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			-  - 1988³â ~ 1991³â  NASA Lewis ¿¬±¸¼Ò ¼±ÀÓ¿¬±¸¿ø 
-  - 1991³â ~ 1992³â  ±¹¹Î´ëÇб³ ±â°è°øÇаú Á¶±³¼ö(Àü»ê À¯Ã¼¿ªÇÐ) 
-  - 1993³â03¿ù ~ 1995³â02¿ù  °í·Á´ëÇб³ °ø°ú´ë ±â°è°øÇаú Á¶±³¼ö 
-  - 1995³â03¿ù ~ 2000³â02¿ù  °í·Á´ëÇб³ °ø°ú´ë ±â°è°øÇаú ºÎ±³¼ö 
-  - 1995³â03¿ù ~   Çѱ¹Àü»êÀ¯Ã¼°øÇÐȸ ÆíÁýÀ§¿øÀå 
-  - 1996³â07¿ù ~   ´ëÇлê¾÷±â¼úÁö¿ø´Ü 
-  - 1997³â01¿ù ~   KSME International Journal Associate Editor 
-  - 1998³â01¿ù ~   ´ëÇѱâ°èÇÐȸ À¯Ã¼¿ªÇкι®ÆíÁýÀ§¿ø 
-  - 2000³â03¿ù ~   °í·Á´ëÇб³ °ø°ú´ë ±â°è°øÇаú ±³¼ö 
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