Showing 20,761 - 20,780 results of 22,513 for search '"mathematics"', query time: 0.12s Refine Results
  1. 20761

    Function mechanism of turbulent eddy and process intensification of particle-bubble collision in fine mineral flotation by Xiaoheng LI, Hainan WANG, Kaixin ZHENG, Lijun WANG, Xiaokang YAN, Haijun ZHANG, Jiongtian LIU

    Published 2024-12-01
    “…In this study, the microscale dynamic behavior of fluids, particles, and bubbles in an isotropic turbulent field was measured using high-frequency particle image velocimetry and high-speed microscopic camera technology. With the help of mathematical methods such as wavelet transform, the multi-scale eddy characteristics of the turbulent flow field were mathematically decomposed, and the influence of small-scale eddy motion on the particle and bubble motion and collision processes was analyzed at the micro turbulence level. …”
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  2. 20762
  3. 20763

    Mechanism Optimization Design of Multi-bar Light-load Stamping Press by Yang Xu, Yuanchao Deng, Zhiqiang Xu

    Published 2022-07-01
    “…A mechanism model is constructed and a kinematic analysis is carried out; A mathematical model for optimizing the geometric parameters of multi-bar light-load stamping machine is established,which takes the maximum effective stamping angle of crank and the minimum fluctuation of acceleration of main slider in the effective stamping stroke as evaluation criteria; The optimization model of the mechanism is constructed by step search method with Matlab,and then a simulation analysis is carried out with Adams. …”
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  4. 20764

    Decentralized Frequency Regulation by Using Novel PID Sliding Mode Structure in Multi-Area Power Systems With Hydropower Turbines by Dao Trong Tran, Anh-Tuan Tran, van van Huynh, Ton Duc do

    Published 2025-01-01
    “…The global system stability of this new approach is mathematically analyzed using Lyapunov theory alongside a novel Linear Matrix Inequality (LMI) technique. …”
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  5. 20765

    A New Method of Image Steganography Using 7th Bit of a Pixel as Indicator by Introducing the Successive Temporary Pixel in the Gray Scale Image by Kamaldeep Joshi, Swati Gill, Rajkumar Yadav

    Published 2018-01-01
    “…On the basis of the 7th bit of the pixels of an image, a mathematical function is applied at the 7th bit of the pixels, which generates a temporary variable (pixel + 1). …”
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  6. 20766

    Stochastic User Equilibrium Assignment in Schedule-Based Transit Networks with Capacity Constraints by Wangtu Xu, Lixin Miao, Wei-Hua Lin

    Published 2012-01-01
    “…When the capacity constraint of the transit line segment is reached, we show that the Lagrange multipliers of the mathematical programming problem are equivalent to the equilibrium passenger overload delay in the congested transit network. …”
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  7. 20767

    Properties of Gaussian Beam Propagating in Ring Resonator Sensor by Long Jin, Zhiqiang Yang, Qiang Zhang

    Published 2019-01-01
    “…What is more, we propose a ring resonator sensor to measure the concentration of NaCl solution on the basis of above theory, of which the operating principle is deliberatively analyzed, the influence of the concave mirror curvature radius on the emerging beam evolution is acquired, the functional relation between the normalized central intensity of the emerging beam, the beam spot size, and NaCl solution concentration is further developed by fit linear method, and the mathematical statistics results reach high precision and linearity. …”
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  8. 20768

    Dynamic Analysis and Scale Optimization of Prefabricated Building Wall Panel Installation by Jiang Mingyang, Zhang Lin, Liu Hongbin, Sima Mingyang, Yu Ningtao

    Published 2023-04-01
    “…Taking a new type of prefabricated building wall panel installation machine as the research object, the mechanism configuration and specific implementation are analyzed, the kinematic and dynamic mathematical models of the boom landing mechanism are established, and the functional relationship between the maximum load of the cylinder and the scale parameters is solved. …”
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    Article
  9. 20769

    On the factors and the degree of their effect on subglacial melt and changes in the state of Antarctic subglacial lakes by Alina Boronina, Sergey Popov, Gang Qiao

    Published 2024-12-01
    “…This study presents the results of mathematical modeling of the degree of effects of various characteristics on basal conditions in Antarctica. …”
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  10. 20770

    Clinical reasoning in oncoplastic surgery at Plastic Surgery and Caumatology residents by Tatiana Hernandez González, Marta Alfonso Nazco, Miguel Angel Amaró Garrido, Ana Lucía Martínez Hernández, Eliecer González Valdez, Jorge Félix Jiménez Álvarez, Yurisbel Tomás Solenzal Alvarez

