Results 81 to 90 of about 63,606 (258)

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

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

Estimating the summertime tropospheric ozone distribution over North America through assimilation of observations from the Tropospheric Emission Spectrometer [PDF]

, 2008
We assimilate ozone and CO retrievals from the Tropospheric Emission Spectrometer (TES) for July and August 2006 into the GEOS-Chem and AM2-Chem models.
A. M. Thompson, Beer, Benkovitz, Bey, Bowman, Bowman, Brasseur, Chai, Clark, Clough, Cooper, Cooper, D. B. A. Jones, D. W. Tarasick, Duncan, Duncan, Elbern, Fiore, Fishman, Geer, GFDL GAMDT, Horowitz, Horowitz, Hudman, Hudman, J. C. Witte, Jones, Jourdain, K. W. Bowman, Khattatov, Kulawik, L. W. Horowitz, Lahoz, Lamarque, Lawrence, Li, Liang, Logan, Logan, Luo, Luo, M. Parrington, McLinden, Munro, Ménard, Nassar, Oltmans, Osterman, Pickering, Pierce, Price, Price, Randel, Rodgers, Sauvage, Segers, Stevenson, Tarasick, Tellmann, TES Science Team, Thompson, Thompson, Tie, Wild, Worden, Yevich   +65 more
core   +1 more source

Absolute scaling of small‐ and wide‐angle X‐ray scattering images recorded with short duration X‐ray pulses on a large area fiber‐taper X‐ray detector

Journal of Synchrotron Radiation, EarlyView.
An X‐ray scattering setup designed to capture small‐ and wide‐angle X‐ray scattering on a single, large area detector features a partially transmissive beamstop that facilitates non‐invasive recording of X‐ray beam position and intensity during acquisition of X‐ray scattering images.
Hyun Sun Cho, Friedrich Schotte, Robert Henning, Philip A. Anfinrud   +3 more
wiley   +1 more source

DNA‐Methylation for Risk‐Stratification of Women Without a Fully Visible Transformation Zone at Colposcopy: A Cross‐Sectional Study

BJOG: An International Journal of Obstetrics &Gynaecology, EarlyView.
ABSTRACT Objective To evaluate the performance of DNA methylation markers for the detection of cervical precancer among screening‐positive older women without a fully visible transformation zone at colposcopy (TZ3). Design Cross‐sectional study. Setting Colposcopy clinics, Central Denmark Region, 2019–2021.
Karen Omann Binderup, Joachim Boers, Line Winther Gustafson, Berit Andersen, Lone Kjeld Petersen, Pinar Bor, Joost Gribnau, Wim G. V. Quint, Henk Van Den Munckhof, Mette Tranberg, Anne Hammer   +10 more
wiley   +1 more source

Searching for effects caused by thunderstorms in midlatitude sporadic E layers [PDF]

, 2017
Possible thunderstorm - sporadic E (Es) layer coupling effects are investigated during two measurement periods, one in 2013 and one in 2014. The analysis was based on ionospheric observations obtained from a Digisonde at Pruhonice, the Czech Republic, an
Barta, Veronika, Bencze, Pál, Berényi, Kitti A., Buresova, Dalia, Bór, József, Chum, Jaroslav, Haldoupis, Christos, Kis, Árpád, Popek, Martin, Pozoga, Mariusz, Sátori, Gabriella   +10 more
core   +2 more sources

e3SIM: Epidemiological‐ecological‐evolutionary simulation framework for genomic epidemiology

Methods in Ecology and Evolution, EarlyView.
Abstract Infectious disease dynamics result from the complex interplay of epidemiological, ecological and evolutionary (epi‐eco‐evo) processes. Accurately modelling these coupled processes is crucial for understanding pathogen spread and informing public health strategies.
Peiyu Xu, Shenni Liang, Andrew Hahn, Vivian Zhao, Wai Tung ‘Jack’ Lo, Benjamin C. Haller, Benjamin Sobkowiak, Melanie H. Chitwood, Caroline Colijn, Ted Cohen, Kyu Y. Rhee, Philipp W. Messer, Martin T. Wells, Andrew G. Clark, Jaehee Kim   +14 more
wiley   +1 more source