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    B-Jump: Roller length, sequent depth, and relative energy loss using artificial neural networks

    , Article Journal of Hydraulic Research ; Volume 45, Issue 4 , 2007 , Pages 529-537 ; 00221686 (ISSN) Yazdandoost, F. Y ; Bateni, S. M ; Fazeli, M ; Sharif University of Technology
    International Association of Hydraulic Engineering Research  2007
    The phenomenon of the hydraulic jump is so complex that despite considerable laboratory and prototype studies, estimation of its main characteristics in a generalized and accurate form is still difficult. The Artificial Neural Network (ANN) approach aims at limiting the needs for costly and time-consuming experiments. In this study, two ANN models, multi-layer perceptron using back propagation algorithm (MLP/BP) and radial basis function using orthogonal least-squares algorithm (RBF/OLS), were used to predict the roller length, sequent depth, and the relative energy loss of the B-jump. Based on a pre-specified range of jump parameters, the input vectors include: upstream bed slope (tan θ),... 

    Geotechnical characteristics of copper mine tailings: A case study

    , Article Geotechnical and Geological Engineering ; Volume 25, Issue 5 , 2007 , Pages 591-602 ; 09603182 (ISSN) Shamsai, A ; Pak, A ; Bateni, S. M ; Ayatollahi, S. A. H ; Sharif University of Technology
    Waste management issue in mining industry has become increasingly important. In this regard, construction of tailings dams plays a major role. Most of the tailings dams require some kinds of remedial actions during their operational lifetime, among which heightening is the most common. In the first stage of the remedial provisions for Sarcheshmeh Copper Complex tailings dam in Iran, it has been decided to use hydrocyclone method to provide suitable construction material due to the high cost associated with using borrow materials for heightening of the dam. To undertake this project a series of laboratory experiments was performed to determine the copper 'original tailings' and 'cycloned...