Showing 2,021 - 2,040 results of 3,115 for search '"mathematical models"', query time: 0.08s Refine Results
  1. 2021

    Recoil and Vibration in an Archery Bow Equipped with a Multi-Rod Stabilizer by Igor Zaniewski

    Published 2012-01-01
    “…The aim of this research is to create a mechanical and mathematical model of a multi-rod stabilizer for the sport archery bow and to analyze its capability to damp disagreeable recoil and vibration of the bow during internal ballistic motion. …”
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    Article
  2. 2022

    The Neimark–Sacker Bifurcation and Global Stability of Perturbation of Sigmoid Beverton–Holt Difference Equation by M. R. S. Kulenović, Connor O’Loughlin, E. Pilav

    Published 2021-01-01
    “…This difference equation is one of the perturbations of the sigmoid Beverton–Holt difference equation, which is a major mathematical model in population dynamics. We will show that this difference equation exhibits transcritical and Neimark–Sacker bifurcations but not flip (period-doubling) bifurcation since this difference equation cannot have period-two solutions. …”
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    Article
  3. 2023

    Mean Deviation Coupling Control for Multimotor System via Global Fast Terminal Sliding Mode Control by Changlin Zhu, Qunzhang Tu, Chengming Jiang, Ming Pan, Hao Huang, Zhiwen Tu

    Published 2021-01-01
    “…In view of the shortcomings of the existing multimotor synchronous control strategy, a new method of mean deviation coupling control for multimotor system via global fast terminal sliding mode control is proposed. Firstly, the mathematical model of permanent magnet synchronous motor (PMSM) under a d-q reference frame is established. …”
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    Article
  4. 2024

    TRANSIENT MOTION SIMULATION AND STRESS ANALYSIS OF RECIPROCATING COMPRESSOR VALVE by WANG Yao, ZHANG JinJie, LIU JinNan, YAO ZiYun, JIANG ZhiNong

    Published 2016-01-01
    “…Reciprocating compressor has many moving and damageable parts in which valve is the most frequently damaged component. A mathematical model of the valve movement was established according to its structure and motion characteristics.MATLAB and ANSYS software were used to study the transient motion law and the dynamic stress distribution of mesh valve.Then the impact of spring stiffness and transition arc on valve’s stress distribution was discussed. …”
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    Article
  5. 2025

    A frictionless contact problem for viscoelastic materials by Mikäel Barboteu, Weimin Han, Mircea Sofonea

    Published 2002-01-01
    “…We consider a mathematical model which describes the contact between a deformable body and an obstacle, the so-called foundation. …”
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  6. 2026

    3D Modeling Method and Strength Analysis of ZC<sub>1</sub> Worm by Jin Xiaoma, Ji Weixi

    Published 2016-01-01
    “…Based on the activity price method and the space engagement theory,the forming process of the ZC. 1 grinding wheel and the mathematical model of the worm pair are researched. Based on the numerical analysis method and finite element method,the 3D solid model of worm pair is completed by Solid Works and MATLAB,and the finite element model is established in ANSYS. …”
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    Article
  7. 2027

    Analytical Techniques for Studying Fractional-Order Jaulent–Miodek System Within Algebraic Context by Yousuf Alkhezi, Ahmad Shafee

    Published 2025-01-01
    “…The proposed study seeks to investigate various analytical and numerical techniques for solving fractional differential equations, with a particular focus on their applications in mathematical modeling and scientific research within the field of algebra. …”
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    Article
  8. 2028

    A Polling-Based Dynamic Order-Picking System considering Priority Orders by Wenxue Ran, Sen Liu, Zhe Zhang

    Published 2020-01-01
    “…We divide orders into priority and common categories according to their time urgency. A mathematical model is established for such a system by applying polling theory, a probability generating function, and an embedded Markov chain. …”
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    Article
  9. 2029

    Research on Meshing Simulation Analysis Method for Complex Flanks Based on Surface Synthesis Method by Li Jiaqi, Guo Yuliang, Wei Bingyang, Cao Xuemei

    Published 2022-11-01
    “…According to the space meshing theory, the mathematics model of conjugate surfaces is constructed. …”
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    Article
  10. 2030

    Modeling and simulation of meteor burst channel by Bing XIA, Linlin LI, Yanshan ZHENG

    Published 2016-09-01
    “…In the test of the actual performance of communication device and software based on meteor burst,a model of meteor burst communication channel was established to solve the complexity of channel and difficulty of measurement.By analyzing the mathematic models of meteor burst channel,single underdense meteor trail channel and single overdense meteor trial channel were modeled as basis.Underdense meteor cluster and multipath channel were proposed to built a hybrid model based on probability principles.Combining with meteor arrival interval model,the simulation of meteor burst channel was realized by C++ programming tool.The simulation result can provide underdense meteor trail,overdense meteor trial,underdense meteor cluster and multipath channel.It indicates that the characteristics of the meteor burst channel model are basically matched with those of real channel.The result verifies usability and justifiability of the model.…”
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  11. 2031

