• 한국재료학회지
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• 제18권3호
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• pp.113-116
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• 2008

A 532 nm Nd-YAG laser was applied to crystallize amorphous Si thin films in order to evaluate the applicability of a Nd-YAG laser to low-temperature polycrystalline Si technology. The irradiation of a green laser was controlled during the crystallization of amorphous Si thin films deposited onto glass substrates in a sophisticated process. Raman spectroscopy and UV-Visible spectrophotometry were employed to quantify the degree of crystallization in the Si thin films in terms of its optical transmission and vibrational characteristics. The effectiveness of the Nd-YAG laser is suggested as a feasible alternative that is capable of crystallizing the amorphous Si thin films.

• 한국막학회:학술대회논문집
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• 한국막학회 2004년도 Proceedings of the second conference of aseanian membrane society
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• pp.98-101
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• 2004

Utilization of biomass resources has considerable contribution to the reduction of carbon dioxide emission. Ethanol is one of the biomass products and is used as an additive to gasoline in several countries. Conventional process to produce ethanol involves energy-intensive azeotropic distillation. Pervaporation (PV) or vapor permeation (VP) is considered to be an alternative separation process to the conventional process.(omitted)

• 한국진공학회:학술대회논문집
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• 한국진공학회 2009년도 제38회 동계학술대회 초록집
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• pp.28-28
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• 2010

Photoelectrochemical solar cells such as dye-sensitized cells (DSSCs), which exhibit high performance and are cost-effective, provide an alternative to conventional p-n junction photovoltaic devices. However, the efficiency of such cells plateaus at 11-12%, in contrast to their theoretical value of 33%. Improvements in efficiency can only occur through a fundamental understanding of the underlying physics, materials, and device designs of DSSCs. A photoelectrode consisting of semiconducting oxide nanoparticles and a transparent conducting oxide electrode (TCO) is a key component of DSSC and design of photoelectrode materials is one of promising strategies to improving energy conversion efficiency. We introduce monodisperesed $TiO_2$ nanoparticles prepared by forced hydrolysis method and their superiority as photoelectrode materials was characterized with aids of optical and electrochemical analysis. Multi-layered TCO materials are also introduced and their feasibility for use as photoelectrodes is discussed in terms of optical absorption and charge collecting properties.

• 한국패션뷰티학회지
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• 제1권1호
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• pp.79-94
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• 2003

The purpose of this study was to discuss how make-up materials were used for the design techniques of special make-up that is part of impersonation, what kinds of materials were applied to special make-up design and how they were utilized, in a bid to find out more materials available for each of diverse design techniques in pursuit of better make-up design. The most widely used materials were divided into transformational and supplementary types, and the focus of this study was placed on two different design techniques. One put transformational materials to use, and the other utilized supplementary materials that also could serve as alternative and effect materials. Unlike general make-up that pursues beauty, special make-up focuses on realistic effect, and it cannot make any progress without newer, diverse materials which are increasingly gaining in importance. Although special make-up designing is a skilled technique that requires systematic knowledge of theories, proper materials and repeated practice, there is no absolute standard for it, since it is a product of imagination and depends on delicate hand skills and its effect hinges on individual viewer's visual perspective. In the future, more comprehensive and broader-scale experiments are called for to tackle this problem.

• E2M - 전기 전자와 첨단 소재
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• 제10권5호
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• pp.487-491
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• 1997

• 한국정보디스플레이학회:학술대회논문집
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• 한국정보디스플레이학회 2008년도 International Meeting on Information Display
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• pp.193-194
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• 2008

$Orgacon^{TM}$ products, based on the conducting polymer PEDOT/PSS, are very promising materials in cost-effective R2R production of large area electronics. This presentation will show both the progress in the surface resistance/VLT and progress in the stability (T/R.H. and light stability). A new generation of films, coating formulations and inks will be presented.

