Showing 1,261 - 1,280 results of 3,115 for search '"mathematical models"', query time: 0.09s Refine Results
  1. 1261

    Effect of Receiver Holes on Flow and Heat Transfer Characteristics in A Radial Pre-swirl System: A LES Study by D. Wang, C. Song, C. Qiu, W. Wang, Y. Xu, P. I. Mihailovich

    Published 2025-01-01
    “…In addition, a mathematical model was developed to predict the relative total pressure and temperature inside the co-rotating cavity. …”
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    Article
  2. 1262

    Kinetics of Solidification and Crystallization of Liquid Axial Zone of Fe-C Alloys in Cylindrical Molds by V. Khrychikov, O. Semenov, Y. Aftandiliants, S. Gnyloskurenko, T. Semenova, H. Meniailo

    Published 2024-12-01
    “…The obtained curves can also be used to assess the accuracy of computer modeling of the processes of Fe-C alloys solidification and further adaptation of mathematical models by the correction of thermophysical coefficients, the values of which are not always known in the liquidus-solidus temperature range.…”
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  3. 1263

    Cheating Detection in Online Exams Using Deep Learning and Machine Learning by Bahaddin Erdem, Murat Karabatak

    Published 2025-01-01
    “…As a result of this study, it has been shown that the application of the most appropriate layer functions and parameter selection that will increase performance can be effective in estimating complex problems and target values that cannot be solved using classical mathematical models. The proposed models can provide educational institutions with a roadmap and insight in evaluating online examination practices and ensuring academic integrity. …”
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    Article
  4. 1264

    Nanomechanical characterization of soft nanomaterial using atomic force microscopy by Chi-Dat Lam, Soyeun Park

    Published 2025-04-01
    “…We comprehensively reviewed experimental techniques and fundamental mathematical models to investigate the mechanical properties, including elastic moduli and binding forces, of soft materials.To determine these mechanical properties, two-dimensional arrays of force-distance (f-d) curves are obtained through AFM indentation experiments using the force volume technique. …”
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    Article
  5. 1265

    The Study on Blockchain Adoption Strategies for Pharmaceutical Regulatory Products Under Dual-Channel Competition by Jianan Chen, You Xiao, Nianxing Yuan, Yong Wang, Jiamin Zhang, Lihui Wang

    Published 2024-01-01
    “…The methodology involves developing mathematical models for each scenario using parameters such as pricing, demand, and profit, followed by deriving equilibrium decisions for each model. …”
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    Article
  6. 1266

    Particle Flow Analysis of Macroscopic and Mesoscopic Failure Process of Salt Rock under High Temperature and Triaxial Stress by Haoran Li, Ziheng Wang, Dekang Li, Yajun Zhang

    Published 2021-01-01
    “…From the three different mathematical models of macroscopic and mesoscopic views, it is concluded that the effect of temperatures on salt rock is more significant after 90°C. …”
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    Article
  7. 1267

    Model of forecasting of material resources and estimated cost at early stages of life cycle of construction objects by M. V. Gureev, A. N. Makarov

    Published 2024-10-01
    “…To prepare and train AI models based on Python, the methods of the scikit-learn library were selected to compare the following mathematical models: decision trees, regressions and algorithms based on boosting.Results. …”
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  8. 1268

    Exploration of Key Factors in the Preparation of Highly Hydrophobic Silica Aerogel from Rice Husk Ash Assisted by Machine Learning by Yun Deng, Ziyan Sha, Xingxing Wang, Ke Duan, Weijie Xue, Ian Beadham, Xiaolan Xiao, Changbo Zhang

    Published 2025-01-01
    “…To expand the applications of hydrophobic silica aerogels derived from rice husk ash (HSA) through simple traditional methods (without adding special materials or processes), this paper employs machine learning to establish mathematical models to identify optimal conditions for extracting water glass and investigates how preparation conditions and heat treatment temperatures affect properties such as the porosity and hydrophobicity of HSA. …”
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  9. 1269

    Thermal effects of ternary Casson nanofluid flow over a stretching sheet: An investigation of Thomson and Troian velocity slip by Musharafa Saleem, A. Al-Zubaidi, Neyara Radwan, S. Saleem, Hind Adawi

