List of Articles Safety factors Open Access Article Abstract Page Full-Text 1 - Fatigue Life of Graphite Powder Mixing Electrical Discharge Machining AISI D2 Tool Steel A Al-Khazraji S.A Amin S.M Ali Open Access Article Abstract Page Full-Text 2 - Exploring Effective Factors in Ergonomic System Responsiveness to Managers and Employees’ Requirements: A Case Study of Irankhodro Company Mohammad Mehdi Movahedi Morteza Yousefy Open Access Article Abstract Page Full-Text 3 - A New Analysis of Critical Paths in Mega Projects with Interval Type-2 Fuzzy Activities by Considering Time, Cost, Risk, Quality, and Safety Factors Yahya Dorfeshan Seyed Meysam Mousavi Behnam Vahdani 10.22094/joie.2021.761.1485