Showing 681 - 700 results of 6,053 for search 'model composition methods', query time: 0.22s Refine Results
  1. 681

    Central composite design for the removal of copper by an Adansonia digitata by Naveen Prasad, Rakesh Namdeti, Gaddala Baburao, Doaa Salim Musallam Samhan Al-Kathiri, Uma Reddy Meka, Khalid Mahad Ali Tabook, Arlene Abuda Joaquin

    Published 2024-01-01
    “…The percentage of metal clearance (CCD) was examined as a result of the influence of various process parameters utilizing a central composite design. A quadratic model based on the CCD was used to model the reaction. …”
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  2. 682

    DETERMINATION OF LAMBDA-CYHALOTHRINE IN MICRO-INCAPSULATED INSECTICIDAL COMPOSITIONS by L. A. Nosikova, A. N. Kochetov

    Published 2016-02-01
    “…The conditions of direct analytical determination and the stage of sample preparation with the previously described methods are adapted. The content of lambda-cyhalothrin together with cypermethrin in microencapsulated compositions is determined by spectrophotometric method taking into account the absorption of trace contaminants - technical substances and building blocks of microcapsules (phospholipids). …”
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  3. 683

    Multicomponent body composition of university club sport athletes by Dale R. Wagner, Edward M. Heath, Sara A. Harper, Elizabeth A. Cafferty, Masaru Teramoto, Alyssa Evans, Tate Burch, Jacob McBride, Steven Spencer, Michael N. Vakula

    Published 2025-12-01
    “…Additionally, the majority of norms for NCAA athletes were created from individual methods requiring assumptions.Objective This study used a four-component (4C) model to measure the body composition of university club sports athletes.Methods Data were collected on club athletes participating in baseball, climbing, cycling, figure skating, gymnastics, ice hockey, lacrosse, pickleball, powerlifting, racquetball, rodeo, rugby, soccer, swimming, ultimate, and volleyball. …”
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  4. 684

    Influence of additional polymerization in the microhardness of direct composite resins by Geraldo Henrique L. Lombardo, Cristiane F. Carvalho, Graziela Galhano, Rodrigo Othávio A. Souza, Lafayete N. Júnior, Carlos Augusto Pavanelli

    Published 2010-08-01
    “…Objective: To evaluate different methods of additional polymerization in the Vickers’ microhardness of three composite resins. …”
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  5. 685

    Curcumin Microemulsions: Influence of Compositions on the Dermal Penetration Efficacy by Muzn Alkhaldi, Soma Sengupta, Cornelia M. Keck

    Published 2025-02-01
    “…<b>Background/Objective</b>: This study provided a comparison of the influence of each component of the microemulsion formulation and investigated the impact of varying concentrations of the microemulsion components on curcumin’s ability to penetrate the skin using an ex vivo porcine ear model. <b>Methods</b>: Curcumin microemulsions with different compositions were prepared and analyzed for their physicochemical properties. …”
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  6. 686

    MULTI–CRITERIA OPTIMIZATION OF A PRODUCT RECIPE COMPOSITION by Marina A. Nikitina, Irina M. Chernukha

    Published 2018-09-01
    “…The use of the IT-technologies realized by the methods of multi-criteria structure optimization and mathematical programming allows correcting and optimizing food recipes by different criteria of the non-linear character, structuring the obtained set of alternatives and detecting the optimal food recipe option with the targeted quality, composition and properties or a diet for a particular population category with consideration for the therapeutic and prophylactic direction.…”
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  7. 687

    ARCHITECTONICS AND COMPOSITION OF LITERARY TEXT AS ELEMENTS OF AUTHOR’S IDIOSTYLE by Iryna A. Sydorenko

    Published 2019-06-01
    “…Apart from that, the principal research methods of compositional analysis as well as key research stages of the methodological procedure have been investigated. …”
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  8. 688

    Simulation of Material Removal Process in EDM with Composite Tools by Shengfang Zhang, Wenchao Zhang, Puyong Wang, Yu Liu, Fujian Ma, Dapeng Yang, Zhihua Sha

    Published 2019-01-01
    “…In order to predict the wear of composite tool effectively, in this paper, a material removal model of single-pulse EDM with composite tools was established by using the finite element method. …”
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  9. 689

    Comprehensive Review of Plant Protein Digestibility: Challenges, Assessment Methods, and Improvement Strategies by Mauricio Opazo-Navarrete, César Burgos-Díaz, Cristina Bravo-Reyes, Ivo Gajardo-Poblete, Manuel Chacón-Fuentes, Juan E. Reyes, Luis Mojica

    Published 2025-03-01
    “…However, their digestibility varies due to factors such as molecular structure, amino acid composition, and processing methods. This review comprehensively analyzes methods used to assess plant protein digestibility, including in vivo, in vitro, and ex vivo approaches. …”
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  10. 690

    Finite element investigations on the microstructure of fibre-reinforced composites

    Published 2008-09-01
    “…The effect of residual stress due to the curing process on damage evolution in unidirectional (UD) fibre-reinforced polymer-matrix composites under longitudinal and transverse loading has been investigated using a three-dimensional micromechanical representative volume element (RVE) model with a hexagonal packing geometry and the finite element method. …”
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  11. 691

