Showing 2,861 - 2,880 results of 3,115 for search '"mathematical modeling"', query time: 0.08s Refine Results
  1. 2861
  2. 2862

    Chronic Kidney Disease in the Eastern Region of the State of Mexico: Implication of the Social Determinants of Health by Luis Enrique Hernández Gamundi, Donovan Casas Patiño, Alejandra Rodríguez Torres, Angélica Heredia Sánchez

    Published 2023-06-01
    “…<br /><strong>Conclusions:</strong> due to their impact on the way of living and caring for chronic kidney disease, the social determinants of health should be included transdisciplinary in public health policies, where not only epidemiology dictates the approach to renal patients, at this time mathematical models They are not applicable to groups, because social, cultural behaviors and the social determinants of health set the behavior patterns of human beings.…”
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  3. 2863

    Removal of Pb2+ Ions by ZSM-5/AC Composite in a Fixed-Bed Bench Scale System by R. Lakshmipathy, G. L. Balaji, Iván Leandro Rodríguez Rico

    Published 2021-01-01
    “…The breakthrough curves were verified with three well-known mathematical models such as the Adams-Bohart, Thomas, and Yoon-Nelson models. …”
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  4. 2864

    Modeling of drying kinetics and chemical analysis for optimal preservation of pitahaya, aguaymanto and pineapple fruits using a parabolic solar dehydrator in the Amazon region - Pe... by Merbelita Yalta Chappa, Wildor Gosgot Angeles, Luz Quispe-Sanchez, Diana Carina Mori Servan, Homar Santillan Gomez, Manuel Oliva-Cruz, Miguel Ángel Barrena Gurbillón

    Published 2025-03-01
    “…In this research, the drying kinetics were modeled, and a chemical analysis was performed to determine the optimum preservation conditions for pitahaya (Selenicereus undatus), aguaymanto (Physalis peruviana), and pineapple (Ananas comosus) fruits using a parabolic solar dehydrator in the Amazon region of Peru. Five mathematical models were used to determine the drying curve, with the criterion of selection the best model with the coefficient of determination (R2) and model efficiency (EF); in addition, pH and titratable acidity were evaluated during the dehydration period. …”
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  5. 2865

    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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  6. 2866

    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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  7. 2867

    Specificity and tunability of efflux pumps: A new role for the proton gradient? by Matthew Gerry, Duncan Kirby, Boian S Alexandrov, Dvira Segal, Anton Zilman

    Published 2025-01-01
    “…We developed a set of mathematical models describing operation of efflux pumps as a discrete cyclic stochastic process across a network of states characterizing pump conformations and the presence/absence of bound ligands and protons. …”
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  8. 2868

    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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  9. 2869

    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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  10. 2870

    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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  11. 2871

    On Determination of the Stress State of an Elastic-Porous Medium by E.A. Mikishanina, A.G. Terentiev

    Published 2017-06-01
    “…In the present work, the simplest mathematical model of plane elastic stress state in the transverse weightness field within both Hooke's law and Darcy's law with a constant filtration coefficient has been considered. …”
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  12. 2872

    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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  13. 2873

    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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  14. 2874

    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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  15. 2875

    Numerical Solution of Binary Liquid-Phase Adsorption onto Porocel Clay Using Linear, Freundlich and Langmuir Isotherms by Olaosebikan A. Olafadehan, Alfred A. Susu

    Published 2005-04-01
    “…A generalized mathematical model is presented to describe the process of multi-component adsorption onto porous media in fixed beds. …”
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  16. 2876

    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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  17. 2877

    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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  18. 2878

    Mathematical and finite element modelling of sustainable portable grain segregation system for the HDPE industry by Muhammad Huzaifa Ansari, Riffat Asim Pasha, Amar Ul Hassan Khawaja, Chaudry Muhammad Muzammil, Uzair Akram, Maryam Ismail

    Published 2025-01-01
    “…Furthermore, the mathematical modelling, structural, and Modal analysis of the design is investigated, to check the durability of the design under stresses using Finite Element Analysis (FEA) techniques. …”
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  19. 2879

    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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  20. 2880

    PERFORMANCE ANALYSIS AND WEAR MECHANISM RESEARCH OF FEEDING SCREW OF COAL CLEANING MACHINE by XIE Miao, PEI BoBo, LIU ZhiXiang, LI Zheng, GENG XiWang

    Published 2022-01-01
    “…,the torque of screw is relatively small at the same time.In conclusion, the best range of screw speed is 35 r/min~ 50 r/min.In addition, the screw wear is serious when transporting large coal particles compared with small particles.Therefore, in practical application, the transportation of large coal should be carried out at low screw speed.Based on the above conclusion, in this paper, an optimal mathematical model is established to minimize the driving torque, obtaining the optimal structure and dynamic parameters of the screw, and proving the correctness of optimization process by simulation test.It provides a theoretical reference for improving the transportation efficiency of the coal cleaning machine, reducing the energy consumption of the equipment and prolonging the service life of the equipment.…”
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