Results 41 to 50 of about 1,055 (161)

Characteristics of Lightning Strikes on High‐Speed Rail Corridors in Jiangsu Province, China

Meteorological Applications, Volume 32, Issue 5, September/October 2025.
Based on the terrain, lightning detection data, and catenary engineering parameters along 12 HSR corridors in Jiangsu Province, this study provides detailed analyses of the lightning characteristics, the cumulative probability distribution (CPD) of lightning current amplitudes, and the lightning strike characteristics on the catenary in these areas ...
Yan Liu, Zheng Li, Xiao Jing, Yingkun Fang, Wenhao Hou, Weitao Lyu, Wen Yao, Shoujun Chen   +7 more
wiley   +1 more source

Tempus: An Evolutionary Mutation Testing System on Event‐Based Systems With Profile‐Based Individual Generation

Software Testing, Verification and Reliability, Volume 35, Issue 5, August 2025.
Tempus is a testing system that enhances Evolutionary Mutation Testing (EMT) by using ProfileBased individual generation (PBig). PBig generates new individuals based on previous knowledge from other programs about which operators are more likely to produce strong mutants.
Lorena Gutiérrez‐Madroñal, Antonio García‐Domínguez, Inmaculada Medina‐Bulo   +2 more
wiley   +1 more source

Recent Advances in Machine Learning‐Assisted Multiscale Design of Energy Materials

Advanced Energy Materials, Volume 15, Issue 9, March 4, 2025.
This review highlights recent advances in machine learning (ML)‐assisted multiscale design of energy materials, currently achievable through generative structure prediction, the discovery of complex atomic structure–property relationships, accelerated prediction of diverse material and interface properties, deeper insights into microstructure effects ...
Bohayra Mortazavi
wiley   +1 more source

High‐Impedance Fault Detection in Distribution Networks Based on Support Vector Machine and Wavelet Transform Approach (Case Study: Markazi Province of Iran)

Energy Science &Engineering, Volume 13, Issue 3, Page 1171-1183, March 2025.
High‐impedance fault (HIF) and load variation signals are sampled using EMTP‐RV and exported to MATLAB. DWT is applied to extract features, which are then input into the SVM algorithm to detect HIFs and distinguish them from other network phenomena. ABSTRACT High impedance faults (HIFs) can lead to crucial damage to the utility grid, such as the risk ...
Mohammad Sadegh Attar, Mohammad Reza Miveh   +1 more
wiley   +1 more source

Diagnosing Power Transformer Winding Faults Using a Feature Fusion Method for Multidimensional Oscillating Wave Signals

IET Electric Power Applications, Volume 19, Issue 1, January/December 2025.
This paper proposes a feature fusion method for oscillating wave signals based on multidimensional transformation. For warpage and interturn faults in transformer windings, the fault information is extracted using the oscillating wave method. By fusing optimal multifeatures from different dimensions in the time–frequency domain, this approach enables ...
Zhenyu Wu, Xiang Wu, Rui Sun, Wenping Cao, Cungang Hu   +4 more
wiley   +1 more source

基于FDTD和EMTP的特高压大跨越线路雷击暂态过程对比分析

Gaoya dianqi, 2019
大跨越线路的杆塔高、档距长,反击闪络风险高,准确分析其雷击暂态过程,对于保证特高压线路的安全运行具有重要意义。文中针对淮南—上海特高压工程南通—苏州段的大跨越输电线路,分别建立了该线路雷击暂态过程的FDTD和EMTP模型,得到了大跨越线路的杆塔横担与塔顶电压、导线电压和绝缘子串过电压,并开展了对比分析,结果表明:采用Hara提出的杆塔多波阻抗模型,EMTP计算得到的横担和塔顶电压远大于FDTD计算结果;若不考虑感应分量,EMTP计算得到的导线电压大于FDTD计算结果 ...
谢文炳, 赵贤根, 肖佩, 傅智为, 吴文斌, 何俊佳   +5 more
doaj  

Development of a Leader-End Reclosing Algorithm Considering Turbine-Generator Shaft Torque

Energies, 2017
High-speed auto-reclosing is used in power system protection schemes to ensure the stability and reliability of the transmission system; leader-follower auto-reclosing is one scheme type that is widely used.
Gyu-Jung Cho, Ji-Kyung Park, Seung-Hyun Sohn, Se-Jin Chung, Gi-Hyeon Gwon, Yun-Sik Oh, Chul-Hwan Kim   +6 more
doaj   +1 more source

Design and evaluation of multidimensional CNN simulation framework against synchrophasor data spoofing attacks and correction for cyber‐resiliency in power system

IET Generation, Transmission &Distribution, Volume 19, Issue 1, January/December 2025.
The technique involves source authentication to detect anomalies in phasor measurement unit (PMU) data by extracting spatial fingerprint information. The extracted information is then used as inputs for a multi‐dimensional convolutional neural network simulation framework.
Robert Nobili Britto Thomas, Venkatesh Thirugnanasambandam, Manikandan Senthur, Manusri Rekshana   +3 more
wiley   +1 more source

Liderazgo de Nivel Intermedio en Red Para la Justicia Educativa en la Formación Técnico-Profesional

International Journal of Educational Leadership and Management
Este estudio cualitativo explora cómo las redes gestionadas por los Servicios Locales de Educación Pública (SLEP) en Chile, que son parte de la reforma Nueva Educación Pública (NEP), contribuyen al desarrollo de capacidades directivas para la justicia ...
Jennifer Ly Obregón-Reyes, Claudia Andrea Godoy-Orellana   +1 more
doaj   +1 more source

Dangerous Voltages due to Direct Lightning Strike into the Communication Tower

Journal of Communications Software and Systems, 2007
This paper presents a novel technique for computing dangerous voltages due to direct lightning strike into the communication tower and associated earthing system, which is based on the use of the well-known ATP-EMTP software package.
Slavko Vujević, Petar Sarajčev
doaj