http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
이우민 한국기계기술학회 2008 한국기계기술학회지 Vol.10 No.1
Dry CVT(Continuously variable transmission) consists of a driving pulley and a driven pulley joined by rubber V-belt. Each pulley consists of a fixed flange and a movable flange. The movable flange of the driving pulley has the centrifugal roller and a ramp plate in the flange. In this study, the formula with respect to relationship between a driving pulley and a driven pulley was derived, based on theoretical investigation about Dry CVT of a common and practical auto-bicycle (125cc). Also, the axial forces on the driving pulley and the driven pulley were analyzed.
이우민,우영환,이종원 중앙대학교 생산공학연구소 2000 생산공학연구소 논문집 Vol.9 No.1
본 연구에서는 포체계의 송탄장치분야에 대한 이론적인 신뢰도를 예측하고 내구도 시험을 통하여 얻은 신뢰도 값과 비교하여 그 차이점을 고찰하였다. 송탄임무 신뢰도를 예측하기 위하여 구조물과 그 구성품을 대상으로 고장계통도를 작성한 후, 고장률 산출 및 신뢰도 블록선도를 작성하고 신뢰도 계산 프로그램을 이용하여 송탄임무에 대하여 신뢰도 값을 예측하였다. 또한 송탄임무 신뢰도를 향상시키기 위해서 송탄제어기 및 포탄이송기의 설계개선이 필요하다는 것을 알았다. In this paper, ammunition handling mission reliability prediction of the howitzer was studied. The reliability prediction was compared with the reliability obtained from the endurance test for the prototype and the difference between two values was investigated. The reliability prediction of ammunition handling was made through the use of fault tree analysis, failure rate, reliability block diagram, and reliability prediction computer program. It was found that upgrading the design features of the ammunition handling control unit and the transfer arm was necessary to improve the ammunition handling reliability.
이우민 한국신학정보연구원 2019 Canon&Culture Vol.13 No.2
In this article, I argue that an exilic and post-exilic reading of ‘ērev rav in Exodus 12:38 justified and even reinforced ethnic separation for an identity boundary between the Israelites and “a mixed multitude” or “others.” For the study, this article applied Maurice Halbwachs’ collective memory theory, Jan Assmann’s cultural memory theory, and Norman Fairclough’s sociolinguistic theory to the historical and literary analysis of the phrase in Exodus 12:38 and other related biblical passages. Halbwachs’ theory became a foundation for further development of other related theories including Assmann’s cultural memory theory. The cultural memory theory contributes to the analysis and the understanding of ‘ērev rav in that the phrase would be a key word related not only to the exilic and the post-exilic memories about the past but also to their contemporary socio-political setting after exile. Furthermore, Fairclough’s theory can shed some light on the interrelationship between the ideological aspect of the phrase ‘ērev rav and the exilic and the post-exilic communities. In a multi-ethnic and multi-cultural social context during the exilic and the post-exilic period, it is possible that the exilic and the post-exilic communities understood the phrase ‘ērev rav in the Exodus narrative as a portent of the ethnic tension and the subsequent separation between Israelites and “others” rather than as a liberation for the multi-ethnic group as a whole. In the other way around, the phrase ‘ērev rav would reinforce the Israelite ideology of ethnic distinction, separation, and even discrimination to establish the identity of the exilic and the post-exilic community in their own social situation. This study also includes other related biblical texts in which the group of “others” represented by ‘ērev rav became a target to blame for the religious defilement of the Israelites against YHWH (Numbers 11:4) or the separation between the Israelites and other ethnic groups seems to be clear in the exilic and the post-exilic documents (Jeremiah 25:20; 50:37; Nehemiah 13:3; Ezekiel 30:5).
주택정책에 따른 서울 자치구별 주택시장 반응에 대한 연구
이우민,김경민,김진석 한국경제지리학회 2019 한국경제지리학회지 Vol.22 No.4
Though housing market varies spatially, housing policy is limited in reflecting detailed regional differentiation. This study looked at the differences in Seoul Gu Districts’ response to housing policy for the efficient implementation of housing policies in the future. Housing policy index was established by each Gu-districts’ according to investigated housing policies from 2003 to 2018, weighted in two categories(financial/urban planning) and the status of designated areas. The VECM model was established to analyze the impact of the housing policy on the housing market. According to the analysis, although housing policies were established in response to market prices change, the impact of policies on prices was lower than the impact of vice versa. The housing policy’s impact to the housing market is limited in some areas in northeastern Seoul. These results show that there are differences in the responses to housing policy in Seoul districts’, and therefore detailed consideration of the differences in the regional aspects of housing policy is needed. 부동산의 물리적 특성상 주택시장은 공간적으로 다양하게 분화된다. 그러나 주택시장을 대상으로 시행되는주택정책은 지역에 따른 세부적 시장 분화를 반영하는데 한계점을 보이고 있다. 본 연구는 향후 주택정책의 효율적인시행을 위해 자치구별 정책에 대한 반응의 차이를 알아보았다. 2003년에서 2018년까지의 주택정책을 월별로 조사하고 두 종류로 구분하여 가중치를 부여한 뒤 각 자치구의 지정지역 현황에 따라 자치구별 주택정책지수를 수립하였다. 주택정책지수가 자치구별 아파트시장에 미치는 영향을 분석하기 위해 VECM 모형을 구축하고, 이를 기반으로 충격반응분석과 분산분해분석을 시행하였다. 분석 결과 주택정책은 시장가격변화에 반응하여 수립되나 반대로 주택정책이 주택가격에 미치는 영향력의 크기는 주택가격이 주택정책에 미치는 영향에 비해 미미한 것으로 나타났다. 또 주택정책이 주택 가격에 유의한 효과를 미치는 지역은 서울 동북권 위주의 일부 지역에 한정되는 것으로 확인되었다. 이와 같은 결과는 서울 내에서도 자치구별로 주택정책에 대한 반응에 차이가 존재하며, 따라서 주택정책 시행 시 보다 미시적인 지역별 반응 양상 차이에 대한 세부적 고려가 필요함을 보여준다.
초등과학에서 브레인라이팅 활용 수업이 학생의 실험설계능력과 과학적 의사소통능력에 미치는 효과
이우민,최선영 한국초등과학교육학회 2019 초등과학교육 Vol.38 No.4
The purpose of this study was to investigate the effect of brainwriting instruction on students’ experimental design and scientific communication ability in elementary science class. For this purpose, a brainwriting learning for science class was developed and applied. The objects of this study were the 4th graders of both an experimental class (24 students) and a comparative class (24 students) at the N elementary school located in Incheon city. The results of the study were as follows; First, as a result of examining the difference in the experimental design ability between experimental group and comparative group, the experimental group showed higher than the comparative group, it was statistically significant difference(p<.05). Second, a scientific communication ability of the experimental group after applying this program was higher, it was statistically significant differences (p<.05).