VOL. 7 NUM. 1 YEAR 2014 ISSN 1985-6571 Study on Tropical Weathering Effects on Epoxy Composite Materials from an ALUDRA TUAV Chan Keng Sam, Nor Azlan Sarjo, Wan Fadilah Wan Abdullah, Syed Roslee Sayd Bakar, Mohd Sal Salsidu & Zainol Abidin Awang Sa 1 - 8 Evaluation of the Effectiveness of Titanium Dioxide (TiO 2 ) Self-Cleaning Coating for Increased Protection Against CBRN Incidents in Critical Infrastructures Alessandro Sassolini, Andrea Malizia, Fabrizio D’Amico, Mariachiara Carestia, Daniele Di Giovanni, Orlando Cenciarelli, Carlo Bellecci & Pasquale Gaudio 9 - 17 Simulation of Caesium-137 ( 137 Cs) Local Diffusion as a Consequence of the Chernobyl Accident Using Hotspot Ilaria Cacciotti, Pio Ciro Aspetti, Orlando Cenciarelli, Mariachiara Carestia, Daniele Di Giovanni, Andrea Malizia, Fabrizio D'Amico, Alessandro Sassolini, Carlo Bellecci & Pasquale Gaudio 18 - 26 Failure Analysis of a Diesel Main Engine’s Valve Stems Nik Hassanuddin Nik Yusoff, Hasril Nain, Mahdi Che Isa & Irwan Mohd Nor 27 - 33 Failure Analysis of a Main Wheel Brake Assembly of a Royal Malaysian Armed Forces (RMAF) Aircraft Syed Roslee Sayd Bakar & Mohd Yazid Ahmad 34 - 39 Fatigue Life Prediction of AA 7075-T6 Under Spectrum Loading Using Finite Element Analysis (FEA) Simulation Fadzli Ibrahim, Masliza Mustafar, Shamsiah Kalil, Mohd Yazid Ahmad & Mohd Norhasani Abdullah Sani 40 - 48 Analysis of Spatial Significance of Mountain Objects Extracted from Multiscale Digital Elevation Models Dinesh Sathyamoorthy 49 - 61 Current Innovation Practices in Malaysian Government and Corporate Organisations: Case Studies on STRIDE and Celcom Axiata Berhad Khairul Manami Kamarudin, Siti Rozanna Yusuf, Norfazzila Omar, Mohd Salahuddin Mohd Basri & Nur Hidayah Ariffin 62 - 72 SCIENCE & TECHNOLOGY RESEARCH INSTITUTE FOR DEFENCE