Economic valuation of coal deposits–The value of geological information in the resource recognition process

M Kopacz, J Kulpa, D Galica, A Dyczko, J Jarosz - Resources Policy, 2019 - Elsevier
Resource and economic assessment under uncertainty and risk is quite a difficult process.
Many geological, mining, technical and economic aspects should be taken in to …

Geostatistical prediction through convex combination of Archimedean copulas

B Sohrabian - Spatial Statistics, 2021 - Elsevier
A common problem in geostatistics is to interpolate a variable at unsampled locations using
available data. Kriging has been the conventional method of solving this problem by …

[HTML][HTML] Selecting the optimal exploitation option using a digital deposit model and the AHP

EJ Sobczyk, D Galica, M Kopacz, W Sobczyk - Resources Policy, 2022 - Elsevier
The prime objective of the study was to identify and evaluate options for development and
exploitation of a prospective hard coal deposit using a digital geological model and a multi …

Influence of voltage reserve on the parameters of parallel power active compensators in mining

A Kolb, Y Pazynich, A Mirek, OB Petinova - 2020 - dspace.pdpu.edu.ua
The static and dynamic reserve of voltage in input of voltage autonomous inverter being a
component of parallel power active compensator on the physical realizability of inactive …

Can switching from gasoline to aromatics mitigate the price risk of refineries?

A Quintino, M Catalão-Lopes, JC Lourenço - Energy policy, 2019 - Elsevier
Oil prices wide fluctuations have been a constant in energy economics, influencing heavily
the profits of oil companies. Even small oil prices changes imply wide variations in the …

The influence of variability models for selected geological parameters on the resource base and economic efficiency measures-Example of coking coal deposit

M Kopacz, J Kulpa, D Galica, P Olczak - Resources Policy, 2020 - Elsevier
In the research we examined the influence of a few geostatistical models (interpolators and
kriging models) on the resource base and economic efficiency measures, on the example of …

Copula-Based Data-Driven Multiple-Point Simulation Method

B Sohrabian, AE Tercan - Spatial Statistics, 2024 - Elsevier
Multiple-point simulation is a commonly used method in modeling complex curvilinear
structures. The method is based on the application of training images that are open to …

Classification of reserve in Sungun mine based on Archimedean copulas estimates

M Akbari Gharalari, J Abdollahi-Sharif… - Arabian Journal of …, 2022 - Springer
Incorrect estimation of grade values is a major problem in the Sungun copper mine of Iran
that the kriging estimates and blast hole data show inconsistencies due to biased estimates …

Enhancing mine risk assessment through more accurate reproduction of correlations and interactions between uncertain variables

A Ardian, M Kumral - Mineral Economics, 2021 - Springer
Risk is a significant phenomenon in mineral industries due to several associated social,
environmental, technical, and financial uncertainties. Risk assessment is a standard …

[图书][B] Investigation into correlations, dependencies, and interactions between uncertain variables in risk analysis of mining projects

A Ardian - 2021 - search.proquest.com
The mining industry is known to be risky. Commodity prices fluctuate widely and frequently
drop to below production costs. Resource and reserve estimations are made using sparse …