• Journal of KIISE:Computer Systems and Theory
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• v.28 no.4
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• pp.196-203
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• 2001

본 논문에서는 빠른 시간 내에 설계자의 요구사양을 만족하는 메모리를 자동으로 합성해주는 새로운 멀티포트 메모리 컴파일러를 제안하였다. 제안한 컴파일러의 장점은 하나의 메모리 코어 셀을 규칙적으로 배치, 확장하여 메모리를 합성하고, 동시에 합성된 메모리내의 임계경로만을 추출하여 빠르게 검증할 수 있다는 것이다. 또한, 레이아웃 상에서의 전원선 공유 등의 기법으로 메모리의 성능을 향상시킬 수 있도록 하였다. 본 컴파일러를 사용하여 0.25$\mu\textrm{m}$ CMOS 1-poly, 2-metal 공정에서 최대 8개의 쓰기 포트, 16개의 읽기 포트, 64워드, 256비트 사이의 여러 가지 멀티포트 메모리를 자동 합성하였다. 합성 결과 메모리의 성능 및 면적 면에서 만족할 만한 결과를 얻었으며, 레이아웃 전체에서의 시뮬레이션 시간보다 10배정도 빠른 시간 내에 동작을 정확히 검증하였다.

• Journal of Environmental Science International
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• v.14 no.11
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• pp.995-1004
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• 2005

As a research establish reservoir safety operation for small dam systems. This study presents hydrologic analysis conducted in the Duckdong and Bomun dam watershed based on various rainfall data and increase inflow. Especially the Duckdong dam without flood control feature are widely exposed to the risk of flooding, thus it is constructed emergency gate at present. In this study reservoir routing program was simulation for basin runoff estimating using HEC-HMS model, the model simulation the reservoir condition of emergency Sate with and without. At the reservoir analysis results is the Duckdong dam average storage decrease $20\%$ with emergency gate than without emergency gate. Also, the Bomun dam is not affected by the Duckdong flood control augmentation.

• Journal of Korean Society for Quality Management
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• v.35 no.4
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• pp.1-15
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• 2007

The purpose of this study is to evaluate the causal relationship among the MBNQA health care criteria in Korean University Hospitals. The survey instrument consists of 109 questions based on the seven MBNQA health care criteria: '1.Leadership', '2.Strategic Planning', '3.Focus on Patients Other Customers. Markets', '4.Measurement Analysis Knowledge Management', '5.Human Resource Focus', '6.Process Management', and '7.Results'. Structural Equation Modeling(SEM) is used to analyze the path coefficients among the seven categories. The results indicate that fourteen hypotheses are statistically significant, among eighteen hypotheses. Conclusively, this study found that Leadership drives systems that create Results through Foundation and Direction.

• Publications of The Korean Astronomical Society
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• v.32 no.1
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• pp.55-57
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• 2017

Presently, the number of known asteroids is more than 710,000. Knowledge of size and albedo is essential in many aspects of asteroid research, such as the chemical composition and mineralogy, the size-frequency distribution of dynamical families, and the relationship between small bodies in the outer solar system or comets. Recently, based on the infrared all-sky survey data obtained by IRAS, AKARI, and WISE, the large asteroid catalogs containing size and albedo data have been constructed. In this paper, we discuss the compositional distribution in the main belt regions based on the compiled data on size, albedo, and separately obtained taxonomic type information.

• 한국경영정보학회:학술대회논문집
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• 2008.06a
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• pp.786-793
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• 2008

This research is carried out being divided into a first evaluation and second evaluation. A Study is carried out on first, the accessibility compliance level of Korea government department websites and second, whether the site which complies well with web accessibility increases web usability for users through a web usability evaluation. The evaluation result, web sites which comply well with the web accessibility guidelines were observed to increase web usability for both normal and disabled people but web sites which do not comply well were observed to lower the web usability making the web sites unavailable or inconvenient to use. Therefore, it can be concluded that there is a very close interrelationship between web accessibility and usability and thus compliance with web accessibility is not an option but a mandatory requirement.