    Published 2024-08-01
    “…Methodology: Methods of the theoretical, empirical and mathematical-statistical level were applied, as well as documentary analysis, interviews, the Mini-Clinical Evaluation Exercise (Mini-CEX) and a pedagogical pre-experiment. …”
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  11. 20771

    A New Shunt Capacitor-Commutated Converter for Reducing Commutation Failure Probability of HVDC Transmission and Converter Transformer Noise by Hao Zhang, Sijia Hu, Longfu Luo, Jinjie Lin, Liang Zhao, Zhiwen Zhang

    Published 2025-01-01
    “…First, the topology and the mathematical model of the SCCC are established, with its commutation and frequency characteristics analyzed. …”
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  12. 20772

    Feasibility Study of a Building-Integrated PV Manager to Power a Last-Mile Electric Vehicle Sharing System by Manuel Fuentes, Jesús Fraile-Ardanuy, José L. Risco-Martín, José M. Moya

    Published 2017-01-01
    “…As a case study, an electric bicycle sharing system between a public transportation hub and a work center is modeled mathematically and optimized in order to minimize the number of pickup trips to satisfy the demand, while minimizing the total energy consumption of the system. …”
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  13. 20773

    Evaluation of the ratcheting behavior of Cr-Mo steel used in CNG tank by Karim Aliakbari, Shahab Kamel Abbasnia, Mahmoud Shariati

    Published 2025-03-01
    “…The novelty of this research is that the hardening coefficients of 25CrMo4 steel were estimated by particular innovative mathematical equations. The effect of amplitude stress and mean stress on the ratcheting behavior of 25CrMo4 steel was investigated numerically. …”
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  14. 20774

    HYBRID OPTIMIZATION METHOD OF CONTINUUM STRUCTURE AND ITS SUPPORTING LOCATIONS by HU TianNan, DING XiaoHong

    Published 2021-01-01
    “…In this paper,supporting locations are described by continuous variables with the introduction of the independent supporting elements,then a hybrid optimization method of continuum structure and its supporting locations is proposed. The mathematical models of multi-objective optimization are established considering both the structural stiffness and the mean eigenvalue of the structure. …”
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  15. 20775

    Bioinspired self-flowing wood chemical treatment by Xuan Wang, Sheldon Q. Shi

    Published 2025-01-01
    “…The self-flowing process allows a more uniform wood treatment compared to that from the immersion and vacuum pressure methods. A mathematical model was developed to describe the self-flowing process. …”
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  16. 20776

    Dynamics Analysis and Experiment of Novel Compound Dry Separator by Li Hongxi, Zhou Enhui, Zhang Bo, Jiang Haishen, Shen Ling, Yin Zixin

    Published 2022-01-01
    “…The dynamic characteristics and vibration behavior of the NCDS were studied through theoretical modeling, simulation research, and experimental test methods. The mathematical model and simulation model based on ADAMS of the NCDS were established. …”
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  17. 20777

    Discovering causal models for structural, construction and defense-related engineering phenomena by M.Z. Naser

    Published 2025-01-01
    “…Such models are often referred to as causal models. Unlike those of mathematical, numerical, empirical, or machine learning (ML) nature, causal models hope to tie the cause(s) to the effect(s) pertaining to a phenomenon (i.e., data generating process) through causal principles. …”
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  18. 20778

    Spatial risk modelling of highly pathogenic avian influenza in France: Fattening duck farm activity matters. by Jean Artois, Timothée Vergne, Lisa Fourtune, Simon Dellicour, Axelle Scoizec, Sophie Le Bouquin, Jean-Luc Guérin, Mathilde C Paul, Claire Guinat

    Published 2025-01-01
    “…Accurate data regarding poultry farm densities and movements is critical for developing accurate mathematical models of HPAI virus spread and for designing effective prevention and control strategies for HPAI. …”
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  19. 20779

    Analytical model and simulation‐based analysis of a work function engineered triple metal tunnel field‐effect transistor device showing excellent device performance by Ria Bose, Jatindra Nath Roy

    Published 2021-01-01
    “…A simulation‐based study of these TFET devices has been carried out with the help of 2D TCAD (Technology Computer Aided Design) Sentaurus device simulator for different channel length values in order to validate our proposed mathematical model. The source side n + pocket in the proposed triple metal (TM) TFET device enhances tunnelling probability thus increasing on current and off current is controlled by another n‐pocket near drain side. …”
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  20. 20780

    A comparative approach for the optimal design of steel structures using biogeography-based optimization (BBO) algorithm and genetic algorithm (GA) by Laid Amamra, Mohamed Bensoula, Sadek Bahar

    Published 2023-12-01
    “… Structural optimization is one of the key concerns of civil engineering designers, but from a mathematical point of view, this optimization problem is highly complex and complicated due to a large number of non-linear design constraints and the iterative procedure of structural analysis. …”
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