President, Asia Oceania Geosciences Society (AOGS)
Distinguished Fellow
Institute of Earth Sciences
Academia Sinica, Taiwan, ROC
Title of Speech : “GPS: Scientific Applications Toward Better Understanding of Earth Processes”

President, Institute of Navigation (ION)
Professor and Chair
Dept. of Civil, Environmental and Geodetic Engineering
The Ohio State University, USA
Title of Speech : “50 Years of Accelerating Tomorrow: From GPS to GNSS and Beyond”