Volume 15 (2024)
Volume 14 (2023)
Volume 13 (2022)
Volume 12 (2021)
Volume 11 (2020)
Volume 10 (2019)
Volume 9 (2018)
Volume 8 (2017)
Volume 7 (2016)
Volume 6 (2015)
Volume 5 (2014)
Volume 4 (2013)
Volume 3 (2012)
Volume 1 (2010)
On the crack propagation modeling of hydraulic fracturing by a hybridized displacement discontinuity/boundary collocation method

M. Behnia; K. Goshtasbi; M. Fatehi Marji; A. Golshani

Volume 2, Issue 1 , January 2011


  Numerical methods such as boundary element and finite element methods are widely used for the stress analysis in solid mechanics. This study presents boundary element method based on the displacement discontinuity formulation to solve general problems of interaction between hydraulic fracturing and discontinuities. ...  Read More

Pollution problems in the metallurgical industry: A review

F. Habashi

Volume 2, Issue 1 , January 2011, Pages 17-26


  Processing of minerals and production of metals has increased greatly in recent years. As a result, the quantities of waste material and pollutants have also increased. In many cases technology has changed to cope with the problem. Processes have been either modified to decrease emissions, or replaced ...  Read More

Application of SPI for Modeling energy consumption in Sarcheshmeh SAG and ball mills

M. Jahani; M. Noaparast; A. Farzanegan; G. Langarizadeh

Volume 2, Issue 1 , January 2011


  In this research, the efficiency of the comminution circuit as well as the efficiency of size classification equipment of the concentrator plant 2 of Sarcheshmeh copper complex was studied. The comminution circuit of this plant includes one SAG mill in a closed circuit with a vibrating screen and one ...  Read More

Support vector regression for prediction of gas reservoirs permeability

R. Gholami; A. Moradzadeh

Volume 2, Issue 1 , January 2011


  Reservoir permeability is a critical parameter for characterization of the hydrocarbon reservoirs. In fact, determination of permeability is a crucial task in reserve estimation, production and development. Traditional methods for permeability prediction are well log and core data analysis which are ...  Read More

Developing a method for identification of net zones using log data and diffusivity equation

P. Masoudi; B. Tokhmechi; A. Zahedi; M. Ansari Jafari

Volume 2, Issue 1 , January 2011


  Distinguishing productive zones of a drilled oil well plays a very important role for petroleum engineers to decide where to perforate to produce oil. Conventionally, net pay zones are determined by applying a set of cut-offs on perophysical logs. As a result, the conventional method finds productive ...  Read More

Processing of Alborz Markazi coal tailings using column flotation

Z. Bahri; S.Z. Shafaei; M. Karamoozian

Volume 2, Issue 1 , January 2011


  Investigations were carried out on coal tailings by conventional cell and column flotation techniques. Tests were conducted to assess processing coal tailings of Alborz Markazi coal washing plant in Iran by column flotation. The effects of reagent type/dosage were investigated with conventional flotation ...  Read More

The use of analytic hierarchy process in the selection of suitable excavation machine for Dez - Qomroud water conveyance tunnel (lot 1&2), Iran

M. Ataei; S.R. Torabi; B. Alizadeh Sevary

Volume 2, Issue 1 , January 2011


  Qomroud water conveyance tunnel (lot 1&2) with the length of 16 kilometers is considered as one of the greatest development and national projects in Iran. Since about 2 kilometers of tunnel pass through alluvium and the rest of the tunnel pass through various types of geological units, and due to the ...  Read More