1-A. Pakdel, R.Rahmanifard, M. Emami, H. Farhangi, " Effect of Hot Extrusion Temperature on Particle Breakage and Fractography of Silicon Carbide-Reinforced Al-6061 Alloy Composite materials " , Proceedings of 8th International Fracture Conference, 2007, Istanbul, Turkey .

2-A. Amadi, “Application of the New Flow Conditioner for Orifice Plate Flowmeter”, Middle East Mechanical EXPO (Technical Conference and Exhibition), 4 – 7, November 2007, Gulf International Convention Centre, Gulf Hotel, Manama, Kingdom of Bahrain 

 3- Zahedi AR, Rafizadeh M and Ghaffarian SR. Chemical Recycling of Off-grade Poly (ethylene terephthalate) via Glycolysis Method. The 8th International Seminar on Polymer Science and Technology. Tehran, Iran 2007.