• Title/Summary/Keyword: Nation-wide

Search Result 525, Processing Time 0.036 seconds

An Experimental Study on the Flow Characteristics ofa Supersonic Turbine Cascade as Pressure Ratio

  • Cho, Jong-Jae;Jeong, Soo-In;Kim, Kui-Soon;Lee, Eun-Seok
    • International Journal of Aeronautical and Space Sciences
    • /
    • v.5 no.2
    • /
    • pp.9-17
    • /
    • 2004
  • In this paper, a small supersonic wind tunnel was designed and built to studythe flow characteristics of a supersonic impulse turbine cascade by experiment. Theflow was visualized by means of a single pass Schlieren system. The supersoniccascade with 3-dimensional supersonic nozzle was tested over a wide range ofpressure ratio. Highly complicated flow patterns including shocks, nozzle-cascadeinteraction and shock boundary layer interactions were observed.

Security Evaluation Criteria of Electronic Payment System (전자 지불 시스템의 보안 평가 기준)

  • 신장균;황재준
    • Proceedings of the CALSEC Conference
    • /
    • 1999.07b
    • /
    • pp.491-500
    • /
    • 1999
  • Recent increase of commercial network Integration to World Wide Web(WWW) shifts an ordinary commerce to electronic environment. This draws more people to examine re-assurance of their secure transaction. This study investigates current status of security methodology for Electronic Payment System and extracts important axis of security level for electronic payment. Using these axis as security evaluation criteria, the research proposes a security matrix which consists of four different level of security granularity, hence allowing evaluation of a nation-wide credit card based payment system. Feasible usage of this matrix contributes to security analysis of the electronic system as whole, hence providing better secured electronic environment.

  • PDF

A constitution plan of national safety management system applied by systems engineering (시스템 엔지니어링을 적용한 국가 안전관리 체계 구성 방안)

  • Cho, Yun-Ok;Yoon, Hyuk-Jin;Kim, Sang-Ahm;Kwak, Sang-Log;Han, Soon-Woo
    • Proceedings of the KSR Conference
    • /
    • 2007.05a
    • /
    • pp.1199-1203
    • /
    • 2007
  • As technologies are developed and systems are complicated, hazards embedded in the system are also increasing. proving safety and managing the safetyis more scientific and organizational domain so that safety management system is pursuing to be activeformation detecting the factors of hazard and managing them beyond passiveway. In the future, in order to establish and manage national safety management system, it is important to have effective system and manage it and also more important that all the people related to target system has to change their recognition and to playroles in it. Many railway safety measures reduce railway fatalities into half for last 10 years. But more improvement in railway safety is required to meet the social need after railway fire accident in Daegue. After the Daegue subway train fire accident, the Korean government has been trying to prepare a nation-wide railway safety program, a safety organization, and a Safety Act. To construct a nation-wide railway safety management program, system architecture was established.

  • PDF

Water, Energy, and Food Nexus Simulation Considering Inter-Basin Trade

  • Wicaksono, Albert;Jeong, Gimoon;Kang, Doosun
    • Proceedings of the Korea Water Resources Association Conference
    • /
    • 2016.05a
    • /
    • pp.190-190
    • /
    • 2016
  • The Water, Energy, and Food (WEF) nexus is an emerging concept for sustainable resources planning and management. The three valuable resources are inevitably interconnected, that is, it takes water to produce energy; it takes energy to extract, treat, and distribute water; and both water and energy are required to produce food. Although it is challenging to fully understand the complicated interdependency, a few studies have been devoted to interpret the concept and develop the assessment tools. The tools were mainly developed for nation-wide simulations without considering inter-basin or inter-state resources trade. This study tries to present an idea to develop and implement the WEF nexus simulation model in regional scale by advancing the existing nation-wide model with additional capability to simulate the inter-basin trade. This simulation could help local planners and engineers to determine optimal policies and infrastructure solutions to reach and ensure local demand satisfaction. The simulation model is implemented in hypothetical areas with different conditions of WEF demands and supplies. Although the inter-basin trade scenarios are simulated manually, it shows that the inter-basin resources trade could enhance the resources security for a longer time period. In future, an optimization model might be developed to provide the automatic calculation to reach optimum amount of WEF for the trade, which can be a helpful tool in decision making process.