    Published 2025-01-01
    “…This leads to a set of partial differential equations (PDEs) based mathematical models transformed into ordinary differential equations (ODEs)-appropriate similarity transformation. …”
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    Article
  10. 1270

    Energy efficiency and indoor climatic conditions in buildings: dynamic modeling for systemic improvement by Inna Bilous, Dmytro Biriukov, Tatiana Eutukhova, Oleksandr Novoseltsev, Volodymyr Voloshchuk, Aleksejs Prozuments

    Published 2025-01-01
    “…Based on the developed mathematical models, the dynamic modes of building energy supply systems are studied and recommendations for improving their efficiency are given. …”
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  11. 1271

    Study power of partial discharges to voltage intensity in XLPE-insulated cables by D. A. Polyakov, K. I. Nikitin, N. A. Tereschenko, I. V. Komarov, U. V. Polyakova

    Published 2020-03-01
    “…Some of the known mathematical models of insulation aging take into account the effect of partial discharges. …”
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    Article
  12. 1272

    A Survey of Matrix Completion Methods for Recommendation Systems by Andy Ramlatchan, Mengyun Yang, Quan Liu, Min Li, Jianxin Wang, Yaohang Li

    Published 2018-12-01
    “…We focus on the mathematical models for matrix completion and the corresponding computational algorithms as well as their characteristics and potential issues. …”
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  13. 1273

    Estimation of minimum miscible pressure in carbon dioxide gas injection using machine learning methods by Ali Akbari, Ali Ranjbar, Yousef Kazemzadeh, Fatemeh Mohammadinia, Amirjavad Borhani

    Published 2025-02-01
    “…At the same time, mathematical models may yield different estimations. This study introduces an innovative approach using machine learning (ML) techniques to determine CO2-MMP during CO2 flooding. …”
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  14. 1274

    TRENDS IN GLOBAL TRANSFORMATIONS OF COUNTRIES IN THE CONTEXT OF THEIR DEVELOPMENT AND ENSURING NATIONAL SECURITY by Olena A. Parshyna, Marharyta Yu. Parshyna, Tetiana V. Chumak, Ljudmila I. Yarmolenko

    Published 2025-01-01
    “…The system of indicators and criteria within the Fragile States Index reveals a significant deterioration in 2023 compared to 2013. Mathematical models of changes in the Fragile States Index for China and Indonesia have been constructed, along with an assessment of their accuracy, enabling the forecasting of strengthening trends for these countries in future periods. …”
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  15. 1275

    Research of temperature destruction effect on cables insulation operation life by V. N. Pugach, D. A. Polyakov, K. I. Nikitin, N. A. Tereshchenko, I. V. Komarov

    Published 2019-12-01
    “…The article describes the thermal aging of insulating materials of low-voltage cables and its effect on their service life. The wellknown mathematical models of insulation aging dependence on temperature are considered. …”
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  16. 1276

    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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  17. 1277

    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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  18. 1278

    Generalization of stochastic mortality models to improve mortality prediction in life insurance and pension funds by Shirin Shoaee, Mohammad Mehdi Gholi Keshmarzi

    Published 2023-09-01
    “…Therefore, the accuracy of mathematical models in predicting mortality rates is an important challenge. …”
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  19. 1279

    Double diffusive MHD stagnation point flow of second grade fluid in non-Darcy porous media under radiation effects by Walid Aich, Amir Abbas, Adebowale Martins Obalalu, Walid Hassen, Lotfi Ben Said, Rejab Hajlaoui, Lioua Kolsi

    Published 2025-01-01
    “…A study on thermal diffusion or the Soret effect and diffusion-thermo or the Dufour effects are included in the research. Mathematical models are developed for the current situation and translated into a set of ordinary differential equations that are solved using MATLAB’s bvp4c. …”
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  20. 1280

    Co-dynamics of hepatitis B and C viruses under the influence of CTL immunity by A.M. Elaiw, GH.S. Alsaadi, A.A. Raezah, A.D. Hobiny

    Published 2025-04-01
    “…Understanding the cytotoxic T lymphocyte (CTL) immune response against hepatitis B virus (HBV) and hepatitis C virus (HCV) infections is crucial, as these infections can lead to liver cirrhosis and cancer. Mathematical models provide valuable support for biological and medical research by helping to understand the within-host dynamics of single or multiple viral infections and by aiding the development of effective drug therapies. …”
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