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The Production and Dissemination of Agricultural Knowledge at U.S. Research Universities
이유환,Gregory D. Graff 한국농촌경제연구원 2017 농촌경제 Vol.40 No.S
This paper analyzes food and agriculturally-related knowledge production and transfer for 114 top-tier U.S. research universities from 1993 to 2015, to understand the role of the Land-Grant universities in promoting commercial innovation and regional economic development in this sector. We utilize two empirical methods: (1) a panel analysis of the knowledge production function (KPF) for research productivity and (2) an analysis of variance (ANOVA) for the role of the Land-Grant universities in such knowledge production. Output of research publications exhibits decreasing returns to scale for all sub-fields, but cost advantages and mean research (gestation) lags vary by sub-field. The mean number of research publications by the Land-Grant universities is much higher than non Land-Grant universities, especially in the Central region of the U.S. These results demonstrate how specialization by Land-Grant universities in agricultural R&D contributes to commercial innovation within a diffuse yet regionalized industry. Moreover, the main context and results of this paper would suggest some important implications to the study of the system of food and agricultural R&D and commercial innovations in Korea.
디지털 전환시대에 따른 ICT 제조기업의 혁신생태계 및 혁신성과에 관한 연구
이유환 한국인터넷전자상거래학회 2022 인터넷전자상거래연구 Vol.22 No.6
Recently, since the digital transformation waves have impacted the economic system and industry structure, conventional technology and business have been changed via the convergence of manufacturing and service, general business and platform business, etc. In this regard, this paper explores the innovation ecosystem and innovation performance of ICT manufacturing firms with respect to government innovation and R&D policy. This paper attempts to utilize cross-sectional data from 333 ICT manufacturing firms and to build two different types of innovation ecosystem models and the innovation performance model. First, the findings show that in the knowledge spillover channel model, ICT manufacturing firms tend to use IPRs and collaboration channels rather than the public domain channel. Second, in the innovation partnership model, ICT manufacturing firms prefer partnerships with private companies that are their buyers within the supply chain of the high-tech industry rather than utilizing their internal innovation resources and even local universities nearby. Third, the findings also show that in the innovation performance model, the product innovation performance of ICT manufacturing firms is highly associated with patents and R&D spending. Moreover, the product innovation performance of ICT manufacturing firms has a positive relationship with non-financial support of the government such as HR, technique, certifications, etc., but it has a negative relationship with the direct financial support of the government because it is more likely to consider about a moral hazard problem.
복합한방치료로 호전된 섬유근통증후군 환자에 대한 증례보고
이유환,김정희,이창환,김철홍,윤현민,Lee, Yoo-Hwan,Kim, Jung-Hee,Lee, Chang-Hwan,Kim, Cheol-Hong,Youn, Hyoun-Min 대한약침학회 2011 Journal of pharmacopuncture Vol.14 No.1
Objective : This study is to report the effect that taken by using oriental treatment on the patient with Fibromyalgia Syndrome(FMS). Methods : We have observed this case of patient treated by Acupuncture therapy, pharmacopuncture therapy and herbal medication. Results : There was improvement in condition of the patient who had Fibromyalgia Syndrome(FMS) after treated by using oriental treatment. Conclusion : Oriental treatments such as Acupuncture therapy, Pharmacopuncture therapy and herbal medication can be effective for the Fibromyalgia Syndrome(FMS).