• Journal of the Korea Academia-Industrial cooperation Society
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• v.10 no.8
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• pp.2141-2149
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• 2009

This research is based upon the nursing statistical data published by the Institute of Nursing Policy in 2007, on behalf of Korea nursing association. We analyzed the problems on the healthcare human resources supply in Korea. We suggest that a solution is to adopt immigration policy for foreign workforce employment. The result of the research shows that more than 1,000 nurses are registrated every year except for 2004, according to the yearly status of healthcare jobs. The variance of doctors' registration was quite significant. Compared to 750 registrations in 2004, 4000 doctors were registered in 2002. The healthcare accounts for the property of citizens in terms, which represents the health and lives of everyone, so the country must take all measures to supply the healthcare services in need. Focusing on the underdeveloped region where it is difficult to approach the medical services, the foreign workforce could be added into the healthcare profession field. We conclude that employing foreign healthcare professionals will contribute to the improvement of lives in those people living in underdeveloped region, as well as unity of the local community.

• Journal of the Korean Society of Surveying, Geodesy, Photogrammetry and Cartography
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• v.37 no.6
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• pp.491-498
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• 2019

This study analyzed how the accuracy of co-registration varies depending on the convergence angles between two KOMPSAT-3·3A images. Most very-high-resolution satellite images provide initial coordinate information through metadata. Since the search area for performing image co-registration can be reduced by using the initial coordinate information, in this study, the mutual information method showing high matching reliability in the small search area is used. Initial coarse co-registration was performed by using multi-spectral images with relatively low resolution, and precise fine co-registration was conducted centering on the region of interest of the panchromatic image for more accurate co-registration performance. The experiment was conducted by 120 combination of 16 KOMPSAT-3·3A 1G images taken in Daejeon area. Experimental results show that a correlation coefficient between the convergence angles and fine co-registration errors was 0.59. In particular, we have shown the larger the convergence angle, the lower the accuracy of co-registration performance.

• Proceedings of the KSRS Conference
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• 2006.03a
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• pp.49-52
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• 2006

최근 대규모 지역 혹은 전 지구에 걸친 분석 및 모니터링을 위한 위성영상의 사용이 늘어나면서 이를 처리하기 위한 효율적인 '영상좌표 상호등록'법이 요구되고 있다. 이에 본 연구에서는 일반적으로 오랜 시간이 소요되는 '영상좌표 상호등록'의 효율성을 높이기 위해 '사전검수영역기반정합법'(Pre-qualified area based matching)을 사용하였다. 이를 통해 '영상좌표 상호등록'시 연산시간을 현저히 단축시켰고 추출된 정합점에 과대오차제거법을 적용함으로서 단순히 영역기반정합법을 적용한 경우에 비해서 정확도가 향상됨을 확인할 수 있었다. 제안한 알고리즘을 이용하여 테스트 프로그램을 작성, 한반도 Landsat ETM+ 영상 3장을 이용하여 테스트하였다. 정합점 간의 평균제곱오차는 0.436 영상소, 정합점은 평균 38,475개로 나타났다. 연산시 간은 평균 약 8분으로 나타났다.

• Proceedings of the Korea Information Processing Society Conference
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• 2003.05c
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• pp.2109-2112
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• 2003

Diameter-MIPV4 프로토콜은 기존 Mobile IP(MIP)의 취약한 키 분배 문제를 해결하고 이동노드에 대해 인증 및 권한 검증, 과금 서비스 등을 지원함으로써 보다 개선된 보안 메커니즘을 제안하고 있다. 그러나 흠 망의 Diameter 서버에 의해 인증 및 등록이 수행된 후 공중망을 통해서 이동노드에게 세션키를 분배하는 것은 많은 보안상 공격에 노출될 수 있으며 원격지 도메인간의 빈번한 등록 메시지 교환은 통신 지연을 야기 시킬 수 있다. 본 논문에서는 안전한 세션키 분배를 위해서, 이동 노드의 등록 수행 과정 중 홈 망과 방문 망 사이에 IPsec(IP security) 터널을 구축함으로써 공중망에서의 세션키 유출 위협을 감소시켰다. 또한 네트워크의 계층성과 Micro-Mobility MIP 메커니즘을 이용하여 동일 도메인 내에서의 핸드오프 시 이동 노드의 인증 및 등록, 세션키 분배를 지역화 함으로써 통신 지연 문제를 효율적으로 개선하였다.

