Showing 821 - 840 results of 1,556 for search '(variable OR variables) model composition', query time: 0.17s Refine Results
  1. 821

    Prediction of Changes in the Tax Burden of Land Plots with the Use of Multivariate Statistical Analysis Methods by Krzysztof Dmytrów, Sebastian Gnat

    Published 2019-01-01
    “…They were the explanatory variables in the logistic regression model. Next, for the test set, changes of tax burden were forecasted. …”
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  2. 822

    Regional simulations of equatorial spread F driven with, and an analysis of, WAM-IPE electric fields by Aaron Kirchman, David Hysell, Tzu-Wei Fang

    Published 2025-01-01
    “…The WAM-IPE electric fields are then studied through a simple sensitivity analysis of a field-line integrated electrodynamics model similar to the one used in WAM-IPE. This analysis suggests there is no simple tuning of ion composition or neutral winds that accurately reproduce ISR-observed electric fields on a day-to-day basis. …”
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  3. 823

    Optimization of Particle Size and Addition of Vinasse Waste to Improve Characteristics of Rice Husk Charcoal Briquettes by Sintha Soraya Santi, Tsania Putri Azzahra, Dian Rizka Salfana, Timotius Pasang

    Published 2024-08-01
    “…This study aims to determine the optimal conditions for the particle size of husk charcoal and the addition of vinasse waste as an independent variable, using the Response Surface Methodology and the Central Composite Design (CCD) method on Design Expert 13 software. …”
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  4. 824

    LIGHTWEIGHT DESIGN FOR OVERHAUL TOOLING SUPPORT SEAT BASED ON TOPOLOGY OPTIMIZATION AND SIX SIGMA ROBUSTNESS by WANG ZiNing, WU JianJun, XIANG JianMing, WANG BaiSong, JIN YingQi

    Published 2020-01-01
    “…Support seat’s topology structures was extracted based on topology optimization with variable density method. The response surface model was established based on the central composite design method and the finite element numerical simulation technique. …”
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  5. 825

    Public spending mechanisms and gross domestic product (GDP) growth in the agricultural sector (1970–2016): Lessons for Nigeria from agricultural policy progressions in China by Apata Temidayo Gabriel

    Published 2019-06-01
    “…The study examines the level and composition of the drivers of public-spending policy mechanisms that contribute to gross domestic product (GDP) growth in the agricultural sector in China and Nigeria and draws up a model of Chinese development for Nigeria. …”
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  6. 826

    Simulación del vaciado continuo de perfiles de aceros al carbono de baja aleación//Simulation of the continuous casting of low carbon steel profiles by Yusdel Díaz-Hernández, Alberto Fiol-Zulueta, José Arzola-Ruiz

    Published 2012-12-01
    “…The most outstanding characteristic of the model was the inclusion of complex processes of heat interchange, metal phase changes, distribution of temperatures in the mould, chemical composition of the metal, flow of water in the primary and<br />secondary cooling system and the casting speed. …”
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  7. 827

    Optimization of Drying Parameters for Total Phenolic Content of Papaya Using Response Surface Methodology by Ferdusee Akter, Shireen Akther, Afroza Sultana, Md. Motiur Rahman, Ujjwal Kumar Deb

    Published 2022-01-01
    “…In order to fit the experimental data, a quadratic polynomial model is created for the output variable, and an analysis of variance is carried out to determine whether or not the model is compatible to determine the optimal drying conditions. …”
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  8. 828

    INFLUENCE OF CODE OF POINT CHANGE ON INDIVIDUAL RHYTHMIC GYMNASTICS PERFORMANCE by Rebecca M. Freire-Maceiras, Elena Sierra- Palmeiro, María A Fernández-Villarino

    Published 2025-06-01
    “…The main conclusion is the need to change the routine composition and training model and to optimise the judges' evaluation parameters. …”
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  9. 829

    Development and Influence of the Economic Groups in Ecuador by Ana Belén Tulcanaza-Prieto, Alexandra Cortez-Ordoñez, Jairo Rivera

    Published 2025-07-01
    “…Additionally, t -test for the equality of means revealed statistically significant differences in financial performance across quartiles between 2015 and 2020, confirming a hierarchical structure among Ecuadorian economic groups based on their financial variables. The study provides a comprehensive overview of the growth, transformation, and structural composition of economic groups in Ecuador, emphasizing their oligopolistic tendencies and the strong presence of family-owned and controlled firms. …”
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  10. 830
  11. 831

