Figure 2. The procedure of deriving different S values using different magnifications on the microscope

Figure 2. The procedure of deriving different S values using different magnifications on the microscope: (a) 5× magnification image; (b) 10× magnification image. The scale bar corresponds to S value.

Figure 2. The procedure of deriving different S values using different magnifications on the microscope: (a) 5× magnification image; (b) 10× magnification image. The scale bar corresponds to S value.

Figure 2. The procedure of deriving different S values using different magnifications on the microscope: (a) 5× magnification image; (b) 10× magnification image. The scale bar corresponds to S value.