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유한요소법에 의한 PREFLEX BEAM의 용접열분포 특성에 관한 연구
방한서(HAN-SUR BANG),주성민(SUNG-MIN JOO),김하식(HA-SIG KIM) 한국해양공학회 2004 韓國海洋工學會誌 Vol.18 No.2
Preflex beam is a method of construction designed to hold the pre-compressive stresses over the concrete pier by the preflexion load. During the fabrication of the girder, welding causes residual stresses. The welding residual stresses must be relieved in order to generate the accurate compressive pre-stresses. In this study, to determine the thermal distribution characteristics on the girder by welding, both three-dimensional finite element analysis and two-dimensional finite element analysis, in a quasi-steady state, is carried out. After comparing each result between the three-dimensional analysis and the two-dimensional analysis, finite element analysis is carried out against the actual girder, and the welding thermal distribution characteristic over the preflex beam is analyzed. It is possible to provide the input data for the analysis of the welding residual stresses.
포스터 발표 : 포스터 연제 ; 한국인에서의 Endothelial Nitric Oxide Synthase의 유전적 다형성과 당뇨병성 신중과의 관계
신영신 ( Sin Yeong Sin ),백상흥 ( Baeg Sang Heung ),박철휘 ( Park Cheol Hwi ),고윤호 ( Go Yun Ho ),장기욱 ( Jang Gi Ug ),승기배 ( Seung Gi Bae ),장윤식 ( Jang Yun Sig ),최규보 ( Choe Gyu Bo ),방병기 ( Bang Byeong Gi ) 대한신장학회 2000 춘계학술대회 초록집 Vol.19 No.2
김흥식(Kim Heung-Shik),방성식(Bang Sung-Sig) 충남대학교 회계연구소 2006 회계논집 Vol.7 No.1
본 연구는 스톡옵션의 도입이 기업의 주가 및 재무성과에 미치는 영향을 실증 분석하였다. 실증 분석 방법으로는 로짓(Logit)분석을 사용하였으며, 기업 성과에 관련해서는 주식수익률, 재무성과 측정치로는 경상이익률, 대리인비용 측정치로는 비용효율성비율을 사용하여 스톡옵션 도입 전과 스톡옵션 도입 후, 스톡옵션을 도입한 기업과 도입하지 않은 기업을 비교 분석하여 스톡옵션이 기업에 미치는 영향에 대해 알아보았다.<BR> 실증분석결과, 첫째, 스톡옵션을 도입한 기업의 경우 도입하기 전 보다 주식수익률계수 및 경상이익률계수가 양의 값을 가지며 유의한 차이를 보이고 있음을 볼 때, 스톡옵션의 도입이 주식시장과 재무성과에 미치는 영향은 긍정적인 것으로 나타났다. 둘째, 유사기업 분석에서는 주식수익률계수와 경상이익률계수가 차이가 없는 것으로 보아 다른 기업들에 비해 주가가 저평가 되어있다는 것을 알리고, 재무성과가 낮은 기업이 스톡옵션을 도입한다는 것을 알 수 있었다. 그러나 비용효율성비율의 경우 동일기업 비교분석과 유사기업 비교분석에서 모두 유의한 차이를 발견하지 못하였는데, 이것은 스톡옵션이 대리인 비용의 감소에는 영향을 주지 못했음을 보여주고 있다.
ECONOMIC VIABILITY TO BeO-UO<sub>2</sub> FUEL BURNUP EXTENSION
Kim, S.K.,Ko, W.I.,Kim, H.D.,Chung, Yang-Hon,Bang, Sung-Sig,Revankar, Shripad T. Korean Nuclear Society 2011 Nuclear Engineering and Technology Vol.43 No.2
This paper presents the quantitative analysis results of research on the burnup effect on the nuclear fuel cycle cost of BeO-$UO_2$ fuel. As a result of this analysis, if the burnup is 60 MWD/kg, which is the limit under South Korean regulations, the nuclear fuel cycle cost is 4.47 mills/kWh at 4.8wt% of Be content for the BeO-$UO_2$ fuel. It is, however, reduced to 3.70 mills/kWh at 5.4wt% of Be content if the burnup is 75MWD/kg. Therefore, it seems very advantageous, in terms of the economic aspect, to develop BeO-$UO_2$ fuel, which does not have any technical problem with its safety and is a high burnup & long life cycle nuclear fuel.
成基泰,金知學,李興吉,辛逸善,金芳植,閔彰東 忠州大學校 1996 한국교통대학교 논문집 Vol.31 No.2
For resonable curriculum modification and development corresponding with training to competent high-level, engineering as educational object of industrial university this research was carried out as following process ; 1. Collection and analysis of present curriculum in civil engineering department of domestic industrial university including the curriculum of foreign industrial university. 2. Organization of advisory committee for insustry school cooperation and visiting insustry and interview. 3. Organization of all Korea Civil Engineering Department chief committe. 4. Result of research through the questionnaire for all Korea representative industry and academic could be summarized as follows : 1) Wide contact between college education and industry field should be strengthened, and field experiment education was strengthened to consider of ability, and construction management was edited compulsory major. 2) For the adapting trend of variety and subdivision of construction skill EDPS education was edited compulsory 3) The curriculum was endeavoured to fundamental science. 4) The curriculum enlarged the range of the optional subject which is able to manage the flexible curriculum for characterization of each local industrial university and endeavoured consideration of field adapting ability by classifing the civil design into Construction design and integration, Hydraulic design and integration, Earth design and integration. 5) The curriculum of academic theories and experiments were unificated into single subject for the purpose of flexible management 6) The curriculum was edited in the ration which is 20 to 80 between liberal and majoring arts in presentation on the basis of all accounts of opinion from the academic and field worker, and emphasized the importance of language education editing industrial English conversation because of demand of much ability along with foreign advance of construction technique. 7) The curriculum was emphasized in the necessity of the field experimental trained based on the information by all opinion. By operationg this curriculum, it is expected that the relationship between industry and academic will be efficiently considered.