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April 10, 2014, in the afternoon, Dr. Hao Peng, Eindhoven University of Technology, Netherlands, visited Beijing Institute of Technology School of Management and Economics and made a wonderful presentation entitled "Maintenance Optimization for a Markovian Deteriorating System with Population Heterogeneity " at Room 418 in the main building. Professor Cui Lirong from the School of management and Economics hosted the lecture.