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Showing 4,141 - 4,160 results of 15,724 for search 'determined (coefficient OR efficient) (method OR methods)', query time: 0.40s Refine Results
  1. 4141

    Prediction and Mapping of Soil Total Nitrogen Using GF-5 Image Based on Machine Learning Optimization Modeling by LIU Liqi, WEI Guangyuan, ZHOU Ping

    Published 2024-09-01
    “…Model performance was evaluated using three indicators: Coefficient of determination (R²), root mean square error (RMSE), and relative prediction deviation (RPD), to assess the prediction accuracy of different models.…”
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  2. 4142

    Analysis of the thermodynamic efficiency of a theoretical multi-stage compressor with the combined use of adiabatic, isothermal and subisothermal compression processes by V. L. Yusha

    Published 2024-12-01
    “…A terminological classification of polytropic processes is proposed, including the concept of a subisothermal process. A method has been developed for determining the polytropic index of a subisothermal process under theoretical combined multi-stage compression, as well as methods for comparative assessment of the energy efficiency of various options for theoretical combined multi-stage compression and the thermal load on heat exchange equipment. …”
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  3. 4143

    Determination of the New Food Ingredient Pyrroloquinoline Quinone Disodium Salt in Foods by Centrifugal Ultrafiltration Coupled with High Performance Liquid Chromatography by PAN Cheng, WU Yuan, MENG Peng, HUANG Yonghui, XIAO Jing, XU Dunming

    Published 2025-04-01
    “…This study established a method for the determination of pyrroloquinoline quinone (PQQ) disodium salt, a newly approved food ingredient in China, in foods using centrifugal ultrafiltration as a novel pretreatment technique combined with high performance liquid chromatography (HPLC). …”
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    Article
  4. 4144

    Eco-friendly optical sensor membrane for nickel ion detection in water and food samples by Abdullah H. Alluhayb, Alaa M. Younis, Ahmad O. Babalghith, Alaa S. Amin

    Published 2025-01-01
    “…A sustainable method is investigated for the accurate, selective, and highly sensitive identification of minimal nickel ion concentrations across various environments. …”
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  5. 4145

    Transient Subcooled Boiling in Minichannels: Experimental Study and Numerical Modelling Using Trefftz Functions and ADINA by Beata Maciejewska, Magdalena Piasecka, Paweł Łabędzki

    Published 2025-07-01
    “…In both approaches, the heat transfer coefficient at the interface between the heated foil and the working fluid was determined by applying a Robin-type boundary condition, which required knowledge of the temperatures in both the foil and the fluid, along with the temperature gradient within the foil. …”
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  6. 4146

    Determination of rice (Oryza sativa L.) drought stress levels based on chlorophyll a fluorescence through independent component analysis by Q. XIA, H. TANG, J.L. TAN, S.I. ALLAKHVERDIEV, Y. GUO

    Published 2025-03-01
    “…This work provides a rice drought stress levels determination method and highlights the importance of applying dimension reduction methods for ChlF analysis. …”
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  7. 4147
  8. 4148

    Investigation of Dynamic Characteristics of an Automated Position Long-Stroke Pneumatic Actuator of Fabrication System by D. A. Korotych, V. S. Sidorenko, S. P. Prikhodko

    Published 2023-09-01
    “…Proportional drive control was presented as a method of achieving the result. For long-stroke drive movements, schematic solution and design scheme were visualized in detail (presented as drawings). …”
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  9. 4149

    Attention-Based Convolutional Aggregation: An Efficient Model for Off-Gas Profile Forecasting and Dynamic Pre-Control of BOF Steelmaking by Tian-yi Xie, Jun-guo Zhang, Lan-jie Li, Fei Zhang, Shuai Liu, Han-jie Guo

