"Design and Implementation of Novel Series Trigger Circuit for Xenon Flash Lamp Driver" Seung-Ho Song , Chan-Gi Cho, Su-Mi Park, Hyun-Il Park, and Hong-Je Ryoo , Trans. On Plasma Science , I.F: 1.325 , VOL. 46 , NO. 10 , pg. 3584-3590 , Oct.2018

"Study of Exhaust Air Treatment from a Ship Building Factory Painting Facility Using Pulse Plasma Technology" Hee-Sung Jin, Seung-Ho Song , Chan-Gi Cho, Su-Mi Park, and Hong-Je Ryoo , Trans. On Plasma Science , I.F: 1.325 , VOL. 46 , NO. 10 , pg. 3552-3556 , Oct.2018

"Trapezoidal Approximation of LCC Resonant Converter and Design of Multi-Stage Capacitor Charger for Solid-State Marx Modulator" Sung-Roc Jang, Chan-Hun Yu, and Hong-Je Ryoo , Trans. On Power Electronics , I.F: 7.224 , VOL. 33 , NO. 5 , pg. 3816-3825 , May.2018

"Simplified Design of a Solid State Pulsed Power Modulator based on Power Cell Structure" Sung-Roc Jang , Chan-Hun Yu, and Hong-Je Ryoo , Trans. On Industrial Electronics , I.F: 7.503 , VOL. 65 , NO. 3 , pg. 2112-2121 , Mar.2018

"Gate Driving Circuit with Active Pull-Down Function for a Solid-State Pulsed Power Modulator" Chan-Hun Yu, Sung-Roc Jang, Hyoung-Suk Kim, and Hong-Je Ryoo , Trans. On Power Electronics , I.F: 7.224 , VOL. 33 , NO. 1 , pg. 240-247 , Jan.2018

"Development of a 1.5 kV, 1.2 kA pulse power supply for light sintering" Chan-Gi Cho, Seung-Ho Song, Su-Mi Park, Hyeon-Il Park, Jung-Soo Bae, Sung-Roc Jang, and Hong-Je Ryoo , Trans. On Plasma Science , I.F: 1.253 , VOL. 45 , NO. 10 , pg. 2683-2690 , Oct.2017

"A 120-kV, 5-kA Multipurpose Pulsed-Power Generator Using a Semiconductor Switch and Magnetic Pulse Compression" Sung-Roc Jang, Geun- Hie Rim, Chan-Gi Cho, Seung-Ho Song, Su-Mi Park, and Hong-Je Ryoo , Trans. On Plasma Science , I.F: 1.253 , VOL. 45 , NO. 10 , pg. 2678-2682 , Oct.2017

"Compact Design of High Voltage Switch for Pulsed Power Applications" G. N. Appiah, S. R. Jang, J. S. Bae, C. G. Cho, S. H. Song, and H.J. Ryoo , Trans. On Dielectrics and Electrical Insulation , I.F: 1.774 , VOL. 24 , NO. 4 , pg. 2006-2013 , Aug.2017

"Development of 50-kV 100-kW Three-Phase Resonant Converter for 95GHz Gyrotron" Sung-Roc Jang, Jung-Ho Seo, and Hong-Je Ryoo , Trans. On Industrial Electronics , I.F: 7.168 , VOL. 63 , NO. 11 , pg. 6674-6683 , Nov.2016

"Robust Design of a Solid-State Pulsed Power Modulator Based on Modular Stacking Structure" Suk-Ho Ahn, Hong-Je Ryoo, Ji-woong Gong, and Sung-Roc Jang , Trans. On Power Electronics , I.F: 4.953 , VOL. 30 , NO. 5 , pg. 2570-2577 , May.2015

"Design and Implementation of a 40-kV 20-kJs Capacitor Charger for Pulsed-Power Application" Ji-Woong Gong, Hong-Je Ryoo, Suk-Ho Ahn, and Sung-Roc Jang , Trans. On Plasma Science , I.F: 1.101 , VOL. 42 , NO. 11 , pg. 3623-3632 , Oct.2014

"Low-Ripple and High-Precision High-Voltage DC Power Supply for Pulsed Power Applications"  Suk-Ho Ahn, Hong-Je Ryoo, Ji-Woong Gong, and Sung-Roc Jang , Trans. On Plasma Science  , I.F: 1.101 , VOL. 42 , NO. 10 , pg. 3023-3033 , Oct.2014

"Design and Test of 35 kJs High-Voltage Capacitor Charger Based on a Delta-Connected 3-Phase Resonant Converter" Suk-Ho Ahn, Hong-Je Ryoo, Ji-Woong Gong, and Sung-Roc Jang , Trans. On Power Electronics   , I.F: 6.008 , VOL. 29 , NO. 8 , pg. 4039-4048 , Aug.2014

"Design and Implementation of Enhanced Resonant Converter for EV Rapid Charger" Suk-Ho Ahn, Ji-Woong Gong, Sung-Roc Jang, Hong-Je Ryoo and Duk-Heon Kim ,  Journal of Electrical Engineering and Selected Topics in Power Electronics , I.F: 3.129 , VOL. 9 , NO. 1 ,  pg. 143-153 , Jan.2014

"Status of KERI’s pulsed power research and development" Geun Hie Rim, Jongsoo Kim, Yun-Sik Jin, Chuhyun Cho, Hong-Je Ryoo, Sung-Roc Jang, Kyung-Ae Cho, Seong-Jun Hong, and Farag K. Aboelyousr ,  Trans. On Plasma Science , I.F: 0.95 , VOL. 41 , NO. 10 , pg. 2584-2592 , Nov.2013