483492.fig.007a
(a)
483492.fig.007b
(b)
483492.fig.007c
(c)
483492.fig.007d
(d)
Figure 7: (The 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) .