Browsing Сериальные издания by Title

Now showing items 173-192 of 7861

    • Impulsively-Laser Excitation and Propagation of Ultrasonic Waves through Nanomagnetic Fluid 

      Baev, A. R.; Mitkovets, A. I.; Asadchaya, M. V.; Mayorov, A. L. (БНТУ, 2021)
      Magnetic fluids belong to the class of nanomaterials with a high gain of light absorption, aggregative and sedimentation stability as well as controllability by external fields, which is of interest to use in the field of optoacoustics. The purpose of the work was to experimentally study the effect of the optoacoustic transformation in a magnetic fluid, depending on the concentration ...
      2021-10-18

    • Impulsively-Laser Excitation and Propagation of Ultrasonic Waves through Nanomagnetic Fluid 

      Baev, A. R.; Mitkovets, A. I.; Asadchaya, M. V.; Mayorov, A. L. (БНТУ, 2021)
      Magnetic fluids belong to the class of nanomaterials with a high gain of light absorption, aggregative and sedimentation stability as well as controllability by external fields, which is of interest to use in the field of optoacoustics. The purpose of the work was to experimentally study the effect of the optoacoustic transformation in a magnetic fluid, depending on the concentration ...
      2021-10-15

    • In-Band Pumped Continuous-Wave Lasers Based on Ho:KY(WO4)2 Crystal and Ho:KGdYbY(WO4)2 Epitaxial Layer 

      Dernovich, O. P.; Gusakova, N. V.; Kisel, V. E.; Kravtsov, A. V.; Guretsky, S. A.; Pavlyuk, A. A.; Kuleshov, N. V. (БНТУ, 2020)
      2 μm lasers are in demand for a number of practical applications, such as environmental monitoring, remote sensing, medicine, material processing, and are also used as a pump sources for optical parametric generators. Crystals of double potassium tungstates doped with ions of rare-earth elements were shown to be promising materials both for the creation of classical solid-state ...
      2020-12-18

    • Increasing of the Accuracy of Signalsʼ Time Parameters Measuring Using Double Pulse Trains 

      Isaev, A. V.; Suchodolov, U. V.; Sushko, A. S.; Sheinikau, A. A. (БНТУ, 2021)
      In modern diagnostics, much attention is paid to measuring of time parameters, as well as their change over time. The purpose of this work is to develop a method for measuring of time intervals which made it possible to increase the measurement accuracy by reducing errors associated with the instability of main parameters of the pulse signal. In the most of approaches used, the ...
      2021-12-22

    • Increasing the Quality of Transient Processes in the Vehicle Transmission 

      Taratorkin, A.; Derzhankii, V.; Taratorkin, I. (БНТУ, 2019)
      The paper shows results of an experimental and theoretical study of dynamic processes in the vehicle transmission after kinematic alignment of elements during gearshifts. The purpose of the research is increasing the quality of transient processes in the vehicle transmission. Applying an analysis of experimental results obtained through looking into dynamics of a 3-ton vehicle ...
      2019-12-06

    • Inductive Type Impedance of Mo/n-Si Barrier Structures Irradiated with Alpha Particles 

      Poklonski, N. A.; Kovalev, A. I.; Usenko, K. V.; Ermakova, E. A.; Gorbachuk, N. I.; Lastovski, S. B. (БНТУ, 2023)
      In silicon microelectronics, flat metal spirals are formed to create an integrated inductance. However, the maximum specific inductance of such spirals at low frequencies is limited to a value of the order of tens of microhenries per square centimeter. Gyrators, devices based on operational amplifiers with approximately the same specific inductance as spirals, are also used. ...
      2023-04-13

    • Influence of additional vibration impact on the effectiveness of electrical stimulation procedure 

      Kiselev, M. G.; Labun, E. I.; Liutsko, P. S. (БНТУ, 2017)
      An experimental instrument complex which includes hardware for performing complex procedures using electrical shock massager frictional action was performed. The aim of the study was to influence the additional vibration effect on the efficiency of the procedure of electrostimulation. In order to increase the efficiency of the procedure electrostimulation authors proposed to carry ...
      2017-06-09

    • Influence of Cylindrical Shield Dimensions on Shielding Effectiveness 

      Kanafyev, O. D.; Trukhanov, A. V.; Zubar, T. I.; Grabchikov, S. S.; Panasiuk, M. I.; Kotelnikova, A. N.; Fedkin, V. А.; Fedosyuk, V. M. (БНТУ, 2022)
      Study of dimensional parametersʼ influence on shielding properties of cylindrical shields will allow to optimise the fusion process, as well as to reduce production costs by reducing the material used. The purpose of this work was to compare results of theoretical calculation of shielding effectiveness of an infinite cylindrical shield with the data obtained in real conditions. ...
      2022-07-06

    • Influence of Geometry and Boundary Conditions in Area of Cohesion between Materials on the Reflection of an Ultrasonic Beam. Part 1. Theoretical Research 

      Bayev, A. R.; Mayorov, A. L.; Levkovich, N. V.; Shavlovskiy, D. V.; Asadchaya, M. V. (БНТУ, 2021)
      The improvement of efficiency, reliability and productivity of ultrasonic testing of objects with cohesion between materials connected by welding, soldering, gluing, etc. is 'an important problem of the modern production technologies. The purpose of the paper is to determine in 3D space the conditions for increasing the sensitivity and reliability of the flaw detection in the ...
      2021-07-07

    • Influence of Geometry and Boundary Conditions in Area of the Cohesion between Materials on the Reflection of an Ultrasonic Beam. Part 2. Features of Experimental Simulation 

