List of Articles Open Access Article Abstract Page Full-Text 1 - Conceptual design of the inlet flow preheat system to the nozzle test equipment of a turbine engine Behrooz Shahriari Hamid Farrokhfal Mohammad Reza Nazari Open Access Article Abstract Page Full-Text 2 - Small signal stability analysis of dynamic behavior of gas turbine power plant with secondary control loop in electric power system Ghazanfar Shahgholian Majid Moazaami Mohammad Amin Honarvar Open Access Article Abstract Page Full-Text 3 - Simulation of chromium, nickel and lead removal from aqueous environment using polypyrrol and its composites Arash Shabani Majid Riahi Samani Davood Toghraie Open Access Article Abstract Page Full-Text 4 - Experimental study of turbulent wind flow over arc roofs: an ancient simple way to low energy buildings Farhad Raeiszadeh Mehdi Jahangiri Open Access Article Abstract Page Full-Text 5 - Investigating the Effects of Geometry and Material on Acoustic Characteristics of Hospital Rooms Mehdi Salehi Rozita Salehi Open Access Article Abstract Page Full-Text 6 - Investigating the effect of post-weld heat treatment on the corrosion properties of the explosive welded three-layer joint of Cu/Al/Cu Heydar Ali Zamani Mohammad Reza Khanzadeh Ali Bakhtiari Hossein Paydar