-
2121
Reliability Analysis of High-Pressure Tunnel System Under Multiple Failure Modes Based on Improved Sparrow Search Algorithm–Kriging–Monte Carlo Simulation Method
Published 2024-11-01“…The reliability indexes of each failure mode decrease with the increase in the coefficient of variation (COV) of random variables. …”
Get full text
Article -
2122
Continuous enzyme-coupled assay of phosphate- or pyrophosphate-releasing enzymes
Published 2012-08-01“…The activity of Klenow enzyme was quantitatively determined, and it was found in agreement with the corresponding activity determined by traditional methods. …”
Get full text
Article -
2123
Rapid simultaneous determination of organophosphorus pesticides in human serum and urine by liquid chromatography-mass spectrometry
Published 2010-01-01“…The aim of this study was to develop and validate an original and sensitive method for the detection and quantitation of organophosphorus pesticides (dimethoate, diazinon, malathion and malaoxon) in human biological matrices (serum, urine). …”
Get full text
Article -
2124
Role of emotional control on anxiety and stress among cancer patients
Published 2024-09-01“…The relationships between the quantitative variables were determined using Spearman's rho coefficients, and the relationships between the quantitative and qualitative variables were verified using Kruskal‐Wallis tests. …”
Get full text
Article -
2125
Strawberry Freshness Assessment by Hyperspectral Imaging
Published 2025-02-01“…Model evaluation was done using the coefficients of determination (R2), relative error (RE), and root mean squared error (RMSE). …”
Get full text
Article -
2126
Aerosol Impact on UV Solar Irradiance and Diffuse Fraction
Published 2024-12-01“…Also, aerosols contribute to the changes in nature (direct/diffuse) of the UV solar radiation received by a biological organism. This work quantitatively evaluates the aerosol effects on all components of solar UV irradiance (direct-normal, diffuse and global) under clear sky conditions. …”
Get full text
Article -
2127
Shear Storage Capacity of Vertical Stiffener Joints between Concrete-Filled Double Steel Tubular Columns and Steel Beams
Published 2019-01-01“…The results calculated by the theoretical model and the available experimental data were compared, and then one new concept of shear storage coefficient was proposed for the determination of the shear storage capacity of the joint, which quantitatively explained the ductility failure progression of the joint specimens in the seismic performance test. …”
Get full text
Article -
2128
Real-Time Estimation Methods for the Frequency Support Function Based on a Virtual Wind Turbine
Published 2025-05-01“…The proposed model is based on a turbine state observer that estimates wind speed and the power coefficient, and subsequently estimates generator power, generator speed, and blade pitch angle across various operating modes. …”
Get full text
Article -
2129
Artificial neural networks analysis of entropy generation in magnetic-micropolar nanofluid flow equipped with porous media and Darcy-Forchheimer law
Published 2025-05-01“…The Keller-Box technique is utilized to discretized the differential equations and ANN- LMBP technique is applied for the prediction of non-dimensional physical quantitates. These non-dimension data set is divided into three part: 80 % for training, 10 % for testing and 10 % for validation. …”
Get full text
Article -
2130
Multi optimization of laser drilling of GFRP composites via TOPSIS approach
Published 2025-07-01“…Based on closeness coefficient (Si*) of TOPSIS, the optimum levels of parameters were identified and analysis of variance (ANOVA) was used to quantitatively assess the influence of the input parameters on the output responses. …”
Get full text
Article -
2131
Individual Travel Knowledge Graph-Based Public Transport Commuter Identification: A Mixed Data Learning Approach
Published 2022-01-01“…The evaluation indexes of overall accuracy and kappa coefficient of the constructed model are 94.5% and 87.9% separately. …”
Get full text
Article -
2132
Hydraulic characteristics of sedimentary deposits at the J-PARC proton-accelerator, Japan
Published 2007-12-01“…Grain-size distribution derived from sieve analysis and the coefficient of uniformity showed that soils are poorly sorted. …”
Get full text
Article -
2133
Machine learning based optimization of titanium electropolishing using artificial neural networks and Taguchi design in eco-friendly electrolytes
Published 2025-08-01“…This investigation provides a practical pathway for optimizing processes in environmentally sustainable manufacturing by quantitatively analyzing the nonlinear complexity of electrochemical surface treatments.…”
