Geodesic
Generalized one-dimensional model for mass transfer of radon ${}^222$Rn in ground and exhalation it in the surface layer of the atmosphere
Matematičeskoe modelirovanie, Tome 19 (2007) no. 11, pp. 43-50 
R. I. Parovik; I. A. Iljin; P. P. Firstov. Generalized one-dimensional model for mass transfer of radon ${}^222$Rn in ground and exhalation it in the surface layer of the atmosphere. Matematičeskoe modelirovanie, Tome 19 (2007) no. 11, pp. 43-50. http://geodesic.mathdoc.fr/item/MM_2007_19_11_a4/
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     author = {R. I. Parovik and I. A. Iljin and P. P. Firstov},
     title = {Generalized one-dimensional model for mass transfer of radon ${}^222${Rn} in ground and exhalation it in the surface layer of the atmosphere},
     journal = {Matemati\v{c}eskoe modelirovanie},
     pages = {43--50},
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     url = {http://geodesic.mathdoc.fr/item/MM_2007_19_11_a4/}
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Voir la notice de l'article provenant de la source Math-Net.Ru

The paper presents a generalized one-dimensional model for mass transfer of radon ${}^222$Rn-emanation in alluvium deposits and the surface layer of the atmosphere. Analytical solutions for this model were found which meet the boundary conditions of an experiment. Curve distributions of concentration of radon-emanation in the top part in alluvium deposits and the surface layer of the atmosphere were constructed depending on coefficients of effective diffusion and convection speeds transfer.

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