a
RMIT University, School of Electrical & Computer Engineering, Melbourne, Australia
E-mail: sumeet.walia@rmit.edu.au
;
Fax: +613 9925 2007
;
Tel: +613 99253254
b
University of New South Wales at Australian Defence Force Academy, School of Physical, Environmental and Mathematical Sciences, Canberra, Australia
c
RMIT University, School of Applied Sciences, Applied Chemistry, Melbourne, Australia
d
Commonwealth Scientific Industrial Research Organisation (CSIRO), Material Science and Engineering Division, Melbourne, Australia