Results 61 to 70 of about 5,888 (214)

A Hybrid Semi‐Inverse Variational and Machine Learning Approach for the Schrödinger Equation

open access: yesAdvanced Physics Research, EarlyView.
A hybrid semi‐inverse variational and machine‐learning framework is presented for solving the Schrödinger equation with complex quantum potentials. Physics‐based variational solutions generate high‐quality training data, enabling Random Forest and Neural Network models to deliver near‐perfect energy predictions.
Khalid Reggab   +5 more
wiley   +1 more source

Safe Operation Area of Energy-Storage-Free Dynamic Voltage Restorer

open access: yesZhongguo dianli, 2022
Energy-storage-free dynamic voltage restorer (DVR) is a common device used to solve voltage sag problems in engineering, but its actual operation is limited by the parameters of application scenarios.
Mingxing ZHU   +3 more
doaj   +1 more source

A Comprehensive Review of Low-Voltage-Ride-Through Methods for Fixed-Speed Wind Power Generators [PDF]

open access: yes, 2016
This paper presents a comprehensive review of various techniques employed to enhance the low voltage ride through (LVRT) capability of the fixed-speed induction generators (FSIGs)-based wind turbines (WTs), which has a non-negligible 20% contribution of ...
Guerrero, Josep M.   +2 more
core   +2 more sources

Clock genes regulate Ca2+ signaling and mitochondrial bioenergetics to inhibit Sjogren's disease

open access: yesArthritis &Rheumatology, Accepted Article.
Objective Although Ca2+ signaling and metabolism have been identified as key determinants for the development of Sjogren's disease (SjD), the intricate connection between them and salivary gland physiology remains poorly understood. Methods Fluorescence‐based Ca2+ imaging, RNA seq, and mitochondrial activity were used to investigate the effects of ...
Viktor R. Drel   +12 more
wiley   +1 more source

Metabolic Reprogramming Analysis of Wheat Response to Low Temperature Stress Under Nitrogen Supply

open access: yesFood and Energy Security, Volume 15, Issue 3, May/June 2026.
Low temperature stress triggers a defense network that maintains growth at the expense of inhibiting photosynthesis and chlorophyll synthesis. Temperature recovery effectively repairs low temperature‐induced damage and enhances stress resistance, while nitrogen supply can further augment these protective processes to strengthen cold tolerance ...
Qiujuan Jiao   +9 more
wiley   +1 more source

A Tutorial on Bayesian Multi‐Study Factor Analysis With Applications in Nutrition and Genomics

open access: yesStatistics in Medicine, Volume 45, Issue 10-12, May 2026.
ABSTRACT High‐dimensional data are crucial in biomedical research. Integrating such data from multiple studies is a critical process that relies on the choice of advanced statistical models, enhancing statistical power, reproducibility, and scientific insight compared to analyzing each study separately.
Mavis Liang   +3 more
wiley   +1 more source

Mitigation of Harmonics and Unbalanced Voltage Disturbance Compensation by MSVPWM Based- DVR in the Distribution Net

open access: yesKurdistan Journal of Applied Research, 2021
Recent power distribution networks comprise abundant sensitive loads, which extremely impact the power quality of source in electrical power networks. Voltage dip, voltage rise, imbalanced voltage, line notching and distortion of harmonics are problems ...
Haider Muhamad Husen
doaj   +1 more source

Dynamic Voltage Restorer for Sag and Swell Issues in Power System [PDF]

open access: yes, 2018
This paper presents the application of dynamic voltage restorers (DVR) on power distribution Systems for mitigation of voltage sags/swells at critical loads. DVR is one of the compensating types of custom power devices.
Lakshmi Kumari, Lakshmi   +1 more
core   +2 more sources

Mitigation of voltage sag/swell using Dynamic voltage restorer (DVR)

open access: yesIOSR Journal of Electrical and Electronics Engineering, 2013
The most noticeable topic for electrical engineering is power quality in recent year. Power quality problem is an occurrence manifested as a nonstandard voltage, current or frequency. Utility distribution networks, sensitive industrial load and critical commercial operation suffer from various types of outages and service interruption can cost ...
openaire   +1 more source

Mechanism and Control Analysis of Synchronous Frequency Resonance in Distributed Power Generation System Connected to Grid

open access: yesEnergy Science &Engineering, Volume 14, Issue 4, Page 2263-2276, April 2026.
Small‐signal modeling reveals that insufficient system damping positions conjugate poles near the imaginary axis, fundamentally explaining the SFR mechanism. A virtual resistance control is consequently proposed to damp the resonance and effectively suppress SFR, which is validated through Hardware‐in‐the‐Loop experiments.
Yujie Gu   +3 more
wiley   +1 more source

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