List of Articles sajjad pakzad Article 1 - Vibration Analysis of 2-PR(Pa)U- 2-PR(Pa)R New Parallel Mechanism Mehran Mahboubkhah Sajjad Pakzad Morteza Homayoun Sadeghi Mir Mohammad Ettefagh International Journal of Advanced Design and Manufacturing Technology , Issue 43 , Year , Spring 2024 Article 2 - Workspace Analysis of 2-PR(Pa)U- 2-PR(Pa)R New Parallel Mechanism Mehran Mahboubkhah Sajjad Pakzad International Journal of Advanced Design and Manufacturing Technology , Issue 5 , Year , Autumn 2017