List of Articles Open Access Article Abstract Page Full-Text 1 - Study of Seepage Flow and Cutoff Wall Performance of Eyvashan Earth Dam Using Numerical Analysis Mehdi Komasi behrang beiranvand 20.1001.1.20086377.1399.13.47.1.8 Open Access Article Abstract Page Full-Text 2 - Comparison of Discharge Coefficient Between Arced Piano Key Weir and Non-Arc Piano Key Weirs aliakbar karamvand Hooman Hajikandi Ahmad Sharafati 20.1001.1.20086377.1399.13.47.2.9 Open Access Article Abstract Page Full-Text 3 - Determination of Dominant Periods in Rainfall and Runoff Time Series (Case Study: Ardabil Plain) Farnaz Daneshvar Vousoughi 20.1001.1.20086377.1399.13.47.3.0 Open Access Article Abstract Page Full-Text 4 - Development of Simulation-Optimization Model for Eutrophication Management in Surface Water Reservoirs by System Dynamic Approach fariborz masoumi 20.1001.1.20086377.1399.13.47.4.1 Open Access Article Abstract Page Full-Text 5 - Investigating Quantitative Changes of Groundwater in the Semnan Plain Majid Mohammady Amir Hosein Dustmohammadian Mojtaba Amiri Mohammad Kia Kianian 20.1001.1.20086377.1399.13.47.5.2 Open Access Article Abstract Page Full-Text 6 - Water Use Management Effect on the Oshnavieh and Naghadeh Plain’s Surface-Water Resource Using WEAP Model Maryam Mohammadpour 20.1001.1.20086377.1399.13.47.6.3 Open Access Article Abstract Page Full-Text 7 - Evaluation of Whale, Fruit Fly and Cuckoo Search Algorithms in Optimizing Multi-Objective Operation of Golestan Dam Reservoir Based on Multi-Criteria Decision-Making Method Alireza Donyaii Amirpouya Sarraf hassan ahmadi 20.1001.1.20086377.1399.13.47.7.4 Open Access Article Abstract Page Full-Text 8 - Economical Assessment of Different Irrigation Methods Using New and Traditional Energies in Irrigated Wheat Cultivation hormoz asadi Javad Baghani 20.1001.1.20086377.1399.13.47.8.5