[1] Univ Putra Malaysia, Dept Mech & Mfg Engn, Serdang 43400, Selangor, Malaysia
[2] Univ Putra Malaysia, Dept Biol & Agr Engn, Serdang 43400, Selangor, Malaysia
[3] Univ Putra Malaysia, Inst Trop Forestry & Forest Prod, Fac Forestry, Upm Serdang 43400, Selangor, Malaysia
[4] Agensi Nuklear Malaysia, Radiat Proc Div, Kajang 40300, Selangor, Malaysia