• 건축역사연구
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• 제19권4호
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• pp.7-19
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• 2010

'Lu' is one of the Korean traditional building structure. The architectural characteristics of the 'Lu' can be classified two types with its use. One is single building type and the other is a part of building type within building complex. This study is about the two-storied 'Lu' that was built on part of building complex. 'Lu' built in building complex such like Sa-chal, Hyang-gyo, Seo-won, Jae-sil, has the similar characters. 1. It is built by taking slope site. 2. Ii is one of four buildings that forms court yard. 3. It uses simple building structure on the purpose of openness 4. It can control view with using window. The column type of 'Lu' can be classified with 3 style. These are $5{\times}2$ Kan style, $3{\times}2$ Kan style and $5{\times}3$ Kan style. It would be assumed with the result of study that $5{\times}2$ Kan style has its origin in Hoe-Rang structure, $3{\times}2$ Kan style is originated from Joong-Moon(middle gate) structure, and $5{\times}3$ Kan is originated from Kang-Dang structure.

• 건축역사연구
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• 제32권5호
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• pp.51-58
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• 2023

This study was conducted to examine the architectural characteristics of Hak-seong Lee Family's Geun-jae-gong Historic House located in Seok-cheon-ri, Ung-chon-myeon, Ulju-gun, Ulsan. The house is said to have been rebuilt in the early 20th century after it was built in the 18th century, and now there are nine buildings left, including the An-chae, Sa-rang-chae, Sa-dang, storehouses and etc. This house is a large-scale house that is difficult to find similar cases in near region. The division of areas on each building is clear, and it is evaluated that it retains the typical characteristics of the head family in the late Joseon Dynasty in terms of its overall size and layout. In addition, the current wooden structure, which is said to have been rebuilt in the early 20th century, shows the composition method and space utilization method of the 3-Dori type upper structure, which have become more diverse since the late Joseon Dynasty. This has not been dealt with in the previous survey, and should be considered in detail through this paper.

• 한국섬유공학회:학술대회논문집
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• 한국섬유공학회 2007년도 학술발표회 논문집
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• pp.427-428
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• 2007

$Ca(OH))2$ 양에 관계없이 1일(日) 추출시에는 추출 pH 6에서 인디고 함량이 높았으며, 2일(日) 추출시에는 추출 pH에 의한 인디고 함량의 차가 매우 작았다. 추출 pH에 상관없이 쪽 추출액의 저장시간이 길어질수록 인디고 함량이 낮은 분말이 얻어졌다.

• 한국표면공학회:학술대회논문집
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• 한국표면공학회 2013년도 춘계학술대회 논문집
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• pp.96-96
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• 2013

그래핀과 금속 결합에서 발생하는 접촉 저항을 줄이기 위한 목적으로, 소자 제작에 사용되는 $SiO_2$ 기판의 표면을 플라즈마를 사용하여 에칭하는 최적의 조건에 대해 연구하였다. 기존에 발표된 연구 결과에 따라 $SF_6$와 $O_2$를 섞어 플라즈마 처리를 하였고, 플라즈마 방전에 사용 된 두 가스의 혼합 비율을 조절함으로써 소자 제작에 적합한 조건을 찾고자 하였다. 플라즈마 처리 전후의 $SiO_2$ 기판의 표면 측정은 AFM (Atomic Force Microscope)을 사용하였고, 단면은 SEM(Scanning Electron Microscope)을 통해 확인하였다.

• 한국주거학회논문집
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• 제8권3호
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• pp.29-38
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• 1997

This study is to search for the characteristics of spatial structure and elements of architectural composition on the housing and village in Nampeong Moon's Bonli Ma-Yul which formed. from the late nineteenth century to the the early twentieth century. This village had as many as characters of spatial and architectural structures of traditional clan villages previous to the late nineteenth century, but showed housing alternations on social changes of late Cho-Sun dynasty. Main points of these were as follows; 1) As the main doors of the housing were located on the right of Sa-Rang-Chae, men and women's moving lines of coming in and out were not nearly divided. 2)As korean veranda on the right and left, and the front and rear of those were set up, the demand on extension of room area coping with changes of life was satisfied.

