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김인걸(Kim, In-Geol) 역사학회 2014 역사학보 Vol.0 No.223
This article tries to introduce the research trends of the past two years. This article focuses on three major features of recent research trends, entrusting details to the researchers from each period. The three major features are as follows: first, the field of socioeconomic history is generally shrinking and macroscopic approaches are becoming harder to apply; second, the limits and possibilities of using materials is emerging; third, the methodologies of ‘East Asian History’ or ‘Transnational History’ show both significances and difficulties in terms of choosing their subject of research. On the first feature I think there were three ways that modern historical studies dealt with a series of problems. One way was to both rationalize existing systems and consolidate their foundations. Another way revealed the mechanisms of power that were exercised over every layer of society, overcoming the crude discourse of class struggle. And another, qualitatively different approach, was to evade serious questions and settle on the field of discourse. On the second feature I argue that many hardships remain in accessing some materials, especially when they are related to key interests of nations and people in power. This fact is immediately met with assertions that researchers are able to utilize materials on-line with the development of digitalization, and that one cannot blame the status of materials for his/her state of research. On the third feature I worry that historians are not prepared to render a striking change in the dominant paradigm. Of course there are certainly a great number of attempts to make a breakthrough in the academia of Korean History. However, audacious challenges against the existing macroscopic discourses are not easy to find. The strenuous efforts of ‘Transnational History’ to overcome the modern historiography is worth further investigation, but I do not see it as a successful alternative to previous efforts because thus far they have failed to acquire the relevance of ‘National History.’
확정기여형 퇴직연금의 자산운용 성과 분석 및 정책적 시사점
성주호 ( Joo Ho Sung ),김인걸 ( In Geol Kim ),최윤호 ( Yun Ho Choi ) 한국연금학회 2013 연금연구 Vol.3 No.2
본 연구에서는 금융시장 환경변화인 임금상승율, 자산할당방법, 투자기간에 따른 확정기여형 퇴직 연금자산운용 결과에 대한 사후검증과 예측을 통해 자산운용의 수익성을 살펴보고 있다. 이를 위하여 한국은행의 국고채 과거 금리지표(2005-2012), 한국신용평가(KIS)의 채권의 과거 수익률(2005-2012) 그리고 주식의 경우는 KOSPI200을 사용하였다. 적용되는 자산운용 시나리오는 실무에서 보편적으로 적용하는 12개를 설정하였다. 즉, 확정금리상품에 대해 5가지 그리고 주식과 채권의 혼합비율에 따라 7가지 자산할당방식을 각각 가정하였다. 이에 근거한 사후분석 결과로는 전체적으로 확정금리형 상품에 비해 주식·채권 혼합형이 상대적으로 높은 수익률을 나타내고 있다. 주요 시사점으로는 현행 확정기여형(DC) 자산운용규제는 금융환경 변화에 대한 소극적 자산운용으로 규정할 수 있다. 따라서 향후 일정수준 이상 적극적으로 자산운용을 할 수 있도록 현행 규제를 완화, 보완할 필요성이 있다. In this study, we examined the investment performance of DC retirement pension funds in Korea financial market using ex-post analysis with experienced salary rates and returns during 2005-2012. Further, for testing the efficiency of current asset allocation, we used the yields on bonds provided by KIS(Korea Investors Service) and KOSPI 200 index and guaranteed market interest rates. In particular, 5 different scenarios investing in guaranteed fixed deposit products and 7 different scenarios investing in stocks and bonds are set up for testing. And then, their investment performances each are compared in the same conditions. We find out that in general, investing in stocks and bonds outperformed investing in guaranteed fixed deposit in Korea financial market, as in global market. Hence, we would suggest that current investment regulations have to be modified following global standards and practices: that is, in a direction to weakening the current DC asset allocation regulation.
포장가속시험시설의 동역학 힘 예측 및 강도설계에 관한 연구
김낙인,양성철,박용걸,Kim, Nak-In,Yang, Sung-Chul,Park, Yong-Geol 한국강구조학회 2001 韓國鋼構造學會 論文集 Vol.13 No.2
본 연구에서는, 포장가속시험시설이 사용 중 발생 가능한 동역학적 힘을 예측하기 위해, 이미 개발되어 운용중인 모형시험시설을 이용하여 차량 운동방정식을 구하고, 모형시험시설과 포장가속시험시설(KALES : Korea Accelerated Loading and Environmental Simulator)의 상사관계를 이용하여 KALES가 운행 중 발생할 수 있는 동역학적인 힘을 예측하였다. 이를 기반으로 실제 차량 구조부 형상에 대한 상세설계를 전산해석과 피로수명평가 방법을 이용하여 수행하였다. 해석 결과, 동역학적 모형화 및 피로강도 해석기술을 기반으로 설계된 KALES는 시험 중 발생되는 사용하중 이력에 대해서 피로 강도적으로 충분한 안전성이 확보되도록 설계됨을 확인할 수 있었다. The dynamic force estimation and strength design of KALES(Korea Accelerated Loading and Environmental Simulator) are studied. The KALES is continuously rotating the test track and subjected to the dynamic or impact forces during operation since the track is composed of straight and curved line. To estimate the dynamic equation for the model car which was already made is derived with analytical and experimental techniques. Using similarity relationships between the model car and KALES, the dynamic force and stability properties for KALES can be predicted. The stress analysis and fatigue life estimation of KALES is also estimated with the calculated dynamic load. From the stress analysis and fatigue life estimation results, it was found that the design of KALES is safe.