Now showing items 329-348 of 8145

    • Perspective reinforcing material for fibre concrete 

      Vedeneev, A. V.; Ignatenko, О. I.; Gritsaenko, V. I. (БНТУ, 2011)
      The different types of wire fiber are considered, advantages of fiber of high-modular wire with heightened bending stiffness are shown. Analysis by volumes of fiber production in the world is carried out. Peculiarities of fiber production at RU P «BMZ» are shown. Recommendations on correlation «wire diameter-fiber length» are given for different types of fiber for prevention of ...
      2014-07-02
    • Photospectral Data Obtaining with the Unmanned Aerial Spectrometry Vehicle 

      Lamaka, A. A.; Gutarau, A. V.; Shcherbakou, N. G.; Ivuts, P. V. (БНТУ, 2023)
      Study of the Earth’s surface objects reflectance characteristics with unmanned aerial vehicles is one of the most actual remote sensing trends. Aim of this work was to develop a method for obtaining of photospectral data using unmanned aerial spectrometry vehicle. An adaptation of the cameras spatial resolution evaluating technique based on a specialized target photographic ...
      2023-04-13
    • PoligonSoft для литейного производства 

      Монастырский, А. В.; Власов, Ю. Б. (БНТУ, 2022)
      В статье рассказывается о системе компьютерного моделирования литейных процессов «ПолигонСофт». Описаны основные возможности системы, рассказано о стадиях работы в ней. Отдельно рассматриваются особенности последней версии программного продукта: что нового в решателе заполнения и напряженно-деформированного состояния, что нового в препроцессоре и сеточном генераторе. Проведен ...
      2022-11-11
    • Possibilities of Using of Surface and Subsurface Waves’ Amplitude-Angle Characteristics for Control of Materials with Surface-Hardened Inhomogeneous Layer 

      Baev, A. R.; Asadchaya, M. V.; Mayorov, A. L.; Sergeeva, O. S.; Delenkovsky, N. V. (БНТУ, 2022)
      Improving the efficiency of ultrasonic control of hardened surface layers of metal products with a heterogeneous structure obtained using different technologies is a pressing problem of industrial production. The purpose of this work was to investigate the possibilities of measuring the depth of the surface inhomogeneous layer of steel objects on the basis of the use of amplitude ...
      2022-12-29
    • Prediction of Dynamic Characteristics of Thermocouples with Thin-Wire Sensing Elements 

      Safina, I. A.; Artemyeva, S. A. (БНТУ, 2022)
      Thermocouples dynamic characteristicsʼ prediction is one of the relevant directions in the field of dynamic measurements of non-stationary temperatures of liquid and gaseous media. Thermocouples dynamic characteristicsʼ prediction makes it possible to provide effective continuous correction in automatic control systems for non-stationary temperatures. The purpose of this paper ...
      2022-07-05
    • Probability of Erroneous Data Registration in a Single Photon Erasure-Type Communication Channel with a Receiver Based on a Photon Counter 

      Timofeev, A. M. (БНТУ, 2022)
      When measuring low-power optical signals, it is necessary to ensure the highest reliability of the received data, which is especially important for single-photon communication channels. This determines the expediency of using photon counters as receiving modules for such channels. They are highly sensitive, but are characterized by data recording errors. Therefore, the purpose ...
      2022-07-06
    • Problems of the process of moistening raw cotton and cotton fiber. Cotton fiber wetting process problems 

      Ortiqov, Z. U. (БНТУ, 2024)
      The moistening of raw cotton and cotton fiber is a critical stage in the textile production process, significantly influencing the quality of the final product. However, achieving optimal moisture content presents numerous challenges. One of the primary problems is the uneven distribution of moisture during processing, which can lead to variations in fiber strength and quality. ...
      2024-12-27
    • Properties and applications of antifriction silumin 

      Marukovich, E. I.; Stetsenko, V. J. (БНТУ, 2011)
      Antifrictional silumin which excels traditional bronzes in mechanical and tribotechnical properties is developed. Ecologically safe casting technology of billets of 30–300 mm in diameter of antifrictional silumin is created. Their cost is 2–3 times lower than that of similar bronzes. The new technology is introduced in manufacture in the Republic of Belarus.
      2014-07-02
    • Pulsed KGd(WO4)2 Raman laser: towards emission linewidth narrowing 

      Savitski, V. G. (БНТУ, 2015)
      The linewidth of a KGd(WO4)2 pulsed Raman laser is analysed experimentally for different configurations of the Raman and pump resonators: with narrow and broadband pump emission profiles, with and without linewidth narrowing elements in the Raman laser resonator, with and without injection seeding into the Raman cavity. The benefits of a narrow linewidth pump source in combination ...
      2015-07-24
    • Pезультаты краткого сравнительного анализа математических моделей влияния ионосферы земли на сверхширокополосные сигналы x-диапазона 

      Касперович, М. М.; Кондратенок, В. А. (БНТУ, 2015)
      Для формирования дальностного портрета при использовании сверхширокополосного линейно частотно-модулированного сигнала в радиолокационных станциях необходимо учитывать все искажения электромагнитной волны на радиотрассе. При наблюдении за околоземными объектами сигнал проходит через ионосферу. Электромагнитная волна в ней будет подвергаться нелинейным искажениям, которые изменят ...
      2015-08-04
    • Rationale for the Choice of the Ellipsoidal Reflector Parameters for Biomedical Photometers 

