Now showing items 1-10 of 52
Fractal chemical kinetics: Reacting random walkers
(Kluwer Academic Publishers-Plenum Publishers; Plenum Publishing Corporation ; Springer Science+Business Media, 1984-09)
Computer simulations on binary reactions of random walkers ( A + A → A ) on fractal spaces bear out a recent conjecture: ( ρ −1 − ρ 0 −1 ) ∞ t f , where ρ is the instantaneous walker density and ρ 0 the initial one, and f ...
Rate processes on fractals: Theory, simulations, and experiments
(Kluwer Academic Publishers-Plenum Publishers; Plenum Publishing Corporation ; Springer Science+Business Media, 1986-01)
Heterogeneous kinetics are shown to differ drastically from homogeneous kinetics. For the elementary reaction A + A → products we show that the diffusion-limited reaction rate is proportional to t − h[A] 2 or to [A] x , ...
Dynamics of energy transport in ternary molecular solids. I. Naphthalene steady state fluorescence
(Elsevier, 1981-05-01)
Energy transport experiments were conducted at liquid helium temperatures on ternary single crystals (host/guest/ supertrap, i.e. C10H8/C10D8/betamethylnaphthalene-d10) at guest concentrations of 50--99% and very low (about ...
Percolation and cluster distribution. III. Algorithms for the site-bond problem
(Kluwer Academic Publishers-Plenum Publishers; Plenum Publishing Corporation ; Springer Science+Business Media, 1979-11)
Algorithms for estimating the percolation probabilities and cluster size distribution are given in the framework of a Monte Carlo simulation for disordered lattices for the generalized site-bond problem. The site-bond ...
Nearest-neighbor distances in diffusion-controlled reactions modelled by a single mobile trap
(Elsevier, 1991-02-15)
We consider a system consisting of an infinite number of identical particles on a lattice initially uniformly distributed, which diffuese in the presence of a singke mobile trap and ask for the time-dependent behavior of ...
An optically detected magnetic resonance study of Mn4+ in Cs2GeF6 and K2GeF6
(Elsevier, 1988-11-15)
The photoexcitation and photoluminescence spectra (2E 4A2) of MnF62- diluted in Cs2GeF6 and K2GeF6 host lattices have been recorded at liquid helium temperature. The manganese coordination geometry is Oh in Cs2GeF6 and ...
Molecular dynamics simulations of the freezing of gold nanoparticles
(EDP Sciences, Springer-Verlag, Società Italiana di Fisica, 2001-10)
A set of molten gold clusters, each with 1157 gold atoms, was studied by molecular dynamics simulations as the clusters underwent freezing at three different temperatures. Most of the clusters attained an icosahedral ...
Bimolecular reaction A + B --> 0 at steady state on fractals: Anomalous rate law and reactant self-organization
(Elsevier, 1990-10-01)
This paper is a theoretical investigation of the diffusion limited reaction A + B --> 0 at steady state and on fractal structures. We propose an extension of a scheme previously applied to Euclidean spaces, using the ...
Analysis of the ESR spectrum of manganese (II) in the layered compound Cd2P2Se6
(Elsevier, 1986-07-01)
The Q-band and X-band ESR spectra of Mn2+ in the layered compound Cd2P2Se6 are reported. The Mn2+ is in a trigonal environment coordinated to six selenium atoms. The parameters of the spin hamiltonian have been determined ...
Correlated hopping model for singlet exciton transport in lightly dohttp://www.sciencedirect.com/science/article/B6TFM-44DTGD2-KF/2/d498b4c6ab57aaaa33fd7a30ddc18badped naphthalene crystals
(Elsevier, 1980-09-15)
A formalism of correlated lattice random walk is applied to the singlet exciton transport in naphthalene. Fluorescence experiments on excitation migration in naphthalene crystals (C10H8 and C10D8), lightly doped chemically ...