    On the decay of strength in Guilin red clay with cracks by Yi Li, Keneng Zhang, Baochen Liu, Zongyuan Pan

    Published 2015-10-01
    “…In order to research the effect of cracks in red clay on shear strength through dry-wet cycle test, the experimenters used imaging software and a mathematical model to determine fractal dimension and crack ratio of surface cracks in red clay in Guilin, China. …”
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  12. 2032

    Dynamic Recrystallization and Recovery Behaviors in Austenite of a Novel Fe-1.93Mn-0.07Ni-1.96Cr-0.35Mo Ultrahigh Strength Steel by Yongli Chen, Yuhua Li, Xuejiao Zhou, Yueyue Jiang, Fei Tan

    Published 2021-01-01
    “…In this work, the effect of deformation parameters on dynamic recrystallization (DRX) and dynamic recovery (DRV) is discussed through stress-strain analysis, the DRV mathematical model is obtained, and then the dynamic recrystallization activation energy, Zener–Hollomon equation, and hot working equation are obtained. …”
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    Article
  13. 2033

    Dynamical analysis for a hepatitis B transmission model with immigration and infection age by Suxia Zhang, Hongbin Guo, Robert Smith?

    Published 2018-11-01
    “…We investigate the effect of immigration and infection age on HBV transmission dynamics, incorporating age-dependent immigration flow and vertical transmission. The mathematical model can be used to describe HBV transmission in highly endemic regions with vertical transmission and migration of infected HBV individuals. …”
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    Article
  14. 2034

    On optimal chemotherapy with a strongly targeted agent for a model of tumor-immune system interactions with generalized logistic growth by Urszula Ledzewicz, Omeiza Olumoye, Heinz Schättler

    Published 2013-03-01
    “…In this paper, a mathematical model for chemotherapy that takestumor immune-system interactions into account is considered for astrongly targeted agent. …”
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  15. 2035

    A Heuristic Genetic Algorithm for Regional Targets’ Small Satellite Image Downlink Scheduling Problem by Yan-Jie Song, Zhong-Shan Zhang, Kai Sun, Feng Yao, Ying-Wu Chen

    Published 2019-01-01
    “…In this paper, regional targets are considered with SSIDSP. We propose a mathematical model that maximizes profit by considering time value and regional targets. …”
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  16. 2036

    Kinematics Research and Simulation Analysis of Parallel Mechanism Embossing Machine by Zhanxian Li, Jianli Xu, Jinfeng Huang

    Published 2019-04-01
    “…The kinematics mathematical model of the parallel mechanism embossing machine is established and the analytical form of the kinematics forward and inverse solutions is deduced to obtain its position, velocity and acceleration. …”
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  17. 2037

    The role of feedback in the formation of morphogen territories by David Iron, Adeela Syed, Heidi Theisen, Tamas Lukacsovich, Mehrangiz Naghibi, Lawrence J. Marsh, Frederic Y. M. Wan, Qing Nie

    Published 2008-02-01
    “…In this paper, we consider a mathematical model for the forma-tion of spatial morphogen territories of two key morphogens: Wingless (Wg)and Decapentaplegic (DPP), involved in leg development of Drosophila. …”
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  18. 2038

    Scientific Activity and Contribution of Voldemārs Dāle (1922–2008), Honorary Doctor of the Latvian Academy of Sciences, to the Development of Power Engineering by Austra Avotiņa

    Published 2023-10-01
    “…The main areas of his scientific work include planning and forecasting methods of power system development; research on development problems of the Latvian and Baltic energy systems; methods of mathematical modelling of power systems considering the environmental factors. …”
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  19. 2039

    Resonance Effect Decrease and Accuracy Increase of Piezoelectric Accelerometer Measurement by Appropriate Choice of Frequency Range by Zine Ghemari, Saad Salah, Rabah Bourenane

    Published 2018-01-01
    “…A suitable piezoelectric accelerometer mathematical model is proposed to extract a relationship of motion relative frequency as a function of natural frequency. …”
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  20. 2040

    Design and Simulation of Reset Mechanism of Self-centering Center Rest for Grinding Machine by Yongqiang Zhao, Ruichao Li, Hongling Hou, Changqian Wang, Fei Wang, Haixia Du

    Published 2019-07-01
    “…The correctness of the mathematical model of the reset plate and the feasibility of the design method are verified by using the collaborative virtual simulation functions of MATLAB, UG and Adams software.…”
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