Showing 20,861 - 20,880 results of 22,513 for search '"Mathematics"', query time: 0.11s Refine Results
  1. 20861

    A Decision-Making Model for Deterring Food Vendors from Selling Harmless Low-Quality Foods as High-Quality Foods to Consumers by Po-Yu Chen

    Published 2017-01-01
    “…Adopting the standpoint of the public sector in food safety management, this study developed a mathematical model that facilitates discussion on the aforementioned problems. …”
    Get full text
    Article
  2. 20862

    A geometric neural solving method based on a diagram text information fusion analysis by Bin Ma, Pengpeng Jian, Cong Pan, Yanli Wang, Wei Ma

    Published 2024-12-01
    “…This involves combining the knowledge of mathematical theorems, generating a solution sequence, and executing to obtain the answer. …”
    Get full text
    Article
  3. 20863

    Prediction of Epileptic Seizure by Analysing Time Series EEG Signal Using k-NN Classifier by Md. Kamrul Hasan, Md. Asif Ahamed, Mohiuddin Ahmad, M. A. Rashid

    Published 2017-01-01
    “…Using the statistical parameters and regression analysis, a prototype mathematical model is proposed which helps to find the epileptic randomness with respect to the age of different subjects. …”
    Get full text
    Article
  4. 20864

    A Novel Numerical Algorithm for Optimal Sizing of a Photovoltaic/Wind/Diesel Generator/Battery Microgrid Using Loss of Load Probability Index by Hussein A. Kazem, Tamer Khatib

    Published 2013-01-01
    “…The objective of the proposed optimization is to design the system that can supply a building load demand at minimum cost and maximum availability. The mathematical models for the system components as well as meteorological variables such as solar energy, temperature, and wind speed are employed for this purpose. …”
    Get full text
    Article
  5. 20865

    Application of hybrid ant colony algorithm to the design of analog wavelet optimized circuits by Quanhui Ren, Chenyu Meng

    Published 2025-12-01
    “…The study performs constrained mathematical modeling of the wavelet approximation through the minimum mean square error criterion and optimizes it using the hybrid ant colony algorithm. …”
    Get full text
    Article
  6. 20866

    Research on Tooth Surface Design of Curved Tooth Face Gear based on Cylindrical Gear Addendum Modified by Yong Chen, Zhanrong Feng, Yulong Zhao, Ning Huang, Lingfeng Gao, Guangjin Xiong

    Published 2021-05-01
    “…Cross-section fillet equation, fillet surface equation, and modified curved tooth surface transition surface equation are deduced, and the mathematical model of the two kinds of tooth tip cylindrical gears is established by Matlab. …”
    Get full text
    Article
  7. 20867

    On the Investigation of State Space Reconstruction of Nonlinear Aeroelastic Response Time Series by Flávio D. Marques, Eduardo M. Belo, Vilma A. Oliveira, José R. Rosolen, Andréia R. Simoni

    Published 2006-01-01
    “…Stall-induced aeroelastic motion may present severe non-linear behavior. Mathematical models for predicting such phenomena are still not available for practical applications and they are not enough reliable to capture physical effects. …”
    Get full text
    Article
  8. 20868

    Using microtremor data to obtain dynamic properties of soils in the Veracruz-Boca del Rio metropolitan areaMendeley Data by José E. Barradas-Hernández, Sergio Márquez-Domínguez, Franco Antonio Carpio-Santamaria, Alejandro Vargas-Colorado, Abigail Zamora-Hernández, Roberto Rivera-Baizabal

    Published 2025-02-01
    “…These models represent a mathematical approximation of the soil structure that can be used to dynamically classify it according to Mexican technical codes.…”
    Get full text
    Article
  9. 20869

    Experimental Study on Expansion Characteristics of Core-Shell and Polymeric Microspheres by Pengxiang Diwu, Baoyi Jiang, Jirui Hou, Zhenjiang You, Jia Wang, Liangliang Sun, Ye Ju, Yunbao Zhang, Tongjing Liu

    Published 2018-01-01
    “…Based on the experimental results, the core-shell microsphere is suitable for injection in the early stage to block the near-wellbore zone, and the polymeric microsphere is suitable for subsequent injection to block the formation away from the well. A simple mathematical model is proposed for size evolution of the polymeric and core-shell microspheres.…”
    Get full text
    Article
  10. 20870

    Multi-objective assessment of hydrological model performances using Nash–Sutcliffe and Kling–Gupta efficiencies on a worldwide large sample of watersheds by Mathevet, Thibault, Le Moine, Nicolas, Andréassian, Vazken, Gupta, Hoshin, Oudin, Ludovic

