By using a suitable rescaled form of time-harmonic Maxwell’s equations, we numerically simulate the propagation of a slowly decaying electromagnetic wave, called surface plasmonpolariton, excited along a large conducting sheet, e.g., a single-layer graphene sheet, by an electric Hertzian dipole. For this purpose, we derive a variational formulation that enables a direct numerical treatment of t...

The single molecule detection associated with DNA sequencing has motivated intensive efforts to identify single DNA bases. However, little research has been reported utilizing single-layer hexagonal boron nitride (hBN) for DNA sequencing. Here we employ molecular dynamics simulations to explore pathways for single-strand DNA (ssDNA) sequencing by nanopore on the hBN sheet. We first investigate ...

Hall electron mobility H and sheet concentration ns in AlGaN/GaN heterostructures have been measured from 77 to 1020 K. The effect of the deposited Al2O3 layer is also investigated with varying its thickness. It is found that H decreases monotonously with the temperature T and its dependence is well approximated with the function of H=4.5 10 3 exp −0.004T in the temperatures over 350 K. The fun...

The purpose of this paper is to present an advanced method for welding fine wire to metal sheet, namely laser indirect shock welding (LISW). This process uses silica gel as driver sheet to accelerate the metal sheet toward the wire to obtain metallurgical bonding. A series of experiments were implemented to validate the welding ability of Al sheet/Cu wire and Al sheet/Ag wire. It was found that...

In collaboration with Ametek and Commonwealth Scientific and Industrial Research Organization (CSIRO), Oak Ridge National Laboratory has evaluated three different methods for converting titanium hydride-dehydride (HDH) powder into thin gauge titanium sheet from a roll-compacted preform. Methodologies include: sintering, followed by cold rolling and annealing; direct hot rolling of the rollcompa...

An anticorrosion layer is a significant component that prevents the corrosion process in materials. In this work, nanofiber of poly (methyl methacrylate) composited with few-layer-graphene was prepared as an layer. electrospinning applied to prepare composite on metal substrate at various concentrations few-layer graphene. The physical properties were investigated field-emission scanning electr...