• Korean Journal of Social Welfare Studies
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• v.41 no.1
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• pp.85-118
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• 2010

This study aims to suggest an analysis method for the research on the transformation of welfare states. To this end, 'restucturization' and 'change inside the structure' were differentiated. The 'restucturization' indicates a fundamental change of the structure itself, while the 'change inside the structure' means the modification of elements inside the structure. If 'abolition', 'substitution'/'entrust' and 'introduction' occurred, the changes are considered the 'restucturization'. Then it is examined, how the competence of the public organizations for social security systems is changed after the 'restucturization'. On the basis of this evaluation measure, the changes of 'restucturization' are defined as 'public-oriented restucturization', 'private-oriented restucturization' or 'status quo'. For analyzing the 'change inside the structure', coverage, entitlement, the level and length of benefit, finance and delivery system were compared within each country. The current study applied this analysis method to the research on the transformations of social security systems of Great Britain, Sweden and Germany.

• Cement
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• s.30
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• pp.20-23
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• 1969

• Proceedings of the Korea Electromagnetic Engineering Society Conference
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• 2000.11a
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• pp.354-358
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• 2000

T-모양의 급전구조를 갖는 마이크로스트립 슬롯 안테나는 정합을 쉽게 이룰 수 있고, 대역 폭이 기존의 슬롯을 가로지르는 급전구조에 비하여 넓었다. 본 논문에서는 역 L-형 마이크로스트립 급전구조를 제안하여 FDTD(Finite Difference Time Domain)법으로 해석하여 안테나를 최적화 설계하였다. 슬롯 폭이 16 mm일 때, 전압 정재파비가 2.0 이하인 조건에서 대역폭은 2.3 GHz를 중심으로 약 48 % 정도의 광대역 특성을 얻었다. 제안된 급전구조는 기존의 슬롯 가로지르는 급전구조의 복사 저항보다 매우 낮았다. 또한 역 L-형 급전구조의 대역폭 특성을 기존의 급전구조의 슬롯릇 안테나들과 비교하였다.

• Journal of Technology Innovation
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• v.24 no.2
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• pp.1-20
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• 2016

This case is to analyze the structure of technology convergence with social network analysis. More specifically, the convergence structure among input technologies mediated with products is analyzed with 2-mode social network analysis. Products are identified in project's goal and coded as the Korea Standard Industrial Classification. The input technologies are coded as the National Science Technology Classification. The subjects were 401 R&D projects applied to '2012 Convergence Technology Development Project for Small and Medium Businesses' promoted by Korea Technology & Information Promotion Agency for Small and Medium Enterprises. IT sectors had the structure of a particular input technology connected to many products, BT sectors also had a few input technology connected to many products but most were connected to specific products. Therefore We have realized that each convergence area had different convergence structure. There were the difference of connectivity centrality between input technologies and input technologies mediated with products. For IT sectors, the embedded S/W were the highest in both cases. For BT sectors, functional cosmetic development and fermentation technology were the highest in input technologies but fermentation technology was not the highest in input technologies mediated with products. This case defines the convergence based on the real projects and the use for managing and planing projects. Therefore, this case was to make a tool to analyze and design technology convergence projects.

• Journal of Korea Technology Innovation Society
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• v.17 no.1
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• pp.242-263
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• 2014

Establishment of efficient cooperative ecosystem of research institutes is important for the efficiency of national innovation system, especially in the era of technology convergence. Performance of institutes inside the ecosystem is dependent on the position of the institutes in the system. This study investigates the relationship between network structure and research performance, and determines significant factors on the research performance. The results of 5 year panel data analysis of SCI journal papers of Korean government research institutes indicate that four network centralities -degree, betweenness, closeness, and eigenvector- and structural holes have significant effect on the research performance of the institutes. Among the four centralities, closeness and eigenvectors are more significant than others. Implications of the results of this study for policy of establishing efficient cooperative system are that increasing the cooperative activities of less active institutes is more effective for research performance than increasing the magnitude of cooperative activities of all institutes. Also, when an institute starts a new cooperative relationship, it is better to have relationship with an active institute first.

