• Journal of KIEE
• /
• v.11 no.1
• /
• pp.41-45
• /
• 2001

The addressing time should be reduced by modifying cell structure and/or driving method in order to replace the dual scan system by single scan and increase the luminance in large ac plasma display panel(PDP). In this paper, the effects of the dielectric layer thickness and the barrier rib height on the addressing time of ac PDP are investigated. It is found out that the addressing time was decreased with decreasing thickness of dielectric layer on the front glass and thickness of white dielectric layer on the rear glass. The decreasing rate were 160ns/10${\mu}{\textrm}{m}$ and 270nsd/10${\mu}{\textrm}{m}$, respectively. Also in case of decreasing the height of barrier rib, addressing time was decreased at the rate of 550ns/10${\mu}m$.

• Proceedings of the Korean Society of Life Science Conference
• /
• 2008.10a
• /
• pp.81.1-81.1
• /
• 2008

• Proceedings of the Korean Society of Life Science Conference
• /
• 2008.10a
• /
• pp.81.2-81.2
• /
• 2008

• Journal of KIEE
• /
• v.11 no.1
• /
• pp.46-50
• /
• 2001

In order to improve the luminous efficiency in ac PDP(Plasma Display Panel), we have suggested the new structures of sustain electrodes with waffle-type barrier ribs and the discharge current for a given pulse voltage has been decreased by eliminating the electrode area which has nothing to do with visible light emission area compared with conventional structure. As a result, the luminous efficiency was improved about 30% compared with the conventional structure.

• Proceedings of the Korean Environmental Sciences Society Conference
• /
• 2005.05a
• /
• pp.168-172
• /
• 2005

• Journal of the Korean Society of Costume
• /
• v.67 no.2
• /
• pp.52-67
• /
• 2017

This is the precedent study on the modern fashion design using Korean emotions, and its aim is to study the expressions in the modern fashion based on 'Jeong-Jung-Dong' idea from Korean dancing, which implicates the Korean emotion deeply among the artworks and give essence similar to the clothing. 'Jeong-Jung-Dong', a unique idea, in the Korean traditional dancing is the philosophy that involve the paradox expression, 'Movement in Silence,' which represented the emotion of Korean dancing for a long time. The main characteristics deducted in 'Jeong-Jung-Dong' were 1) the incomplete and complete by atypical, 2) the beauty of temperance by symbolism, and 3) amusing mutual relationship. Upon the analysis results of previous studies on the expressions in the modern fashion with 'Jeong-Jung-Dong', they demonstrated the atypical expressed by metaphor, symbolic expression through margin, and mutual relational table by harmony. The analysis of modern fashion expression by 'Jeong-Jung-Dong', which is a philosophical idea in the Korean dancing, could highlight the new way of looking at the clothing and systemize the theory on the Korean emotion to seek the effective expression of artistic features for the culture together with introduction of our unique emotion in the creative design process by understanding of humanitarian and philosophical ideologies to be utilized in the future Fashion Design.

• Proceedings of the Korean Society of Life Science Conference
• /
• 2005.04a
• /
• pp.207-207
• /
• 2005

• Journal of Microbiology and Biotechnology
• /
• v.21 no.12
• /
• pp.1287-1293
• /
• 2011

The extracellular polysaccharide (EPS) was isolated from mycelial cultures of Laetiporus sulphureus var. miniatus and purified by DEAE cellulose and Sephadex G-50 column chromatography. The purified EPS (EPS-2-1) was composed of only glucose units and its molecular mass was 6.95 kDa. The chemical structure of EPS-2-1 consisted of a main chain containing ($1{\rightarrow}4$)-Glcp units with branches at the C-6 position of the chain carrying-Glcp-($1{\rightarrow}4$)-linked residues. The effect of purified EPS on immunomodulatory genes and proteins of the Bcl-2 family was observed using cultured U937 human leukemia cells. Of note, the levels of Bax and Bad proteins treated with the EPS (4 mg/ml) were approximately 23- and 18-times higher than those in non-treated cells, respectively. These results may suggest that the EPS purified from the mushroom L. sulphureus is associated with the activation of immunomodulatory mediators, Bax and Bad proteins.

• Journal of KIEE
• /
• v.11 no.1
• /
• pp.27-32
• /
• 2001

In this study, the luminance, luminous efficiency and address time of an PDP as a parameter of the phosphor thickness and the size of discharge space are investigated. The maximum luminance and luminous efficiency are obtained at the phosphor thickness of 30 ${\mu}{\textrm}{m}$ for the rib height of 110 ${\mu}{\textrm}{m}$. For the rib height of 120~160 ${\mu}{\textrm}{m}$, the maximum values are obtained at the thickness of 50 ${\mu}{\textrm}{m}$ regardless of the kind of R, G and B phosphor. These results do not affected by the variation of discharge space. The average decrease rate of the total charge to the phosphor thickness is about 3.35pc/cell/10 ${\mu}{\textrm}{m}$ and the average increase rate of the addressing time is about 0.027 $mutextrm{s}$/10 ${\mu}{\textrm}{m}$.

• Proceedings of the Korean Society of Plant Biotechnology Conference
• /
• 2003.04a
• /
• pp.136-136
• /
• 2003