Showing 1,421 - 1,440 results of 2,218 for search '"mathematical models"', query time: 0.06s Refine Results
  1. 1421

    Modelling In Vivo HIV Dynamics under Combined Antiretroviral Treatment by B. Mobisa, G. O. Lawi, J. K. Nthiiri

    Published 2018-01-01
    “…In this paper a within host mathematical model for Human Immunodeficiency Virus (HIV) transmission incorporating treatment is formulated. …”
    Get full text
    Article
  2. 1422

    Analytical Solution of Tidal Loading Effect in a Submarine Leaky Confined Aquifer System by Zongzhong Song, Hailong Li, Qian Ma, Chunmiao Zheng, Jiu Jimmy Jiao, Shaohong Li

    Published 2019-01-01
    “…A one-dimensional mathematical model is established to describe the problem, and the analytical solution is derived. …”
    Get full text
    Article
  3. 1423

    Nonlinear Dynamics and Chaos in Systems with Discontinuous Support by Sandor Divenyi, Marcelo Amorim Savi, Luiz Fernando Penna Franca, Hans Ingo Weber

    Published 2006-01-01
    “…Since the time scale of this transition is much smaller than the scale of the individual modes dynamics, its mathematical modeling can be lead as non-smooth. This contribution uses a smoothened switch model to analyze non-smooth systems. …”
    Get full text
    Article
  4. 1424

    Analysis of the state of the gas market in the context of the aggravation of the Ukrainian crisis by E. A. Rechkina, A. M. Terekhov

    Published 2023-05-01
    “…Based on the results of the study, a development forecast of the natural gas market was made founded on the constructed economic and mathematical model, which showed an increase in prices in the next few months. …”
    Get full text
    Article
  5. 1425

    Hopf Bifurcation on a Cancer Therapy Model by Oncolytic Virus Involving the Malignancy Effect and Therapeutic Efficacy by F. Adi-Kusumo, L. Aryati, S. Risdayati, S. Norhidayah

    Published 2020-01-01
    “…We introduce a mathematical model that shows the interaction dynamics between the uninfected and the infected cancer cell populations with oncolytic viruses for the benign and the malignant cancer cases. …”
    Get full text
    Article
  6. 1426

    Intra-Skip in Inter-Frame Coding of H.264/AVC by Hui Su

    Published 2009-01-01
    “…Aiming at intra-skip, this paper proposes a novel mathematical model for intra-skip in inter-frame coding to alleviate the complexity of the process; the model provides remarkable performance increment by cutting down encoding time while accompanying very minor bitrate increase. …”
    Get full text
    Article
  7. 1427

    Effect of Couple-Stress on Peristaltic Transport of Sutterby Fluid in an Asymmetric Channel by Asmaa Mohammed, Liqaa Zeki Hummady

    Published 2025-01-01
    “…In the presence of rotation and couple–stress, mathematical modeling is developed using constitutive equations based on the model of Sutterby fluid. …”
    Get full text
    Article
  8. 1428

    Newsboy problem with outsourcing, limited capacity and resalable return by Arezoo Khazaei, Parvaneh Samouei

    Published 2023-09-01
    “…In this article has tried, in order to make the problem more in line with the real world some limitations during production, such as outsourcing mode, capacity limit and returned goods, have been added to the problem.Methodology: This research is based on library studies and the development of mathematical modeling.Findings: In the newsboy problem, there are important parameters such as outsourcing, capacity constraints and product referral which in this study, the effect of each of these parameters on profitability has been evaluated.Originality/Value: Development of the newsboy problem in terms of outsourcing and returned products and capacity constraints.…”
    Get full text
    Article
  9. 1429

    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. …”
    Get full text
    Article
  10. 1430

    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. …”
    Get full text
    Article
  11. 1431

    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. …”
    Get full text
    Article
  12. 1432

    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. …”
    Get full text
    Article
  13. 1433

    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. …”
    Get full text
    Article
  14. 1434

    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). …”
    Get full text
    Article
  15. 1435

    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. …”
    Get full text
    Article
  16. 1436

    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. …”
    Get full text
    Article
  17. 1437

    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. …”
    Get full text
    Article
  18. 1438

    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.…”
    Get full text
    Article
  19. 1439

    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. …”
    Get full text
    Article
  20. 1440

    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. …”
    Get full text
    Article