Showing 501 - 520 results of 773 for search 'deviation composition', query time: 0.08s Refine Results
  1. 501

    High-Precision Flow Rate Measurement Based on Distributed Optical Fiber Acoustic Sensing by Keqing Zhang, Baoqiang Yan, Hao Li, Junliang Lin, Jie Wu, Zhijun Yan, Qizhen Sun

    Published 2025-04-01
    “…The simulation results have shown that the standard deviation of pressure fluctuation was quadratic with the flow rate. …”
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    Article
  2. 502

    Coil-Only High-Frequency Lamb Wave Generation in Nickel Sheets by Yini Song, Yihua Kang, Kai Wang, Yizhou Guo, Jun Tu, Bo Feng

    Published 2024-11-01
    “…The experimentally measured wave velocity was 4.9946 m/s, with a deviation of only 0.4985% from the theoretical value, confirming the accuracy of the method. …”
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    Article
  3. 503

    Study on rapid construction of microemulsion system based on EACN of crude oil measured by the direct method by Yibo Li, Min Yang, Tianshuang He, Jutao Chen

    Published 2025-04-01
    “…The results indicate that the direct method has limitations in measuring the EACN of crude oil, particularly for heavy oils with complex compositions, but it is suitable for light oils with simpler compositions. …”
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    Article
  4. 504

    Is intraindividual reaction time variability an independent cognitive predictor of mortality in old age? Findings from the Sydney Memory and Ageing Study. by Nicole A Kochan, David Bunce, Sarah Pont, John D Crawford, Henry Brodaty, Perminder S Sachdev

    Published 2017-01-01
    “…Participants completed two computerised reaction time (RT) tasks (76 trials in total) at baseline, and comprehensive medical and neuropsychological assessments every 2 years. Composite RT measures were derived from the two tasks-the mean RT and the IIVRT measure computed from the intraindividual standard deviation of the RTs (with age and time-on-task effects partialled out). …”
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    Article
  5. 505

    A novel etching technique for surface treatment of zirconia ceramics to improve adhesion of resin-based luting cements by Eystein Ivar Ruyter, Nalini Vajeeston, Torbjørn Knarvang, Ketil Kvam

    Published 2017-01-01
    “…Results: Values for adhesive strength (mean ± standard deviation) after melt etching of the surfaces with initially dry powders were for K[FHF], (31.2 ± 7.5) MPa and for NH4[FHF] (31.0 ± 11.8) MPa. …”
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    Article
  6. 506

    SENSOR ELETROQUÍMICO BASEADO EM ÓXIDO DE GRAFENO REDUZIDO E ESTANATO DE ZINCO PARA DETERMINAÇÃO DE PROMETAZINA by Andreza L. Moreira, Janevane S. de Castro, Anderson V. Chaves, Pierre B. A. Fechine, Pedro de Lima-Neto, Francisco W. P. Ribeiro, Paulo N. S. Casciano, Adriana N. Correia

    Published 2025-06-01
    “…An innovative sensor, based on a glassy carbon electrode modified with a reduced graphene oxide and zinc stannate composite (Zn2SnO4-rGO/GCE), was developed to detect and quantify promethazine hydrochloride (PMZ) in pharmaceutical formulations, using square wave voltammetry (SWV). …”
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    Article
  7. 507

    Probability calculation of building structures considering asymmetry of random values and functions distribution by Yu. V. Krasnoshchekov

    Published 2020-11-01
    “…A method is proposed for approximating the reliability of fairly complex compositions of random variables using statistical parameters (expectation, standard deviation, and skewness coefficient) of two-element functions approximated by a lognormal three-parameter distribution.Conclusions. …”
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    Article
  8. 508

    Hot Structure Flight Data of a Faceted Atmospheric Reentry Thermal Protection System by Hannah Boehrk, Hendrik Weihs, Henning Elsäßer

    Published 2019-01-01
    “…Aerodynamic control surfaces, i.e., canards, have been designed and made from a hybrid titanium and ceramic matrix composite structure.…”
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    Article
  9. 509

    A Continuous Root Water Uptake Isotope Mixing Model by Han Fu, Eric John Neil, Juxin Liu, Bingcheng Si

    Published 2024-08-01
    “…Furthermore, posterior predictive checking indicated that CrisPy effectively reconstructed the mean and standard deviations of plant water isotopic compositions in both virtual and field‐based tests. …”
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    Article
  10. 510

