Jinhyeon Sohn

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This paper considers the discrete two-hub location problem. We need to choose two hubs from a set of nodes. The remaining nodes are to be connected to one of the two hubs which act as switching points for intemodal flows. A configuration which minimizes the total flow cost needs to be found. We show that the problem can be solved in polynomial dme when the(More)
We consider the operation of a multi-functional surface mounting device(SMD) which mounts various components provided by diverse types of feeders such as cassette, stick, and tray on a printed circuit board(PCB). The problem is to minimize the time needed to assemble a PCB using the SMD We decompose the problem into two subproblems, which are determining(More)
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