Browsing Сериальные издания by Title

Now showing items 81-100 of 7861

    • 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

    • Data transmission with simulink on 6-DOF platform on can bus 

      Mikhailov, V. G. (БНТУ, 2021)
      Use of CAN BUS for data transmission in Real-Time mode with Simulink on control objects is considered (6-DoF a platform). It is revealed that software of CAN_API.dll adapters, created in the Microsoft Visual Studio (MVS) does not work with TDM-GCC‑64 Matlab/Simulink because of different approach in names of the dll functions according to the standard C ++ 11/17. Recompile by the ...
      2021-04-21

    • Deep Learning Automated System for Thermal Defectometry of Multilayer Materials 

      Momot, A. S.; Galagan, R. M.; Gluhovskii, V. Yu. (БНТУ, 2021)
      Currently, along with growth in industrial production, the requirements for product quality testing are also increasing. In the tasks of defectoscopy and defectometry of multilayer materials, the use of thermal nondestructive testing method is promising. At the same time, interpretation of thermal testing data is complicated by a number of factors, which makes the use of traditional ...
      2021-07-07

    • 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

    • Design of Peltier Element Based on Semiconductors with Hopping Electron Transfer via Defects 

      Poklonski, N. A.; Vyrko, S. A.; Kovalev, A. I.; Anikeev, I. I.; Gorbachuk, N. I. (БНТУ, 2021)
      The study of thermoelectric properties of crystalline semiconductors with structural defects is of practical interest in the development of radiation-resistant Peltier elements. In this case, the spectrum of energy levels of hydrogen-like impurities and intrinsic point defects in the band gap (energy gap) of crystal plays an important role. The purpose of this work is to analyze ...
      2021-03-18

    • Designing a Planar Fluxgate Using the PCB Technology 

      Kolomeitsev, A. A.; Zatonov, I. A.; Pischanskaya, M. I.; Baranov, P. F.; Ilyaschenko, D. P.; Verkhoturova, E. V. (БНТУ, 2021)
      The development of novel methods, scientific devices and means for measuring magnetic fields generated by ultra-low current is among promising directions in the development of medical equipment and instruments for geodetic surveys and space exploration. The present work is to develop a small sensor capable of detecting weak magnetic fields, which sources are biocurrents, radiation ...
      2021-07-07

    • 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

    • Determination of 238U Content by Gamma Radiation Emitting from 234mPa Radionuclide 

      Khruschinski, Arkadiy; Kutsen, Semen; Zhukouski, Alex; Sugai, Naoyuki; Sugai, Hiroshi; Mogi, Michinori (БНТУ, 2022)
      Radionuclide 238U is one of the most important radioactive elements that must be controlled in nuclear power engineering, geological exploration, control of radioactive contamination of soils and raw materials used in construction. The most optimal way to control 238U is to use the 234mPa radionuclide, the activity of which, due to its short lifetime (≈ 1.2 min), is unambiguously ...
      2022-04-05

    • Determination of Flow Characteristics in Technological Processes with Controlled Pressure 

      Reader, T.; Tenenev, V. A.; Chernova, A. A. (БНТУ, 2020)
      Assessment of the environmental and economic performance of a safety valve requires information about the flow of the substance through the valve when it is actuated. The goal of this paper was to determine the flow rate of the discharged substance and the mass flow rate of the substance entering the safety valve when it is actuated. Proposed a mathematical model to describe the ...
      2020-09-18

    • Determination of Parameters of Electrode Metal Transported Drops by Simulation and Visualization 

      Ilyaschenko, D. P.; Kryukov, A. V.; Lavrova, E. V.; Kuznetsov, M. A.; Verkhoturova, E. V. (БНТУ, 2020)
      The nature of the molten electrode metal melting and transfer is the main process parameter of manual metal arc welding (MMA) with coated electrodes. It significantly affects the efficiency of the welding process. For this reason the relevant task is to identify the parameters of the transferred molten electrode metal drops and their further transfer into the weld pool with maximum ...
      2020-09-18

    • Determination of the Error in Transferring of Length Unit’s Size when Measuring the Nanoparticles’ Diameter Using an Analyzer of Particles’ Differential Electrical Mobility 

      Solomakho, V. L.; Bagdun, A. A. (БНТУ, 2021)
      The quality of nanomaterials and nanotechnologies is largely determined by the stability of the applied technologies, which, to a large extent, depend on the constancy of particle sizes. In this regard, metrological problems arise that are associated both with measuring the dimensions of the microstructure of aerosols, suspensions and powders, and with ensuring the uniformity of ...
      2021-10-15

    • Development and investigation of new design piezoelectric laser beam shutter 

      Bubulis, A.; Jurenas, V.; Mačiukienė, V.; Navickaite, S. (БНТУ, 2012)
      In this paper authors investigate laser beam shutting system of a new design. The scheme of the investigated laser beam shutter and working principle are explained. According the experi-mental research results of the developed laser beam shutting system was performed.
      2013-02-05