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Showing 881 - 900 results of 15,724 for search 'determined (coefficient OR efficient) methods', query time: 0.26s Refine Results
  1. 881

    A novel method for the determination of organophosphorus pesticides in urine samples using a combined gas diffusion microextraction (GDME) and gas chromatography-mass spectrometry... by Mohammadreza Jafari, Ali Gholami, Maryam Akhgari

    Published 2025-06-01
    “…This study introduces a novel and sensitive method for determining organophosphorus pesticides in urine using Gas Diffusion Microextraction (GDME) combined with Gas Chromatography-Mass Spectrometry (GC–MS). …”
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    Article
  2. 882

    Unsupervised Identification for 2-Additive Capacity by Principal Component Analysis and Kendall’s Correlation Coefficient in Multi-Criteria Decision-Making by Xueting Guan, Kaihong Guo, Ran Zhang, Xiao Han

    Published 2024-12-01
    “…In this paper, we develop a novel unsupervised method for identifying 2-additive capacities by means of Principal Component Analysis (PCA) and Kendall’s correlation coefficient. …”
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    Article
  3. 883

    Combination of solid-liquid hollow fiber liquid phase microextraction method with electromembrane extraction for extraction of Tolmetin and its determination followed by high perfo... by Samaneh Niazipour, Jahan Bakhsh Raoof, Milad Ghani, Reza Ojani

    Published 2025-09-01
    “…Objective: Herein, a reliable and sensitive method for the determination of tolmetin in biological samples was developed by combining solid-liquid hollow fiber liquid phase microextraction (HF-LPME) method with electromembrane extraction (EME) followed by high-performance liquid chromatography with UV detection (HPLC-UV), to enable safe and effective therapeutic monitoring. …”
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    Article
  4. 884

    基于数字图像比色法的食用油酸价检测研究Determination of acid value of edible oil by digital image colorimetry-based method by 李跃凡1,马改琴1,王媛媛1,张帆2,于修烛1LI Yuefan1, MA Gaiqin1, WANG Yuanyuan1, ZHANG Fan2, YU Xiuzhu1

    Published 2025-07-01
    “…In conclusion, the digital image colorimetry-based method is simple and convenient, and can be used for the determination of acid value of edible oil.…”
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    Article
  5. 885
  6. 886
  7. 887

    Investigation of the Effect of Non-Flat Surfaces on the Performance of Perforated Acoustic Absorber by Zahra Hashemi, Ali Fahim, Mohammad Reza Monazzam

    Published 2023-05-01
    “…In order to simulate the absorption coefficient of a non-flat perforated panel, the finite element method was implemented by the COMSOL 5.3a software in the frequency domain. …”
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    Article
  8. 888

    Approaches to determining the cost of laboratory tests by I. I. Khayrullin, V. V. Omelyanovskiy, R. V. Gostishchev, O. A. Sukhorukikh, S. A. Kovaleva, B. G. Gorodetsky

    Published 2024-08-01
    “…These measures are aimed at improving the financial position and enhancing the operational efficiency of the laboratories.Objective: to review various methods for calculating the cost of laboratory tests.Material and methods. …”
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    Article
  9. 889

    DETERMINATION OF VEGETABLE FATS IN FOOD PRODUCTS by D. A. Utyanov, A. V. Kulikovskii, N. L. Vostrikova, A. N. Ivankin

    Published 2019-01-01
    “…Tightening control over the quality and safety of food products leads to an expansion of the list of standardized indicators and the regulatory framework of research methods. Despite the lack of established standards and requirements for fatty acid composition (FAC) of meat products and the content of vegetable fats in it, methods have been developed for determining FAC and vegetable fats. …”
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    Article
  10. 890

    Features of the change in the thermal coefficient of electrical resistance upon heating electrically conductive composites of crystallizable polyolefins with carbon black by A. V. Markov, A. E. Zverev, V. A. Markov

    Published 2024-11-01
    “…To investigate electrically conductive polymer composite materials (EPCMs) based on crystallizable polyolefins and electrically conductive carbon black for the production of self-regulating heaters; to study the mechanism of the occurrence of positive and negative temperature coefficients (PTC and NTC) upon heating such composites.Methods. …”
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    Article
  11. 891

    Examining the Relationship Between the Modified Value-Added Intellectual Coefficient and Financial Performance: A Study on the BIST Bank Index by Yaşar Bayraktar, Oğuz Yusuf Atasel

    Published 2022-09-01
    “…For this purpose, the modified value-added intellectual coefficient (MVAIC) method has been used to measure intellectual capital. …”
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    Article
  12. 892

    An Inverse Approach to Estimate Heat Transfer Coefficients of 122 mm Medium-Range Missile During Correction Engine Operation by Janusz ZMYWACZYK, Piotr KONIORCZYK, Marek PREISKORN, Bogdan MACHOWSKI

    Published 2014-03-01
    “…The inverse problem based on the parameter estimation method using Levenberg–Marquardt optimization procedure was applied to find the unknown heat transfer coefficients. …”
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    Article
  13. 893
  14. 894

    A Simple Green Method for the Determination of Hydrogen Peroxide and Fe(III)/Fe(II) Species Based on Monitoring the Decolorization Process of Polymethine Dye Using an Optical Immer... by Arina Skok, Yaroslav Bazel, Maksym Fizer

    Published 2024-12-01
    “…The most important analytical characteristics of the methods, such as linearity intervals of calibration graphs, precision, LOD and LOQ values, selectivity coefficients, etc., were determined. …”
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    Article
  15. 895

    A method for determining the complex value of technical losses of full power in power three-phase two-winding transformers with account of additional losses from higher harmonic co... by S. S. Kostinskiy, A. V. Bogdan, E. I. Satsuk, A. S. Zasypkin

    Published 2025-01-01
    “…The study develops and test a methodology for determining the complex value of technical losses of full power in power three-phase two-winding transformers, taking into account additional losses from higher harmonic components.Materials and methods. …”
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    Article
  16. 896

    TO THE ISSUE OF DETERMINATION OF THE INSURABLE RESERVE VOLUME by N. V. Andrianov, O. V. Shchukina

    Published 2005-02-01
    “…The theoretical and practical aspects of logistic function in the process of purchases are examined. The methodical recommendations for determination of the insurable reserve volume are given. …”
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  17. 897
  18. 898

    Methodology of online assessment of technical state of transformer substation 35/6 (10) kV by express analysis coefficient by I. V. Ivshin, A. R. Galyautdinova, O. V. Vladimirov, M. F. Nizamiev, I. K. Usmanov

    Published 2021-10-01
    “…Express analysis provides remote monitoring, monitoring of the condition of the operating equipment and forecasting changes in the technical condition.RESULTS. The proposed method for determining the coefficient of express analysis allows online monitoring of changes in monitored parameters, reducing the recovery time of failed elements, and maintaining equipment in a working condition. …”
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  19. 899
  20. 900

    Effects of repeated etching cycles using 15% hydrochloric acid on enamel loss and relative attenuation coefficient in resin infiltration by Dayang Fadzlina Abang Ibrahim, Noren Nor Hasmun, Yih Miin Liew, Annapurny Venkiteswaran

    Published 2024-02-01
    “…However, anecdotal evidence suggests that favorable esthetics outcomes can be obtained by increasing the etching cycles. Aim: To determine the incremental and total enamel loss when enamel surfaces are exposed to multiple etching cycles and to assess the relative attenuation coefficient after multiple etching cycles and resin infiltration treatment. …”
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