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최주현,최상경,Joohyun Choi MD,Sang Kyung Choi 대한안과학회 2010 대한안과학회지 Vol.51 No.2
Purpose: To assess the refractive outcome of cataract surgery employing IOL master and A-scans in diabetic and non-diabetic patients Methods: The retrospective comparative study included 205 eyes of consecutive patients who had uneventful cataract surgery implanting I-Flex IOL. Axial length was measured with IOL master and A-scan and IOL power was calculated using various formulas (SRK II, SRK/T, Haigis, Holladay). Subjects was separated into five groups according to axial length, and then the groups were divided into diabetic and non-diabetic subgroups. Differences between the predicted refraction and the actual refraction were compared and analyzed at two months after the operation. Results: The mean absolute errors (MAE) of ten groups showed no significant differences. Comparing diabetic groups and non-diabetic groups, there were no statistically significant differences. Also the result of the two modalities, IOL master and A-scan, were not different in statistical analysis. Conclusions: In diabetic and non-diabetic patients, IOL master and A-scan may be the accurate methods for calculating IOL power regardless of the axial length. J Korean Ophthalmol Soc 2010;51(2):188-194
최주현(Ju Hyun Choi),김신원(Shin Won Kim) 한국디자인문화학회 2011 한국디자인문화학회지 Vol.17 No.4
르네상스 이후, 산업혁명을 거치면서 도시 곳곳에는 기계화, 대량생산화에 따른 인공적인 신재료에 편향된 건축양상이 나타나게 되었다. 이에 지하철 역사 내의 벽면에 장식 벽화를 설치하여 밝고 생기 있는 공간으로 조성하고자 자연적 요소를 도입하게 됨에 따라 자연친화적 소재인 흙을 활용한 도예작품이 지하철 공간에 설치되기 시작하였다. 서울특별시에서는 지하철 정거장을 문화예술의 공간으로 조성하고자 미술장식품 설치에 대한 세부시행 기준을 수립하여 시행하고 있으며, 다양한 도자벽화의 설치가 성행하게 되었다. 본 연구의 목적은 지하철 역사에 설치된 도자벽화의 조성 실태를 파악하여 도자벽화의 설치방안에 관한 기초적 자료를 제공함으로써 지하철 공간을 서울의 도시문화를 대변하는 문화공간으로 발전시키는데 목적이 있다. 연구 대상지로는 서울도시철도공사가 운영하는 문화열차 5, 6, 7, 8호선을 중심으로 도자벽화가 설치된 15개소의 정거장을 선정하였으며, 총 18개의 도자벽화를 연구의 범위로 설정하였다. 연구의 진행을 위하여 분석항목을 크게 도자벽화의 작품 내용, 재료와 기법, 설치 및 관리로 분류하고, 항목별 빈도분석을 실시하여 객관적인 상황과 특징을 파악함으로써 항목간의 연관성을 도출하였다. 본 연구를 통하여 도자벽화가 지닌 제한된 주제와 재료 및 표현기법, 설치장소의 한계를 찾아볼 수 있었으며, 작품설명판의 부재와 표기내용, 장애요소 등의 문제점을 도출할 수 있었다. 이에 지하철 역사의 정체성을 반영한 주제 선정과 흙의 가소성을 활용하여 도자재료의 특질을 효과적으로 표현할 수 있는 다양한 표현기법 개발, 계획단계에서부터 도자벽화의 입안을 검토하여 설치 및 관리에 관한 제도적 장치를 마련할 것을 지하철공간의 도자벽화에 관한 개선방안으로 제시하였다. 도자벽화 와 지하철공간의 환경 개선은 일상 속에서 친숙하게 예술을 접할 수 있는 문화공간으로 발전시켜 문화도시 서울시의 성장에 기여할 수 있을 것이다. 또한 도자벽화가 설치된 지하철공간을 이용하는 시민들과 서울을 찾는 외국인에게 한국의 아름다운 도자예술을 소개하는 기회로 삼아 도자벽화의 조형성과 예술성을 널리 알릴 수 있는 계기가 되기를 기대하는 바이다. After Renaissance, the Industrial revolution and high developed high technology may cause to provide widely different type of architectural materials which was limited in the before. Also, more architects and designer is applying more environmentally friendly materials to subway decoration because of new technology such as ceramics. As a result, city government of Seoul has settled a ``Regulation for art decoration and scripture for subway station`` to provide appropriate space design guideline. It has been caused to use ceramics often for wall decoration. The subject of this study is to provide appropriate information on history of ceramic material usage for station wall decoration and appropriate information for future development. In order to progress this study, it has been concentrated on subway line 5, 6, 7 and 8 which are operated by ``Seoul Metropolitan Rapid Transit Corporation.`` 15 stations with 18 case studies have been taken for the study. In order to overcome this study, subject has been divided into several subject categories such as story topic, material, technology for application, maintenance. Also, all categories have been taken to study for usage frequency to find out relationship of each other. This study has results that there are limited Story topics, Material, Technology for application and space usage allowed. Also, some of maintenance problem can be found such as no existing information board for the decoration. Ceramics decoration can provide some art experience for the people who use subway in daily base. Furthermore, the decoration of subway station with ceramics leads image of Seoul city to the more art friendly city. Also, tourist and visitor can have easily experience Korea traditional ceramic beauty when the ceramic art are being applied to subway station space with appropriate methods.
