Institution for Regional Innovation System: The Korean Case

Kang,Byung-Joo,Oh,Deog-Seong 세계과학도시연합 2015 World Technopolis Review Vol.4 No.2

There is an implicit assumption in most regional innovation policy studies that once a policy has been made the policy will be implemented. This assumption is not valid for regional innovation policies formulated in many countries. This assumption rests upon certain political and organization conditions. It is frequently said that regional innovation system in Korea is one of the successful cases because of properly established institution for the implementation of innovation policies. The components of institution for innovation are defined in this article. For the analysis of institution for regional innovation system in Korea, three aspects such as organization, policies & programs, and governance structure were taken into account. Institution for regional innovation system in Korea is analyzed with three aspects: (1) organization for policy implementation, (2) innovation policy, and (3) governance structure. Firstly, organizations for innovation in Korea are composed of three categories such as organizations for policy formulation, organizations for policy implementation and agencies for coordination. Secondly, there are two categories of policies for innovation: (1) policies for the enhancement of national competitiveness and policies for the regional innovation capacity building, and (2) policies for fostering manpower and policy for regulatory reform. Thirdly, innovation governance in Korea is composed of three layer structure: (1) top level governance which is composed of two committee, three ministries and two agencies, (2) local level governance such as one innovation related offices and one center for regulatory reform, and (3) one category of agency for coordination as a regional platform.

아동들의 스트레스 생활사건과 대처방법 및 사회적 지지와의 관계연구

이강오,나덕미,박경애 조선의대 1995 The Medical Journal of Chosun University Vol.20 No.2

IEEE 802.15.4 MAC/PHY를 이용한 TDMA 기반 Superframe 네트워크 구현

오석호 ( Sukho¸ Oh ),김강묘 ( Kang-myo Kim ),정하연 ( Hayeon Jung ),김기형 ( Ki-hyung Kim ),유승화 ( Seung-wha Yoo ) 한국정보처리학회 2011 한국정보처리학회 학술대회논문집 Vol.18 No.1

산업장 기반 모니터링 시스템에 무선 네트워크 기술의 도입은 시스템 도입 및 유지보수에 있어 반드시 필요하다. 무선 네트워크 기반의 산업장 모니터링을 위해 현재 USN 네트워크에서 광범위하게 사용되고 있는 IEEE 802.15.4 하드웨어 및 MAC 을 이용하여 Freequency Hopping을 수행하는 Superframe 기반의 TDMA 기술을 구현하였다.

A Study on Joke Misinterpretation in L2 Settings: Viewed from the Benign-Violation Theory

Hyun-jee Kang,오명기(Myung-ki Oh) 현대문법학회 2018 현대문법연구 Vol.99 No.-

Hyun-jee Kang and Myungki Oh. 2018. A Study on Joke Misinterpretation in L2 Settings: Viewed from The Benign-Violation Theory. Studies in Modern Grammar 99, 161-176. This paper examines cases in which Korean college students might misinterpret superiority, incongruity, and sarcastic English jokes. In parallel the writer tries to bring to light possible background reasons for their misinterpretation from the perspective of the Benign-Violation Theory’ concepts of norm violation, commitment, and psychological distance. Arguably Korean college students are likely to misinterpret English humor codes influenced by their ingrained belief system of strict moral standard as well as insufficient exposure to particular genres of English jokes.

중환자 가족의 사회적 지지, 부담감 및 삶의 질과의 관계 연구

이강오,김유선 朝鮮大學校 附設 醫學硏究所 2006 The Medical Journal of Chosun University Vol.31 No.2

Background and Objectives: The study is aimed at identify social support, burden and quality of life in Intensive Care Unit (ICU) Patient's family, to investigate the correlation among social support, burden and quality of life in ICU patient's family. Materials and Method: The data for this study were collected through a research which was conducted to ninety seven in ICU patient's family in C university hospital in Gwangju City, from August 16 to October 23, 2004. The instruments used for this study are the social support measurement tool developed by Brandt & Weinert (1981) and adapted and revised by Ga-SiI Oh & Mi-Hyee Seo, the burden measurement tool developed by Montgomery's and adapted and revised by Sun-Hak, Oh, the quality of life measurement tool developed by Seong-GiI Min in accordance with the guidelines of WHOQOL. The data collected were analysed using SPSS Win to descriptive statistics, t-test, ANOVA, Scheffe & Tukey post-validation test, and Pearson's correlation. Results: Regarding correlations, while there was a significantly positive correlation between social support and quality of life. There was significantly negative correlation between burden and quality of life. Also, there was significantly negative correlation between social support and quality of life. ConclusIon: There were close correlation among social support, burden, and quality of life in ICU patient's family. Thus, the establishment of nursing interventional program is necessary to promote quality of life in ICU patient's family.

