Professor, Department of Biomedical Engineering, University of Southern California, USA.

Vice President, IUPESM

Past President, IFMBE

Professor, BME, PUJ, Colombia.

Professor, School of Mechanical Engineering, Korea University, Korea.

Professor, Department of Mechanical Engineering and the Bakken Medical Devices Center, University of Minnesota, USA.

Chair Professor, Department of Chemistry, National Cheng Kung University, Taiwan.