• Journal of Digital Convergence
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• v.11 no.3
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• pp.127-138
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• 2013

The age of social network has arrived. Social media is the various online media for sharing of opinions and experiences and open for internet users' participation. As the new communication tools, social media has been in the limelight, threatening the traditional media as alternative media. In globalization, country image is seen as the source of competitiveness of a country. The goal of this study is to examine what impact does the utilization of social media has on country image, and we conducted our analysis in two aspects of social media utilization, usage volume and usage diversity. In addition, we examined the impact of factors that form the country image on purchase intention. The analytical results show that media usage volume positively affects country image, people image, political image and media usage diversity has significant effects on economical image, people image and political image.

• The Journal of the Korea Contents Association
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• v.14 no.9
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• pp.411-427
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• 2014

The interest on the Open Source Software(OSS) has been increasing as the Microsoft's latest Windows XP support ended. In this light trend, this study can contribute to the OSS marketing area. Specifically, it examined that the activation of online brand community about the OSS can affect to prosumer marketing of the OSS utilizing social media platform. In addition, the OSS social media platform users' loyalty for the OSS was investigated. The findings show that content, consumer support, UI, and reward among the activate factors of online brand community significantly affected to the activation of OSS social media platform. The brand reputation, however, was found insignificant to the activation of OSS social media platform. In addition, the activation of OSS social media platform can positively affect to their loyalty for the OSS. It means that participation to the social media activities about OSS and interaction with others in the network can help to form positive attitude for the OSS. In conclusion, the prosumer marketing utilizing social platform can be an important strategy as a new solution of the OSS business in the rapidly changing ICT ecosystem environment.

• Spatial Information Research
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• v.16 no.1
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• pp.79-99
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• 2008

Enterprises as well as central and local governments have tried to apply ubiquitous technology to the actual life on the various types of business and projects. In this paper we develop strategic plan to provide public service on public areas based on needs analysis of public services as well as trend analysis of ubiquitous and web technology. Ubiquitous service model should be based on geospatial web which can incorporate participation and collaboration concepts, as the wire/wireless network system develop rapidly. To achieve this purpose, we suggest the following projects; 1), construction of internet map based on geospatial web technology, 2), development of web contents based on geospatial web, 3), installing ubiquitous equipment, and 4), upgrade Seoul Metropolitan Government's homepage and internet system which can incorporate web 2.0 concepts. Ubiquitous service model should be based on not only development of ubiquitous technology but also needs of consumer such as citizen, enterprises, and public sectors which have an interest in that place. Geospatial web will be the core of development of ubiquitous service models.

• The Korean Journal of Community Living Science
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• v.28 no.4
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• pp.561-579
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• 2017

The rural elderly population has social capital based on regionalism and kinship, which acts as a positive function in terms of their self-efficacy. Self-efficacy refers to the belief in one's own abilities. In general, elderly people with high self-efficacy maintain a healthy life and age successfully. This study examines how the rural elderly population perceive their self-efficacy and social capital and analyzes the role of social capital as a mediating variable. Social capital consists of 4 aspects; trust, norms, network and participation. For this study, data were gathered from 344 rural elderly people aged 60 years and over. The results of this study were as follows. According to the analysis of the structure equation modeling effect, the direct effect of subjective health status on self-efficacy, the indirect effect of the parameters of norms and the total effect were all statistically significant. Second, the direct effect of adult children's support on self-efficacy was significant, and the indirect effects of the parameters of trust, norms and total effect were all statistically significant. This study confirmed that social capital has a mediating effect on the relationship among the subjective health status of the rural elderly, adult children's support and self-efficacy. Furthermore, social capital had a positive impact on the self-efficacy of the rural elderly. Based on these results, a policy for making use of the social capital of the rural elderly should be developed.

• Korean Journal of Childcare and Education
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• v.9 no.3
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• pp.121-145
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• 2013

This study aims to examine the experiences and significance of a mother's learning community, which is a voluntary small get together of mothers who have infants and young children. For this, a participatory observation and in-depth interview were carried out from June 2012 to January 2013 targeting eight mothers who participated in the mothers' learning community. The mother's learning community is organized by mothers who mainly live and raise young children in P city. First, the mother's learning community gave three kinds of experience to mothers: finding ways of communication through the new meetings, a feeling of fulfillment through voluntary participation, and enjoying the pleasure of being recognized from other people. Second, the significance in this experience could be observed to allow children to have the pleasure of rapport with their mothers, to make more conversation at home, and to allow the community to have significance as network of life. The results of this study will be used as basic data in the mother's learning community in the near future, and for casting a lime light for follow-up research.

• Hwankyungkyoyuk
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• v.24 no.1
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• pp.88-101
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• 2011

This study aims to address the current status of ESD(Education for Sustainable Development) in Korean universities since UN DESD was launched in 2005, and to explore the possibilities and challenges in them. For this purpose we conducted questionnaire surveys and case studies on members of university communities which were engaged in green campus activities or interested in SD and ESD. Results of questionnaire surveys showed that most of those who answered the questionnaire were well aware of SD, but had comparatively low understanding of ESD. The highest number of respondents answered that since 2005 they had newly opened courses on SD or ESD, or added contents on SD or ESD to existing ones. Ratio of network participation among ESD-related universities was over 30%, and they appeared to have the highest partnership ratio with NGOs. Not many universities had policies for sustainable school management, and 'green space conservation and ecosystem protection' and 'energy and resource saving campaign and monitoring' were most common sustainable environment protection activities. Through case studies on eight universities, it was discovered that ESD programs in universities took various forms such as whole-university approaches, participatory courses and club activities. We suggest that it is needed to make efforts to find out good examples of ESD in Korean universities and share the results with university leaders, professors and staffs for further development of ESD.

