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FLAME PROPAGATION IN ONE-DIMENSIONAL STATIONARY ERGODIC MEDIA
FLAME PROPAGATION ONE-DIMENSIONAL STATIONARY MEDIA
2015/10/15
This paper investigates front propagation in random media for a free boundary problem arising in combustion theory. We show the existence of asymptotic travelling waves solutions with effective speedd...
MAP SOURCE SEPARATION USING BELIEF PROPAGATION NETWORKS
MAP SOURCE SEPARATION BELIEF PROPAGATION NETWORKS
2015/9/29
In this paper we continue our treatment of source separation based on dynamic sparse source signal models. Source signals are modeled in frequency domain as a product of a Bernoulli selection variable...
SWEEPING PRECONDITIONERS FOR ELASTIC WAVE PROPAGATION WITH SPECTRAL ELEMENT METHODS
Elastic wave seismic wave time-harmonic frequency domain spectral elements parallel preconditioner iterative solver sparse-direct perfectly matched layers full waveform inversion
2015/7/14
We present a parallel preconditioning method for the iterative solution of the time-harmonicelastic wave equation which makes use of higher-order spectral elements to reduce pollution error. In partic...
Quenching and propagation in KPP reaction-diffusion equations with a heat loss
Quenching and propagation KPP reaction-diffusion equations heat loss
2015/7/14
We consider a reaction-diffusion system of the KPP type in a shear flow and with a non-zeroheat loss parameter. We establish criteria for the flame blow-off and propagation, and identify the propagati...
Bounds on the speed of propagation of the KPP fronts in a cellular flow
propagation KPP fronts cellular flow
2015/7/14
We consider a reaction-diffusion-advection equation with a nonlinearity of the KPP type in a cellular flow. We show that the minimal pulsating traveling front speed c∗(A) in a flow ofamplitude A...
Propagation and quenching in a reactive Burgers-Boussinesq system
Propagation quenching Burgers-Boussinesq system
2015/7/14
We investigate the qualitative behavior of solutions of a Burgers-Boussinesq system – a reaction-diffusion equation coupled via gravity to a Burgers equation – by a combination of numerical, asymptoti...
Influence of irregularity and rigidity on the propagation of torsional wave
Torsional waves heterogeneous half-space irregular boundary
2010/9/21
The paper is devoted to investigate the effect of presence of rigid boundary on the propagation of torsional surface wave in a homogeneous layer over a semi infinite heterogeneous half space with an i...
Propagation of SH waves in an irregular non homogeneous monoclinic crustal layer over a semi-infinite monoclinic medium
SH waves Monoclinic Irregular boundaries
2010/9/26
The present paper discuss the dispersion equation for SH waves in a non homogeneous monoclinic layer over a semi infinite isotropic monoclinic medium with an irregularity. The dispersion equation has ...
Propagation of CR extendibility at the vertex of a complex sector
CR extendibility complex sector
2010/11/23
We study propagation of CR extendibility at the vertex $p$ of an analytic sector $A$ contained in a CR manifold $M$. Let $k$ be the weighted vanishing order of $M$ and $\alpha $ the complex angle of $...
On the propagation of oceanic waves driven by a strong macroscopic flow
oceanic waves macroscopic flow
2010/11/23
In this work we study oceanic waves in a shallow water flow subject to strong wind forcing and rotation, and linearized around a inhomogeneous (non zonal) stationary profile. This extends the study \c...
Some dynamic propagation problems concerning mode III crack
complex functions mode Ⅲ crack
2010/9/17
By the methods of the theory of complex functions, dynamic propagation problems concerning mode Ⅲ crack were investigated. Analytical solutions can be obtained by the approaches of self-similar functi...
Propagation of torsional surface waves in heterogeneous half-space with irregular free surface
Torsional surface waves Irregularity Heterogeneous medium
2010/9/15
The effect of irregularity on the propagation of torsional surface waves in a heterogeneous, elastic half-space has been studied. The velocity equation has been derived. The velocities have been calcu...
Torsional waves propagation in an initially stressed dissipative cylinder
Cylinder (initially stressed) Damping Torsional wave propagation
2010/9/15
The present paper has been framed to show the effect of damping on the propagation of torsional waves in an initially stressed, dissipative, incompressible cylinder of infinite length. A governing equ...
In this paper, propagation of shear waves in an initially stressed anisotropic medium has been studied. The medium has also been considered as incompressible and non-homogeneous. The velocity equation...