<Education>
- Ph.D.: Department of Physics, University of Pennsylvania, Philadelphia, USA(1987)
- B.S.: Department of Physics, Seoul National University, Seoul, Korea(1981)

<Employment>
- 2018.5- Director, Tae Jun Park Research Institute, POSTECH
- 2017.9- Dean of Graduate School, POSTECH
- 2014.10-2016.9 President, Korea Foundation for Advancement of Science and Creativity (KOFAC)
Executive Committee/Chair, Subcommittee of Human, Social, Natural Sciences, KNC for UNESCO
- 2013.7-2014.12 President, Asia Pacific Center for Theoretical Physics (APCTP)
- 2011.9- 2013.8 Vice President of Research and Industry Affairs of POSTECH
- 2010.4-2014.10 Director, Institute for Edge of Theoretical Science
- 2007.9- 2009.8 Dean of Research Affairs, POSTECH
- 2004.5 – 2012.7 Executive Director, Asia Pacific Center for Theoretical Physics
- 2000.6 - present Director, Nonlinear & Complex Systems Lab.-Nat’l Research Lab.
- 1998.8 - 2000.7/2004.9-2006.3 Director, Brain Research Center, Pohang, Korea
- 1996.3 - 1997.2 Cambridge University, DAMTP, Senior Visiting Scholar, U.K.
- 1989.9 - 1990.1 Cornell University, CAM, Research Associate, U.S.A.
- 1988.9 - 1989.8 Institute for Advanced Study (Princeton), U.S.A.
- 1987.8 - 1988.8 Cornell University, MSI, Research Associate, U.S.A.

<Academic & Social activities>
- President (2018-), Korea Science Diplomacy Club
- President (2014-2016), Vice President (2008-2013) of the Association of Asia Pacific Physical Society
- President (2015-2016), Vice President (2007-2008) of The Korea Physical Society
- Co-President of Citizens’ Coalition for Scientific Society (2013-2015)
- Consultation Committee on Basic Science Promotion, National Science & Technology Council (2012-2014)
- Senior Member of Special Committee in Presidential Advisory Council on Education, Science &
- Engineering (2007-2009)
- Executive Director of IPhO2004 Organizing Committee (2002-2004)
- Scientific awards/honours Werner Teutsch Prize, University of Pennsylvania(1983)
- Hogil Kim Memorial Fellowship/Chevening Scholar, British Council(1996)
- Achievement Award, The Korea Physical Society(2004)
- Governor’s Award for Science Promotion (2005)
- Achievement Award, POSTECH(2011)
- Scientist of the Year, Korea Science Journalist Association (2013)

<Research keywords>
- Nonlinear dynamics, Chaos and Complex Systems, Applications to Neuroscience, Biophysics, Econophysics, etc.

<Publications/Conferences>
- Published over 100 papers on PRL, Phys. Rev.., Eur. Phys. J., PLOS One, Scientific Reports, etc.
- Organized numerous international conferences such as DDAP, APPC10, APCTP conference/workshop series, etc.