Browsing Наука и Техника by Title

Now showing items 17-36 of 881

    • Calculation of Particle Flow Temperature during Plasma Spraying of Mixture Consisting of Self-Fluxing Powder and Ceramics 

      Kalinichenko, A. S.; Krivosheyev, Yu. K.; Meshkova, V. V.; Devoino, O. G. (БНТУ, 2018)
      Plasma spraying is one of the most effective methods allowing both to restore worn surfaces of parts and create wearresistant coatings on new parts aiming the increase of their service life. Properties of the produced coatings depend on number of parameters, such as a plasma temperature, a chemical and fractional composition of the sprayed mixture, a distance from a plasma torch ...
      2018-06-01

    • Cement-Based Materials Modified with Nanoscale Additives 

      Polonina, E. N.; Leonovich, S. N.; Khroustalev, B. M.; Sadovskaya, E. A.; Budrevich, N. A. (БНТУ, 2021)
      The most common and reliable material without which modern construction is indispensable is concrete. The deve- lopment of construction production is pushing for new solutions to improve the quality of concrete mix and concrete. The most demanded and significant indicators of a concrete mixture are the compressive strength and mobility of the concrete mixture. Every year, the ...
      2021-06-07

    • City Delivery Routes Planning Based on the Ant Colony Algorithm 

      Olkhova, M.; Roslavtsev, D.; Matviichuk, O.; Mykhalenko, A. (БНТУ, 2020)
      For any company that sells its products in the networks of city stores, the urgent issue is the optimal delivery of their goods. During routing it is necessary to take into account many restrictions caused by specific conditions of transportation process in the city: number of cargoes, nature of cargoes, delivery time, structure of fleet and its presence, work time of enterprises ...
      2020-08-04

    • 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

    • 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

    • 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

    • 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