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Study of a bimolecular annihilation process for coarsening reactants
(American Institute of Physics, 1999-04-30)
Article.
Accés obert
Article.
Accés obert
We consider the spatio-temporal behavior of the A+B→0 bimolecular reaction in a system where both reactants tend to segregate into separated phases. Our study is based on the numerical solution of a pair of reaction–diffusion ...
Effects of domain morphology in phase-separation dynamics at low temperature.
(American Physical Society, 1993-09-01)
Article.
Accés obert
Article.
Accés obert
We present numerical results of the deterministic Ginzburg-Landau equation with a concentration-dependent diffusion coefficient, for different values of the volume fraction phi of the minority component. The morphology of ...
Asymptotic analysis of the Gunn effect with realistic boundary conditions
(The American Physical Society, 1997-08-31)
Article.
Accés obert
Article.
Accés obert
A general asymptotic analysis of the Gunn effect in n-type GaAs under general boundary conditions for
metal-semiconductor contacts is presented. Depending on the parameter values in the boundary condition of
the injecting ...
Phase-field model of Hele-Shaw flows in the high-viscosity constrast regime
(American Physical Society, 2003-10-29)
Article.
Accés obert
Article.
Accés obert
A one-sided phase-field model is proposed to study the dynamics of unstable interfaces of Hele-Shaw flows in the high viscosity contrast regime. The corresponding macroscopic equations are obtained by means of an asymptotic ...
Minimization of Viscous Fluid Fingering: A Variational Scheme for Optimal Flow Rates
(2012-10-05)
Article.
Accés obert
Article.
Accés obert
Conventional viscous fingering flow in radial Hele-Shaw cells employs a constant injection rate, resulting in the emergence of branched interfacial shapes. The search for mechanisms to prevent the development of these ...
Escape over a potential barrier driven by colored noise: large but finite correlation time
(1988)
Article.
Accés obert
Article.
Accés obert
The recent theory of Tsironis and Grigolini for the mean first-passage time from one metastable state to another of a bistable potential for long correlation times of the noise is extended to large but finite correlation times.
Numerical study of the generation and dispersion of a bubble jet in microgravity
(International Astronautical Federation, 2006-10)
Comunicació de congrés.
Accés obert
Comunicació de congrés.
Accés obert
Mechanisms for initiation of cardiac discordant alternans
(Springer, 2007-07-31)
Article.
Accés restringit per política de l'editorial
Article.
Accés restringit per política de l'editorial
Electrical alternans, defined as a beat-to-beat change in the duration of the excited phase of cardiac cells, is among the known precursors of sudden cardiac death. It may appear as concordant (all the tissue presenting ...
Front propagation in spatially modulated media
(American Physical Society, 1997-09-01)
Article.
Accés obert
Article.
Accés obert
A two-dimensional reaction-diffusion front which propagates in a modulated medium is studied. The modulation
consists of a spatial variation of the local front velocity in the transverse direction to that of the ...
Numerical algorithm for Ginzburg-Landau equations with multiplicative noise: application to domain growth
(The American Physical Society, 1993-07-01)
Article.
Accés obert
Article.
Accés obert
We consider stochastic partial differential equations with multiplicative noise. We derive an algorithm for the computer simulation of these equations. The algorithm is applied to study domain growth of a model with a ...