List of Articles Optimization Open Access Article Abstract Page Full-Text 1 - Optimization of Ankle-Foot Prosthesis with Active Alignment by Passive Elements فرحناز رحمانی حسن ظهور Open Access Article Abstract Page Full-Text 2 - Exergetic Optimization of Designing Parameters for Heat Recovery Steam Generators Through Direct Search Method علی بهبهانی نیا رسول بهرام پوری عبدالله شادآرام علیرضا فرشاد Open Access Article Abstract Page Full-Text 3 - Rice Straw Ash-A Novel Source of SilicaNanoparticles حمید خورسند نسیم کیایی امیرحسین معصوم پرست Open Access Article Abstract Page Full-Text 4 - Exergy Analysis of Counter Flow Wet Cooling Tower in Khuzestan Steel Co نوید بزرگان Open Access Article Abstract Page Full-Text 5 - Using Gray Relational Analysis and Taguchi Technique in Solving Multi-objective Problems for Turning Operation of Austenitic Stainless Steel م. آزادی مقدم ف. کلاهان م. حسینی دوغ آبادی Open Access Article Abstract Page Full-Text 6 - Sustainable production and future trend بهنام خسروزاده