      Baev, A. R.; Levkovitch, N. V.; Asadchaya, M. V.; Mayorov, A. L.; Razmyslovich, G I.; Razmyslovich, G. I.; Burnos, A. Y. (БНТУ, 2021)
      Improving the efficiency of diagnostics of objects with layered structure as applied to detection of poorly detectable material bonding defects is an important production task. The aim of the work was to experimentally simulate ultrasonic scattering by samples of proposed defect simulator designs with discretely and smoothly varying boundary conditions correlating with the phase ...
      2021-12-22

    • Influence of laser beam profile on light scattering by human skin during photometry by ellipsoidal reflectors 

      Bezuglyi, M.; Bezuglaya, N.; Kostuk, S. (БНТУ, 2018)
      The correct accounting of laser emitter parameters for improvement of diagnostic authenticity of methods of optical biomedical diagnostic is important problem for applied biophotonic tasks. The purpose of the current research is estimation of influence of energy distribution profile in transversal section of laser beam on light scattering by human skin layers at photometry by ...
      2018-03-17

    • Influence of shortest path algorithms on energy consumption of multi-core processors 

      Prihozhy, A. A.; Karasik, O. N. (БНТУ, 2023)
      Modern multi-core processors, operating systems and applied software are being designed towards energy efficiency, which significantly reduces energy consumption. Energy efficiency of software depends on algorithms it implements, and, on the way, it exploits hardware resources. In the paper, we consider sequential and parallel implementations of four algorithms of shortest paths ...
      2023-10-13

    • The influence of soil density and the character of radioactive ¹³⁴Cs and ¹³⁷Cs pollution’s distribution on in situ measurements 

      Zhukouski, A.; Anshakou, O.; Nichyparchuk, A.; Marozik, P.; Kuten, S. (БНТУ, 2018)
      Periodic radiation monitoring of soils today is a priority task not only for Belarus, but also for Japan, suffered by Fukushima nuclear power plant accident. Use of portable and light spectrometers with ability to perform in situ measurements makes it possible to quickly estimate specific activity of measured radionuclides with required accuracy in particular soil site. Basic ...
      2018-03-17

    • Influence of Temperature from 20 to 100 °C on Specific Surface Energy and Fracture Toughness of Silicon Wafers 

      Lapitskaya, V. A.; Kuznetsova, T. A.; Chizhik, S. A. (БНТУ, 2023)
      The influence of temperature in the range from 20 to 100 °C on the specific surface energy and fracture toughness of standard silicon wafers of three orientations (100), (110) and (111) was studied. Silicon wafers were heated on a special thermal platform with an autonomous heating controller, which was installed under the samples. At each temperature, the samples were kept for ...
      2023-12-12

    • Influence of the Cut Axial Depth on Surface Roughness at High-Speed Milling of Thin-Walled Workpieces 

      Germashev, A. I.; Logominov, V. A.; Dyadya, S. I.; Kozlova, Y. B.; Krishtal, V. A. (БНТУ, 2021)
      The paper presents the results of research on the dynamics of end milling of thin-walled work-pieces having complex geometric shapes. Since the milling process with shallow depths of cut is characterized by high intermittent cutting, the proportion of regenerative vibrations decreases, and the effect of forced vibrations on the dynamics of the process, on the contrary, increases. ...
      2021-04-08

    • InfoGenerator. No. 1 (4), February, 2020 

      Shkutova, A.; Yurkevich, Y.; Apanasevich, N. (BNTU, 2020)
      The Library continues to provide necessary information about available resources for teachers, students and university staff, as well as all interested users. Last year InfoGenerator digest has proved to be a handy and useful tool for readers’ advisory, curriculum and research support. It is prepared by library professionals and includes book reviews, open access resources and ...
      2020-05-28

    • InfoGenerator. No. 1, October, 2019 

      Yurkevich, Y.; Apanasevich, N. (BNTU, 2019)
      The Scientific Library of Belarusian National Technical University (BNTU) offers you «InfoGenerator» digest, a free access resource providing information support to teachers, students and university staff. It is prepared by library professionals and includes book reviews, open access resources and latest university news. Systematization by field of science, annotations and ...
      2020-05-27

    • InfoGenerator. No. 2 (5), April, 2020 

      Shkutova, A.; Yurkevich, Y.; Apanasevich, N. (BNTU, 2020)
      Scientific Library of Belarusian National Technical University (BNTU) offers you new issue of «InfoGenerator» digest, a free access resource providing information support to teachers, students and university staff. This time we have packed it with new electronic books from library collections and open access resources concerning the following subjects: electrical engineering, ...
      2020-05-28

    • InfoGenerator. No. 2, November, 2019 

      Shkutova, A.; Yurkevich, Y.; Apanasevich, N. (BNTU, 2019)
      The Scientific Library of Belarusian National Technical University (BNTU) offers you «InfoGenerator» digest, a free access resource providing information support to teachers, students and university staff. It is prepared by library professionals and includes book reviews, open access resources and latest university news. Systematization by branch of science, annotations and ...
      2020-05-28

    • InfoGenerator. No. 3 (6), May, 2020 

      Shkutova, A.; Yurkevich, Y.; Apanasevich, N. (BNTU, 2020)
      The Scientific Library of BNTU continues to inform teachers, students and university staff about resources from library collections and open access resources. This issue of InfoGenerator digest presents books and other useful information on such topics as transportation system, transport economy, theory of mechanisms and machines, mechanics of materials, motor vehicles structures, ...
      2020-05-28