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김덕중,Kim, Deok jung 대한심미치과학회 2018 Journal of the Korean Academy of Esthetic Dentistr Vol.27 No.1
Temporary restoration is one of the important processes in prosthodontic treatment, but some clinicians do not care about it. Most temporary restorations are literally used for a while, so most dentists like fast and cheap things. With the advent of dental CAD/CAM that can be made faster and easier with the changing age, the production of temporary restoration is also being digitized. It is good to be comfortable, but there are advantages and disadvantages. In this article, we are going to look at the 'analogue aesthetic anterior teeth temporary method' which seems to be the last generation. 치과 임상에서 임시치아 제작은 중요한 과정 중 하나이지만 이를 별로 신경 쓰지 않는 임상가도 있다. 대다수 임시치아는 말 그대로 잠시 쓰는 것이기에 빠르고 저렴하게 만들면 된다는 생각이 더 많을 것이다. 시대가 변화하면서 빠르고 비교적 간편하게 만들 수 있는 치과용 CAD/CAM이 보급됨에 따라, 점차 임시치아 제작도 디지털화 되고 있다. 편한 것도 좋지만 무엇이든지 장단점이 존재한다. 이 글에서는 지금이 마지막 세대일 것 같은 '아나로그식 심미적인 전치부 임시치아 제작법'에 대해 살펴보고자 한다.
10년 이상 장기 추적된 두개골 외판을 이용한 비첨성형술 환자의 골이식편의 운명
김덕중,이수향,황은아,최현곤,김순흠,신동혁,엄기일,Kim, Deok-Jung,Lee, Soo-Hyang,Hwang, Eun-A,Choi, Hyun-Gon,Kim, Soon-Heum,Shin, Dong-Hyeok,Uhm, Ki-Il 대한성형외과학회 2010 Archives of Plastic Surgery Vol.37 No.5
Purpose: In order to maintain corrected nasal tip projection, strong support is important. Authors used calvarial bone graft method for this purpose. Patients were followed up about permanency of the bone graft for a long time. Methods: From 1995 to 1998, author performed calvarial bone graft on 30 adult patients with secondary cleft lip and nose deformity. Patients were observed for 34 months. There were no specific complications, and results were satisfactory. We could confirm the permanence of the calvarial bone graft in 3 patients by photography and radiologic studies for 10 years follow-up. Results: None of the patients showed size change or displacement. But the portion of graft facing the tip was absorbed resulting in loss of tip projection and short nose in two patients. One patient had fracture on the middle of the graft. This caused depression from lower portion of the dorsum to the tip. Conclusion: Despite of autogenous grafts such as calvarial bone, absorption of the bone may occur when compressed with tension for a long period. And the graft in the nasal tip not having any contact with the nasal bone may cause absorption of the graft.
한일 기계번역의 효율화를 위한 고유명사 및 어절구조 해석기법
김덕중(Deok-Jung Kim),김금희(Kum-Hee Kim),김수현(Soo-Heoun Kim),임희경(Hee-Kyung Lim),정상수(Sang-Soo Cheong),최영희(Young-Hee Choi),서창덕(Chang-Duck Suh),임인칠(In-Chil Lim) 한국정보과학회 1993 한국정보과학회 학술발표논문집 Vol.20 No.1
본 논문은 한일 기계번역 시스템에 쓰이는 형태소 분석기 개선을 위한 고유명사 및 어절구조의 해석기법에 관한 연구이다. 고유명사는 사전에 동형이의어가 등록되어 있을 경우 잘못 번역될 수 있으므로, 번역대상 문장속에 있는 고유명사에 별도의 표시를 해두어 형태소 분석때 목적언어로 발음을 표기하고 괄호속에 원어로 표기해 주어 정확하게 번역한다. 또한 어절의 구조적 특징을 이용하여 어절을 이루는 위치에 올 수 없는 품사를 가진 단어를 제거해줌으로써 동형이의어를 처리할때 단어선택의 폭을 줄여준다. 본 논문에서는 고유명사에 표식을 넣어 주기 위한 자체 한글 입출력 처리기능을 가진 편집기를 내장하고, 사전의 구조를 한일, 일한 양방향 번역을 고려하여 재구성한다.
2-Stage CNG 레귤레이터의 성능 특성에 관한 실험적 연구
김덕중(Deokjung Kim),이기수(Geesoo Lee),김현철(Hyunchul Kim),김대현(Daehyun Kim),김익수(Iksoo Kim),임창규(Changkyu Lim) 한국자동차공학회 2010 한국자동차공학회 부문종합 학술대회 Vol.2010 No.5
With the increasing interests in and needs for eco-friendly vehicles worldwide, compressed natural gas (CNG) is recognized as one of the most promising alternative fuels, for its excellent fuel efficiency and low pollutant emission. Subsequently, the performance of the CNG regulator as one of the CNG fuel supply modules, which depressurize the highly pressurized CNG, is increasingly important. In this study, a test equipment, wherein the supply pressure, supply rate and coolant temperature could be controlled, was prepared to evaluate the performance of the CNG regulator. The changes in the outlet pressure and water jacket performance were observed while changing the supply pressure and supply rate. The results of the study showed that the rapid drop of the gas temperature at the regulator outlet, which is called icing, more influenced the regulator performance when the supply pressure was higher, and a method to maximize the water jacket performance would be necessary to solve the problem.
흡기계 HC 흡착필터가 차량 증발가스 저감에 미치는 영향
김덕중(Deokjung Kim),이기수(Geesoo Lee),김현철(Hyunchul Kim),최승배(Seungbae Choi),이동채(Dongche Lee),임종순(Jongsoon Lim),조용석(Yongseok Cho) 한국자동차공학회 2009 한국자동차공학회 학술대회 및 전시회 Vol.2009 No.11
The methods of reducing the amount of HC evaporative gas in the engine can be divided into two types: one involving the use of a catalyst, and another involving the use of an HC absorption filter. The method that involves the use of an HC absorption filter is recommendable as it would allow the evaporative gas in the intake manifold to be reduced when the engine is stopped. It is difficult, however, to predict the exact volume or the life span of absorption and desorption. Moreover, as the filter is to be installed in the air intake systems, air intake loss can occur. As such, a precise HC absorption filter design must be made, and repeated absorption and desorption tests, as well as a test of applicability to an actual vehicle, must be conducted. In this study, HC absorption filter was developed for use in reducing the evaporative gas in the air intake systems, and the Butane Working Capacity(BWC) test was conducted. The honeycomb type HC absorption filter, which shows the best absorption performance, was then installed in vehicle. 1-day diurnal test and hot soak test was then performed three times: before and after the installation of the HC absorption filter, and after sealing the air intake system. The results of the test show that the total HC evaporative gas emission after the installation of the HC absorption filter was 0.637 g/test, which represented a reduction of about 0.29 g compared to the gas emission (0.093 g/test) before the installation of the HC absorption filter. The efficiency of the HC absorption filter, which was calculated based on the result of its installation assessment, was shown to be 97.3%, which is a significantly high percentage.