Showing 2,041 - 2,060 results of 3,115 for search '"mathematical models"', query time: 0.05s Refine Results
  1. 2041

    Weighted Multimodel Predictive Function Control for Automatic Train Operation System by Shuhuan Wen, Jingwei Yang, Ahmad B. Rad, Shengyong Chen, Pengcheng Hao

    Published 2014-01-01
    “…Train operation is a complex nonlinear process; it is difficult to establish accurate mathematical model. In this paper, we design ATO speed controller based on the input and output data of the train operation. …”
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    Article
  2. 2042

    Lightweight Design and Production Practice of the Heavy Truck Drive Axle by Yan Xiaolou, Qiu Yang, Li Youli

    Published 2023-06-01
    “…Using the systematic layout thinking, the mathematical model is scientifically built, a complete lightweight design axle is formed through CAE simulation analysis and CAM collaborative production, and the prototype test is conducted. …”
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    Article
  3. 2043

    NONLINEAR OVERVOLTAGE LIMITER APPLICATION FOR INTERNAL OVER-VOLTAGE PROTECTION IN AVERAGE VOLTAGE NETWORKS by A. N. Bokhan, V. V. Krotenok

    Published 2005-12-01
    “…The main peculiar feature of the model is an account of m-lag time constant.A mathematical modeling of transitional processes in distribution networks with NOL has been made.Over-voltages in the calculative experiment at arcing ground for load diagram have accounted for 3.2 Uf, that corresponds to the results of field tests.…”
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  4. 2044

    Dynamics of gas bubbles under acoustic excitation by I.A. Aganin, A.I. Davletshin

    Published 2018-09-01
    “…The dependencies of the dynamics of the bubbles on the distance between them, their total gas mass, and wave amplitude have been studied for different bubble size ratios under a fixed total gas mass. A mathematical model taking into account the small nonsphericity of the bubbles, liquid viscosity, and compressibility has been used. …”
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    Article
  5. 2045

    Design and Research of a Variable Ratio Transmission Mechanism of Electric Power Steering System by Xueyun Li, Shuang Liang

    Published 2020-11-01
    “…Finally, the improved scheme is analyzed by establishing mathematical model, and the physical consumption of driver is calculated. …”
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  6. 2046

    Sliding Mode Output Feedback Control of a Flexible Rotor Supported by Magnetic Bearings by A. S. Lewis, A. Sinha, K. W. Wang

    Published 2001-01-01
    “…It is assumed that the number of states is greater than the number of sensors. A mathematical model of the rotor]magnetic bearing system is presented in terms of partial differential equations. …”
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  7. 2047

    Modeling and control design of a bronchoscope robotics system by Yuhua Song, Lifeng Zhu, Jinfeng Li, Cheng Wang, Aiguo Song

    Published 2024-06-01
    “…To achieve precise control of the system, the mathematical model is established at first. The system mainly consists of an inserting tube and a tube tip, which are modeled based on a moving flexible beam and a soft robot, respectively. …”
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  8. 2048

    Oscillator with a Sum of Noninteger-Order Nonlinearities by L. Cveticanin, T. Pogány

    Published 2012-01-01
    “…Free and self-excited vibrations of conservative oscillators with polynomial nonlinearity are considered. Mathematical model of the system is a second-order differential equation with a nonlinearity of polynomial type, whose terms are of integer and/or noninteger order. …”
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  9. 2049

    DESIGN AND INTENSITY ANALYSIS OF PORTABLE ADVERTISEMENT CLEANING MACHINE by LI Hao, GE YanYan, TIAN ChenYao, LIU HaiMa, ZHU WenJie, XIAO MaoHua

    Published 2016-01-01
    “…Driven by electricity,the brush rotates at the speed of 3000 r / min.The static method is used to analyze the stress of the brush and the guide rod,the mathematical model of brush is established,and the optimum solution of brush size and motor power is obtained by using MATLAB. the three-dimensional solid model of the cleaning machine is established by pro / E,static and modal analysis of brush are completed using ANSYS. …”
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    Article
  10. 2050

    Preface for the special issue of Mathematical Biosciences and Engineering, BIOCOMP 2012 by Aniello Buonocore, Antonio Di Crescenzo, Alan Hastings

    Published 2013-09-01
    “…The International Conference ``BIOCOMP2012 - Mathematical Modeling and Computational Topics in Biosciences'',was held in Vietri sul Mare (Italy), June 4-8, 2012. …”
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    Article
  11. 2051

    Analysis of the Instability Phenomena Caused by Steam in High-Pressure Turbines by Paolo Pennacchi, Andrea Vania

    Published 2011-01-01
    “…As a consequence, the eigenvalues and eigenmodes of the mathematical model of the machine change. The real part of the eigenvalue associated with the first flexural normal mode of the turbine shaft may become positive causing the conditions for unstable vibrations. …”
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  12. 2052

    Modeling the dynamics of two-factor socio-economic states through mappings close to extension by V. V. Egorov

