Showing 2,061 - 2,080 results of 2,218 for search '"mathematical models"', query time: 0.07s Refine Results
  1. 2061

    Modeling of magnetic vestibular stimulation experienced during high-field clinical MRI by Ismael Arán-Tapia, Vicente Pérez-Muñuzuri, Alberto P. Muñuzuri, Andrés Soto-Varela, Jorge Otero-Millan, Dale C. Roberts, Bryan K. Ward

    Published 2025-01-01
    “…Methods We developed a mathematical model integrating computational fluid dynamics, fluid-structure interaction solvers, and magnetohydrodynamic equations to simulate the biomechanical response of the cristae ampullares. …”
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    Article
  2. 2062

    Modelling and analysis of selected platform dynamics issues of a land robot by Zbigniew Dziopa, Andrzej Zuska, Dariusz Więckowski

    Published 2024-12-01
    “…In order to carry out the tasks set, a physical and mathematical model of the platform was developed. The energy method was used to derive the analytical relationships, which requires the determination of the kinetic energy, the potential energy, the dissipative Rayleigh function and external non-potential forces. …”
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    Article
  3. 2063

    ANALYTICAL SYNTHESIS OF FORCED PULSE ELECTRONIC DRIVE CONTROL OF A TRACKING SYSTEM by A. S. Abufanas, A. A. Lobaty, Y. F. Yacina

    Published 2018-02-01
    “…Expressions are obtained for the matrix of transitions of the system and the control signal in a vector form.As an example, the electric drive described by the widespread second-order mathematical model is considered to evaluate the efficiency of the proposed method. …”
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    Article
  4. 2064

    Competitiveness of Solar and Wind Power Plants in the Countries of the Commonwealth of Independent States by O. V. Marchenko, S. V. Solomin

    Published 2020-08-01
    “…With such values, they can be competitive without additional measures to stimulate their implementation. Using the mathematical model REM-2 (Renewable Energy Model), energy sources of different types were compared taking into account system effects. …”
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    Article
  5. 2065

    Mathematical Analysis of the Transmission Dynamics of Skin Cancer Caused by UV Radiation by Tahera Parvin, Md. Haider Ali Biswas, Bimal Kumar Datta

    Published 2022-01-01
    “…In this paper, we have formulated a SIRS type mathematical model to show the effects of ultraviolet radiation on skin cancer. …”
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    Article
  6. 2066

    Experimental and Modeling Study for the Solar-Driven CO<sub>2</sub> Electrochemical Reduction to CO by Matteo Agliuzza, Roberto Speranza, Andrea Lamberti, Candido Fabrizio Pirri, Adriano Sacco

    Published 2025-01-01
    “…The integrated device successfully produces CO with a faradaic efficiency of 73.85% at a current density of J = 3.35 mA/cm<sup>2</sup> under 1 sun illumination, with the result validated and reproduced by the mathematical model. Under reduced illumination conditions of 0.8 and 0.6 suns, faradaic efficiencies of 68.5% and 64.1% were achieved, respectively.…”
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  7. 2067

    Impact of delay on HIV-1 dynamics of fighting a virus withanother virus by Yun Tian, Yu Bai, Pei Yu

    Published 2014-05-01
    “…In this paper, we propose a mathematical model for HIV-1 infectionwith intracellular delay. …”
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    Article
  8. 2068

    Experiments and Computational Research of Biomass Pyrolysis in a Cylindrical Reactor by A. V. Mitrofanov, V. E. Mizonov, S. V. Vasilevich, M. V. Malko

    Published 2021-02-01
    “…The calculated forecasts and experimental data showed a good agreement, which indicates the adequacy of the developed mathematical model of pyrolysis and makes it possible to recommend it for engineering calculations of biomass pyrolysis. …”
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    Article
  9. 2069

    Thermodynamic Analysis of a Solar Combined Ejector Absorption Cooling System by Doniazed Sioud, Raoudha Garma, Ahmed Bellagi

    Published 2018-01-01
    “…However, higher driving heat temperatures are required than in the case of conventional single-effect machines. A mathematical model is set up to analyze the optical performance of the linear Fresnel concentrator. …”
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    Article
  10. 2070

    A Multivent System for Non-Invasive Ventilation: Solving the Problem of Ventilator Shortage During the COVID-19 Pandemic by Shuai Ren, Xiaohan Wang, Liming Hao, Tao Wang, Zujin Luo

    Published 2023-01-01
    “…Meanwhile, the mathematical model of the multivent system is established and validated through experiments. …”
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    Article
  11. 2071

    Prediction of Type 2 Diabetes Mellitus using a Logistic Regression Model by Olivia Altamirano Guerrero, Ronelsys Martínez Martínez, Jhonny Alejandro Rodríguez Gutiérrez