면역억제제 투여 환자에서 발생한 비전형적 소견의 첨규콘딜롬
최주현(Joo Hyun Choi),조미경(Mi Kyung Cho),전덕규(Duk Kyu Chun),박경찬(Kyoung Chan Park) 대한피부과학회 1989 대한피부과학회지 Vol.27 No.6
Condyloma acuminatum is a common viral disease which is transmitted by sexual intercourse. We experienced a case of condyloma acuminatum occurring in a patient of systemic lupus erythematosus who has been treated with various immunosuppressive agents for 10 years. This condylorna acuminatum was unusual in that it was very rapidly growing, recurrent and reluctant to various treatrnents. We investigated the type of human papillomavirus by Southern blot hybridization and schieved partial improvement by bleomycin intralesional injection together with 5-FU topical application.
최주현(Joo Hyun Choi),서대헌(Dae Hun Suh),이애영(Ai Young Lee),이유신(Yoo Shin Lee) 대한피부과학회 1990 대한피부과학회지 Vol.28 No.6
Clothing dermatitis is a rare disease. The distribution of the eruption coincides with the places on the skin where the garment fits most snugly. It is developed by the chemicals and the dyes rather than textile itself. We experienced 2 cases of clothing dermatitis, one of which was caused by formaldehyde in clothing. (Kor J Dermatol 28(6):765 768, 1990)
최주현(Joo Hyun Choi),이애영(Ai Young Lee) 대한피부과학회 1991 대한피부과학회지 Vol.29 No.2
Formaldehyde is contained in various everyday products such as shampoos, detergents, leathers and papers, and is thought to be one of the important couses of clothing related contact dermatitis(ACD). The results about the minimum sensitizing concentrations of formaldehyde were different, and the concentration of 30 pg per gram of textiles was the least one. We measured the quantity of formaldehyde in 16 different types of textiles which are widely used in Korea to investigate whether the textiles contain an enough amount of formaldehyde to induce ACD and washing can reduce the amount of it. The results were as follows : 1. The quantity of formaldehyde ranged from 3 to 1246 pg per gram of textiles. 2. Three types textiles contained more than 100pg of formaldehyde per gram of textiles and 6 between 50 pg and 100pg. 3. 1.00% cotton, ramie and rayon contained the highest content of formaldehyde per gram fabric. 4. After washing, the average quantity of formaldehyde decreased to 60% of that, of pre-wash measure. (Kor J Dermatol 29(2):155 158
최주현(Ju-Hyeon Choi),김지선(Ji-Sun Kim),정구인(Gu-In Jung),이태희(Tae-Hee Lee),김아희(A-Hee Kim),오한별(Han-Byeol Oh),박희정(Hee-Jung Park),김경섭(Kyung-Seop Kim),전재훈(Jae-Hoon Jun) 대한전기학회 2013 전기학회논문지 Vol.62 No.9
The light intensity which represents the relative amount of brightness and darkness is very important feature to discern the color hue and its relevant information. With this aim, we devise a new optical system and method to analyze the light intensity. Our suggested system including a phototransistor and white-high-brightness chip light-emitting diode intend estimate the contrast value utilizing Image Research Institute(I.R.I.) Hue & Tone samples which includes 120 color sheets arranged by the color hue and tone. As a result, we confirmed that the brightness of the color checker can be accurately estimated by a high-brightness light-emitting-diode optical system.