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The influence of random microstructures and strengths on mechanical performance of advanced ceramics is now being recognized as critical. Experimental results on new ceramics demonstrate the importance of stochastic phenomena, particularly in fiber-reinfor ...
We briefly review some recent photoelectron spectroscopy (PES) studies of quasi one- and two-dimensional metallic systems. We discuss the spectral features of a metallic system, the expected fingerprints of the metal-insulator transition and some experimen ...
Using the Car-Parrinello method, the authors have obtained unforeseen structures for the low-lying isomers of Si45 and other midsized Si clusters. They are formed by two shells of atoms, the outer one (cage) being fullerenelike and the inner one (core) con ...
Recent work on the spectroscopic and photophys. properties of the excited states of Cl2 trapped in an Ar matrix is compared with independent gas-phase results on Cl2 + rare gas as well as with other matrix studies. An alternative interpretation of the resu ...
Proposes a general framework to enhance grasping interactions of an operator wearing a digital glove. The authors focus on a consistent interpretation of the posture information acquired with the glove in order to reflect the grasp of virtual artifacts. Th ...
Using a stable pseudospectral multi-domain method we investigate the dynamics of localized wavefields in the extended derivative nonlinear Schrodinger equation, with particular emphasis on the critical mass and structure of the initial conditions that prom ...
The system of one or several quantum wells embedded in a planar semiconductor Fabry-Perot microcavity with distributed Bragg reflectors is studied in the framework of both a semiclassical and a full quantum theory. The results obtained with the two treatme ...
We present a comparison between the semiclassical and the full quantum descriptions of optical properties of quantum wells (QWs) in semiconductor microcavities. The semiclassical theory, which is based on a nonlocal treatment of the optical response of a s ...
This paper provides a review of theoretical and experimental research to date on the constrained steady state solidification of dilute binary alloy matrix composites. Steady state solidification can be experimentally observed in composites which contain a ...
The gibbsian model for surfaces is reformulated in order to account for stress and strain within quasi-ideal crystals and on their surface. Tensor calculus, extensively used, leads to an invariant formalism. The symbols appearing therein are given a physic ...
