Showing 1,101 - 1,120 results of 1,556 for search '(variable OR variables) model composition', query time: 0.25s Refine Results
  1. 1101
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  3. 1103

    Optimization of Parameters of Two-Beam Laser Twelding of Quartz Raw Materials by V. A. Emelyanov, E. B. Shershnev, Y. V. Nikitjuk, S. I. Sokolov, I. Y. Aushev

    Published 2023-01-01
    “…Using the face-centered version of the central compositional plan of the experiment, a regression model of two-beam cleaning of quartz raw materials was obtained. …”
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  4. 1104

    Association between the nutritional inflammation index and mortality among patients with sepsis: insights from traditional methods and machine learning-based mortality prediction by Yuanshuo Ge, Ding Hu, Zhe Wang, Cheng Zhang

    Published 2025-08-01
    “…The association between ANLR and mortality was investigated through Kaplan-Meier survival analysis, Cox regression, and restricted cubic spline (RCS) modeling. Furthermore, the contribution of ANLR relative to other predictors was evaluated by developing machine learning models, with SHapley Additive exPlanations (SHAP) employed to determine variable importance. …”
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  5. 1105

    Genetic structure of the European hedgehog (Erinaceus europaeus) in Denmark. by Sophie Lund Rasmussen, Jeppe Lund Nielsen, Owen R Jones, Thomas B Berg, Cino Pertoldi

    Published 2020-01-01
    “…We estimated individual observed (iHO), observed (HO), and unbiased expected (uHE) heterozygosity, inbreeding coefficient (FIS), percentage of polymorphic loci (P%) and tested for deviations from Hardy-Weinberg equilibrium (HWE). We used linear models to test for potential anthropogenic effects on the genetic variability of hedgehogs with iHO, uHE, P% and FIS as response variables, and assessed the demographic history of the population.…”
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  6. 1106

    Predicting Strength Properties of High-Performance Concrete Modified with Natural Aggregates and Ferroslag under Varied Curing Conditions by Muthumani Soundararajan, Sridhar Jayaprakash, S. K. Maniarasan, Ravindran Gobinath

    Published 2023-01-01
    “…Further, natural aggregate, ferro slag, and duration of curing were considered as basic variables to suggest the model. Regression models for response data were evaluated using analysis of variance (ANOVA) and Pareto charts. …”
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  7. 1107

    Optimization of dye effluent decolorization by halotolerant Halomonas strain D2 in static culture condition by Ali Partovinia, Maryam Otadi, Amirhossein Alaedini

    Published 2019-12-01
    “…Biodegradation of dye was investigated by 30 experiments according to the Central Composite Design (CCD) and RSM. According to previous related research performed by one factor at time (OFAT), the effects of four variables of dye concentration, NaCl salt concentration, pH, and temperature on bioremediation at 10-30 ppm, 2-10 %, 5.5-9.5 and 20-40 °C, respectively, were studied. …”
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  8. 1108

    Optimization of ultrasound-assisted extraction of glycyrrhizic acid from licorice using response surface methodology by Seol Jang, A. Yeong Lee, A. Reum Lee, Goya Choi, Ho Kyoung Kim

    Published 2017-12-01
    “…Results: Statistical analyses revealed that three variables and the quadratic of X1, X2, and X3 had significant effects on the yields and were followed by significant interaction effects between the variables of X2 and X3 (p < 0.01). …”
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  9. 1109

    The Role of Cognitive Performance in Older Europeans’ General Health: Insights from Relative Importance Analysis by Eleni Serafetinidou, Christina Parpoula

    Published 2025-03-01
    “…Participants were classified into good or poor health status, and logistic regression models assessed the predictive significance of cognitive variables on general health, supplemented by a relative importance analysis to estimate relative effect sizes. …”
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  10. 1110

    Spatiotemporal Multivariate Weather Prediction Network Based on CNN-Transformer by Ruowu Wu, Yandan Liang, Lianlei Lin, Zongwei Zhang

    Published 2024-12-01
    “…After that, in order to ensure that the model has better prediction ability for global and local hotspot areas, we designed a composite loss function based on MSE and SSIM to focus on the global and structural distribution of weather to achieve more accurate multivariate weather prediction. …”
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  11. 1111

