Results 31 to 40 of about 73,037 (289)

Shock waves in superconducting cosmic strings: growth of current

open access: yes, 2012
Intrinsic equations of motion of superconducting cosmic string may admit solutions in the shock-wave form that implies discontinuity of the current term \chi. The hypersurface of discontinuity propagates at finite velocity determined by finite increment \
A. M. Anile   +4 more
core   +1 more source

Delta shocks interactions and the wave front tracking method

open access: yesJournal of Mathematical Analysis and Applications, 2013
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Dedović, Nebojša, Nedeljkov, Marko
openaire   +3 more sources

Delta shock wave interactions via wave front tracking method

open access: yes, 2009
In this paper we discuss delta shock interaction problem for a pressureless gas dynamics system with two different ways of approaching the subject. The first one is by using shadow wave solution concept. The result of two delta shock interactions is delta shock with non-constant speed in a general case. The second one is by perturbing the system with a
Dedovic, Nebojsa, Nedeljkov, Marko
openaire   +2 more sources

Collisions of Shock Waves in General Relativity

open access: yes, 2011
We show that the Nariai-Bertotti Petrov type D, homogeneous solution of Einstein's vacuum field equations with a cosmological constant describes the space-time in the interaction region following the head-on collision of two homogeneous, plane ...
Barrabès, C., Hogan, P. A.
core   +3 more sources

Nonlinear algebraic analysis of delta shock wave solutions to Burgers’ equation [PDF]

open access: yesPacific Journal of Mathematics, 2003
This paper uses an abstract algebraic analysis to study delta shock wave solutions to Burgers' equation. It uses three fundamental structures in order to define in a very general way a sheaf of differential algebras that contains within it most of the special cases that are encountered in the theory of generalized functions. By making a suitable choice
openaire   +2 more sources

Eulerian droplet model: Delta-shock waves and solution of the Riemann problem [PDF]

open access: yesJournal of Mathematical Analysis and Applications, 2019
We study an Eulerian droplet model which can be seen as the pressureless gas system with a source term, a subsystem of this model and the inviscid Burgers equation with source term. The condition for loss of regularity of a solution to Burgers equation with source term is established.
Keita, Sana, Bourgault, Yves
openaire   +3 more sources

Morphological characterization of shocked porous material

open access: yes, 2009
Morphological measures are introduced to probe the complex procedure of shock wave reaction on porous material. They characterize the geometry and topology of the pixelized map of a state variable like the temperature.
Aiguo Xu   +14 more
core   +1 more source

Electrical Conductivities of Conductors, Semiconductors, and Their Mixtures at Elevated Temperatures

open access: yesAdvanced Engineering Materials, EarlyView.
This article presents a comprehensive review of temperature‐dependent electrical conductivity data for multiple material classes at elevated temperatures, highlighting a persistent conductivity gap between metals and semiconductors in the range of 102$\left(10\right)^{2}$– 107$\left(10\right)^{7}$ S/m. Metal–ceramic irregular metamaterials are proposed
Valentina Torres Nieto, Marcia A. Cooper
wiley   +1 more source

Direct Numerical Simulation of Impinging Shock Wave/Transitional Boundary Layer Interaction with Separation Flow

open access: yesJournal of Fluid Science and Technology, 2011
The interaction of a spatially transitional boundary layer flow at freestream Mach number M = 2.0 with an impinging oblique shock wave (β = 35.56) is studied by means of direct numerical simulation (DNS).
Yusuke TOKURA, Hiroshi MAEKWA
doaj   +1 more source

COVID-19-Associated Mucormycosis: An Opportunistic Fungal Infection. A Case Series and Review

open access: yesInternational Journal of Infectious Diseases, 2022
Background: A surge in COVID-19-associated mucormycosis cases has been observed during the second wave of COVID-19 in summer of 2021. Most cases were reported from India. The Delta variant (B.1.617.2) was the most common variant circulating at that time.
Asma Al Balushi   +14 more
doaj   +1 more source

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