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Showing 301 - 320 results of 1,868 for search 'variable model (decomposition OR composition)', query time: 0.20s Refine Results
  1. 301

    Acid Aging of CFRP Composite Materials for Solar UAV Structure by Bing Shen, HongJun Liu, Shengli Lv, Zheng Li, Wen Cheng

    Published 2021-01-01
    “…Several typical empirical models were analyzed, and a hyperbolic tangent function empirical model with moisture content as the main variable was used to predict the CFRP flexural strength degradation process, and good results were obtained. …”
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  2. 302
  3. 303

    OPTIMIZATION DESIGN OF COMPOSITE DRILL-BIT SPHERICAL SLIDING BEARING by WU KaiSong, YAN CaiXiu, DENG Tao, ZHAO Pan, JIA TongWei

    Published 2015-01-01
    “…Therefore,the ANSYS finite element analysis was adopted to establish the spherical composite bearing three-dimensional model; Used the contact finite element calculation to comparison and analysis the surface pressure distribution size and regularity of spherical and cylindrical; Lastly,used the spherical radius as design variables and the peak contact pressure as objective function establish composite bit sliding bearing optimization design model. …”
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  4. 304

    Biomechanics over body composition: what matters most in the 40 by Emma Sterne, Chukwudum Okpalaoka, Pavan Patel, Alexa Fraga, Caitlin Kucharski, Pete Bommarito, Monique Mokha

    Published 2025-12-01
    “…A multiple linear regression model was developed using the stepwise technique to predict post-training 40 times from post minus pre changes (Δ) in running biomechanics and body composition variables, p < .05.Results The fitted regression model was 4.654 – 0.972 * (ΔLMM) − 0.961 * (ΔBF%) − 10.078 (ΔGCT) + 0.048 * (ΔvGRF). …”
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  5. 305

    Effect of Oak Wood Aging on Chemical Composition of Wheat Distillate by Natalya V. Shelekhova, Irina M. Abramova, Tamara M. Shelekhova, Liubov I. Skvortsova, Natаlya V. Poltavskaya

    Published 2025-03-01
    “…The thermal treatment mode and extraction time were variables. The authors developed a set of express methods to define the composition of volatile organic impurities and the ionic composition of grain distillates. …”
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  6. 306

    Mechanical Properties and Strength Grading of Engineered Bamboo Composites in China by Siyuan Tang, Aiping Zhou, Jiannan Li

    Published 2021-01-01
    “…Engineered bamboo composite (EBC) is a new high-strength anisotropic structural material, which has standardized sections and less inherent variability than the natural material. …”
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  7. 307

    Multidimensional Meteorological Variables for Wind Speed Forecasting in Qinghai Region of China: A Novel Approach by He Jiang, Luo Shihua, Yao Dong

    Published 2020-01-01
    “…The objective is to develop a hybrid model with multidimensional meteorological variables for forecasting the wind speed accurately. …”
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  10. 310

    Variable-Step Semi-Implicit Solver with Adjustable Symmetry and Its Application for Chaos-Based Communication by Vyacheslav Rybin, Ivan Babkin, Yulia Bobrova, Maksim Galchenko, Alexander Mikhailov, Timur Karimov

    Published 2025-04-01
    “…We show that the VS-MCD method is capable of changing the dynamics of the solution by changing the symmetry coefficient (reflecting the ratio between two internal steps within the composition step), which is useful for tuning the dynamics of the obtained discrete model, with no influence of the appropriate step size. …”
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  13. 313

    Simulation of distribution of forces in traction circuit tracked chassis under conditions of variability ground resistance by K.A. Goncharov

    Published 2023-06-01
    “…This article describes the results of mathematical modeling of the distribution of forces in the traction circuits of tracked chassis under conditions of variability in resistance to soil movement that occurs when the machine is operating at the junctions of soil layers, as well as in soils with a mixed composition. …”
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  14. 314

    Quantification of the Spectral Variability of Ore-Bearing Granodiorite under Supervised and Semisupervised Conditions: An Upscaling Approach by Yaron Ogen, Michael Denk, Cornelia Glaesser, Holger Eichstaedt, Rene Kahnt, Ralf Loeser, Rudolf Suppes, Munkhjargal Chimeddorj, Tugsbuyan Tsedenbaljir, Undrakhtamir Alyeksandr, Tsedendamba Oyunbuyan

    Published 2021-01-01
    “…Hence, the spectral variability of the surface of an uncrushed rock will, in most cases, be higher than the internal chemical-mineralogical variability, which may impair statistical models built on field measurements. …”
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  15. 315

    Spatial Variability of Soil Organic Carbon Stock in Gurje Subwatershed, Hadiya Zone, Southern Ethiopia by Temesgen Addise, Bobe Bedadi, Alemayehu Regassa, Lemma Wogi, Samuel Feyissa

    Published 2022-01-01
    “…The ordinary kriging (OK) method was used as a geostatistical tool and applied to model the spatial variability of soil organic carbon in this study. …”
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  16. 316

    Variable Selection for Multivariate Failure Time Data via Regularized Sparse-Input Neural Network by Bin Luo, Susan Halabi

    Published 2025-05-01
    “…This study addresses the problem of simultaneous variable selection and model estimation in multivariate failure time data, a common challenge in clinical trials with multiple correlated time-to-event endpoints. …”
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  17. 317

    Hip Fractures: Clinical, Biomaterial and Biomechanical Insights into a Common Health Challenge by Yunhua Luo

    Published 2025-05-01
    “…However, current clinical tools, such as FRAX, have notable limitations in accurately assessing fracture risk in individuals due to their reliance on statistical models, the treatment of interdependent risk factors as independent, and the omission of key variables like diabetes. …”
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  18. 318

    Optimization on the Mechanical Properties of Aluminium 8079 Composite Materials Reinforced with PSA by Mohamad Reda A. Refaai, R. Meenakshi Reddy, Jayaprakash Venugopal, M. Venkata Rao, K. Vaidhegi, Simon Yishak

    Published 2022-01-01
    “…Mixture design with Design-Expert (Stat EASY) software package indicated the appropriate matrix and reinforcing combination proportions and how they influenced composites’ studied properties. Composites’ physical and mechanical properties were predicted and optimized using regression models created and the ideal mixture of matrix and reinforcement wt. …”
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  19. 319

    The relationship between the inflation rate and the unemployment rate in Poland and their long-term associations with selected macroeconomic variables by Jan Koterwa, Hubert Kycia, Anna Czapkiewicz

    Published 2024-04-01
    “…The impulse response function and forecast error variance decomposition were also used to examine the interactions between variables. …”
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  20. 320

    Composite quantile regression approach to batch effect correction in microbiome data by Jiwon Park, Taesung Park

    Published 2025-02-01
    “…Additionally, to handle nonsystematic batch effects, we employ composite quantile regression. By adjusting the distribution of OTUs to be similar based on a reference batch selected using the Kruskal-Walis test method, we consider the variability at the OTU level.ResultsThe performance of the model is evaluated and compared with existing methods using PERMANOVA R-squared values, Principal Coordinates Analysis (PCoA) plots and Average Silhouette Coefficient calculated with diverse distance-based metrics. …”
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