• Journal of the Korean Institute of Landscape Architecture
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• v.29 no.6
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• pp.1-10
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• 2002

The purpose of this study is to establish a model of cultural sustainability in the traditional village. Cultural sustainability is being advanced by promoting the viability of traditional arts and the unique regional features of traditional culture, such as folklore, traditional landscapes, buildings and other environments of outstanding historical value. These cultural resources were also created or occurred at specific geographic locations at certain points in time by different individuals. The content of this study was to develop a model using indicators for cultural sustainability, and to apply and evaluate the model. In older to evaluate the model, Sonwon-ri village in Yongchon, located in Kyungsangbuk-do, was selected as the case study area. The major findings are as follows: 1) Sonwon-ri village has maintained the vernacular landscape except at the entrance of village. Also, the village people have pride and have adapted to the natural environment. 2) Sonwon-ri village has a self-sustaining system and circular network within its environmental capacity. Sonwon-ri village has many historical sites and buildings such as important folk resources, cultural assets, traditional houses and pavilions. 3) The people how the theory of fens-shui which interprets the location of village in relationship to a crane mountain with the village situated as a crane head. These symbolic and cultural elements have an important role in establishing the boundary of the village. From the research it can be seen that Sonwon-ri village kept many cultural sustainability indicators in terms of active factors, physical factors and psychological factors. By analysing the participation of different scientific disciplines and identifying disciplinary categories, this study provides a basis for understanding how cultural sustainability is subjected to research in the field of landscape planning and design.

• The KIPS Transactions:PartC
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• v.16C no.3
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• pp.393-406
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• 2009

This paper introduces two functions added to the current version of ns-2 simulator for better accuracy of IEEE 802.15.4 network simulations. The first one is to automatically place hidden nodes over the ring topology in which the coordinator is centered, when the number of hidden nodes and total number of nodes is given. Collisions of signals can be distinguished into the trace file according to the ways of participation of hidden nodes. The second one is the CCA deferment algorithm described in IEEE 802.15.4-2006 standard which is not implemented in the current version of ns-2. Owing to these additional functions, we can carry out the precise analysis of the performance effects of hidden nodes and CCA deferment algorithm on 802.15.4 networks. Simulation results present at least 66% of performance degradation in throughput and drastic increase of collision probability up to 90% from 65% by just a single hidden node. Besides, 2006 standard for CCA deferment algorithm gives 19% lower collision probability and 38% higher performance.

• Korean Journal of Community Nutrition
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• v.19 no.5
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• pp.459-467
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• 2014

Objectives: The purpose of this study was to suggest the strategies for improvement of home-delivered meal services for the elderly, to identify reasons for recipients to get started with the services and to evaluate the attitude, acceptability and adaptation of recipients to the services from the perspective of life context. Methods: The data was collected through face-to-face in-depth interviews with eighteen low-income elderly recipients of home-delivered meals and analyzed using a qualitative research method. Results: The results were deduced as four themes which comprised of long-term vulnerable socioeconomic contexts resulted in entry to the services, conflicting acceptability to the services, passive adaptation to taking the services, and positive practices to cope with supplement free meals or other services. The service participation was initiated because of a combination of prolonged, vulnerable socioeconomic contexts, including poverty and unexpected life events such as diseases, disability, living alone, aging and unemployment. With regard to taking the services, conflicting acceptability was observed: positive aspects including saving living cost and good quality of meals, and negative aspects including lack of a tailored service and feeling of stigma. Although the recipients needed an individualized service, they did not express their needs and demands for the services and they accepted the unavailability as an accustomed, prolonged vulnerable socioeconomic context. With regard to lack of tailored services, either self-solution such as modification of eating patterns or community-based network and services were used. Conclusions: We suggest that a system to concretely identify recipients' attitude, acceptability and adaptation for home-delivered meal services should be developed in the establishment of a tailored nutrition support system for the low-income elderly.

• Journal of KIISE:Information Networking
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• v.37 no.6
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• pp.483-488
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• 2010

Due to the prevalence of various mobile devices and wireless broadband networks, there has been a significant increase in interest and demand for multimedia streaming services. Moreover, the user can service the participatory video broadcasting service in the mobile device and it can be used to deliver the real-time news and more variety information in the user side. Live multimedia service of user participation should consider not only the video quality but also the delay bounds and continuity of video playback for improving the user perceived QoS (Quality of Service) of streaming service. In this paper, we propose an adaptive rate control scheme, called DeBuG (Delay Bounds Guaranteed), to guarantee the delay bounds and continuity of video playback for the real-time streaming in mobile devices. In order to provide those, the proposed scheme has a quality adaptation function based on the transmission buffer status and network status awareness. It also has a selective frame dropper, which is based on the media priority, before the transmission video frames. The simulation results demonstrate the effectiveness of our proposed scheme.