Sorption, diffusion, and desorption of alachlor in oxidized and reduced smectite membranes

Environmental Science and Technology34173574-3578ESTH

Supported clay membrane: A new way to characterize water and ion transport in clays

10.1016/S1093-0191(00)00051-4Advances in Environmental Research52197-201AERD

D2EHPA based strontium removal from strongly alkaline nuclear waste

10.1016/S0011-9164(02)00326-0Desalination1441-3267-272DSLN

The Influence of External Real and White Noise on the LOTKA‐VOLTERRA Model

The behaviour of a marginally stable predator‐prey system, the LOTKA‐VOLTERRA model is analyzed under the influence of parameter fluctuations. The cases of white and real noise are studied separately. It is shown that for white noise no stationary solution exists, but even for time tending to infinity explosion occurs only with zero probability. In the case of real noise the class of noise processes that permit a stationary solution is characterized by their spectral density. It turns out that this class consists of all stationary processes that do not contain the eigenfrequencies of the LOTKA‐VOLTERRA system. It is shown that for all other real noise processes a resonance phenomenon occurs and the solutions grow unboundedly. Copyright © 1979 WILEY‐VCH Verlag GmbH & Co. KGaASCOPUS: ar.jFLWNAinfo:eu-repo/semantics/publishe