• Korean Chemical Engineering Research
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• v.52 no.6
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• pp.727-735
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• 2014

For improved sustainability of the biorefinery industry, biorefinery-byproduct glycerol is being investigated as an alternate source for hydrogen production. This research designs and optimizes a hydrogen-production process for small hydrogen stations using steam reforming of purified glycerol as the main reaction, replacing existing processes relying on steam methane reforming. Modeling, simulation and optimization using a commercial process simulator are performed for the proposed hydrogen production process from glycerol. The mixture of glycerol and steam are used for making syngas in the reforming process. Then hydrogen are produced from carbon monoxide and steam through the water-gas shift reaction. Finally, hydrogen is separated from carbon dioxide using PSA. This study shows higher yield than former U.S. DOE and Linde studies. Economic evaluations are performed for optimal planning of constructing domestic hydrogen energy infrastructure based on the proposed glycerol-based hydrogen station.

• Journal of the Institute of Electronics Engineers of Korea TC
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• v.43 no.6 s.348
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• pp.39-45
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• 2006

n a hybrid ad-hoc network, wired network and a mobile ad-hoc network are connected by the internet gateway. To provide seamless service for internet users in the hybrid ad-hoc network, an efficient internet gateway selection technique and a fast handover technique are needed. In this paper, we propose a seamless handoff technique for providing mobility of mobile hosts in hybrid ad-hoc networks. The proposed internet gateway re-registration algorithm improves general handoff performance. Moreover, the handoff processing time within certain range of area is reduced by using mobility management agent(MMA). In addition the packet loss is reduced when handoff occurs out of the range of MMA by tunneling technique.

• 한국정보교육학회:학술대회논문집
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• 2005.08a
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• pp.314-321
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• 2005

교육정보화 사업은 제 1, 2단계 교육정보화 종합발전 방안의 큰 틀 안에서 성공적으로 추진되어 왔다. 제 1단계 교육정보화 종합 계획에서 물적 기반 구축을 중심으로 이루어지던 교육정보화 정책이 2001년부터 시행된 제 2단계 교육정보화 종합 발전 방안에서는 활용 중심의 교육정보화 방향으로 전환하여 수행되어 왔다. 제 2단계 교육정보화 종합 발전방안이 종료되는 2005년 현 시점에서 돌이켜 보면, 교육정보화 인프라 구축 및 물량 투입 중심의 정보화 사업을 추진해 왔으며 그 결과 다른 여러 나라와 비교해서 손색이 없을 정도로 교육 현장에 정보화 환경이 조성되고 있고, 교육정보화를 통한 교육 혁신의 중요성을 인식하고 있다. 그러나 현재 학교에 보급된 교육정보자원은 학교마다의 실정을 고려하지 않은 대부분 공급자 중심의 획일화 된 규격에 일부 자원의 경우 여러 가지 이유로 충분한 활용이 이뤄지지 못하고 있다. 또, 교육정보자원의 관리 측면에서는 관리 주체가 학교마다 다르고 제대로 지정되지 않은 경우도 많아 업무의 효율성과 관리의 용이성이 떨어지고 있다. 따라서 본 연구에서는 10 여 년 동안 일선 학교에 보급된 교육정보자원을 보다 효과적으로 운영하기 위해서 현재 교육정보자원에 대한 활용, 관리 실태를 정확하게 파악하고, 조사 분석을 통해 문제점을 도출하고 이를 토대로 교육정보자원의 내실화 방안을 수립하여 제반 교육정보자원의 역할 및 기능을 재정립하고, 향후 신기술 수용 및 교육환경 변화에 능동적으로 대처할 수 있도록 하고자 한다.

• Journal of the Korea Convergence Society
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• v.9 no.4
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• pp.201-208
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• 2018

The purpose of this study is to analyze the demand for the science park development as a regional innovation hub to strengthen the internationalization capacity of local governments and to promote international exchange and cooperation based on public - private partnerships. For this, i)the main areas of interest and expectation for international exchange and cooperation, ii)preference for major projects, and iii)demand for development cooperation projects were identified, and it was figured out iv)what the core program is for cities of developing countries through network analysis using the UCINET program. Through these analysis, it was found that cities in developing countries wanted exchange and cooperation projects for the development of industrial and economic sectors. Especially, they wanted to develop industrial infrastructures and transfer advanced systems to foster regional strategic industries. In addition, the demand for the development of science park as a development cooperation project was found to be significant. Therefore it could be inferred that cities in developing countries want to develop a science park as a platform for regional development and industrial development, and to acquire development experience of advanced cities through continuous exchange and cooperation.

