횡문근육종의 항암제-방사선치료 후 치아발육장애

최선영,홍성우,고광준,Choi Sun-Young,Hong Sung-Woo,Koh Kwang-Joon 대한영상치의학회 1998 Imaging Science in Dentistry Vol.28 No.1

This report details a case of 8-year-old girl showing failure of odontogenesis after chemo-radiation therapy for the rhabdomyosarcoma at the age of 4. The observed results were as follows : 1. Past history revealed that she had received for a total radiation dose of 4430cGy, 29 fractions in 6 weeks and chemotherapy with vincristine, actinomycin D and cytoxan, followed as maintenance phase for 2 years. 2. The patient was symptom -free and appointed for the treatment of multiple dental caries. 3. Oral examination showed hypoplastic enamel on whole erupted permanent teeth and showed retarded eruption. 4. Conventional radiograms showed failure of root development including abrupt cessation of root formation and root agenesis, and microdontia, missing teeth, irregular enamel, dislocation of the impacted teeth. Additional finding showed good healing bone pattern on the left mandibular ramus and angle area. 5. Cephalometric analysis revealed failure of bite raising due to incomplete eruption of all the first molars and made it possible to suspect entrapped mandibular growth and then Class II tendency growth. 6. There was correlation between the time of chemo-radiation therapy and the damage of the teeth.

해수침투 조사자료의 통합적 해석을 위한 GIS의 적용

최선영,황세호,박권규,신제현,윤왕중,Choi Sun-Young,Hwang Seho,Park Kwon Gyu,Shin Je-Hyun,Yoon Wang-Jung 한국공간정보학회 2004 한국공간정보학회지 Vol.12 No.3

국내 연안지역에서 광범위하게 발생하고 있는 해수침투를 정확하게 평가하고, 이에 대한 대책을 수립하기 위해서는 다양한 분야의 연구와 이들 상호간의 자료 통합과 유기적인 해석은 매우 중요하다. 현재 수리지구화학, 지구물리탐사 및 수리지질 등의 다양한 분야에서 해수침투 연구를 수행하고 있지만, 이들 자료의 공유나 체계적인 관리분야는 초보적인 수준으로 다양한 자료에 대한 검색과 관리가 어려울 뿐만 아니라, 자료를 통합하여 해석하는데 어려움이 따른다 따라서 본 연구에서 정밀조사 지역인 전남 영광군 백수읍 일대에서 획득하고 분석한 지표 및 시추공 물리탐사자료와 수리지화학자료를 데이터베이스로 구축하고, ArcView 스크립트어인 Avenue를 이용하여 데이터베이스 관리 및 시추공 3차원 가시화 인터페이스를 개발하였다. 이와 같은 지리정보시스템(GIS; Geographic Information System) 기반의 데이터베이스 구축과 사용자 인터페이스 개발로 다양한 종류의 해수침투 조사자료를 효율적으로 관리하고 통합할 수 있기 때문에 보다 정확하고 종합적인 분석이 가능할 것이다.

제로기반 코드 변조 기법을 통한 비디오 핑거프린팅 시스템

최선영,이해연,강인구,이흥규,Choi Sun Young,Lee Hae-Yeoun,Kang In Koo,Lee Heung-Kyu 한국정보처리학회 2005 정보처리학회논문지B Vol.12 No.4

Digital fingerprinting is a contents-protection technique, where customer information is inserted into digital contents. Fingerprinted contents undergo various attacks. Especially, attackers can remove easily the inserted fingerprint by collusion attacks, because digital fingerprinting inserts slightly different codes according to the customers. Among collusion attacks, averaging attack is a simple, fast, and efficient attack. In this paper, we propose a video fingerprinting system that is robust to the averaging attack. In order to achieve code efficiency and robustness against the averaging attack, we adopt anti-collusion code (fingerprint code) from GD-PBIBD theory. When the number of users is increased, the size of fingerprint code also grows. Thus, this paper addresses a zero-based code modulation technique to embed and detect this fingerprint code efficiently. We implemented a blind video fingerprinting system based on our proposed technique and performed experiments on various colluding cases. Based on the results, we could detect most of colluders. In the worst case, our scheme could trace at least one colluder successfully. 디지털 핑거프린팅은 워터마킹 기술에 기반한 콘텐츠 보호 기술로 디지털 콘텐츠에 구매자의 정보인 핑거프린트를 삽입하는 기술을 말한다. 콘텐츠 안에 삽입된 핑거프린트 정보는 다양한 공격을 받게 된다. 특히 동일한 콘텐츠 안에 서로 다른 구매자의 정보를 넣게 되는 핑거프린팅의 특성으로 인해 공모 공격이 가능하고, 그 중 평균화 공격은 빠르고 효과적인 공모 공격에 해당한다. 본 논문에서는 평균화 공격에 강인한 비디오 핑거프린팅 시스템을 제안한다. 공모 공격 후에도 특정 위치의 코드 값이 원래의 값을 유지할 수 있는 공모 방지 코드를 적용하였다. 또한 사용자의 수가 늘어남에 따라 핑거프린트 코드의 길이가 증가하는데 이와 같은 코드의 효율적인 삽입 및 검출을 위해 제로기반 코드 변조 기법을 적용함으로써 올바른 공모자 추적이 가능하도록 하였다. 제안한 방식을 사용하여 원본 비디오를 사용하지 않는 비디오 핑거프린팅 시스템을 구현하였고, 다양한 공모자의 수에 따른 실험을 수행하였다. 실험 결과에 따르면 대부분의 경우 공모자를 올바르게 추출할 수 있었고, 최소 한 명 이상의 공모자를 성공적으로 검출할 수 있었다.

