Results 41 to 50 of about 380,531 (310)

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

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

Lightning radiation field due to channel tortuosity and branching [PDF]

, 1997
The effect of lightning channel branching on the temporal waveform of the radiated fields of the return stroke is modeled.
Canavero, Flavio, Vecchi, Giuseppe, Zich, R.E.   +2 more
core   +1 more source

Considering on the ground reflection effect on the electromagnetic fields due to lightning channel [PDF]

, 2013
Lightning electromagnetic fields are important issues for the evaluation of lightning induced overvoltage on power lines and for setting the appropriate protection level for power networks.
Ab Kadir, Mohd Zainal Abidin, Hajikhani, Maryam, Izadi, Mahdi   +2 more
core   +1 more source

Considering on return stroke current wave shape for tall objective cases [PDF]

, 2010
The return stroke current along the lightning channel for striking of the lightning to tall objective case is different from ground surface case with many factors affect this phenomenon.
Ab Kadir, Mohd Zainal Abidin, Izadi, Mahdi   +1 more
core   +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

Functional Connectivity Linked to Cognitive Recovery After Minor Stroke

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective Patients with minor stroke exhibit slowed processing speed and generalized alterations in functional connectivity involving frontoparietal cortex (FPC). The pattern of connectivity evolves over time. In this study, we examine the relationship of functional connectivity patterns to cognitive performance, to determine ...
Vrishab Commuri, Isabella Dallasta, Ciaran Stone, Sophia Girgenti, Neda Gould, Rafael H. Llinas, Jonathan Z. Simon, Elisabeth Breese Marsh   +7 more
wiley   +1 more source

Need for structured healthcare organization and support for return to work after stroke in Sweden: Experiences of stroke survivors

Journal of Rehabilitation Medicine, 2019
Objective: To explore stroke survivors’ experiences of healthcare-related facilitators and barriers concerning return to work after stroke. Design: A qualitative study.
Gunvor Gard, Hélène Pessah-Rasmussen, Christina Brogårdh, Åsa Nilsson, Ingrid Lindgren   +4 more
doaj   +1 more source

Predictors of return to work among stroke survivors in south-west Nigeria

Hong Kong Journal of Occupational Therapy, 2021
Introduction Stroke is acknowledged globally and among Nigerian rehabilitation researchers as a public health problem that leaves half of its survivors with significant neurological deficits and inability to re-establish pre-existing roles. Consequent to
Olumide Ayoola Olaoye, Shaheed Moghammad Soeker, Rhoda Anthea   +2 more
doaj   +1 more source