• Journal of the Korea Convergence Society
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• v.9 no.8
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• pp.355-363
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• 2018

This study is to provide insights for developing strategies and policy of MICE industry in Korea. Identifying current global statuses, trends, characteristics and analysing the strategic opinions of MICE experts', some strategies and policies were driven, which to activate MICE industry. Compared to Korea, America has comparative advantages in the size and configurations of MICE infrastructure. In order to get competitive edge, Korea needs to utilize various fused contents and stories of K-Series in MICE industry. Unique Venue and MICE destination development, which provide special experiences during the MICE participation, family friendly and children education oriented MICE environment policies are needed. Also, providing fun and Entertainment for MICE participants, demand for 'Green MICE' and medical tourism for the participants should be counted in developing strategic MICE policies.

• Journal of Science and Technology Studies
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• v.9 no.2
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• pp.79-102
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• 2009

This study reviews the issue of public interests of technologies required in industrial technology policy as well as the demand for changes in industrial technology policy as result of the migration from catch-up to post catch-up innovation system. In fact, the importance of public interests which served as the rationale for government intervention in industrial technology policy have gradually faded, which invited controversies over the legitimacy and effectiveness of government intervention in promoting specific technologies or industries. Today, the existing policy framework has to change to correspond to the post catch-up environment which requires creative technology development. In this context, the Korean government needs to reduce direct support for certain companies or technologies, but increase R&D investment in energy, environment and health and welfare to enhance public interests of technology innovation activities.

• Journal of the Korean BIBLIA Society for library and Information Science
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• v.22 no.1
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• pp.155-170
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• 2011

The purpose of this study was to analyze whether the promises of library field were, what the promises of candidates were, and whether the content of the promises showed the dissimilar tendency or discrepancy. The starting point of this study was that the library-related issues should be raised in the local election in order that library-related problems in the local area were considered as the policy. The standpoint of this research was based on the notion the library-related problems could be settled if the candidates have an interest in the library field. The range of this research was limited in the election conducted in June 2. 2010. Candidates' promises were collected through a questionnaire, categorized and analyzed by subject. According to the result of analysis, the most candidates had interest in establishing of library infrastructure, on the other hand they had no interest in collection development, library policy, allocation of budget, and job creation for librarian.

• Journal of the Korea Institute of Information Security & Cryptology
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• v.25 no.1
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• pp.165-172
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• 2015

Recently large amounts of customer information has leaked ranging from public institutions to the large-scale of portals, and similar information leakage incidents owing to the absence of personal information management have subsequently occurred. Therefore, the security infrastructure in which leakage of internal data can be blocked fundamentally is emerging as a key issue. An integrated identity and access management architecture which performs user access and its rights management, authentication and audit of the business systems is more important to improve the efficiency of business. In addition, this approach is emerging as a safe and effective ways for identity and access rights management. In this paper, we analyze how an integrated approach for identity and access management to improve the efficiency of the computational work and to strengthen the security in local government administration should be constructed, and proposed the preferred solution.

• Korean Business Review
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• v.18 no.2
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• pp.197-223
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• 2005

The industrial cluster policy of 21st century rise to the focus method of regional economic promotion, therefore, the importance of study in cluster identification and mapping as policy task will bring into relief. This paper will confirms the estimate index and policy of industrial clusters with regional industry. The result in this case study, Cluster development should embrace the pursuit of competitive advantage and specialization rather than simply imitate successful clusters in other locations. This requires building on local sources of uniqueness. Government should reinforce and building on existing and emerging clusters rather than attempt to create entirely new ones. This sort of role for government is very different from industrial policy. The aim of cluster policy is to reinforce the development of all clusters. Not all clusters will succeed, but market forces should determine the outcomes. In other words, government should build on market- oriented system and innovative infra. The result of this study is meaning to the development of objectivity estimate index and derivation of cluster-focused policy with a case study of industrial clusters.

• Spatial Information Research
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• v.17 no.1
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• pp.15-23
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• 2009

For the development and management of u-City(ubiquitous city), Ubiquitous City Construction Law was enacted(March 3, 2008) to form the legal basis of u-City plan, construction and managements afterwards. Among u-City elements, the u-City Management Center has its own meaning and importance in roles which are crucial to the u-City developments, and its legal establishment is one of the core u-City realization factors. In spite of its crucial position for u-City, the legal arrangement of its basis concept, physical/systematic structures, and managerial finance sources and their standardizations are very immature. Therefore, the purpose of this study is to analyse its overall problem issues and then to suggest the basic directions and enforcement strategies to form its legal basis.