issue 4 publication date 2019-10-01

• Determining optimal distance from outlet of auxiliary forcing ventilation system to development of heading in underground mines
• Evaluation of stream sediment contamination by potentially toxic elements around mining and farming areas (SE Nigeria)
• Calculating inter-sectoral carbon flows of a mining sector via hypothetical extraction method
• Evaluation of background geochemical speciation of heavy metals in overburden topsoil of bituminous sand deposit area, Ondo state, Nigeria
• Delineation of alteration zones based on artificial neural networks and concentration-volume fractal methods in the hypogene zone of porphyry copper-gold deposit, Masjed-Daghi, East Azerbaijan Province, Iran
• Application of simulated annealing for optimization of blasting costs due to air overpressure constraints in open-pit mines
• Development of a GEP model to assess CERCHAR abrasivity index of rocks based on geomechanical properties
• Characterization of rare earth elements by coupling multivariate analysis, factor analysis, and geostatistical simulation; case-study of Gazestan deposit, central Iran
• Application of cut set method to reliability evaluation of mine ventilation networks
• Effects of number of freeze-thaw cycles and freezing temperature on mode I and mode II fracture toughness of cement mortar
• A numerical analysis of effect of segmental lining joints on tunnel support internal forces under seismic loading
• Numerical analysis of slide-head-toppling failure
• Copper recovery from thickener overflow by electrocoagulation/flotation: optimization of response surface, modeling, and sludge study
• Effect of segmental joint stiffness on tunnel lining internal forces under static conditions
• Analysis of reliability and maintainability for multiple repairable units (Case study: Sungun copper mine)
• Geostatistical and multi-fractal modeling of geological and geophysical characteristics in Ghalandar Skarn-Porphyry Cu Deposit, Iran
• Solvent extraction and stripping of zinc from synthetic chloride solution in presence of manganese and cadmium as impurities
• Use of a mixed integer programming model to achieve an optimum size of blast block in open-pit mining with regard to size of mineable block using fuzzy logic approach
• Performance evaluation of chain saw machines for dimensional stones using feasibility of neural network models
• Fractal-wavelet-fusion-based re-ranking of joint roughness coefficients