Browsing Наука и Техника by Title

Now showing items 23-42 of 881

    • 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

    • 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

    • 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

    • 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

    • 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

    • Design Features when Using an Effective Microturbine as a Range Extending Engine 

      Nadareishvili, G.; Kostyukov, A.; Karpukhin, K. (БНТУ, 2019)
      The rapid development of electric vehicles stimulates the development of structures related to their operation. Including the use of the range extending engine for electric vehicles. The use of gas turbine engines for vehicles has always been of interest. The microturbine in the range extending engine is relevant today. However, the possibility of using a microturbine as part of ...
      2019-12-06

    • Detection of Reflexive Signs in Town Planning Systems of Ukraine and Republic of Belarus 

      Smilka, V. A. (БНТУ, 2018)
      As a city is a complex system, it complies with the principles pertaining to organization and management of systems. System analysis makes it possible to figure out the difference between managing systems (subject) from systems that are managed (object). There is a link between these system formations which unites them in a common system. Such relationship is a source of information ...
      2018-04-11

    • 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

    • 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

    • 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

    • Experimental Determination and Comparative Analysis of the PPH030GP, ABS and PLA Polymer Strength Characteristics at Different Strain Rates 

      Zalohin, M. Yu.; Skliarov, V. V.; Dovzhenko, Ja. S.; Brega, D. A. (БНТУ, 2019)
      Nowadays the field of application of products made from polymer materials is constantly increasing. These products find their wide application in the most high-tech industries such as automotive, aerospace and medical industry. Modern trends in the development of the automotive industry predicts that 75 % of the total car mass will be replaced with polymer materials by 2020 and ...
      2019-07-04

    • Features of Controlling Electropneumatic Valves of Actuator to Control its Clutch with Acceleration Valve 

      Yaryta, O. А.; Mychalevych, M. G.; Leontiev, D. N.; Klymenko, V. I.; Bogomolov, V. A.; Gritsuk, I. V.; Novikova, Y. B. (БНТУ, 2018)
      The article deals with one of the ways to control an actuator of the automated clutch control system. The aim is to design control of the electropneumatic actuator, to control its coupling with the acceleration valve on the basis of experimental research as well as to provide rational parameters of the automated clutch control system for the robotic transmission. The feature of ...
      2018-02-09

    • Finite Element Method Analysis of Centreless-Lunette Turning of Heavy Shafts 

      Vasilevich, Yu. V.; Dounar, S. S. (БНТУ, 2017)
      Dynamics of heavy lathe tool ta be renovated has been simulated in the paper. Original turning scheme concerns finish-machining of large rotor shafts. High-positioned parts and a milling head may create dynamic problems. For this very reason FEM-simulation has been carried in static, modal and harmonic arrangements. A carrying system for shaft support consists of a bed, a support, ...
      2017-05-29

    • Forecasting the Risk of Bankruptcy in Poorly Formalized Processes 

      Gaibnazarova, Z. T.; Solieva, B. T.; Iminova, N. A. (БНТУ, 2024)
      There is a class of complex systems characterized by dynamism, multi-link structural elements, multi-stage, multi-linked chain of processes. Moreover, each of these processes occurs under conditions of stochastic and non-stochastic uncertainty in the initial information, internal and external environment, which predetermine the uncertainty of the nature of the development of the ...
      2024-02-06

    • Fuel Consumption of Wheeled Vehicle and Transportation Costs during Highway Construction/Reconstruction 

      Leontiev, D. N.; Ihnatenko, A. V.; Synkovska, O. V.; Ryzhikh, L. А.; Smirnova, N. V.; Aleksandrov, Yu. V.; Rudenko, N. V. (БНТУ, 2021)
      A method is proposed for determining the fuel consumption of a wheeled vehicle depending on its speed, road surface flatness and road slope in the longitudinal direction. The purpose of the research is to derive mathematical relationships for calculating the fuel consumption of vehicles, which is one of the transport cost factors during the construction/ reconstruction or overhaul ...
      2021-12-02