202 research outputs found
Molecular traffic control in single-file networks with fast catalysts
As a model for molecular traffic control (MTC) we investigate the diffusion
of hard core particles in crossed single-file systems. We consider a square
lattice of single-files being connected to external reservoirs. The (vertical)
alpha-channels, carrying only A-particles, are connected to reservoirs with
constant density ra. B-particles move along the (horizontal) beta-channels,
which are connected to reservoirs of density rB. We allow the irreversible
transition A to B at intersections. We are interested in the stationary density
profile in the alpha- and beta- channels, which is the distribution of the
occupation probabilities over the lattice. We calculate the stationary currents
of the system and show that for sufficiently long channels the currents (as a
function of the reservoir densities) show in the limit of large transition
rates non analytic behavior. The results obtained by direct solution of the
master equation are verified by kinetic Monte Carlo simulations.Comment: 11 page
Toward better understanding of the catalytic action of acidic zeolites: investigation in methane and ethane activation and transformation
Selective Nanocatalysis of Organic Transformation by Metals: Concepts, Model Systems, and Instruments
Thermogravimetric and EPR study of the vacuum thermal decomposition of some zinc and copper(II) chromates
Electron spin density distribution in the CO<sup>+</sup>, CO<sub>2</sub><sup>-</sup> and O<sub>2</sub><sup>-</sup> radicals as a function of geometry
- …