/ http://www.slideshare.net/images/logo.gif / 際際滷Share feed for 際際滷shows by User: manikoohsar https://public.slidesharecdn.com/v2/images/profile-picture.png A.A.Koohsar MSc in Mechanical Engineering B.A from Water and Electricity Industry University M.A from Shahrud University of Technology Employed in some Islamic Azad University and Payam e Noor University as a lecturer