Results 21 to 30 of about 41,392 (261)

Shock Reduction Technique on Thin Plate Structure by Wave Refraction Using an Elastic Patch

Shock and Vibration, 2021
In general, bending waves transfer the largest portion of shock energy in a plate-like structure. This study proposes a new shock reduction method using an elastic patch designed to defocus the bending waves through the refraction of the waves so that it
Dae-Hyun Hwang, Jae-Hung Han
doaj   +1 more source

EVALUATION OF CORONAL SHOCK WAVE VELOCITIES FROM THE II TYPE RADIO BURSTS PARAMETERS

Odessa Astronomical Publications, 2016
The work presents the results of research of connection between the coronal shock waves and the parameters of type II (mII) meter-decameter bursts in 25- 180 MHz band for 66 solar proton events.
V. V. Galanin, E. A. Isaeva, R. O. Kravetz   +2 more
doaj   +1 more source

Study of the conditions of fracture at explosive compaction of powders

Fracture and Structural Integrity, 2013
Joint theoretical and experimental investigations have allowed to realize an approach with use of mathematical and physical modeling of processes of a shock wave loading of powder materials.
Andrey E. Buzyurkin, Evgeny I. Kraus, Yaroslav L. Lukyanov   +2 more
doaj   +3 more sources

Experimental laboratory study on the formation of multiple shock waves observed during volcanic eruptions

Geophysical Research Letters, 2016
Sequences of multiple pressure waves have recently been observed in different explosive volcanic eruptions, but their origin is not clearly understood.
E. F. Médici, G. P. Waite
doaj   +1 more source

Magnetic field fluctuations across the Earth’s bow shock [PDF]

Annales Geophysicae, 2001
We present a statistical analysis of 132 dayside (LT 0700-1700) bow shock crossings of the AMPTE/IRM spacecraft. We perform a superposed epoch analysis of low frequency, magnetic power spectra some minutes up-stream and downstream of the bow shock ...
A. Czaykowska, T. M. Bauer, R. A. Treumann, R. A. Treumann, R. A. Treumann, R. A. Treumann, W. Baumjohann, W. Baumjohann   +7 more
doaj   +1 more source

Shock Waves in Nanomechanical Resonators [PDF]

Physical Review Letters, 2008
The dream of every surfer is an extremely steep wave propagating at the highest speed possible. The best waves for this are would be shock waves, but are very hard to surf. In the nanoscopic world the same is true: the surfers in this case are electrons riding through nanomechanical devices on acoustic waves.
Beil, Florian W., Wixforth, Achim, Wegscheider, Werner, Schuh, Dieter, Bichler, Max, Blick, Robert H.   +5 more
openaire   +3 more sources

X-ray free electron laser observation of ultrafast lattice behaviour under femtosecond laser-driven shock compression in iron

Scientific Reports, 2023
Over the past century, understanding the nature of shock compression of condensed matter has been a major topic. About 20 years ago, a femtosecond laser emerged as a new shock-driver. Unlike conventional shock waves, a femtosecond laser-driven shock wave
Tomokazu Sano, Tomoki Matsuda, Akio Hirose, Mitsuru Ohata, Tomoyuki Terai, Tomoyuki Kakeshita, Yuichi Inubushi, Takahiro Sato, Kohei Miyanishi, Makina Yabashi, Tadashi Togashi, Kensuke Tono, Osami Sakata, Yoshinori Tange, Kazuto Arakawa, Yusuke Ito, Takuo Okuchi, Tomoko Sato, Toshimori Sekine, Tsutomu Mashimo, Nobuhiko Nakanii, Yusuke Seto, Masaya Shigeta, Takahisa Shobu, Yuji Sano, Tomonao Hosokai, Takeshi Matsuoka, Toshinori Yabuuchi, Kazuo A. Tanaka, Norimasa Ozaki, Ryosuke Kodama   +30 more
doaj   +1 more source

Shock Waves in Disordered Media [PDF]

Physical Review Letters, 2012
We experimentally investigate the interplay between spatial shock waves and the degree of disorder during nonlinear optical propagation in a thermal defocusing medium. We characterize the way the shock point is affected by the amount of disorder and scales with wave amplitude.
N Ghofraniha, S Gentilini, V Folli, E DelRe, C Conti   +4 more
openaire   +5 more sources

Sharp viscous shock waves for relaxation model with degeneracy

Advances in Nonlinear Analysis
This article is concerned with a relaxation model with degeneracy. Different from the existing studies on the regular viscous shock waves, we recognize that when the sub-characteristic condition is degenerate, the dynamical system possesses sharp viscous
Xu Shufang, Mei Ming, Sheng Wancheng, Wang Zejia   +3 more
doaj   +1 more source

Subclinical Optic Nerve Involvement in Radiologically Isolated Syndrome: Multimodal Detection and Diagnostic Impact

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objectives We aimed to determine the frequency of subclinical optic nerve (ON) lesions using MRI, optical coherence tomography (OCT), and visual evoked potentials (VEP) in radiologically isolated syndrome (RIS), and to assess their diagnostic and prognostic significance.
Christine Lebrun‐Frenay, Cassandre Landes‐Château, Lydiane Mondot, Mikael Cohen, Margherita Popolo, Jérôme de Seze, Bertrand Bourre, Françoise Durand‐Dubief, Olivier Casez, Orhun H. Kantarci, Aksel Siva, Stephanie Baillif, Darin T. Okuda, Letizia Leocani   +13 more
wiley   +1 more source