Search alternatives:
coefficient » coefficiency (Expand Search)
efficient » efficiency (Expand Search)
Showing 4,221 - 4,240 results of 15,724 for search 'determined (coefficient OR efficient) methods', query time: 0.31s Refine Results
  1. 4221

    Structural, electronic, and optical properties of (2D)MXenes Zr₂CT₂(T = O and F) studied using the (DFT + U) method by Shahab Rahimi, Ebrahim Heidari Semiromi, Alireza Mostafaei

    Published 2025-07-01
    “…Using the Quantum ESPRESSO package and advanced computational methods including density functional theory (DFT), the generalized gradient approximation (GGA), and the Perdew-Burke-Ernzerhof (PBE) exchange-correlation functional, the optimal Hubbard U parameters for Zr atoms in the semiconductor Zr₂CO₂ and the metallic Zr₂CF₂ MXenes were determined. …”
    Get full text
    Article
  2. 4222
  3. 4223

    A Rice-Mapping Method with Integrated Automatic Generation of Training Samples and Random Forest Classification Using Google Earth Engine by Yuqing Fan, Debao Yuan, Liuya Zhang, Maochen Zhao, Renxu Yang

    Published 2025-03-01
    “…In addition, the extracted area of LR_Rice was highly consistent with the agricultural statistical area; the coefficient of determination R<sup>2</sup> was 0.9915, and the RMSE was 22.5 kha. …”
    Get full text
    Article
  4. 4224

    Simultaneous Quantification of Limonin, Two Indolequinazoline Alkaloids, and Four Quinolone Alkaloids in Evodia rutaecarpa (Juss.) Benth by HPLC-DAD Method by Pei-ting Zhang, Bi-yan Pan, Qiong-feng Liao, Mei-cun Yao, Xin-jun Xu, Jin-zhi Wan, Dan Liu, Zhi-yong Xie

    Published 2013-01-01
    “…A simple and efficient HPLC-DAD (225 nm) method was developed and validated for the simultaneous determination of limonin and six key alkaloids (evodiamine, rutaecarpine, 1-methyl-2-undecyl-4(1H)-quinolone, evocarpine, 1-methy-2-[(6Z,9Z)]-6,9-pentadecadienyl-4-(1H)-quinolone, and dihydroevocarpine) in Evodia rutaecarpa (Juss.) …”
    Get full text
    Article
  5. 4225
  6. 4226

    Spatial estimation of large-scale soil salinity using enhanced inverse distance weighting method and identifying its driving factors by Yannan Liu, Yingzhi Qian, Yan Zhu, Wanli Xu, Guanghui Wei, Jiesheng Huang, Yuhao Qiao, Qianxi Ma

    Published 2025-08-01
    “…Compared with the results of the ordinary kriging, local polynomial interpolation and inverse distance weighting methods, the accuracy of AIDW ranked first with the root mean square error (RMSE) from 0.59 to 1.48 g/kg and determination coefficient (R²) from 0.91 to 0.99. …”
    Get full text
    Article
  7. 4227

    Measurement and assessment of human resources in information economy: substantive and methodological aspect by Krasova Elena

    Published 2024-12-01
    “…The following weaknesses of the existing methodical base were identified: lack of a unified understanding of the category of “human resources” and some related categories, complexity of selecting indicators and indirectness of assessments, mixing different types of indicators in one measurement procedure, shift towards assessing the socio-demographic component, underestimation of feedback in the interaction of human resources with the economic, social, institutional environment, underdeveloped synthesis of traditional and digital methods. …”
    Get full text
    Article
  8. 4228

    Predicting Methods for Analyzing Data on Fatal Outcome Possibility in the Combination of Acute Coronary Syndrome and Atrial Fibrillation According to the Krasnodar Region Registry by Z. G. Tatarintseva, E. D. Kosmacheva, S. V. Kruchinova, V. A. Akinshina, A. A. Khalafyan

    Published 2019-07-01
    “…Each patient belonged to one of 3 groups according to the type of AF: new-onset AF in ACS patient, paroxysmal AF, documented in an anamnesis before the episode of ACS and the constant or persistent form of AF.Results. To determine predictors of models predicting the possible fatal outcome of a patient, the Spearman correlation coefficient was used. …”
    Get full text
    Article
  9. 4229

    Russian transport industry in the reproduction system: analysis of dynamics and the current level of development by L. I. Dmytrychenko, E. S. Shilets, O. A. Chmil

    Published 2024-07-01
    “…Socio-economic functions of transport determined its role as the most important component in the reproduction sys-tem. …”
    Get full text
    Article
  10. 4230

    How Rich is Platelet Rich Plasma? A Simple Preparation Method of PRP and Its Quality According to Various Classification Systems by Felice FAIZAL, Balachandra NAMBIAR, Raja CHATTERJEE, Praveer RANJAN

    Published 2020-09-01
    “…The results were compared and analysed using statistical methods to determine the efficacy of concentrating platelets by this method. …”
    Get full text
    Article
  11. 4231

    Testing of preparations for protection of grain crops from pests in the Steppe of Ukraine by S. Semenov

