483492.fig.008a
(a)
483492.fig.008b
(b)
483492.fig.008c
(c)
483492.fig.008d
(d)
Figure 8: (The anti-kink wave is bifurcated from the bell-shape solitary wave). The varying process for the graph of when , , , and . Where , , , and (a) . (b) . (c) . (d) .