-
6001
Optimal compensation method for centrifugal impeller considering aerodynamic performance and dimensional accuracy
Published 2025-02-01“…This study proposes a novel optimal compensation method for centrifugal impellers that comprehensively considers the aerodynamic performance and dimensional accuracy. First, a nonlinear mapping relationship between the key geometric parameters of the blade and the aerodynamic performance was established. …”
Get full text
Article -
6002
Analyzing diverse soliton wave profiles and bifurcation analysis of the (3 + 1)-dimensional mKdV–ZK model via two analytical schemes
Published 2025-01-01“…The (3 + 1)-dimensional modified Korteweg–deVries–Zakharov–Kuznetsov model is widely used in the study of nonlinear wave phenomena. These forms of wave phenomena are more useful in science and engineering. …”
Get full text
Article -
6003
Comparative Study of Maximum Power Point Tracking Techniques for Photovoltaic Systems
Published 2015-01-01“…., irradiance and temperature), since the MPP is nonlinear with the environment status. PSIM software is used to validate the assumptions, while relevant results are discussed in detail.…”
Get full text
Article -
6004
Prediction correction modeling of water-conducting fracture zones height due to repeated mining in close distance coal seams
Published 2024-12-01“…We developed a prediction model based on multiple regression analysis that incorporates the weighted influences of these factors, further refined into a multivariate nonlinear regression model for greater accuracy. Compared against a multivariate linear regression model, empirical formulas, and measured results, our model demonstrated higher accuracy, stability in both absolute and relative errors, and practical applicability. …”
Get full text
Article -
6005
A Multi-Resonant based reference feedforward adaptive voltage control for Grid-Forming inverter in island mode to compensate system uncertain and harmonic distortions
Published 2025-03-01“…Compared with classical PI/PR methods or other adaptive ones, this newly proposed adaptive control method synthesizes high robustness, excellent voltage regulation performance, and low total harmonic distortion under nonlinear loads in island mode. The experiments verify its effectiveness on a GFM inverter using a TI TMS320F28335 DSP.…”
Get full text
Article -
6006
Ground Deformation Characteristics Induced by Mechanized Shield Twin Tunnelling along Curved Alignments
Published 2021-01-01“…This paper investigates the ground deformation characteristics induced by mechanized shield twin tunnelling along curved alignments by adopting the nonlinear three-dimensional (3D) finite element method (FEM). …”
Get full text
Article -
6007
A Novel Version of HPM Coupled with the PSEM Method for Solving the Blasius Problem
Published 2021-01-01“…This work studies the nonlinear differential equation that models the Blasius problem (BP) which is of great importance in fluid dynamics. …”
Get full text
Article -
6008
A Simplified Parametric Study on Occupant Comfort Conditions in Base Isolated Buildings under Wind Loading
Published 2017-01-01“…The procedure is based on (i) the nonlinear dynamic analysis of the structure modeled as a single-degree-of-freedom oscillator with hysteretic base isolators, (ii) the digital generation of time histories of turbulent wind velocity, and (iii) comfort evaluations based on international standards. …”
Get full text
Article -
6009
Thermal characteristics of hybrid Nanofluid (Cu-Al2O3) flow through Darcy porous medium with chemical effects via numerical successive over relaxation technique
Published 2025-01-01“…Then the successive over relaxation technique is utilized to numerically solve the nonlinear equations. The findings are summarized in a graphical and tabular format. …”
Get full text
Article -
6010
Seismic Behavior and Finite Element Analysis of Reinforced Concrete Short Columns Impacted by Oblique Earthquakes
Published 2020-01-01“…Results suggest that the OpenSees finite element program can sufficiently simulate the nonlinear response of the specimen. Oblique loading led to the increase of damage to the specimens and the deterioration of stiffness of the specimens, which was especially seen with the increase of the axial compression ratio. …”
Get full text
Article -
6011
Design and Simulation of Power Quality Improvement System for Low Voltage Distribution Networks in Uganda.
