Affiliation: | 1. University of Malaya, Department of Electrical Engineering, Faculty of Engineering, 50603 Kuala Lumpur, Malaysia;2. University Putra Malaysia, Faculty of Engineering, 43400 UPM Serdang, Selangor DE, Malaysia;3. Department of Chemical Engineering, Faculty of Engineering, University of Malaya, Kuala Lumpur Pin – 50603, Malaysia |