Showing 2,961 - 2,980 results of 3,115 for search '"Mathematical model"', query time: 0.07s Refine Results
  1. 2961

    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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  2. 2962

    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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  3. 2963

    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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  4. 2964

    Scientific basis for design low-speed synchronous permanent magnet generators for wind power plants by A. A. Tatevosyan

    Published 2021-03-01
    “…For the stage of verification calculations of VEU parameters, the scientific basis of design is determined by the construction of mathematical models and their research using application software packages for PCs, while for the stage of preliminary calculations, the development of analytical methods of analysis is important. …”
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  5. 2965

    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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  6. 2966

    Development and Evaluation of User‐Friendly Modeled Approach for Sustainable Polymer Membranes for Advanced Hemodialysis by Ahmed Khan, Zaib Jahan, Muhammad Ahsan, Muhammad Bilal Khan Niazi, Muhammad Nouman Aslam Khan, Ahmed Sayed M. Metwally, Farooq Sher

    Published 2025-01-01
    “…Abstract Hemodialysis is crucial for patients with end‐stage renal disease, yet evaluating its operating parameters often requires complex mathematical models. To simplify this process, user‐friendly modules have been developed to accurately assess key parameters with minimal inputs, enabling users to track disease prognosis. …”
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  7. 2967

    Digital Modeling of Cone-generated Enveloping Torus Worm by Zhi Liu, Hong Lu, Xin Kuang, Liang Xia

    Published 2020-10-01
    “…The solving algorithm for the complex nonlinear mathematical models is also designed based on the forming principle of the envelope surface, the instantaneous contact line and all meshing point cloud for the tooth profile are calculated, the distribution of contact line of worm tooth profile is also given. …”
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  8. 2968

    Analysis of seepage through an earth dam with a diaphragm on an impermeable foundation using PLAXIS 2D by G. V. Orekhov, Tran Manh Cuong

    Published 2024-02-01
    “…In this paper, the analysis of the seepage regimes in the body of earth dams is performed by means of mathematical modelling using numerical finite element models. …”
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  9. 2969

    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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  10. 2970

    Development of Modified-Release Diclofenac Sodium Capsules Using Blends of Pectin-Clay Multiparticulate Hybrid Systems as Release Retardants by Ofosua Adi-Dako, Frederick William Akuffo Owusu, Isaac Yaw Attah, Doris Kumadoh, Prince George Acquah Jnr, Issaka Nelson, Nii Odartey Hutton-Mills, Karen Yaa Yeboaa Obese, Joseph Adusei Sarkodie, Benoit Banga N’guessan, Awo Afi Kwapong, Christina Osei-Asare, Emmanuel Adase, Mary-Ann Archer

    Published 2023-01-01
    “…The diclofenac content, uniformity of the weight of capsules, in vitro drug release, and the kinetics and mechanism of release of diclofenac from the hybrid systems were also investigated using mathematical models. The pectin yield was 23.3%, with the water-holding capacities of pectin-talc (PT) and pectin-bentonite (PB) hybrid systems being 6.4% and 5.0%, respectively. …”
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  11. 2971

    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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  12. 2972

    Theoretical analysis of neuronal network's response under different stimulus. by Haosen Xue, Zeying Lu, Yueheng Lan, Lili Gui, Xiaojuan Sun

    Published 2024-01-01
    “…Conducting pioneering theoretical research using mathematical models is particularly essential for enhancing efficiency and reducing costs. …”
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  13. 2973

    Mathematical Analysis of Malaria Epidemic: Asymptotic Stability With Cost-Effectiveness Study by Sacrifice Nana-Kyere, Baba Seidu, Kwara Nantomah

    Published 2024-01-01
    “…The disease has unmatched complications in the human host, especially in children. Mathematical models of infectious diseases have been the steering wheel, driving scientists towards elucidation of the dynamic behaviour of epidemics and providing tailored strategic management of diseases. …”
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  14. 2974

    Modeling and Analysis of Lung Water Content Using RF Sensor by Prapti Ganguly, Shreyasi Das, Amlan Chakrabarti, Jawad Yaseen Siddiqui

    Published 2024-01-01
    “…This work is a first of its kind where the dielectric parameters at different levels of hydration have been previously estimated using mathematical models and substituted accordingly in the modeling environment to test the possibility of detection of PE with high precision. …”
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  15. 2975

    A Finite Element Method for Modeling Diffusion and Drug Release from Nanocellulose/Nanoporous Silicon Composites by Paulo Zúñiga, Marcelo Aravena, Silvia Ponce, Jacobo Hernandez-Montelongo

    Published 2025-01-01
    “…<b>Methods</b>: Release profiles of MB from NC/nPSi composites with varying nPSi concentrations (0%, 0.1%, 0.5%, and 1.0%) were experimentally measured in triplicate using phosphate-buffered saline (PBS) at 37 °C, pH 7.4, and 100 rpm. Mathematical models incorporating linear and quadratic dependencies of the diffusion coefficient on the MB concentration were developed and tested using the FE method. …”
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  16. 2976

    Study on Two-phase Flow Mechanisms in Nanopore Considering Microcosmic Deformation and Dynamic Capillary Force by Xiangji Dou, Cong Lin, Sujin Hong, Pengfei Zhu, An Wang, Guodong Qi

    Published 2022-01-01
    “…And then, innovative methods to quantify the dynamic capillary force phenomenon under comprehensive influence of pore size, roughness, and pressure are developed. Meanwhile, mathematical models, considering the effect of the pore deformation and dynamic capillary force, are furtherly derived to characterize the water-oil two-phase flow behavior for relatively large nanopores in shale oil reservoir, which can be used to investigate the influence of the vital parameters. …”
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  17. 2977

    Effects of Certain Personal Attributes on Food Waste by Ákos Bartha, Bálint Horváth

    Published 2019-06-01
    “…While exploring the causes of high amounts of consumer waste, a research group has also correlated (with mathematical models) the gradual growth rate of food waste, the US obesity epidemic and the growing supply of cheaper food products (Hall et al. 2009). …”
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  18. 2978

    Evaluation of the extraction of antioxidant compounds from buriti pulp (Mauritia flexuosa L.) by response surface methodology by Gabriela Mota Nogueira, Flávia Aparecida Reitz Cardoso, Márcia Regina Ferreira Geraldo Perdoncini, Marcos Vieira da Silva, Eliane Sloboda Rigobello

    Published 2025-01-01
    “…Data modeling generated statistically significant mathematical models and contour graphs, which allowed the identification of the optimal extraction conditions for the compounds. …”
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  19. 2979

    Prediction of urinary tract infection using machine learning methods: a study for finding the most-informative variables by Sajjad Farashi, Hossein Emad Momtaz

    Published 2025-01-01
    “…In the recent decade, machine learning strategies that employ mathematical models on a dataset to extract the most informative hidden information are the center of interest for prediction and diagnosis purposes. …”
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  20. 2980

    Stratifications and foliations in phase portraits of gene network models by V. P. Golubyatnikov, A. A. Akinshin, N. B. Ayupova, L. S. Minushkina

    Published 2023-01-01
    “…In the preparation of numerical experiments with such mathematical models, it is useful to start with studies of qualitative behavior of ensembles of trajectories of the corresponding dynamical systems, in particular, to estimate the highest likelihood domain of the initial data, to solve inverse problems of parameter identification, to list the equilibrium points and their characteristics, to localize cycles in the phase portraits, to construct stratification of the phase portraits to subdomains with different qualities of trajectory behavior, etc. …”
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