SEARCH Articles Figures Tables Concentrated Force at a Point in an Infinite Solid Medium Diffusion in a Semi-Infinite Solid Media Diffusion into a Semi-Infinite Medium Diffusion semi-infinite medium Elementary Source in Infinite Media Infinite Homogeneous Multiplying Media Infinite-medium Criticality Problem Infinite-medium model Instantaneous Localized Sources in Infinite Media Rotating Shaft in Infinite Media Semi-infinite media Semi-infinite-media assumption Slowing-down Process in the Infinite Medium The infinite medium an arbitrary initial distribution The infinite medium with a layer of uniform initial concentration The semi-infinite medium with constant surface concentration Velocity distribution infinite medium