We investigate the effect of cooperative interactions on the asymmetric exclusion process, which causes the particle velocity to be an increasing function of the density. Within a hydrodynamic theory, initial density upsteps and downsteps can evolve into: (a) shock waves, (b) continuous compression or rarefaction waves, or (c) a mixture of shocks and continuous waves. These unusual phenomena ar...

ing away from the descriptive adequacy of this representation (in English, verbs do not agree in gender with their subjects), we can see how the feature structure above has structure sharing: the paths X2|inflection and X2|subject|inflection converge at the same node and from this node stems a substructure representing the inflectional properties shared by noun and verb. It is important to insi...

High temperature nanoindentation experiments are conducted to assess the activation enthalpy for deformation of nanocrystalline Ni-W alloys, for grain sizes between 3 and 80 nm. Thermal softening becomes less pronounced at finer grain sizes, and the activation enthalpy has an apparent inflection at a grain size near ~10-20 nm, in the vicinity the Hall-Petch breakdown. This inflection is related...

We show that all so-called C-curves are affine images of trochoids or sine curves and use this relation to investigate the occurrence of inflection points, cusps, and loops. The results are summarized in a shape diagram of C-Bézier curves, which is useful when using C-Bézier curves for curve and surface modeling.  2003 Elsevier B.V. All rights reserved.

The acceptance-rejection algorithm is often used to sample from non-standard distributions. For this algorithm to be efficient, however, the user has to create a hat function that majorizes and closely matches the density of the distribution to be sampled from. There are many methods for automatically creating such hat functions, but these methods require that the user transforms the density so...

Chinese inflection differs from that of European languages in that it is fully parsable in the orthography, which raises the possibility that Chinese inflected forms may not show the surface frequency effects found in other languages. Five lexical decision experiments were conducted to examine this issue. They showed that surface frequency did indeed affect reaction times, independent of base f...