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D. M. Han,J. H. Lee,K. H. Jeong,이재갑 대한금속·재료학회 2010 METALS AND MATERIALS International Vol.16 No.4
During surface treatment using O2/CF4 plasma chemistry, the bias power applied to the indium-tin-oxide(ITO)substrate significantly degrades the electrical and optical performance of the organic light emitting diode (OLED) formed on the ITO electrode as a result of the formation of CFx polymer, In-Sn-F compounds,and structural defects. Application of bias power to the substrate effectively increases the sheath potential over the substrate and thus the flux of CFx + ion created in the O2/CF4 plasma, which leads to the production of CFx polymers as well as structural defects.
이재삼(J. S. Lee),박준호(J. H. Park),허동영(D. Y. Huh),강성인(S. I. Kang),김주훈(J. H. Kim),김은수(E. S, Kim) 전력전자학회 2009 전력전자학술대회 논문집 Vol.2009 No.1
This paper describes the gain characteristics of Multi-output LLC series resonant converter by using the new analytical method. Specially, using the Math-CAD simulated result, this paper analyzes an influence from the secondary leakage inductance of transformer. The theoretical results are verified through an experimental prototype of the 430W 3-output LLC resonant converter for 46inch PDP power module.
Analysis of the Mathematical Model of a Variable Displacement Vane Pump for Engine Lubrication
D. Q. Truong(딩광청),K. K. Ahn(안경관),J. S. Lee(이재신) 유공압건설기계학회 2014 드라이브·컨트롤 Vol.11 No.1
Variable displacement vane-type oil pumps represent one of the most innovative pump types for industrial applications, especially for engine lubrication systems. This paper presents a complete and accurate mathematical model for a typical variable displacement vane-type oil pump. Firstly, its theoretical model is revised. Secondly, an analysis of power loss factors of this pump type is carefully investigated to optimize the modeling accuracy. Finally, the estimated pump performance using the complete pump model is verified by numerical simulations in comparison with the practical tests.