B.; Kuleshov, N. V. (БНТУ, 2019)
      The search for new crystalline host materials for the usage in lasers emitting in the eye-safe spectral range of 1.5–1.6 μm is an important task. The aim of this work was to study the growth technique, spectroscopic properties and laser characteristics of new active media – crystals Er3+,Yb3+:Ca3RE2(BO3)4 (RE=Y, Gd). Calcium-yttrium Er3+,Yb3+:Ca3Y2(BO3)4 (CYB) and calcium-gadolinium ...
      2019-03-15

    • Evaluation of Evaporative Degradation of Arc Torch Cathodes in Hydrocarbon-Containing Plasmas for Spraying, Thermal Protection Testing and Related Technologies 

      Gorbunov, A. V.; Gorbunova, V. A.; Devoino, O. G.; Petraconi, Filho G.; Halinouski, A. A. (БНТУ, 2022)
      Design of non-transferred DC electric arc plasma torches (EAPTs) operated with plasma gases containing alkane hydrocarbons, as a promising type of heaters for a number of technologies (thermal spraying, surface hardening, testing of thermal protection systems, etc.), requires taking into account the evaporation rate of surface cathode material (as one of the channels of its ...
      2022-06-09

    • Evaluation of Nonuniformity of Elastic Properties of Sheets Made from Closed-Сell Polyolefin Foams by Acoustic Method 

      Bogdan, O. P.; Zlobin, D. V.; Muraveva, O. V.; Molin, S. M.; Platunov, A. V. (БНТУ, 2021)
      The widespread use of polyolefin foams in strategically important industries is due to their high thermal, sound and vibration insulation properties. The aim of the work was to evaluate the non-uniformity of elastic properties over the area of sheets of polyolefin foams of various types using the acoustic non-contact shadow amplitude method of testing and confirmation by the ...
      2021-03-18

    • An Evaluation of Photovoltaic Systems MPPT Techniques under the Characteristics of Operational Conditions 

      Petrenko, Y. N.; Elzein, Imad A. (БНТУ, 2017)
      In this article an extended literature surveying review is launched on a set of comparative studies of maximum power point tracking (MPPT) techniques. Different MPPT methods are addressed with an ultimate aim of how to be maximizing the PV system output power by tracking Pmax in a set of different operational circumstances. In this paper maximum power point tracking, MPPT techniques ...
      2017-07-31

    • Evaluation of the Magnet Breakaway Force Measurement Accuracy of the NT-800 Sensors for Early Detection of Defects of Their Manufacturing 

      Kutsepau, A.; Kren, A.; Hnutsenka, Y. (БНТУ, 2021)
      Сontrol of mechanical stresses formed with the deposition of nickel coatings plays an important role in the diagnosis of coatings’ technical condition. Large internal stresses can lead to cracking or flaking of coatings which is completely unacceptable for critical parts and assembly units used, for example, in space technology for which reliability is of paramount importance. ...
      2021-10-18