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이동기,이철규,김정환,Lee, Dong-Ki,Lee, Cheol-Kyu,Kim, Jung-Hwan 한국벤처창업학회 2008 벤처창업연구 Vol.3 No.1
In this research, an empirical analysis was performed to determine the correlation between management performance and Empirical Research on the R&D investment for domestic venture businesses in each industry. Specifically, an empirical analysis for each industry was attempted not only to clarify the general hypothesis on the relationship between management performance and R&D investment for venture businesses but also to demonstrate that differences exist for each industry. Empirical analysis was conducted for eight industries with respect to the $2002{\sim}2006$ panel data extracted as investigative results from the "Investigation Report on Science and Technology R&D Activities" published by the Ministry of Science and Technology. Industrial classification was limited to the middle-level classification (2-digit) in the Korea Standard Industry Code (KSIC) owing to the limited number of panels. Although this research only verified the overall positive effect of R&D activities and funds for existing research on corporate value or productivity and management performance, it was able to document the difference for each individual industry and each business size unlike existing research. Furthermore, the reliability of the research results was enhanced by targeting companies that have been continuously conducting R&D and management activities using consistent 5-year panel data in the analysis. Again, this was something that existing research did not have. Finally, through the use of recent data from 2002 after the IMF economic crisis up to 2006 in the empirical analysis, this research proposed the problems due to the prevailing circumstances at the time of entering the advanced nation stage based on an empirical analysis; the prevailing problems during the pursuit of advanced nation status before the IMF crisis broke out were not tackled. The key empirical analysis yielded several results. First, capital and size of the labor force have a positive correlation with the management performance for the entire company or the venture business. This applies to all eight industries as the subjects of the analysis. Second, although the number of years since a company has been established can have positive or negative correlation with management performance for the entire company or venture business in specific industries, a definite overall trend cannot be identified. Third, R&D investment can be said to have an overall positive effect on corporate management performance. Fourth, the size of the research staff cannot be said to be a factor unilaterally affecting the management performance of the entire company or the venture business. Fifth, the number of years a research institute has been in operation, which was assumed to have a positive effect on the management performance of a company because of the accumulated R&D know-how -- definitely acts as a positive factor contributing to the management performance of a company.
형제선별검사로 유아기에 조기 진단된 심한 방광요관역류 1례
이동기,신윤혜,유재은,배기수,Lee Dong-Ki,Shin Yun-Hye,Yu Jey-Un,Pai Ki-Soo 대한소아신장학회 2004 Childhood kidney diseases Vol.8 No.2
저자들은 역류성 신질환 남아의 생후 6개월된 남동생을 대상으로 시행한 조기 형제선별검사에서 신손상을 보이지 않는 5단계의 좌측 방광요관역류를 발견할 수 있었다. 이후 요로감염의 발생을 방지하고자 하였으며, 이를 통하여 신손상발생의 위험을 줄일 수 있었기에 문헌고찰과 함께 보고하는 바이다. 또한 역류성 신질환 환아의 형제자매에서 방광요관역류 여부에 대한 형제선별검사를 적극적으로 시행할 것을 제안하는 바이다. We report a case of severe(gradeV) unilateral vesicoureteral reflux(VUR) without any renal damage in a 6-month-old boy through the early sil)ling screening test for VUR, whose old brother had reflux nephropathy. The early detection of VUR aroused us to take special precautions to prevent urinary tract infection in this patient. We believe that this approach was helpful to reduce the risk of renal damage in this patient and are reporting the case with a brief review of related literatures. It is our firm suggestion that screening for vesicoureteral reflux should be carried out in every child who has siblings with refluf nephrouathy.
현대주거의 기하조작에 의한 보이드 공간의 생성과 친환경적 특성에 관한 연구
이동기,Lee, Dong-Ki 한국주거학회 2010 한국주거학회 논문집 Vol.21 No.6
This study is aimed to grasp the spatial characteristics exhibited in the modern housing architecture from the aspect of a geometrical manipulation, which transforms basic geometrical shapes and persue the formative diversity, to identify and verify the various characteristics of spatial structure in modern housing architecture. In this regard, this paper analyze and identify the influences of the void spaces that are created by geometrical manipulations on housing architecture, in terms of morphological and environmental aspects. Theoretical approaches define the concept of geometrical manipulation according to the characteristics of residence and examine the spatial features of void spaces. Additionally, case studies result in the classification of void spaces that are created by geometrical manipulation. Furthermore, to understand environment-friendly characteristics of the void space, the researcher elicited the factors that can affect environment friendly housing from previous studies, and analyzed their correlation between those factors and the void spaces that are classified.
Towards Future Mobile Network: Harnessing the Transformative Nature of NFV and SDN
이동기,박종한,박진효,Lee, D.K.,Park, Jong-Han,Park, Jin-Hyo The Korea Institute of Information and Commucation 2014 정보와 통신 Vol.31 No.6
Mobile operators today face yet another critical challenge as technology lifecycle becomes increasingly short and also as heterogeneous and complex network becomes exceedingly expensive and difficult to manage. With extremely competitive market and demanding users, the overall revenue structure is expected to get worse. A network architecture based on software-defined networking (SDN) and virtualization techniques gives operators greater opportunity to build cost-effective and efficient alternative to the legacy. In this work we review our Carrier Cloud as a future mobile network infrastructure that exploits both SDN and NFV in order to increase the operator agility, reduce the cost, and even disrupt the vendor landscape. This new architecture will not be fully adopted by the conservative operators at once. Technological hurdles have to be overcome, and a clear understanding of operational differences must be preceded.