34 research outputs found
Chlorine adsorption on the Cu(111) surface
We investigate the adsorption of chlorine on the Cu(111) surface with full
potential all-electron density functional calculations. Chlorine adsorption at
the fcc hollow sites is slightly preferred over that at the hcp hollow. The
adsorption geometry is in excellent agreement with electron diffraction and ion
scattering data. Adsorption energies and surface diffusion barriers are close
to those deduced from experiment.Comment: to appear in Chem. Phys. Let
FT-IR and Raman vibrational analysis, B3LYP and M06-2X simulations of 4-bromomethyl-6-tert-butyl-2H-chromen-2-one
Oxepinochromenones, Furochromenone, and their Putative Precursors from the Endolichenic Fungus Coniochaeta
XXXX (XXXX) 'Synchronous collaborative systems for distributed virtual environments in Java
Abstract: This paper presents a 3D-distributed virtual environment, which allows for the creation of applications to enable multiple users to collaboratively interact in, and communicate about, a virtual world. This virtual environment is used to primarily support a flight simulator application by providing communications routines and networking synchronisation between the client and the server. Four server-client synchronisation methods were developed and compared. The method of transparent synchronisation with non-blocking I/O has been found to be the best method for maintaining synchronisation among distributed virtual environments using Java. The successful creation of the distributed virtual environment and the positive results collected in the supporting experimental data, leads to the conclusion that Java, with the addition of the non-blocking I/O Java.NIO.channels API and the Java 3D API, can be successfully used to create high-performance distributed 3D-virtual environments