List of Articles Mahdi Mollamotalebi Article 1 - Weighted-HR: an Improved Hierarchical Grid Resource Discovery Mohammad mehdi Gilanian sadeghi Mahdi MollaMotalebi Journal of Computer & Robotics , Issue 20 , Year , Summer 2019 Article 2 - Providing a Technique Based on Tree and Super-Peer Structures for Resource Discovery in Grid Environment Behnam Norouzi Mahdi MollaMotalebi Journal of Computer & Robotics , Issue 23 , Year , Winter 2021