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유재욱,유은종,Yoo, Jae-Wook,Yu, Eun-Jong 한국공간구조학회 2013 한국공간구조학회지 Vol.13 No.4
The Age-adjusted effective Modulus Method(AEMM) is one of the methods adopted for the construction stage analysis of concrete structures. The AEMM uses the aging factor to consider the effects of the varying concrete stress. In the aspects of computation time and the accuracy of the results, the AEMM is considered as one of most appropriate methods for construction stage analysis of tall building structures. Previous researches proposed appropriate values of the aging factor in the forms of graphs or using very simple equations. In this paper, an equation for estimating the aging factor as a function of rebar ratio in the section, compressive strength of concrete, notional member dimension, and age of concrete at the load application. The validity of aging factor proposed in this paper were examined by the comparison with the results of step-by step method.
한국 생명보험 산업 다국적기업과 현지기업들의 상호경쟁행위 차이발생 원인에 대한 연구
유재욱(Jae-Wook Yoo),김선미(Sun-Mi Kim) 한국인터넷전자상거래학회 2010 인터넷전자상거래연구 Vol.10 No.2
This study examines the effects of internal competencies and external environment on the competitive behaviors of multinational- and domestic-firms in Korean-life insurance industry. The findings of a multivariate analysis of variance reveal that local-market knowledge and experience of domestic firms more significantly influence the competitive actions and responses than monopolistic advantage of multinational firms. But, those differences become similar after adopting a bane assurance system because of imitative isomorphism of both multinational- and domestic-firms on their competitive behaviors. The present study contributes to an under-researched, yet very important area in strategic management. It is also valuable to practicing managers in life-insurance firms in Korea by adding their understanding of the ongoing competitive dynamics in the market.