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Development of Rehabilitative and Assistive Systems
Jongbae Kim,Won‐,Kyung Song,Seong Pil Kim,Kyung‐,Bae Jang,Dae‐,Sung Park,Kwang‐,Ok An,Myung‐,Joon Lim,Bum‐,Suk Lee 동국대학교 정보융합기술원 2010 International Journal of Assistive Robotics and Sy Vol.11 No.1
Korean Ministry of Health and Welfare established the Research Institute (NRCRI) within National Rehabilitation Center, Seoul, Korea one and half years ago in order to perform rehabilitation research and development projects which can improve the quality of life of Korean with disabilities. NRCRI is engaged in several efforts to develop rehabilitative and assistive devices and systems based on the needs of Korean with disabilities. As we began to plan the research tasks, we investigated what kinds of difficulties they suffer and what Assistive Technologies are needed by conducting a comprehensive survey study and having meetings with persons with diverse disabilities as the first research project. Based on the results of this needs survey, we planned and executed several research and development projects. Whereas some of them are performed with low or middle technologies, others required high technologies which are used in developing robots, automobile, and airplane. In this article our research and development works in the NRCRI will be introduced briefly.
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An Empirical Distribution Hypothesis for Fund Returns
Kim,Dae‐,Lyong 동국대학교 경영연구원 2005 경영과 사례연구 Vol.28 No.1
The most convenient distribution assumption for describing the empirical distribution of financial return is, currently, the family of stable or the finite mixtures of normal. This distribution assumption is, however, made on the real rates of returns on common stocks. The present paper focuses on applications of stable Paretian distribution and the mixtures of normal distribution hypothesis for mutual fund return because previous researches on this field are seldom found in the financial literature of the mutual fund business. Monthly mutual fund returns of 50 mutual firms are used as database. The stability and the components of normality under likelihood ratio test suggested by Fama & Roll and Kon, respectively are implemented.
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