• 한국공간정보시스템학회:학술대회논문집
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• 2007.06a
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• pp.401-406
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• 2007

대학 입학생의 수가 급격히 감소하면서 각 대학 당국에서는 많은 입학생 유치와 학교 운영의 문제를 개선하기 위하여 다양한 방안을 모색하고 있다. 특히 대학의 입시 및 입학현황 자료는 대학당국의 입학 및 홍보정책을 결정하고, 나아가 학교생활복지를 향상하는데 있어서 중요성이 매우 높은 자료이다. 따라서 다양한 입시 및 입학 관련 현황 자료와 대학 결정 요인을 고려한 효율적인 분석이 이루어질 수 있는 입학관리시스템의 도입이 절실히 요구된다. 본 연구에서는 기본지리정보 데이터를 바탕으로 대학입시 지원자, 합격자 및 등록자의 자료에 대하여 분석할 수 있는 대학입학관리시스템을 개발하였으며, 해당 시스템을 이용하여 지역별 지원자, 지역별 합격자, 지역별 등록자, 지원자 대비 합격률 및 최근 3년간 지원자 변화율을 분석할 수 있었다. 또한 대학의 입학홍보정책 및 학교운영에 요구되는 합리적이고 적합한 자료를 제공할 것으로 판단된다.

• Journal of Korea Port Economic Association
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• v.30 no.2
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• pp.1-23
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• 2014

Although 'the International Ship Registration Act' has been enacted in Korea as of 1997, its effect is still in question to make shipowners and operators flag in or reflag because of insufficient incentives for them. Therefore, 'the Special Law for Jeju Free International City' has been established and the system of 'Special Ship Registration Zone' has also been enforced. Despite this, few studies were carried out to measure the relative importance of factors for Jeju International Ship Register yet. Against this backdrop, the purposes of this study are firstly, to investigate a relative importance of Jeju International Ship Registration System using AHP(Analytic Hierarchy Process) and secondly, to compare the characteristics of Flags of Convenience(FOC) with International Ship Register(ISR) which was adopted by several Far East Asia Countries(e.g., China, Hong Kong, Chinese Taipei and Japan). Moreover, this study aims to compare FOC with ISR in terms of shipping policy, ship management, and expenses and tax policy. In this paper, the factors were constructed with four high levels consisting of twenty one low levels to evaluate Jeju International Ship Register by utilizing Expert's brainstorming and AHP. According to the results, it is critical to expand the exemption and tax-related expenses, and also manage foreign-related systems systemically. This study provides important implications to maintain the tonnage tax system for ships effectively as well as to intensify the competitiveness of Jeju International Ship Register System.

• Korean Deer Journal
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• v.8 no.5 s.53
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• pp.47-47
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• 2003

• Korean Deer Journal
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• v.9 no.5 s.60
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• pp.27-27
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• 2004

• The Korea Swine Journal
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• v.16 no.5 s.177
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• pp.178-178
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• 1994

• Spatial Information Research
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• v.22 no.2
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• pp.1-9
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• 2014

UN-REDD (United Nations programme on Reducing Emissions from Deforestation and forest Degradation in Developing Countries) and AR-CDM (Afforestation/Reforestation-Clean Development Mechanism) is currently being emerged as one of important mechanism to reduce carbon dioxide in relation to the deforestation. Discussion on North Korea as UN-REDD/AR-CDM project target continues with a view to preventing deforestation and to securing CER(certified emission reduction) for South Korea. The forests in Mt. Baekdu are degraded, deforestation is occurred, nevertheless, portion of forested area is still high, where both REDD and AR-CDM investment potential are quite high. Accordingly, this study is intended to explore a simultaneous registration potential to UNREDD/AR-CDM for Mt. Baekdu although separate registration to UN-REDD or AR-CDM has already gained worldwide recognition as a typical method in the process of GHG (Greenhouse Gas) reduction project. The results indicate that selecting UN-REDD or AR-CDM in accordance with sub-watershed forest condition could capture 53.2% more carbon dioxide than REDD alone and 21.9% more than AR-CDM alone. It is anticipated that this research output could be used as a realistic evidence to introduce carbon sequestering project in accordance with sub-watershed forest condition.