The discovery of carbon nanotubes implied that one-dimensional models of theoretical physics can be tested in the laboratory. This talk describes a series of studies concerning gases within, outside and between nanotubes and bundles of carbon nanotubes (similar to spaghetti in a box) and other regular porous materials. The results, surprising in some cases, yield behavior corresponding to 1, 2,...

Human beings are strange animals. Although evolutionary theory has brilliantly accounted for the features we share with other creatures—from the genetic code that directs the construction of our bodies to the details of how our muscles and neurons work—we still stand out in countless ways. Our brains are exceptionally large, we alone have truly grammatical language, and we alone compose symphon...

We describe a major survey of the Milky Way halo designed to test for kinematic substructure caused by destruction of accreted satellites. We use the Washington photometric system to identify halo stars efficiently for spectroscopic followup. Tracers include halo giants (detectable out to more than 100 kpc), blue horizontal branch stars, halo stars near the main sequence turnoff, and the “blue ...

We propose a new algorithm, called SPAGHETtI, for static scheduling tasks on an unbounded heterogeneous resources where resources belongs to di↵erent architecture (e.g. CPU or GPU). We show that this algorithm is optimal in complexity O(|E||A| + |V ||A|), where |E| is the number of edges, |V | the number of vertices of the scheduled DAG and |A| the number of architectures – usually a small valu...

This study presents a novel peridynamic model for geometrically nonlinear analysis of three-dimensional beam structures. The formulations strain energy densities is obtained by using Total Lagrange formulation. structures are based on the principle virtual displacements. capability proposed demonstrated considering large deformations straight beams and curved subjected to different loading cond...