فهرست مقالات Beta nanozeolite دسترسی آزاد مقاله صفحه چکیده متن کامل 1 - Effect of acidity and physical properties of nanozeolite catalyst on hydrocracking of vacuum gas oil Mina Hadi Hamid Reza Bozorgzadeh Hamid Reza Aghabozorg Mohammad Reza Ghasemi