    Published 2022-09-01
    “…A new way of developing a mathematical model of the dynamics of the factors forming the considered social, political, economic, ecological or other space of life activity of society, depending on local changes in parameters affecting these factors, is presented. …”
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  13. 2053

    Design and Analysis of Electric Power-assisted Variable Transmission Ratio Steering System for Sweeper by Dandan Chen, Zhijian Su, Yuzhuang Guo

    Published 2020-09-01
    “…Taking the electric power steering system of a certain model as an example, the transmission scheme of the steering gear used by the vehicle and the change of the output torque of the motor are studied. The mathematical model of the steering system is established, and the variable transmission ratio design parameters of rack and pinion are determined in combination with the operating conditions of the cleaning vehicle, and the calculation and contrastive analysis are carried out, the improvement effect of the scheme is verified. …”
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  14. 2054

    Improving the technical and operational characteristics of the railway carriage by Maryna Bulakh

    Published 2025-01-01
    “…It primarily focuses on reducing the weight of the railway carriage by modifying the supporting floor, which improves energy efficiency and performance. Mathematical modeling and strength calculations have demonstrated that the modified supporting floor can significantly reduce maximum equivalent stresses, thereby ensuring the reliability and safety of the structure. …”
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  15. 2055

    Control of Limit Cycle Oscillation in a Three Degrees of Freedom Airfoil Section Using Fuzzy Takagi-Sugeno Modeling by Douglas Domingues Bueno, Luiz Carlos Sandoval Góes, Paulo José Paupitz Gonçalves

    Published 2014-01-01
    “…The proposed methodology is developed for the three degrees of freedom typical section airfoil considering aerodynamic forces from Theodorsen’s theory. The mathematical model is written in the state space representation using rational function approximation to write the aerodynamic forces in time domain. …”
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  16. 2056

    SAPA-based approach for defending DoS attacks in cloud computing by Meng YUE, Kun LI, Zhi-jun WU

    Published 2017-04-01
    “…Denial of service (DoS) attack was one of the major threats to cloud computing.Security access path algorithm (SAPA) used node route table (NRT) to compose security access path.It simplified role nodes of traditional secure overlay services (SOS),and periodically updated role nodes,and cached security access paths.Therefore,SAPA was more appropriate for cloud computing to defend DoS attacks.Based on the turn routing architecture of cloud computing,the mathematical model of SAPA was built and its performance was analyzed in theory.The performance of SAPA was tested in OMNeT++ experimental platform.Also,the Test-bed experiments were performed to evaluate the effectiveness of SAPA for defending DoS attack.Experimental results show that comparing with SOS,SAPA can degrade the impact of communication success rate caused by DoS attack effectively,and guarantees the access delay small enough.…”
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  17. 2057

    Research on full-field optical coherence tomography by Ning MU, Wan-rong GAO, Zhe-qiang WEI

    Published 2017-12-01
    “…Full-field optical coherence tomography(FFOCT)was used for imaging the interior part of an object.Firstly,the mathematical modeling and performance analysis of the FFOCT system mounted was provided.Secondly,images of several different human tissues were obtained by FFOCT system,including esophagus,uterus,etc.The images of different depths of the same tissue were shown and compared.It was the first time in China that FFOCT was used for generating depth images on human esophagus and uterus;high-resolution images had been obtained for different depths without cutting the tissue sample,in which intercellular substance and myofibril structure could be clearly identified.As the in-depth structure could be imaged without the process needed for frozen and paraffin sectioning methods,the technology could been highly valuable for early cancer diagnosis and pathological analysis in tumor research.…”
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  18. 2058

    METHOD FOR MODIFYING PROFILE OF CYCLOIDAL WHEEL CONSIDERING COMPENSATION FOR ELASTIC DEFORMATION by QIN ZhengZheng, WANG Quan, ZHAO DaXing, WANG Jun, ZENG LiLei

    Published 2020-01-01
    “…The coordinate transformation principle was used to fit the profile of the cycloid after elastic deformation,and the theoretical calculation of the contact force of the cycloid tooth surface was carried out. And the mathematical model of the profile modification of the cycloid with elastic deformation characteristics was established,which was solved by genetic algorithm and compared with the modification method without considering elastic deformation.The results show that compared with the modification method without considering elastic deformation,the fitting degree of the actual working tooth profile and the angle modification tooth profile is improved to 1. 52 times,and the contact force of the tooth surface is reduced to8. 27%,thus verifying the rationality and feasibility of the method.…”
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  19. 2059

    Analysis of Thermal Elastohydronamic Lubrication of Inclined Double-roller Enveloping Hourglass Worm Drive by Ou Yue, Li Jinkuan, Zhu Yan, Liu Zaixin, Liao Honghui

    Published 2018-01-01
    “…According to the line contact mathematical model with Ree-Eyring fluid,the distribution of the minimum film thickness of EHL and thermal EHL( TEHL) are analyzed. …”
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  20. 2060

    The replicability of oncolytic virus: Defining conditions in tumor virotherapy by Jianjun Paul Tian

    Published 2011-05-01
    “…This article analyzes a basic mathematical model that includes burst size for oncolyticvirotherapy. …”
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