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Showing 1,761 - 1,780 results of 15,724 for search 'determined (coefficient OR efficient) (method OR methods)', query time: 0.34s Refine Results
  1. 1761

    Adaptive zero velocity correction method for fiber optic inertial navigation system in coal mining roadheader by Qinghua MAO, Qing ZHOU, Jianquan CHAI, Yanzhang CHEN, Wenjuan YANG, Xusheng XUE

    Published 2025-05-01
    “…Firstly, the vibration signal is decomposed by VMD and the IMF component is selected according to the correlation coefficient. Secondly, the time-frequency domain features of IMF components are extracted, and the principal component analysis method is used to reduce the dimension to reduce the complexity of the diagnostic model and the difficulty of data analysis. …”
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  2. 1762

    The performance evaluation of chaotic maps in estimating the shape parameters of radial basis functions to solve partial differential equations by Javad Alikhani Koupaei, Mohammad Javad Ebadi, Majid Iran Pour

    Published 2024-06-01
    “…Purpose: This study aims to investigate the potential of chaotic optimization algorithms in improving performance compared to other optimization methods, focusing on determining the appropriate shape parameter of radial basis functions for solving partial differential equations.Methodology: In this research, a two-stage process is employed where the Kansa method, based on meshless local techniques, is combined with the FCW method. …”
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  3. 1763

    Explainable Machine Learning to Predict the Construction Cost of Power Plant Based on Random Forest and Shapley Method by Suha Falih Mahdi Alazawy, Mohammed Ali Ahmed, Saja Hadi Raheem, Hamza Imran, Luís Filipe Almeida Bernardo, Hugo Alexandre Silva Pinto

    Published 2025-04-01
    “…Performance measures, comprising the coefficient of determination (<inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><msup><mi>R</mi><mn>2</mn></msup></semantics></math></inline-formula>), Mean Absolute Error (MAE), and Root Mean Squared Error (RMSE), were used to evaluate and contrast the performance of the implemented models. …”
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  4. 1764

    A Novel Method for Obtaining the Electrical Model of Lithium Batteries in a Fully Electric Ultralight Aircraft by Jesús A. Salas-Cardona, José A. Posada-Montoya, Sergio D. Saldarriaga-Zuluaga, Nicolas Muñoz-Galeano, Jesús M. López-Lezama

    Published 2024-10-01
    “…The proposed method was validated with an all-electric ultralight aircraft designed and constructed at the Pascual Bravo University Institution. …”
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  5. 1765

    Digital Elevation Model-Driven River Channel Boundary Monitoring Using the Natural Breaks (Jenks) Method by Rongjie Gui, Wenlong Song, Juan Lv, Yizhu Lu, Hongjie Liu, Tianshi Feng, Shaobo Linghu

    Published 2025-03-01
    “…Finally, river channels were extracted from the clipped DEM data using the natural breaks classification method. The classification accuracy was assessed using a confusion matrix. …”
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  6. 1766

    A simple scalable extracellular vesicle isolation method using polyethylenimine polymers for use in cellular delivery by Marie Ange Djeungoue Petga, Catherine Taylor, Alexander Macpherson, Surendar Reddy Dhadi, Thomas Rollin, Jeremy W. Roy, Anirban Ghosh, Stephen M. Lewis, Rodney J. Ouellette

    Published 2024-06-01
    “…Isolated EVs had a mean diameter of 146 nm for B-PEI and 175 nm for L-PEI, while TEM revealed a spherical cup-shaped appearance typical of EVs. In addition, we determined that PEI-based EV isolation methods were scalable up to volumes of at least 50 mL. …”
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  7. 1767

    Evolutionary pattern and a calculation method of in situ gas pressure based on pressure-retaining coal cores by Mingzhong GAO, Jie SONG, Pengfei CUI, Yongcheng LI, Zhipeng WANG, Xuemin ZHOU, Ju LI, Zongxin HAO, Haichun HAO

    Published 2025-04-01
    “…The corrected gas pressure calculation method demonstrated high accuracy. The proposed approach offers promising potential as a reliable, efficient, and accurate means for determining of in-situ coalbed gas pressure.…”
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  8. 1768

    A Cloud Computing-Based Intelligent Forecasting Method for Cross-Border E-Commerce Logistics Costs by Yanting Li

    Published 2022-01-01
    “…Aiming at the problems of poor forecasting effect and low accuracy and low efficiency in current cross-border e-commerce logistics cost prediction methods, a cloud computing-based intelligent method for cross-border e-commerce logistics cost prediction is proposed. …”
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  9. 1769

    Iceball growth 3D simulation model based on finite element method for hepatic cryoablation planning by Shengwei Li, Yumeng Zhang, Fanyu Zhou, Sheng Xu, Yufeng Wang, Lin Cheng, Zhixin Bie, Bin Li, Xiao-Guang Li

