%0 Journal Article %T A stochastic cut-off grade optimization model to incorporate uncertainty for improved project value %A Githiria %A J. %A Musingwini %A C. %J Journal of Power and Energy Engineering 电力与能源 %D 2019 %R 10.17159/2411-9717/2019/v119n3a1 %K optimization %K cut-off grade policy %K deterministic approach %K heuristic approach %K stochastic approach %K grade-tonnage realization %K uncertainty %U http://www.scielo.org.za/scielo.php?script=sci_arttext&pid=S2225-62532019000300004&lng=en&nrm=iso&tlng=en