Showing 1,601 - 1,620 results of 3,115 for search '"mathematical model"', query time: 0.12s Refine Results
  1. 1601

    Conservation of forest biomass and forest–dependent wildlife population: Uncertainty quantification of the model parameters by Ibrahim, M. Fanuel, Silas, Mirau, Damian, Kajunguri, Francis, Moyo

    Published 2023
    “…In this paper, a non–linear mathematical model to study the conservation of forest and wildlife species that are reliant on forest ecosystem within the framework of human population dynamics and its related activities is developed and analysed. …”
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    Article
  2. 1602

    Conservation of forest biomass and forest–dependent wildlife population: Uncertainty quantification of the model parameters by Fanuel, Ibrahim M., Mirau, Silas, Kajunguri, Damian, Moyo, Francis

    Published 2023
    “…In this paper, a non–linear mathematical model to study the conservation of forest and wildlife species that are reliant on forest ecosystem within the framework of human population dynamics and its related activities is developed and analysed. …”
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  3. 1603

    Experimental Snap Loading of Synthetic Ropes by C.M. Hennessey, N.J. Pearson, R.H. Plaut

    Published 2005-01-01
    “…The effects of the type of rope, drop height, drop weight, whether the rope has been subjected to static precycling, and the number of previous dynamic tests are examined. A mathematical model is proposed for the rope force as a function of the displacement and velocity of the weight.…”
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    Article
  4. 1604

    Stress-Strain Relationships of Fiber Reinforced Phosphogypsum under Uniaxial Compression by Li Zhou, Bo Chen, Yong Huang

    Published 2022-01-01
    “…In addition, according to the test data and the characteristics of stress-strain curves, the stress-strain curve of PG specimens was divided into four parts, and a mathematical model was developed to predict the stress-strain curve of PG specimens. …”
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    Article
  5. 1605

    Analysis of Electromagnetic Interference Effect of the Pulse Interference on the Navigation Receiver by Xin Huang, Yuming Wang, Yazhou Chen

    Published 2022-01-01
    “…Aiming at the problem that satellite navigation signals are easily interfered by the radio frequency (RF) pulse signal, the electromagnetic interference effect of RF pulse on the navigation receiver is studied in this paper. A mathematical model of the pulse interference signal is established, and we choose the bit error rate (BER) as an indicator of the quality of the BDS signal. …”
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    Article
  6. 1606

    Delay equations modeling the effects of phase-specific drugs and immunotherapy on proliferating tumor cells by Maria Vittoria Barbarossa, Christina Kuttler, Jonathan Zinsl

    Published 2012-02-01
    “…In this work we present a mathematical model for tumor growth based on the biology of the cell cycle.For an appropriate description of the effects of phase-specific drugs, it is necessary to look at the cell cycle and itsphases. …”
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  7. 1607

    Finite Time Control for Fractional Order Nonlinear Hydroturbine Governing System via Frequency Distributed Model by Bin Wang, Lin Yin, Shaojie Wang, Shirui Miao, Tantan Du, Chao Zuo

    Published 2016-01-01
    “…This paper studies the application of frequency distributed model for finite time control of a fractional order nonlinear hydroturbine governing system (HGS). Firstly, the mathematical model of HGS with external random disturbances is introduced. …”
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    Article
  8. 1608

    Study on the Structural Design and Control of Modular Magnetic Suction Five-finger Dexterous Hand by Chengjun Si

    Published 2021-03-01
    “…Aiming at the complex control system caused by multiple sensors of the dexterous hand at present, the current feedback control algorithm is proposed, through signal acquisition and post-processing of the motor drive current, the mathematical model of current-rotation angle-fingertip force is established, and the grasping experiment is carried out. …”
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    Article
  9. 1609

    A Bi-Objective Stochastic Model of Locating-Allocating-Routing Relief and Rescue in Disaster Response Conditions: An Accelerated Benders Decomposition by Behrooz Baygan, Ahmad Mehrabian, Mahdi Yousefi Nejad Attari, Mohammad Jafar Doostideilami

    Published 2024-01-01
    “…In this paper, using a scenario-based stochastic planning mathematical model, postdisaster relief is discussed. Also, attention has been paid to the distribution of vital items by using routing. …”
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    Article
  10. 1610

    Global threshold dynamics in an HIV virus model with nonlinear infection rate and distributed invasion and production delays by Zhaohui Yuan, Xingfu Zou

    Published 2012-12-01
    “…We consider a mathematical model that describes the interactions ofthe HIV virus, CD4 cells and CTLs within host, which is amodification of some existing models by incorporating (i) twodistributed kernels reflecting the variance of time for virus toinvade into cells and the variance of time for invaded virions toreproduce within cells; (ii) a nonlinear incidence function $f$ forvirus infections, and (iii) a nonlinear removal rate function $h$for infected cells. …”
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  11. 1611

