The water footprint assessment for many products or processes has gained relevance; however, there are only a few aimed at the mining and metallurgy sector. The present study seeks to contribute a methodology to improve water footprint (WF) assessment in mining. The water footprint for the mining...

Maximum likelihood estimation for a joint location/dispersion model has been found occasionally to experience convergence problems when applied to experiments of the 2k factorial series. We explore these problems and identify models for which the likelihood diverges or is multimodal. We derive...