Browsing by Title

Now showing items 4340-4359 of 123274

    • Theoretical ground of influence of ozonization on working process of diesel 

      Golubenko, A.; Kravchenko, A.; Nozhenko, H. (BNTU, 2010-10)
      Theoretical pre-conditions of high-quality influence of ozonization on physical and chemical properties of fuel and energy and ecology indexes of work of diesel are validated. The results of theoretical and experimental researches of influence of the ozonized fuel on the working process of diesel are resulted.
      2012-02-28

    • Theoretical, calculating and experimental researche of electromechanical transmissions of machines 

      Yakimovich, B.; Umnyashkin, V.; Filkin, N.; Muzafarov, R. (BNTU, 2010-10)
      Yakimovich, B. Innovative way of the belarusian automobile engineering / B. Yakimovich [et al.] // International congress of heavy vehicles, road trains and urban transport, 06-09 October 2010: book of papers / Belarussian national technical university, Academic automative association, International federation of automative engineering societies. – Minsk: BNTU, 2010. – P. 110-114.
      2012-02-28

    • Theory and practice of interaction between border and customs authorities 

      Prokharau, U. A. (БНТУ, 2023)
      Prokharau, U. A. Theory and practice of interaction between border and customs authorities / U. A. Prokharau ; науч. рук. V. V. Putsiata // Digest of articles of the VI Republican Youth Scientific-practical Conference “i-Customs.by” [Electronic resource] : Minsk, 16 May 2023 / compilers: A. Y. Zhevlakova, A. N. Shavel, E. S. Goloubtsova. – Minsk : BNTU, 2023. – С. 54-58.
      2023-07-14

    • Thermal expansion of KYbXY1-X(WO4)2 crystals 

      Yumashev, K.; Trusova, E.; Guretskii, S.; Karpinsky, D.; Trukhanova, K.; Kuleshov, N.; Malyarevich, A. (БНТУ, 2022)
      Average and differential linear thermal expansion coefficients of KYbxY1-x(WO4)2 crystals are determined in the directions of the optical indicatrix axes Np, Nm and Ng using dilatometric technique. Dependence of the average and differential linear thermal expansion coefficients on the temperature in the range of 75–290 C and ytterbium contains x from 0 to 1.0 are discussed.
      2022-12-28

    • Thermal lens study in diode pumped Ng- and Np-cut Nd:KGd(WO4)2 laser crystals 

      Loiko, P. A.; Yumashev, K. V.; Kuleshov, N. V.; Savitski, V. G.; Calvez, S.; Burns, D.; Pavlyuk, A. A. (Optical Society of America, 2009)
      A comparative study of thermal lensing effect in diode laser pumped Ng- and Np-cut Nd:KGd(WO4)2 (KGW) laser crystals was performed for laser emission polarized along the principle refractive axis, Nm. The thermal lens in the Ng-cut Nd: KGW was found to be weakly astigmatic with a positive refractive power for both the Nm- and Np-directions. For Np -cut Nd:KGW, strong astigmatism ...
      2012-01-24

    • Thermal Lensing and Multiwatt Microchip Laser Operation of Yb:YCOB Crystals 

      Loiko, P.; Serres, J. M.; Mateos, X.; Yu, H.; Zhang, H.; Liu, J.; Yumashev, K.; Griebner, U.; Petrov, V.; Aguilo, M.; Diaz, F. (2016)
      Thermal lensing is studied in monoclinic Yb:Ca4YO(BO3)(3) (Yb:YCOB) oxoborate crystals cut along the optical indicatrix axes. For all orientations, the thermal lens is positive. In the Z-cut crystal, the sensitivity factors of the thermal lens are MZ-X = 2.4 and MZ-Y = 2.8 m(-1)/W (for E parallel to X), and the astigmatism degree is as low as S/M = 14%. The positive thermal lens ...
      2018-03-18

    • Thermal lensing measurements in the anisotropic laser crystals under diode pumping 

