List of Articles Efficiency. Open Access Article Abstract Page Full-Text 1 - A New Power Control Algorithm in MMSE Receiver for D2D Underlying Massive MIMO System Faezeh Heydari Saeed Ghazi-Maghrebi Ali Shahzadi Mohammad Jalal Rastegar Fatemi 10.52547/jist.9.34.141 Open Access Article Abstract Page Full-Text 2 - Determining and prioritizing the key factors of managers of heavy machinery and equipment Mojtaba Moradi zainab ayati MohammadAli Mirzazadeh Open Access Article Abstract Page Full-Text 3 - Optimally DBS Placement In 6G Communication Networks Using Improved Gray Wolf Optimization Algorithm to Enhance Network Energy Efficiency Hussein Shakir Diwan Al-Khulaifawi Mahdi Nangir