Results 81 to 90 of about 63,591 (249)

The Reactivation of Decayed Positive Leader With Sudden Channel Elongation in Laboratory Long Spark

Geophysical Research Letters
Positive lightning leaders present reactivation behaviors during their propagation processes. The mechanism underlying the reactivation of positive leaders is yet unclear.
Dianhang Li, Weijiang Chen, Shengxin Huang, Bo Qi, Nianwen Xiang, Zhong Fu, Yufei Fu, Zimeng Zheng   +7 more
doaj   +1 more source

Study on Spatial-Temporal Distribution Characteristics of the Discharge Process in a 1 m Rod-Plate Gap Under Different Polarity Lightning Impulses

IEEE Access, 2019
The observation of the air gap discharge process is the basis of revealing the physical mechanism of gas discharge and establishing the accurate numerical simulation model.
Yaqi Zhang, Yongxia Han, Wenbo Zheng, Jie Yang, Lu Qu, Gang Liu, Xiangen Zhao, Licheng Li   +7 more
doaj   +1 more source

Analysis of electrical transients created by lightning [PDF]

A series of flight tests was conducted using a specially-instrumented NASA Learjet to study the electrical transients created on an aircraft by nearby lightning.
Nanevicz, J. E., Vance, E. F.
core   +1 more source

Enhanced earthing performance by improved design and grounding material properties [PDF]

, 2018
An enhance ground electrode (E.G.E.) is a portable grounding system that acts as an additional grounding system, designed for zero potential reference points. The E.G.E could eliminate the increasing of resistance in grounding conductor as it placed next
Mohd Hasni, Nur Alyaa
core  

Correlative Chemical Imaging to Reveal the Nature of Different Commercial Graphene Materials

Small Methods, EarlyView.
Commercial graphene‐based materials from different sources and of varying complexities were investigated correlatively using commonly employed imaging techniques, including SEM, AFM, ToF‐SIMS, AES, and EDS. ToF‐SIMS combined with SEM was identified as the most effective combination for simultaneously resolving the complex morphology and chemical ...
Robert Schusterbauer, Paul Mrkwitschka, Mario Sahre, Elena Corrao, Amaia Zurutuza, Alexander Doolin, Francesco Pellegrino, Jörg Radnik, Ievgen S. Donskyi, Vasile‐Dan Hodoroaba   +9 more
wiley   +1 more source

A pulse generator with inductive energy storage for measuring the grounding resistance of transmission line towers

Vestnik MGTU, 2018
The pulse method may be used to measure the footing resistance of transmission towers with overhead grounding wires. Measuring systems that obtain the time dependent transient impedance may be used to measure the low-frequency resistance of transmission ...
Kolobov V. V. , Kolobov V. V. , Selivanov V. N.   +2 more
doaj   +1 more source

Electrification in winter storms and the analysis of thunderstorm overflight [PDF]

The emergence of 24 hr operational lightning detection networks has led to the finding that positive lightning strokes, although still much fewer in number than the normal negative strokes, are present in summer and winter storms.
Brook, Marx
core   +1 more source

Investigating Spatial‐Temporal Optical Emission Spectroscopy of Unstable Positive Leaders in Long Sparks Under Atmospheric Pressure

High Voltage, EarlyView.
ABSTRACT This study explores exciting state species and reaction pathways in positive leaders to better understand the breakdown mechanisms of long air gap discharges and natural lightning. Emission spectra from an unstable positive leader in a 1 m rod‐plate air gap under switching impulse voltages were observed, spanning 300–800 nm.
Hengxin He, Yubin Huang, Wanxia Zhang, Chang Liu, Xiuyuan Yao, Yu Ying, Weijiang Chen   +6 more
wiley   +1 more source

Quantum Lightning Never Strikes the Same State Twice [PDF]

, 2017
Public key quantum money can be seen as a version of the quantum no-cloning theorem that holds even when the quantum states can be verified by the adversary.
B Barak, C Gentry, CH Bennett, CH Bennett, D Boneh, D Boneh, D Micciancio, D Unruh, D Unruh, J Ding, J-S Coron, MC Pena, MR Albrecht, R Cramer, S Garg, S Garg, S Wiesner, Y Chen   +17 more
core   +2 more sources

Dissolved Gas Generation Characteristics of Dielectric Liquids Under Partial Discharges and Breakdown Sparks

High Voltage, EarlyView.
ABSTRACT With the growing interest in monitoring and diagnostic techniques for assessing transformer condition, dissolved gas analysis (DGA) stands out as a crucial diagnostic tool to detect electrical and thermal faults in liquid‐immersed transformers.
Gechen Bian, Qiang Liu, Paul Jarman, Pascal Mavrommatis   +3 more
wiley   +1 more source