List of Articles Open Access Article Abstract Page Full-Text 1 - perimental Study on the Performance of a New Type Solar Air Heater with Cross-Corrugated Surface on Different Environmental Conditions نادر رهبر محمد جوادی نیا ایزدی پژمان ظهوریان ایزدی Open Access Article Abstract Page Full-Text 2 - Numerical Investigation of heat transfer in fire heater tube of the gas unit of Tehran Refinery احد عابدینی علی حیدری Open Access Article Abstract Page Full-Text 3 - Simulation of clearance effect on LDR in stainless steel deep drawing Ali Fathi Jokandan Mehrdad Ozve Aminian Open Access Article Abstract Page Full-Text 4 - Reduction of vibrations amplitude using ribs in the welded steel structure in the cross beam of a gantry milling machine mahdi armaninejad Mohammad Jafar Ostad-Ahmad-Ghorabi Open Access Article Abstract Page Full-Text 5 - Fault Detection of Cylinder- head automotive Using Mechanical Waves and Intelligent Techniques Mojtaba Doustmohammadi Morteza Mohammadzaheri Ehsan Jamshidi Open Access Article Abstract Page Full-Text 6 - Accuracy assessment of Ro 3rd order and CUSP dissipation schemes to analyze transonic flow around pitching airfoil using structured spring network Ali Heydari Open Access Article Abstract Page Full-Text 7 - Investigation the effect of diameter and temperature on mechanical properties of single-walled boron nitride nanotubes by molecular dynamics simulation Mohammad reza Mostafaei Abdolhosein Fereidoon Masoud Darvish ganji