• 한국경영정보학회:학술대회논문집
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• 2008.06a
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• pp.1096-1103
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• 2008

2002년 소비자 보호 및 기업의 제품 역량 강화를 위해 대두된 제조물 책임법으로 제품에 대한 소비자의 관심이 증대되고 제품 결함에 대한 기업의 책임이 강화되고 있다. 본 연구에서는 전기 전자 산업에서 제조물 결함에 의해 나타나는 기업 및 소비자의 손해 배상에 대한 분석과 제품 흐름별 PL법 사례를 제시한다. 또한, 신속한 기업 PL 예방과 대응을 위한 RFID 적용 전, 후 PL법 대응 프로세스 분석을 통해 RFID 적용 PL법 대응 방향을 제시한다. 더불어, PL법 대응 시스템 설계 시 접근 방향과 제품 라이프 사이클에서 제시되는 데이터 흐름 및 상세적용 정보를 제시하여 효과적인 PL법 대응 프로세스 구축 방향을 제시하고, 전기 전자 산업 사례 적용을 통하여 전기 전자 산업의 PL법 대응 프로세스 및 핵심 정보를 제시하고자 한다.

• 한국경영정보학회:학술대회논문집
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• 2008.06a
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• pp.995-1000
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• 2008

Software Process Improvement(SPI) becomes an important issue at software quality. A research model is suggested on the basis of previous literature. The model includes success factors for SPI as independent variables and CMM levels as mediating variables, and defines organizational performance as dependent variables. This study basically investigates causational relationships among SPI success factors, CMM levels, and organizational performance through a structured equation model. A LISREL v8.72 for windows is used for statistical analysis. Even through success factors for SPI partially influences the CMM level, the CMM level is fully related to the level of organizational performance. The results show that the success factor for SPI in Korean companies are not equal to the factors abroad, but indicate that the CMM level is closely related to the organizational performance. These results will be helpful to academicians as well as to practitioners.

• 한국경영정보학회:학술대회논문집
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• 2008.06a
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• pp.171-176
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• 2008

As business environment becomes dynamic, complicated, and networked, viability is important not only for the firm itself but also for its partners. It is needed a broader view to understand and to improve competitiveness of an organization, which is defined as the business ecosystem view. In this research Korean financial market is to be defined as a business ecosystem. The Korean financial market consists of Bank of Korea as the keystone, a number of major financial institutions as flagship entities, and other members in the ecosystem. Since dynamic interactions among members of the ecosystem are done through IT, the financial ecosystem's competitiveness is based on IT competence. In this paper, it is suggested a new view of business ecosystem on the Korean financial market structure and the role of IT to enhance the healthiness of financial ecosystem.

• 한국경영정보학회:학술대회논문집
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• 2008.06a
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• pp.35-51
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• 2008

This study is to investigate factors that affect preference to CMDS(convergence mobile data service) on institutionalization of MDS. A research model was proposed and subsequent hypotheses were empirically tested with partial least square (PLS) based on 400 responses from the users of CMDS(DMB: 200 / m-Banking: 200). It was learned that institutionalization of technology related building MDS was positively associated with assimilation of MDS(represent a institutionalization of MDS) rather than service quality and use gratification. It means that users decided use of MDS refereed from its level of assimilation to MDS channel. Also, attractiveness of alternatives to CMDS is negatively associated with continuous use of CMDS and preference to CMDS. Lastly, their association strength was partially moderated by the type of motivation for using CMDS.

• 한국경영정보학회:학술대회논문집
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• 2007.06a
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• pp.409-414
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• 2007

Over the past three decades, the impact of IT investments on firm performance has been the subject Q{active research. Although many studies have shown positive and significant benefits derived from IT investment, the findings of almost all these studies are based on data collected in developed countries. This study tries to investigate the effects of IT investment on firm financial performance in the Chinese electronics industry, a typical developing country, and compare it with the United States. Findings show that there is a positive impact of IT investment on firm performance in China. Moreover, the impact in China is not different from what occurred in the United States in the direction and the size against the assertion of previous studies and expectation.