List of Articles Settling time Open Access Article Abstract Page Full-Text 1 - Δ∑ Fractional-N Synthesizer for GSM-E-900 Frequency Standard Alireza Bagherzadeh Mostafa Yargholi Open Access Article Abstract Page Full-Text 2 - Improvement of Left Ventricular Assist Device (LVAD) in Artificial Heart Majid Neshat Yazdi Reihaneh Kardehi Moghaddam