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Showing 601 - 620 results of 15,724 for search 'determined (coefficiency OR efficient) (method OR methods)', query time: 0.34s Refine Results
  1. 601

    Analytical approach for simultaneous determination of azoxystrobin, prothioconazole and trifloxystrobin in plant protection products by Lazić Sanja, Šušnjar Aleksandra, Vuković Slavica, Ećimović Jelena, Đukanović Mitar, Šunjka Dragana

    Published 2025-01-01
    “…In this study, an isocratic reversed-phase high-performance liquid chromatographic (RP-HPLC) method with diode array detection (DAD) was developed and validated for simultaneous determination of azoxystrobin, trifloxystrobin and prothioconazole in plant-protection products. …”
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  2. 602
  3. 603
  4. 604

    METHODICAL APPROACH TO THE DETERMINATION OF THE ANTIOXIDANT ACTIVITY OF THE ECHINACEA PURPUREA AND MONARDA FISTULOSA TINCTURES AS A QUALITY CRITERION OF THE DEVELOPMENT OF THEIR CO... by Oksana Yezerska, Nataliia Hudz, Lesya Kobylinska, Anna Filipska, Vira Turkina, Jan Brindza, Piotr Pawel Wieczorek

    Published 2022-06-01
    “…The aim of the study was to develop the methodical approach to determine the antioxidant activity of the tinctures of Monarda fistulosa herb and flowers and roots of Echinacea purpurea, as well as to develop their technology in  laboratory conditions. …”
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  5. 605

    An LC-MS/MS Method for Simultaneous Determination of the Toxic and Active Components of Cortex Periplocae in Rat Plasma and Application to a Pharmacokinetic Study by Zhen Li, Yang Li, Jin Li, Rui Liu, Jia Hao, Jun He, Yan-xu Chang

    Published 2019-01-01
    “…A sensitive and simple liquid chromatography-tandem mass spectrometry (LC-MS/MS) method was developed and validated to simultaneously determine the toxic and other active components including isovanillin, scopoletin, periplocin, periplogenin, and periplocymarin after oral administration of cortex periplocae extract to rats. …”
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    Article
  6. 606

    A method for determining the topology of swarm elements relative to the leader and an algorithm for constructing a spatial matrix of unmanned aerial vehicles placement by Pavlo Marchenko

    Published 2025-05-01
    “…The subject of study in this article is a method for determining the topology of swarm elements relative to the leader and an algorithm for constructing a spatial placement matrix. …”
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  7. 607

    Multi-objective optimization of an open-pit mining system to determine safety buffer using the modified NBI method and the meta-model approach by Tahereh Khajvandsany, Hossein Amoozad Khalili, Ramezan Rezaeyan, Kourosh Nemati

    Published 2025-03-01
    “…Method: This paper presents the multi-objective optimization in the extraction system of a copper mining complex using the normal boundary intersection (NBI) method and a meta-regression model to determine the economic lot-sizing. …”
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  8. 608

    Edaphic and meteorological parameters as determinants of radon exhalation and its environmental implication in Peruvian agroecosystems by B. Pérez, L. C. Stieff, R. E. Ponce-Amanca, C. J. Guevara-Pillaca, D. Palacios

    Published 2025-07-01
    “…This study addresses this gap by applying Artificial Neural Network (ANN) models and Monte Carlo methods. Three distinct approaches were developed based on radon exhalation measurements from four Peruvian agricultural regions, incorporating meteorological and soil physicochemical data. …”
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    Article
  9. 609

    Complex processing geophysical survey and selection of methods for detailing the geological structure of mega-reservoirs (Hayan block, of the Palmyride fold belt) by V. L. Schuster, O. V. Tyukavkina, I. Kartal

    Published 2024-01-01
    “…The processed materials made it possible to select the most effective GWD combination for identifying the boundaries and fringe zones of sediments in the Kurrachine-Dolomite formation, considered as a mega reservoir, and to identify priority development objects similar in geological structure and reservoir properties.Conclusion. The proposed method for processing field geophysical materials (construction of correlation matrices and statistical processing of geological and field data) can be used in selecting an optimal combination of GWD for establishing the reservoir boundaries of the Kurrachine-Dolomite formation, quantifying the reservoir properties, and increasing the efficiency of the Jihar field development (mega reservoir of the Hayan block).…”
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  10. 610
  11. 611

    On the applicability of semi-empirical methods for calculating the operating processes of a single-stage long-stroke reciprocating compressor in the sphere of wet steam by V. L. Yusha

    Published 2025-06-01
    “…The latter is determined by the lack of reliable experimental results, both in terms of the empirical dependencies used to determine the instantaneous heat transfer coefficient in the flow part of a low-speed reciprocating compressor, and in terms of verification of the obtained computational and theoretical results. …”
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  12. 612

