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- 저자 : 蘇珠姬 (검색결과 39 건)
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수퍼커패시터 응용을 위한 EGaIn 액체 금속 전극의 전기화학 특성 연구
소주희,구형준 한국수소및신에너지학회 2016 한국수소 및 신에너지학회논문집 Vol.27 No.2
Recent years, supercapacitors have been attracting a growing attention as an efficient energy storage, due to their long-lifetime, device reliability, simple device structure and operation mechanism and, most importantly, high power density. Along with the increasing interest in flexible/stretchable electronics, the supercapacitors with compatible mechanical properties have been also required. A eutectic gallium-indium (EGaIn) liquid metal could be a strong candidate as a soft electrode material of the supercapacitors because of its insulating surface oxide layer for electric double layer formation. Here, we report the electrochemical study on the charging/reaction process at the interface of EGaIn liquid metal and electrolyte. Numerical fitting of the charging current curves provides the capacitance of EGaIn/insulating layer/electrolyte (~38 F/m 2 ). This value is two orders of magnitude higher than a capacitance of a general metal electrode/electrolyte interface
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소주희,구형준 한국화학공학회 2019 Korean Chemical Engineering Research(HWAHAK KONGHA Vol.57 No.5
Thermophoresis is a transport phenomenon of particles driven by a temperature gradient of a medium. In this paper, we discuss the thermophoresis of particles in microfluidic channels. In a non-fluidic, stagnant channel, the thermophoretic transport of micro-particles was found to be larger in proportion to the voltage applied to the platinum wire heat source installed in the channel. The variation of the temperature around the platinum wire depending on the voltage was estimated, by using the Callendar-van Dusen equation. The thermophoretic behavior of nano-particles in the same system was observed, which is similar to that of the microparticles. Finally, we fabricated a Y-shaped microfluidic channel with a platinum wire heat source installed in the channel, to realize the thermophoretic phenomenon of the particles in the suspension flowing through the channel. It is shown that the flow of the suspension can be controlled based on the thermophoretic principle. 열영동은 매질의 온도 구배에 의해 입자가 이동하는 현상이다. 본 논문에서는 미세유체 채널에서 입자의 열영동 현상에대해서 논의한다. 흐름이 없는 비유동 채널에서 열원인 백금 와이어에 가해지는 전압에 비례해서 열영동에 의한 마이크로입자의 이동이 더 크게 나타남을 확인하였다. 전압에 따른 백금 와이어 주변 온도 변화는 Callendar-van Dusen 식을 이용하여 예측하였다. 동일한 시스템에서 나노 입자의 열영동 현상을 관찰한 결과, 나노 입자도 마이크로 입자와 유사한 열영동 거동을 보임을 확인하였다. 마지막으로 Y 모양 미세유체 채널을 제작하고 백금 와이어 열원을 채널 내에 설치하여, 채널을 흐르는 현탁액 내의 입자의 열영동 현상을 구현하고, 이를 기반으로 현탁액의 흐름을 제어할 수 있음을 보인다.
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소주희 한국공업화학회 2016 한국공업화학회 연구논문 초록집 Vol.2016 No.1
갈륨인듐 공융합금(Eutectic Gallium Indium)은 상온에서 액체 상태로 점도가 낮아 형태의 변형이 쉽고 금속의 높은 전도성을 가지기 때문에 유연 전자 소자의 전극 물질로 활용될 수 있다. Soft lithography 기술을 이용하여 고분자 탄성중합체 내부에 채널을 형성하고, 액체 금속을 주입하여 유연하고 신축이 가능한 다양한 전자 소자들을 제조하는 공정이 개발되었다. 본 발표에서는 액체 금속을 활용한 신축가능 안테나, 미세유체소자, 신축 와이어, 메모리 소자 등을 소개하고 이 소자들의 특성과 가능성을 논의한다.
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蘇珠姬 慶北大學校 師範大學 1985 敎育硏究誌 Vol.27 No.-
The basic mechanical properties of SILK before and after cleaning-dry cleaning(D. C), wet cleaning(W. C), wet cleaning after a dry cleaning (D. Cl-W), and treating with fabric softener after wet cleaning (W. C-R)-was measured by using the KES-F system, and changes of these properties and the fabric hand values were investigated. The results were as follows: 1. Dry cleaning was the best method in diminishing deformation by cleaning, and wet cleaning after a dry cleaning was economical and easy care. 2. Dry cleaning was better method than any other method on maintenance of handle of original's, but 'fullness and softness' was improved by wet cleaning and was added by treating textile softener.
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蘇珠姬 慶北大學校 産業開發硏究所 1982 硏究報告 Vol.10 No.-
The purpose of this study is to obtain the basic data for the improvement of the textile and clothing education in home economics by surveying the view of textile and clothing-required functions, required properties, the actual conditions of perference, and the reason of disuse. The subjects of investigation were 239 males and 231 females from 20 to 40 age, who resided in Taegu city and other towns. The results are as follows: 1) Intergrating the required functions and the reason of disuse of clothing, both males and females thought much of wearability irrespective of use―the suit of street wear, ceremonial dress, working garment, and underwear. Specially, females thought much of aesthetic appearance, while males thought much of durability on the suit of street wear. 2) In the required properties depending on the use of clothing, both males and females made a great point of abrasion resistance and launderability on working garment, while texture, absorbency, and launderability on underwear. On the other hand, females thought more of visual and aesthetic appearance than males thought on the street clothes. 3) On account of all respondents having a right understanding of the actual conditions of preference and its reason of textiles, textile selection and its reason which were based on season and use was relatively rational.
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徐英淑,蘇珠姬 慶北大學校 師範大學 1987 敎育硏究誌 Vol.29 No.-
The basic mechanical properties of Ramie before and after cleaning-dry cleaning (D.C), wet cleaning (W.C) and wet cleaning after dry cleaning (D.C→W) was measured by using the KES-F system, and changes of these properties and the fabric hand values were investigated. The result was that Dry cleaning was better method than any other method on maintenance of original properties of Ramie.
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溶劑洗濯에 관한 實態調査 : 大邱市內 드라이크리링業者와 消費者를 중심으로
徐英淑,蘇珠姬 慶北大學校 師範大學 1984 敎育硏究誌 Vol.26 No.-
The purpose of this paper is to find out the problems of dry-cleaning and to make some proposals for consumers, dry-cleaners, manufacturers of textile goods and administrative authorities. It is desired that the result of this resaerch will help; 1) protect consumer and dry-cleaner's interests 2) enforce the proper process in dry-cleaning 3) induce the improvement on textile-management upon the basis of investigation into the actual dry-cleaning condition in Daegu region.
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趙必嬌,소주희 慶北大學校 師範大學 1984 敎育硏究誌 Vol.26 No.-
The purpose of this study was to investigate the relationship between fashion behavior and individuality-conformity of women student in Daegu. Fashion behaviors were measured by professor Kang's test sheet and dress Conformity were extracted by the Clothing behavior expressed by Creek more. The colleted data were produced by computer applying one way ANOVA and compared with the result of F-test. The results indicate that 1. There were significant relationship between dress Conformity-individuality and fashion awareness 2. There were significant relationships between dress Conformity-individuality and fashion performance 3. Fashion awareness and fashion performance have a significant relationahips.
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