Browsing Сериальные издания by Title

Now showing items 70-89 of 7861

    • Common Features of Architectural Design of the Medical Purpose Building 

      Bulakh, I. V. (БНТУ, 2019)
      The paper considers principal features and specific character of architectural design for health care institutions. Main designing stages, missions and complexities for every successive designing step have been revealed in the paper. The paper presents specific features, main stages and design approaches to designing of modern health care facilities, comfortable architectural ...
      2019-08-12

    • Compact 999.6 nm Actively Q-Switched Yb3+:LuAlO3 Laser for Laser-Induced Breakdown Spectroscopy 

      Rudenkov, Alexander; Kisel, Viktor; Yasukevich, Anatol; Hovhannesyan, Karine; Petrosyan, Ashot; Kuleshov, Nikolai (БНТУ, 2019)
      Compact actively Q-switched diode-pumped lasers based on Yb3+-materials are of practical importance for wide range of scientific, industrial and biomedical applications. The aim of this work was to study the Yb3+:LuAlO3 actively Q-switched laser. One of the most promising crystalline hosts for rare-earth ions are Perovskite-like aluminate crystals. Yttrium aluminate crystal YAlO3 ...
      2019-06-27

    • Compact Passively Q-Switched Tm:KY(WO4)2 Laser 

      Kisel, V. E. (БНТУ, 2022)
      Diode-pumped thulium lasers emitting in the spectral range near 2 μm are attractive for applications in different areas: surgery, rangefinding, and environmental atmosphere monitoring. In this article the latest results of Tm:KYW laser performance with a polycrystalline Cr:ZnSe as the most available saturable absorber for 2 μm spectral region are presented. A maximum continuous-wave ...
      2022-04-05

    • Comparative Analysis of Measures and Technical Means for Suppressing the Aperiodic Current Component in Circuit Breaker 

      Kuchanskyi, V. V. (БНТУ, 2021)
      Electromagnetic transients are considered in the implementation of three-phase automatic reclose on the transmission line of extra high voltage 750 kV. The influence of automatic shunting of phases and pre-insertion active resistance for limiting the characteristics of the aperiodic component of the current, which obstructs the transition of full current through zero, is evaluated. ...
      2021-07-21

    • Comparative Study of Fiber Glass Reinforced Polymer and Carbon Fiber Reinforced Polymer on Cube and Cylinder 

      AL-obaidi, A. M. Sh.; Leonovich, S. N. (БНТУ, 2023)
      A comparative analysis of polymers reinforced with glass fiber and polymers reinforced with carbon fiber was carried out on a cube and a cylinder in the laboratories of Baghdad. 36 samples were taken with fiber percentages of 1.0, 2.5 and 5.0 % by weight of cement. The methodology of this study included the use of composite polymer fibers in the external reinforcement of concrete ...
      2023-02-08

    • Compare of Transient Quality in Automatic Control Systems with Classic PID Algorithm and Optimal Regulator 

      Kulakov, G. T.; Artsiomenka, K. I. (БНТУ, 2019)
      Currently, about 90–95% of generic controllers use the PID algorithm to generate control actions, while 64% of the PID controllers are used in single-circuit automatic control systems. Most of industries (power industry among them) use hundreds of automatic control systems. The quality of their work is the basis of economic efficiency of technical processes, ensuring safety, ...
      2019-04-03

    • Comparing Fuel Consumption and Emission Levels of Hybrid Powertrain Configurations and a Conventional Powertrain in Varied Drive Cycles and Degree of Hybridization 

      Maddumage, W. U.; Abeyasighe, K. Y.; Perera, M. S. M.; Attalage, R. A.; Kelly, P. (БНТУ, 2020)
      Hybrid electric powertrains in automotive applications aim to improve emissions and fuel economy with respect to conventional internal combustion engine vehicles. Variety of design scenarios need to be addressed in designing a hybrid electric vehicle to achieve desired design objectives such as fuel consumption and exhaust gas emissions. The work in this paper presents an analysis ...
      2020-02-04

    • Composite Materials Based on Cement Binders Modified with SiO₂ Nanoadditives 

      Khroustalev, B. M.; Leonovich, S. N.; Potapov, V. V.; Grushevskaya, E. N. (БНТУ, 2017)
      Development of nanotechnologies allows to solve a number of problems of construction materials science: increase in strength, durability, abrasion and corrosion resistance that determines operational reliability of building constructions. Generally it is achieved due to nanoparticles that modify the structure and properties of the existing materials or products and are entered ...
      2017-11-26

    • Compositionally Disordered Doped with Cerium Crystalline Garnet Type Materials for Brighter and Faster Scintillations 

      Korzhik, M. V. (БНТУ, 2021)
      Ce-doped tetracationic garnets (Gd, M)3Al2Ga3O12(M = Y, Lu) form a family of new multipurpose promising scintillation materials. The aim of this work was to evaluate the scintillation yield in the materials of quaternary garnets activated by cerium ions with partial isovalent substitution of the matrix-forming gadolinium ions by yttrium or lutetium ions. Materials were obtained ...
      2021-12-22

    • Concept and Methodological Aspects of Providing Balanced Innovative Development of Transportation System of the Russian Federation 

      Geraskina, I. N.; Goncharenko, L. P. (БНТУ, 2020)
      The growth of significance for innovative economic development of the Russian Federation determines necessity of deeper investigation of properties and specific features of its subsystems functioning, content and forms of their interaction, search for increasing efficiency of control systems. The transportation system is the most important strategic link of social and economic ...
      2020-04-01

    • Concept of Vector Multicomponent Physical Quantities, Models and Measurement Method 

