FIGURE 7.

State diagram depicting the β-χ boundary between rolling and firm adhesion. (β is the dimensionless reverse reaction rate, and χ is the dimensionless forward reaction rate.) The solid line corresponds to dimensionless parameters in the upper left corner of the figure. Other lines represent boundaries resulting from replacement of an individual parameter with an indicated value. All curves have the same characteristic shape, where β is independent of χ at high χ, but β is proportional to χ at low χ.