Now showing items 11-18 of 18
New solutions to the fragmentation equation
(IOP Publishing Ltd, 1991-06-21)
A new general class of exact, explicit scaling solutions to the fragmentation equation is given. This class is described by a breakage rate a(x)=xlambda and the daughter distribution function yb(x mod y)=a gamma (xy)gamma ...
High-resolution nonlinear laser spectroscopy of exciton relaxation in GaAs quantum wells
(Springer-Verlag, 1991-12)
This paper describes measurements of exciton relaxation in GaAs/AlGaAs quantum well structures based on high resolution nonlinear laser spectroscopy. The nonlinear optical measurements show that low energy excitons can be ...
Flux to a trap
(Kluwer Academic Publishers-Plenum Publishers; Plenum Publishing Corporation ; Springer Science+Business Media, 1991-12)
The flux of particles to a single trap is investigated for two systems: (1) particles in 3D space which jump a fixed step length l (the Rayleigh flight) and are adsorbed by a spherical surface, and (2) particles on a ...
Cellular automaton version of the AB2 reaction model obeying proper stoichiometry
(IOP Publishing Ltd, 1991-08-07)
The cellular-automaton (CA) AB2 surface-reaction model of Chopard and Droz (1988) is modified so that the proper stoichiometry in both the B2 adsorption and the AB reaction is followed. Simulations show that the first-order ...
On Cardy's formula for the critical crossing probability in 2D percolation
(IOP Publishing Ltd, 1995-03-07)
Cardy's formula for the probability pi nu (r) of crossing a rectangular critical percolation system in the vertical direction, with free boundaries on the two sides, is written explicitly in terms of the aspect ratio ...
Gas Sensing Characteristics of Ultrathin TiO 2− x Films Investigated with XPS, TPD and In Situ Resistance Measurements
(John Wiley & Sons, Ltd., 1997-02)
Ultrathin Pt/TiO 2− x sensing films are characterized to investigate the adsorption and reaction processes that cause resistance changes. The films are prepared by oxidizing films with a nominal thickness of 65 Å Pt ...
Proof of crossing formula for 2D percolation
(IOP Publishing Ltd, 1995-11-21)
The author`s recently conjectured expression (ibid., vol. 28, p. 1249, 1995) for Cardy`s (1992) crossing formula in 2D percolation is rewritten in terms of theta and elliptic functions and verified explicitly. Exact results ...
Universality of the excess number of clusters and the crossing probability function in three-dimensional percolation
(IOP Publishing Ltd, 1998-10-09)
Extensive Monte Carlo simulations were performed to evaluate the excess number of clusters and the crossing probability function for three-dimensional percolation on the simple cubic (s.c.), face-centred cubic (f.c.c.), ...