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김진수 ( Kim¸ Jin-soo ) 건국대학교 법학연구소 2021 일감부동산법학 Vol.- No.23
본 연구에서는 전국 주택시장 간의 전이 관계와 시장구조 파악을 목적으로 하고 있다. 이를 위해 서울 5개 권역과 지방 6대 광역시를 대상으로 2012년 5월 14일부터 2020년 2월 3일까지 주간 단위 아파트매매가격지수 자료를 활용하여 GARCH-BEKK 모형과 네트워크 분석을 하였다. 전국 주택시장 간의 전이관계를 GARCH-BEKK 모형으로 분석한 결과, 5% 유의수준에서 유의한 전이관계는 57개로 51.82%의 전이 비율을 보였으며, 전이관계는 서울의 5개 권역 간에는 양방향 관계를 보였으며, 서울과 광역시 간에는 단방향 관계를 보이는 것으로 나타났다. 네트워크 분석 결과, 연결 중앙성과 근접 중앙성 모두 대구시와 서울의 서남권, 동북권, 도심권이 높은 것으로 나타나 이들 지역을 중심으로 전이관계가 형성되어 있는 것을 규명하였다. 이러한 결과는 이들 지역의 주택매매 가격이 다른 지역의 가격형성에 영향을 크게 미친다는 것을 의미하는 것으로 아파트 매매가격의 지역 간 전이는 일관성 있는 패턴이 아니라는 것을 의미한다. 그러므로 정부에서는 주택정책을 전국을 대상으로 한 정책과 특정 지역을 대상으로 한 정책을 병행하여 수립하는 것이 바람직하다는 점을 시사하고 있다. The purpose of this study is to understand the transitional relationship between the national housing market and the market structure. For the purpose, the GARCH-BEKK model and network analysis were conducted using data on the weekly apartment price index from May 14, 2012 to February 3, 2020, in five areas of Seoul and six Metropolitan Cities in the province. As a result of analyzing the transitional relations among the national housing markets with the GARCH-BEKK model, 57 significant transitional relations were found at 5% significance level, which was 51.82%. In addition, the transfer relationship showed a two-way relationship between the five areas of Seoul, and a one-way relationship between Seoul and Metropolitan Cities. Network analysis results, both degree centrality and closeness centrality were found to be high in the Daegu City, Seoul’s Southwestern, Northeastern, and Downtown areas. These results indicate that the housing price in these regions greatly influences the price in other regions, and that the interregional transfer of apartment sales prices is not a consistent pattern. Therefore, the government suggests that it is desirable to establish the housing policy in parallel with the policy targeting the whole country and the targeted area.
Context-based Web Application Design
Jinsoo Park(Jinsoo Park) 한국전자거래학회 2007 한국전자거래학회지 Vol.12 No.2
웹 기능의 향상과 웹 관련 기술의 발전, 레거시 시스템과의 통합 필요성 증대, 자주 변하는 웹 콘텐츠와 구조 등으로 인하여 웹 애플리케이션을 개발하고 관리하는 일이 과거보다 훨씬 더 복잡하게 되었다. 그러나 이러한 다양한 요인들을 고려하는 포괄적인 웹 애플리케이션 설계 방법론은 아직 존재하지 않고 있다. 따라서 본 연구에서는 이러한 요인들을 고려한 컨텍스트 기반의 웹 애플리케이션 설계 방법론을 제시하고자 한다. 본 연구에서 제시하는 방법론에서는 웹 정보를 전달하는 메커니즘에 따라 구분되는 9 종류의 웹 페이지 형태와 웹 페이지 간의 다양한 의미 관계를 정의하는 7 종류의 링크 형태 및 설계 과정 중에 사용되는 여러 종류의 컴포넌트 역할을 구별하는 소프트웨어 컴포넌트 형태 등 다양한 종류의 모델링 기법들을 소개하고 있다. 뿐만 아니라 이 방법론은 ‘콤펜디엄(compendium)’이라 불리는 일단의 관련된 정보 클러스터들로 이루어진 독창적인 웹 애플리케이션 모델을 사용하고 있다. 하나의 콤펜디엄은 주제(theme), 컨텍스트 페이지, 링크 및 컴포넌트로 구성된다. 이러한 접근방법은 모듈 방식의 설계에 유용할 뿐만 아니라 항상 변하는 웹 애플리케이션의 콘텐츠와 구조를 관리하는데도 도움이 된다. 본 연구에서 제시한 방법론은 의미적으로 응집력이 있고 구문적으로 느슨히 결합된 유연한 웹 디자인 산출물을 생성하는데 도움이 될 것이다. Developing and managing Web applications are more complex than ever because of their growing functionalities, advancing Web technologies, increasing demands for integration with legacy applications, and changing content and structure. All these factors call for a more inclusive and comprehensive Web application design method. In response, we propose a context-based Web application design methodology that is based on several classification schemes including a Webpage classification, which is useful for identifying the information delivery mechanism and its relevant Web technology; a link classification, which reflects the semantics of various associations between pages; and a software component classification, which is helpful for pinpointing the roles of various components in the course of design. The proposed methodology also incorporates a unique Web application model comprised of a set of information clusters called compendia, each of which consists of a theme, its contextual pages, links, and components. This view is useful for modular design as well as for management of ever-changing content and structure of a Web application. The proposed methodology brings together all the three classification schemes and the Web application model to arrive at a set of both semantically cohesive and syntactically loose-coupled design artifacts.
