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Experimental study on effective stress coefficient of sandstone based on Mohr–Coulomb criterion under hydraulic-mechanical coupling
Published 2025-05-01“…A novel method for calculating the effective stress coefficient, based on the effective stress principle and the Mohr–Coulomb criterion, is proposed, leading to several key conclusions. …”
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1083
Method validation of an inductively coupled plasma mass spectrometry (ICP-MS) assay for the analysis of magnesium, copper and zinc in red blood cells
Published 2024-11-01“…The resulting diluted specimen was analyzed using inductively coupled plasma mass spectrometry (ICP-MS) to quantitatively determine the levels of Mg, Cu, and Zn. The method underwent validation for accuracy, precision, method comparison, linearity, analytical sensitivity, and carryover. …”
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1084
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
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. …”
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1085
Enhancing formation resistivity factor estimation in carbonate reservoirs using electrical zone indicator and multi-resolution graph-based clustering methods
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. …”
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1086
Prediction of the Calorific Value and Moisture Content of <i>Caragana korshinskii</i> Fuel Using Hyperspectral Imaging Technology and Various Stoichiometric Methods
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. …”
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1087
Optimal Homotopy Asymptotic Method for Investigation of Effects of Thermal Radiation, Internal Heat Generation, and Buoyancy on Velocity and Heat Transfer in the Blasius Flow
Published 2021-01-01“…The influences of the Grashof number, internal heat generation, the Biot number, radiation parameter, and the Prandtl number on the skin-friction coefficient, the fluid velocity profile, and temperature distribution have been determined and discussed in detail through several plots. …”
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1088
Effect of HVOF method spraying parameters on phase composition and mechanical and tribological properties of 86WC-10Co-4Cr coating
Published 2024-09-01“…The phase composition, microstructure and distribution of elements were analyzed using X-ray diffraction (XRD), scanning electron microscopy (SEM) methods. The hardness of the samples was measured on a microhardness tester using the Vickers method, the friction coefficient and the wear rate were investigated using a friction and wear tester. …”
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1089
Reserve Estimation from Early Time Production Data in Geopressured Gas Reservoir: Gas Production of Cumulative Unit Pressure Drop Method
Published 2021-01-01“…There is high uncertainty in reserve estimation during the early development of deep ultrahigh pressure gas reservoirs, largely because it remains challenging in accurately determining the formation compressibility. To overcome this, starting from the definition of compressibility, a novel gas production of cumulative unit pressure drop analysis method was established, of which the effectiveness was proven by applications in calculating the reserves of three gas reservoirs. …”
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1090
Spectrophotometric determination of xylometazoline in nasal drops
Published 2018-08-01“…Coefficients of stoichiometric relationship were also determined by means of molar ratios and continuous changes. …”
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1091
A novel quality by design approach for developing an HPLC method to analyze herbal extracts: A case study of sugar content analysis.
Published 2018-01-01“…The aim of this study was to present a novel analytical quality by design (AQbD) approach for developing an HPLC method to analyze herbal extracts. In this approach, critical method attributes (CMAs) and critical method parameters (CMPs) of the analytical method were determined using the same data collected from screening experiments. …”
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1092
Evaluating of the Relationships between aAverage Particle Size and Microstructure-Mechanical Properties of Materials Produced in Different Compositions using Ultrasonic Method
Published 2024-12-01“…Pulse-echo ultrasonic test, which is one of the non-destructive testing methods, was used to measure ultrasonic quantities such as longitudinal velocity (VL), shear velocity (VT) and attenuation coefficient (α) in FeCrMn composites. …”
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1093
Analysis of the Influence of Different Processing Methods on the Main Effective Components in Oviductus Ranae by High-Performance Liquid Chromatography with Diode Array Detector
Published 2024-01-01“…In this study, a simple and sensitive high-performance liquid chromatography-diode array detector (HPLC-DAD) method was developed for the simultaneous determination of five main effective components (1-methyl hydantoin, estradiol, cholesterol, 7-keto-cholesterol, and 4-cholesten-3-one) in OR and its different processed products. …”
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1094
Identification of Suitable Areas for Small Water Storage Reservoir Construction Using Various Decision-Making Methods (Case Study: Zanjan Province)
Published 2025-03-01“…The zoning maps of criteria were prepared, and after conducting pairwise comparisons and determining their weight coefficients, the final land classification map was produced. …”
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1095
Application of Levenberg-Marquardt Backpropagation Algorithm in Artificial Neural Network for Self-Calibration of Deflection Type Wheatstone Bridge Circuit in CO Electrochemical Ga...
Published 2024-04-01“…The Levenberg-Marquardt backpropagation algorithm (LMBP) is utilized in the Artificial âNeural Network model to minimize the Mean Squared Error (MSE) and identify the most suitable parameters in the âproposed method.ââ âThe model under consideration has been developed and trained using real-time data.ââ âBased on âthe experimental and evaluation outcomes, it can be concluded that the suggested model has an MSE value of ââ0.28249 and an R2 coefficient of determination of 0.99992, indicating high accuracy and precision. …”
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1096
Development of models and assessment of the world walnut variety fund by fruit quality
Published 2023-02-01Get full text
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1097
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1098
Research on the application of the HPLC/PDA method to enhance the quality standards of Folium nelumbinis based on the bioactive nuciferine and quercetin 3-O-glucuronide
Published 2025-05-01“…This research successfully establishes high-quality control standards for Lotus leaves in accordance with WHO guidelines and the Vietnamese Pharmacopoeia V. The validated HPLC method ensures precise and reliable quality control, supporting research consistency and practical herbal medicine application.…”
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1099
Determination of an Injection Sprayer's Technological Parameters
Published 2018-11-01“…(Materials and methods) The injection sprayer belongs to the class of twophase liquidgas isothermal jet devices with the formation of an airgas mixture at the outlet. …”
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