Browsing by Title

Now showing items 2901-2920 of 119633

    • Parallel iprialist competitive algorithm: a method for global optimization 

      Alavi, Seyed Enayatallah; Naderan-Tahan, Marjan; Aminian, Mohamad (БНТУ, 2014)
      A novel parallel imperialist competitive algorithm (PICA) is presented for global optimization. The ICA is a new meta-heuristic optimization developed based on a socio-politically motivated strategy and contains two main steps: the movement of the colonies and the imperialistic competition. Here different parallel approach is utilized to improve the movement step of the algorithm. ...
      2015-03-16

    • Parallel Processor for Pattern Recognition 

      Tatur, Мichail (BNTU, 2013)
      Tatur, Мichail. Parallel Processor for Pattern Recognition / Мichail Tatur // Наука. Инновации. Производство = Science. Innovation. Production : сборник материалов 2-го Белорусско-Корейского форума, 19-20 ноября 2013. – Minsk : BNTU, 2013. – С. 75-76.
      2018-06-01

    • Parametric amplification of the signals in the electrostatic graviinertial sensor 

      Gilavdary, I.; Mekid, S.; Riznookaya, N. (БНТУ, 2017)
      The challenges of designing simple, reliable, and high sensitivity graviinertial sensors are investigated. The sensor comprises a proof mass (PM) and is fixed with the housing by the elastic torsion suspension. PM makes small rotations under the action of gravitational forces or inertial forces. The distinctive features of the sensor are that the differential electrostatic system ...
      2017-06-09

    • Parametric studies of models of the deep-submigron mosfet 

      Tran, Tuan Trung; Borovik, A.; Neiayev, V. (БНТУ, 2013)
      Tran, Tuan Trung. Parametric studies of models of the deep-submigron mosfet / Tuan Trung Tran, A. Borovik, V. Neiayev // Новые направления развития приборостроения : материалы 6-й Международной студенческой научно-технической конференции, 24-26 апреля 2013 г. / редкол.: О. К. Гусев [и др.]. – Минск : БНТУ, 2013. – С. 169.
      2022-10-24

    • “PARKING SPACE”的明天 

      Zhang, Dawei; Xu, Jiaming; Hao, Xue (БНТУ, 2021)
      现如今，快节奏高效率的生活让人们逐渐体会到汽车在日常生活中带给人们的便利。因 此人们对汽车的需求从公共交通类的公交车和出租车逐渐趋向于私家车，并且现在很多家庭也 已不满足于一台私家车。据数据统计，在过去的 2020年里，我国汽车的产销量达 2658.63 万台， 位居世界前几。但同比2019 年 1986.58 万台的产销量呈下降趋势。而呈现下降趋势的一大部分 原因就是因为“有车无位”。根据以上背景，本文提出了用数据挖掘技术分析了我国城市交通现 状，主要内容包括：国内汽车购买及汽车停放现状分析；公共停车场与收费停车情况对比；未 来汽车总量与停车位需求量预算分析；解决方案。
      2021-06-17

    • Parthenon faсade fea simulation as system of freely piled solids joined by gravity and friction 

      Dounar, S.; Iakimovitch, A.; Mishchanka, K.; Penkina, A.; Lavrenov, E.; Jakubowski, A. (БНТУ, 2019)
      Paper concerns to contact task simulation by FEA for “freely piled solids” systems. It may be different dry masonries. The antique façade of the Parthenon temple is taken for simulation as an example. Marble drums and blocks are held together only by friction and gravity. Multiplicity and variability of contact pressure patterns inside columns are disclosed. Surface compression ...
      2020-06-08

    • Partial bank reservation and its consequences 

      Качанович, В. В. (БНТУ, 2019)
      Today, commercial banks are trying to maximize profits by all sorts of sophisticated methods. One of these ways, known to usurers centuries ago, is partial reservation. This article deals with the mechanisms of operation of this method, as well as the reasons why, by resorting to this kind of methods, banks risk becoming vulnerable in critical situations.
      2019-12-06

