List of Articles هادی همایی Article 1 - Design Servo System Type and Positioning of Pole Observer Full Rank a Piezoelectric Servo Valve without Integrator مهدیه حامدی هادی همایی خیام صفری Journal of Simulation and Analysis of Novel Technologies in Mechanical Engineering , Issue 4 , Year , Winter 2014 Article 2 - Simulation of Human Foot Mechanism with a Degree of Freedom Motion دامون بختیاریان هادی همایی امین ملکی زاده مراد شهبازی تک آبی Journal of Simulation and Analysis of Novel Technologies in Mechanical Engineering , Issue 5 , Year , Spring 2014