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  • An assessment of mining efficiency in Turkish lignite industry 

    Authors:Ediger, Volkan S.; Berk, Istemi; Ersoy, Mucella
    Publisher and Date:(Elsevier Science, 2015)
    This article focuses on the mining activities of Turkish Coal Enterprises (TKI) the major lignite supplier in Turkey. First we analyzed the lignite production and overburden removal activities of TKI from a historical perspective and then employed the Principle Component Analysis to build a mining efficiency index of TKI and investigated its historical development since the establishment of the company. We found that labor productivity and operational structure have been the most important factors ...