대한재료금속학회 제3회 철강과학포럼, 2009-07-02
9th International Conference on Nitride Semiconductor, 2011-07-10
5th Congress of the International Union of Microbeam Analysis Societies(IUMAS-V), 2011-05-22
대한전자현미경학회 춘계학술대회, 2009-05-13
대한재료금속학회 춘계학술대회, 2009-04-23