    Kinematics and Workspace Analysis of 2P3R Robot by Pengpeng Deng, Chunyan Zhang, Zhaolou Gao, Shengwen Zhang, Chuanlin Hu

    Published 2022-01-01
    “…Taking the end-effector into account,the forward kinematics mathematical model of the robot is established by using an improved D-H method and the forward kinematics equation is obtained. …”
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    Article
  12. 1612

    ENERGY ABSORPTION STUDY OF FLEXIBLE ELASTIC DOT MATRIX SUPPORT BASED ON DLP PROCESS by FANG Chuang, JI XiaoGang, DENG Lin, WANG Wei

    Published 2024-02-01
    “…Based on the geometric topology design of the cell structure, the equivalent mechanical model of the cell structure was established by using Timoshenko beam theory to obtain a mathematical model for predicting energy absorption, and the influence of cell geometry and load direction was analyzed in focus. …”
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  13. 1613

    Fuzzy Robust Modification Design of EMU Transmission Gear by Ziqiang Sheng, Yuedong Wang, Xiaoning Bai, Shenxuan Wang

    Published 2021-03-01
    “…On this basis, the fuzzy theory is introduced, the mathematical model of gear modification robust optimization is established based on improved tolerance model, the NSGA-III algorithm is used to find the optimal solution, and the comparison with other modification schemes is completed. …”
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    Article
  14. 1614

    Study on Permeability Improvement Technology by Injecting Air into the Gas Drainage Borehole in Low-Permeability Coal Seam by Li Hui, Guo Chengwei, Sun Yuanfang, Guo Shaoshuai

    Published 2018-01-01
    “…In order to solve the problem, the basic principle about gas drainage drilling for gas injection technology is studied to increase permeability. And the mathematical model is established. Gas is injected into the low-permeability coal seam by numerical simulation. …”
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  15. 1615

    Research on Prediction of Wear Amount in the Gear Transmission Process Under Complex Working Conditions by Tang Aiwu, Chen Tianyou

    Published 2024-01-01
    “…Through in-depth analysis of the gear wear mechanism, a typical gear wear process curve is drawn based on this, the gear transmission friction torque value is calculated, and a mathematical model of the gear wear amount is built; then the known gear state values are input into the construction model, the predicted gear wear amount is obtained, and the prediction of gear wear amount is realized. …”
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  16. 1616

    Design and Analysis of the Tooth Profile of Double Generating-wave Swing-rod Movable Tooth Drive by Yi Yali, Shao Cang, Jin Herong, An Zijun

    Published 2015-01-01
    “…The change law of central wheel curvature radius is illustrated based on the same mathematical model analysis,the non- interference conditions of equidistant teeth profile are given. …”
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  17. 1617

    Modeling and Simulation of a Chemical Vapor Deposition by J. Geiser, M. Arab

    Published 2011-01-01
    “…The contribution of this paper is to derive a multiphysics system of multiple physics problems that includes some assumptions to simplify the complicate process and allows of deriving a computable mathematical model without neglecting the real-life processes. …”
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  18. 1618

    Study on Spacing Threshold of Nonsubmerged Spur Dikes with Alternate Layout by Xiaomeng Cao, Zhenghua Gu, Hongwu Tang

    Published 2013-01-01
    “…This paper investigated the spacing threshold of nonsubmerged spur dikes with alternate layout to classify the impact scale of spur dikes. A mathematical model was built based on standard k-ε model, finite volume method (FVM), and rigid lid assumption and was verified by experimental data. …”
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  19. 1619

    Modified and Simplified Sectional Flexibility of a Cracked Beam by Chih-Shiung Wang, Lin-Tsang Lee

    Published 2012-01-01
    “…The structural model for crack of the beam is considered as a rotational spring which is related to the ratio of crack depth to the beam height, a/h. The mathematical model of this single-edge open crack beam is considered as an Euler-Bernoulli beam. …”
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  20. 1620

    Simulation and Experimental Verification of Barrel Finishing of Spiral Bevel Gears Based on the DEM by Yang Shufeng, Gao Yang, Wang Feng, Li Zhisheng, Yu Wentao, Xu Wenbo

    Published 2022-11-01
    “…A theoretical simulation and an experimental research of an aviation spiral bevel gear is carried out using the parallel spindle type barrel finishing process, a mathematical model of the process motion is established, the formula of cutting speed between abrasive and tooth surface is deduced, and the main factors affecting the result are analyzed; with the help of the Hertz-Mindlin with archard wear model of the EDEM software, the tooth surface wear is simulated; through this process, the surface quality of the disc spiral bevel gear surface is experimentally studied. …”
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    Article