A Study of Efficient Connection using Mobility Property in Mobile Ad-hoc Network

Youngj-jun Oh1,Kang-whan Lee 보안공학연구지원센터 2014 International Journal of Multimedia and Ubiquitous Vol.9 No.12

In this paper, we proposed the context-awareness routing algorithm DDV (Dynamic Direction Vector)-hop algorithm at Mobile Ad-hoc Networks. Existing algorithm in MANET, it has a vulnerability that the dynamic network topology and the absence of network expandability of mobility of nodes. This proposed algorithm forms cluster formation using a range of direction and threshold of velocity by base-station, and we calculate exchange cluster head node probability using direction and velocity for maintaining cluster formation. DDV algorithm forms a cluster based on the cluster head node. As a result of simulation, our scheme could maintain the proper number of cluster and cluster members regardless of topology changes. In response to maintain cluster formation, we prove a continuous connection between nodes.

Superconducting MgB2 Wire Drawing Considering Anisotropic Hardening Behavior and Hydrostatic Effect

Young‑Seok Oh,Ho Won Lee,Kook‑Chae Chung,Duck‑Young Hwang,Seong‑Hoon Kang,Jeong Whan Yoon 대한금속·재료학회 2022 METALS AND MATERIALS International Vol.28 No.7

Numerical modeling was conducted to investigate the deformation behavior of powder mixture during multi-pass drawingprocesses for multi-filamentary MgB2wire. A modified Drucker-Prager Cap (DPC) model with an elliptical cap surface usingthe new material characterization method was developed to capture the anisotropic hardening behavior and hydrostatic effectof the powder mixture. A number of uniaxial die compaction, cold isostatic pressing, diametrical compression, and uniaxialcompression tests were conducted using different powder densities to characterize the modified DPC model. A commercialfinite element software ABAQUS with a user subroutine was used to simulate the drawing of the MgB2wire. The densityand area fraction of the powder mixture during the wire-drawing process were verified with experimental results. The differencein packing density at the inner and outer filaments of the MgB2wire was successfully captured by simulation. Inaddition, the effect of the initial packing density on the superconducting properties of MgB2wire was numerically studied. It is shown that the increase in the superconducting area, which results from a high initial packing density, should be moreeffective compared to the increase in the grain connectivity in enhancing the critical current properties for the MgB2wirewhen the final packing density is saturated after a number of drawing processes.

연료 혼합비율 및 산소농도가 노말데케인/에탄올 혼합연료의 점화특성에 미치는 영향

오채호(Chae Ho Oh),강기중(Ki Joong Kang),최경민(Gyung Min Choi) 대한기계학회 2017 大韓機械學會論文集B Vol.41 No.11

본 연구는 대체연료 개발 및 국제환경규제에 대응하기 위하여, 노말데케인과 에탄올 혼합연료의 조성 및 온도 변화가 자착화 특성에 미치는 영향을 수치적으로 해석하였다. 해석용 프로그램으로는 CHEMKIN-PRO를 사용하였고, 반응모델은 LLNL모델을 이용하였다. 수치해석 결과를 통해 저온 연소반응이 일어나는 1000K 이하에서는 에탄올의 몰 비율이 증가함에 따라 점화지연 시간이 증가하는 현상을 확인하였다. 에탄올의 높은 옥탄가로 인해 에탄올의 높은 비율은 점화를 일으키는 OH라디칼의 농도증가를 지연시키기 때문이다. 배기가스 재순환을 적용하기 위해 혼합연료에 산소농도를 변화하여 수치해석을 하였다. 산소농도가 감소함에 따라 전체 점화지연시간은 증가하게 되고, 이는 질소가스가 연소실 내에 열부하로 작용하기 때문이다. To cope with the development of alternative fuels and international environmental regulations, this study provides a numerical analysis of the effects of composition and temperature changes of n-decane and ethanol on auto-ignition characteristics. CHEMKIN-PRO is used as the analysis program and the LLNL model is used as the reaction model. The numerical results show that the ignition delay time increases as the mole fraction of ethanol increases for temperatures below 1000 K, where low temperature reactions occur. Because of the high octane number of ethanol, the high percentage of ethanol delays the increase in the concentration of OH radicals that cause ignition. The oxygen concentration in the mixture is changed to apply the exhaust gas recirculation and a numerical analysis is then performed. As the oxygen concentration decreases, the total ignition delay time increases because the nitrogen gas acts as a thermal load in the combustion chamber.