    • Particular qualities of movement of goods in international mail 

      Маринич, А. А. (БНТУ, 2020)
      Маринич, А. А. Particular qualities of movement of goods in international mail = Особенности перемещения товаров в международных почтовых отправлениях / А. А. Маринич ; науч. рук. Н. С. Мойсеёнок // НИРС-76 [Электронный ресурс] : материалы научно-практической конференции студентов и курсантов, Минск, 23 апреля 2020 г. / Белорусский национальный технический университет ; редкол.: ...
      2020-07-31

    • Particularities of Exergy Analysis in Air Conditioning Systems 

      Prokhorov, V. I.; Troyanchuk, S. V.; Razakov, M. A. (БНТУ, 2022)
      The paper examines two methods of choosing the initial reference point for exergy of the moist air flow. The first method is characterized by a zero exergy value at the current temperature and humidity of the outdoor air, which are variable both in daily and annual periods. Another is characterized by constant values of parameters of moist indoor air (its temperature and humidity ...
      2022-02-22

    • Partitions made of cellular concrete blocks 

      Demidok, Y. A. (БНТУ, 2022)
      Demidok, Y. A. Partitions made of cellular concrete blocks / Y. A. Demidok ; науч. рук. Y. V. Safronova // Перспективы инновационно-технологического и экономического развития минерально-сырьевого комплекса [Электронный ресурс] : сборник материалов XХ Международной научно-практической конференции, посвященной 20-летию Факультета горного дела и инженерной экологии Белорусского ...
      2022-10-19

    • Passenger traffic statistics 

      Pototskaya, A. O.; Ropot, N. V. (БНТУ, 2023)
      Pototskaya, A. O. Passenger traffic statistics / A. O. Pototskaya, N. V. Ropot ; sci. sup. M. S. Levitskaja // Знание иностранного языка как основной фактор для работы в инновационных условиях [Электронный ресурс] : сборник материалов 79-й студенческой научно-технической конференции, 20 апреля 2023 г. / Белорусский национальный технический университет, Факультет горного дела и ...
      2023-05-25

    • Passenger Transport of the Future 

      Gromak, E.; Ladutska, N. (БНТУ, 2021)
      Gromak, E. Passenger Transport of the Future / E. Gromak, N. Ladutska // Сборник материалов 77-й студенческой научно-технической конференции [Электронный ресурс] : 22 апреля 2021 г. / Белорусский национальный технический университет, Факультет горного дела и инженерной экологии ; сост.: С. А. Хоменко, С. П. Личевской. – Минск : БНТУ, 2021. – С. 105-108.
      2021-06-22

    • Passive mode locking of 2.09 μm Cr,Tm,Ho:Y3Sc2Al3O12laser using PbS quantum-dot-doped glass 

      Denisov, I. A.; Skoptsov, N. A.; Gaponenko, M. S.; Malyarevich, A. M.; Yumashev, K. V.; Lipovskii, A. A. (Optical Society of America, 2009)
      Passive Q-switched mode locking of a 2.09 μm flashlamp-pumped Cr3+,Tm3+,Ho3+:Y3Sc2Al3O12 laser by use of a phosphate glass doped with PbS quantum dots of 5 nm in radius was demonstrated. Mode-locked pulses of 290 ps in duration and up to 0.5 mJ in energy were registered.
      2012-01-23

    • Passive mode locking of a Tm,Ho:KY(WO4)2 laser around 2 μm 

      Lagatsky, A. A.; Fusari, F.; Calvez, S.; Gupta, J. A.; Kisel, V. E.; Kuleshov, N. V.; Brown, C. T. A.; Dawson, M. D.; Sibbett, W. (Optical Society of America, 2009)
      We report the first demonstration, to our knowledge, of passive mode locking in a Tm3+, Ho3+-codoped KY(WO4)2 laser operating in the 2000-2060 nm spectral region. An InGaAsSb-based quantum well semiconductor saturable absorber mirror is used for the initiation and stabilization of the ultrashort pulse generation. Pulses as short as 3.3 ps were generated at 2057 nm with average ...
      2012-01-23

