Showing 961 - 980 results of 3,115 for search '"mathematical models"', query time: 0.07s Refine Results
  1. 961

    Optimisation of parameters of vibration control process by applying rheological dynamic model by Rimantas Didžgalvis, Antanas Sudintas, Irena Tiknevičienė

    Published 2001-12-01
    “…The summarised dynamic and mathematical models of the vibration cont­rol are presented. …”
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    Article
  2. 962

    Explicit Expression for Arbitrary Positive Integer Powers of Special Sparse Matrices by Mohammad Beiranvand, Mojtaba Ghasemi Kamalvand

    Published 2022-01-01
    “…Sparse matrices appear frequently in mathematical models. In this paper, we firstly present a general expression for the entries of the r th r∈ℕ power of a certain n-square sparse matrix, in terms of the Chebyshev polynomials of the second kind. …”
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    Article
  3. 963

    Species survival versus eigenvalues by Luiz Antonio Ribeiro de Santana, Yuri Dimitrov Bozhkov, Wilson Castro Ferreira

    Published 2004-01-01
    “…Mathematical models describing the behavior of hypothetical species in spatially heterogeneous environments are discussed and analyzed using the fibering method devised and developed by S. …”
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    Article
  4. 964

    Implicações da resolução do MDT na modelagem de instabilidade de vertentes by Tiago D. Martins, Bianca Carvalho Vieira., José Eduardo Bonini., Carlos Bateira

    Published 2020-09-01
    “…The mathematical models physically based are important tools to indicate potentially unstable areas using geotechnical and topographic information. …”
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    Article
  5. 965

    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
  6. 966

    Decoding mpox: a systematic review and meta-analysis of the transmission and severity parameters of the 2022–2023 global outbreak by Adriana Buitrago-Lopez, Zulma M Cucunubá, Candida Diaz Brochero, Laura Cristina Nocua-Báez, Jorge Alberto Cortes, Kelly Charniga

    Published 2025-01-01
    “…Our results contribute to a better understanding of mpox dynamics, and the development of mathematical models to assess the impact of current and future interventions.…”
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    Article
  7. 967

    Foundations of radar synthesis theory of phantom objects formation in SAR images by Volodymyr Pavlikov, Simeon Zhyla, Pavlo Pozdniakov, Denys Kolesnikov, Hlib Cherepnin, Olexandr Shmatko, Oleksii Odokiienko, Pavlo Malashta, Eduard Tserne

    Published 2024-11-01
    “…The results obtained are the foundation for further research, which should be directed toward the development of mathematical models of the aerospace remote sensing system orbits, spatial and temporal signals emitted by the remote sensing radio systems from aerospace carriers, and formalization of the features of the underlying surface in the “SAR-PhR” system.…”
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    Article
  8. 968

    Two-level cache based streaming media scheduling algorithm for mobile network by LIAO Jian-xin, YANG Bo, ZHU Xiao-min, WANG Chun

    Published 2007-01-01
    “…A novel caching system architecture for mobile streaming was proposed,which was named 2CMSA(two-level cache mobile streaming architecture).In this system,limitations for mobile streaming system such as small memory size in mobile terminal and low bandwidth in wireless access network were avoided.According to the 2CMSA,a scheduling algorithm of 2CMSS(two-level cache based mobile streaming scheduling) was designed;mathematical models were also achieved to analyze the performance of this scheduling algorithm.Simulation experiment proves that,comparing to the original mobile streaming system,by using the new two-level cache architecture and cache based scheduling algorithm,the network transmission cost and the client startup delay of the mobile streaming services can be decreased effectively.…”
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    Article
  9. 969

    On the Connectivity of Wireless Network Systems and an Application in Teacher-Student Interactive Platforms by Xun Ge

    Published 2014-01-01
    “…To investigate the connectivity of wireless network systems, this paper takes covering approximation spaces as mathematical models of wireless network systems. With the help of covering approximation operators, this paper characterizes the connectivity of covering approximation spaces by their definable subsets. …”
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  10. 970

    Medical Management of Chronic Cholestatic Liver Diseases by Andrea A Gossard, Keith D Lindor

    Published 2000-01-01
    “…The prognosis of patients with these diseases is discussed, and the Mayo Mathematical Models in Cholestatic Liver Disease for both primary biliary cirrhosis and primary sclerosing cholangitis are provided. …”
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    Article
  11. 971

    The effect of room temperature pre-ageing on tensile and electrical properties of thermomechanically treated Al-Mg-Si alloy by Martinova Z., Damgaliev D., Hirsh M.

