Showing 16,701 - 16,720 results of 19,524 for search '"Mathematics"', query time: 0.12s Refine Results
  1. 16701

    Control system of spacecraft solar array drive assembly actuator by D. S. Polozhentsev, D. J. Dzhukich, D. N. Zakharov

    Published 2019-11-01
    “…In the work, methods of mathematical and experimental investigation are applied. …”
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    Article
  2. 16702

    Calculation of Temperature Fields and Stresses in Pipe-Lines by R. I. Esman

    Published 2009-02-01
    “…A mathematical model and a numerical solution of the problem pertaining to non-stationary temperature fields and profile temperature stresses in multi-layer heat pipelines of various application purposes are given and obtained in the paper.The developed mathematical model is applied for calculation of temperature fields and stresses in heat pipelines with the purpose of an efficient usage of heat-transfer agent power po-tential.…”
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    Article
  3. 16703

    Optimization of composition and characteristics of economically alloyed cast iron for mold tubes by R. E. Trubitskij, A. G. Slutskij, B. A. Kaledin

    Published 2003-02-01
    “…There are received the mathematical adequate equations, which allowed to optimize the cast composition and solidity. …”
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    Article
  4. 16704

    Numerical Solution of Boundary Problem Pertaining to Two-Dimensional Temperature Pattern with Internal Heat Sources by R. I. Esman

    Published 2008-06-01
    “…The paper contains a mathematical model and a numerical solution of non-stationary heat conduction with variable heat sources that are acting during the whole hardening process. …”
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    Article
  5. 16705

    New methods of reconstruction of foundry production units by О. I. Ponomarenko, V. V. Torjanik

    Published 2002-11-01
    “…In the article there is offered the method of development and reconstruction of casting houses and their subsystems, based on using of the procedure of system analysis, theory of reliability, hierarchical structure of graph theory, probabalistic automatons, mathematical and simulation technique. For the first time in foundry production practice there is offered such mathematical model, which allowed to link the reliability parameters of equipping functioning with the usable technology, to create the optimal structures of casting houses subsystems.…”
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    Article
  6. 16706

    Performance evaluation of underwater vision systems by V.Y. Kolyuchkin, N.M. Kostylev, Y.S. Gulina

    Published 2023-10-01
    “…The methodology is based on a system approach and uses mathematical models of the aqueous medium where an optical signal propagates, the underwater object image registration system, and the mathematical model of the human visual system. …”
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    Article
  7. 16707

    Frequency Properties Research of Elevator Drive System with Direct Torque Control-Pulse with Modulation by A. S. Koval, A. V. Shvayakov

    Published 2008-02-01
    “…In the article problems of frequency properties research for electric drive system with direct torque control and pulse width modulator are described. The mathematical description of elevator is present. Simplified mathematical description of direct torque control - pulse width modulator electric drive system is shown. …”
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    Article
  8. 16708

    Shubnikov–de Haas Oscillations in Semiconductors at the Microwave-Radiation Absorption by G. Gulyamov, U. I. Erkaboev, A. G. Gulyamov

    Published 2019-01-01
    “…Mathematical models for the Shubnikov-de Haas oscillations in semiconductors are obtained at the microwave-radiation absorption and its temperature dependence. …”
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    Article
  9. 16709

    Estimation level of public welfare on the basis of methods of intellectual analysis by S. Kozlovskyi, L. Nikolenko, O. Peresada, O. Pokhyliuk, O. Yatchuk, N. Bolgarova, O. Kulhanik

    Published 2020-07-01
    “…The subject of the study is the instrumental and mathematical aspects of modeling and measuring the public welfare. …”
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    Article
  10. 16710

    Estimation of True Serum Thyroglobulin Concentration Using Simultaneous Measurement of Serum Antithyroglobulin Antibody by Byeong-Cheol Ahn, Won Kee Lee, Shin Young Jeong, Sang-Woo Lee, Jaetae Lee

    Published 2013-01-01
    “…Conclusions. A mathematic equation for estimation of true Tg concentration using measured Tg and TgAb concentration was deduced. …”
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    Article
  11. 16711

    Developing and Selecting A Strategy for Interaction with Stakeholders During the Project Life Cycle in Oil Projects by Raman Rezaei

    Published 2021-02-01
    “…In the last step, the proposed mathematical model was solved using Gamz software, and the interaction strategy with stakeholders was determined. …”
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    Article
  12. 16712

    Graph Theory of Tower Tasks by Andreas M. Hinz

    Published 2012-01-01
    “…The appropriate mathematical model for the problem space of tower transformation tasks is the state graph representing positions of discs or balls and their moves. …”
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    Article
  13. 16713

    Analysis of Self-Oscillatory Movement of Bell Bowl Electric Drive by V. I. Lukovnikov, I. A. Roudchenko, N. V. Samovendiouk

    Published 2008-10-01
    “…Analytical investigation of the mathematical model has been carried out and time diagrams of bell bowl and tongue movement have been constructed.…”
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    Article
  14. 16714

    Thermodynamic analysis of expansion process of screw expander in wet steam area by A. M. Kalashnikov, G. I. Chernov, V. L. Yusha

    Published 2021-12-01
    “…During the study of the expansion process in the area of wet steam in a screw expander, a mathematical model of this process is developed. The mathematical model is verified by comparing the results obtained on its basis with the results obtained by other researchers on an identical object. …”
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    Article
  15. 16715

    A direct relation between bending energy and contact angles for capillary bridges by Millet, Olivier, Gagneux , Gérard

    Published 2023-09-01
    “…The didactic object of these developments on differential geometry of curves and surfaces is to present fine and convenient mathematical strategies, adapted to the study of capillary bridges. …”
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    Article
  16. 16716

    CLOSED-LOOP CONTROL OF OXYGEN-CONVERTER MELTING by V. S. Bogushevsky, S. V. Zhuk, S. G. Melnik, E. N. Zubova

    Published 2013-09-01
    “…The mathematical model of Fe – C-melt decarbonization, with the assistance of the theory of critical concentrations was developed in this work. …”
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    Article
  17. 16717

    Methodology for Calculation of Pressure Impulse Distribution at Gas-Impulse Regeneration of Water Well Filters by V. V. Ivashechkin, V. V. Veremeniouk

    Published 2010-04-01
    “…The proposed calculation methodology developed on the basis of the mathematical model makes it possible to determine pressure in the impulse on a filter wall and at any point of a water well pre-filter zone.…”
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    Article
  18. 16718

    MULTIFREQUENCY PHASE METHOD OF RANGE MEASUREMENTS by O. N. Shinkaruk, V. R. Liubchyk, M. O. Lantvoit

    Published 2015-03-01
    “…The results of the passage of harmonic probing signals in probing the objectives are shown. Obtaining the mathematical model describing the relationship are shown. …”
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    Article
  19. 16719

    Presenting a model for solving lot-streaming hybrid flow shop scheduling problem by considering independent setup time and transportation time by Roja Ruhbakhsh, Esmaeil Mehdizadeh, Mohammad Amin Adibi

    Published 2023-09-01
    “…In this paper, the aim is solving a multi objective mathematical model for solving hybrid flow shop scheduling problem with lot-streaming, setup time and transportation time.Methodology: At first, a multi objective mathematical programming model is presented for solving the problem. …”
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    Article
  20. 16720

    Algorithm of Development for Stabilization of Socio-Ecological Situation in Karakalpakstan by Alisher Abdullaev

    Published 2024-06-01
    “…The parameters of the developed mathematical model and their adequacy are determined. …”
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    Article