Results 11 to 20 of about 4,070 (175)

Comparing the Wave Characteristics of Breakdown Pulses of the Lightning Waveforms in the Himalayan Region

open access: yesThe Scientific World Journal, 2021
We have analyzed the breakdown pulse train with or without the main event in this paper. Among the selected 81 flashes, 36 flashes are starting positively, and 45 are starting negatively.
Pitri Bhakta Adhikari   +1 more
doaj   +1 more source

Temporal analysis on pulse train of lightning discharge observed in Malacca, Malaysia

open access: yesEnergy Reports, 2023
A few significant studies discovered that a pulse train tends to initiate subsequent return stroke in the same way that a preliminary breakdown pulse activates the first return stroke.
N. Asrina Ramlee   +3 more
doaj   +1 more source

Pulse induced failures in bi-axially oriented polypropylene capacitors: Experimental investigation

open access: yesAin Shams Engineering Journal, 2023
An experimental study of the absorption of high energy pulses in bi-axially oriented polypropylene (BOPP) capacitors is reported in the paper. The pulse handling performance test is used to identify the material or mechanical problem characteristics ...
Juraj Kurimský   +2 more
doaj   +1 more source

Effects of Pulse Duration in Laser-induced Breakdown Spectroscopy

open access: yesU.Porto Journal of Engineering, 2022
Laser-induced breakdown spectroscopy (LIBS) is a technique that leverages atomic emission towards element identification and quantification. While the potential of the technology is vast, it still struggles with obstacles such as the variability of the ...
Miguel Ferreira   +4 more
doaj   +1 more source

A 3D Interferometer-Type Lightning Mapping Array for Observation of Winter Lightning in Japan

open access: yesRemote Sensing, 2023
We have developed and deployed a 3D Interferometer-type Lightning Mapping Array (InLMA) for observing winter lightning in Japan. InLMA consists of three broadband interferometers installed at three stations with a distance from 3 to 5 km.
Junchen Yang   +5 more
doaj   +1 more source

Electric Field Signatures in Wideband, 3 MHz and 30 MHz of Negative Ground Flashes Pertinent to Swedish Thunderstorms

open access: yesAtmosphere, 2015
In this study, the electric field signatures of negative ground flashes pertinent to the Swedish thunderstorms were recorded simultaneously during the summer of 2014 using wide (up to 100 MHz) and narrow (at 3 MHz and 30 MHz as central frequencies ...
Mohd Muzafar Ismail   +5 more
doaj   +1 more source

Characteristics of lightning-generated electric fields measured in the Bogotá Savanna, Colombia

open access: yesRevista UIS Ingenierías, 2017
In this paper, important features of electric fields produced by cloud-to-ground (CG) lightning flashes in the central region of Colombia are analyzed. This study is the first conducted in the country where more than 100 CG lightning flash signatures are
Herbert Rojas   +2 more
doaj   +1 more source

Nanoparticles Enhanced Laser-Induced Breakdown Spectroscopy for Characterisation and Discrimination of Gemstones [PDF]

open access: yesEPJ Web of Conferences
Laser-induced breakdown spectroscopy (LIBS) is an excellent technique for rapid on-site investigations that attracts interest from diverse research areas. Gemmology is no exception.
Al-Juboori Haider   +3 more
doaj   +1 more source

Preliminary breakdown of intracloud lightning: Initiation altitude, propagation speed, pulse train characteristics, and step length estimation [PDF]

open access: yesJournal of Geophysical Research: Atmospheres, 2015
AbstractUsing a low‐frequency lightning location system comprising 11 sites, we located preliminary breakdown (PB) processes in 662 intracloud (IC) lightning flashes during the summer of 2013 in Osaka area of Japan. On the basis of three‐dimensional location results, we studied initiation altitude and upward propagation speed of PB processes.
Ting Wu   +5 more
openaire   +1 more source

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