건축기획단계 지원을 위한 BIM 기반 공간계획 시뮬레이션 시스템 개발에 관한 연구

최선영,최주원,김주형,김재준,Choi, Sun-Young,Choi, Ju-Won,Kim, Ju-Hyung,Kim, Jae-Jun 한국BIM학회 2011 KIBIM Magazine Vol.1 No.2

The planning stage of an architectural project has much more significant effects on the cost or outcome of the project than other stages of the project. In addition, the importance of architectural planning has been further increasing according to the recent trend of construction projects becoming larger in scale and more complex. In spite of this, the current situation is that the planning stage work is not being systematically managed. Accordingly, the purpose of this study was to develop a BIM-based simulation system for providing support during architectural planning stage such as spatial planning & review, cost review, project owner requirements management, etc. It is easy to review various alternatives using this system that allows not only the modeling of space object modeling but also the instantaneous review of spatial area & layout, cost, etc. based on object information. In addition, it can be used as a communication tool with the project owner as it provides the visualized information and quantitative data of the building model, and the information created through this system can be delivered to the following stage for usage. It is thought that using this system, the entire project work including the architectural planning stage can be supported and even contributing to the advancement of architectural process.

토마토로부터 N-nitrosodimethylamine 생성을 억제시키는 유효성분의 검색

최선영,이인숙,이수정,손미예,신정혜,서종권,강민정,성낙주,Choi, Sun-Young,Lee, In-Sook,Lee, Soo-Jung,Shon, Mi-Yae,Shin, Jung-Hye,Seo, Jong-Kwon,Kang, Min-Jung,Sung, Nak-Ju 한국생명과학회 2006 생명과학회지 Vol.16 No.5

A tomato (Lycopersicon esculentum cv. Naomi F1) juice was separated into ascorbate and phenolic portions using a Sep-pak $C_{18}$ cartridge, and its each portion was tested for inhibition of N-nitrosodimethylamine (NDMA) formation. Ascorbate and phenolic portions of tomato juice inhibited NDMA formation by $81.37{\pm}0.25%$ and $72.03{\pm}0.25%$, respectively. The phenolic portion was further fractionated by prep-HPLC and inhibitory effects of NDMA formation by 4 fractions $(1{\sim}4)$ from tomato juice was tested under the different pH conditions (pH 1.2 and 4.2). Fraction 2 inhibited NDMA formation by $50.10{\pm}0.46%$ (pH 1.2) and $64.30{\pm}0.20%$ (pH 4.2), respectively. Fraction 2 was further separated into 4 subfractions $(2a{\sim}2d)$. Subfraction 2b especially inhibited NDMA formation by $70.62{\pm}0.45%$ (pH 1.2) and $75.30{\pm}0.45%$ (pH 4.2). This subfraction was confirmed o-coumaric acid through the analysis of GC-Mass spectrum, $^1H-NMR$ and $^{13}C-NMR$.

스마트폰에서의 OTT(Over The Top)서비스 시청패턴 추적 어플리케이션 설계 : 티빙(tving)을 중심으로

최선영,김민수,김명준,Choi, Sun-Young,Kim, Min-Soo,Kim, Myoung-Jun 한국정보통신학회 2014 한국정보통신학회논문지 Vol.18 No.4

This study focuses on the fact that a OTT service is vigorously used for smart phones, and suggests a design of method to trace the experiences of watching television contents. For this purpose, we developed logging functions and embedded them into existing OTT service application to record flow and pattern of watching context. This paper suggests a log file format which can accurately and precisely record watching actions of users per-second methodology rather than former per-minute methodology. Moreover, this study shows that the application can trace watching attitude according to occurring events by characteristics and playing modes of realtime broadcasting, VOD, advertisement contents. In addition, based on the result of the study, this paper discusses educational, operational meaning of the method such as methodological application in mobile ethnography field or survey for total screening rate.

