Alexandra Newman, an associate professor in the Division of Economics and Business of the Colorado School of Mines, will give a talk Monday (Oct. 19) at 3 p.m. in Room 203 of the Zachry Engineering Center at Texas A&M University.

Newman’s talk, “A Medley of Operations Research Mining Applications,” is hosted by the Texas A&M Department of Industrial and Systems Engineering and is sponsored by Parsons Corp.

Abstract
In this talk, we present three different applications of operations research in mining: (i) open pit production scheduling, which entails choosing when to mine notional three-dimensional blocks of ore subject to geospatial and operational constraints; (ii) timing the transition between open pit and underground mining, which consists of determining when, if ever, to sink shafts from an open pit mine and switch from surface to underground mining methods; and (iii) underground production scheduling, which is similar in concept to open pit scheduling, but entails details absent in open pit operations. All models are complex integer programs; we show how we exploit problem structure to arrive at more tractable models, and we present numerical results from real mines.

Biography
Alexandra Newman is an associate professor in the Division of Economics and Business at the Colorado School of Mines. She received her Bachelor of Science degree in applied mathematics from the University of Chicago and her Ph.D. in industrial engineering and operations research from the University of California, Berkeley. Prior to her appointment at the School of Mines, she was a research assistant professor in the Operations Research Department at the Naval Postgraduate School. Her research focuses on optimization applications, particularly in logistics, mining and the military.

Submitted by Katherine Edwards, kedwards@tamu.edu

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