"Long Gap Discharge in Water" Yun-Sik Jin, Chuhyun Cho, Hong-Je Ryoo, Jong-Su Kim and Geun-Hie Rim, Korea SooWon Lim , Journal of Korean Physical Society , I.F: 0.464 , VOL. 59 , NO. 6 , pg. 3640-3643 , Dec.2011

"The Design of High Efficiency Soft-Switching Converters for High Power Microwave Generation" Sung-Roc Jang, Suk-Ho Ahn, Hong-Je Ryoo, and Jong-Soo Kim , Journal of Korean Physical Society , I.F: 0.464 , VOL. 59 , NO. 6 , pg. 3688-3693 , Dec.2011

"Development and Optimization of High Voltage Power Supply System for Industrial Magnetron" Sung-Roc Jang, Hong-Je Ryoo, Suk-Ho Ahn, Jongsoo Kim, and Geun Hie Rim ,  Trans. On Industrial Electronics  , I.F: 5.16 , VOL. 59 , NO. 3 , pg. 1453-1461 , Aug.2011

"Compact and High Repetitive Pulsed Power Modulator Based on Semiconductor Switches" S. R. Jang, H. J. Ryoo, and G. Goussev , Trans. On Dielectrics and Electrical Insulation , I.F: 1.094 , VOL. 18 , NO. 4 , pg. 1242-1249 , Aug.2011

"Pulsed-Power System for Leachate Treatment Applications" Sung-Roc Jang, Hong-Je Ryoo, and Seung-Bok Ok , Journal of Power Electronics , I.F: 0.842 , VOL. 11 , NO. 4 , pg. 612-619 , Jul.2011

"Development of Rectangle-Pulse Marx Generator Based on PFN" Hongtao Li, Hong-Je Ryoo, Jong-Soo Kim, Geun-Hie Rim, Young-Bae Kim, and Jianjun Deng , Trans. On Plasma Science  , I.F: 1.043 , VOL. 37 , NO. 1 , pg. 190-194 , Jan.2009