    Published 2024-01-01
    “…<strong><br />Objective:</strong> to design a mathematical model to predict the type 2 diabetes mellitus probability of existence in patients treated at a hospital in Guayaquil, Ecuador. …”
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  12. 2072

    Habit of elongate amphibole particles as a predictor of mesothelial carcinogenicity by Andrey A. Korchevskiy, Ann G. Wylie

    Published 2025-06-01
    “…In addition, three validation sets (an asbestiform sample from Eastern New York and non-asbestiform samples from Quebec and Falls Village, Connecticut) were tested by Transmission Electron Microscopy (TEM) to determine dimensional distribution. Mathematical modeling was utilized to determine the classification method for amphiboles with various habits. …”
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    Article
  13. 2073

    Iterative Analytical Solutions for Nonlinear Two-Phase Flow with Gas Solubility in Shale Gas Reservoirs by Xiaoji Shang, J. G. Wang, Zhizhen Zhang

    Published 2019-01-01
    “…Firstly, a nonlinear mathematical model is developed for the two-phase flow of gas and water during shale gas production. …”
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  14. 2074

    Study of Multi-Service Networks and Communication Systems Using Distributed Network Technology in Mountain Areas by Rustamova D. F., Mehdiyeva A. M., Mahmudova Z. A., Abdullaev J., Sapaev B.

    Published 2025-01-01
    “…The characteristics of corporate multiservice networks and communication systems using the technology of building distributed communication networks are analyzed and investigated, and a mathematical model of quality of service is proposed taking into account the management of information and network resources. …”
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    Article
  15. 2075

    Modeling and Dynamic Performance Analysis of Hydraulic Top Drive Main Transmission System with Long Hydraulic Pipelines by Yuanling Shi, Pingsong Zhang

    Published 2022-01-01
    “…Thus, the effects on the performance of hydraulic top drive should not be neglected. A mathematical model of hydraulic top drive main transmission with differential equation of hydraulic units and state space equation of hydraulic long pipelines was deduced in this research. …”
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  16. 2076

    A Prediction Method of Electromagnetic Environment Effects for UAV LiDAR Detection System by Min Huang, Dandan Liu, Liyun Ma, Jingyang Wang, Yuming Wang, Yazhou Chen

    Published 2021-01-01
    “…Traditional electromagnetic environment effect prediction methods mostly use a single model of mathematical model and machine learning, but the traditional prediction method has poor processing nonlinear ability and weak generalization ability. …”
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    Article
  17. 2077

    Dynamics of Positive Frequency Dependent Selection Triggers Selection for Silence by I. Hashem, V. De Buck, J. Van Impe

    Published 2022-01-01
    “…We illustrate our hypothesis using a mathematical model of a population of single locus diploid organisms with two alleles where a single mutant of an allele that experiences positive frequency dependent selection appears in a population where the other allele is a dominant. …”
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  18. 2078

    Developing a hybrid model for comparative analysis of financial data clustering algorithms by Mojtaba Movahedi, Mahdi Homayounfar, Mehdi Fadaei, Mansour Soufi

    Published 2023-09-01
    “…Due to the importance of using these algorithms in analyzing financial market data that have a high volume and scope, this study in order to select the best clustering algorithm for clustering companies listed on the Tehran Stock Exchange in the field of finance from It has used different clustering algorithms and evaluated the validity of these algorithms and selected the best algorithm.Methodology: This research is applied in terms of purpose and descriptive in terms of implementation method and is of quantitative type (mathematical modeling). The statistical population of the research includes 403 companies listed on the Tehran Stock Exchange in 2019, whose performance has been evaluated based on four financial criteria.Findings: After clustering the surveyed companies by five clustering algorithms, namely K-means, EM, COBWEB, density-based algorithm and ward method, seven indicators RS, DB, Dun, SD, Purity, Entropy and Time were used to evaluate the algorithms. …”
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  19. 2079

    A Study on Dynamic Characteristics of Satellite Antenna System considering 3D Revolute Clearance Joint by Zhengfeng Bai, Jijun Zhao

    Published 2020-01-01
    “…The dynamics modeling and analysis of the satellite antenna system are investigated considering the 3D revolute clearance joint. Firstly, the mathematical model of the 3D revolute clearance joint is established, and the definitions of the radial and axial clearance are presented. …”
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  20. 2080

    Recent Developments in Ventricular Assist Device Therapy by Angel Moctezuma-Ramirez, Haseeb Mohammed, Austin Hughes, Abdelmotagaly Elgalad

    Published 2025-01-01
    “…Romanian researchers have used advanced mathematical modeling and three-dimensional (3D) printing to produce a rim-driven, hubless axial-flow pump, achieving efficient blood flow with a compact design that includes a wireless power supply to reduce infection risk. …”
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