Lightning initiation: Strong pulses of VHF radiation accompany preliminary breakdown [PDF]
Scientific Reports, 2018 We analyze lightning initiation process using magnetic field waveforms of preliminary breakdown (PB) pulses observed at time scales of a few tens of microseconds by a broad-band receiver.
Ivana Kolmašová +11 more
doaj +9 more sources
Time domain simulations of preliminary breakdown pulses in natural lightning [PDF]
Journal of Geophysical Research D: Atmospheres, 2015 AbstractLightning discharge is a complicated process with relevant physical scales spanning many orders of magnitude. In an effort to understand the electrodynamics of lightning and connect physical properties of the channel to observed behavior, we construct a simulation of charge and current flow on a narrow conducting channel embedded in three ...
Carlson BE +3 more
exaly +10 more sources
Characterization preliminary breakdown in the measured lightning electric fields [PDF]
2014 IEEE 8th International Power Engineering and Optimization Conference (PEOCO2014), 2014 In this study, characterization of measured electric fields due to lightning channel was done. Likewise, previous studies on this case were reviewed and discussed accordingly. Furthermore, preliminary breakdown was done in detail and it was indicated on the real measured electric fields and the results were discussed.
N Rameli, M Izadi, M Z A Ab Kadir
exaly +4 more sources
Characteristics of Preliminary Breakdown Pulses in Positive Ground Flashes during Summer Thunderstorms in Sweden [PDF]
Atmosphere, 2016 This paper presents the characteristics of the preliminary breakdown pulses (PBP) in 51 positive ground flashes recorded during 2014 summer thunderstorms in Sweden.
Dalina Johari +4 more
doaj +5 more sources
Characteristics of the Preliminary Breakdown in Inverted-polarity Intracloud Lightning Flashes
应用气象学报, 2023 The intracloud (IC) flashes can be classified into normal and inverted-polarity types according to their initial leader propagation directions. Due to the rare occurrence of inverted-polarity IC flashes with downward preliminary breakdown (PB) processes,
Gao Panliang +4 more
doaj +2 more sources
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 +2 more
doaj +3 more sources
Locating Preliminary Breakdown Pulses in Positive Cloud‐to‐Ground Lightning [PDF]
Journal of Geophysical Research D: Atmospheres, 2018 AbstractThis paper provides the first concrete evidence that preliminary breakdown (PB) pulses of either polarity in positive cloud‐to‐ground (+CG) lightning are produced by negative leaders. Three‐dimensional location results of PB pulses in 46 +CG flashes are analyzed.
Daohong Wang, Ting Wu
exaly +2 more sources
Temporal and Spatial Characteristics of Preliminary Breakdown Pulses in Intracloud Lightning Flashes [PDF]
Journal of Geophysical Research D: Atmospheres, 2019 AbstractWe have studied the temporal and spatial characteristics of preliminary breakdown (PB) pulses in 32 normal intracloud flashes recorded by a fast antenna lightning mapping array system called Fast Antenna Lightning Mapping Array. It was found that PB processes started with a stage of preliminary isolated pulses (PIPs) and followed by classic PB ...
Daohong Wang, Shi Dong Dong, Ting Wu
exaly +2 more sources
A zebrafish multimodal toolbox to study the blood-brain barrier in health and disease [PDF]
Scientific ReportsVasogenic edema, due to inner blood-retinal barrier (BRB) disruption, is a major cause of vision loss across various ocular diseases. Similarly, blood-brain barrier (BBB) breakdown is a hallmark of many neurological disorders.
Noëlle Bakker-van Bugnum +10 more
doaj +2 more sources
Optimized Zebrafish In Vitro Maturation with Real-Time Morphometric Workflow Reveals Inhibition by 1,2-Bis(2,4,6-tribromophenoxy)ethane (BTBPE) [PDF]
ToxicsNovel brominated flame retardants (NBFRs), including 1,2-bis(2,4,6-tribromophenoxy)ethane (BTBPE), are emerging endocrine-disrupting chemicals, though their direct effects on female gamete maturation remain insufficiently characterized. In this study, we
Tao Xu +10 more
doaj +2 more sources