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ICT 인프라와 투자 환경이 혁신에 미치는 영향 : 세계혁신지수를 중심으로
최진용,김상유 한국정보시스템학회 2020 情報시스템硏究 Vol.29 No.3
Purpose: The purpose of this study is to demonstrate the relationship between ICT(Information & communication technology) infrastructure, investment environment, and innovation performance from a national perspective. Design/methodology/approach: We derived 5 hypotheses based on the literature review. To measure each concept, We converted the scores of each country provided by the Global Innovation Index into a 7 Likert scale and performed a regression analysis. Findings: According to the empirical analysis result, this study confirmed that knowledge and technology output mediated the relationship between ICT infrastructure and creative goods and services. In addition, this study confirmed that the investment environment has a moderating effect between ICT infrastructure and knowledge and technology output.
최진용 한국제4기학회 1995 제사기학회지 Vol.9 No.1
한반도 서해 만경강-동진강 하구역 조간대 퇴적층의 수직층서 퇴적상 변화를 분석 하여 퇴적과정을 기초해양환경의 관점에서 해석하였다. 본 연구해역 저 조선의 퇴적층은 사 질함량이 우세한 반면 방조제와 인접한 만조선의 퇴적층은 실트질이 우세하였고 상층과 하 층의 퇴적물이 뚜렷하게 구분되었다. 사질퇴적층의 내부퇴적구조는 괴상구조, 평행층리 및 사층리 구조등이 우세하며 니질퇴적층에서는 모래/니질 교호엽리구조가 우세하다. 본 연구 의 결과 만경강-동진강 조간대 퇴적층서는 인근의 방조제 축조에 다른 퇴적환경 변화에 크 게 영향받은 것으로 해석된다, 즉 방조제축소 이전 고에너지의 퇴적환경에서 집적되었던 사 질퇴적층이 방조제축조 이후에는 저에너지 환경조건에서 집적된 니질퇴적물로 피복된 것으 로 해석된다.
기포를 이용한 미세 부유 폴리에틸렌 입자 포획에 대한 연구
최진용,박형민 한국가시화정보학회 2022 한국가시화정보학회지 Vol.20 No.3
Underwater environmental pollution caused by microplastic particles is considered to be one of the most serious problems in many oceans and countries nearby. Previous academic studies or field technologies tried to remove the micro-sized particles are often energy-consuming and costly, so it is hard to be employed for the actual uses. In this study, the mechanism of removal of micro-sized polyethylene spheres (size in order of 100μm) using a rising bubble is experimentally investigated. It is found that the particles are either affected by bubble wake, thus translocated close to the water surface, or pushed far away by the surrounding fluid flow, depending on their initial position relative to the bubble. By scrutinizing the visualized behaviors of bubble-particle interaction, we draw the governing parameter, i.e., the polar angle between the particle and the bubble, to determine the effective capturing of the particles with a rising bubble.
와송 추출물의 면역기능 개선 효과 및 안전성 연구: 단일기관, 무작위배정, 이중눈가림, 위약대조 비교, 임상연구 프로토콜
최진용,최준용,임현우,김정,김소연,한창우,Choi, Jin Yong,Choi, Jun Yong,Lim, Hyun Woo,Kim, Jeong,Kim, So Yeon,Han, Chang Woo 대한한의학방제학회 2017 大韓韓醫學方劑學會誌 Vol.25 No.2
Objectives : This trial aimed to determine if Wasong (Orostachys japonicus) extract can enhance immune system and is safe enough to be approved as a health functional food. Methods : Total 62 people, aged 45 and older, will be recruited to participate in a randomized, double-blind, placebo-controlled clinical trial. This study will compare Wasong extract and placebo. Wasong group will take 1g of Wasong extract, once a day, for 8 weeks. Placebo group will take 1g of crystalline cellulose as placebo, once a day, for 8 weeks. Outcomes will be measured at the baseline, the end of 4th week, and 8th week. Primary outcomes are the ratio of NK cells/total lymphocytes and the ratio of T-helper cells/T-suppressor cells. Secondary outcomes are total white blood cell count, the ratio of neutrophils, lymphocytes, and monocytes in total leukocytes, the ratio of total T cells, T-helper cells, T-suppressor cells, and B cells to lymphocytes, the amount of blood IgM, IgG, IgA, and cytomegalovirus (CMV) IgG, and blood metabolite target &global analysis. Results : This trial was approved by institutional review board of Pusan National University Korean Medicine Hospital (registry number: 2016006), and registered in Clinical Research information Service, one of WHO International Clinical Trials Registry Platform (registry number: PRE20161006-002). Recruitment opened in February 2017 and is supposed to be completed by August 2017. The result is expected to be published by June 2018. Conclusion : This trial will provide clinical information to determine the efficacy and safety of Wasong in enhancing immune system of middle-aged and older people.
한반도 동해 남부 대륙붕에 분포하는 탄산질-쇄설성분 혼합 퇴적물에 대한 연구
최진용,Choi, Jin-Yong 한국지구과학회 1997 한국지구과학회지 Vol.18 No.6
한반도 동해 남부 대륙붕에 분포하는 탄산질-쇄설성분 혼합 퇴적물에서 성분별 입도분석을 실시하여, 퇴적 환경 및 퇴적기작을 해석하였다. 쇄설성분은 평균입도가 중립사와 세립사 범위였으며, 분급이 양호한 단빈도 입도분포를 나타내었다. 이들 쇄설 퇴적물은 해수면이 낮았던 지난 빙하기동안 해빈 퇴적환경에서 집적되었으며, 전형적인 잔류퇴적물로 해석된다. 패각류가 우세한 탄산질 성분은 거의 파쇄된 상태이며, 표면이 심하게 풍화되었다. 이들 패각도 빙하기동안 천해환경에서 서식하였던 잔류기원 패각편으로 해석된다. 한편 입도특성은 쇄설성 성분에 비하여 다소 조립하며, 분급도는 불량하였다. 이들 패각편 탄산질 성분은 집적된 이후 지속적인 파쇄 및 분급작용에 의해 입도분포의 특징이 조절된 것으로 해석된다. Grain size analysis have been made for the carbonate-detrital mixed sediments on the continental shelf off the southeastern coast of Korea. The detrital components are well-sorted with mean grain size between 2-3 phi. The detrital components are thought to be deposited in the beach environment during the glacial times when the sea level was low, representing typical 'relict' sediments. Most of the carbonate components consist of shell fragments, and are deeply weathered. They are also interpreted as the relict components that were deposited in the shallow marine environment. The carbonate fraction are coarser-grained and poorly sorted compared to the detrital component. The carbonate components are thought to have experienced the continuous environmental control of fragmentation and selective size sorting after the deposition.