Submitted for the MAR09 Meeting of The American Physical Society Rashba spin-orbit interactions in zigzag graphene nano-ribbons1 MAHDI ZAREA, Ohio Univesity, NANCY SANDLER, Ohio University — The crystalline structure of graphene can be described in terms of a pseudo-spin degree of freedom and spinor wavefunctions. This characteristic has important physical consequences not observed in normal se...

Crowd-sourced biodiversity databases provide easy access to data and images for ecological education research. One concern with using publicly sourced databases; however, is the quality of their images, taxonomic descriptions, geographical metadata. The method presented in this paper attempts address a suite pipelines evaluate consistency, how well geo-tagging fits known distributions, image cr...

The idea that the whole can represent more than the sum of the parts is of fundamental importance in science, as illustrated in complexity theory: the emergent behavior of many complex systems cannot simply be derived from their individual components. In quantum mechanics, this phenomenon appears in a particularly subtle form: certain physical quantities, relevant to the description of quantum ...

Abstract Boron nitride nanotubes (BNNTs) will be one of the most important materials this century. Recent synthetic advances have made BNNTs viable candidates for advanced multifunctional materials. Like carbon and graphene, h-BN extraordinary physical properties. Unlike CNTs, a wideband gap; they are piezoelectric, neutron radiation shielding capability, can withstand degradation up to 1000 °C...

An optimization problem for systems that are subject to perturbations where both state observations and control actions are impulsive is here addressed. The dynamics equation is given by a differential inclusion ( ) ( , ( )) x t F t x t ∈ and the optimal strategy is the minimizer of the worst viable perturbation process (minimax). Such formulation is appropriate when noise is barely known but l...