• 한국건설순환자원학회지
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• 제14권1호
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• pp.10-16
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• 2019

• 한국문헌정보학회지
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• 제50권4호
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• pp.165-184
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• 2016

감정적, 심리적 상처와 문제를 독자 스스로 치유할 수 있도록 도와주는 독서치료는 일반적으로 일반인(비장애인)을 대상으로 책(치유서)을 이용하여 진행되는 자가치료법이다. 일반인과 다르게 장애인은 책이 아닌 대체자료를 이용하여 독서치료를 실시한다. 장애인은 장애로 인해 소외감, 불안감 등 여러 심리적인 상처를 받거나 정신건강 문제를 가지게 된다. 장애인의 독서치료의 필요성에 대해 인식하여 장애인도서관에서 각종 프로그램을 개발 및 진행 중에 있지만, 아직 활성화 단계라고 볼 수 없다. 독서치료를 실시하기 위해서는 독서치료를 위한 자료에의 접근을 도와주는 독서치료 목록이 우선적으로 필요하다. 그러나, 기존의 독서치료 독서목록은 대부분 일반인을 위한 것으로 장애인을 위한 독서치료 대체자료 목록, 혹은 병리증상 혹은 상황에 따라 카테고리화된 대체자료 목록은 별도로 개발되어 있지 않다. 따라서, 본 연구에서는 장애인을 위한 독서치료의 활성화를 위한 일환으로, 장애인을 위한 독서치료와 독서치료 독서목록의 필요성에 대해 살펴보고, 장애인의 독서치료를 위한 대체자료의 현황, 그리고 앞으로 장애인의 독서치료를 위한 대체자료 개발 방안에 대해 제안한다.

• Composites Research
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• 제24권1호
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• pp.31-36
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• 2011

본 연구에서는 유도무기의 탐색기에 적용되는 지존 접착제의 대체 가능성을 조사하기 위해 환경인자의 노출시간에 따른 기존 접착제와 대제 접착제의 접착전단장도들을 평가하고 이들의 화학구조 변화를 조사하였다. 이때 접착제는 기존 접착제와 대체 접착제에 대해 각각 구조용 접착제와 실링용 접착제의 두 종류를 고려하였다. 이들 접착제는 온도, 수분, 자외선 등의 복합적인 환경인자에 최대 1000시간 동안 노출시켰다. 환경인자의 노출시간에 따른 접착제의 접착전단강도를 평가하기 위해 접착전단시험을 수행하고 화학구조 변화를 조사하기 위해 ATR 적외선 분광분석을 수행하였다. 연구결과에 따르면 대체 접착제의 접착전단강도는 기존 접착제의 경우에 비해 높으며 환경인자의 노출에도 매우 안정적으로 나타나 대체 접착제는 기존 접착제의 대체용으로 적용이 가능함을 알 수 있었다.

• 한국자동차공학회논문집
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• 제22권5호
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• pp.116-125
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• 2014

Pyrolysis oil (PO), derived from biomass through fast pyrolysis process have the potential to displace significant amounts of petroleum fuels. The PO derived from wood has been regarded as an alternative fuel to be used in diesel engines. However, the use of PO in a diesel engine is very limited due to its poor properties like low energy density, low cetane number, high acidity and high viscosity of PO. Therefore, one of the easiest way to adopt PO to diesel engine without modifications is blended with other fuels that have high centane number. However, PO that has high amount of polar chemicals is immiscible with non polar hydrocarbons of diesel or biodiesel. Thus, to stabilize a homogeneous phase of diesel/biodiesel-PO blends, a proper surfactant should be used. Nevertheless, PO which was produced from different biomass type have varied characteristics and this complicates the selection of a suitable additive for a specific PO-diesel emulsion. In this regard, a more simple approach such as the use of a co-solvent like ethanol or butanol to induce a more stable phase of the PO-diesel mixture could be a promising alternative. In this study, a diesel engine operated with diesel/biodiesel-PO-butanol blends was experimentally investigated. Performance and gaseous & particle emission characteristics of a diesel engine were examined under the engine loads of IMEP 0.2 ~ 0.8MPa.