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Subject Areas : Article frome a thesisRoozbeh Riazi 1 , Mahmood Shafaei Bajestan 2 , Heydar-Ali Kashkuli 3
1 - Assistant Prof. of Department of Civil Engineering, Dehdasht Branch, Islamic Azad University, Dehdasht, Iran.
2 - Professor, Shahid Chamran University of Ahvaz, Ahvaz, Iran
3 - Former Professor of Hydraulic Faculty, Shahid Chamran University, Ahwaz, Iran.
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