1. Senior Scientist, Snowy Mountains Engineering Corporation (SMEC), Sydney, NSW 2060, Australia.
2. Professor, Multidisciplinary Research Scientist and Engineer, and Global Expert, Sustainable Development Research Institute, Bethlehem, West Bank, The State of Palestine (corresponding author).
3. Researcher and Engineer, Faculty of Engineering, Dept. of Biological and Agricultural Engineering, Univ. Putra Malaysia, 43400 Serdang, Selangor Darul Ehsan, Malaysia.