Volume 13 (2022)
Volume 12 (2021)
Volume 11 (2020)
Volume 10 (2019)
Volume 9 (2018)
Volume 8 (2017)
Volume 6 (2015)
Volume 5 (2014)
Volume 4 (2013)
Volume 3 (2012)
Volume 2 (2011)
Volume 1 (2010)
Case Study
Investigation of performances of solvents D2EHPA, Cyanex272, and their mixture system in separation of some rare earth elements from a Nitric Acid solution

Seyyed M. Seyyed Alizadeh Ganji; S. Z. Shafaie; N. Goudarzi

Volume 7, Issue 2 , July 2016, Pages 143-148


  This work was aimed to evaluate and compare the performances of the solvents D2EHPA (Di-(2-ethylhexyl) phosphoric acid), Cyanex 272 (bis (2,4,4-trimethylpentyl) phosphinic acid), and a mixture system of D2EHPA and Cyanex272 in the separation of some rare earth elements (REEs) including lanthanum, gadolinium, ...  Read More

Case Study
A comparative study of performance of K-nearest neighbors and support vector machines for classification of groundwater

M. Sakizadeh; R. Mirzaei

Volume 7, Issue 2 , July 2016, Pages 149-164


  The aim of this work is to examine the feasibilities of the support vector machines (SVMs) and K-nearest neighbor (K-NN) classifier methods for the classification of an aquifer in the Khuzestan Province, Iran. For this purpose, 17 groundwater quality variables including EC, TDS, turbidity, pH, total ...  Read More

Case Study
Ranking and comparing of traditional and industrial coke making by TOPSIS technique in Shahrood Simin Coke Company

I. Montazeri; M. Taji

Volume 7, Issue 2 , July 2016, Pages 165-173


  Various traditional and industrial coke making techniques were discussed based on their limitations and production capacities, and the criteria such as the quality and size of coke production, amount of coke crumb, amount of investment, amount of operational costs, labor force and mechanization. In this ...  Read More

Case Study
Estimation of penetration rate of tunnel boring machines using Monte-Carlo simulation method

H. Dehghani; N. Mikhak Beiranvand

Volume 7, Issue 2 , July 2016, Pages 175-184


  One of the most important parameters used for determining the performance of tunnel boring machines (TBMs) is their penetration rate. The parameters affecting the penetration rate can be divided in two categories. The first category is the controllable parameters such as the TBM technical characteristics, ...  Read More

Case Study
Semi-quantitative environmental impact assessment and sustainability level determination of coal mining using a mathematical model

M. Ataei; E. Tajvidi Asr; R. Khalokakaie; K. Ghanbari; M. R. Tavakoli Mohammadi

Volume 7, Issue 2 , July 2016, Pages 185-193


  Environmental impact assessment (EIA) has led to the dominance of planners on the natural environment of the regions, providing the possibility of continuously monitoring and controlling the status quo by management staff. In this regard, a new semi-quantitative model is presented for the EIA of the ...  Read More

Case Study
Concentration and recycling of rare earth elements (REEs) from iron mine waste using a combination of physical separation methods

M. Moghise; M. Pourrahim; B. Rezai; M. Gharabaghi

Volume 7, Issue 2 , July 2016, Pages 195-203


  This study aims to investigate and optimize the effects of the main parameters including the particle size, gravity and magnetic separation combination, high gradient magnetic separation, magnetic field intensity, shaking table slope, washing water flow, and electrostatic separation upon the rare earth ...  Read More

Case Study
Numerical investigation of effect of crack geometrical parameters on hydraulic fracturing process of hydrocarbon reservoirs

A. Abdollahipour; M. Fatehi Marji; A. R. Yarahmadi Bafghi; J. Gholamnejad

Volume 7, Issue 2 , July 2016, Pages 205-214


  Hydraulic fracturing (HF), as a stimulation technique in petroleum engineering, has made possible the oil production from reservoirs with very low permeability. The combination of horizontal drilling and multiple HF with various perforation angles has been widely used to stimulate oil reservoirs for ...  Read More

Case Study
Commodity price uncertainty propagation in open-pit mine production planning by Latin hypercube sampling method

M. Mokhtarian Asl; J. Sattarvand

Volume 7, Issue 2 , July 2016, Pages 215-227


  Production planning of an open-pit mine is a procedure during which the rock blocks are assigned to different production periods in a way that leads to the highest net present value (NPV) subject to some operational and technical constraints. This process becomes much more complicated by incorporation ...  Read More

Case Study
Estimation of groundwater inflow situation using fuzzy logic: a case study (Beheshtabad water conveying tunnel, Iran)

M. Doustmohammadi; A. Jafari; O. Asghari

Volume 7, Issue 2 , July 2016, Pages 229-238


  Water inflow is one of the most important challenges in the underground excavations. In addition to inducing working conditions and environmental problems, it decreases the stability and quality of the surrounding rocks. The direct method of measuring rock mass hydraulic conductivity consists of drilling ...  Read More

Case Study
Permeability upscaling in fractured reservoirs using different optimized mother wavelets at each level

R. Vahedi; B. Tokhmechi; M. Koneshloo

Volume 7, Issue 2 , July 2016, Pages 239-250


  We use a multi-resolution analysis based on a wavelet transform to upscale a 3D fractured reservoir. This paper describes a 3D, single-phase, and black-oil geological model (GM) that is used to simulate naturally-fractured reservoirs. The absolute permeability and porosity of GM is upscaled by all the ...  Read More

Case Study
Numerical analysis of energy transmission through discontinuities and fillings in Kangir Dam

A. Siamaki; H. Bakhshandeh Amnieh

Volume 7, Issue 2 , July 2016, Pages 251-259


  A considerable amount of energy is released in the form of shock wave from explosive charge detonation. Shock wave energy is responsible for the creation of crushing and fracture zone around the blast hole. The rest of the shock wave energy is transferred to rock mass as ground vibration. Ground vibration ...  Read More

Case Study
Role of smile correction in mineral detection on hyperion data

M. Mohammady Oskouei; S. Babakan

Volume 7, Issue 2 , July 2016, Pages 261-272


  This work aims to extract the mineralogical constituents of the Lahroud Hyperion scene situated in the NW of Iran. Like the other push-broom sensors, Hyperion images suffer from spectral distortions, namely the smile effect. The corresponding spectral curvature is defined as an across-track wavelength ...  Read More