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Showing 1,021 - 1,040 results of 4,397 for search '(compositional OR composition) variability', query time: 0.15s Refine Results
  1. 1021

    The Application of Vibroacoustic Mean and Peak-to-Peak Estimates to Assess the Rapidly Changing Thermodynamic Process of Converting Energy Obtained from Various Fuel Compositions U... by Marek Waligórski, Maciej Bajerlein, Wojciech Karpiuk, Rafał Smolec, Jakub Pełczyński

    Published 2025-02-01
    “…The proposed method can predict combustion irregularities and detect their sources in engine designs with high kinetic energy, hybrid combustion modeling, and fuel composition identification. Dimethyl ether reduced hydrocarbons by 96–99%, particulate matter by 37–60%, and carbon monoxide by 2.5–19.5%, whereas nitrogen oxides increased by 1–8% (relative to diesel fuel). …”
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  2. 1022

    Effects of pH/<i>p</i>CO<sub>2</sub> fluctuations on photosynthesis and fatty acid composition of two marine diatoms, with reference to consequences of coastal acidification by Y. Shang, J. Qiu, Y. Weng, X. Wang, D. Zhang, Y. Zhou, J. Xu, J. Xu, F. Li, F. Li

    Published 2025-03-01
    “…In the present study, we manipulated the culturing pH to investigate physiological performance and fatty acid (FA) composition of two coastal diatoms, <i>Skeletonema costatum</i> and <i>Thalassiosira weissflogii</i>, in both steady and fluctuating pH regimes. …”
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  3. 1023
  4. 1024

    The Re-Modeling of a Polymeric Drug Delivery System Using Smart Response Surface Designs: A Sustainable Approach for the Consumption of Fewer Resources by Magdy M. Aly, Shaimaa S. Ibrahim, Rania M. Hathout

    Published 2025-06-01
    “…<b>Aim</b>: This study compares the effectiveness of two of the most commonly used response surface designs—Central Composite Design (CCD) and D-optimal Design (DOD)—in modeling a polymer-based drug delivery system. …”
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  5. 1025

    The Weight Minimization of a UAV Wing Component Through Structural Optimization by Andreas Psarros, Georgios Savaidis

    Published 2025-03-01
    “…This study focuses on the structural optimization of a composite wing element for an unmanned aerial vehicle. …”
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  6. 1026

    RSM-CCD design of volcanic ash/ rice husk ash based phosphate geopolymer for crystal violet adsorption: kinetics and isotherms by Armand Tchakounte, Idriss Lenou, Victor Shikuku, Ludovic Kemdjien, Joseph Dika, Charles Kede

    Published 2024-11-01
    “…Abstract In this work, the application of central composite design (CCD) was used to optimise the synthesis of volcanic ash/ rice husk ash-based phosphate geopolymers. …”
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  7. 1027
  8. 1028

    Dispersive liquid-liquid microextraction for determining urinary muconic acid as benzene biological indicator by Moghadasi Abolfazl, Yousefinejad Saeed, Soleimani Esmaeel, Taghvaei Sajjad, Jafai Saeed

    Published 2024-01-01
    “…In this method, five variables including pH, the volume of the extractant and the disperser, salt content and the time of centrifugation were optimized using the response surface methodology with a central composite design approach and experimental data. …”
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  9. 1029

    Simultaneous production of animal feed enzymes (endoxylanase and endoglucanase) by Penicillium janthinellum from waste jute caddies by Aditi Kundu, Moumita Karmakar, Rina Rani Ray

    Published 2024-02-01
    “…Results: The fungal isolate P. janthinellum MTCC10889 is an outstanding producer of endoxylanase and also cellulase. A central composite design was applied to optimize its lignocellulolytic as well as cellulolytic enzyme production in submerged-state fermentation. …”
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  10. 1030
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  12. 1032

    Comparative effects of time-restricted feeding versus normal diet on physical performance and body composition in healthy adults with regular exercise habits: a systematic review a... by Ke-wen Wan, Zi-han Dai, Robin Sze-tak Ho, Huang Wendy Yajun, Stephen Heung-Sang Wong

    Published 2024-08-01
    “…No between-group differences in physical performance-related variables and fat-free mass were found. According to the result of the risk-of-bias assessment, one study showed a low risk of bias, 13 showed some concerns, and one showed a high risk of bias.Conclusion TRF may be a valuable nutritional strategy to optimise body composition and maintain physical performance in healthy adults engaged in regular exercise.PROSPERO registration number CRD42022310140.…”
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  13. 1033

    Harnessing unsupervised machine learning with [18F]FDG PET/CT to develop a composite model for predicting overall survival in cervical cancer patients undergoing concurrent chemora... by Jinyu Shi, Lian Wang, Min Zhou, Shushan Ge, Shushan Ge, Bin Zhang, Jiangqin Han, Jihui Li, Shengming Deng, Shengming Deng

    Published 2025-05-01
    “…Background and purpose:This study sought to develop an advanced composite model to enhance the prognostic accuracy for cervical cancer patients undergoing concurrent chemoradiotherapy (CCRT). …”
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  14. 1034
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  16. 1036

    Variation in the Phenolic Profile and Antioxidant, Antihyperglycemic, and Anti-Inflammatory Activity in Leaves of <i>Cotoneaster zabelii</i> during Growing Season by Agnieszka Kicel, Anna Magiera, Monika Anna Olszewska

    Published 2024-10-01
    “…In the course of optimizing the harvest time for <i>C. zabelii</i> cultivated in Poland, the leaf samples were collected monthly during the annual plant vegetation season, and the hydromethanolic leaf extracts were evaluated for their phenolic composition and model biological activities, including antioxidant, antihyperglycemic, and anti-inflammatory effects in vitro. …”
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  17. 1037

    Swida australis as a resource species of Dagestan by F. M. Suleimanova, Z. M. Asadulaev, A. B. Izmailov

    Published 2025-07-01
    “…Aim. Study of the variability of the biochemical composition of fatty oils from the pericarp and seeds of Swida australis depending on the altitudinal conditions of growth of natural populations for assessment as a resource species in the field of medicine.Fruits of S. australis were selected along the altitudinal gradients: 15 m, 620 m and 1000 m. …”
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  18. 1038

    The impact of cultivar and production conditions on apple quality by Paula A. MORARIU, Andruța E. MUREȘAN, Adriana F. SESTRAS, Cătălina DAN, Andreea F. ANDRECAN, Orsolya BORSAI, Mădălina MILITARU, Vlad MUREȘAN, Radu E. SESTRAS

    Published 2025-03-01
    “…Biochemical analyses confirmed substantial variability in dry matter, sugar content, and mineral composition, emphasizing the role of ecological and agronomic factors in shaping fruit quality. …”
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  19. 1039

    Physiological measures variability and risks of heart disease and stroke: evidence from three cohort studies by Wei Liu, Lieyang Fan, Da Shi, Linling Yu, Jiahao Song, Ruyi Liang, Xuefeng Lai, Hao Wang, Yongfang Zhang, Shuhui Wan, Yueru Yang, Bin Wang

    Published 2024-12-01
    “…Methods We constructed a composite score (0 ~ 3) of variability in physiological measures, including blood pressure, pulse rate, and body mass index, in older adults from the China Health and Retirement Longitudinal Study (CHARLS) 2011 ~ 2015, the Health and Retirement Study (HRS) 2006/2008 ~ 2014/2016, and the UK Biobank 2006 ~ 2019. …”
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  20. 1040