List of Articles relative roughness Open Access Article Abstract Page Full-Text 1 - Laboratory Study of the Effects of grain size and Boundary Reynolds Number on Displacement Number and Stability Number Against Relative Roughness on Movement Threshold in River Bed Loads Alireza Zamani Nouri Jalal Soltani parishan Hossein Hassanpour Darvishi Open Access Article Abstract Page Full-Text 2 - Analytical Study of the Bed Roughness and Entrainment Ratio of Saline Density Currents on Hydraulic Jump Nader Barahmand Open Access Article Abstract Page Full-Text 3 - Using the Incomplete Self-Similarity Method for Estimation of the Conjugate Depth Ratio of Density Jumps on Smooth and Rough Beds N. Barahmand