    Published 2023-01-01
    “…We also illustrate the negative impacts of classical mathematical transformations (square root) applied to streamflow when employing NSE and KGE as metrics for model calibration.…”
    Get full text
    Article
  11. 20871

    Study on Modification and Tooth Tip Sharping Analysis of Orthogonal Arc Tooth Face Gears by Zhanrong Feng, Guangjin Xiong, Lingfeng Gao, Chao Luo

    Published 2022-05-01
    “…Tooth surface equations of cylindrical gears with arc teeth and face gears are derived, which are based on differential geometry calculation and principle of gear meshing. Mathematical models of working tooth surface and transitional tooth surface are established based on Matlab. …”
    Get full text
    Article
  12. 20872

    Application of physics-informed neural networks (PINNs) solution to coupled thermal and hydraulic processes in silty sands by Yuan Feng, Jongwan Eun, Seunghee Kim, Yong-Rak Kim

    Published 2025-01-01
    “…This neural network model leverages automatic differentiation to apply the governing equations as constraints, based on the mathematical approximations established by the neural network itself. …”
    Get full text
    Article
  13. 20873
  14. 20874

    Modeling of Throughput in Production Lines Using Response Surface Methodology and Artificial Neural Networks by Federico Nuñez-Piña, Joselito Medina-Marin, Juan Carlos Seck-Tuoh-Mora, Norberto Hernandez-Romero, Eva Selene Hernandez-Gress

    Published 2018-01-01
    “…Response surface methodology and artificial neural network were used to develop predictive models to find optimal throughput values. 360 production rate values for different number of buffer slots and workstations were used to obtain a fourth-order mathematical model and four hidden layers’ artificial neural network. …”
    Get full text
    Article
  15. 20875

    Local changes in potassium ions regulate input integration in active dendrites. by Malthe S Nordentoft, Naoya Takahashi, Mathias S Heltberg, Mogens H Jensen, Rune N Rasmussen, Athanasia Papoutsi

    Published 2024-12-01
    “…During neuronal activity, the extracellular concentration of potassium ions ([K+]o) increases substantially above resting levels, yet it remains unclear what role these [K+]o changes play in the dendritic integration of synaptic inputs. We here used mathematical formulations and biophysical modeling to explore the role of synaptic activity-dependent K+ changes in dendritic segments of a visual cortex pyramidal neuron, receiving inputs tuned to stimulus orientation. …”
    Get full text
    Article
  16. 20876

    Multiobjective Optimization Management of Construction Engineering Based on Ant Colony Algorithm by Xuejie Liang

    Published 2022-01-01
    “…Then, combined with the idea of multiobjective optimization, the multiobjective optimization mathematical model of construction process is constructed, and the construction data obtained from field investigation are summarized and analyzed to obtain the cost, construction period, and carbon emission of each process under different execution modes. …”
    Get full text
    Article
  17. 20877

    Analysis and design of a fixed wing unmanned aerial vehicle gas launching system by LI Xiang, LI Qiang, WANG Teng, WANG Shaoquan, ZHANG Shiyu

    Published 2025-02-01
    “…In order to meet the development requirements of unmanned aerial vehicle (UAV) boosters, a detachable launch booster for fixed wing UAVs was designed, which is driven by high-pressure carbon dioxide gas. A mathematical model for gas launch was established based on the internal ballistic equation of the gas cannon. …”
    Get full text
    Article
  18. 20878

    Stochastic Dynamic Model of Sulfate Corrosion Reactions in Concrete Materials considering the Effects of Colored Gaussian Noises by Tao Li, Bin Zhang

    Published 2019-01-01
    “…Results show that the stochastic dynamical responses of the corrosion reactions in concrete can be comprehensively investigated by the proposed stochastic mathematical model; the probabilistic information of the corrosion products can also be obtained conveniently. …”
    Get full text
    Article
  19. 20879

    Online Identification Method for Mechanical Parameters of Dual-Inertia Servo System by Bo Wang, Runze Ji, Chengpeng Zhou, Kai Liu, Wei Hua, Hairong Ye

    Published 2024-12-01
    “…The identification of the mechanical parameters of the dual-inertia servo system is thus undertaken. A simplified mathematical model of the dual-inertia system is constructed, the principle of mechanical parameter identification of the dual-inertia system is elucidated, an online identification algorithm based on the forgetting factor recursive least square (FFRLS) is investigated, and factors affecting the identification accuracy are analyzed. …”
    Get full text
    Article
  20. 20880

    Investigating lower secondary school students’ geometric argumentation structure using Toulmin model by M. Rizky Ramandani, Yusuf Hartono, Cecil Hiltrimartin, Nyimas Aisyah

    Published 2024-06-01
    “…Geometric argumentation has an important role in solving mathematical problems in geometric material, so students must have this ability. …”
    Get full text
    Article