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Showing 2,601 - 2,620 results of 15,724 for search 'determined (coefficient OR efficiency) method', query time: 0.26s Refine Results
  1. 2601

    The Effects of Employee Performance Appraisal on the Company Performance Results: The Mediating Role of HRM Outcomes With an Innovative Application of the Efficiency Index by Marzena Stor

    Published 2023-01-01
    “…The qualitative benchmarking method used is problematic, relying on comparisons instead of objective measures. …”
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    Article
  2. 2602

    Determination of nine prostaglandins in the arachidonic acid metabolic pathway with UHPLC-QQQ-MS/MS and application to in vitro and in vivo inflammation models by Yufeng Huang, Mengxian Wang, Mengxian Wang, Ziqi Yang, Ziqi Yang, Xiaotong Wang, Xinxin Wang, Fan He

    Published 2025-05-01
    “…The levels of other prostaglandins were below the limit of quantification.ConclusionThe method established in this study for determining nine prostaglandins in the AA metabolic pathway with UHPLC-QQQ-MS/MS embodied the advantages of requiring a low amount of sample, a simple pretreatment process, and the rapid and efficient simultaneous quantification of multiple inflammatory factors. …”
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  3. 2603

    Determination of Trace Rare Earth Elements in Tungsten-Molybdenum Ore by Inductively Coupled Plasma-Mass Spectrometry with Microwave Digestion System by Junfei CAO, Ting WANG, Jian LI, Ying LI

    Published 2023-08-01
    “…During the pretreatment of tungsten and molybdenum ore samples, the alkali melting flux will introduce the salt matrix, and the tungsten and molybdenum elements in an acid dissolution condition are easy to hydrolyze into tungstic acid and molybdic acid and produce rare earth fluoride.OBJECTIVESTo establish an analytical method for accurate determination of the 16 rare earth elements including La, Ce, Pr, Nd, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb, Lu, Y, and Sc, in tungsten-molybdenum ore by inductively coupled plasma-mass spectrometry (ICP-MS).METHODSTungsten-molybdenum ore samples were fast digested by microwave with four acid system (HNO3-HF-HClO4-HCl) in a high temperature and high-pressure environment. …”
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  4. 2604

    Response of AlphaGUARD PQ2000 radon detector to 220Rn in diffusion mode by XIAO Yasong, HE Zhengzhong, WANG Kexin, FENG Jialu, LYU Lidan

    Published 2024-10-01
    “…The presence of high-concentration 220Rn can affect the accuracy of 222Rn concentration measurements.PurposeThis study aims to measure radon concentration more accurately by investigating the variation in the response coefficients of the AlphaGUARD PQ2000 radon monitor to 220Rn under thoron gas concentrations with different wind speeds and directions within a standard radon chamber.MethodsThe single-scintillation proportional counter flow gas static method was employed to determine the thoron concentration in this study. …”
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  5. 2605
  6. 2606

    A Theoretical Study of the Ionization States and Electrical Conductivity of Tantalum Plasma by Shi Chen, Qishuo Zhang, Qianyi Feng, Ziyue Yu, Jingyi Mai, Hongping Zhang, Lili Huang, Chengjin Huang, Mu Li

    Published 2025-04-01
    “…A comparison of the ionization compositions between tantalum and copper plasmas highlights the significant role of ionization energies in determining species populations. Additionally, the average electron–neutral momentum transfer cross-section significantly influences the electrical conductivity calculations, and calibration with experimental measurements offers a method for estimating this atomic parameter. …”
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  7. 2607
  8. 2608
  9. 2609

    Rapid Determination of 107 Illegally Added Nafils in Foods by Ultra-high Performance Liquid Chromatography-High Resolution Mass Spectrometry by FENG Feng, CHANG Qizhi, SUN Xiao, DU Rongzhu, ZHANG Feng

    Published 2025-05-01
    “…A rapid method for the determination 107 illegally added nafils in compressed candies, honey and beverage was developed by ultra-high performance liquid chromatography coupled with quadrupole orbitrap high-resolution mass spectrometry. …”
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    Article
  10. 2610

    ECONOMETRIC METHODS IN FORECAST EVALUATION OF THE DEVELOPMENT STRATEGY OF A MANUFACTURING SYSTEM by A. N. Mardas, O. A. Gulyaeva

