Search alternatives:
selection » detection (Expand Search)
coefficient » efficient (Expand Search)
equation » education (Expand Search)
selection » detection (Expand Search)
coefficient » efficient (Expand Search)
equation » education (Expand Search)
-
1
Reaeration Coefficient Empirical Equation Selection for Water Quality Modeling in Surface Waterbodies: An Integrated Numerical-Modeling-Based Technique with Field Case Study
Published 2025-04-01“…Empirical equations were developed by many investigators to determine the reaeration coefficients (Ka) required for predicting dissolved oxygen concentrations (DO) in surface waters, especially rivers, lakes, and reservoirs. …”
Get full text
Article -
2
Quasi-boundary Value Method for Backward Heat Conduction Equation with Variable Coefficients
Published 2023-10-01“… Aiming at the problem of inhomogeneous backward heat conduction equation with time-dependent coefficients in a one- dimensional region , the quasi-boundary value method is used to solve this problem. …”
Get full text
Article -
3
Notes on selection rules of canonical differential equations and relative cohomology
Published 2025-03-01Get full text
Article -
4
Dynamical Behavior and the Classification of Single Traveling Wave Solutions for the Coupled Nonlinear Schrödinger Equations with Variable Coefficients
Published 2021-01-01“…Then, phase portraits of coupled nonlinear Schrödinger equations with variable coefficients are plotted by selecting the suitable parameters. …”
Get full text
Article -
5
Integrable Riesz Fractional-Order Generalized NLS Equation with Variable Coefficients: Inverse Scattering Transform and Analytical Solutions
Published 2025-04-01“…The focus of this article is on extending this progress to nonlocal fractional-order Schrödinger-type equations with variable coefficients. Specifically, based on the analysis of anomalous dispersion relation (ADR), a novel variable-coefficient Riesz fractional-order generalized NLS (vcRfgNLS) equation is derived. …”
Get full text
Article -
6
Efficient Calculation of Propagation Coefficients in Anisotropic Media Through Transfer Matrix Method Based on Eigenvalue Analysis
Published 2025-01-01“…Starting from the anisotropic Maxwell’s equations, the governing equation in matrix form is constructed from constitutive relations of the electromagnetic field. …”
Get full text
Article -
7
Reducing the Friction Coefficient of Heavy-Load Spherical Bearings in Bridges Using Surface Texturing—A Numerical Study
Published 2025-04-01“…In this study, GQZ-60000 unidirectionally movable spherical bearings were the research object, and three different surface textures—spherical cap, ellipsoidal cap, and double spherical cap—were incorporated into a curved PTFE surface to enhance its tribological performance, with the major focus being on reducing the friction coefficient. The Jakobsson–Floberg–Olsson cavitation boundary condition was used to solve the Reynolds equation numerically to obtain the elastohydrodynamic lubrication pressure, and the parametric effect of the three textures on the friction coefficient were analyzed. …”
Get full text
Article -
8
Structural Equation Modeling and Genome-Wide Selection for Multiple Traits to Enhance Arabica Coffee Breeding Programs
Published 2025-07-01“…To address these challenges, we conducted a comprehensive analysis involving confirmatory factor analysis (CFA), Bayesian networks (BN), structural equation modeling (SEM), and genome-wide selection (GWS) using data from 195 arabica coffee plants. …”
Get full text
Article -
9
Structural equation modeling of organizational silence and bullying on employees turnover willingness(The case: selected governmental organizations in Ahvaz)
Published 2016-03-01“…In order to analyze data and test hypotheses Pearson correlation coefficient using SPSS software and structural equation modeling using AMOS software were utilized. …”
Get full text
Article -
10
-
11
Rational approach to cable selection when designing a power supply network
Published 2024-04-01Get full text
Article -
12
Construction and verification of the adequacy of the regression equation of the bending tensile strength from the ratio of composite material components
Published 2022-06-01“…The press was used to measure the bending tensile strength. The regression equation has been also obtained, the response surface has been constructed and the adequacy check of the obtained regression coefficients has been performed.…”
Get full text
Article -
13
-
14
Estimation Approach of Road Friction Coefficient Based on Nonlinear Least Squares
Published 2016-01-01“…First of all, based on the structure of monorail car, two degrees of freedom vehicle lateral motion model was established, then the least squares problem was build according to the dynamics equations , at the same time it put forward a new method of iterative initial value selection. …”
Get full text
Article -
15
ESTIMATION OF SOFTWARE COMPLEXITY OF CALCULATION OF AUTOREGRESSION COEFFICIENTS AT DIGITAL SPECTRAL ANALYSIS
Published 2022-03-01“…The results obtained: it is shown that spectral estimation methods based on Yul-Walker equations, which require the calculation of autoaggression coefficients, combine sufficient resolution and resistance to interference with acceptable implementation complexity. …”
Get full text
Article -
16
Optical Characteristics of GaAs Spherical Quantum Dots Based on Single and Double Quartic Anharmonic Potentials: The Role of Structural Parameters
Published 2025-07-01“…The radial Schrödinger equation was solved using the finite difference method (FDM) to obtain the energy levels and the wavefunctions. …”
Get full text
Article -
17
Seismic Resistance of Reinforced Concrete Building Frames Based on Interval Assessment of the Coefficient of Permissible Damage
Published 2024-11-01“…On average, for the frames under consideration, the coefficient <i>K</i><sub>1</sub> was 0.526, which is 1.5 times greater than the coefficient proposed in modern Russian standards, <i>K</i><sub>1</sub> = 0.35. …”
Get full text
Article -
18
Internal Damper Characteristics of Rotor System with Submerged ER Fluid Journal Bearing
Published 1997-01-01“…Continuous shear strain rate equation about shear stress which simulates Bingham-like fluid shows viscosity variations. …”
Get full text
Article -
19
The SDEMMA model for galactic cosmic ray and its dosimetric application
Published 2025-04-01“…To address this challenge, we present the Space-Dependent Energetic cosmic ray Modulation using MAgnetic spectrometer (SDEMMA) model, a novel framework for modeling galactic cosmic ray (GCR) dynamics in deep-space environments.MethodsThe model employs stochastic differential equations with outer boundary conditions derived from contemporary local interstellar spectrum models. …”
Get full text
Article -
20
Experimental Study on Effect of Operating Temperature on Evaporation Accommodation Coefficient of Working Fluid in Sodium Heat Pipe
Published 2024-10-01“…Different methods for selecting vapor temperatures, in combination with measured outer wall temperature, were employed to derive the experimental values of acc under different work conditions and operating temperatures based on the Hertz-Knudsen-Schrage equation. …”
Get full text
Article