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3D 프린팅 기술을 활용한 부품 유지보수를 위한 분류체계 데이터 구조의 개발
김태윤(Taeyun Kim),김장환(Janghwan Kim),박찬석(Chanseok Park),차무현(Moohyun Cha),심철용(Chul Yong Sim),명세현(Sehyun Myung),문두환(Duhwan Mun) (사)한국CDE학회 2017 한국CDE학회 논문집 Vol.22 No.4
To maintain parts using 3D printing technology, a part library management system is required which provides users with information about part function, manufacturing method, and inspection method as well as 3D CAD models used as an input file for 3D printing work. The part information and related files managed in the part library management system are described according to a predefined part classification scheme. In this paper, we propose a classification scheme data structure for the maintenance of parts using 3D printing technology. Then we develop a classification scheme for gaskets and o-rings according to the data structure. Finally, we construct part catalog data according to the classification scheme in the prototype part library management system and then perform experiments of retrieving part information and files from the system.
공공자료 분석을 통한 친환경적 풍력에너지 개발 기초 연구
김태윤 ( Taeyun Kim ) 한국환경정책평가연구원 2016 한국환경정책평가연구원 기초연구보고서 Vol.2016 No.-
본 연구는 온실가스 감축이라는 전 세계적 목표에 부합하기 위해 풍력발전의 친환경적인 개발을 유도할 수 있는 공공자료의 활용 방안을 검토하였다. 육상풍력 및 해상풍력 개발에 필요한 자료들을 파악하고 우리나라 육상풍력과 해상풍력의 진행현황을 조사하였다. 육상풍력과 해상풍력에 적용할 수 있는 우리나라의 공공자료 현황을 조사하였으며 이들 자료를 효과적으로 활용할 수 있는 방안과 문제점을 제시하였다. 육상풍력의 경우는 해상풍력보다 다양한 자료가 구축되어 있어 친환경적인 풍력발전을 효과적으로 유도할 수 있을 것으로 판단된다. 해상풍력의 경우는 산재된 해양환경 공간자료를 통합적으로 관리하는 시스템의 구축이 필요하다. 동 연구에서는 바람자료를 이용하여 우리나라 해역의 풍력밀도와 체득가능 에너지양을 산정하였으나 이에 대한 추가적인 검증이 필요하다. This study examined measures to utilize public-open data sources that can induce environmentally friendly development of wind power generation in South Korea. We reviewed the necessary data for on-land wind power and offshore wind power generation and investigated the development process of on-land wind power and offshore wind power in South Korea. This study presented the current status of South Korea`s public open data that can be applied to on-land wind power and offshore wind power development, and identified problems and suggested a scheme that can effectively utilize these data. In the case of on-land wind power, compared to offshore wind power, various data are constructed and thus environment-friendly wind power generation can be effectively induced. In the case of offshore wind power, it is necessary to construct a system that manages scattered marine spatial data in an integrated manner.
제주 지역에서 23S rRNA 점 돌연변이와 관련된 Clarithromycin 내성 Helicobacter pylori
김태윤 ( Taeyun Kim,),송현주 ( Hyun Joo Song ),신선영 ( Sun Young Shin ),김조헌 ( Jo Heon Kim ),나수영 ( Soo Young Na ),부선진 ( Sun Jin Boo ),최은광 ( Eun Kwang Choi ),조유경 ( Yoo Kyung Cho ),김흥업 ( Heung Up Kim ),송병철 ( Byu 대한소화기학회 2013 대한소화기학회지 Vol.61 No.5
Background/Aims: The point mutations in 23S rRNA gene accounts for the majority of the clarithromycin resistance of Helicobacterpylori. This study aimed to investigate the association between the clarithromycin-resistance of H. pylori and the failure of primary H. pylori eradication therapy in Jeju Island. Methods: Between April 2011 and October 2012, 6,937 patients underwent endoscopy, and H. pylori infection was evaluated in 2,287 patients (33.0%). Total of 110 patients with H. pylori infection were treated with proton pump inhibitor (PPI)-based triple therapy. The result of eradication was evaluated with urea breath test, histology and PCR which were conducted 4 weeks from the last dose of medicine. Results: The patients who had point mutations were 33 (26.0%). A2142G and A2143G mutations were observed in 10 patients (7.9%) and 23 patients (18.1%). Among 110 patients treated with PPI-based triple therapy, the success rate of the eradication therapy was 52.7% (58/110) and 70.7% (58/82) by intention-to-treat and per-protocol analysis, respectively. Fifteen of the 24 patients who failed the eradication therapy showed point mutations; 1 patient (4.2%) showed A2142G mutation and 14 patients (58.3%) showed A2143G mutation. Patients with A2143G mutation H. pylori showed higher failure rate of 87.5%. Patients with A2142G mutation H. pylori showed similar failure rate compared to those of the patients with wild type H. pylori. Conclusions: In Jeju Island, the frequency of 23S rRNA point mutations is similar (26.0%) with other regions of Korea (15.8-31.3%). A2143G mutation is associated with the failure of H. pylori eradication.