Get full text
Article -
2134
Data-Driven-Based Attribution of Runoff Changes in Tuwei River Basin in the Northern Windy-Sandy Region of Shaanxi
Published 2022-01-01“…The key point in analyzing the attribution of runoff changes is whether the natural runoff process of the basin can be accurately simulated.However,the application accuracy of hydrological models in arid and semi-arid regions of the Loess Plateau is generally not high.Taking the Tuwei River basin in the northern windy-sandy region of Shaanxi in the middle reach of the Yellow River as an example,this paper proposed an improved natural runoff simulation method based on the data-driven approach,so as to quantitatively analyze the effects of climate changes and human activities on runoff changes in the Tuwei River basin.The results show that the annual runoff series in the basin decreased significantly from 1961 to 2015,and there were two abrupt changes in 1979 and 1996,respectively.The annual runoff of the two periods (1980—1996 and 1997—2015) is 25.8% and 47.1% lower than that of the natural period (1961—1979),respectively.The runoff simulation accuracy of the three data-driven methods after improvement rises significantly.Specifically,the improved method proposed by Zhao Wenlin has the highest accuracy,and the Nash-Sutcliffe efficiency coefficient of annual runoff simulation in the natural period is 0.77.Climate change is the main reason for the significant decrease in the runoff between 1980 and 1996 (with a contribution of up to 80.9%).However,from 1997 to 2015,the contribution of climate change and human activities to the decrease in the runoff changed,with the influence of human activities increasing to a proportion of 58.8%.…”
Get full text
Article -
2135
Frequency modulation technology for power systems incorporating wind power, energy storage, and flexible frequency modulation
Published 2025-03-01“…Under the frequency modulation control strategy, as the droop coefficient increased, the steady-state frequency deviation increased by 0.46%, and the safety margin of steady-state frequency deviation increased by 12%. …”
Get full text
Article -
2136
Application of Regression Analysis to Identify the Soil and Other Factors Affecting the Wheat Yield
Published 2022-01-01“…In farming and related fields, numerous connections exist that should be distinguished quantitatively. Several factors affect the various crop yields in different dimensions. …”
Get full text
Article -
2137
Attribution Analysis of Runoff Variability in Northern-Huai River Plain Based on Improved Budyko-Fu Equation
Published 2024-07-01“…Subsequently, the elasticity coefficient method is used to quantitatively evaluate the response sensitivity and contribution of precipitation, phreatic evapotranspiration, and other factors to the variation in surface water resources. …”
Get full text
Article -
2138
Vulnerability analysis of the economic-social-ecological complex system of Island tourism destinations.
Published 2025-01-01“…Taking Zhoushan, which is a famous island tourism destination in China, as a case, based on the vulnerability analysis framework of exposure, sensitivity, and adaptive capacity, this paper employs the entropy value method, comprehensive index method, system coordination degree model, and obstacle model to quantitatively measure the vulnerability of the economic-social-ecological complex system of Zhoushan from 2011 to 2022. …”
Get full text
Article -
2139
RESEARCH ON PARAMETRIC MODELING METHOD FOR RESIDUAL STRENGTH OF SUBSEA OIL AND GAS PIPELINE
Published 2018-01-01“…In order to solve the problem of safety assessment effectively for subsea oil and gas pipeline,the rules about pipeline residual strength changing with the defect geometric information such as length,width and depth were analyzed using finite element method( FEM),and on this basis the parameterized model of pipeline residual strength was obtained,and the unknown coefficients in the model were identified using improved genetic algorithm,thus the model can describe the quantitative relation between the residual strength and defect geometrical quantity. …”
Get full text
Article -
2140
A machine-learning framework for accelerating spin-lattice relaxation simulations
Published 2025-03-01“…Here we present an accelerated computational framework based on machine-learning models for the prediction of molecular vibrations and spin-phonon coupling coefficients. We apply this method to three open-shell coordination compounds exhibiting long relaxation times and show that this approach achieves semi-to-full quantitative agreement with ab initio methods reducing the computational cost by about 80%. …”
Get full text
Article