Powder Technology · 1977 · 16 citations · 4 references
EngineeringChemical EngineeringMaterials ScienceChemical KineticsTransport PhenomenaDiffusion In SolidsGas TransferMass TransferMass TransportPowder TechnologyChemical DiffusionDiffusion In GasesGas Diffusion ModelsKnudsen DiffusionKnudsen NumberPowder Flow Measurement
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On Gaseous Self-Diffusion in Long Capillary Tubes
William G. Pollard, R. D. Present · Physical Review · 1948 · 529 citations
Permeametry in the Knudsen-flow regime
J. F. Brock, Clyde Orr · Analytical Chemistry · 1972 · 11 citations