List of Articles Open Access Article Abstract Page Full-Text 1 - Improving of efficient control scheme in Switched-Capacitor DC-DC Converters for ultra-low power applications Hamid Tavana Abdolrasool Ghasemi Najmeh Cheraghi Shirazi Open Access Article Abstract Page Full-Text 2 - Automatic design of a CMOS operational amplifier using a genetic algorithm Ali Jafari Alireza Malahzadeh Maryam Zekri Open Access Article Abstract Page Full-Text 3 - Detection of voltage instability in load buses using ZL / ZS and Indicator indices Amir Olfati Open Access Article Abstract Page Full-Text 4 - Analysis of the phenomenon of scattering in polymer optical fibers Hani shahnazari Hadi Shahnazarisani Open Access Article Abstract Page Full-Text 5 - Quadruple analog multiplier with high-frequency response Hamid Bashi Seyed Hadi Mosavi Abolfazl Amiri Open Access Article Abstract Page Full-Text 6 - Introducing a new query database optimization method Peyman Arebi Amir Masoud Bidgoli Serajodin Katebi