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- 저자 : 정도원(Jung Do-Won) (검색결과 29 건)
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정도원(Jung Do-Won),이영엽(Lee Young-Yeob),김은실(Kim Eun-Sil) 한국철도학회 2009 한국철도학회 학술발표대회논문집 Vol.2009 No.5월
KTX decelerator is a device to fulfil a role of tranmission of turning force to reduction device of an axle by serrate device. Currently, KTX decelerator's TBO(Time Between Overhaul) has 3 years cycle. As for the dissembly maintenance of a device, its maintenance is conducted every 1.4M kms. In this study, since opening of KTX, we analyzed reliability, maintainability, availability of KTX decelerator by researching historical records of maintenance of the decelerator, and based on above data, investigated whether its TBO cycle and maintenance works properly or not. And we considered maintenance policies of KTX decelerator to improve efficiency in maintenance in the future.
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정도원(Jung Do-Won),김현식(Kim. Hyun-Sik),강기석(Kang Ki-Seok),김형인(Kim Hyeong-In),정성윤(Jung Sung-Youn) 한국철도학회 2008 한국철도학회 학술발표대회논문집 Vol.- No.-
Using network communication, KTX OBCS is KTX"s core device which inspects operation status of various electric equipments and supports driving command, train control, train"s maintenance, train crew"s driving. Since this device is manufactured as specialized system, being dependent on TGV manufacture specification and France"s high speed train operation method, actual technic transfer is difficult. Therefore, there are many difficulties, since most of interface signals are connected with OBCS when function improvement, maintenance, various electric equipments(propulsion control device, auxiliary power supply device, door control device etc.) are replaced with localized ones, which are required in operational view after introduction of KTX. Ergo, this study would like to contribute to function improvement and maintenance"s efficiency, furthermore to realize technical independence, escaping from dependency of developed foreign technology in high speed train and electric equipments, through KTX OBCS" function analysis and mutual interface information analysis with peripheral device(driver console, PID system, fault display device, various electric equipments).
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한국철학 : 퇴계 수양론의 이 중심적 특성에 관한 소고
정도원 ( Do Won Jung ) 동양철학연구회 2002 東洋哲學硏究 Vol.31 No.-
Yi-whang is the famous neo-Confucianist in Chosun Dynasty, with his study of Mind and practicing his theory in his real life. But most studies on Yi-whang are centered on theoretical area, especially on logical co-herence between Li(理) and Chi(氣). Now, we had to develop our study of Yi-whang, if we want to explain the whole feature of his thought, in the point of Self-Cultivation(修養), and it will unite his logical aspect with his real practicing life, because his thought doesn`t separated his daily practicing, and the Occurrence with his philosophical root. His Diary, only one year, and another Diary hasn`t found yet, was written in 1554 and he is 54 years old. His Diary is the milestone of his practice, so we can find feelings and Self-Cultivating process in his daily life very honestly. So, the Diary of 1554 may be the clue of our developing study on the base of his practice experiences. And, now, I would try to explain Yi-whangs philosophy on the point of Cultivating Li(養理), the expression of his Diary. His said 平心和氣 養理去吝(feb. 10th. 1554), but Cultivating Li(養理)〔Cultivating the moral and ontological One〕 was not possible and common expression in that time, although it was said by Chu-His(朱熹), before, because it has a sophisticate problem, that Li is the only One, and an Ultimate thing, like God, so it cannot be moving thing and it cannot be cultivated . But Yi-whang said Li is moving and controlling, although it is absolutely universal, his Cultivating Li was said in these contexts. Because he thought that Chi(氣) has no eternal meaning and morally neutral, so human life must be controlled by Li, and Li is manifested in our moral feelings of daily life. Our moral feelings, like Four clue〔四端〕, is available only by Li, and that means Chi must be Controlled by Li in every moments and situations, so it may be called Cultivating or nurturing Li, that is, Li`s Self-Manifestation. Cultivating Li does not mean Cultivating Li itself or Cultivating Chi. Cultivating Li means Control Chi in the point of Li, and for the realization of Li. Chi is only matter, in point of Yi-whang, so it has no change possibility, only control possibility. The Li`s moving and coming in mind are available on this point of view. It is very sophiscated but special aspect of Yi-whang` philosophy. He felt the moving moral mind, and encountered the Ultimate One Moral and Ontological Motif〔天理〕 in his daily practicing life, so he emphasized to know Li in the practical and logical bae. Neo-Confucianists have the qualitative transformation as an object, as a result of Self-Cultivating, but Yi-whang didn`t. His Change is not qualitative transformation, its merely proficiency or expertness of controlling mind, because his Chi has no possibility of qualitative transformation.
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중국철학 : 주륙이동(朱陸異同)과 원대(元代) 주륙화회론(朱陸和會論)에 대한 재검토
정도원 ( Do Won Jung ) 동양철학연구회 2005 東洋哲學硏究 Vol.42 No.-
Some of Chinese NeoConfucianists, from 14th century, asserted that the difference of Zhuxi and Liuxia`ngsha￣n in philosophical aspect was not fundamental, and they agreed the other`s thought. This assertion succeeded to Wa`ngshoˇure´n`s the treatise on the last theory of Zhuxi. But this is merely a hypothesis, because this assertion has no evidences. Those who asserted this hypothesis wanted the power of Zhixism as a government school and to reform that time`s decadence of philosophy. So their assertion is not an assertion for learning`s sake. At the end of Ming Dynasty, Huangtzungshi extended the area of this assertion to Yua´n Dynasty Zhuxism, and write on the history of Chinese philosophy from Yua´n to Ming in this point of view. As a result of this works, nowadays, this assertion is accepted very important view of Chinese philosophy after Zhuxi. But there is none of evidence for this assertion nor reasonableness in this assertion, because their evidences are restricted and distorted for their assertion. So we cannot use this hypothesis to explain After Zhixi Zhuxism.
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한국철도공사 건널목 사고에 대한 위험도평가 기반의 안전관리 방안 연구
정도원(Jung Do-Won),임재은(Lhim Jea-Eun),김치태(Kim Chi-Tae) 한국철도학회 2009 한국철도학회 학술발표대회논문집 Vol.2009 No.11월
Looking into The safety management system of KORAIL, it is usually enforcing the safety check on a regular basis to prevent railroad accident, yet most training and regulations related to accidents are focusing on the field of emergent countermeasures just like prompt report and accident restoration in the event of accidents. However, It is possible that this takes care of the accidents quickly but It can not be a proper way to decrease the real accidents as a scientific safety management system. therefore, For the effective safety management, the accidents in the past have to be investigated and advanced management system is needed and applied so as to control of the risk changing into ALARP level by evaluating the risk about the accident occuring probability and severity. This study shows the alternative cost and effective cost by considering the ways to reduce the risk efficiently and by executing the risk evaluation of crossing accidents occurred more than other accidents among railroad accidents. so, we will suggest the safety management method to invest the cost effectively.
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