diffusion

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diffusion

the process whereby INNOVATIONS are accepted and used by firms and consumers through imitation, licensing agreements or sale of products and patents.
References in periodicals archive ?
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).

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