    Published 2002-01-01
    “…The experimental data were proceeded statistically and mathematical models were derived for the alloy properties such as tensile strength, electrical conductivity and elongation of the wires during TMT. …”
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  12. 972

    Dynamic system evolution and markov chain approximation by Roderick V. Nicholas Melnik

    Published 1998-01-01
    “…In this paper computational aspects of the mathematical modelling of dynamic system evolution have been considered as a problem in information theory. …”
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  13. 973

    APPLICATION OF HARMONIC FUNCTION’S THEORY IN TWO-DIMENSION OPTIMIZATION PROBLEM by ZHANG Jing, SHI WenPu

    Published 2018-01-01
    “…The mathematical models of many engineering problems can often come down to two-dimensional optimization problems,it has been one of the hot issues of seeking the high effective and precision optimizing method.The characteristics of harmonic function and Green theory were used to study the relations between the values of harmonic function and its boundary values,and demonstrate the non-locality of its extreme value.When the objective function of the optimization is harmonic function,the two-dimensional optimization can be simplified as a one-dimensional optimization on the boundary of its feasible region.At last,three examples were given to show the feasibility of the method here.The research ideas and the conclusions can be generalized to the solution of the three-dimensional optimization problems.…”
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    Article
  14. 974

    INTERVAL ESTIMATION OF THE VOLUMES OF RESOURCE CONSUMPTION AT THE STOCHASTIC BASIC DATA by Y. Gagarin, S. Gagarina

    Published 2018-12-01
    “…The necessity of taking into account errors in the values of functions and arguments when estimating the parameters of mathematical models is shown. To take into account the random nature of the initial information when estimating the parameters of the models, it is proposed to use methods of confluent analysis. …”
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  15. 975

    Vibrational Diagnostics of Rotating Machinery Malfunctions by Agnes Muszynska

    Published 1995-01-01
    “…After presenting basic principles of machinery diagnostics, several specific malfunction symptoms supported by simple mathematical models are given. These malfunctions include unbalance, excessive radial load, rotor-to-stator rubbing, fluid-induced vibrations, loose stationary and rotating parts, coupled torsional/lateral vibration excitation, and rotor cracking. …”
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    Article
  16. 976

    A FJSSP Method Based on Dynamic Multi-Objective Squirrel Search Algorithm by Yanjiao Wang, Jieru Han

    Published 2021-01-01
    “…Compared with other mathematical models, the mathematical model established in this paper can keep better balance between the efficiency and stability.…”
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    Article
  17. 977

    Optimized Design of a Wedge-type Overrunning Clutch Structural Parameter by Wang Honglin, Su Yi, Guo Xiancheng, Chen Yuanwen, Huang Shuai

    Published 2015-01-01
    “…According to the requirements of overrunning coupler to the floating micro wave power generating device,the friction loss rate of wedge- type overrunning clutch at overrunning states is analyzed and the parameters mathematical models of the wedge- type overrunning clutch are built. …”
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  18. 978

    Study on Tooth Profile Parameter of Gear Skiving Under the Influence of Multiple Factor by Zhongliang Qiu, Siming Wang

    Published 2020-11-01
    “…Finally, on the basis of the mathematical model, the influence of the rotational speed of tool and workpiece, tool feeding speed, helix angle of the tool and shaft angle on tooth profile deviation and tooth profile runtout are analyzed. …”
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  19. 979

    THE PREDICTION OF ENTERPRISES ACTIVITY INDICATORS TAKING INTO ACCOUNT THE INITIAL DATA UNCERTAINTY by Yu. Gagarin, S. Gagarina

    Published 2019-03-01
    “…To obtain point and interval estimates of the parameters of mathematical models that take into account errors in the values of the function and argument, the use methods of confluent analysis has been proposed. …”
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    Article
  20. 980

    Sociological phenomena as multiple nonlinearities: MTBI's new metaphor for complex human interactions by Christopher M. Kribs-Zaleta

    Published 2013-07-01
    “…Mathematical models are well-established as metaphors for biological and epidemiological systems. …”
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