Published 2024“…The detailed universal active power filter shall be designed and simulated for balanced nonlinear loads using MATLAB/Simulink. The simulation results are intended to indicate that the proposed filter can minimise the harmonic distortion to a level below that deployed by the institute of electrical and electronics engineers (IEEE) standard, which say that THD in a network should not exceed 5%.This project focused on enhancing power quality in low voltage distribution networks at the point of common coupling (PPC) through the design and simulation of a universal active filter system. …”
Get full text
Thesis -
6012
TIE‐GCM ROPE ‐ Dimensionality Reduction: Part I
Published 2025-01-01“…This work focuses on the dimensionality reduction step of the ROPE development process and addresses three limitations of the proof‐of‐concept: (a) extending the altitude upper boundary from 450 km to nearly 1000 km, (b) employing deep learning for nonlinear dimensionality reduction over principal component analysis (PCA) for improved performance during storm periods, and (c) maintaining the spatial resolution of the physical TIE‐GCM model, without down‐sampling, to preserve the spatial scales and variations. …”
Get full text
Article -
6013
A CEEMDAN-Based Entropy Approach Measuring Multiscale Information Flow between Macroeconomic Conditions and Stock Returns of BRICS
Published 2022-01-01“…We model a mixture of asymmetric and nonlinear bidirectional and unidirectional causality between four macroeconomic variables (exchange rate, GDP, global economic policy uncertainty, and relative CPI) and stock returns of BRICS economies in the frequency-domain using the information flow theory. …”
Get full text
Article -
6014
Improved Harmony Search Algorithm to Compute the Underfrequency Load Shedding Parameters
Published 2022-01-01“…Defining settings of a conventional UFLS scheme is a very complex problem due to the nonlinear nature of the frequency response, and the size of the problem is vast because of the number of UF-relays spread on the power system. …”
Get full text
Article -
6015
RESEARCH ON DYNAMIC PROPERTY FOR CASTING CRANE IN THE LOAD-LIFTING PROCESS BASE ON THERMO-ELASTIC COUPLING
Published 2018-01-01“…The temperature field of the bridge presents nonlinear variation with the iron melt ladle lifting,that the temperature field of the bridge changes more significantly while the lifting speed faster. …”
Get full text
Article -
6016
Machine learning techniques for estimating high–temperature mechanical behavior of high strength steels
Published 2025-03-01“…The proposed framework was validated against experimental data, demonstrating strong agreement and confirming its effectiveness in capturing complex nonlinear material behavior. This study provides a significant advancement over traditional empirical methods by offering a data-driven approach for predicting HSS performance under elevated temperatures, facilitating the design of safer and more efficient structural components in high-temperature applications.…”
Get full text
Article -
6017
Micropolar Couple Stress Nanofluid Flow by Non-Fourier’s-Law Heat Flux Model past a Stretching Sheet
Published 2021-01-01“…In this investigation, thermal radiation effect on MHD nonlinear convective micropolar couple stress nanofluid flow by non-Fourier’s-law heat flux model past a stretching sheet with the effects of diffusion-thermo, thermal-diffusion, and first-order chemical reaction rate is reported. …”
Get full text
Article -
6018
Asymmetric Effects of Trade Openness and National Income on Government Size in BRICS Countries: New Evidence for Wagner’s Law
Published 2024-12-01“…This study investigates the validity of Wagner’s law and the Compensation Hypothesis in the context of BRICS. Using a panel nonlinear autoregressive distributed lag model on annual panel data from 1999 to 2023, our findings confirm Wagner’s law, showing a positive relationship between economic growth and government size. …”
Get full text
Article -
6019
Analytic Solutions of 2D Cubic Quintic Complex Ginzburg-Landau Equation
Published 2023-01-01“…It is applied to reduce the two-dimensional complex cubic-quintic Ginzburg-Landau equation to the quintic nonlinear ordinary differential equation, easily solvable. …”
Get full text
Article -
6020
Dynamic Response Analysis of Planar Multilink Mechanism considering Wear in Clearances
Published 2019-01-01“…The dynamic responses of mechanism considering two nonregular revolute clearances caused by wear are studied in depth. The nonlinear characteristics of the mechanism after wear are studied by the phase diagram and Poincaré map. …”
Get full text
Article