๐”– Bobbio Scriptorium
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Diffusionszelle zur Bestimmung effektiver Diffusionskoeffizienten

โœ Scribed by Marc New; Dr. Alfons Baiker; Prof. Dr. Werner Richarz


Publisher
John Wiley and Sons
Year
1979
Tongue
German
Weight
346 KB
Volume
51
Category
Article
ISSN
0009-286X

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๐Ÿ“œ SIMILAR VOLUMES


Optische Methode zur Bestimmung von Diff
โœ A. van Tets; Hs. H. Gรผnthard ๐Ÿ“‚ Article ๐Ÿ“… 1961 ๐Ÿ› John Wiley and Sons ๐ŸŒ German โš– 419 KB ๐Ÿ‘ 1 views

A method for determination of surface and bulk diffusion coefficients from measurements of optical density on thin slabs is discussed. In principle the spectral absorption of a substance diffusing from gaseous phase into the slab is measured as a function of time. The limitations of the method and t

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## Abstract In a diffusion experiment a radioactively tagged substance diffuses into and through a membrane and is observed with a G. M. counter. The time lag __L__ associated with the approach to the steady counting rate is calculated. Although the diffusion problem has rather general boundary con

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From sorption experiments as described by A. VAN TETS and Hs. H. GรœNTHARD a time lag can be determined which is directly related to the diffusion coefficients __D__ and ๐”‡ of the system investigated.