    Optimal Design of Variable-Stiffness Fiber-Reinforced Composites by Evangelos P. Hadjigeorgiou, Christos A. Patsouras, Vassilios K. Kalpakides

    Published 2025-06-01
    “…In this paper, the problem of optimal spatial orientation of fibers in a two-dimensional composite structure under in-plane loading is studied, using the strain energy-minimizing method. …”
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  12. 692

    Application of ANN in the Performance Evaluation of Composite Recycled Mortar by Shichao Zhao, Yaohua Liu, Geng Xu, Hao Zhang, Feng Liu, Binglei Wang

    Published 2025-08-01
    “…To promote the large-scale utilization of construction and industrial solid waste in engineering, this study focuses on developing accurate prediction and optimization methods for the unconfined compressive strength (UCS) of composite recycled mortar. …”
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  13. 693

    Optimization of a new catalyst composition for trimerization of ethylene by Mohammad Javad Sharifi, Alireza Fazlali, Seyed Hamed Mahdaviani, Davood soudbar

    Published 2024-12-01
    “…The effect of four variables Al/Cr molar ratio, halide/Cr molar ratio, reaction temperature and catalyst dosage have been considered on catalyst activity, 1-hexene selectivity and polymer content. The central composite design (CCD) model with three main parameters in three response levels for each factor was applied to analyze the effects of the parameters. …”
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  14. 694

    A Multi-Objective Optimization Design Method for High-Aspect-Ratio Wing Structures Based on Mind Evolution Algorithm Backpropagation Surrogate Model by Jin Nan, Junhua Zheng, Bochuan Jiang, Yuhang Li, Jiayun Chen, Xuanqing Fan

    Published 2024-12-01
    “…This approach was further enhanced by the mind evolution algorithm (MEA) to optimize the solution performance of the surrogate model. The wing structure optimization model was established using the multi-objective grey wolf optimizer (MOGWO) based on the surrogate model for search and optimization. …”
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  15. 695

    Vitamin D deficiency and adverse body composition in adolescents by Bo Wang, Songting Gao, Zhongxin Zhu

    Published 2025-07-01
    “…While its skeletal effects are well-established, evidence on its extraskeletal roles in muscle and adipose tissue during this critical developmental period remains limited, especially using direct body composition measures. Methods We analyzed 3,648 participants aged 12–19 years from NHANES data (2011–2018), stratifying vitamin D status as deficiency, insufficiency, or sufficiency. …”
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  16. 696

    Achieving excellent mechanical properties in CoNiCrMo multi-principal element alloys: A comprehensive approach integrating mean square atomic displacement and machine learning meth... by Yang Long, Wei Fang, Haoyang Yu, Tiexu Peng, Cong Li, Weiguang Liu, Chang Liu, Qinghe Jia, Yushui Chen, Jia Li, Fuxing Yin

    Published 2025-05-01
    “…Mean square atomic displacement (MSAD) serves as a key parameter for obtaining high lattice distortion, and solvus temperature (ST) is used as a key indicator to evaluate the stability of FCC phases, which are the two main indicators we focus on in alloy screening using ML methods. The results indicate electronegativity difference is the descriptor of the highest importance in the lattice distortion prediction of the ML model. …”
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  17. 697

    Behavior of Carbon-Carbon Composite under Intense Heating by R. Palaninathan

    Published 2010-01-01
    “…This paper is concerned with modeling of ablation behavior of carbon-carbon composites used in hot spot areas of reentry space and hypersonic vehicles. …”
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  18. 698

    Multiscale design and fabrication of neutron shielding composites via boron-based polymers and layer-by-layer assembly of graphene oxide/B₄C on carbon fiber by Yizhuo Gu, Benben Liu, Zhongjia Yang, Shaokai Wang, Min Li

    Published 2025-03-01
    “…However, the filtering effect of fiber bundles on the functional fillers reduces the shielding properties of the composites. This study enhances neutron shielding properties by developing a B-containing polymer matrix through blending B-phenolic/epoxy with trimethoxyboroxine, followed by the deposition of B₄C/GO multilayers on carbon fibers using a layer-by-layer (LBL) self-assembly method. …”
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  19. 699

    Spatio-temporal evolution and driving factors of the coupling and coordinated development of China's digital economy and older adult care services by Hui Liu, Wei Wang, Sha Li

    Published 2025-02-01
    “…It employs the entropy method to measure the weights of various indicators in the digital economy and older adult care services. …”
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  20. 700

    Nanostructured titanium dioxide-based photocatalysts for self-cleaning concrete: аssessment of effects of phase composition on photocatalytic activity of TiO2 by Artemy S. Balykov, Denis B. Chugunov, Vladimir M. Kyashkin, Natalia S. Davydova

    Published 2025-06-01
    “…It has been found that the functional properties of TiO2 depend largely on its phase composition. This study aimed to establish the patterns of influence of phase composition on the photocatalytic activity of titanium dioxide under the impact of artificial ultraviolet and natural solar radiation and to identify the most effective titanium oxide-based photocatalysts for subsequent use in the composition of self-cleaning concrete. …”
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