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정호원 ( Ho Won Joung ) 연세대학교 사회과학연구소 2007 社會科學論集 Vol.38 No.1
This paper tries to give explanations on relationship between Kant`s notions of freedom and law. Kant`s freedom is known to be realized through its antonym, namely coercion, which is for Kant another name of law. Why for Kant freedom needs coercion, and why for Kant freedom is possible just due to its opposite - these questions will be answered by this study. Meanwhile it will be suggested that Kant`s philosophy of law should be interpreted as a political philosophy, and also the reason why.
가스터빈 모사 연소기에서 선회 확산 화염의 연소특성 해석
정대로(Dae-Ro Joung),허강열(Kang-Yul Huh) 한국연소학회 2007 KOSCOSYMPOSIUM논문집 Vol.- No.-
The firtst-order conditional moment closure (CMC) model is applied to CH4/air swirl diffusion flame in a gas turbine model combustor. The flow and mixing fields are calculated by fast chemistry assumption with SLFM library and a beta function pdf for mixture fraction. RNG k-e model is used to consider the swirl flame in a confined wall. Reacting scalar fields are calculated by elliptic CMC formulation with chemical kinetic mechanism, GRI Mech 3.0. Validation is done against measurement data for mean flow and scalar fields in the model combustor [1]. Results show reasonable agreement with the mean mixture fraction and its variance, while temperature is overpredicted as the level of local extinction increases. The second-order CMC model is needed to consider local extinction with considerable conditional fluctuations near the nozzle.
정석언(SEOK-EON JOUNG) 전력전자학회 2007 전력전자학술대회 논문집 Vol.- No.-
In this paper, a low cost and high reliability control scheme is proposed for 400㎐ UPS system operated in parallel. The proposed control scheme is consisted of two parts which are synchronization and load sharing control. The synchronization control is achieved by discrete logic ICs and analog circuit. The load sharing control is realized by current transformers (CTs) without any controller. Therefore, This proposed control scheme is rather simple and the cost may be decreased, compared with control scheme using expensive controller such as DSP and CAN. The practical feasibility of the proposed control scheme is proved by analysis and simulation.
鄭英文(Joung, Youngmoon) 중앙어문학회 2020 語文論集 Vol.83 No.-
사행록은 사신 또는 그들의 수행원이 사행 노정에서의 견문과 체험을 기록한 것이다. 동아시아 보편성을 가진 기록문학이며, 경험한 소재를 대상으로 하는 문학이라는 의미를 지니고 있어 체험, 객관적 전달, 사실성을 핵심으로 하는 문학 작품군이다. 최현의 『조천일록』은 ‘문견사건’이라는 보고서로서의 공적 일기와 개인기록으로서의 사일기를 병렬적으로 배치하는 방식으로 기록하였다. 공적 일기는 중국지역을 배경으로 매일의 일정과 행적을 기록한 반면에 사적 일기는 중요한 행적을 중심으로 취사선택한 기록이다. 최현의 『조천일록』은 한시와 운율이 없는 비문학을 포함하고 있는 기록이지만, 현대에 이르러 문학의 영역에서 다루어지고 있다는 점에서 기록문학의 범주에 포함하고 있다. 최현은 노정에서의 견문한 문물이나 제도, 자연 풍경이나 풍습 등 경험과 견문의 대상을 세밀하게 관찰하고 건조하게 기록하였다. 공식적인 일정에 한정하여 기록하면서 주관적 감상이나 개인적인 성찰이 여타 사행록보다 적게 발견되지만, 이는 1608년의 시대적 상황에 영향을 받아서이다. 최현은 서장관으로서 중국의 정세를 파악하고 조정에 보고해야 할 임무가 있었고, 이러한 임무를 달성하기 위해 수집한 정보를 정확하게 사실적으로 분석하였다. 이러한 분석을 위해 중국조정에서 발간한 통보는 물론 현장에서 직ㆍ간접으로 수집한 자료들을 활용하였다. 최현의 일기는 매우 사실적인 내용을 기록하고 있는데, 개인적 심회를 드러내기도 했다. 