Search alternatives:
variable » variables (Expand Search)
coefficient. » coefficiency. (Expand Search)
efficient. » efficiency. (Expand Search)
variable » variables (Expand Search)
coefficient. » coefficiency. (Expand Search)
efficient. » efficiency. (Expand Search)
-
1321
Maximising Achievable Rate Using Intelligent Reflecting Surface in 6G Wireless Communication Systems
Published 2025-08-01“…Intelligent reflecting surface (IRS) is a promising technique which aims to shift the paradigm of uncontrollable wireless environment to a controllable one by adding the function of reconfigurability using multiple passive reflecting elements. …”
Get full text
Article -
1322
Optimisation of the performance and structure of soluble ball seat metal sealing rings based on response surface
Published 2025-01-01“…The increase of groove parameters (groove width and depth) can enhance the contact pressure, and at the same time, increase the equivalent stress, which may lead to local strength deficiency.Through the sensitivity analysis, the sensitivity coefficients of the radius of the metal seal ring to the equivalent force and contact pressure were found to reach 0.67 and 0.82, which were the dominant variables affecting the sealing performance; the width and depth of the grooves regulated the stress distribution through the geometric compensation mechanism. …”
Get full text
Article -
1323
A 3D mixed frame element with multi-axial coupling for thin-walled structures with damage
Published 2014-07-01“…The beam formulation is derived on the basis of the Hu-Washizu variational principle, expressed as function of four independent fields: the standard displacements, strains and stresses and the additional warping displacement. …”
Get full text
Article -
1324
Pedestrian detection method based on improved YOLOv5
Published 2024-12-01“…We optimize the regression prediction of the anchor using the Efficient IOU Loss (EIOU) function. Experimental data show that the mean average precision (mAP) of the HOD-YOLOv5 model achieves 83.5%, compared to YOLOv5, which is 4.4% higher than original YOLOv5, and the recognition speed of the HOD-YOLOV5 reaches 106.7 frames per second (FPS). …”
Get full text
Article -
1325
Age-Related Changes in Corneal Deformation Dynamics Utilizing Scheimpflug Imaging.
Published 2015-01-01“…Raw Scheimpflug images were used to extract changes in anterior and posterior corneal profiles, which were further modelled by an orthogonal series of Chebyshev polynomial functions. Time series of the polynomial coefficients of even order exhibited a dynamic behavior in which three distinct stages were recognized. …”
Get full text
Article -
1326
Non-Iterative Estimation of Multiscale Geographically and Temporally Weighted Regression Model
Published 2025-04-01“…The results demonstrate that the non-iterative estimation method for MGTWR significantly enhances computational efficiency while effectively capturing the scale effects of spatiotemporal variation in the regression coefficient functions for each predictor.…”
Get full text
Article -
1327
A New Four‐Component L*‐Dependent Model for Radial Diffusion Based on Solar Wind and Magnetospheric Drivers of ULF Waves
Published 2023-07-01“…We investigate the performance of the new models by characterizing the model residuals as a function of each independent variable and by comparing to existing radial diffusion models during a quiet geomagnetic period and through a geomagnetic storm. …”
Get full text
Article -
1328
Radar-equivalent snowpack: reducing the number of snow layers while retaining their microwave properties and bulk snow mass
Published 2025-08-01“…A reduction in the mathematical complexity of SWE retrieval cost functions and a reduction in computation of up to 80 % can be gained by using fewer layers in the SWE retrieval.…”
Get full text
Article -
1329
Developing a novel hybrid model based on GRU deep neural network and Whale optimization algorithm for precise forecasting of river’s streamflow
Published 2025-06-01“…The Pearson’s correlation coefficient (PCC) and Cosine Amplitude Sensitivity (CAS) as feature (input) selection process determine the only precipitation (P m ) as the most effective input variable among a list of on-site potential climate time series parameters recorded in the study area. …”
Get full text
Article -
1330
qDESH: a method to quantify disproportionately enlarged subarachnoid space hydrocephalus
Published 2025-07-01Get full text
Article -
1331
Quality of Life in Patients with Multiple Sclerosis
Published 2019-06-01“…In order to calculate the variables, the following measures were used: arithmetic mean, standard deviation, coefficient of variation, asymmetry coefficient, kurtosis coefficient, Person linear correlation coefficient, Spearman rank correlation coefficient. …”
Get full text
Article -
1332
Stochastic Analysis of Nonlinear Vehicle-Track Coupled Dynamic System and Its Application in Vehicle Operation Safety Evaluation
Published 2019-01-01“…The nonlinear coupled vehicle-track dynamic system is used to accurately describe the wheel-rail contact state. The stochastic function-spectral representation is used to simulate the random track irregularity in the time domain for the first time; consequently, the frequency components in the irregularity are preserved and random variables are reduced. …”
Get full text
Article -
1333
Predicting the Probability of Failure in Truss Structures Using Artificial Neural Networks
Published 2025-10-01“…The limitation of node displacement is considered as a limit state function. The data was split as 60% for training and 40% was used for testing and validation. …”
Get full text
Article -
1334
Application of machine learning and genetic optimization algorithms for modeling and optimizing soybean yield using its component traits.
Published 2021-01-01“…Yield is a complex trait and reliant on various related variables called yield components. In this study, the five most important yield component traits in soybean were measured using a panel of 250 genotypes grown in four environments. …”
Get full text
Article -
1335
An Investigation of Knee Injury Prevalence and its Mechanism among Premier League Soccer Referees in Iran
Published 2017-03-01“…Using the Pearson correlation coefficient, this study examined the relationships between different variables including KOS subscales as well as the current level of self-reported knee joint function and proprioception. …”
Get full text
Article -
1336
Analysis of Mobile JKN Application Service Quality With E-GovQual Method and IPA
Published 2024-11-01“…The results of the coefficient of determination (R-Square) show that overall, the variables of ease of use, reliability, trust, content and appearance, functionality and interaction and citizen support significantly affect service quality by 88.6%. …”
Get full text
Article -
1337
Natural language processing reveals network structure of pain communication in social media using discrete mathematical analysis
Published 2025-08-01“…The network exhibited a sparse overall density (0.0055) but a high clustering coefficient (0.7700), indicating the presence of distinct thematic communities. …”
Get full text
Article -
1338
A Hybrid Model for Carbon Price Forecasting Based on Secondary Decomposition and Weight Optimization
Published 2025-07-01“…Secondly, a two-stage feature-selection method is employed, in which the partial autocorrelation function (PACF) is used to select relevant lagged features, while the maximal information coefficient (MIC) is applied to identify key variables from both historical and external data. …”
Get full text
Article -
1339
Donor Parameters and Platelet Yield during Plateletpheresis: A Cross-sectional Prospective Study
Published 2024-12-01“…A relationship between pre-donation donor variables and platelet yield was studied using the Pearson correlation coefficient (r). …”
Get full text
Article -
1340
Drug Release Analysis and Optimization for Drug-Eluting Stents
Published 2013-01-01“…The diffusion coefficients and the coating thickness are selected as design variables. …”
Get full text
Article