• Journal of the Korean Institute of Telematics and Electronics C
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• 제35C권5호
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• pp.50-58
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• 1998

We propose an efficient face recognition system for controllinng the access to the restricted zone using both the face region detectors based on facial symmetry and the extended self-organizing maps (ESOM) which have sensory synapses and descriptive synapses. Based on the visual cues of the facial symmetry, we apply horizontal and vertical projections on elliptic regions detected by GHT(generalized hough transform) to identify all the face regions from the complex background.And we propose an ESOM which can exploit principal components and imitate an elastic similarity matching, to authenticate faces of the enlisted member. In order to cope with changes of facial experession or glasses wearing, etc, the facial descriptions of each member at the time of authentication are simultaneously updated on the discriptive synapses online using the incremental learning of the proposed ESOM. Experimental results prove the feasibility of our approach.

• Korean Journal of Social Welfare
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• 제46권
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• pp.404-426
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• 2001

The purposes of study were to analyze the characteristics of case management network for the homebound elderly in Puchon and to identify major factors that affect the number of network member. The population of this study was social workers who provide services to the elderly. The results show that license of social work and information closeness have a significant effect on the number of network member among the independent variables. This finding is important for case management in the network. As observed in relationship characteristics, the community welfare center established by the university and city government roles in promoting service coordination.

• Journal of Information Display
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• 제8권3호
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• pp.22-28
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• 2007

We reported the diffraction analysis of the liquid crystal (LC) binary gratings and the surface anchoring energies for planar and homeotropic alignments. The planar and homeotropic anchoring energies were directly derived based on the linearly distorted director distribution near domain boundaries, in which the distorted lengths correspond to the extrapolation lengths into both planar and homeotropic regions. From the diffraction analysis for the LC binary gratings with various grating periods based on the linearly graded phase model, both distorted lengths into planar and homeotropic regions were simultaneously obtained. In this work, the planar and homeotropic anchoring energies were found to be about $1.4\;{\times}\;10^{-4}\;J/m^2$ and $0.9\;{\times}\;10^{-5}\;J/m^2$, respectively.

• Steel and Composite Structures
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• 제6권5호
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• pp.387-400
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• 2006

This paper discusses the composite mechanism and its effect upon the behavior of a steel reinforced concrete (SRC) member subjected to a flexural load. The relationship between member strength and deformation is established using the bond strength between the steel and reinforced concrete. An analytical model is proposed and used to incorporate the sectional strains and bond strength at the elastic and inelastic stages for moment-curvature relationship derivation. The results from the flexural load tests are used to validate the accuracy of the proposed model. Comparisons between the experimental information and the analytical results demonstrate close moment-curvature relevance, which justifies the applicability of the proposed method.

• 한국신재생에너지학회:학술대회논문집
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• 한국신재생에너지학회 2006년도 춘계학술대회
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• pp.287-291
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• 2006

The IEA Wind agreement for co-operation in the R&D of wind energy system was founded in 1974. The Korea has been a contracting party to the IEA wind energy program since 2003. The contracting parties are designated by the 20 member countries and the EC. IEA Wind agreement is for member countries to exchange information, knowledge and to organize international collaboration on R&D projects called Taskes and Annexes. The Executive Committee approves and controls the R&D Tasks, and its meetings are held twice a year. This paper describes the status of current 7 implementing Tasks that were reported to the recent 57th Executive Committee meeting this year in Brussels, Belgium.

• The Journal of Korean Institute of Communications and Information Sciences
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• 제32권8B호
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• pp.539-546
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• 2007

For better performance and to avoid member service annoyance that results due to joining-clients' waiting durations and time-outs when there are more than one client wanting to join concurrently for Personal Broadcasting System service, there is a need for improving concurrent member joining mechanism. For a more efficient and better performing, this paper apply Overlay Multicast based mini-Overlay Broadcasting Control Protocol(mOBCP) Algorithm on Personal Broadcasting System. mOBCP proposed is performance-effective mechanism, since it considers the case of how fast will children, concurrently, find and join new parents when paths to existing parents are in Failure. The performance comparison, in terms of tree construction time variation and Latency are done through simulations and the results conclude in favour of the Proposed mOBCP.

