"Electrical discharge machining of carbon nanomaterials in air: machining characteristics and the advanced field emission applications"

Jong G. Ok, Bo Hyun Kim, Do Kwan Chung, Woo Yong Sung, Seung Min Lee, Se Won Lee, Wal Jun Kim, Jin Woo Park, Chong Nam Chu, and Yong Hyup Kim , Journal of Micromechanics and Microengineering , 18 (2), 025007 (Feb 2008)

"Electrical Discharge Machining of Carbon Nanofiber for Uniform Field Emission"

Bo Hyun Kim, Jong G. Ok, Yong Hyup Kim, Chong Nam Chu , CIRP Annals–Manufacturing Technology , 56 (1), 233-236 (Dec 2007)

"Fabrication and the enhanced emission uniformity of carbon nanofibers using a glass cap"

Woo Yong Sung, Jong G. Ok, Wal Jun Kim, Seung-Min Lee, Eui Yun Jang, and Yong Hyup Kim , Nanotechnology , 18 (33), 335705 (Aug 2007)

"Synthesis and field emission characteristics of carbon nanocoils with a high aspect ratio supported by copper micro-tips"

Woo Yong Sung, Jong G. Ok, Wal Jun Kim, Seung Min Lee, Soon Chang Yeon, Ho Young Lee, and Yong Hyup Kim , Nanotechnology , 18 (24), 245603 (Jun 2007)

"Uniformity enhancement of carbon nanofiber emitters via electrical discharge machining"

Jong G. Ok, Bo Hyun Kim, Woo Yong Sung, Chong Nam Chu, and Yong Hyup Kim , Applied Physics Letters , 90 (3), 033117 (Jan 2007)