    Published 2025-03-01
    “…Methods. Field — records of pests and crop yields in accordance with generally accepted methods; calculation — determination of technical (biological) and economic efficiency of preparations and their mixtures; mathematical and statistical — assessment of the reliability of research results. …”
    Get full text
    Article
  12. 4232

    Optimal Parameter Extraction of PEM Fuel Cell Using a Hybrid Weighted Mean of Vectors and Nelder-Mead Simplex Method by Rahul Khajuria, Mahipal Bukya, Ravita Lamba, Rajesh Kumar

    Published 2024-01-01
    “…This paper proposes a new hybrid approach based on weIghted meaN oF vectOrs and Nelder-Mead (INFONM) method for PEM fuel cell parameter extraction. An optimization problem is framed and a sum of squared error (SSE) based objective function is formulated between estimated and experimental voltages. …”
    Get full text
    Article
  13. 4233

    UHPLC/MS-MS Analysis of Six Neonicotinoids in Honey by Modified QuEChERS: Method Development, Validation, and Uncertainty Measurement by Michele Proietto Galeano, Monica Scordino, Leonardo Sabatino, Valentina Pantò, Giovanni Morabito, Elena Chiappara, Pasqualino Traulo, Giacomo Gagliano

    Published 2013-01-01
    “…A modified QuEChERS method has allowed a very rapid and efficient single-step extraction, while the detection was performed by UHPLC/MS-MS. …”
    Get full text
    Article
  14. 4234

    Enhancing formation resistivity factor estimation in carbonate reservoirs using electrical zone indicator and multi-resolution graph-based clustering methods by Milad Mohammadi, Mohammad Emami Niri, Abbas Bahroudi, Aboozar Soleymanzadeh, Shahin Kord

    Published 2025-08-01
    “…The integration of MRGC with EZI led to substantial improvements in model performance, increasing the coefficient of determination (R²) for FRF estimation from 0.924 to 0.974. …”
    Get full text
    Article
  15. 4235

    Automated software package for selecting transport technology for grain transportation by road freight transport by V. Tsopa, T. Bilko, S. Cheberyachko, O. Deryugin, B. Hrymalo

    Published 2025-05-01
    “…The software package implemented an algorithm of eight steps: entering groups of indicators, their pairwise analysis, determining basic indicators based on the total matrix of relationships, entering the values of basic and reference indicators of transport technologies for grain transportation and weight coefficients, constructing gray analysis matrices, determining the index of basic indicators relative to target ones achievement. …”
    Get full text
    Article
  16. 4236
  17. 4237

    Assessment of air pollution resulting from the South Baghdad power plant using the Gaussian model by RUQAYA A. Al-NASER, MONIM H. AL-JIBOORI

    Published 2025-03-01
    “…The atmospheric stability was determined using a three-dimensional ultrasonic anemometer and stability classes were determined using the Monin-Obukhov method and applied Lagrange scale to calculate vertical and horizontal dispersion coefficients. …”
    Get full text
    Article
  18. 4238

    The performance evaluation of chaotic maps in estimating the shape parameters of radial basis functions to solve partial differential equations by Javad Alikhani Koupaei, Mohammad Javad Ebadi, Majid Iran Pour

    Published 2024-06-01
    “…Purpose: This study aims to investigate the potential of chaotic optimization algorithms in improving performance compared to other optimization methods, focusing on determining the appropriate shape parameter of radial basis functions for solving partial differential equations.Methodology: In this research, a two-stage process is employed where the Kansa method, based on meshless local techniques, is combined with the FCW method. …”
    Get full text
    Article
  19. 4239

    Assessing the role of field isolated Pseudomonas and Bacillus as growth‐promoting rizobacteria on avocado (Persea americana) seedlings by Richard A. Solórzano‐Acosta, Kenyi R. Quispe

    Published 2024-09-01
    “…Abstract Introduction This research aims to assess the efficacy of two genera of rhizobacteria from avocado field isolated: Pseudomonas and Bacillus, as plant growth‐promoting microorganisms in Hass avocado trees grafted onto Zutano rootstock. Materials and Methods The siderophore‐producing and phosphate‐solubilizing capacity of each isolated strain was determined and plant growth‐promoting activity, nutrient accumulation, and nutrient use efficiency in Zutano variety avocado seedlings were evaluated. …”
    Get full text
    Article
  20. 4240

    Prediction of the Calorific Value and Moisture Content of <i>Caragana korshinskii</i> Fuel Using Hyperspectral Imaging Technology and Various Stoichiometric Methods by Xuehong De, Haoming Li, Jianchao Zhang, Nanding Li, Huimeng Wan, Yanhua Ma

    Published 2025-07-01
    “…Finally, a comprehensive comparison of the modeling effectiveness of all methods was carried out, and the SNV-IRIV-PLSR modeling combination was the best for water content prediction, with its prediction set determination coefficient <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mrow><mo>(</mo><msubsup><mrow><mi>R</mi></mrow><mrow><mi>P</mi></mrow><mrow><mn>2</mn></mrow></msubsup><mo>)</mo></mrow></semantics></math></inline-formula>, root mean square error of prediction (RMSEP), and relative percentage deviation (RPD) of 0.9693, 0.2358, and 5.6792, respectively. …”
    Get full text
    Article