In this paper, BaLa‌xGdxFe12-2xO19 (x=0.2, 0.4, 0.6 and 0.8) were synthesized via sol-gel auto-combustion method. Fourier transform infrared spectroscopy (FTIR) of samples was represented that the bands at 400 and 500 cm-1 were related to the formation of hexaferrite phase. The (x-ray diffraction) XRD patterns were matched exactly with the structure of barium hexaferrite. (Field emission scanni...

Reflection is considered to be an important part of the learning process, especially when learning from experience, developing the skills of professional practice and for the development of meta-cognitive skills which are said to enhance learning. Recently there has been increased exploration into the ways technology can be used to support reflection in these areas (Loh et al., 1997; Seale, 199...