The quasi-one-dimensional model of isotope loading into a material relates the loading flux, the electric order/thermal disorder ratio, and other physical issues. The theoretical nonequilibrium deuteron/palladium ratio at the surface of a palladium electrode, previously shown to depend on the loading flux ratio, is corrected both for intrapalladial diffusion of the loaded deuterons and for secondary changes in electrode volume, possibly explaining the often considerable time elapsed until the onset of the desired reactions.