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예지연,최정희,이예숙,이영호,정준석 한국기상학회 2010 한국기상학회 학술대회 논문집 Vol.2010 No.10
금년 여름에는 동서고압대와 평년보다 발달한 북태평양고기압의 영향으로 평균기온이 평년보다 높았던 날이 92일 중 81일로 더운 날이 장기간 지속되었다. 강수량은 710㎜로 평년(699.7㎜)과 비슷하였으나 (평년대비 101.5%), 강수일수는 44.2일로 평년(36.8일)보다 7.4일 많아 1973년 이래 4번째로 많았다.
One-Pot Synthesis of Bicyclic Polystyrene by Combination of ATRP and Click Chemistry
최혜린,이태헌,정종화,예지화,전흥배,백현종 한국고분자학회 2016 Macromolecular Research Vol.24 No.10
A series of bicyclic polystyrenes of different molecular weights was synthesized in one-pot by atom transfer radical polymerization followed by click chemistry. The bicyclic polystyrenes were formed simultaneously with branched polystyrene impurities due to side reactions during click coupling. The pure bicyclic polystyrenes were obtained by selective precipitation. The purity of bicyclic polystyrenes before purification was determined by Gaussian multiple peak fitting from SEC trace. The bicyclic polymers were characterized by SEC, 1H NMR, and FTIR spectroscopy.
금속층 두께에 따른 ITO/Ag/ITO 다층 투명 전극의 발열 특성 연구
민혜진,강예지나,손혜원,신소현,황민호,이현용 한국전기전자재료학회 2022 전기전자재료학회논문지 Vol.35 No.1
In this study, we investigated the optical, electrical and exothermic characteristics of ITO/Ag/ITO multilayer structures prepared with various Ag thicknesses on quartz and PI substrates. The transparent conducting properties of the ITO/Ag/ITO multilayer films depended on the thickness of the mid-layer metal film. The ITO/Ag (14 nm)/ITO showed the highest Haccke’s figure of merit (FOM) of approximately 19.3×10–3 Ω-1. In addition, the exothermic property depended on the substrate. For an applied voltage of 3.7 V, the ITO/Ag (14 nm)/ITO multilayers on quartz and PI substrates were heated up to 110℃ and 200℃, respectively. The bending tests demonstrated a comparable flexibility of the ITO/Ag/IT multilayer to other transparent electrodes, indicating the potential of ITO/Ag/ITO multilayer as a flexible transparent conducting heater.