    Published 2018-02-01
    “…The article is devoted to the problem of predictive evaluation of the development strategy efficiency of a manufacturing system under non-stationary conditions. …”
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  11. 2611

    Numerical solution of the viscoelastic wave equation by Galerkin spectral element method by Jalil Rashidinia, Feze Barzegar

    Published 2025-03-01
    “…An a priori error estimate is determined for the total-discrete system. The computational efficiency of the method is confirmed through a numerical example, which shows that the method is effectively applicable.…”
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  12. 2612

    Evaluating the operational efficiency of the compact urban medical group in Qiqihar based on the three-stage DEA and Malmquist index model by Ye Xing, Chong Tian, Jiayu Wang, Yanting Liu, Jun Tao, Taoyu Lin, Yan Zhou, Yan Zhou, Yue Wang, Xue Bai

    Published 2025-08-01
    “…BackgroundSince the establishment of medical alliances, a key issue regarding their ability to better address the imbalance in China’s medical resources lies in the changes in operational efficiency before and after their formation. This study focuses on urban medical groups, a reform model of medical alliances, and systematically analyzes the changes in operational efficiency before and after the group-based reform, aiming to provide empirical evidence for improving the group-based management model.MethodsThis study employs a dual-method framework combining three-stage DEA for static efficiency evaluation and Malmquist index analysis for dynamic assessment. …”
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  13. 2613

    Salting-Out Assisted Liquid-Liquid Extraction of Cr (VI) from Water Samples before Its Determination by UV-Vis Spectrophotometry by Jote Dame, Feyisa Wedajo, Guyo Jilo Molole, Abera Gure

    Published 2023-01-01
    “…This paper proposes salting-out assisted liquid-liquid extraction for selective extraction of a Cr (VI)-1,5-diphenylcarbazide complex before its determination by UV-Vis spectrophotometry. Parameters affecting the complexation process and the extraction efficiency of the method were studied. …”
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  14. 2614
  15. 2615
  16. 2616

    Green Pre-Treatment Strategy Using Ionic Liquid-Based Aqueous Two-Phase Systems for Pesticide Determination in Strawberry Samples by Ana Jocić, Slađana Marić, Danijela Tekić, Jasmina Mušović, Jelena Milićević, Sanja Živković, Aleksandra Dimitrijević

    Published 2024-12-01
    “…Liquid–liquid equilibrium measurements for each ATPS were conducted, followed by extraction experiments to determine the most efficient systems for pesticide extraction. …”
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  17. 2617

    The Safety and Efficiency of Tirofiban in Acute Ischemic Stroke Patients Treated with Mechanical Thrombectomy: A Multicenter Retrospective Cohort Study by Lili Zhao, Yating Jian, Tao Li, Heying Wang, Zhang Lei, Man Sun, Ye Li, Yiheng Zhang, Meijuan Dang, Wang Huqing, Sun Hong, Zhang Ru, Hongxing Zhang, Yi Jia, Luo Guogang, Zhang Guilian

    Published 2020-01-01
    “…Multivariate and COX regression analyses were performed to determine the association of tirofiban treatment with safety and efficiency in subjects treated with MT. …”
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    Article
  18. 2618

    Simultaneous Determination of Sunset Yellow FCF, Allura Red AC, Quinoline Yellow WS, and Tartrazine in Food Samples by RP-HPLC by Hakan Alp, Davut Başkan, Ahmet Yaşar, Nurettin Yaylı, Ümmühan Ocak, Miraç Ocak

    Published 2018-01-01
    “…An efficient method was developed for the simultaneous determination of Sunset Yellow FCF (E110), Allura Red AC (E129), Quinoline Yellow WS (E104), and Tartrazine (E102) in food samples by RP-HPLC. …”
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  19. 2619

    Focal Mechanism and Moment Tensor Determination for Tsunami Early Warning Systems: A Literature Study (2018–2024) by Titi Handayani, Wijayanto, Adhi Harmoko Saputro, Mohd Asyraf Zulkifley, Dede Djuhana

    Published 2025-01-01
    “…This review aimed to guide the selection of appropriate methods for determining focal mechanism and moment tensor in Tsunami Early Warning Systems (TEWS) while identifying challenges and potential future study directions.…”
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  20. 2620