      Nesterov, V. N. (БНТУ, 2022)
      The paper presents a new view of vector physical quantities as multicomponent quantities. Each of the components of the mentioned multicomponent quantities can carry important and even unique information about the sources and causes of their occurrence. Looking at the vector quantity as the multicomponent quantity led to the need to form the corresponding conception. There are ...
      2022-12-29

    • Conductive Channel for Energy Transmission 

      Apollonov, V. V. (БНТУ, 2014)
      Лазерный разряд, полученный при помощи конической оптики, является наиболее подходящим для образования проводящих каналов в атмосфере. Чаще всего рассматриваются только два типа лазеров для формирования высоко-проводящих каналов в атмосфере, управляемых лазерным разрядом: импульсные субмикросекундные газово-химический лазеры (CO2, DF) и короткоимпульсные твердотельные ультрафиолетовые ...
      2014-12-16

    • Contactless Automated Express Evaluation of Damages to a Car Body by Visual Parameters 

      Tarasovа, M.; Filkin, N.; Yurtikov, R. (БНТУ, 2019)
      Explosive development of computer technologies and their availability made it possible to extensively focus nowadays on emerging state-of-the-art technologies, digitalization, artificial intelligence, and automated systems, including in the field of road safety. It would be reasonable to implement some technical devices in this respect to remove human factor and automate some ...
      2019-12-06

    • Continuous-wave Laser on Er,Yb-Codoped Pentaborate Crystal 

      Gorbachenya, K. N.; Kisel, V. E.; Deineka, R. V.; Yasukevich, A. S.; Kuleshov, N. V.; Maltsev, V. V.; Mitina, D. D.; Volkova, E. A.; Leonyuk, N. I. (БНТУ, 2019)
      We report, for the first time to our knowledge, a diode-pumped continuous-wave microchip Er,Yb:YMgB5O10 laser. The purpose of this work was to study the growth technique, spectroscopic properties and continuous-wave laser performance of Er3+,Yb3+:YMgB5O10 novel crystal. Absorption and luminescence spectra as well as kinetics of luminescence decay were studied. Ytterbiumerbium ...
      2020-01-08

    • Control of Pneumatic Actuator for Automated Mechanical Transmission Dry Friction Clutch Base on the Pulse Width Modulation Signal 

      Kharytonchyk, S. V.; Kusyak, V. A.; Nghia, Le Van (БНТУ, 2021)
      To ensure quality of dry friction clutch engagement in automated mechanical transmission during vehicle starting-up and maneuvering the control range of clutch actuator has to be maximum wide. It depends on the consistency of the clutch actuator geometric parameters with the electrical characteristics of the used solenoid valves, the output stage of the controller and the PWM ...
      2021-02-04

    • Correction of the Contribution of Scattered Photon Radiation to the Ionization Chamber Readings During X-Ray Radiation Quality Assessment 

      Zaharadniuk, A. A.; Senkovsky, K. G.; Lukashevich, R. V. (БНТУ, 2022)
      Reduction of the systematic error when determining the characteristics of the reference X-ray radiation fields is an essential task according to the ISO 4037-1:2019 standard. This task is especially important in dosimetry laboratories when establishing the qualities of reference photon fields. The aim of the study was to develop a method that allows taking into account the ...
      2022-11-11

    • Current Transformer Saturation Detection Method Based on Artificial Neural Network 

      Rumiantsev, Yu. V. (БНТУ, 2023)
      When current transformer is saturated, mainly due to the presence of an exponentially decaying DC component in the fault current, its secondary current has a distinctive distorted waveform which significantly differs from its primary (true) waveform. It leads to an underestimation of the secondary current value calculated by the relay protection compared to its true value. Thus, ...
      2023-06-08

    • Cоздание и эффективность автоматической системы шариковой очистки конденсатора 180-КЦС-1 турбины Т-180/210-130-1 ЛМЗ (Часть 2) 

      Зенович-Лешкевич-Ольпинский, Ю. А.; Зенович-Лешкевич-Ольпинская, А. Ю. (БНТУ, 2015)
      Разработана методика расчета экономической эффективности, которая может быть универсальной и использоваться для технико-экономического обоснования установки системы шариковой очистки конденсатора на паровых турбинах электростанций. Данная методика, кроме эффекта от снижения давления отработавшего пара в конденсаторе за счет внедрения системы шариковой очистки, учитывает также ...
      2015-10-10

    • Cоздание и эффективность автоматической системы шариковой очистки конденсатора 180-КЦС-1 турбины Т-180/210-130-1 ЛМЗ. Часть 1 

      Зенович-Лешкевич-Ольпинский, Ю. А.; Наумов, А. Ю.; Зенович-Лешкевич-Ольпинская, А. Ю. (БНТУ, 2015)
      Для снижения потерь в холодном источнике (конденсаторе) и повышения эффективности использования топливно-энергетических ресурсов представлена современная автоматическая система шариковой очистки трубок конденсатора 180-КЦС-1 турбоагрегата Т-180/210-130-1 ЛМЗ Гомельской ТЭЦ-2. Рассмотрены проблемы эксплуатации конденсаторов паровых турбин и методы их очистки от отложений. В ...
      2015-06-11

    • Cпособ получения волокнистого полуфабриката для производства упаковки 

      Кузьмич, В. В. (БНТУ, 2015)
      В статье представлен новый способ получения волокнистого полуфабриката для производства картона, бумаги и упаковки с использованием углекислого газа и гидразин-гидрата при моносульфитной варке костры. Повышение выхода целевого продукта можно объяснить снижением деструкции углеводов растительного сырья в процессе его варки. Улучшение качества целевого продукта (повышение белизны ...
      2015-03-11