Results 131 to 140 of about 18,553,187 (294)

Study on the Power‐Frequency Arc Extinction Characteristics of Semi‐Closed Short‐Gap Device

High Voltage, EarlyView.
ABSTRACT Multi‐chamber arc‐extinguishing devices have a simple structure and excellent arc‐extinguishing performance; thus, they have attracted considerable attention as lightning protection devices. However, the structural parameters of different models of the aforementioned devices vary, leading to inconsistent protection levels; therefore, the arc ...
Yeqiang Deng, Caiwei Pan, Jintian Chen, Yu Wang, Lei Lan   +4 more
wiley   +1 more source

PowerGPT‐R1: Vision‐Language Reinforcement Fine‐Tuning With Verifiable Reward for Power Inspection

High Voltage, EarlyView.
ABSTRACT Vision‐driven intelligent power inspection systems have long faced the challenge of scarce high‐quality datasets in specialised domains, leading to limited performance of traditional deep learning methods (e.g., Faster‐RCNN) in few‐shot learning scenarios. Recent breakthroughs in language models, particularly the open‐source DeepSeek‐R1 model,
Yangyang Zhong, Pengxin Luo, Yunfeng Yan, Jun Feng, Shixiang Tang, Weizhen He, Yiheng Deng, Yi Chen, Yuhao Zhou, Qi Li, Xianbo Wang, Fushuan Wen, Donglian Qi   +12 more
wiley   +1 more source

Research on Embodied Intelligence Technology for Electric Power Equipment Based on Large‐Scale Pre‐Trained Models

High Voltage, EarlyView.
ABSTRACT With the development of electric power artificial intelligence (AI) technology, many complicated challenges emerged during application. Traditional AI algorithms work well in specialised tasks such as detection and classification. However, they are unlikely to solve general problems.
Yuanpeng Tan, Rui Song, Ankai Zhang, Wenhao Mo, Wenjin Ji   +4 more
wiley   +1 more source

A quantitative risk assessment model for lightning-induced failures in natural gas automated metering systems

Petroleum
As one of the most probable natural hazards leading to technological disasters, lightning can easily damage analytical instruments in oil and gas stations, resulting in data loss and operational anomalies.
Xia Wu, Jiujiang Cai, Hanqing Liu, Wenlong Jia, Changjun Li, Mengjun Teng   +5 more
doaj   +1 more source

U.S. LIGHTNING STRIKE DEATHS [PDF]

The risk of being struck by lightning is low, but the consequences of being struck by lightning ARE SERIOUS.To learn more about lightning, visit: www.cdc.gov/disasters/lightning\u2022 444- From 2006 through 2021, 444 people in the 444 United States died ...

core  

A Review and Prospect of Appearance Defect Detection Methods for High Voltage Equipment Based on Vision Large Models

High Voltage, EarlyView.
ABSTRACT High voltage equipment, as a core component of power systems, plays an indispensable role in ensuring the reliability of power supply through its safe and stable operation. Traditional visual defect detection for high voltage equipment, however, often relies on manual inspection and experience‐based judgement, which struggles to meet the ...
Zhenbing Zhao, Shuo Feng, Teng Ma, Chenkang Tang, Wenlong Liao, Yixuan Huang, Yongjie Zhai, Wenqing Zhao   +7 more
wiley   +1 more source

Conductivity Analysis and Thermoelectric Behaviour of Larch Standing Trees Under Lightning Currents: Role of Moisture Distribution and Carrier Motion

High Voltage, EarlyView.
ABSTRACT The direct effects of lightning strikes on forest combustibles form the foundation for predicting lightning‐induced forest fires. Accurate assessment of lightning impact is hindered by limited knowledge of the conduction characteristics of standing larch trees.
Jinru Sun, Xiaomeng Liu, Shu Li, Duanzhou Peng, Xueling Yao, Xiaodong Liu   +5 more
wiley   +1 more source

Inferring the Correlation Between Lightning Events and Voltage Dips in Distribution Networks

, 2007
To appropriately infer the correlation between lightning events and flashovers/voltage dips on real distribution networks, data coming from lightning location systems are certainly needed, but need to complemented on the one hand by data coming from ...
NUCCI, CARLO ALBERTO
core  

Lightning Location Systems and Interstroke Intervals: Effects of Imperfect Detection Efficiency

Lightning location systems (LLSs) are often used to obtain parameters of lightning flashes. However, the imperfect detection efficiency (DE) of these systems affects the accuracy of the results.
Rachidi, Farhad, Stojilovic, Mirjana, Azadifar, Mohammad, Rubinstein, Marcos   +3 more
core   +1 more source

The Political Ecology of the ‘New’ Feminism in Late‐1990s Britain

Gender &History, EarlyView.
ABSTRACT The 1990s were a vexed time for feminists in Britain. Cultural commentators declared that feminism's key battles had been won, and that given women's ascendency across various political and cultural barometers of success, the country was entering a newly ‘postfeminist’ era.
Sarah Crook
wiley   +1 more source