    A dataset of tracked mesoscale precipitation systems in the tropics by James Russell, Manikandan Rajagopal, Peter Veals, Gregor Skok, Edward Zipser, Michell Tinoco‐Morales

    Published 2025-04-01
    “…The TIMPS dataset provides the means for detailed long‐term and large‐scale study of MCSs in all regions of the tropics with applications such as composite studies of MCS life cycles and the evaluation of model performance.…”
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  12. 1112

    Assessing Attitudes Toward Science, Technology, Engineering, and Mathematics (STEM) for Enhancing Creativity in Secondary Education [Evaluación de actitudes hacia la ciencia, tecno... by Mujib, Mardiyah Mardiyah

    Published 2024-12-01
    “…Reliability values for the four factors ranged between .73 and .94 with Cronbach Alpha, while those for composite reliability ranged between .97 and .97. The relationship between variables in attitudes toward the STEM instrument identified various path coefficients and effect sizes, indicating strong correlations between the STEM attitude variables. …”
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  13. 1113
  14. 1114

    Assessment of quality of maternal and newborn care and its determinants: a national study of primary health care facilities in Nigeria by Toluwani Oluwatola, Saheed Dipo Isiaka, Oluomachukwu Omeje, Folake Oni, Olugbemisola W. Samuel, Sidney Sampson, Hilda Ebinim, Oluwadamilare Olatunji, Oluwafisayo Ayodeji, Dolapo Ajibola, Stallone Ngobua, Oluwafunmilayo Dehinbo, Helen Ukoh, Leyira Ken-Aminikpo, Segun Adenipekun, Hilary I. Okagbue

    Published 2025-07-01
    “…There were significant variations in the mean PHC facility QoC across states, with Katsina and Ondo states having the lowest (1.35) and highest (2.98) QoC, respectively. The regression model showed that the contextual variables analyzed accounted for 31.5% of the variation in QoC, with varying statistically significant relationships with the QoC. …”
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  15. 1115

    Detecting fish community structure in open waters using environmental DNA: a case study from the central South China Sea by Ting Chen, Ting Chen, Shuai Zhang, Shuai Zhang, Shuai Zhang, Peiwen Jiang, Zuozhi Chen, Zuozhi Chen, Jun Zhang, Jun Zhang, Shannan Xu, Shannan Xu, Shannan Xu, Min Li, Min Li, Min Li

    Published 2025-03-01
    “…Additionally, generalized additive models (GAMs) were applied for the 5 m and 200 m depth layers to assess the influence of environmental variables on fish communities. …”
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  16. 1116

    Statistical Optimization of Culture Conditions for Enhanced Biomass Yield of Lactobacillus acidophilus CM1 Using Plackett–Burman and Response Surface Methodology by Khushboo Rajput, Amar Yasser Jassim, Ameer Abbas Mohammed, Abdel Rahman Mohammad Said Al-Tawaha, Arun Karnwal, Tabarak Malik

    Published 2025-01-01
    “…Using the Plackett–Burman design (PBD), 11 physical and chemical variables were screened, of which pH, temperature, NaCl concentration, and inoculum size were found to significantly influence cell growth (p<0.05). …”
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  17. 1117

    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
    “…The scale optimization model of the landing mechanism, based on the composite shape method and iterative calculation through Matlab software, the optimal scale parameters of each component of the boom lift chain are obtained, and the maximum load of the boom lift cylinder is reduced by about 11%, effectively improving the dynamic performance of the mechanism. …”
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    Total bilirubin as a marker for hemolysis and outcome in patients with severe ARDS treated with veno-venous ECMO by Victoria Bünger, Mario Menk, Oliver Hunsicker, Alexander Krannich, Felix Balzer, Claudia D. Spies, Wolfgang M. Kuebler, Steffen Weber-Carstens, Jan A. Graw

    Published 2025-03-01
    “…Baseline characteristics were compared and relevant variables were included in a multivariate logistic regression model with backward variable selection. …”
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  20. 1120

    Optimization of medium components for the production of exopolysaccharide by Lycoperdon pyriforme Schaeff.: Pers. using response surface methodology by MA Xiaokui, JIANG Hua, LI Junzhi, CHEN Yong, HE Xiaojing

    Published 2013-09-01
    “…A second-order polynomial models with EPS yield as response variable was then obtained and confirmed to adequately represent the actual relationship between the independent variables and responses through validation tests. …”
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