diffusion area

diffusion area

[də′fyü·zhən ‚er·ē·ə]
(physics)
One-sixth of the mean-square displacement between the appearance and disappearance of a subatomic particle of a given type.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
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The traditional steel floral tube reinforcement technology has several issues, including the slurry permeating through the bottom hole, the small diffusion area of slurry, and the imperfection of soil consolidation between piles.
In both methods, the diffusion area reflects TAC in an organism, and larger diffusion area represents better TAC.
Xiang [24] distinguished the region of the convection-diffusion coupling and diffusion area and solved the equation of the convection-diffusion coupling by using the finite difference method.
Moreover, arterial spin labeling (ASL) is a noninvasive alternative for imaging whole-brain cerebral perfusion that uses radiofrequency pulses instead of gadolinium to label inflowing arterial blood.[sup][4] Recent studies demonstrate that ASL can be used to quantify cerebral blood flow (CBF) values in the ischemic core and areas with perfusion/diffusion mismatch in patients with AIS.[sup][5],[6],[7],[8] In this study, ischemic penumbra was defined by decreased ASL CBF area, except in the restricted diffusion area.
In the analysis performed here the uncertainty of the effective cross-sectional diffusion area [A.sub.e] was identified as the main contributor to overall uncertainty.
And the reality of space, the network information transmission in space has much more widely diffusion area and spread much shorter, this means network dimension-force can be convenient.
Diffusion studies through rabbit skin and polydimethylsiloxane membrane Diffusion studies across rabbit skin and polydimethylsiloxane membrane were performed using Franz diffusion cells (FDC, made of Germany at SOP, London) that have a receptor phase volume of ~4.5 mL and a diffusion area of ~0.85cm2.
The displacements of the upper and lower surfaces of the fissure at a particular moment can be calculated through the finite element model that was set up in the entire grout diffusion area by the composite element method containing the fissure network [14].
Diffusion studies across rabbit skin and silicone membrane were performed using Franz-type diffusion cells (made of Germany at SOP, London) that have a receptor phase of ~4.5 mL and a diffusion area of ~0.85cm2.
The main technical features include a compact design, flexible diffusion area suitable for percutaneous absorption and permeation studies, all glass and Teflon construction, and a sample collection mechanism.
3 shows the percentage release of SA through cellulose acetate membrane as a function of applied current amplitude (and hence current density, as the diffusion area is unchanged).