• Journal of Korean Association for Spatial Structures
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• 제13권1호
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• pp.69-77
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• 2013

This study is the research appling the representative Displacement-Based Design which is the basic concept of Direct Displacement Based Design proposed by Chopra and Goel to original Reinforced Concrete moment frame and determining the thickness of retrofit Steel Jacket about the Maximum design ground acceleration, and developing the more improved Algorithm as well as program by the Retrofit Design method and Nonlinear analysis by the Performance design method before and after reinforcement appling the determined retrofit thickness. It also shows the result of the seismic performance improvement which is the ratio of seismic performance appreciation result yield displacement 19%, yield strength ratio 24%, displace ductility ratio the maximum 27% comparing Multi degree of freedom, column member of Reinforced Concrete with the performance improvement column member considering the thickness of the determined Steel Jacket. The developed Algorithm and program are easy to apply seismic design and application to the original Reinforced Concrete building, at the same time, it applicate to display well the design result of Target displacement performance level about nonlinear behavior.

• The Journal of Information Technology
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• 제4권1호
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• pp.23-37
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• 2001

There is no doubt that electronic commerce facilitates international trade and lower transaction cost and help firms make the best of the opportunities of market access. The comprehensive programs had been implemented to provide better electronic commerce environments by international organizations such as OECD, UNCITRAL, APEC and etc. Especially, WTO plays the most important role to implement efficient forms and rules on electronic commerce after Seattle 3rd Ministerial Conference. Member countries recognize the need to conduct the electronic commerce in compliance with the principles and rules of WTO. However, there are many issues to be solved such as the clarifications of concepts and definitions, the possibility of adaptation of technological neutrality In GATS, the Imposition of taxation in electronic commerce transactions and the methods of protecting copyright as well as trademark. The Implementation of concrete forms and rules of electronic commerce in the WTO will be influential to international trade as the member countries have to adapt them In their transactions. Considering that further discussion will be continued in GATS, we need to analyze the problems and strategies for electronic commerce.

• The Journal of Information Technology
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• 제8권2호
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• pp.121-133
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• 2005

The WTO(World Trade Organization) meetings for service negotiations started in February in 2000. Since then, the member countries have discussed the tourism sector and their expectations and methods of liberalization, based on the proposals they have submitted. The Republic of Korea had already opened hotels and restaurants, travel agencies and tour operator services, and tourist guide services, preceding of WTO service negotiations. However, to comply with the terms of the negotiations, the domestic laws and systems related to tourism should be analyzed according to their adherence to the principles of GATS(General Agreement on Trade in Services), which include market access and national treatment. Thus, the purposes of this study were two-fold: first, regarding the two basic principles of GATS(market access and national treatment), the articles of the administrative laws relating to tourism were examined. Second, proposals from the tourism sectors in the US, Canada, Dominique, EC, Switzerland, and Japan were also summarized and reviewed. Proper responses to service negotiations were proposed based on the results of this analysis. As a result, I can support the GATS classification(w/120) of tourism and the liberalization of tourism in other WTO member countries. I can also support the elimination of obstacles such as economic need tests and nationality requirement. 'Others' category should be considered more carefully according to the competitiveness of the given industry.

• Journal of the Korean Society for information Management
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• 제26권3호
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• pp.189-211
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• 2009

The purpose of this study is to examine the causal relationships among knowledge management(KM) influence factors(leadership, learning culture, member' attitude, reward, knowledge quality, KMS quality), KM activities(knowledge creation, knowledge sharing), KM performance in public enterprise. The results of data analysis by structured equation model(SEM) indicate that learning culture, knowledge quality and KMS quality significantly influence the knowledge creation and sharing. Member' attitude has significant influences on the knowledge creation. And knowledge creation and sharing have a significant affect on KM performance. Based on the results, the potential implications of the strategy for effective knowledge management are discussed.