Zobrazeno 1 - 10
of 27
pro vyhledávání: '"Gook-Hee Han"'
Autor:
Guangsup Cho, Gook-Hee Han
Publikováno v:
Applied Science and Convergence Technology. 26:201-207
Autor:
Eun Ha Choi, Seong Hwan Kim, Gook-Hee Han, In Hee Lee, Young-Wan Kwon, Daewook Kim, Guangsup Cho, Jun Young Kim, Geon Joon Lee
Publikováno v:
RSC Advances. 6:30699-30709
Effects of reactive oxygen species (ROS) on the optical, structural, and biological properties of Cordyceps pruinosa spores were studied. Both the atmospheric pressure plasma jet (APPJ) and chemically induced ROS significantly reduced the viability o
Autor:
Han Sup Uhm, Eun Ha Choi, Guangsup Cho, Gook-Hee Han, Jirapong Sornsakdanuphap, Pradoong Suanpoot
Publikováno v:
IEEE Transactions on Plasma Science. 43:2207-2211
Space- and time-resolved discharge-images from a nonthermal atmospheric-pressure indirect-plasma jet have been observed using a high-speed single-frame camera to investigate the electron temperature. The propagation velocity of the indirect Ar-plasma
Publikováno v:
IEEE Transactions on Plasma Science. 43:1983-1986
Composite charges applied to plasma striations were investigated through this paper. Bullets in plasma jets stemming from effective electrons made up of a moving target electron with screening electrons and ions around it were assessed using an atom-
Autor:
Yunjung Kim, Gi Chung Kwon, Jin Joo Choi, Eun Ha Choi, Gook-Hee Han, Han S. Uhm, Guangsup Cho, Sewhan Jin
Publikováno v:
IEEE Transactions on Plasma Science. 43:944-950
Plasma-jet systems and plasma devices of dielectric barrier discharge (DBD) are introduced for biomedical applications. To achieve the purpose of being safe and user friendly, these devices have been developed to avoid electric shock and thermal dama
Publikováno v:
Current Applied Physics. 14:1718-1726
The propagation of plasma jets with argon gas is characterized in terms of two factors, the effect of electric field distribution along the tube and the effect of voltage polarity, from the observed results of optical signals along the entire column
Autor:
Guangsup Cho, Do Young Kim, Hyunchul Kim, Won Young Lee, Gook Hee Han, Je Huan Koo, Dong Jun Jin, Yun Jung Kim, Hong Keun Yu, Se Whan Jin
Publikováno v:
Journal of the Korean Vacuum Society. 22:111-118
The influence of gas flow on the plasma generation in the atmospheric plasma jet is described with the theory of hydrodynamics. The plasma discharge is affected by the gas-flow streams with Reynolds number (Re) as well as the gas pressure with Bernou
Autor:
Guangsup Cho, Yunjung Kim, Jung-Gill Kim, Eun Ha Choi, Yeon-Jeong Kim, Hyun Cho, Gook-Hee Han
Publikováno v:
2016 IEEE International Conference on Plasma Science (ICOPS).
Wearable plasma-devices involving a dielectric barrier discharge (DBD) are introduced. The conventional devices of the atmospheric pressure plasmas, a DBD and a plasma jet developed last decades, have an inconvenient for some cases requiring a freque
Aerial ozone concentration in the pencil-type atmospheric plasma jets with the various working gases
Publikováno v:
2016 IEEE International Conference on Plasma Science (ICOPS).
Ozone concentration in the air is about 0.01∼0.03 ppm. A perceivable concentration of ozone odor for the human nose is higher than 0.03∼0.05 ppm. Therefore ozone can be easily noticeable at a low concentration so that there will not be reported t
Autor:
Yunjung Kim, Jung-Hyun Kim, Guangsup Cho, Dongjun Jin, Jongyoon Jeong, Hyunchul Kim, Han Sup Uhm, Gook-Hee Han, Min Kyung Lee, Eun Ha Choi
Publikováno v:
Journal of the Korean Physical Society. 61:557-562
An atmospheric plasma jet device consisting of a syringe electrode inserted into a glass tube has been introduced. A high voltage is applied to the syringe electrode with a DC-AC inverter at a few tens of kHz. The external electrode on the outside su