Now showing items 41-50 of 52
Perturbed sites and host--guest--host exciton cascade in the biphenyl isotopic mixed crystal phosphorescence
(Elsevier, 1976-03)
An interesting energy cascade is observed in the phosphorescence spectra of 1% biphenyl-h10 in biphenyl-d10 (2-15 K); strongly perturbed host sites, with energy levels below that of the protonated guest, quench the guest ...
Influence of external steady source structure on particle distributions and kinetics of diffusion-limited reactions. II. A + B --> 0 simulations
(Elsevier, 1993-08-15)
Monte Carlo simulations were performed to study the effect of a steady external source structure (i.e., particle correlation and vertical reactions) on diffusion-limited A + B --> 0 reactions at steady state. Several ...
Electron diffraction studies of pulsed cluster beams
(Springer-Verlag, 1989-03)
A pulsed nozzle source has been installed in the electron diffraction unit at the University of Michigan. The pulsed mode of operation is found to offer several important advantages in the investigation of clusters generated ...
Statistical properties of the distance between a trapping center and a uniform density of diffusing particles in two dimensions
(Elsevier, 1990-12-01)
Several analyses of self-segregation properties of reaction-diffusion systems in low dimensions have been based on a simplified model in which an initially uniform concentration of point particles is depleted by reaction ...
Reaction order versus reaction probability for bimolecular steady state reactions: A+A --> A and A+A --> 0 in one dimension
(Elsevier, 1992-11-01)
Reactions of A+A --> product on one-dimensional lattices with steady state input sources are simulated with various local reaction probabilities, P. Among others the reaction order, X, is examined at different P. Our ...
Pattern formation in diffusion-limited reactions
(Kluwer Academic Publishers-Plenum Publishers; Plenum Publishing Corporation ; Springer Science+Business Media, 1989-03)
The conditions for macroscopic segregation of A and B in a steady-state A+B → 0 reaction are studied in infinite systems. Segregation occurs in one and two dimensions and is marginal for d =3. We note the dependence of ...
The diffusion-limited reaction A+B→0 on a fractal substrate
(Kluwer Academic Publishers-Plenum Publishers; Plenum Publishing Corporation ; Springer Science+Business Media, 1991-12)
We show in this paper how the segregation of reactants in the diffusion-limited reaction A+B→0 on a fractal substrate arises. For spectral dimensions d s ⩽ 2 we obtain segregation controlled by the source and/or the intrinsic ...