    The dietary inflammation index and body mass index mediate the association between the dietary index for gut microbiota and sarcopenia in older women: evidence from NHANES 2011–201... by Xiaoyan Zhang, Liangzhi Wu, Yutian He, Shuyao Zhang, Wenfeng Hua, Wenfeng Hua

    Published 2025-08-01
    “…Multivariable logistic regression analysis revealed a negative association between DI-GM and the risk of sarcopenia, irrespective of whether the independent variable was analyzed as a continuous variable or in quartiles in the fully adjusted model (Model 3, continuous variable: OR = 0.91, 95% confidence interval (CI): 0.88–0.95, p &lt; 0.001; Q4 vs. …”
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  12. 832

    Factors Shaping Phenotypic Variation in <i>Thymus saturejoides</i> by Abderrahim Ouarghidi, Imane Abbad, Tiza Mfuni

    Published 2025-06-01
    “…We ran linear regression models to determine if any of these environmental variables were associated with the content of key chemicals known to mark quality and value in <i>T. saturejoides</i>. …”
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  13. 833

    Análise de desempenho de sistemas de produção modais de pecuária de cria no Brasil Performance evaluation of livestock production systems in Brazil by João Carlos Correia Baptista Soares de Mello, Eliane Gonçalves Gomes, Urbano Gomes Pinto de Abreu, Thiago Bernardino de Carvalho, Sérgio de Zen

    Published 2013-01-01
    “…Data envelopment analysis (DEA) models were used with variable returns to scale. The objective was to measure the performance of the producer's decision regarding the composition of the production system. …”
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  14. 834

    Deep investigation of Arabidopsis thaliana junk DNA reveals a continuum between repetitive elements and genomic dark matter. by Florian Maumus, Hadi Quesneville

    Published 2014-01-01
    “…Eukaryotic genomes contain highly variable amounts of DNA with no apparent function. …”
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  15. 835

    Effect of varying thickness properties of the slow release fertilizer films on morphology, biodegradability, urea release, soil health, and plant growth. by Zahid Majeed, Shamyla Nawazish, Ayesha Baig, Wasim Akhtar, Atia Iqbal, Wisal Muhammad Khan, Syed Majid Bukhari, Asma Zaidi, Pau Loke Show, Nurlidia Mansoor

    Published 2023-01-01
    “…Current work examined the morphology, chemical composition, biodegradability, urea release, soil health, and plant growth effects of the SRF films subjected to changes in the thickness of 0.27, 0.54, and 1.03 mm. …”
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  16. 836
  17. 837

    Segregació social i marc institucional del scentres: una anàlisi internacional de les desigualtats educatives Social segregation and the institutional framework of the school: an S... by Gerard Ferrer Esteban, Miquel Àngel Alegre Canosa

    Published 2009-01-01
    “…The main source of information used to construct the variables was PISA2006. The results corroborate the significant effect of the school’s social composition. …”
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  18. 838

    A Comparative Impact Assessment of Hail Damage to Tile and Built-Up Roofing Systems: A Comprehensive Review by Gayatri Thakre, Vinayak Kaushal, Mohammad Najafi

    Published 2025-01-01
    “…To better understand the effects, it is recommended that an intelligent model be developed to predict the hail resistance threshold of various configurations of BUR and TR systems with critical variables.…”
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  19. 839

    Stiffness Characteristics of High-Speed Railway Turnout and the Effect on the Dynamic Train-Turnout Interaction by Jingmang Xu, Ping Wang, Xiaochuan Ma, Yuan Gao, Rong Chen

    Published 2016-01-01
    “…Track stiffness in railway turnouts is variable due to differences in structural composition along the longitudinal direction, which will lead to severe dynamic interaction between train and turnout. …”
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  20. 840

    Machine learning based optimization of titanium electropolishing using artificial neural networks and Taguchi design in eco-friendly electrolytes by Hyun-Kyu Hwang, Seong-Jong Kim

    Published 2025-08-01
    “…To address data scarcity and improve the generalization performance of the model, Gaussian noise with a mean of 0 and a standard deviation of 0.05 was applied to the input variables to augment the dataset. …”
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