Now showing items 101-120 of 7869

    • Development and Testing of a Methodology for Assessing of the Correlation Velocity Measurements’ Accuracy for the Hydrodynamic Investigations of the Turbulent Coolant Flow in Nuclear Reactor Elements 

      Konovalov, I. A.; Chesnokov, A. A.; Barinov, A. A.; Dmitriev, S. M.; Khrobostov, A. E.; Legchanov, M. A.; Borodin, S. S.; Makarov, M. A. (БНТУ, 2021)
      The correlation method of the coolant flow measuring is widely used in research practice including for studying of turbulent coolant flows in scale models of elements of nuclear power plants. The aim of this work was to develop a technique for assessing the effect of noise recorded by a measuring system on the flow rate readings obtained using the correlation method. A technique ...
      2021-03-18
    • Development of a new generation of machine-tool equipment for accuracy of machining 

      Wahid, El-Dahabi Farouk (2019)
      Wahid, El-Dahabi Farouk Development of a new generation of machine-tool equipment for accuracy of machining / El-Dahabi Wahid // Инженер-механик. – 2019. – № 4. – С. 30-31.
      2022-09-16
    • Development of Engineering Models of Nanosatellites for Student Training 

      Evchik, V. Е.; Spiridonov, A. A.; Ushakov, D. V.; Baranova, V. S.; Shalatonin, I. A.; Saechnikov, V. A. (БНТУ, 2022)
      The work purpose is the development of BSUIM-1 and BSUIM-2 complexes for training specialists in the aerospace industry with the used engineering test beds and experimental facilities. Two sets of nanosatellite engineering models and ground stations had developed. They allow testing hardware and software of the onboard equipment and payload, simulating operation modes, and flight ...
      2022-11-11
    • Development of Executive Equipment Design for Implementing the Process of Generating of Drops of Micro- and Nanoscale Range 

      Kuznetsov, M. A.; Ilyaschenko, D. P.; Kryukov, A. V.; Solodsky, S. A.; Lavrova, E. V.; Verkhoturova, E. V. (БНТУ, 2021)
      Modeling of velocities and temperatures processes distribution in the plasma-forming channel determining the design features and optimal parameters of the plasma torch nozzle is one of promising directions in development of plasma technologies. The aim of this work was to simulate the processes of velocities and temperature distribution in the plasma-forming channel and to determine ...
      2021-03-18
    • Development of model of optimal control of water supply system 

      Taghiyeva, A. D. (БНТУ, 2020)
      This paper considers the problem of optimal control of branched water supply systems. To control the system, the problem of optimal distribution of products is developed whereas non-linear programming problems are applied. We consider a system for providing products, consisting of magistral and distribution pipelines, taking products from the magistral pipeline. Each distribution ...
      2021-01-28
    • Development of Technological Solutions for Sewer Rehabilitation Using Clinker Brick 

      Goncharenko, D. F.; Aleinikova, A. I.; Yesakova, S. V.; Hudilin, R. I. (БНТУ, 2021)
      The aim of the work is to develop a technology for the restoration of damaged sections of sewer collectors using clinker bricks. A significant part of such collectors in the Ukraine has completely exhausted their depreciation resource. For their construction, concrete and reinforced concrete were used, which are subject to destruction as a result of the influence of many factors ...
      2021-12-02
    • Development of Wear Resistant Coatings Formed by Plasma Spraying of Alloy Ni–Fe–Cr–Si–B–C System Reinforced with Ceramics Al2O3 

      Kalinichenko, A. S.; Devoino, O. G.; Meshkova, V. V. (БНТУ, 2016)
      Создание функционально ориентированных, в том числе наноструктурированных, антифрикционных материалов и покрытий, обладающих качественно новым комплексом служебных свойств, является важной научной и практической задачей. В частности, для кабельного производства актуальна задача обеспечения высоких эксплуатационных свойств быстроизнашивающихся протягивающих и поддерживающих роликов ...
      2016-09-27
    • Devices and Methods for Measuring of the Ambient Air Dust. Short Review 

      Mukhurov, N. I.; Khodin, A. A.; Kim, Y.-J. (БНТУ, 2022)
      The main characteristics of airborne micro/nanoparticles, their impact on human health and air quality standards are presented. International standards classify microparticles by size (PM10, PM2.5, PM1, UFP), establish maximum allowable concentrations and control methods. Particular attention is paid to carbonand virus-containing microparticles control. To monitor the air environment ...
      2022-04-01
    • Diffuse Reflectance Spectrophotometers Based on C12880MA and C11708MA Mini-Spectrometers Hamamatsu 

      Firago, V. A.; Levkovich, N. V.; Shuliko, K. I. (БНТУ, 2022)
      Diffuse reflection spectroscopy with spatial resolution is a promising direction of non-destructive control of the properties of a number of scattering fine-dispersed materials, including food products. It can find wide practical application only in the presence of compact, easy-to-use and inexpensive spectrophotometric equipment. The aim of the article is to investigate the ...
      2022-07-05
    • 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