Jinsoo Park,Jinsoo Choi,Hyunjae Kim,Jun Oh,Minyoung Seong,Joonyoung Ahn,Sangbo Lee,Jeongho Kim 한국도시환경학회 2018 한국도시환경학회지 Vol.18 No.4
This study aims to identify the characteristics of oxidation and chemical composition of PM in winter season, 2017 at Incheon area. The mean concentration of air pollutants were 46 ± 22 μg/m3-PM10, 29 ± 18 μg/m3/-PM2.5, 5 ± 3 ppb-SO2, 0.56 ± 0.24 ppm-CO, 21 ± 13 ppb-O3 and 28 ± 17 ppb-NO2, respectively. The dominant ion of the PM1.0 chemical component were organic with 3.2 μg/m3 and nitrate with 1.9 μg/m3. The day and night variation of the PM1.0 chemical components was higher in nighttime than those of daytime. The averaged nitrate oxidation rate (SOR) was 0.06 and sulfate oxidation rate was 0.11 during the field campaign. In the high mass loading period, nitrate oxidation rate (NOR) was up to 0.6 and also the nitrate in PM1.0 was increased. The averaged ratio of NOx/SO2 was 8.7 and nitrate/sulfate was 3.1, respectively. In this results, the nitrate component in PM1.0 was influenced by NOx from the stationary source as power plant and the mobile source around the measurement site.
Jinsoo Noh,Minhoon Jung,Younsu Jung,Chisun Yeom,Myungho Pyo,Gyoujin Cho IEEE 2015 Proceedings of the Institute of Electrical and Ele Vol.103 No.4
<P>This paper addresses the key issues that must be overcome to realize fully printed TFT-based flexible devices via commercially viable methods. In particular the threshold voltage (V<SUB>th</SUB>) variation in printed TFTs is a serious impediment to the successful launch of fully printed TFT-based devices in the market. The underlying causes of the V<SUB>th</SUB> variation in fully printed TFTs were analyzed by considering the misalignment of printed drain-source to gate electrodes, the rheology of electronic inks and effects from external sources of charge. By alleviating the influences of external sources of charge using a printed passivation layer, V<SUB>th</SUB> variation is maintained below 30% using a fully printed process. Based on the attainable variation range, the required number of integrated TFTs was estimated to fabricate a fully printed TFT-based radio frequency (RF) sensor device. A practical compromise enables fully printed RF sensors to be realized via the scalability of printing processes that mitigate V<SUB>th</SUB> variation by minimizing the level of TFT integration. Prototypes of fully printed RF sensors with human interactive capability-an RF sensor label, and an RF e-sensor (cyclic voltammetry) tag-are enabled with as few as 26 printed TFTs, demonstrating that low-cost and high throughput manufacturing of printed electronics is feasible.</P>
Chemistry and Design Considerations for Zinc Application Into Reactor Coolants of I-SMR
Jinsoo Choi,Daseul Ham,Cho-Rong Kim,Yong-Sang Cho,Hyuk-chul Kwon,Kyu-Min Song 한국방사성폐기물학회 2023 한국방사성폐기물학회 학술논문요약집 Vol.21 No.1
Korean innovative SMR has been implemented developing with improved safety/economy and i- SMR technology development project to secure a competitive edge in SMR. For nuclear power plants, according to the revision of the Nuclear Safety Act (2013.6), it is mandatory to be reflected in the aging management program of nuclear power plants, and the aging management and regulation of major nuclear power plants are being strengthened. For i-SMR, chemistry environment and management strategy is essential to mitigate corrosion and radiation fields, since it has compacted and integrated module designs. Since 1994, zinc injection into the reactor coolant system (RCS) has been applied more than 100 PWRs in the world to mitigate primary water stress corrosion cracking (PWSCC) and to reduce outof- core radiation fields. In domestic NPPs, 7 have been applying zinc injection and had up to 90% radiation field reductions. For this reason, SMR needs to apply zinc injection for chemistry strategy. Zinc target concentration will be 5~40 ppb at i-SMR, based on Ni-Fe-Cr materials as same as PWRs. Zinc injection location is in volume and purification control system between the volume control tank and charging P/P where the pressure is moderate. Zinc injection skid can consist of two micro-controllable pump (one for operation and one for stand-by) and one injection tank (batching tank for zinc solution). Zn, Ni, Si, Fe, and activated corrosion products should be monitored to identify zinc injection controls and trends. Flux mapping for core performance monitoring should be evaluated. The application of zinc will be essential and effective and bring sustainable reliability for corrosion control and mitigation strategy to meet the risk-free i-SMR development.
Physicochemical and Textural Properties of Noodles Prepared from Different Potato Varieties
Jinsoo Kang,Jungu Lee,Moonkyeung Choi,Yongik Jin,Dongchil Chang,Yoon Hyuk Chang,Misook Kim,Yoonhwa Jeong,Youngseung Lee 한국식품영양과학회 2017 Preventive Nutrition and Food Science Vol.22 No.3
This study was performed to investigate the quality characteristics of noodles made from four different potato varieties: Atlantic, Go-un, Sae-bong, Jin-sun, and wheat flour. Quality characteristics of five noodles were analyzed by general components analysis, cooking quality (rate of water absorption, cooking loss, and volume increase), and mechanical textural properties. Some variations existed in wheat- or potato-based noodles for the general components analysis, but no clear trend was observed. Higher values in the rates of water absorption, cooking loss, and volume increase were observed for the wheat flour noodle, while some variations were observed for potato noodles depending on the variety. The wheat flour noodles exhibited higher values of textural characteristics obtained from the texture profile analysis, except for adhesiveness. Higher gluten contents as well as lower ash contents in the wheat flour noodles compared to the potato noodles are thought to be the two key factors contributing to this finding.