• 한국전산구조공학회:학술대회논문집
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• 한국전산구조공학회 2011년도 정기 학술대회
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• pp.2-5
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• 2011

최근 들어 수치해석법의 발달에 힘입어 과거에는 시도할 수 없었던 많은 현상에 대한 특성을 평가할 수 있게 되었다. 그중 전산유체역학(CFD)는 많은 공학 분야에 활발히 적용되고 있으며, 건축에서는 기체나 유체의 유동해석이 필요한 건축환경, 건축설비, 소방설비 분야에서 그 필요성 및 적용성이 널리 인식되었다. 건축분야에서 CFD해석의 또 다른 적용분야는 풍하중에 대한 영향을 평가하는 것이다. 이미 국내외에서 많은 연구와 실제 적용사례가 보고되고 있으며, 향후 더욱 활발한 적용이 예상된다. 본 논문에서는 CFD해석의 적용사례 및 해석과정에 대해서 소개를 통해, CFD해석에 대한 이해를 돕고자 한다.

• The Korean Journal of Pain
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• 제8권2호
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• pp.312-318
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• 1995

Stellate ganglion block is extensively performed in pain closing to treat a diversity of diseases. Stellate ganglion phenol neurolysis, however, has not been not popular because of risk and complications such as: permanent horner's syndrome, hoarseness, pneumothorax and intravascular or intraspinal injection. But Racz recently performed stellate ganglion phenol neurolysis successfully, under fluoroscopic guide, minus significant complication. Three patients were recently treated at our pain clinic by repeated stellate ganglion block with local anesthetics. Patients showed immediate signs of improvement but prolonged pain relief was not achieved. Therefore we reported to performing stellate ganglion phenol neurolysis following Racz's technique. We successfully treated: two cases of reflex sympathetic dystrophy of the upper extremity, and a case of postherpetic neuralgia of jaw, neck and upper chest wall, by stellate ganglion phenol neurolysis, devoid of any significant complications.

• 정보보호학회지
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• 제21권4호
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• pp.22-31
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• 2011

스마트폰의 성능 향상과 다양한 기능 추가에 따라 스마트폰 사용자의 수는 급증하고 있으며, 모바일 인터넷 활용도가 높아짐에 따라 스마트폰을 통해 PC를 이용한 업무를 대체하는 것이 가능해졌다. 이러한 스마트폰의 성능 진화와 다양한 추가 서비스 제공은 사용자에게 편리함을 주고 있지만, 개인정보 노출, 모바일 악성 코드 등 다양한 위협에 노출될 가능성이 있다. 스마트폰에서의 사용자 인증은 스마트폰 기기를 안전하게 사용하기 위해서 필요한 기본적인 보안 기능이다. 본 논문에서는 스마트폰의 보안 위협 요소와 스마트폰의 사용자 인증 기법에 대해 알아본다. 스마트폰의 전자 지갑 애플리케이션과 해당 애플리케이션을 위해 개발된 사용자 인증 기법에 대해 알아본 후 전자 지갑 애플리케이션을 포함한 스마트폰 사용자 인증 기법의 특정, 장점, 단점 등을 비교 분석한다.

• 한국주거학회논문집
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• 제12권3호
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• pp.21-28
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• 2001

The purpose of this study is to find Korean tradition of residential space which continues since 1960s. Analysis of house works of contemporary architects on the foundation spatial characteristics of Korean. Traditional residence show that the trend and methods of embodiment of tradition in present architecture. The result of analysis could be summarized as follows. First, most of contemporary architects separate a house into two Chae-An Chae and Sa Rang Chae. Second, spatial flows in contemporary house works are very active through transition spaces just as traditional residence. Third, positive An Ma Dang takes on introversion, extroversion and continuity of space and also plays an important role in a house.

• 세라미스트
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• 제21권1호
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• pp.24-43
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• 2018

Organic-inorganic halide perovskite materials have attracted significant attention during the last few years because of their superior properties for electronic and optoelectronic devices, such as their long charge carrier diffusion lengths and high photoluminescence quantum yields of up to 100% with tunable bandgaps over the entire visible spectral range. In addition to solar cells, light emitting diodes (LEDs) represent a fascinating application for halide perovskite materials. In this study, we review the recent progress in halide perovskite LEDs. The current strategies for improving the performance of halide LEDs, focusing on morphological engineering, dimensional engineering, compositional engineering, surface passivation, interfacial engineering, and the plasmonic effect are discussed. The challenges and perspectives for the future development of halide perovskite LEDs are also considered.