Author/Authors :
Shirneshan، Alireza نويسنده , , Almassi، Morteza نويسنده , , Ghobadian، Barat نويسنده Department of Agricultural Machinery Engineering, Faculty of Agriculture, Tarbiat Modares University, Tehran, I.R. IRAN , , Borghei، Ali Mohammad نويسنده , , Najafi، Gholamhassan نويسنده Deptartment of Mechanics of Agricultural Machinary, Faculty of Agriculture, Tarbiat Modares University, P.O. Box 14115-111, Tehran 14114, Iran ,
