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김옥구,정용현,박종연,Kim, Ok-Gu,Jeong, Yong-Hyeon,Park, Jong-Yeon 한국천문학회 2012 天文學會報 Vol.37 No.2
로켓 엔진용 짐벌 마운트는 발사체 발사 후 자세 제어를 위해 발사체와 엔진사이에 장착된 TVC(Thrust Vector Control) 구동기의 작동으로 짐벌 운동을 수행하며 기구학적으로 자세 제어를 하는데 있어 매우 중요한 역할을 하는 요소이다. 이러한 짐벌 마운트는 엔진 추력을 발사체에 전달하는 기능 이외에 지정된 위치에 엔진을 고정시키는 역할과 위치 고정 후 발사체 단과 엔진의 정확한 추력 전달을 위한 기계적 불일치 보정 기능, 짐벌 구동에 대한 피봇 기능을 동시에 수행하여야 하는 복합적인 기능을 가지고 있다. 특히, 이중에서도 물리적으로 고 추력의 하중을 전달하는 요소로서 충분한 강도와 강성을 지녀야 하므로 본 연구에서는 이와 관련된 초기 설계 요구도 분석을 바탕으로 설계 규격에 부합하는 짐벌 마운트의 구조적 검토를 통해 로켓 엔진용 짐벌 마운트 설계 형상을 개념적으로 제시하였다.
김옥구 대한임상약리학회 2005 Translational and Clinical Pharmacology Vol.13 No.2
Background and Objectives: Electronic documents provide cost-time benefits over paper documents generated during clinical trials. Electronic document standards and guidelines for management, exchange, and submission of clinical trial data are now being prepared by international standard organizations. As a step from paper based clinical trial toward electronic clinical trial, it is essential to keep up with international electronic document standards and guidelines. Methods: We introduce electronic document standards and guidelines, which were discussed at the 18th Drug Information Association Electronic Document Annual Meeting. We first present the necessity of standards and guidelines related to electronic documents of clinical trial data. Next, we introduce international standard organizations including ICH, CDISC, and regulatory agency like US FDA, and their standards and guidelines. Results: ICH has developed guidelines for the registration of pharmaceuticals for human use. It has proposed two electronic document standards, Individual Case Safety Report and Electronic Common Technical Documents. US FDA posted final rules and drafts describing submission of data for new drug application in electronic format. CDISC develops models for submitting clinical trial data, operating institutions performing clinical trials, and generating metadata from statistical data. Conclusion: The standards and guidelines related with electronic documents of clinical trial data presented by international standard organizations will play a key role in the era of electronic clinical trials. It is recommended to join the standardization movement while standards and guidelines are actively being prepared.
김옥구,김선하,김주한,배균섭,김화정,박병주,Kim, Ok-Gu,Kim, Seon-Ha,Kim, Ju-Han,Bae, Kyun-Seop,Kim, Hwa-Jung,Park, Byung-Joo 대한임상약리학회 2003 Translational and Clinical Pharmacology Vol.11 No.2
Despite the importance of clinical trials in developing a new drug, paper based clinical trial is still costly and time-consuming. The process of a clinical trial has not kept up with available information technologies. We identify two major problems in paper based clinical trial. They are time delay and poor error control. To solve the problems information technologies are used in certain areas of clinical trial, but it is still restricted and partially helpful. This paper first explains the two problems in the process of paper based clinical trial and introduces four available information technologies that can help clinical trial in implementing electronic clinical trial (ECT), where information technologies are used in the whole process of clinical trial.