We study heterogeneities in a binary Lennard-Jones system below the glass transition using molecular dynamics simulations. We identify mobile and immobile particles and measure their distribution of vibrational amplitudes. For temperatures near the glass transition the distribution of vibrational amplitudes obeys scaling and compares reasonably well with a mean-field theory for the amorphous so...

Findings that sub-threshold Voltage signals were propagated from Soma to Axon terminal may change the way we view Cortical Coding. How these signals were never considered before is a surprising error in both theoretical and experimental neuroscience. I address this by studying the effects of Heterogeneities in axon parameters, specifically membrane and internal resistances. Numerical studies wi...

The objective of this research is to develop an approach to federating heterogeneous information systems using emerging semantic web technologies. This research-in-progress paper describes a system architecture, in which web services are used to resolve system level heterogeneities while ontologies are used to resolve semantics level heterogeneities across local systems. The healthcare domain h...

The objective of this paper is to perform, by means of Γ -convergence and two-scale convergence, a rigorous derivation of the homogenized GIBBS-LANDAU free energy functional associated to a composite periodic ferromagneticmaterial, i.e. a ferromagneticmaterial in which the heterogeneities are periodically distributed inside the media. We thus describe the Γ -limit of the GIBBS-LANDAU free energ...

We have achieved highly localized control of pattern formation in two-dimensional nanoparticle assemblies by direct modification of solvent dewetting dynamics. A striking dependence of nanoparticle organization on the size of atomic force microscope-generated surface heterogeneities is observed and reproduced in numerical simulations. Nanoscale features induce a rupture of the solvent-nanoparti...

To model the effects of volume heterogeneities in 1) scattering from sand sediments and 2) in sound propagation within those sediments. A better understanding of the role of heterogeneities in both scattering and propagation could lead to improvements in sediment characterization using remote sensing techniques as well as in high-frequency detection of mine and mine-like targets resting on or b...