Skjolsvold, "Time dependent chloride diffusion coefficient
: field studies of concrete exposed to marine environment in Norway," in Proceedings of the 2nd International Symposium on Service Life Design for Infrastructures, pp.
Liu et al., "Correlation of the apparent diffusion coefficient
and the standardized uptake value in neoplastic lesions: a meta-analysis," Nuclear Medicine Communications, vol.
where [C.sub.(x,t)] is concentration of [Cl.sup.-] at any depth x in the concrete bulk at time t, [C.sub.s] is the surface concentration, and [D.sub.app] is the apparent diffusion coefficient
. The error correction function, erf, is the Gaussian error function obtained from computer spreadsheets.
In general, two transport parameters can be obtained from diffusion experiments: the apparent diffusion coefficient
[D.sub.app] ([m.sup.2]/s) and the capacity factor [eta]R, being the product of the accessible porosity [eta] (dimensionless) and the retardation factor R (dimensionless).
DWI studies of the breast carried out internationally by Kul et al, Partridge et al and Palle et al have shown significantly lower apparent diffusion coefficient
(ADC) measures for breast carcinomas than for benign breast lesions or normal tissue4-6.
The Apparent Diffusion Coefficient
matches to tumor cellularity and the characteristics of extracellular components.
Determining the effective diffusion coefficient
of water in banana (Prata variety) during osmotic dehydration and its use in predictive models.
Gliomas: Histogram analysis of apparent diffusion coefficient
maps with standard- or high-b-value diffusion-weighted MR imaging--correlation with tumor grade.
Hydrogen diffusion coefficient
in steel matrix generally is very small at low temperatures.
where [tau] is the tortuosity of the saturated material and [D.sup.o.sub.i] is the diffusion coefficient
of the species in free water.
Correlation of apparent diffusion coefficient
with Ki67 proliferation index in grading meningioma.
In addition, drying behavior of the samples, including moisture ratio, drying rate, and diffusion coefficient
, were evaluated and compared (Geankoplis 2003).