Results 41 to 50 of about 1,551,396 (296)

Exact Expressions for Lightning Electromagnetic Fields: Application to the Rusck Field-to-Transmission Line Coupling Model

Atmosphere, 2023
An exact analytical expression for the electric field of the return stroke as excited by a propagating step current source is derived in this paper. This expression could be advantageously used to evaluate the disturbances caused by lightning on overhead
Vernon Cooray, Gerald Cooray, Marcos Rubinstein, Farhad Rachidi   +3 more
doaj   +1 more source

Characteristics of different charge transfer modes in upward flashes inferred from simultaneously measured currents and fields

High Voltage, 2019
The authors present an analysis of different charge transfer modes during upward negative flashes. The analysis includes a total number of 94 pulses that occurred during two upward negative flashes recorded at the Säntis Tower.
Lixia He, Mohammad Azadifar, Quanxin Li, Marcos Rubinstein, Vladimir A. Rakov, Vladimir A. Rakov, Arturo Mediano, Davide Pavanello, Farhad Rachidi   +8 more
doaj   +1 more source

Relationship Between Current Characteristics of Rocket-triggered Lightning During Different Discharge Stages

应用气象学报, 2020
The research on rocket-triggered lightning has made great progress since 1967. Various parts of rocket-triggered lightning are studied, but differences between initial stages of different types of rocket-triggered lightning and the relevance on each part
Wang Jingxuan, Zhang Yang, Chen Zefang, Sun Xiubin, Fan Yanfeng, Zheng Dong, Fan Xiangpeng, Lü Weitao, Zhang Yijun   +8 more
doaj   +1 more source

Correlation between the Channel Discharge Current and Spectrum of a Single-Stroke Lightning Flash to Canton Tower

Remote Sensing, 2023
The intense current of lightning plasma can emit radiation across various parts of the electromagnetic spectrum. Spectral observation is an effective means to understand the radiation characteristics of lightning channels at different wavelengths.
Weiqun Xu, Weitao Lyu, Xuejuan Wang, Lyuwen Chen, Bin Wu, Qi Qi, Ying Ma, Leyan Hua   +7 more
doaj   +1 more source

A Study of Preliminary Breakdown and Return Stroke Processes in High-Intensity Negative Lightning Discharges

Atmosphere, 2016
Using an automated data processing algorithm, we examined electric field records of 5498 negative cloud-to-ground flashes reported by the U.S. National Lightning Detection Network (NLDN) within 50 to 500 km of the Lightning Observatory in Gainesville ...
Yanan Zhu, Vladimir A. Rakov, Manh D. Tran   +2 more
doaj   +1 more source

Effectiveness of Thrombectomy in Stroke According to Baseline Prognostic Factors: Inverse Probability of Treatment Weighting Analysis of a Population-Based Registry [PDF]

, 2021
Stroke; Thrombectomy; PrognosisIctus; Trombectomia; PronòsticIctus; Trombectomía; PronósticoBackground and purpose: In real-world practice, the benefit of mechanical thrombectomy (MT) is uncertain in stroke patients with very favorable or poor prognostic
Rodríguez, Alejandro, Ríos, José, Gomez-Choco, Manuel, Gomis, Meritxell, Terceño, Mikel, Vera, Víctor, Rudilosso, S, Serena, Joaquim, Molina Cateriano, Carlos, Cocho, Dolores   +9 more
core   +1 more source

Karakteristik Preliminary Breakdown Petir Downward Leader Sebelum Sambaran Negatif Pertama

Jurnal Nasional Teknik Elektro, 2014
A hundred lightning flash was observed in Padang city, West Sumatera at January until Mei 2013. The lightning that use to analyze is proceeding with preliminary breakdown pulse (PBP) train and followed by first negative return stroke (RS).  Fast antenna
Zulka Hendri, Ariadi Hazmi
doaj   +3 more sources

Parametric Reconstruction Method for the Long Time-Series Return-Stroke Current of Triggered Lightning Based on the Particle Swarm Optimization Algorithm

IEEE Access, 2020
The lightning research group of the Chinese Academy of Meteorological Sciences has carried out observations and experiments with artificially triggered lightning for more than ten years, and it accumulated thousands of examples of channel base current ...
Xiangpeng Fan, Wen Yao, Yang Zhang, Liangtao Xu, Yijun Zhang, Paul R. Krehbiel, Dong Zheng, Hengyi Liu, Weitao Lyu, Shaodong Chen, Zhengshuai Xie   +10 more
doaj   +1 more source

Latitude and Topographical Dependence of Lightning Return Stroke Peak Current in Natural and Tower-Initiated Negative Ground Flashes

Atmosphere, 2020
Experimental data show that the peak currents of first and subsequent lightning return strokes in negative ground flashes increase with decreasing latitude.
Vernon Cooray, Marcos Rubinstein, Farhad Rachidi   +2 more
doaj   +1 more source

Detection performance analysis of advanced direction time lightning detection system in China

Frontiers in Earth Science
In order to study the detection performance of the Advanced Direction Time Lightning Detection System (ADTD) over mainland China, the relationship between the detection efficiency (DE) and distance for ADTD sensor is analyzed using lightning location ...
Hualiang Zhu, Wenjing Pang, Fengjiao Chen, Fengjiao Chen, Miaomiao Zhang, Jing Wang, Zhichao Wang   +6 more
doaj   +1 more source