    • Passive Q-switching of a Tm,Ho:KLu(WO4)2 microchip laser by a Cr:ZnS saturable absorber 

      Serres, Y. M.; Loiko, P. A.; Mateos, X.; Jambunathan, V.; Yasukevich, A. S.; Yumashev, K. V.; Petrov, V.; Griebner, U.; Aguilo, M.; Diaz, F. (Optical Society of America, 2016)
      A diode-pumped Tm;Ho:KLu WO42 microchip laser passively Q-switched with a Cr:ZnS saturable absorber generated an average output power of 131 mW at 2063.6 nm with a slope efficiency of 11% and a Q-switching conversion efficiency of 58%. The pulse characteristics were 14 ns∕9 μJ at a pulse repetition frequency of 14.5 kHz. With higher modulation depth of the saturable absorber, 9 ...
      2016-05-12

    • Passive Q-switching of Yb bulk lasers by a graphene saturable absorber 

      Loiko, P. A.; Serres, J. M.; Mateos, X.; Liu, G.; Zhang, H.; Yasukevich, A. S.; Yumashev, K. V.; Petrov, V.; Griebner, U.; Aguilo, M.; Diaz, F. (Springer, 2016)
      Compact Yb:KLu(WO4)2 and Yb:LuVO4 lasers diode-pumped at 978 nm are passively Q-switched by a single-layer graphene saturable absorber. The Yb:KLu(WO4)2 laser generated 165 ns/0.49 μJ pulses at 1030 nm with 170 mW average output power and 12 % slope efficiency. With the Yb:LuVO4 laser, 152 ns/0.83 μJ pulses were achieved. The output power reached 300 mW at 1024 nm, and the slope ...
      2016-05-11

    • A passively modelocked Cr4+: forsterite laser with electronically controlled output characteristics for novel imaging and manipulation systems 

      Zolotovskaya, S. A.; Wilcox, K. G.; Abdolvand, A.; Livshits, D. A.; Rafailov, E. U. (БНТУ, 2011)
      Applicability of electronic control of laser output parameters to bulk solid-state laser sources is demonstrated. A single laser source with variable pulse duration for novel imaging and manipulation systems is presented. Stable passive mode-locking of a Cr4+:forsterite laser using a voltage controlled p-n junction quantum dot saturable absorber was achieved. Output shortening ...
      2012-03-26

    • Passively Q-switched Er,Yb:GdAl3(BO3)4 laser with SWCNT as a saturable absorber 

      Barashkova, M.; Gorbachenya, K.; Yasukevich, A.; Kisel, V.; Kuleshov, N.; Leonyuk, N.; Choi, S.; Rotermund, F.; Khomenko, S. (БНТУ, 2016)
      Passively Q-switched Er,Yb:GdAl3(BO3)4 laser with SWCNT as a saturable absorber / M. Barashkova [et al.] // 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. 382-386.
      2017-02-03

    • Passively Q-Switched Thulium Microchip Laser 

      Gaponenko, M.; Kuleshov, N.; Südmeyer, T. (2016)
      We present the first passively Q-switched thulium microchip laser. The diode-pumped laser incorporates a Tm:KYW gain medium and an InGaAs semiconductor saturable absorber mirror. The laser emits pulses with a duration of 2.4 ns at a repetition rate of 1.2 MHz with an average output power of 130 mW at a wavelength of 1905 nm. It operates in a fundamental TEM00 mode with M2 < 1.1. ...
      2018-03-06

    • Pathogenicity of beauveria bassiana against locusta migratoria manilensis 

      Meyen, Haifeng Wu (БНТУ, 2020)
      Locusta migratoria manilensis (Meyen) is one of lawn pests, feeding a variety of grasses.Locusts nibble grass blades on the lawn great harm,leading to deterioration of the ecological environment,affecting people's appreciation entertainment.Therefore, prevention is important for landscape ecological protection lawn locusta.The traditional chemical control of environmental ...
      2021-01-26