    Landslide Susceptibility Evaluation Based on Empowerment Information Quantity Model of Game Theory by CUI Chengtao, LI Limin, FU Zhentao, REN Ruibin, WANG Lianxia, FENG Qingqing

    Published 2024-01-01
    “…In the process of employing information quantity models for landslide susceptibility zoning,given that the information quantity of influencing factors is directly added or multiplied by a single weight,without considering the main and objective weight of the factor,this paper proposes an evaluation method based on the empowerment information quantity model of game theory.First,the analytic hierarchy process (AHP) is adopted to calculate the subjective weight,the objective weight is determined by the coefficient of variation method,and then the game theory principle is utilized to optimize the main and objective weight to get the combination weight.Meanwhile,the information layer of each evaluation factor is weighted and summed based on the combination weight,and the evaluation results are divided into five categories by the natural intermittent point method.Finally,by taking Shanyang County of Shaanxi Province as the research area,the proposed model is compared with the information quantity model of single weight in landslide-susceptibility zoning maps,zoning point density,and ROC curves respectively.The results show that the accuracy and reliability of the proposed method outperform traditional weighted information measurement methods.…”
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  13. 613

    DETERMINATION OF OIL SATURATION COEFFICIENT WHEN ASSESSING THE GEOLOGICAL OIL RESERVES OF THE MAASTRICHTIAN DEPOSITS OF THE UPPER CRETACEOUS SEDIMENTS OF THE EASTERN CISCAUCASIA by A. S. Demyanov, Y. V. Batishchev, A. A. Paporotnaya, G. A. Polosin

    Published 2022-07-01
    “…The article considers the problem of determining the oil saturation coefficient of the upper Cretaceous deposits of the Eastern Caucasus, and suggests the use of a method to increase the reliability of its determination. …”
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  14. 614

    New High Efficiency and Strength Bending Strain Sensor Based on Piezoelectric Stacks by Vladimir Sidorov, Nelly Rogacheva, Yulia Zheglova

    Published 2024-11-01
    “…Piezoelectric laminated stacks have a periodic structure, and we will use the mathematical homogenization method to correctly determine their effective moduli (physical constants). …”
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  15. 615

    A New Efficient Method for Solving System of Weakly Singular Fractional Integro-Differential Equations by Shifted Sixth-Kind Chebyshev Polynomials by S. Yaghoubi, H. Aminikhah, K. Sadri

    Published 2022-01-01
    “…Thereupon, an upper error bound for the proposed method is determined. Finally, some numerical examples are prepared to test the accuracy and efficiency of the presented method.…”
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  16. 616

    Development of an algorithm for determining the heat transfer coefficient of the body of an isothermal vehicle based on the results of analysis of the heat exchange processes occur... by A. A. Golubin, S. N. Naumenko

    Published 2017-10-01
    “…The article analyzes the heat exchange processes the thermal imaging method using a thermal imaging device. An occurring in the body of an isothermal vehicle when determining algorithm for determining the heat transfer coefficient is proposed, the heat transfer coefficient K by the internal heating method. which makes it possible to calculate its value with an accuracy not The differences are shown in the values of the heat transfer coef-exceeding 5 %, which is regulated by a number of international ficients obtained by the equilibrium internal heating method and normative documents, while reducing the duration of the experiment by at least 6 times. …”
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  17. 617
  18. 618

    A Data-Driven Method for Determining DRASTIC Weights to Assess Groundwater Vulnerability to Nitrate: Application in the Lake Baiyangdian Watershed, North China Plain by Xianglong Hou, Liqin Peng, Yuan Zhang, Yan Zhang, Yunxia Wang, Wenzhao Feng, Hui Yang

    Published 2025-03-01
    “…The new method considers both single factors and the relationship among factors, overcomes the subjectivity of weight determination, and is theoretically applicable to various hydrogeological environments and as a general weight determination method. …”
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    Article
  19. 619

    Determination of the Activity Coefficients of Components in a Di-2-ethylhexylphosphoric Acid–n-Hexane Binary System Using Gas Chromatography by Vladimir Glebovich Povarov, Olga Vladimirovna Cheremisina, Daria Artemovna Alferova, Aleksandr Tomasovich Fedorov

    Published 2025-06-01
    “…This study was devoted to the determination of n-hexane’s concentrations in the vapor phase over D2EHPA solutions at 293.0 K using gas chromatography (GC) and isopiestic (IP) methods. …”
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  20. 620

    Determination of the conversion coefficients from the dose-length product to the effective dose for CT-examinations of the whole body including lower extremitie by P. S. Druzhinina, L. A. Chipiga, A. V. Vodovatov, I. V. Soldatov, Z. A. Lantukh, K. V. Tolkachev

    Published 2025-01-01
    “…Today in the Russian Federation, the existing method for assessing patients` effective doses during computed tomography in the form of conversion coefficients from the dose-length product provides for the area from the head to the upper third of the femur but does not consider the possibility of scanning the whole body including the lower extremities. …”
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    Article