Showing 1,141 - 1,160 results of 1,556 for search '(variable OR variables) model composition', query time: 0.17s Refine Results
  1. 1141

    Comparison of torch with electric arc casting in the lost wax technique for the cast dental stud protocol. by Víctor Hugo Gonzalo Quispe Mamani, César Alberto Luna Castillo, Dina Miryan Alanoca Sejje, Luis Alexander Orrego-Ferreyros

    Published 2025-01-01
    “…The Mann-Whitney U test confirmed significant differences in cost distributions (p < 0.001), indicating that EAC has higher and more variable costs. In conclusion, the study demonstrates that EAC produces dental models with significantly higher compressive strength and a more refined microstructure compared to TC, enhancing restoration durability. …”
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  2. 1142

    Optimasi Proses Ekstraksi Oleoresin Jahe (Zingiber officinale Rosc) Menggunakan Ultrasonik by Sri Hartuti, Muhammad Dani Supardan

    Published 2012-06-01
    “…Response surface design method with Central Composite Design (CCD) was used to obtain a mathematical model which describes the relationship between the yield of ginger oleoresin and influencing variables. …”
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  3. 1143

    Host genome drives the microbiota enrichment of beneficial microbes in shrimp: exploring the hologenome perspective by Fernanda Cornejo-Granados, Luigui Gallardo-Becerra, Sandra Romero-Hidalgo, Alonso A. Lopez-Zavala, Andrés Cota-Huízar, Melany Cervantes-Echeverría, Rogerio R. Sotelo-Mundo, Adrian Ochoa-Leyva

    Published 2025-05-01
    “…After confirming that the rearing pond did not significantly influence the microbiota composition, we determined that genetic differences explained 15.8% of the microbiota variability, with a stronger selective pressure in the hepatopancreas than in the intestine. …”
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  4. 1144

    Late Quaternary fluctuation in upper range limit of trees shapes endemic flora diversity on the Tibetan Plateau by Jinfeng Xu, Tao Wang, Xiaoyi Wang, Christian Körner, Xianyong Cao, Eryuan Liang, Yongping Yang, Shilong Piao

    Published 2025-02-01
    “…However, it remains unclear how the upper paleo-range limit of trees, which dictated the habitat of endemic alpine species, affects the variability in endemic alpine species composition across space over the Tibetan Plateau. …”
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  5. 1145

    Milk Fatty Acids as Potential Biomarkers of Enteric Methane Emissions in Dairy Cattle: A Review by Emily C. Youngmark, Jana Kraft

    Published 2025-07-01
    “…This review examines the relationship between enteric CH<sub>4</sub> emissions and milk fatty acid (FA) composition, highlights key FA groups with potential as biomarkers for indirect CH<sub>4</sub> estimation, and outlines critical factors of predictive model development. …”
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  6. 1146

    Analysis of Syngas Combustion Process in Piston Engines by Mytrofanov O., Proskurin A., Kong W.

    Published 2024-11-01
    “…The significance of the obtained results lies in the establishment of the variability of the combustion index m (ranging from 1.6 to 5.5) in Professor I.I.Vibe's semi-empirical heat release model, which more closely corresponds to the actual heat release law ob-served in experimental studies. …”
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  7. 1147

    Epidemiology of bacterial biofilms on polyps and normal tissues in a screening colonoscopy cohort by Julia L. Drewes, Samara B. Rifkin, Madison McMann, Sara Glass, Emma Spence, Caroline R. Wensel, Abby L. Geis, Courtney Stevens, Joell J. Gills, Hao Wang, Linda M. Hylind, Gerard Mullin, David Kafonek, David Cromwell, Louis La Luna, Francis M. Giardiello, Cynthia L. Sears

    Published 2025-12-01
    “…Procedural, demographic, and lifestyle predictors of bacterial scores were evaluated using multivariable proportional odds regression models.Results Procedural variables that negatively impacted bacterial scores and biofilm detection included smaller biopsy forcep size, physician, bowel preparation type, and shorter times from bowel preparation completion to colonoscopy. …”
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  8. 1148

    Comprehensive evaluation of six interventions for hospitalized patients with COVID-19: A propensity score matching study by Ali A. Alshamrani, Ahmed M. Assiri, Omar A. Almohammed

    Published 2023-04-01
    “…Lastly, an independent t-test and chi-square test were used to compare the matching groups in the aspects of the duration of hospitalization, length of stay (LOS) in intensive care units (ICU), in-hospital mortality, and composite poor outcome. Multilevel logistic regression model was used to assess the association between the severity stage of COVID-19 and the outcomes while using the medication or intervention used as a grouping variable in the model. …”
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  9. 1149

    AI driven prediction of early age compressive strength in ultra high performance fiber reinforced concrete by Mohamed Abdellatief, Wafa Hamla, Hassan Hamouda

    Published 2025-06-01
    “…Additionally, feature importance analysis was implemented to explore the influence of the input variables on the early-age CS. Results indicate that GPR and SVR models with high predictive accuracy (R2 > 0.90) outperformed ANN, RF, and GB models. …”
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  10. 1150

