Results 51 to 60 of about 465 (149)

Rare Lightning and Convection Characteristics During Two Successive Tornadoes in Southern China

High Voltage, EarlyView.
ABSTRACT Systematic investigations into lightning characteristics of tornado storms in China remain scarce. This study comprehensively analyses rare lightning behaviour and overshooting top characteristics for two successive tornadoes during a long‐lived supercell in southern China on 27 April 2024.
Fengquan Li, Jiangling Zhi, Yu Wang, Hantao Tao, Zhaoming Li, Shanqiang Gu, Zhe Li, Zeyu Zhang, Lei Zhang, Guoying Tang   +9 more
wiley   +1 more source

Refined Safety Distance Measurement of Heavy Construction Machinery Near Electricity Operation Based on Feature‐Homogenised Spatial Target Analysis

High Voltage, EarlyView.
ABSTRACT Heavy construction machinery is essential for power infrastructure construction and maintenance, making safety distance measurement crucial for ensuring operational safety. Existing methods, which rely on target space mapping, face challenges such as error accumulation and limited accuracy.
Fuqi Ma, Mingyang Qi, Rong Jia, Bo Wang, Leixiong Wang   +4 more
wiley   +1 more source

On the initiation of lightning in thunderclouds

Scientific Reports, 2017
The relationship of lightning and elementary particle fluxes in the thunderclouds is not fully understood to date. Using the particle beams (the so-called Thunderstorm Ground Enhancements – TGEs) as a probe we investigate the characteristics of the ...
Ashot Chilingarian, Suren Chilingaryan, Tigran Karapetyan, Lev Kozliner, Yeghia Khanikyants, Gagik Hovsepyan, David Pokhsraryan, Suren Soghomonyan   +7 more
doaj   +1 more source

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

Affected Territory and Objects of the North Caucasus by Lightning

Наука. Инновации. Технологии, 2022
Introduction: a thunderstorm is a complex atmospheric phenomenon. The main signs of this phenomenon are multiple electrical discharges between differently charged regions of the cloud - cloud discharges, different clouds-inter-cloud discharges, or ...
A. A. Adjieva, Z. M. Kerefova, R. A. Gyatov   +2 more
doaj  

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

Analysis of the Charge Structure Accompanied by Hail During the Development Stage of Thunderstorm on the Qinghai–Tibet Plateau

Atmosphere
The charge structure and lightning activities during the development stage of a thunderstorm with a hail-falling process in Datong County of Qinghai Province on 16 August 2014 were studied by using a multi-station observation network composed of a very ...
Yajun Li, Xiangpeng Fan, Yuxiang Zhao
doaj   +1 more source

Advances of Observation and Study on Tall-object Lightning in Guangzhou over the Last Decade

应用气象学报, 2020
Comparing to the ground or low-object, tall-object is more likely to reach the threshold for the initiation of leader on its top due to the distortion and enhancement of electric field, therefore tall-object is not only easier to get struck by downward ...
Lü Weitao, Chen Lüwen, Ma Ying, Qi Qi, Wu Bin, Jiang Ruijiao   +5 more
doaj   +1 more source

Can Enterprises Invest Efficiently in Smart Cities?

Accounting &Finance, EarlyView.
ABSTRACT The rapid expansion of the digital economy has accelerated smart city (SC) development in China. Using a time‐varying difference‐in‐differences approach, we examine the impact of SC policies on corporate investment efficiency. We document that SC construction significantly enhances investment efficiency, with robust results across multiple ...
Jingmiao Li, Dehong Liu, Yuan George Shan, Xinyue Zhang   +3 more
wiley   +1 more source

Monthly distribution of cloud‐to‐ground lightning flashes as observed by lightning location systems [PDF]

Geophysical Research Letters, 2006
This paper presents a comparison among the mean monthly distributions of the number of cloud‐to‐ground (CG) flashes, the percentage of positive CG flashes and the peak current of negative and positive CG flashes obtained in Brazil for the period from 1999 to 2004, with the same distributions observed by similar networks for long time periods in other ...
O. Pinto, K. P. Naccarato, I. R. C. A. Pinto, W. A. Fernandes, O. Pinto Neto   +4 more
openaire   +1 more source