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Qian Chen
Engineering Technology, Savannah State University, Savannah, GA 31404 USA
Robert K. Abercrombie
Computational Science and Engineering, Oak Ridge National Laboratory, Oak Ridge, TN 37831 USA, Department of Computer Science, University of Memphis, Memphis, TN 38152 USA
Frederick T. Sheldon
Department of Computer Science, University of Memphis, Memphis, TN 38152 USA