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잉크젯 프린팅을 이용한 초박막 투명 TiO₂ 코팅층 제조
윤초롱(Cho-Rong Yoon),오효진(Hyo-Jin Oh),이남희(Nam-Hee Lee),Guo Yupeng,이원재(Won-Jae Lee),박경순(Kyeong-Soon Park),김선재(Sun-Jae Kim) 한국표면공학회 2007 한국표면공학회지 Vol.40 No.4
Dye sensitized solar cells(DSSC) are the most promising future energy resource due to their high energy efficiency, low production cost, and simple manufacturing process. But one problem in DSSC is short life time compared to silicon solar cells. This problem occurred from photocatalytic degradation of dye material by nanometer sized TiO₂ particles. To prevent dye degradation as well as to increase its life time, the transparent coating film is needed for UV blocking. In this study, we synthesized nanometer sized TiO₂ particles in sols by increasing its internal pressure up to 200 bar in autoclave at l20℃ for 10 hrs. The synthesized TiO₂ sols were all formed with brookite phase and their particle size was several ㎚ to 30 ㎚. Synthesized TiO₂ sols were coated on the backside of fluorine doped tin oxide(FTO) glass by ink jet printing method. With increasing coating thickness by repeated ink jet coating, the absorbance of UV region (under 400 ㎚) also increases reasonably. Decomposition test of titania powders dispersed in 0.1 mM amaranth solution covered with TiO₂ coating glass shows more stable dye properties under UV irradiation, compared to that with as-received FTO glass.
윤초롱(Cho Rong Youn),이윤경(Yoon Kyung Lee) 한국디자인문화학회 2013 한국디자인문화학회지 Vol.19 No.1
상황에 따라 어떤 옷을 착장하는가는 그 사람의 첫 인상을 결정하는데 주요한 역할을 한다고 할 수 있다. 본 연구에서는 다수가 생각하는 TED 강연과 같은 동일한 상황에 적합하다고 판단되는 착장방식을 살펴봄으로써 특정 상황에 따른 이상적인 착장방식이 있는지 살펴보고 착장방식의 차이에 영향력을 미치는 요인을 살펴보고자 한다. 본 연구는 (1) 의복 행동이 강사의 전문분야와의 관계성을 분석하고 (2) 채택된 스타일이 분야와 성별에 따라 어떤 관계가 있는지 분석하는 것을 목적으로 한다.연구의 대상은 최근 전 세계적으로 관심을 모으고 있는 TED(TED.com)의 강연자들이 선택한 착장방법에 따른 아이템을 분석하고, 이러한 스타일이 특정 분야 또는 성별, 나이에 따라 어떠한 차이가 있는지 분석하였다. 본 연구는 2012년 1년 동안 개시된 총 274편의 비디오 파일을 대상으로 하였다. 분야는 TED의 카데고리 기준에 따라 테크놀러지(Technology), 엔터테인먼트(Entertainment), 디자인(Design), 비즈니스(Business), 사이언스(Science), 글로벌 이슈(Global Issues) 6가지로 나누었으며 발표자의 착장 아이템에 따라 크게 포멀 웨어와 캐주얼 웨어로 분류하여 분석하였다. 분석결과를 살펴보면 남성은 여성에 비해 더 다양한 스타일을 채택하고 있었으며, 채택된 아이템은 셔츠/ 자켓과 진 팬츠, 티셔츠와 진 팬츠 또는 수트로 나누어졌다. 여성은 분야에 상관없이 압도적으로 포멀웨어의 선택이 높았으며 그 대상은 포멀 원피스 또는 자켓과 팬츠, 캐주얼 원피스를 선택하고 있었다. 가장특성이 두드러지게 나타난 세 가지 분야를 중심으로 스타일을 살펴보면 1) 테크놀로지: 포멀한 상의와 캐주얼 하의, 2) 과학: 포멀한 상의와 하의, 캐주얼한 상의와 하의, 3) 글로벌 이슈: 포멀한 상의와 하의 착장의 빈도수가 높게 나타났다. One of the first things that people look at when judging others is clothing, which can sometimes send a clear signal about the wearer. In this study, there are what they are wearing depending on significant situation and which element is differently effective to select style at the presentation via large number of judgment in the same situation such as TED presentation. The purpose of this study was to analyze: (1) the clothing-behavior depending on which field and area of interest the speaker is presenting about (2) the interacting effect of gender on clothing style. This study analyzed the TED speakers` style. All video files posted on TED.com from January to December in 2012 were used for the study. The total number of video files analyzed was 274. Speakers were classified according to wearing styles and formal/casual items. The area is separated by 6 different categories such as technology, entertainment, design, business, science and global issues following categories of TED and speakers` style was categorized by formal wear and casual wear. As result of content analysis, we found the differences depending on gender and depending on the subject of presentation. Male presenters selected a wider selection of styles compared to female presenters, opting for combinations such as shirts / jacket + jean pants, t-shirts + jean pants, or a suit. However, the research has shown that female presenters pretty much preferred unified styles such as jackets + pants, formal dress, or casual dress regardless of the subject of presentation. Depending on the subject of presentation, speakers chose different types of clothing; 1) Technology: formal top & casual bottoms, 2) science: formal top & bottoms, casual top & bottom, and 3) global issue: formal top & bottoms.
국가별 TED 강연자의 의복선택을 통해 본수트에서 캐주얼 웨어까지 착용 변화
이윤경 ( Yoon Kyung Lee ),윤초롱 ( Cho Rong Youn ) 한국의류학회 2014 한국의류학회지 Vol.38 No.1
This study investigated the difference of clothing-behavior for the same occasions in terms of a cross cultural context. It analyzed clothing items worn by TED speakers via video at TED.com in the US, UK, France, Japan, and South Korea from October to December 2012. An analysis on the 233 videos showed considerable differences among countries. American speakers wore casual items on the top and formal wear on the bottom. Most British speakers wore the same styles on the top and the bottom outfits such as ``formal-top & formal-bottom`` or ``casual-top & casual-bottom``. French speakers chose mix and match styles. Japanese and Koreans selected the same styles on the top and the bottom outfits such as ``formal-top & formal-bottom`` or ``casual-top & casual-bottom``. In particular, Japanese speakers selected various casual items more than other countries` speakers. Korean senior speakers had a preference to wear more formal clothing and young people liked more casual attachments. This study found that clothing attachments differed by cultural context and generation.