Showing 1,941 - 1,960 results of 3,115 for search '"mathematical models"', query time: 0.08s Refine Results
  1. 1941

    A model of drug resistance with infection by health care workers by Avner Friedman, Najat Ziyadi, Khalid Boushaba

    Published 2010-09-01
    “…In this paper,we introduced a new mathematical model which focuses on theevolution of two bacterial strains, drug-resistant and non-drugresistant, residing within the population of patients and healthcare workers in a hospital. …”
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    Article
  2. 1942

    Research of the Vibration Characteristic in the Operation Process of the Long Distance V-ribbed Belt Drive Drilling Tool Transport System by Yu Qian

    Published 2015-01-01
    “…Aiming at the problems of long distance drilling tool transport system has high manufacturing cost,maintenance difficulty,the V- ribbed belt drive is introduced into the long distance drilling tool transport system,and the system mathematical model is established. The key components of the tensioning device are optimized through optimization design,and the optimization results are verified by the experiment method. …”
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    Article
  3. 1943

    Research on the Supernetwork Equalization Model of Multilayer Attributive Regional Logistics Integration by Jian Xu, Yanna Yin, Xin Wen, Guozhi Lin

    Published 2019-01-01
    “…We built a supernetwork mathematical model of regional logistics integration with multiple layers of attributes. …”
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    Article
  4. 1944

    An Improved Hierarchical Genetic Algorithm for Sheet Cutting Scheduling with Process Constraints by Yunqing Rao, Dezhong Qi, Jinling Li

    Published 2013-01-01
    “…The objective of the cutting scheduling problem is minimizing the weighted completed time. A mathematical model for this problem is presented, an improved hierarchical genetic algorithm (ant colony—hierarchical genetic algorithm) is developed for better solution, and a hierarchical coding method is used based on the characteristics of the problem. …”
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    Article
  5. 1945

    Group Decision-Making Approach without Weighted Aggregation Operators by Min Jiang, Zhiqing Meng, Rui Shen

    Published 2018-01-01
    “…This approach is more suitable for scenarios with infinite number of individuals. A mathematical model approach is established based on the new concept of s⁎-optimal concession equilibrium solution without weighted aggregation operators for group decision-making problems. …”
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    Article
  6. 1946

    A Game-Theoretic Approach for the Robust Daily Aircraft Routing Problem by Bin Deng, Hao Guo, Jingfeng Li, Junfeng Huang, Kaiyi Tang, Weidong Li

    Published 2022-01-01
    “…This paper presents a new robust integer mathematical model based on game theory that considers daily aircraft routing. …”
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    Article
  7. 1947

    Thermal Performance Analysis of Dry Unit of Hybrid Closed Cooling Tower by Ilnur Madyshev, Vitaly Kharkov, Marsel Vakhitov, Maxim Kuznetsov

    Published 2025-01-01
    “…Therefore, this study aimed to propose a hybrid closed cooling tower (CCT) with a fill unit composed of a finned pipe coil and inclined corrugated plates (ICP). A mathematical model of the hot water cooling process in the proposed cooler, operating in dry mode was developed using the number of heat transfer units (NTU). …”
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  8. 1948

    SYSTEM ANALYSIS OF THE FOUR-PRONG LEGGED ACCELEROMETER BASED ON TRAPEZOIDAL VARIABLE CROSS-SECTION BEAM by LU KunLei, SUN JiangHong, YI YuanLin, DU HongChen

    Published 2018-01-01
    “…The trapezoidal variable cross-section beam rigidity-size relation was deduced with a bending mathematical model. The size requirements were raised by strength. …”
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    Article
  9. 1949

    Indexation of Fixed-Income Portfolios to the IMA-B by Emilio Ricardo Carvalhais, Antonio Marcos Duarte Júnior

    Published 2015-01-01
    “…This study considers the problem of indexing fixed-income portfolios to the ANBIMA Market Index – Series B (IMA-B), composed of Brazilian National Treasury Notes – Series B (NTNBs). We propose a mathematical model that minimizes the deviations of the returns of the chosen portfolio in relation to the returns of the index’s theoretical portfolio. …”
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    Article
  10. 1950

    Research of Variable Speed Characteristic of Transmission Mechanism of Rod-Gear Type Pulsation CVT by Chen Suifan, Dong Zhifeng

    Published 2017-01-01
    “…Based on the analysis of transmission mechanism of rod-gear type Pulse Continuously Variable Transmission( P-CVT),the closed vector equations of equivalent plane six-bar mechanism is built,and the kinematic mathematical model of angular displacement,angular velocity and angular acceleration of connecting rod,rocker and meshing point to input shaft axis of single phase transmission mechanism is constructed by the matrix method. …”
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    Article
  11. 1951

    EFFICIENCY OF TRAMP FLEET OPERATING UNDER THE CONTRACTS OF AFFREIGHTMENT by Yuliia KOSKINA, Svitlana ONYSHENKO, Oleksii DROZHZHYN, Oleksii MELNYK