      Loiko, P. A.; Savitski, V. G.; Yumashev, K. V.; Kuleshov, N. V.; Pavlyuk, A. A. (БНТУ, 2012)
      An experimental setup was developed for thermal lensing measurements in the anisotropic di-ode-pumped laser crystals. The studied crystal is placed into the stable two-mirror laser cavity operating at the fundamental transversal mode. The output beam radius is measured with re-spect to the pump intensity for different meridional planes (all these planes contain the light propagation ...Nm.
      2013-02-05

    • Thermal lensing properties of Alexandrite laser crystal 

      Loiko, P.; Ghanbari, S.; Matrosov, V.; Yumashev, K.; Major, A. (БНТУ, 2019)
      Thermal lensing properties of Alexandrite laser crystal / P. Loiko [и др.] // Приборостроение-2019 : материалы 12-й Международной научно-технической конференции, 13–15 ноября 2019 года, Минск, Республика Беларусь / редкол.: О. К. Гусев (председатель) [и др.]. – Минск : БНТУ, 2019. – С. 441-443.
      2020-01-03

    • Thermal Measurement and its Application for Diagnostics of Distribution Oil Transformers 

      Korenciak, D.; Sebok, M.; Gutten, M. (БНТУ, 2019)
      In the first part of the paper the theory of infrared radiation and the use of non-destructive measurement of electrical devices by means of thermovision are under analysis. In the second part of paper basic principles and application of non-contact temperature measurement are examined. In the third part of paper thermal processes in distribution oil transformer – temperature in ...
      2019-11-29

    • Thermal power engineering and environment 

      Kazeika, A. V.; Tsimafeyeva, Yu. V. (БНТУ, 2022)
      Kazeika, A. V. Thermal power engineering and environment / A. V. Kazeika, Yu. V. Tsimafeyeva // Знание иностранного языка как основной фактор для работы в инновационных условиях [Электронный ресурс] : сборник материалов 78-й студенческой научно-технической конференции, 21 апреля 2022 г. / Белорусский национальный технический университет, Факультет горного дела и инженерной экологии ...
      2022-06-20

    • Thermal properties of thermal barrier coatings (TBC) 

      Bektemirov, B. Sh. (БНТУ, 2018)
      Bektemirov, B. Sh. Thermal properties of thermal barrier coatings (TBC) / B. Sh. Bektemirov ; sci. supervisor R. X. Saydakhmedov // Литьё и металлургия 2018 [Электронный ресурс] : сборник научных работ I Международной научно-практической конференции студентов и магистрантов, 15-16 ноября 2018 года / Белорусский национальный технический университет, Механико-технологический факультет ...
      2019-01-25

    • Thermal Spray Coating Process and its variants 

      Pilipchuk, Y.; Khomenko, E. (БНТУ, 2016)
      Pilipchuk, Y. Thermal Spray Coating Process and its variants / Y. Pilipchuk, E. Khomenko // Сборник материалов 72-й студенческой научно-технической конференции, 20-28 апреля 2016 г. / Белорусский национальный технический университет, Факультет горного дела и инженерной экологии. Секция Английский язык. - Минск, 2016. – С. 403-405.
      2017-02-03

    • Thermal treatment of radiation defects in silicon 

      Saidimov, Ya. A.; Rumi, R. F.; Umarov, F. B. (БНТУ, 2022)
      Saidimov, Ya. A. Thermal treatment of radiation defects in silicon / Ya. A. Saidimov, R. F. Rumi, F. B. Umarov // Научные основы использования информационных технологий нового уровня и современные проблемы автоматизации : сборник трудов I Международной научной конференции, 25-26 апреля 2022 года / Ташкентский государственный технический университет имени Ислама Каримова ; Белорусский ...
      2023-01-20

    • Thermal-technical characteristics and thermal regime of energy-efficient solar house 

