IIUM Engineering Journal, Volume 16 Issue 1 2015 contains of: - STUDIES ON THE EFFECT OF ARTIFICIAL AGEING HARDNESS ON TENSILE PROPERTIES AND IMPACT STRENGTH OF AL-6SI-0.5MG-2NI ALLOY - Abul Hossain, Abu Syedwais Kurny - AEROSTATIC AND AERODYNAMIC MODULES OF A HYBRID BUOYANT AIRCRAFT: AN ANALYTICAL APPROACH - Anwar Ul Haque, WAQAR ASRAR, ASHRAF A. OMAR, ERWIN SULAEMAN, MOHAMED J.S. ALI - O…