942018.fig.0017a
(a)
942018.fig.0017b
(b)
942018.fig.0017c
(c)
942018.fig.0017d
(d)
Figure 17: D40-B SEM image of each scale (a) the first scale (34 μm), (b) the second scale (23 μm), (c) the third scale (13 μm), and (d) the forth scale (6 μm).