Anomalous diffusion models were considered for random 1-dimensional cluster and comb structures with finite fingers under various boundary conditions. The effect of an electric field upon anomalous diffusion was examined. Cases which involved various percolation radii were compared. The comb-structure model, with periodic boundary conditions, was shown to be useful for studying various types of anomalous diffusion. A new diffusion type, in which the average rate was higher than the typical rate, was predicted.

Anomalous Diffusion in a Model with a Variable Percolation Radius. M.V.Martynenko, V.N.Udodov, A.I.Potekaev: Russian Physics Journal, 2000, 43[10], 867-70