Modern air-conditioning duct design in Jaya Supermarket, Petaling Jaya by Teo Seng Woon. 2. Comparison between two stroke and four stroke engine by Ng Chin Aik. 3. Sedimentation process in sewage waste treatment plant by Chian Kian Wai. 4. Title compressor part in refrigeration system by Ho Lit Sin. 5. Design of metal mould for casting and aluminium propeller blade by Loh Sheng Wai. 6. Design of a continuous process compost making machine by Chan Kim Ho. 7. Design and assembly of a lecturing aid to demonstrate the working of an air conditioning system by Tay Kik Leong and Johan Ooi Keng Kee. - TEO SENG WOON (INTI College Malaysia, 1997)