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| 2013.08-2014.07 | Chair Professor of Department of Industrial Engineering inYuan Ze University , ROC |
| 2010.08-2013.07 | Chair Professor of Yuan Ze University, ROC |
| 2008.08-2010.07 | President of Nan Kai University of Technology, ROC |
| 2004.08-2008.07 | President of Nan Kai Institute of Technology, ROC |
| 2005-Present | Honorary professor, National Tsing Hua University, Taiwan, ROC |
| 2000-2005 | Professor and Dean, College of Scientific and Technology Management, National Tsing Hua University, Taiwan, ROC |
| 1989-1999 | Professor and Founding President, Yuan-Ze University, Taiwan, ROC |