      Bezuglaya, N.; Haponiuk, A.; Bondariev, D.; Poluectov, S.; Chornyi, V.; Bezuglyi, M. (БНТУ, 2021)
      Biomedical photometersʼ information-measuring systems with ellipsoidal reflectors have acceptable results in determining of biological tissues optical properties in the visible and near-infrared spectral range. These photometers make it possible to study the optical radiation propagation in turbid media for direct and inverse problems of light-scattering optics. The purpose of ...
      2021-12-21
    • Recycling of Materials for Pavement Dressing: Analytical Review 

      Tingguo, Liu; Zankavich, V. N.; Aliakseyeu, Yu. H.; Khroustalev, B. M. (БНТУ, 2019)
      The paper presents an analytical review of materials recycling for pavement dressing. Recycling or repeated usage of pavement dressing materials while making reconstruction and repair of road pavements is not considered as a new conception and it has been realized in various countries of the world since 20th century. Recycling (hot, cold) is based on methods of its execution, ...
      2019-04-16
    • Reference Input Signals Formation for Induction Motor Control in Traction Drive 

      Opeiko, O. F. (БНТУ, 2023)
      The purpose of this work is to build the analytical improved (with resistances estimation) real time computation of the reference inputs for rotor flux and torque in the vector control system of an induction motor of a traction electric drive. The reference inputs must maximize electromagnetic torque in conditions of voltage source instability, particularly in magnetic field ...
      2023-06-08
    • Refractive index determination for a plane dielectric layer using the measurements of transmitted beam intensity 

      Serdyuk, V. M.; Titovitsky, J. A. (БНТУ, 2017)
      The aim of the present work is the theoretical justification of new refractive index determination technique for a homogeneous transparent plane dielectric layer. It uses intensity measurements for two polarizations of transmitting electromagnetic beam and does not take into consideration phase relationships and phase parameters of testing field at unknown thickness of a layer. ...
      2017-03-02
    • Reinforced Concrete under the Action of Carbonization and Chloride Aggression: a Probabilistic Model for Service Life Prediction 

      Leonovich, S. N.; Shalyi, E. E.; Kim, L. V. (БНТУ, 2019)
      Reinforcement corrosion of marine and coastal hydraulic structures due to chloride aggression and concrete carbonization leads to a sharp decrease in structure safety. The reinforcement is subjected to a depassivation process as soon as a chloride concentration on its surface exceeds a certain threshold concentration, or the pH value in a concrete protective layer is decreased ...
      2019-08-12
    • Research of Digital Camera Dynamic Range on the Imaging Processing Basis 

      Sutkowski, M.; Saukova, Ya. (БНТУ, 2017)
      Digital images provide to determine photometric and colorimetric properties of objects subject to validation all elements of a measuring channel (digital camera, software, display) and solve the problem of their limited dynamic ranges. The aim of the study was to explore the dynamic range of a digital camera for use in photometric and colorimetric measurements. The Laboratory of ...
      2017-09-04
    • Research of Regenerative Braking Strategy for Electric Vehicles 

      Le, Van Nghia; Dam, Hoang Phuc; Nguyen, Trong Hoan; Kharitonchik, S. V.; Kusyak, V. A. (БНТУ, 2023)
      In the context of global energy instability caused by the transformation of global demand for energy and energy resources, one of the most important areas in the automotive industry is the development of electric vehicles. Serial production of high-tech electric vehicles with a long range contributes to the stabilization of the energy market and the sustainable development of the ...
      2023-04-22
    • Research of Surface Wear Resistance of Aluminum Alloy Modified with Minerals using Sclerometry Method 

      Skazochkin, A. V.; Bondarenko, G. G.; Zukowski, P. (БНТУ, 2019)
      Improving the wear resistance of the surface of metal parts used in various industries is one of the relevant areas of materials science. The aim of this work was a comparative study of the wear resistance of a sample of an aluminum alloy (EN AW-2024, an aluminum alloy of the Al-Cu-Mg system) modified with ultrafine particles of minerals using the sclerometry method, which makes ...
      2019-09-16
    • Research of ultrasonic sensing and mixing elements for control of magnetorheological fluids stability 

      Dragasius, E.; Jurenas, V.; Mačiukienė, V.; Mazeika, D. (БНТУ, 2011)
      Using of magnetorheological fluids (MRF) can reduce energy costs and weight and increase the devices speed and lifetime. In order to fully use all the qualities of MRF properties one must from time to time mix them and measure their properties. These systems are still being designed and tested in the laboratories. There are many structures with rheological fluid, but in many ...
      2012-03-27
    • Research on Truck Active Suspension Systems Effectiveness with Auxiliary Hydraulic Cylinders 

      Le, V. N.; Tran, T. D.; Dam, H. P.; Kharytonchyk, S. V.; Kusyak, V. A. (БНТУ, 2025)
      The vehicle's body oscillation when traversing bumps not only causes driver discomfort but also negatively impacts the quality of the transported cargo. Consequently, numerous research studies have been conducted to improve suspension system characteristics with the goal of enhancing the vehicle’s ride comfort and body stability. The majority of them have shown that equipping ...
      2025-04-17