    A novel waste heat-driven methane reforming membrane reactor and parametric optimization study combining CFD simulation and response surface methodology by Jingyu Wang, Lei Wang, Leilei Shen, Yuqi Shen, Yuqi Wang

    Published 2025-06-01
    “…A multi-physics coupling model of the reactor was developed through computational fluid dynamics (CFD) simulations. …”
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  11. 1151

    Environmental preferences of green sea turtles (Chelonia mydas) for egg-laying on a fringing reef pocket beach, Mayotte Island by Sophie Morisseau, Sophie Morisseau, Matthieu Jeanson, Matthieu Jeanson, Sarah Charroux, Sarah Charroux, Yann Mercky, Charles Le Bozec, Michel Charpentier, Lucas Le Gall, Cyrielle Delvenne, Marc Girondot, Elliott Sucré, Elliott Sucré, Damien Chevallier

    Published 2025-04-01
    “…This preference seems to be linked more to elevation, where black sand is mainly found at the top of the beach, rather than an intentional choice based on sand composition. No significant egg-laying site-related variables were found to explain the variations in nest depth. …”
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  12. 1152

    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
    “…Percentiles of normality for muscle function were described by sex and age (20-39, 40-59, and >60 years). 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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  13. 1153

    Factorial Structure and Measurement Invariance of the General Atitudes Toward Artificial Intelligence Scale for University Students by Mohammed Mosa AlShamrani

    Published 2025-04-01
    “…The results confirmed that the scale has high reliability and validity and is unbiased regarding the gender variable. The study also confirms the suitability of the instrument for measuring general attitudes toward artificial intelligence (AI) among university students. …”
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  14. 1154

    AI-based prediction for the strength, cost, and sustainability of eggshell and date palm ash-blended concrete by Quanwei Zhao, Qi Chen, AlAteah Ali H., Alfares Abdulgafor M., Alinsaif Sadiq, Mostafa Sahar A.

    Published 2025-05-01
    “…Eggshell powder (ESP) and date palm ash (DPA) are increasingly used as sustainable cement substitutes in cementitious composites. This study used multi-expression programming (MEP) to develop prediction models due to its advantage of yielding model equations. …”
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  15. 1155

    Multi-criteria decision-based optimization and multivariable regression analysis of date palm fiber reinforced concrete modified with silica fume under normal and elevated temperat... by Musa Adamu, Ashwin Narendra Raut, Yasser E. Ibrahim, Hani Alanazi, Omar Shabbir Ahmed

    Published 2025-02-01
    “…Abstract Considering its affordability and accessibility, the deployment of date palm fiber (DPF) in cement composites is progressively escalating. However, the primary downside of DPF in cementitious composite is its deleterious effect on the properties of the composite. …”
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  16. 1156

    Improved soil salinity estimation in arid regions: Leveraging bare soil periods and environmental factors by Weitong Ma, Xin Cui, Wenting Han, Huihui Zhang, Liyuan Zhang

    Published 2025-08-01
    “…This study explores a novel approach to improve soil salt content (SSC) monitoring by minimizing the influence of long-term environmental variability and incorporating relevant environmental factors. …”
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  17. 1157
  18. 1158

    Autovole processes in deprivation plasma coatings by S.A. Guchenko, E.N. Eremin, V.M. Yurov, V.Ch. Laurinas, S.S. Kasimov, O.N. Zavatskaya

    Published 2018-12-01
    “… Autowave processes that arise when depositing plasma coatings are considered. Composite cathodes and stainless steel cathodes were used for the production of coatings. …”
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  19. 1159

    Community knowledge, perceptions and practices around COVID-19 in Sierra Leone: a nationwide, cross-sectional survey by Maike Winters, Helena Nordenstedt, Mohammad B Jalloh, Paul Sengeh, Nance Webber, Ibrahim Ngobeh, Thomas Samba, Harold Thomas

    Published 2020-09-01
    “…Objectives To assess the public’s knowledge, attitudes and practices about the novel coronavirus in Sierra Leone to inform an evidence-based communication strategy around COVID-19.Design Nationwide, cross-sectional Knowledge, Attitudes and Practices survey.Setting 56 randomly selected communities in all 14 districts in Sierra Leone.Participants 1253 adults aged 18 years and older of which 52% were men.Main outcome measures We calculated proportions of core indicators (awareness, knowledge, risk perception, practices). A composite variable for knowledge (based on seven variables) was created, and categorised into low (0–2 correct), medium (3–4) and high (5–7). …”
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  20. 1160

    An efficient homogenization method using the trigonometric interpolation and the fast fourier transform by Ngoc-Trung Nguyen, Christian Licht, Jin-Hwe Kweon

    Published 2011-12-01
    “… This study focuses on formulation of the Augmented Lagrangian and application of the Uzawa's algorithm to solve the homogenization problem of microscopic periodic media as in composites. Unlike in the finite element model, an equally spaced grid system associated with the microstructure domain is used instead of a finite element mesh topology. …”
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