Scanning tunneling microscopy investigation of nano-structured α-K5PW11(M x OH2)O39(M = Mn(II), Co(II), Ni(II), and Zn(II)) Keggin heteropolyacid catalyst monolayers.

Choi, Jung Ho,Kang, Tae Hun,Bang, Yongju,Yoo, Jaekyeong,Jun, Jin Oh,Song, In Kyu American Scientific Publishers 2014 Journal of nanoscience and nanotechnology Vol.14 No.11

<P>Nano-structured α-K5PW11(M x OH2)O39 (M = Mn(II), Co(II), Ni(II), and Zn(II)) Keggin heteropolyacids (HPAs) were investigated by scanning tunneling microscopy (STM) and tunneling spectroscopy (TS) measurements in order to elucidate their redox property and oxidation catalysis. HPA molecules formed two-dimensional self-assembled monolayer arrays on highly oriented pyrolytic graphite (HOPG) surface. Furthermore, HPAs exhibited a distinctive current-voltage behavior referred to as negative differential resistance (NDR) phenomenon. The measured NDR peak voltage of HPAs was correlated with the reduction potential and the absorption edge energy determined by electrochemical method and UV-visible spectroscopy, respectively. NDR peak voltage of HPAs appeared at less negative voltage with increasing reduction potential and with decreasing UV-visible absorption edge energy. The correlations strongly suggested that NDR phenomenon was closely related to the redox property of HPAs. Vapor-phase oxidation of benzyl alcohol to benzaldehyde was carried out as a model reaction to track the oxidation catalysis of HPAs. NDR peak voltage appeared at less negative voltage with increasing yield for benzaldehyde.</P>

EAF Slag의 해양복토제 활용을 위한 PO₄<SUP>­</SUP>-P 제거특성에 관한 연구

김재원(Jae-Won Kim),서종범(Jong-Beom Seo),강민경(Min-Gyeong Kang),김인득(In-Deuk Kim),오광중(Kwang-Joong Oh) 한국청정기술학회 2010 청정기술 Vol.16 No.4

본 연구에서는 제강전기로 슬래그를 해양복토제로 활용하기 위한 인제거 특성실험을 실시하였다. 제강전기로 슬래그의 PO₄<SUP>-</SUP>-P 제거 특성에 관한 시험 결과, 슬래그 내의 CaO는 Ca<SUP>2+</SUP>와 OH<SUP>-</SUP>로 이온화됨에 따라 PO₄<SUP>-</SUP>-P와 반응하여 HAP를 형성함으로써 용액 중에 존재하는 PO₄<SUP>-</SUP>-P를 효과적으로 제거하는 것으로 나타났다. 연속반응기를 통한 해수 내 PO₄<SUP>-</SUP>-P의 지속적인 유입에 대한 제거특성을 확인한 결과, 칼럼 내 PO₄<SUP>-</SUP>-P 농도는 반응 3일 이후 급격히 감소하여 10일 이후에는 0.5 ppm 이하로 나타났다. 실제 연안해역의 저질을 이용한 제강전기로 해양복토제 적용실험 결과, 반응 25일 후 PO₄<SUP>-</SUP>-P 발생량을 93∼ 98% 저감시키는 것으로 나타났다. 이러한 결과를 바탕으로 제강전기로 슬래그를 해양복토제로 활용할 경우 PO₄<SUP>-</SUP>-P 제거 및 억제효과가 있으며, 파쇄선별 등 별도의 추가공정 없이 적은 량으로도 사용 가능할 것으로 판단된다. This study estimated the possibility of phosphate removal characteristics to utilize EAF(electric arc furnace) slag as submarine cover material. The major phosphate removal mechanism was a certain formation of HAP precipitation occurred by the ionization reaction between Ca<SUP>2+</SUP> and OH<SUP>-</SUP>, which were leached from the EAF Slag. Another phosphate removal mechanism was the adsortion of EAF slag surface. As a result of PO₄<SUP>-</SUP>-P removal characteristics using continuous column reactor, PO₄<SUP>-</SUP>-P concentration decreased rapidly after 3 days and 10 days later, it show under 0.5 ppm. The result as applied in real sea water, shows that the phosphate removal effects were 93∼98% by the subaqueous sediment removal using the EAF slag. In conclusion, EAF slag is useful in PO₄<SUP>-</SUP>-P removal and control and it is possible to use without additional process like crush and selection.