Characterization of initial current pulses in negative rocket-triggered lightning with sensitive magnetic sensor

Radio Science ◽  
2016 ◽  
Vol 51 (9) ◽  
pp. 1432-1444 ◽  
Author(s):  
Gaopeng Lu ◽  
Hongbo Zhang ◽  
Rubin Jiang ◽  
Yanfeng Fan ◽  
Xiushu Qie ◽  
...  
Keyword(s):  
Magnetic Sensor ◽  
Initial Current ◽  
Current Pulses ◽  
Triggered Lightning

Characterization of electric field waveforms from triggered lightning at 58 m

2021 ◽  
Vol 109 ◽  
pp. 103537
Author(s):  
Li Cai ◽  
Qiang Hu ◽  
Jianguo Wang ◽  
Xin Zou ◽  
Quanxin Li ◽  
...  
Keyword(s):  
Electric Field ◽  
Triggered Lightning

scholarly journals Characterization of the initial stage of negative rocket-triggered lightning

1999 ◽  
Vol 104 (D4) ◽  
pp. 4213-4222 ◽  
Author(s):  
D. Wang ◽  
V. A. Rakov ◽  
M. A. Uman ◽  
M. I. Fernandez ◽  
K. J. Rambo ◽  
...  
Keyword(s):  
Initial Stage ◽  
Triggered Lightning

Characteristics of current pulses in rocket-triggered lightning

2014 ◽  
Vol 135-136 ◽  
pp. 322-329 ◽  
Author(s):  
Xiushu Qie ◽  
Rubin Jiang ◽  
Jing Yang
Keyword(s):  
Current Pulses ◽  
Triggered Lightning

Measurement of continuing charge transfer in rocket-triggered lightning with low-frequency magnetic sensor at close range

2018 ◽  
Vol 175 ◽  
pp. 76-86 ◽  
Author(s):  
Gaopeng Lu ◽  
Yanfeng Fan ◽  
Hongbo Zhang ◽  
Rubin Jiang ◽  
Mingyuan Liu ◽  
...  
Keyword(s):  
Charge Transfer ◽  
Low Frequency ◽  
Magnetic Sensor ◽  
Triggered Lightning ◽  
Close Range

scholarly journals Pulse Characterization of Optically Triggered SiC Thyristors

2012 ◽  
Vol 717-720 ◽  
pp. 1179-1182 ◽  
Author(s):  
Nicolas Dheilly ◽  
Gontran Pâques ◽  
Sigo Scharnholz ◽  
Dominique Planson
Keyword(s):  
Pulse Width ◽  
Short Pulse ◽  
Fabrication Process ◽  
Device Structure ◽  
Current Pulses ◽  
Short Pulse Width ◽  
Current Densities ◽  
Long Pulse ◽  
Pulse Characterization

This paper deals with the pulse capabilities of 4H-SiC optically triggered thyristors. The device structure and the fabrication process are presented. The results of pulse characterizations are shown. Two types of current pulses were used, a short (pulse width of 10 µs) and a long (pulse width of 650 µs). Peak current densities of 17 kA.cm-2 and 4 kA.cm-2 were attained with short and long pulses respectively. The failures and degradation caused by these experiments are also shown in this paper.

NiMo Nanoparticles Electrodeposited by Pulsed Current and Their Catalytic Properties for Hydrogen Production

2013 ◽  
Vol 16 (3) ◽  
pp. 177-182 ◽  
Author(s):  
Savidra Lucatero ◽  
Gabriel Tamayo ◽  
Diego Crespo ◽  
Ernesto Mariño ◽  
Marcelo Videa
Keyword(s):  
Pulse Current ◽  
Catalytic Properties ◽  
Unit Area ◽  
Catalytic Performance ◽  
Pulsed Current ◽  
Pulse Time ◽  
Current Pulses ◽  
Mo Content ◽  
High Instability

The electrocatalytic activity of NiMo nanoparticles (NPs) fabricated by means of current pulses from a binary electrolyte was characterized using cyclic voltammetry. The pulse current density, jpulse, was varied in the range of 7 to 430 mA/cm2, whereas the pulse time, tpulse, was kept constant at two seconds. Mean NP size, Dmean, ranged within 27 and 38 nm at jpulse values between 15 and 140 mA/cm2; with Dmean increasing as jpulse was higher. NP dispersion (i. e., number of objects per unit area of substrate) was lower when jpulse values were also low (15 and 35 mA/cm2), which showed consistency with a promoted nuclei formation and prolonged NP growth at higher jpulse values. An improved catalytic performance for hydrogen evolution was determined upon increasing jpulse in the range of 7 to 70 mA/cm2 and remaining practically unvaried at higher jpulse values. The electrosynthesis of two distinct catalytic materials was indicated by electrochemical characterization of deposits; the material with greatest catalytic activity also showed high instability, causing a dramatic decay (~80%) in the activity after two consecutive cycles of operation. Ni and Mo content in electrodeposits were both sensitive to variations in jpulse.

Characteristics of current pulses in rocket triggered lightning

2018 ◽  
Author(s):  
Zilong Ma ◽  
Mingyuan Liu ◽  
Rubin Jiang ◽  
Zhuling Sun ◽  
Hongbo Zhang ◽  
...  
Keyword(s):  
Current Pulses ◽  
Triggered Lightning
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