    Convertir aux « bonnes mesures » du corps by Théo Rougnant, Tristan Duverné

    Published 2025-06-01
    “…The combination of two research studies carried out among these professionals shows that treatment is based on measurements (weight, height, body composition, etc.). These body quantifications make it possible to objectivise deviations from norms and to put bodies into action to reduce these deviations, while regulating transformations. …”
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    Article
  11. 511

    Dielectric relaxation in BaTiO3–Bi(ZnZr)O3 by Qian Wang, Jian-Hong Hu, Jun-Yi Liu, Chun-Ming Wang, Chun-Lei Wang

    Published 2025-02-01
    “…Both Havriliak–Negami (H–N) and Jurlewicz–Weron–Stanislavsky (J–W–S) relaxations are identified in these ceramic compositions. H–N relaxation happens in compositions with a small mole ratio of Bi(Zn[Formula: see text]Zr[Formula: see text]O3 (BZZ), while J–W–S type relaxation appears in compositions with a large mole ratio. …”
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  12. 512

    Quantifying fracture process zone evolution in magnesium-based wood-like material: Analysis based on digital image correlation and variation factor method by Chunjie Li, Jun Cai, Xingrong Chen, Johnny F.I. Lam, Hongniao Chen

    Published 2025-07-01
    “…VFM achieves < 2.14 % deviation from conventional methods while significantly improving computational efficiency. …”
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    Article
  13. 513

    Determination of Mercury Impurities in Protamine Sulfate Medicament by Stripping Voltammetry by N. O. Kim, E. A. Ivanovskaja

    Published 2019-05-01
    “…This interval is registered in the methodology and means the limits of permissible deviations. The limits of detection of mercury on the device are 10-6 –10-10 mol/l. …”
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    Article
  14. 514

    Investigating the effect of locally available volcanic ash on mechanical and microstructure properties of concrete by Al Asmari Abdullah F., Bashir Muhammad Iqbal, Farooq Furqan, Asif Usama

    Published 2025-02-01
    “…Water-to-cement ratio was reserved persistent for all the mixes. Chemical compositions of VA and properties of concrete in relation to workability, density, and compressive strength were carried out. …”
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    Article
  15. 515

    Deep Reinforcement Learning-Based Distribution Network Planning Method Considering Renewable Energy by Liang Ma, Chenyi Si, Ke Wang, Jinshan Luo, Shigong Jiang, Yi Song

    Published 2025-03-01
    “…Against the background of building new power systems, the rapid growth of distributed renewable energy sources, such as photovoltaic and wind power, has introduced many challenges for distribution network planning (DNP), including different source-load compositions, complex network topologies, and varied application scenarios. …”
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  16. 516

    Evaluating Sampling Uncertainty in the Quantitative 1H Nuclear Magnetic Resonance Analysis of Lignin by Shrikant Shivaji Pawade, Lauri Toom, Koit Herodes, Ivo Leito

    Published 2025-01-01
    “…The relative standard deviation (RSD) of sample-to-sample variability was 2.4%. …”
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    Article
  17. 517

    A simple and rapid colorimetric detection of methanol, ethanol, and isopropanol and its application toward alcohol-based hand sanitizer quality control by Warongrit Sukma, Cheerapa Boonyakong, Thitiphan Chaiphet, Supakarn Chamni

    Published 2024-12-01
    “…A practical colorimetric analysis for alcohol determination was devised using a composite of food colorants, specifically a green solution of brilliant blue FCF and tartrazine at a ratio of 1:5 v/v. …”
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  18. 518

    Dental age assessment of Western Saudi children and adolescents by Amin M. Alshihri, Estie Kruger, Marc Tennant

    Published 2015-07-01
    “…The establishment of a composite international repository of atlas-based data for diverse ethnic sub-populations would be of great value to clinicians across the globe. …”
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    Article
  19. 519

    Green analytical protocol for the liquid chromatographic determination of ketoprofen in human urine after microextraction using Carbowax 20 M – modified cellulose membrane by Christina Patakidou, Marianna Ntorkou, Abuzar Kabir, Constantinos K. Zacharis

    Published 2025-05-01
    “…Experimental parameters were systematically studied and optimized using a face-centered central composite design and one-factor-at-a-time approaches. …”
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    Article
  20. 520

    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 study focused on the composite material wing of a long-endurance unmanned aerial vehicle (UAV). …”
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    Article