    Published 2024-12-01
    “…It incorporates artificial intelligence (AI) techniques, such as aggregation structures, causal dilation convolution, attention mechanisms, residual connections, etc. Its forecasting coefficient of determination (R 2 ) values for the curves of CO, CO2, and CO + CO2 reached 0.9386, 0.8566, and 0.9428, respectively, while the mean squared errors (MSEs) values were 47.3884, 11.9314, and 54.3583, respectively. …”
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  10. 4150

    Factors affecting the technical efficiency of potato production under the command area of the PMAMP project in Nepal: The case of Bajhang district by Shikshit Parajuli, Rabin Thapa

    Published 2024-12-01
    “…This study employed a one-step stochastic frontier method to determine the technical efficiency of potato production in the district. …”
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  11. 4151

    Intensity of biological accumulation of microelements (zinc and copper) plants of Echinacea purpurea L. under conditions of Western Siberia by N. N. Zharkova, V. V. Sukhotskaya, Yu. I. Ermokhin

    Published 2020-05-01
    “…In soil and plant samples, the content of mobile forms of Zn and Cu was determined by the atomic absorption method.Results. …”
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  12. 4152

    Determination of 19 polyphenolic compounds in tea by ultra-high performance liquid chromatography combined with quadrupole-time of flight mass spectrometry by Jian Li, Junmei Ma, Yan Zhang, Lei Zheng

    Published 2022-05-01
    “…A rapid method was presented for the determination of 19 polyphenols in tea by ultra-high performance liquid chromatography coupled with quadrupole-time of flight mass spectrometry (UPLC-Q-TOF MS). …”
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  13. 4153

    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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  14. 4154

    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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  15. 4155

    Attention Lempel-Ziv complexity: an improved Lempel-Ziv complexity with high computational efficiency for bearing early fault detection by Jiancheng Yin, Wentao Sui, Xuye Zhuang, Yunlong Sheng

    Published 2025-06-01
    “…The four sets of life-cycle data from two life-cycle datasets verify that the method can effectively realize the early fault detection of bearings. …”
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  16. 4156
  17. 4157

    Age- and sex-standardized prevalence of alcohol consumption and its determinants in the western region of Iran, Ilam: a cross-sectional study by Arezoo Sarmad, Dilan Ahmadzadeh, Mohammad Bazyar, Kamran Malekan, Zahra Malekan, Reza Pakzad

    Published 2024-12-01
    “…The most powerful determinants (according to standardized coefficient) for alcohol consumption were hookah smoking (standardized coefficient: 0.588) and high education level (0.743). …”
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  18. 4158

    Imputing Covariance for Meta-Analysis in the Presence of Interaction by Enwu Liu, Ryan Yan Liu

    Published 2024-12-01
    “…The overall variance of the combined coefficient is typically derived using the inverse-variance method. …”
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  19. 4159

    Variational quantum circuit-based quantum machine learning approach for predicting corrosion inhibition efficiency of pyridine-quinoline compounds by Muhamad Akrom, Supriadi Rustad, Hermawan Kresno Dipojono

    Published 2024-06-01
    “…With a coefficient of determination (R2), root mean square error (RMSE), mean absolute error (MAE), and mean absolute deviation (MAD) values of 0.989, 0.027, 0.024, and 0.019, respectively, VQC performs better. …”
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  20. 4160

    POSSIBILITIES FOR ECHOCARDIOGRAPHIC DETERMINATION OF PULMONARY ARTERY PRESSURE IN PATIENTS WITH SYSTEMIC CONNECTIVE TISSUE DISEASES: DATA OF A RHEUMATOLOGY EXPERT CENTER by E. V. Nikolaeva, Yu. O. Korsakova, I. A. Kurmukov, S. I. Glukhova, N. N. Yudkina, A. V. Volkov

    Published 2015-03-01
    “…Thus, the Bland–Altman analysis revealed a systematic disparity, suggesting a weak agreement of the results of the two methods determining SPAP and RAP. Conclusion. Our investigation demonstrated that echoCG proved to be a valid and reliable screening method for PH in patients with SCTD. …”
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