Showing 801 - 820 results of 2,280 for search '(( variable function efficiency. ) OR ( variables function (coefficient. OR efficient.) ))', query time: 0.22s Refine Results
  1. 801

    Variabilidad espacial y diaria del contenido de humedad en el suelo en tres sistemas agroforestales Spatial and daily variability of soil moisture content in three agroforestry sys... by Mariela Rivera Peña, Edgar Amézquita Collazos, Idupulapati Rao, Juan Carlos Menjivar Flores

    Published 2009-04-01
    “…The geo-statistical analysis showed that the random component of the spatial dependence was predominant over the nugget effect. The functions of semivariograms, structured for each variable were used to generate maps of interpolated contours at a fine scale. …”
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  2. 802

    Validation of a Gymnastic Functional Measurement Tool in Technical Skill Classification of Men’s Competitive Gymnasts: A Field Study by Zaher Ashour, Hassan Daneshmandi, Hossein Fakoor Rashid

    Published 2024-10-01
    “…Pearson and Spearman correlation tests were used to check the relationship between variables. The data were analyzed using SPSS software, with a significance level of P≤0.05.Results: The correlation coefficient tests revealed a positive and significant relationship between the gymnastics functional measurement tool scores and the technical skill score of ground movements, as well as the overall technical score of the competition. …”
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  3. 803

    Duality Revelation and Operator-Based Method in Viscoelastic Problems by Zelin Liu, Xiaobin Yu, Yajun Yin

    Published 2025-04-01
    “…By incorporating a damage-based variable coefficient, the model now also accounts for the accelerated creep phase of rocks, capturing damage evolution under prolonged loading. …”
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  4. 804

    Association of the Ratio of Second to Fourth Digit Length and Phthalate Exposure With Sexual Function in Japanese Men Seeking Fertility Treatment by Kazumitsu Yamasaki, Masahiro Uchida, Yuki Mizuno, Teruaki Iwamoto, Shoko Konishi

    Published 2025-06-01
    “…One standard deviation increase of mono-methyl phthalate was negatively associated with IIEF domains A (erectile function; exponentiated coefficient, 0.95; exponentiated 95% confidence interval, CI, [0.91, 0.98]) and D (intercourse satisfaction; exponentiated coefficient, 0.91; exponentiated [0.85, 0.97]). …”
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  5. 805

    Regularized sum for eigenfunctions of multi-point problem in the commensurable case by S. A. Saleh

    Published 1998-01-01
    “…In series (0.3) σ is an integer, while Rk,s(σ,x,ξ,ρ) is a function of variables x,ξ, and defined in the square [0,π]x[0,π] which ensure the convergence of the series (0.3).…”
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  6. 806

    Relationship between diet health quality and the level of functional fitness and quality of life among Polish women aged 60+ by Maria Krystyna Gacek, Agnieszka Wojtowicz, Grażyna Kosiba, Magdalena Majer, Joanna Gradek, Olga Czerwińska-Ledwig

    Published 2025-06-01
    “…Relationships between the variables were evaluated using Spearman’s R signed rank correlation coefficients in the IBM SPSS 21 program. …”
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  7. 807

    Network relationship between cognitive function and quality of life in community-dwelling older adults: an observational study from Beijing by Yitian Ye, Yichun Zhang, Jiaju Ren, Yanbo Zhu, Yanbo Zhu

    Published 2025-02-01
    “…Network analysis graphs were developed to investigate the interrelationships among variables, identify central nodes, and evaluate stability.ResultsIn the network, the dimensions of social functioning, role-physical, physical functioning, general health, vitality, orientation, and language showed high centrality strength. …”
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  8. 808

    The varied Q creatinine in multi ethnics population and impact of adopting three different estimated glomerular filtration rates based on creatinine in adult populations: a call fo... by Ferdy Royland Marpaung, Santi Wulan Purnami, Shofi Andari, Ali Rohman, Reny I’tishom, Hari Basuki Notobroto, Jusak Nugraha, Risky Vitria Prasetyo, Djoko Santoso, Etienne Cavalier, Aryati Aryati

    Published 2025-03-01
    “…Ultimately, in order to compare the equations, Lin’s correlation coefficients were calculated for various eGFR categories.ResultsThe median creatinine level in the different island population showed variability. …”
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  9. 809
  10. 810

    Impacts of oral health on life quality metrics: correlations with job function, psychological well-being, self-perception, and dietary behavior by Mohammad Helmi

    Published 2025-05-01
    “…IntroductionThis study evaluates the impact of oral health issues on critical areas of daily functioning, including job performance, psychological well-being, self-rated oral health, and dietary habits.MethodsUtilizing NHANES data, the analysis applies Pearson correlation, multiple regression, and data visualization techniques (scatter plots, heatmaps, and box plots) to quantify associations between oral health variables, such as mouth aching (OHQ620), food avoidance (OHQ660), job difficulty due to mouth issues (OHQ640), and embarrassment (OHQ680).ResultsStrong correlations were found between mouth aching and job difficulty due to mouth issues, with a Pearson correlation coefficient of 0.99, and between difficulty eating (OHQ670) and job difficulty due to mouth issues, with a coefficient of 0.98. …”
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  11. 811

