• Journal of the Korean Institute of Electrical and Electronic Material Engineers
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• v.19 no.5
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• pp.450-456
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• 2006

In this paper, we report the changes of morphology, transmittance and photoluminescence (PL) in hydrogenated amorphous $As_{40}Ge_{10}Se_{15}S_{35}$ thin films, thermally deposited at the vapor incidence angles (${\theta}$) of $0^{\circ},\;45^{\circ}\;and\;80^{\circ}$. The hydrogenation was carried out under the condition of a $H_2$ pressure ($P_H$) of 20 atm and an annealing temperature range, $T_{Anneal}$ of $150^{\circ}C{\sim}210^{\circ}C$. A columnar structures with an inclination angle of approximately $65{\sim}70^{\circ}$ was formed in $80^{\circ}$-deposited films and then the columnar was broken after hydrogenation. Transmittance increases with an increase of deposition angle and by the hydrogenation. In particular, a broad PL band on the extended region is observed in obliquely deposited films and it increases during the hydrogenation.

• Journal of Chest Surgery
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• v.46 no.6
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• pp.471-474
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• 2013

Extrauterine epithelioid trophoblastic tumors constitute an extremely rare gestational trophoblastic disease. We report the case of an extrauterine trophoblastic tumor that was incidentally detected in the left lung. Squamous cell carcinoma was suspected after microscopically examining the specimen obtained upon preoperative needle biopsy. After surgery, the tumor was confirmed by microscopic findings and immunohistochemical features.

• The Korean Journal of Food And Nutrition
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• v.27 no.6
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• pp.990-998
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• 2014

This study was performed to provide basic data for the sous-vide duck breast by comparing its water content, pH, color, number of microorganism, mechanical quality characteristic test, springiness, and sensory test with its control group which was cooked in traditional way. Sous-vide duck breast brightness, yellowness, and springiness. It l redness, hardness, and number of microorganism than its control group. There was no significant pH difference. Although sous-vide duck breast need longer cooking time, it was softer and had springiness. Overal-vide duck breast longer storage period and than traditionally cooked duck breast in sensory teste expected.

• Journal of Korean Neurosurgical Society
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• v.37 no.3
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• pp.241-243
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• 2005

We report a case of recurrent dermatofibrosarcoma in a 30-years-old woman who had undergone operations three times during 60 months and had received post-operative radiotherapy. On neurological examination, no neurological deficits were noticed. In brain magnetic resonance image(MRI), there was right parieto-occipital scalp mass with high signal in T2-weighted image, low signal in T1-weighted image with homogeneous enhancement. The removal was done including about 2cm uninvolved margins and pathologic examination of the lesion revealed dermatofibrosarcoma protuberans(DFSP). The prognostic factors of local recurrence may be related to surgical margins for resection; the length from the grossly intact margins, and the microscopically controlled excision in margins.

• Proceedings of the Korean Institute of Navigation and Port Research Conference
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• 2014.06a
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• pp.117-119
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• 2014

항로표지의 효율적인 설치를 위하여 항로표지 배치 대상 해역에 대한 사전 조사가 필요하며, 항로, 배후지역, 배후광 등을 고려하여 설치된 항로표지의 적절성을 검토하게 된다. 이러한 과정에서 항로표지 주변 환경을 재현한 항로표지 시뮬레이터를 이용하여 항로표지 배치를 위한 의사결정을 지원할 수 있다. 본 연구에서는 항로표지 시뮬레이터의 중요한 요소인 해역DB의 주간 모델과 야간 모델 구축시 고려될 요소를 고찰하고 항로표지 시뮬레이터용 해역 DB 구축을 위한 최적 방안을 도출하였다.

• Proceedings of the Korean Institute of Navigation and Port Research Conference
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• 2007.12a
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• pp.70-72
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• 2007

선박이 부두에 이접안할 경우 쓰러스터나 특수 추진기가 없는 선박은 예선의 도움을 받아 이접안을 하게 된다. 이접안시 예선들은 도선사의 명령에 의하여 선박의 이접안을 도와주게 된다 이때 본선과 예선의 위치가 2차원 지도에 표시되고 부두와의 상대적인 거리가 나타난 다면 이접안에 매우 도움이 될 것으로 생각된다. 본 연구에서는 이러한 예선사용 지원 시스템에 대해서 개념 설계를 수행하였다. 예선사용 지원 시스템은 본선, 예선 및 부두의 상황을 모니터링하는 예선사용 모니터링 기능과 해양환경을 고려할 때 필요한 예선력을 계산하여 나타내주는 예선사용 자동화 기능을 갖고 있다. 이러한 예선사용 지원 시스템은 항만에 설치된 네트워크를 기반으로 설계되었으며, 추후 한국해양연구원의 선박운항 시뮬레이터를 이용하여 검증될 계획이다.

• Proceedings of the Korea Concrete Institute Conference
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• 2006.05b
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• pp.617-620
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• 2006

This study is related to comprehending performance for watertightness and crack control of concrete added with crack reducing agent concerning to high strength concrete mixs. It was confirmed that watertightness of concrete added with agent could be improved by evaluation absorption ratio, permeability ratio and pore size distribution of hardened concrete. As well resistance to crack resulted from shrinkage was transferred to better state by the addition of agent.

• Journal of the Korean Ceramic Society
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• v.47 no.2
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• pp.132-135
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• 2010

Thermal properties of layered metal chalcogenides such as $WT_2$ (T=S,Se) with two-dimensionally disordered structure were evaluated. Thermal conductivity shows a marked decrease after exfoliation and subsequent restacking because of random stacking of two-dimensional crystalline sheet, which circumvents thermal conduction pathways along longitudinal direction in anisotropic materials.

• Proceedings of the Korea Concrete Institute Conference
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• 2005.11a
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• pp.667-670
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• 2005

This study is concerned with application of SWP-2H with performance which could be improved compressive strength, crack control of high strength concrete ranged from 35MPa to 70MPa. Expermental data showed that initial. behavior of SWP-2H added concrete had a similar tendency that of non-added concrete. As well crack resulted from autogeneous and drying shrinkage and compressive strength were well controled or elevated by application of SWP-2H.

• 대한생식의학회:학술대회논문집
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• 2007.06a
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• pp.124-124
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• 2007