    Published 2025-04-01
    “…Results The measurements in the ex vivo experiments showed a close similarity between the simulated and experimental iceball growth curves for three cryoprobe models, with all mean absolute error<2.9 mm and coefficient of determination>0.85. In the clinical validation, the simulation model achieved high accuracy with a DSC of 0.87 ± 0.03 and an HD of 2.0 ± 0.4 mm. …”
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  10. 1770

    Proton magnetic resonance spectroscopy and apparent diffusion coefficient in evaluation of solid brain lesions by Ristić-Baloš Dragana, Gavrilović Svetlana, Lavrnić Slobodan, Vasić Brankica, Mačvanski Marija, Damjanović Dušan, Stošić-Opinćal Tatjana

    Published 2013-01-01
    “…The choline to creatine (Cho/Cr), choline to N-acetyl aspartate (Cho/NAA), N-acetyl aspartate to creatine (NAA/Cr) and myoinositol to creatine (mIn/Cr) ratios and the apparent diffusion coefficient (ADC) were determined. Results. The Cho/Cr ratio was significantly higher in glial tumors grade II than in non-neoplastic lesions (p = 0.008) and in glial tumors grade III than in non-neoplastic lesions (p = 0.001). …”
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  11. 1771
  12. 1772

    A Method to Evaluated Gas Content with Coalbed Methane Reservoir Based on Adsorption Theory and Production Analysis by Ruyong Feng

    Published 2022-01-01
    “…The gas content directly determines whether coalbed methane can be developed efficiently. …”
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  13. 1773

    Wind Turbine Airfoil Noise Prediction Method Based on Generalized Airfoil Database and Residual Neural Network by Quan Wang, Haoran Zhang, Xiaodi Wang, Yang Ni

    Published 2025-05-01
    “…To address the limitations of existing wind turbine airfoil databases, the high computational cost, and low efficiency of noise prediction, this paper proposes a wind turbine airfoil noise prediction method based on generalized airfoil sets and residual neural networks. …”
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  14. 1774

    Estimation of chlorophyll content in rice canopy leaves based on main base analysis and dimensionality reduction method by YUAN Weinan, XU Tongyu, CAO Yingli, WANG Yang, YU Fenghua

    Published 2018-07-01
    “…The results showed that the modeling coefficient of determination (R<sup>2</sup>) was 0.689, with the root mean square error (RMSE) of 2.20, and the RMSE of validation model was 1.20. …”
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  15. 1775

    Extraction kinetics of saponins from quinoa seed (Chenopodium quinoa Willd) by R. M. Torrez Irigoyen, S. A. Giner

    Published 2018-10-01
    “…&nbsp;A spectrophotometric method was proposed to determine total saponins content, while an unsteady state diffusional model was applied to this extraction problem, assuming strict internal control to the mass transfer rate. …”
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  16. 1776

    Multi-criteria Comprehensive Evaluation of Multi-energy Complementary System Based on AHP-EWM and TOPSIS Method by Kaihua JIA, Yunxia YU, Xiubo FAN, Maoxuan LI, Dong WANG, Cuicui TANG, Zhang JI

    Published 2023-07-01
    “…The operation strategy of multi-energy complementary system affects the economy, environment and energy utilization efficiency of power system. To select an optimal operation strategy of the multi-energy complementary system, firstly, the index weights were determined by the integrated weight method combining the analytic hierarchy process and the entropy weight method, and the TOPSIS was introduced to rank the operation strategies. …”
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  17. 1777

    A new method to solve multi-objective linear fractional programming problem in fuzzy stochastic environment by Ajeet Kumar, Babita Mishra

    Published 2025-07-01
    “…The proposed method constructs an expectation model based on the mean of the fuzzy random variable. …”
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  18. 1778

    Increase of informativity of two-frequency method of defectometry at ultrasonic control of details and units of railway rolling stock by A. N. Kireev

    Published 2018-06-01
    “…Author proposed a solution for the improvement of the two-frequency defectometry method. A mathematical apparatus was developed and a method for determining the coefficient of the discontinuity shape was elaborate on its basis. …”
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  19. 1779

    Development of a method of comparative analysis based on consumer properties of polymer compositions illustrated by adhesive plates by M. A. Mandrik, S. A. Albagachiev, L. A. Korol, E. A. Shemetova, I. I. Krasnyuk, G. V. Ramenskaya, I. A. Sadkovskii

    Published 2025-06-01
    “…To determine the weighting coefficients of various consumer characteristics of adhesive plates, a survey of experts was conducted.Results and discussion. …”
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  20. 1780

    Online Estimation and Control Method of Optimal Slip Ratio for Vehicle With an Electric Power-Assisted Brake System by Lei Chen, Yuchao He, Tangtang Ma, Shengshi Zhong

    Published 2024-01-01
    “…During the identification, the initial value selection method and the segmented mean method are combined to improve accuracy and efficiency. …”
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