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 2 (2011)
Volume 1 (2010)
Bayesian Data Fusion: a Reliable Approach for Descriptive Modeling of Ore Deposits

B. Tokhmechi; S. Ebrahimi; H. Azizi; Seyed R. Ghavami-Riabi; N. Farrokhi

Volume 11, Issue 1 , January 2020, , Pages 63-76


  Recognition of ore deposit genesis is still a controversial challenge for economic geologists. Here, this task was addressed by the virtue of Bayesian data fusion (BDF) implementing available proofs: semi-schematic examples with two (Cu and Pb + Zn) and three (Cu, Pb + Zn and Ag) evidences. The data, ...  Read More

Rock Mechanics
Fractal-wavelet-fusion-based re-ranking of joint roughness coefficients

M. Lotfi; B. Tokhmechi

Volume 10, Issue 4 , October 2019, , Pages 1121-1133


  Nowadays, Barton’s Joint Roughness Coefficients (JRC) are widely used as the index for roughness and as a challenging fracture property. When JRC ranking is the goal, deriving JRC from different fractal/wavelet procedures can be conflicting. Complexity increases when various rankings outcome from ...  Read More

Determination of optimal bandwidth in upscaling process of reservoir data using kernel function bandwidth

M. R. Azad; A. Kamkar Rouhani; B. Tokhmechi; M. Arashi

Volume 10, Issue 3 , July 2019, , Pages 613-621


  Upscaling based on the bandwidth of the kernel function is a flexible approach to upscale the data because the cells will be coarse-based on variability. The intensity of the coarsening of cells in this method can be controlled with bandwidth. In a smooth variability region, a large number of cells will ...  Read More

A new 2D block ordering system for wavelet-based multi-resolution up-scaling

B. Tokhmechi; M. Rabiei; H. Azizi; V. Rasouli

Volume 9, Issue 4 , October 2018, , Pages 817-828


  A complete and accurate analysis of the complex spatial structure of heterogeneous hydrocarbon reservoirs requires detailed geological models, i.e. fine resolution models. Due to the high computational cost of simulating such models, single resolution up-scaling techniques are commonly used to reduce ...  Read More