이러한 정서적인 표현 등은 조천일록을 기록문학으로 이해할 수 있는 근거를 제공해 주었다. Envoys" records include the knowledge and experiences of envoys or their attendants acquired over the course of their journeys as envoys. It is a documentary literature reflecting the universality of East Asia; since it has the meaning of literature targeting the subject of experience, it is a literary group that focuses on experience, objective transmission, and realism. Choi, Hyun"s <Jocheon Ilrok> was recorded in the parallel arrangement of a public diary as a report called the “visiting case” and a private diary as a personal record. The public diary recorded daily schedules and activities in the background of a Chinese region, whereas the private diary comprised selective records centering on important activities. Choi, Hyun"s <Jocheon Ilrok> is a record containing Chinese poetry and non-literature without rhyme; however, it is included in the documentary literature category in the aspect that it is included in the field of literature in the modern era. CHOI, HYUN carefully observed and objectively recorded his knowledge of aspects such as civilizations and systems and natural landscapes and customs, which he had experienced during his journey. Since Hyun’s recording was limited to his official schedules, his work contains less subjective appreciation and personal reflection compared to the records of other envoys, which were influenced by the social situation of 1608. As the official in charge of recording (Seojanggwan), Choi, Hyun’s mission was to understand the situation in China at the time and report it to the court; he accurately and realistically analyzed the collected information to achieve the goals of this mission. To perform such analysis, he used the data collected both directly and indirectly in the field, as well as the notifications published by the Chinese court. The contents of Choi Hyun"s diary were mostly very realistic; however, he recorded his personal feelings in the diary, as well. These emotional expressions provided the basis for including <Jocheon Ilrok> in the documentary literature category.
Adriamycin을 투여한 흰쥐의 간 지질대사에 미치는 비타민 A와 E의 급여 효과
정영아(Young-Ah Joung),양경미(Kyung-Mi Yang),서정숙(Jung-Sook Seo) 한국식품영양과학회 1993 한국식품영양과학회지 Vol.21 No.6
Adriamycin의 투여로 변화되는 생체내 지질과산화 대사에 대하여 비타민 A 및 E의 급여와 이들의 동시 급여의 효과를 살펴보기 위해 이유한지 1주된 Sprague-Dawley 흰쥐를 6주간 사육하였다. 대조군을 제외한 모든 실험군에게 매주 일정시각에 ADR (2㎎/㎏/week)을 복강주사 한 후 비타민 A와 E의 급여효과를 관찰하였으며 그 결과는 다음과 같다. 간 조직에서의 과산화 지질 함량은 ADR투여로 현저한 증가를 보여주었고, 비타민 A와 E급여가 이들의 생성을 저하시켰다. Catalase 활성도는 ADR의 투여로 증가된 반면 GSH-Px는 감소되는 경향이었다. 이에 비타민 A나 E의 급여로 ADR 투여에 의한 효소 활성도의 변화를 완화시켰다. SOD의 활성은 ADR의 투여로 유의적인 변화는 나타나지 않았지만 비타민 A와 E 동시 급여군에서 그 활성도가 현저히 유도되었다. 간 미토콘드리아의 지방산조성은 ADR 투여로 큰 변화는 없었으나 비타민 E급여군이 비타민 A급여군 보다 방어효과가 더 좋았다. 또한 지질성분들의 변화는 ADR의 투여로 중성지질과 콜레스테롤 함량이 증가하였고 비타민 A의 급여에 의해 이들 함량이 유의적으로 감소되었다. This study was conducted to evaluate the effect of dietary supplementation of vitamins A and E on hepatic lipid metabolism in adriamycin (ADR)-treated rats. Male Sprague-Dawley rats were assigned to 5 groups according to the dietary supplementation of vitamin A or E. Except control rats, a dose of 2㎎ ADR/㎏ of B. W. was injected to these animals intraperitoneally on the same day every week. Lipid peroxide values of liver were elevated by ADR treatment. But dietary supplementation of vitamin A or E significantly reduced these values. Catalase activity in rat liver was increased by ADR treatment, but glutathione peroxidase (GSH-Px) activity was decreased. This effect was somewhat modified by feeding dietary vitamin A or E. Superoxide dismutase (SOD) activity in rat liver was not changed by ADR treatment, but the combined use of ADR, vitamins A and E significantly induced this activity. Fatty acid composition of liver mitochondria was not affected by ADR treatment. The contents of hepatic triglyceride and cholesterol were elevated by ADR treatment. Dietary vitamin A reduced the increased hepatic triglyceride and cholesterol contents in ADR-treated rat.