  • PDF

Development of Wide Area DAS for Distribution Control Center (배전센터용 광역 배전자동화시스템 개발)

  • Shin, Chang-Hoon
    • Journal of the Korea Academia-Industrial cooperation Society
    • /
    • v.9 no.5
    • /
    • pp.1145-1149
    • /
    • 2008
  • This paper presents KEPCO research project for developing wide area DAS by reengineering conventional DAS and its functional upgrade. Through the research project system design requirements were prepared based on the local operation status and oversea examples. Application softwares were also developed supporting integrated operation of several area. The system implementation was performed on Choongnam regional head office for pilot operation. The developed wide area DAS will be fully installed on 41 DCC nation wide and expected to contribute on innovation of our distribution network operation.

A study on the device of effective industrial education training for ability of management development in small medium industry factory. (중소기업공장의 관리능력개발을 위한 효과적인 산업교육 훈련의 실시방안)

  • 신용백
    • Journal of the Korean Professional Engineers Association
    • /
    • v.13 no.3
    • /
    • pp.60-64
    • /
    • 1980
  • Top manager and factory manager in the small-medium industrial factory in Korea was conscious of industrial education training requirement more than past, it began the Saemaul movement in factory from 1974, and the 1st nation wide meeting of industrial Standardization & Quality control Movement from 1975, etc. It is that industrial education training through the influence of pan-industrial nation with program. Because it is non-system and unplanned that are a short period introduction of industrial education training operation. Now then they are received better apprecation through the information of the program ecommendation and consultancy of industrial education training from coordination with related professional agencies and goverment agency for small-medium industry promotion.

  • PDF

Assessment of the Environmental Value of the Geum-river Estuary (금강하구의 환경가치 평가)

  • Kwon, Young-Ju;Yoo, Seung-Hoon;Park, Se-Hun
    • Journal of the Korean Society of Marine Environment & Safety
    • /
    • v.19 no.5
    • /
    • pp.417-429
    • /
    • 2013
  • The current study attempted to assess the environmental value of Geum-river estuary for rational management decision-making. To investigate the comprehensive properties of the Geum-river estuary, we applied the contingent valuation method based on multi-attribute utility theory. We surveyed a randomly selected sample of 400 and 600 households of the Geum-river estuary-neighboring area (Jeollabuk-do, Chungcheongnam-do), and other nation-wide large districts (except Jeollabuk-do, Chungcheongnam-do, and Jeju-do), respectively, and carried out person-to-person interviews with subjects on their willingness-to-pay for the estuary conservation and management program. Respondents, overall, accepted the contingent market system and were willing to contribute a significant amount, that is 1,497 won for the residents from the Geum-river estuary-neighboring area and 4,343 won for the residents from other nation-wide large districts on average, per household per year. These results implied that there were large difference between the two groups. The aggregate values of the Geum-river estuary for the estuary-neighboring area and other nation-wide large districts amount to 2.13 and 70.15 billion won, respectively, per year. This quantitative value deduced from the current study, could be a useful baseline fact for any decision-making process particularly in the establishment of management policies for the Geum-river estuary.