    Modeling Spatial Data with Heteroscedasticity Using PLVCSAR Model: A Bayesian Quantile Regression Approach by Rongshang Chen, Zhiyong Chen

    Published 2025-07-01
    “…Through an approximation of the nonparametric functions with free-knot splines, we develop a Bayesian sampling approach that can be applied by the Markov chain Monte Carlo (MCMC) approach and design an efficient Metropolis–Hastings within the Gibbs sampling algorithm to explore the joint posterior distributions. …”
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  12. 812

    Task-based functional connectivity in infants after exposure to regular white noise during natural sleep measured by fNIRS by Kanghui Li, Yong Zhang, Zhaohui Wang

    Published 2025-08-01
    “…Different individual infants show different changes in brain functional connectivity after receiving the same stimulus. …”
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  13. 813

    Isokinetic assessment of muscle function according to physical activity level and cardiovascular risk in asymptomatic adults aged 20 to 80 years by V.Z. Dourado, M.B. Nascimento, R.C. Navarro, R.P. da Silva, B.B. Gonze, K.M. Guedes, V.T. Lauria, W.O. Vieira, T.L.V.D.P. Ostolin

    Published 2025-03-01
    “…The models accounted for 49.6-70.9% of the total variability of muscle function, but MVPA and cardiovascular risk slightly influenced the coefficient of determination (additional ΔR2=0.003-0.006). …”
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  14. 814

    The Cognitive Correlates of Obsessive-Compulsive Disorder: The Predictive Role of Looming Maladaptive Style, Executive Function, Thought-Action Fusion and Metacognition by Maryam Koosheshi, Rahim Yousefi, Ladan Vaghef

    Published 2024-08-01
    “…Descriptive measures of dispersion were used to characterize the research variables, while Pearson’s correlation coefficient and multiple regression analysis were utilized for inferential statistics.   …”
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  15. 815

    SELECTING OPTIMAL PROCESS PARAMETERS OF Al2O3/C COMPOSITE USING GRA WITH PCA AND TAGUCHI’S QLF APPROACH by Idrus Syahzaqi, Hani Brilianti Rochmanto, Muhammad Ahsan

    Published 2022-09-01
    “…In this research, statistical analysis is carried out using GRA with PCA and Quality Loss Function.  The result was the best model based on the Quality Loss Function, because the method has the biggest determination coefficient value is 99,97% where the results is better than GRA with PCA. …”
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  16. 816

    Evapotranspiração máxima do pimentão cultivado em estufa plástica em função de variáveis fenométricas e meteorológicas Maximum evapotranspiration of sweet pepper grown in plastic g... by Carina R. Pivetta, Arno B. Heldwein, Ivan C. Maldaner, Sidinei Z. Radons, Ivonete F. Tazzo, Dionéia D. Lucas

    Published 2010-07-01
    “…<br>The objective of this study was to estimate maximum evapotranspiration (ETm) of sweet pepper inside a plastic greenhouse as a function of evaporation measured with "Piche" evaporimeter (Epi) exposed to solar radiation, with and without easily measured meteorological and phenologic variables. …”
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  17. 817

    A Method for Determining Intrinsic Mode Function Number in Variational Mode Decomposition and Its Application to Bearing Vibration Signal Processing by Shoujun Wu, Fuzhou Feng, Junzhen Zhu, Chunzhi Wu, Guang Zhang

    Published 2020-01-01
    “…The number (usually denoted by K) of intrinsic mode function (IMF) has a great influence on decomposition results. …”
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  18. 818

    Experimental method to predict avalanches based on neural networks by V. V. Zhdanov

    Published 2016-12-01
    “…Observational data on weather and avalanches in the gorge Kishi Almaty in the gorge Kishi Almaty were used as a training sample. Coefficients for the canonical variables were calculated by the software «Statistica» (Russian version 6.0), and then the necessary formula had been constructed. …”
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  19. 819

    Energy optimization through morphing blade design under structural constraints: a case study on the NREL 1.5 MW wind turbine by Najafian Arezoo, Jahangirian Alireza

    Published 2025-01-01
    “…The morphing process is modeled using an m-degree shape function and optimized through a Genetic Algorithm (GA) to maximize power generation while minimizing structural displacement and thrust forces. …”
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  20. 820

    Discriminative Validity and Reliability of the Single-Leg Squat and Single-Leg Landing Frontal Plane Kinematics in Individuals with Lower Limb Functional Deficits by Jean Marlon Machado, Marcelo Peduzzi de Castro, Amandda de Souza, Carlos Alberto Atherinos Pierri, Francisco Xavier de Araujo, Heiliane de Brito Fontana, Caroline Ruschel

    Published 2025-04-01
    “…It is necessary to identify variables and tests with adequate reliability and with the capability to discriminate individuals with and without lower limb functional deficits. …”
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