Results 41 to 50 of about 41,225 (275)

Lightning current tests on radars and similar structures [PDF]

, 2010
A lightning stroke presents a real challenge due to its potential to cause irreversible damage on electronics. Future systems are packaged in composite shielding materials, which give little or no protection with respect to the electromagnetic fields ...
Blaj, M.A., Buesink, F.J.K., Damstra, G.C., Leferink, F.B.J.   +3 more
core   +5 more sources

The Sandia transportable triggered lightning instrumentation facility [PDF]

, 1991
Development of the Sandia Transportable Triggered Lightning Instrumentation Facility (SATTLIF) was motivated by a requirement for the in situ testing of a munitions storage bunker.
Fisher, Richard J., Schnetzer, George H.
core   +1 more source

Attempts to create ball lightning with triggered lightning

Journal of Atmospheric and Solar-Terrestrial Physics, 2010
We describe attempts to create ball lightning by directing lightning, triggered from natural thunderclouds using the rocket-and-wire technique, through a variety of materials. Some of the observed phenomena have features in common with natural ball lightning or with laboratory attempts to create it: flame-like luminosity for up to 0.5 s above salt ...
Department of Electrical and Computer Engineering, University of Florida, Gainesville, FL 32611, USA ( host institution ), Hill, Jonathan D. ( author ), Uman, Martin A. ( author ), Stapleton, Michael ( author ), Jordan, Douglas M. ( author ), Chebaro, Alexander M. ( author ), Biagi, Christopher J. ( author )   +6 more
openaire   +2 more sources

Lightning attachment processes of an “anomalous” triggered lightning discharge [PDF]

Journal of Geophysical Research: Atmospheres, 2014
AbstractUsing a high‐speed optical imaging system specifically designed for observing the lightning attachment process, we have documented the process for stepped, dart, and dart‐stepped leaders in an anomalous rocket‐triggered lightning flash that terminated on a 10 m grounded utility pole.
D. Wang, W. R. Gamerota, M. A. Uman, N. Takagi, J. D. Hill, J. Pilkey, T. Ngin, D. M. Jordan, S. Mallick, V. A. Rakov   +9 more
openaire   +1 more source

Selective Targeting of Immune Checkpoints HLA‐G and CD47 Using Novel Dual Signaling Protein DSP216 Promotes Innate Anticancer Immunity

Advanced Science, EarlyView.
The inhibitory immune checkpoints HLA‐G and CD47 are expressed on certain tumor types and inhibit immune cells in the tumor microenvironment. DSP216 binds specifically to cancer cells expressing both HLA‐G and CD47, and blocks their inhibitory signaling.
Lisa J. Jacob, Liat Tamir, Mufeed Abdeen, Ami Tamir, Alexandra Aronin, Itai Bloch, Roy Kahn, Iris Pecker, Mark Tykocinski, Gerwin Huls, Yaron Pereg, Ayelet Chajut, Edwin Bremer   +12 more
wiley   +1 more source

Diagnostic analysis of triggered lightning with distributed acoustic sensing

npj Climate and Atmospheric Science
Distributed acoustic sensing (DAS) was used for the first time to track the sources of acoustic signals associated with triggered lightning. A 4.2-km-long optical fiber cable, encompassing the lightning triggering site, was recast as 2100 acoustic ...
Heting Hong, Yashun Tian, Baoshan Wang, Gaopeng Lu, Weitao Lyu, Yanfeng Fan, Yang Zhang   +6 more
doaj   +1 more source

VHF lightning mapping observations of a triggered lightning flash [PDF]

Geophysical Research Letters, 2012
On 3 August 2010 an extensive lightning flash was triggered over Langmuir Laboratory in New Mexico. The upward positive leader propagated into the storm's midlevel negative charge region, extending over a horizontal area of 13 × 13 km and 7.5 km altitude. The storm had a normal‐polarity tripolar charge structure with upper positive charge over midlevel
H. E. Edens, K. B. Eack, E. M. Eastvedt, J. J. Trueblood, W. P. Winn, P. R. Krehbiel, G. D. Aulich, S. J. Hunyady, W. C. Murray, W. Rison, S. A. Behnke, R. J. Thomas   +11 more
openaire   +1 more source

Earthquake and Tsunami NaTech Risk Assessment for Oil Storage Facilities

Earthquake Engineering &Structural Dynamics, EarlyView.
ABSTRACT Interaction of natural and technological hazards (NaTech) events, such as tsunamis and earthquakes, can affect industrial facilities such as those featuring anchored atmospheric storage tanks. Consequences of natural events on this kind of installation may include the release of hazardous substances, which in turn can lead to industrial ...
Georgios Baltzopoulos, Pasquale Cito, Federica Ricci, Manuela Volpe, Jacopo Selva, Valerio Cozzani, Iunio Iervolino   +6 more
wiley   +1 more source

Mechanism and Control Analysis of Synchronous Frequency Resonance in Distributed Power Generation System Connected to Grid

Energy Science &Engineering, EarlyView.
Small‐signal modeling reveals that insufficient system damping positions conjugate poles near the imaginary axis, fundamentally explaining the SFR mechanism. A virtual resistance control is consequently proposed to damp the resonance and effectively suppress SFR, which is validated through Hardware‐in‐the‐Loop experiments.
Yujie Gu, Jianbo Yi, Haoran Rui, Qi Huang   +3 more
wiley   +1 more source

First ground-based observations of sprites over southern Africa

South African Journal of Science, 2018
Sprites are the optical signatures of electrical discharges in the mesosphere triggered by large lightning strikes associated with thunderstorms. Since their discovery in the late 1980s, sprites have been observed extensively around the world, although ...
Stanislaus Nnadih, Mike Kosch, Peter Martinez, Jozsef Bor   +3 more
doaj   +1 more source