List of Articles Design optimization Open Access Article Abstract Page Full-Text 1 - Reliability-Based Robust Multi-Objective Optimization of Friction Stir Welding Lap Joint AA1100 Plates E Sarikhani A Khalkhali 10.22034/jsm.2019.1877986.1493 Open Access Article Abstract Page Full-Text 2 - Improving Power Density of Piezoelectric Vibration-Based Energy Scavengers R Hosseini O Zargar M Hamedi Open Access Article Abstract Page Full-Text 3 - Design of a Two-Stage Operational Amplifier Using Artificial Neural Network Alireza Pourkhalili Sayed Mohammad Ali Zanjani Open Access Article Abstract Page Full-Text 4 - Hysteretic Dissipators Made Of Aluminium And Steel: Optimal Design And Preliminary Characterization Tests Mariella Diaferio Dora Foti Riccardo Nobile Open Access Article Abstract Page Full-Text 5 - Design Optimization for Total Volume Reduction of Permanent Magnet Synchronous Generators Reza Ilka Yousef Alinejad-Beromi Hossein Asgharpour-Alamdari Hamid Yaghobi