텐서그러티 모듈의 변형 및 응용에 관한 연구

최선영,박선우,박찬수,Choi, Sun-Young,Park, Sun-Woo,Park, Chan-Soo 한국공간구조학회 2005 한국공간구조학회지 Vol.5 No.2

Tensegrity is a relatively new structural system based on the use of continuous tension-discontinuous compression. Of course, a much more detailed structural investigation would be necessary, but at least in order to achieve the intended purpose, it is essential to understand the structural principles and the fundamental forces of tensegrity. Once this point is established, the applications of them to architecture are described, as well as the characteristics of these structures. Then, in spite of the controversial definitions to explain these systems, several examples of tensegrity prototypes or modules constructed in iESD(Institute of Environmental Structure Design) are presented to illustrate the feasibility of tensegrity as a lightweight structure. In this work, consequently, the reformability and application of tensegrity modules have also been researched in architecture, after the patterns of basic module as well as fundamental definition are introduced.

장스팬 대형.대공간 구조물의 시공기술

최선영,Choi, Sun-Young 한국공간구조학회 2004 한국공간구조학회지 Vol.4 No.2

남성 근로자들의 근무유형에 따른 건강상태 비교 연구

최선영,빈정은,김성희,Choi, Sun-Young,Bin, Jeong-Eun,Kim, Sung-Hee 한국식품영양학회 2012 韓國食品營養學會誌 Vol.25 No.4

The purpose of this study was to compare the anthropometry, serum lipid levels, dietary behavior and health-related behaviors of shipbuilding workers. The education level was significantly higher in office workers than laborers, while age, monthly income and working years were not significantly different between both groups. The serum triglyceride, glucose concentration and AI were significantly higher in office workers than in laborers, but the serum LDL-cholesterol and HDL-cholesterol concentrations were significantly higher in laborers than in office workers. The frequency of breakfast and coffee intake was significantly higher in office workers than in laborers. In the office workers, age was positively correlated with systolic blood pressure but was negatively correlated with hemoglobin and hematocrit concentration In the laborers, working year was negatively correlated with hemoglobin, total cholesterol and serum LDL-cholesterol concentrations. Exercise was negatively correlated with total cholesterol concentration, triglyceride and LDL-cholesterol concentration and AI in the office workers. The results of this study showed that office workers are more prone to related chronic degenerative diseases. Therefore, nutritional education for the provention of chronic degenerative diseases of shipbuilding workers needs to be more focused on improving the health status of office workers.

근로자들의 대사증후군과 건강위험 요인과의 관련성 연구

최선영,강나은,김성희,Choi, Sun-Young,Kang, Na-Eun,Kim, Sung-Hee 한국식품영양학회 2013 韓國食品營養學會誌 Vol.26 No.4

This study is performed to estimate the prevalence of metabolic syndrome among male workers and to identify the relationships with many related factors including anthropometry, hematological index, serum lipid level, dietary-related behaviors and health-related behaviors. According to the age groups, the 20s are significantly higher in normal and risk groups than in the metabolic syndrome (MS) group, the 30s are significantly higher in MS group than the other groups. The levels of AST and ${\gamma}$-GTP both show significant differences in the order of MS group ($30.3{\pm}8.8U/l$, $91.1{\pm}40.2U/l$) > risk group ($25.7{\pm}8.1U/l$, $41.8{\pm}20.2U/l$) > normal group ($22.8{\pm}6.0U/l$, $26.6{\pm}10.7U/l$). For the frequency of breakfast consumption, the response of 'Every day' is significantly higher in MS group than normal and risk groups, but the response of 'Not at all' is significantly higher in normal group than MS and risk groups. The drinking amount is positively correlated with ${\gamma}$-GTP in normal group, and it is negatively correlated with the hematocrit level, but it is positively correlated with the systolic blood pressure in MS group. AST is positively correlated with glucose concentrations of the MS group. The ALT is positively correlated with waist circumferences and systolic blood pressure in the risk group. The results of this study show that breakfast frequency, education level, drinking amount, drinking frequency, exercise frequency, AST, ALT and ${\gamma}$-GTP levels are all important risk factors of MS. Therefore, it is very important to maintain a healthy life style for the prevention of MS incidence.