      Uzakov, G. N.; Khamraev, S. I.; Zuvaytova, Z. K.; Charvinski, V. L. (БНТУ, 2022)
      Thermal-technical characteristics and thermal regime of energy-efficient solar house / G. N. Uzakov [et al.] // Информационные технологии в политических, социально-экономических и технических системах [Электронный ресурс] : материалы научно-практической конференции, 22 апреля 2022 года / Белорусский национальный технический университет, Факультет технологий управления и гуманитаризации ...
      2022-05-25

    • Thermen, Bad Neuenahr 

      Тригубович, Ю. М. (БНТУ, 2022)
      Тригубович, Ю. М. Thermen, Bad Neuenahr / Ю. М. Тригубович ; науч. рук. В. А. Ходяков // Современные направления в проектировании, строительстве, ремонте и содержании транспортных сооружений [Электронный ресурс] : материалы VII Международной студенческой конференции / редкол.: С. Е. Кравченко (пред.) [и др.] ; сост. В. А. Ходяков. – Минск : БНТУ, 2022. – С. 150-153.
      2023-01-18

    • Thermo-optic characterization of Yb:CaGdAlO4 laser crystal 

      Loiko, P.; Druon, F.; Georges, P.; Viana, B.; Yasukevich, A. (2014)
      Principal thermo-optic coefficients (TOCs), dno/dT and dne/dT, are measured for Yb:CaGdAlO4 crystal, for the first time, to our knowledge. At the wavelength of ~1 μm, they equal –7.6 and –8.6 (Ч10-6 K-1), accordingly. Thermal coefficients of the optical path (TCOP) are determined for this crystal for the principal crystal cuts (a-cut and c-cut) and light polarizations (π or σ). ...
      2017-11-18

    • Thermo-optic coefficients of monoclinic Er3+:(GdY)2SiO5 crystal 

      Yumashev, K.; Malyarevich, A.; Hertsova, A.; Goman, V.; Pavlovski, L. (БНТУ, 2022)
      Thermo-optic coefficients of the Er3+-doped gadolinium-yttrium oxyorthosilicate crystal Er3+:GdYSO are determined at a wavelength of 632.8 nm for light polarizations E // Np, Nm and Ng. Linear thermal expansion coefficients are estimated for this crystal in the directions of the optical indicatrix axes Nm and Ng.
      2022-12-28

    • Thermo-optic properties of orthorhombic BeAl6O10 crystal 

      Yumashev, K.; Malyarevich, A.; Vilejshikova, E.; Goman, V.; Pavlovski, L. (БНТУ, 2021)
      Thermo-optic coefficients dn/dT were determined for orthorhombic BeAl6O10 crystal for light polarizations E || Np, Nm and Ng in the wavelength range of 0.4–1.1 m. Thermo-optic dispersion formulas for principal thermo-optic coefficients of BeAl6O10 are presented for this spectral range. The principal dn/dT are positive and show a polarization-anisotropy: dnp/dT = 6.4, dnm/dT = ...
      2022-02-02

    • Thermo-optic properties of Yb:Lu2O3 single crystals 

      Loiko, P. A.; Yumashev, K. V.; Schödel, R.; Peltz, M.; Liebald, C.; Mateos, X.; Deppe, B. (Springer, 2015)
      A detailed study of thermo-optic properties of 1.5 at.% Yb:Lu2O3 single crystal is performed. Thermo-optic dispersion formulas are derived for dn/dT coefficient and thermal coefficient of the optical path. At the wavelength of 1.03 μm, dn/dT = 5.8 × 10−6 K−1. High-precision temperature-dependent measurements of the thermal expansion coefficient α are performed. At the room ...
      2018-09-17

    • Thermoconvective flow velocity in a high-speed magnetofluid seal after it has stopped 

      Krakov, M. S.; Nikiforov, I. V. (Maik Nauka-Interperiodica Publishing, 2012)
      Convective flow is investigated in the high-speed (linear velocity of the shaft seal is more than 1 m/s) magnetofluid shaft seal after it has been stopped. Magnetic fluid is preliminarily heated due to viscous friction in the moving seal. After the shaft has been stopped, nonuniform heated fluid remains under the action of a high-gradient magnetic field. Numerical analysis has ...
      2016-03-29