Results 41 to 50 of about 515,752 (255)

Shock wave focusing using geometrical shock dynamics [PDF]

open access: yes, 1997
A finite-difference numerical method for geometrical shock dynamics has been developed based on the analogy between the nonlinear ray equations and the supersonic potential equation.
Cates, J. E., Sturtevant, B.
core   +1 more source

Deformation and spallation of shocked Cu bicrystals with Σ3 coherent and symmetric incoherent twin boundaries [PDF]

open access: yes, 2012
We perform molecular dynamics simulations of Cu bicrystals with two important grain boundaries (GBs), Σ3 coherent twin boundaries (CTB), and symmetric incoherent twin boundaries (SITB) under planar shock wave loading.
An, Q.   +5 more
core   +1 more source

Design of ultrabright 270 keV DC photoelectron gun for ultrafast electron diffraction

open access: yesAIP Advances, 2020
Compact DC photoelectron guns of high-voltage are highly desired to output ultrabright and ultrashort electron pulses for accessing irreversible processes by using the ultrafast electron diffraction (UED) technique.
Jing Yang   +3 more
doaj   +1 more source

The microphysics of collisionless shock waves [PDF]

open access: yesReports on Progress in Physics, 2016
Collisionless shocks, that is shocks mediated by electromagnetic processes, are customary in space physics and in astrophysics. They are to be found in a great variety of objects and environments: magnetospheric and heliospheric shocks, supernova remnants, pulsar winds and their nebul , active galactic nuclei, gamma-ray bursts and clusters of galaxies
Marcowith, Alexandre   +14 more
openaire   +9 more sources

First-principles calculations of mechanical and electronic properties of silicene under strain

open access: yesAIP Advances, 2012
We perform first-principles calculations of mechanical and electronic properties of silicene under strains. The in-plane stiffness of silicene is much smaller than that of graphene.
Rui Qin   +3 more
doaj   +1 more source

Pressure vessel made by free forming using underwater explosion

open access: yesInternational Journal of Multiphysics, 2016
Explosive forming is one particular forming technique, in which, mostcommonly, water is used as the pressure transmission medium. In recentyears, we have done the development of the method which obtains anecessary form of the metal by the control of ...
H Iyama, H Maehara, Y Hidaka, S Itoh
doaj   +1 more source

Shock Waves in Disordered Media [PDF]

open access: yesPhysical 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   +4 more
openaire   +6 more sources

On Reflection of Shock Waves from Boundary Layers [PDF]

open access: yes, 1952
Measurements of the reflection characteristics of shock waves from a flat surface with a laminar and turbulent boundary layer are presented. The investigations were carried out at Mach numbers from about 1.3 to 1.5 and a Reynolds number of 0.9 x 10^4.
Dhawan, S., Liepmann, H. W., Roshko, A.
core   +1 more source

Wave Profile for Anti-force Waves with Maximum Possible Currents [PDF]

open access: yes, 2015
In the theoretical investigation of the electrical breakdown of a gas, we apply a one-dimensional, steady state, constant velocity, three component fluid model and consider the electrons to be the main element in propagation of the wave. The electron gas
Childs, W. P.   +3 more
core   +3 more sources

Shock waves on complex networks [PDF]

open access: yesScientific Reports, 2014
Power grids, road maps, and river streams are examples of infrastructural networks which are highly vulnerable to external perturbations. An abrupt local change of load (voltage, traffic density, or water level) might propagate in a cascading way and affect a significant fraction of the network.
Enys Mones   +3 more
openaire   +7 more sources

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