• Journal of the Computational Structural Engineering Institute of Korea
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• v.30 no.5
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• pp.371-380
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• 2017

The risk-targeted seismic design concept was first included in ASCE/SEI 7-10 to address problems related to the uniform-hazard based seismic concept that has been constructed without explicitly considering probabilistic uncertainties in the collapse capacities of structures. However, this concept is not yet reflected to the current Korean building code(KBC) because of insufficient strong earthquake data occurred at the Korean peninsula and little information on the collapse capacities of structures. This study evaluates the risk-targeted seismic performance of steel ordinary concentrically braced frames(OCBFs). To do this, the collapse capacities of prototype steel OCBFs are assessed with various analysis parameters including building locations, building heights and soil conditions. The seismic hazard curves are developed using an empirical spectral shape prediction model that is capable of reflecting the characteristics of earthquake records. The collapse probabilities of the prototype steel OCBFs located at the Korean major cities are then evaluated using the risk integral concept. As a result, analysis parameters considerably influence the collapse probabilities of steel OCBFs. The collapse probabilities of taller steel OCBFs exceed the target seismic risk of 1 percent in 50 years, which the introduction of the height limitation of steel OCBFs into the future KBC should be considered.

• Proceedings of the Korean Information Science Society Conference
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• 2003.10c
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• pp.31-33
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• 2003

현재 국외에서는 산업계 및 학계를 중심으로 기존의 IPv4와 연동 가능한 IPv6에 대한 연구를 추진하고 있다. 또한 국내에서도 IETF의 표준화 기술을 중심으로 몇몇 기관에서 고정망 중심의 IPv6 전이 메커니즘을 구현하고 있다. 그러나 연동 기술에 대한 연구가 고정망에 중심을 두고 있어 이동망에서의 연동 구조에 대한 연구는 부족한 현실이다. 이와 같이 국내외적으로 IPv6망에서의 이중 스택 구조는 고정망을 기반으로 연구가 진행되고 있지만, 이동 인터넷 환경에서의 전이 메커니즘에 대한 연구는 부족한 실정이다. 따라서 본 논문에서는 이동 인터넷 환경에서의 전이 메커니즘에 대한 시나리오 제안과 요구사항 분석을 하고, 절기서 제안된 메커니즘들 중 6to4에 이동성을 적응했을 때의 성능 측정 결과를 제시한다

• Proceedings of the Korean Information Science Society Conference
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• 2012.06d
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• pp.211-213
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• 2012

인터넷 상에서 사용자들에 의해 생성되는 위치기반 컨텐츠의 종류와 형태가 관련 서비스와 함께 다양해지고 있다. 본 논문은 이러한 컨텐츠를 위한 컨텐츠 중심 네트워킹의 구조(Framework)를 제시한다. 제안하는 컨텐츠 중심 네트워킹 구조는 3가지 구성요소로 이루어진다. 가장 기반이 되는 첫 번째 요소는 Context에 기반한 컨텐츠 명명(Content Naming)이고, 두 번째 구성요소는 컨텐츠 중심의 네트워킹의 핵심 구성 요소인 캐쉬의 운용을 위한 메타 알고리즘이다. 마지막 구성요소로서 위치기반 컨텐츠에 대한 요청 및 획득을 위한 전달 메타 알고리즘을 제시한다.

• The Journal of the Korea institute of electronic communication sciences
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• v.12 no.3
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• pp.445-450
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• 2017

In this paper, the directional coupler with half-power division is designed and fabricated by using the vertical coupling structure based on the CPW transmission-line. Even-mode and odd-mode of the vertical coupling structure can be analyzed by the conventional CPW-line and the CBCPW-line, respectively, with half thickness of the substrate. The directional coupler is designed by using the tefron substrate with the dielectric constant of 2.55 and the thickness of 0.76mm. Manufactured directional coupler has the center frequency of 2.45 GHz and the bandwidth of 66.1%. Also, the return loss and isolation are 19.52dB and 19.47dB, respectively, at the center frequency.

• The Journal of the Korea Contents Association
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• v.12 no.11
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• pp.68-75
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• 2012

The terrestrial television broadcasting has increased the number of the specialized job drama in the programming in 2000's, for overcoming the limit of the materials and reflecting the new sociocultural phenomenon valuing the specialized job. This drama benefits from good audience and huge fans, while the low average rate of audience shows the limit of competitiveness of this new genre. The text analysis clarifies three traits of the specialized job drama. At first, this genre is characterized by the variety of materials and the attempt of realistic description. Then, its narrative structure is organized so as to develop a story based rather on the success of career than on the relation of love. Finally, its last trait lives in the character of the heroes which is a creation based on the narrative structure.