Funding for this research was provided by:
the Fundamental Research Grant Scheme (FP010-2014A)
Postgraduate Research Grant (PG011-2015A)
Advanced Shock and Vibration Research (ASVR) Group of University of Malaya, Malaya
Article History
Received: 15 August 2017
Accepted: 14 September 2017
First Online: 9 June 2018