Cancer Registration in Korea: The Present and Furtherance (암 등록사업의 현황과 추진방향)

  • Ahn, Yoon-Ok
    • Journal of Preventive Medicine and Public Health
    • /
    • v.40 no.4
    • /
    • pp.265-272
    • /
    • 2007
  • It was not until 1975 that cancer registration was initiated in Korea; voluntary registration of cancer patients of training hospitals throughout the country began under the auspices of the Korean Cancer Society(KCS). However, an official cancer registration, the Korea Central Cancer Registry(KCCR), began on July 1st, 1980. Forty-five training and two non-training hospitals throughout the country initiated registration of patients in whom neoplasms had been found. Data related to case information specified are to be sent to the KCCR at the National Medical Center(it moved at National Cancer Center in 2000). The initial cancer registration of KCS was merged to the KCCR in 1980. Although the KCCR covers most all the large training hospitals in Korea, it cannot provide incidence data. It is, however, the only of its kind in the world, being neither hospital nor population based. The first population based cancer registry(PBCR) was launched in a small county, Kangwha(it has around 80,000 inhabitants), by Yonsei University Medical College in 1983. All data were collected by active methods, and incidence statistics for 1986-1992 appeared in Vol VII of the CI5. Another PBCR, Seoul Cancer Registry(SCR), started in 1991. It was supported by a civilian foundation, the Korean Foundation for Cancer Research. The basic idea of case registration of SCR was the incorporation of KCCR data to PBCR, e. g. dual sources of case registration, i.e., from the KCCR and also including cases diagnosed in small hospitals and other medical facilities. Assessing completeness and validity of case registration of SCR, the program and methodology used by the SCR was later extended to other large cities and areas in Korea, and the PBCR in each area was established. Cancer incidence statistics of Seoul for 1993-1997, Busan for 1996-1997, and Daegu for 1997-1998, as well as Kangwha for 1993-1997, appeared eventually in Vol VIII of the CI5. The Korean or 'pillar' model for a PBCR is a new one. The KCCR data file is a reliable basis, as a pillar, for a PBCR in each area. The main framework of the model for such a registry is the incorporation of a KCCR data file with data from additionally surveyed cases; the data related to cancer deaths, medical insurance claims, and visit-and surveillance of non-KCCR medical facilities. Cancer registration has been adopted as a national cancer control program by Korean government in 2004 as the Anti-Cancer Act was enacted. Since then, some officers have tried to launch a nation-wide PBCR covering whole country. In the meantime, however, cancer registration was interrupted and discontinued for years due to the Privacy Protection Law, which was solved by an amendment of the Anti-Cancer Act in 2006. It would be premature to establish the nation-wide PBCR in Korea. Instead, continuous efforts to improve the completeness of registration of the KCCR, to progress existing PBCRs, and to expand PBCRs over other areas are still to be devoted. The nation-wide PBCR in Korea will be established eventually with summation of the PBCRs of the Korean model.

Child raising and education of marriage-based immigrants in Korea: On the focus of infants (국내 결혼이민자의 자녀 양육과 교육 - 소아를 중심으로 -)

  • Seol, Dong-Hoon
    • Clinical and Experimental Pediatrics
    • /
    • v.52 no.4
    • /
    • pp.403-409
    • /
    • 2009
  • Due to recent upsurge in international marriages, the socio-cultural adaptation, the reinforcement of family stability, and the social integration support of marriage-based immigrant family have been the major social issues. This paper tries to show the current status of marriage-based immigrants and their children nation-wide. Specifically, it analyzes the statistical trends in international marriages, traits of marriage-based immigrants and their children, their attitudes towards child raising and education, and presents policy measures to enhance their life quality.

Land Capability Classification of Upland of the Base of Soii and Meteorological Factors in Korea. (한국의 기상및 토양조건과 토지능력구분)

  • 김학영
    • Magazine of the Korean Society of Agricultural Engineers
    • /
    • v.7 no.2
    • /
    • pp.935-943
    • /
    • 1965
  • 1. Nation wide soil surver is going of from Oct't by Unkup. According to the sever years program of national high hueld of food production campaign. 2. About eighry of new soil surveryors wee assigned to provincial office of Unkup. 3. Land capability classifieation comes from U.S.D.A method. Bur we fells most adequate land classification should be studied and set uo of the real Korean Natural situation. 4. This theory has been studied by the Unkup soil survey staffs.

  • PDF