Results 31 to 40 of about 1,732,841 (212)

LOFAR Observations of Lightning Initial Breakdown Pulses [PDF]

, 2022
This paper reports an observational study of lightning initial breakdown pulses (IBPs) using the low-frequency array radio telescope and a broadband magnetic field sensor.
Dwyer, Joseph R., Sterpka, Christopher F., Santolík, Ondřej, Brian M. Hare, Ondřej Santolík, Kolmašová, Ivana, Ningyu Y. Liu, Hare, Brian M., Hare, Brian M.; id_orcid, Joseph R. Dwyer, Olaf Scholten, Scholten, Olaf, Ivana Kolmašová, Liu, Ningyu Y., Christopher F. Sterpka   +14 more
core   +2 more sources

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

Journal 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, Satoru Yoshida, Yasuhiro Akiyama, Michael Stock, Tomoo Ushio, Zen Kawasaki   +5 more
openaire   +1 more source

Correlation analysis between initial preliminary breakdown process, the characteristic of radiation pulse, and the charge structure on the Qinghai‐Tibetan Plateau [PDF]

Journal of Geophysical Research: Atmospheres, 2016
AbstractUsing synchronous data from a three‐dimensional lightning VHF radiation source mapping system, broadband electric field changes, and the radiation intensity of lightning on the Qinghai‐Tibetan Plateau, we divided the preliminary breakdown process into two processes by subdividing the original definition: an initial preliminary breakdown process
Bin Wu, Guangshu Zhang, Jun Wen, Tong Zhang, Yajun Li, Yanhui Wang   +5 more
openaire   +1 more source

Statistical Analysis on Preliminary Breakdown Pulses of Positive Cloud-to-Ground Lightning in Malaysia

International Journal of Electrical and Computer Engineering (IJECE), 2016
<p>This aim of this paper is to study the preliminary breakdown pulses (PBP) of positive cloud-to-ground (+CG) lightning flashes in Malaysia. There is a difference in PBP characteristics when a comparison is made between positive and negative flashes.
Wooi, Chin Leong, Abdul-Malek, Zulkurnain, Ahmad, Noor Azlinda, Mokhtari, Mehrdad, Salimi, Behnam   +4 more
openaire   +2 more sources

The suitability of N2 to replace SF6 in a triggered spark-gap switch for pulsed power applications [PDF]

, 2009
The high dielectric strength of sulphur hexafluoride (SF6) when compared with other gases, coupled with safety benefits such as non-flammability and non-toxicity, has seen the widespread use of SF6 for the insulation of switching components. However, SF6
Timoshkin, I., MacGregor, S.J., Sinclair, M.A., Thomas, K.J., Wilson, M.P., Given, M.J., Stewart, G.R.   +6 more
core   +3 more sources

Data for "Temporal and Spatial Characteristics of Preliminary Breakdown Pulses in Intracloud Lightning Flashes"

, 2019
<p>In the manuscript entitled "Temporal and Spatial Characteristics of Preliminary Breakdown Pulses in Intracloud Lightning Flashes", the corresponding data is provided in the following attachment. These files can be opened by Matlab 2016
Dongdong Shi (3876910), Nobuyuki Takagi, Nobuyuki Takagi (5210180), Ting Wu, Dongdong Shi, Ting Wu (106368), Daohong Wang, Daohong Wang (5210177)   +7 more
core   +1 more source

Investigating the Effect of Inclination Angle and the Influence of Scan Parameters on the Appearance and Thermal and Mechanical Properties of Filigree Tension Rods of LPBF‐Manufactured NiTi Shape‐Memory Alloys

Advanced Engineering Materials, EarlyView.
This article investigates the dependence of the properties on the manufacturing orientation in the form of the inclination angle to the build plate of LPBF‐fabricated NiTi rods with a diameter of 150–220 µm. Metallographic, chemical, thermal, and mechanical characterization show behavior under identical manufacturing conditions that ranges from ...
Sandra Herzig, Michael Werner, Christian Rotsch   +2 more
wiley   +1 more source

Gradient‐Conductivity Architecture Enables Synchronous Enhancement of Sensitivity and Detection Range in Multifunctional All‐Paper Sensors

Advanced Functional Materials, EarlyView.
A gradient‐engineered all‐paper sensor is fabricated by integrating MXene and in situ grown AgNPs within hierarchical cellulose networks. The device breaks the sensitivity–detection range trade‐off through cascaded conductive pathways, enabling ultrahigh pressure sensitivity, humidity–pressure decoupled dual‐mode sensing, and outstanding EMI shielding,
Ao Li, Jun Xu, Dezhong Xu, Zhaohui Zhang, Jiyi Li, Daxian Cao, Kefu Chen, Mizi Fan   +7 more
wiley   +1 more source

Leaftronics: Bio‐Fractal Scaffolds From Leaf Venation for Low‐Waste Electronics

Advanced Materials, EarlyView.
“Leaftronics” transforms naturally evolved leaf venation into quasi‐fractal scaffolds for sustainable electronics. Polymer‐infiltrated leaf skeletons can be used to fabricate ultra‐smooth, reflow‐ and thin‐film‐compatible decomposable substrates, while making the same lignocellulose networks conducting results in flexible transparent electrodes.
Rakesh Rajendran Nair, Hrisheekesh Thachoth Chandran, Karl Leo, Hans Kleemann   +3 more
wiley   +1 more source

A Geometrically Transient Platform for Bioelectronic Implants

Advanced Materials, EarlyView.
Minimally invasive bioelectronic implants often compromise performance for smaller sizes. To resolve this optimization dilemma, a wireless bioelectronic implant with a transient geometry is introduced (MiFi). The origami‐inspired device miniaturizes up to sixfold for syringe insertion and autonomously unfolds post‐implantation.
Selin Olenik, John D. Goodwin, Atharv Naik, Philip Coatsworth, Ioi Chit Cheung, Farbod Amirghasemi, Anies Sohi, Ehsan Abedi, Tayeb Tadlaoui, Maral P. S. Mousavi, Andriy S. Kozlov, Victoria Salem, Andrew S. Cowburn, Firat Guder   +13 more
wiley   +1 more source