212818.fig.002a
(a)
212818.fig.002b
(b)
212818.fig.002c
(c)
212818.fig.002d
(d)
Figure 2: The profile of the normalized concentration of phenol substrate versus the normalized distance . The concentrations were computed using (11) when the parameters , and for various values of and . The key to the graph (stacked line) represents (11) and (dotted line) represents the numerical solution. (a) , (b) , (c) , (d) .