514851.fig.0012a
(a)
514851.fig.0012b
(b)
514851.fig.0012c
(c)
514851.fig.0012d
(d)
Figure 12: (a) The initial low temperature segment, (b) the first intermediate process, (c) the second intermediate process, and (d) the third intermediate process. (The horizontal axis and vertical axis are, respectively, -DTG and -DTG, the colour indicated the dimension).