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. 2008 Nov 13;129(18):184706. doi: 10.1063/1.3010709

Figure 2.

Figure 2

The ratio Deff(r)∕D(r) as a function of the dimensionless particle radius, x=ra, for the case of dead ends with no cavities, Vcav=0. The curves from top to bottom correspond to α=0,2,5,10,20. All curves merge into one, Deff(r)∕D(r)=1, at x>1 since Deff(r)=D(r) at r>a.