    Published 2023-09-01
    “…This paper presents the mathematical model, based on the fleet and volumes of carriages under a set of contracts of affreightment during the due time. …”
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    Article
  12. 1952

    Study on a New Type of Lelord Triangle Pump by Chen Wenjie, Zou Min, Zhu Hailin, Wang Zhiyang

    Published 2017-01-01
    “…Besides,the pump combined with the characteristics of gear pump and propeller. The mathematical model of lelord triangle is established. The analysis of the motion position of the lelord rotor is carried out,and the displacement and instantaneous flow rate of the internal cavity of the three rotors are calculated. …”
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    Article
  13. 1953

    Deployment strategy for static chargers in WRSN by Hao HE, Yong-rui CHEN, Wei-dong YI, Ming LI

    Published 2017-10-01
    “…The traditional deployment strategy of static chargers in wireless rechargeable sensor networks (WRSN) covers all the area.The basic idea is to cover all the positions of nodes.A mathematical model of distance between a charger and the farthest node was established,the relationship between the number of nodes and the mathematical expectation of minimum radius of charging was analyzed,and deployment strategy for static chargers was proposed.The method based on the locations of all nodes that need to be charged in the area,used the smallest enclosing circle (SEC) algorithm and finds the optimal location of the charger through Euclidean delivery boy algorithm.It will decrease charging radius,reduce the minimum required transmitted power,thereby saving the average charging energy consumption.The experimental results demonstrated that the less the number locations that the nodes existed,the more energy will be saved.…”
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    Article
  14. 1954

    Three-Dimensional Memristive Hindmarsh–Rose Neuron Model with Hidden Coexisting Asymmetric Behaviors by Bocheng Bao, Aihuang Hu, Han Bao, Quan Xu, Mo Chen, Huagan Wu

    Published 2018-01-01
    “…The proposed memristive HR neuron model has no equilibrium point but can show hidden dynamical behaviors of coexisting asymmetric attractors, which has not been reported in the previous references for the HR neuron model. Mathematical model based numerical simulations for hidden coexisting asymmetric attractors are performed by bifurcation analyses, phase portraits, attraction basins, and dynamical maps, which just demonstrate the occurrence of complex dynamical behaviors of electrical activities in neuron with electromagnetic induction. …”
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    Article
  15. 1955

    Three-Dimensional Shock Spectrum of Critical Component for Nonlinear Packaging System by Jun Wang, Zhi-Wei Wang, Li-Xin Lu, Yong Zhu, Yong-Guang Wang

    Published 2011-01-01
    “…Three key coordinate parameters, such as the nondimensional pulse duration, the frequency parameter ratio and the ratio of the maximum response acceleration to the peak pulse acceleration, were governed in a novel dynamical mathematical model. It is shown that the shock response of critical component is weakened owning to the decrease in the defined system parameter. …”
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    Article
  16. 1956

    Modeling and Simulation in Engineering Modeling of the Electrocoagulation Processes in Nonisothermal Conditions by Andrii Safonyk, Olena Prysiazhniuk

    Published 2019-01-01
    “…The influence of current strength on the concentration of the target component at the exit from the reactor was investigated using the developed mathematical model. In addition, our findings also show the effect of the rate of heat formation from the electrodes on the efficiency of obtaining of coagulant.…”
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  17. 1957

    Study of Magnetohydrodynamic Pulsatile Blood Flow through an Inclined Porous Cylindrical Tube with Generalized Time-Nonlocal Shear Stress by Nehad Ali Shah, A. Al-Zubaidi, S. Saleem

    Published 2021-01-01
    “…The fractional calculus technique is used to provide a mathematical model of blood flow with fractional derivatives. …”
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    Article
  18. 1958

    Dynamics of a plant-herbivore model with toxin-induced functional response by Ya Li, Z. Feng

    Published 2009-12-01
    “…In thispaper, a mathematical model for plant-herbivore interactionsmediated by toxin-determined functional response is studied. …”
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    Article
  19. 1959

    Stability Analysis of Pneumatic Cabin Pressure Regulating System with Complex Nonlinear Characteristics by Xinhua Zheng, Lili Xie, Lizhuo Liu

    Published 2015-01-01
    “…Stability of pneumatic cabin pressure regulating system with complex nonlinear characteristics is considered. The mathematical model of each component is obtained and given in detail. …”
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    Article
  20. 1960

    VECTOR DATA DIFFERENCES IDENTIFICATION IN THE THEMATIC PROCESSING OF SPACE IMAGES by A. A. Zalatoi, A. V. Urbanovich

    Published 2017-08-01
    “…Research and development is done by mathematical modeling of the task in MATLAB. The article provides developed method for solving the task and results of its application for finding differences between two vector data packages, obtained from the target information of remote sensing of the Earth, and/or vector layers of digital district map. …”
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