Permeability of well graded soils

Well-graded families of relations 1

Any semiorder on a finite set can be reached from any other semiorder on the same set by elementary steps consisting either in the addition or in the removal of a single ordered pair, in such a way that only semiorders are generated at every step, and also that the number of steps equals the distance between the two semiorders. Similar results are also established for other families of relation...

Well-graded spaces of valued sets

Well-graded spaces of valued sets and relations are introduced and their properties are investigated. In particular, it is shown that the space of valued partial orders on a 0nite set is well-graded. This is a generalization of a well-known result of Bogart (J. Math. Soc. 3 (1973) 49). Motivation for these studies comes from media theory (Falmagne, J. Math. Psych. 41 (2) (1997) 129; Discrete Ap...

Persulfate Transport in Two Low-permeability Soils

by MARISSA C. MERKER, M.S.C.E. Washington State University August 2010 Chair: Richard J. Watts Persulfate is a promising in situ chemical oxidation treatment (ISCO) for the remediation of low-permeability strata because it is more stable in the subsurface and can rapidly degrade recalcitrant contaminants compared to other technologies. ISCO technologies include catalyzed hydrogen peroxide propa...

Filtration of broadly graded soils: the reduced PSD method

The Permeability of Glomerular Capillaries to Graded Dextrans

Graded dextrans have been used as tracers to identify the primary permeability barrier(s) to macromolecules among the structural elements (endothelium, mesangium, basement membrane, epithelium) of the glomerular capillary wall. Three narrow-range fractions of specified molecular weights and Einstein-Stokes radii (ESR) were prepared by gel filtration: (a) 32,000 mol wt, ESR = 38 A; (b) 62,000 mo...