• Child Studies in Asia-Pacific Contexts
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• v.3 no.2
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• pp.81-103
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• 2013

This study explored social media use among 50 adolescents attending a public high school in a non-Western community. Adolescents participated in focus group interviews and completed a written self-report survey. Findings revealed that these teenagers use electronic communication forms such as phone texting and social networking sites to connect with friends and family. They show a preference for Facebook, YouTube, and Instagram, do not engage in risky Internet behavior, and acknowledge both positive and negative aspects of electronic communication forms. In addition, their selection of electronic communication forms is dependent upon several factors that include the strength of the relationship and type of discourse exchange. For example, they reserve phone texting and cell use, which are more private communication mediums for family and friends. Electronic communication did not replace face-to-face interactions; rather it complemented and extended those interactions. Findings support existing literature on adolescent social media use and those shared with other collectivist cultural groups.

• Proceedings of the Korean Society of Computer Information Conference
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• 2012.07a
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• pp.241-242
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• 2012

본 논문에서는 자영업자들이 매출액을 향상을 위해 스마트 폰 또는 패드에서 사용할 수 있는 모바일 매장관리시스템을 설계하고 구현한다. 모바일 매장관리시스템은 웹서버와 매장관리 앱으로 구성된다. 웹 사이트에서는 매장관리 앱과 연동하여 제품 입고 및 출고 관리, 재고관리, 고객관리 데이터를 데이터베이스에 저장할 수 있도록 구현한다. 또한 페이스북과 트위터를 통하여 고객들에게 제품을 홍보할 수 있는 SNS 모듈을 구현한다. 매장관리 앱은 안드로이드 플랫폼 기반으로 매장관리시스템을 실시간으로 원격 관리하는 기능을 구현한다.

• Journal of Agricultural Extension & Community Development
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• v.15 no.3
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• pp.499-531
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• 2008

Rural Traditional Theme Villages are one of the village-based businesses, which obtains excellent results. However, it also has brought negative results such as splits in locals due to income disparity, and ill-advised development which does not consider surrounding potential resources, etc. So, this study analyzes several problems of Rural Traditional Theme Villages, and proposes how Rural Traditional Theme Villages can be revitalized by benchmarking other successful cases. First, it is important to pursue differentiation of operating programs for Rural Traditional Theme Villages. Second, it is possible to give weight to elements which show efficiently rural atmosphere to enhance images of Rural Traditional Theme Villages. Third, expanding budget support and securing a new route for budget are definitely needed to cultivate self-growth capability of villages. Fourth, it is necessary to apply experts and facilities of local-based universities, cooperate with relevant organizations, and nurture local leaders by various means such as study in/visits to advanced regions at home and abroad and experts training. Localgovernment should be in charge of nurturing talented people. Fifth, it is necessary to reinvigorate rural economy by networking each Rural Traditional Theme Village, providing a wide range of information on diversified villages to people in cities, and promoting consumption. Moreover, securing immovable customers is important through networking city-rural exchange with city consumers and other organizations, and sisterhood relationship, membership businesses and events. As mentioned above, it is expected that Rural Traditional Theme Villages will be able to be developed continuously as a model for rural revitalization, which is stagnant, by expanding city-rural interchange.

• The Journal of the Korea Contents Association
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• v.16 no.10
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• pp.267-276
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• 2016

This study was conducted to explore the possibilities of educational use of social curation service, which is the third-generation social networking service called the "matters of interest type." To this end, the study selected nine college students, then have them use social curation service for about 50 days, and analyzed their responses by performing the focus group interview (FGI). As a result of the analysis, social curation service was found to have strong points, including collection of various types of information, classification and summary through creation of my own category, possibility of constant updating of matters of interest, and reduction of relative deprivation compared to existing social networking services. To solve these issues, constant promotion was needed. From the aspect of educational use, it was found that social curation service had possibilities for individuals and teams: For individuals, the service enabled voluntary search and use of information, configuration of my own data, and facilitation of self-directed learning. For teams, it enabled discussion and presentation activities through sharing.

• The Journal of Korean Institute of Communications and Information Sciences
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• v.33 no.9B
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• pp.760-766
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• 2008

As a backbone network, wireless mesh network (WMN) aims to provide reliable high throughput network connectivity to wireless users. Recent research has focused on routing and channel allocation to increase the capacity of wireless mesh backbones. Wireless mesh networking is an attractive solution for home, community, and enterprise networks as it is a self-configuring, instantly deployable, and lowcost networking system. In this paper, we empirically evaluate and analyze charateristic of WMN to establish WMN testbed by measurement. We use laptops and net4826 Soekris board widely used. Soekris boards are equipped with one network interface card (NIC) or above in our measurements. We also use paket generator, routing demon tools and so on. Throughout this measurements, we show limitation of Soekris board and software we use, and suggest guideline to establish WMN.

• The Journal of Korean Institute of Communications and Information Sciences
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• v.39C no.3
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• pp.209-222
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• 2014

NCW is a new operational concept for modern warfare to improve the ability to conduct combat by connecting command and control system via network. To realize NCW integrating information sharing system between multiple platforms, CDL is considered as a key component for high-speed transmission of ISR data. Accordingly, further studies to enhance the performance of CDL are being performed around the world, and our government has also developed self-reliant CDL, MPI-CDL. However, the maximum data rate and networking performance of current CDL still fall short of the objective to enable multiple systems to share the large ISR data. Therefore, in this paper, we analyze the development flow and international technical trends of CDL, and present an approach for enhancing data rate and networking capacity of the next generation CDL.

• The Journal of the Convergence on Culture Technology
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• v.6 no.1
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• pp.495-500
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• 2020

VANET (Vehicular Ad Hoc Network), an example of an ad hoc vehicular networks, becomes one of the popular research areas together with the self-driving cars and the connected cars. In terms of the VANET implementation, the traditional TCP/IP protocol stack could be applied to VANET. Recently, CCN (Content Centric Networking) shows better possibility to apply to VANET, called VCCN (VANET over CCN). CCN maintains several data tables including CS (Content Store) which keeps track of the currently requested content segments. When the CS becomes full and new content should be stored in CS, a replacement algorithm is needed. This paper compares and contrasts four replacement algorithms. In addition, it analyzes the transmission characteristics in diverse network conditions. According to the simulation results, LRU replacement algorithm shows better performances than the remaining three algorithms. In addition, even the size of CS is small, the network maintains a reasonable transmission performance. As the CS size becomes larger, the transmission rate increases proportionally. The transmission performance decreases when the network is crowded as well as the number of transmission hops becomes large.

• Korean Journal of Culture and Social Issue
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• v.17 no.1
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• pp.131-154
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• 2011

Rapid social changes due to digitization have created new psychological challenges of adapting and coping. Plays are in the center of these changes. Plays used to be collateral activities of labor in the traditional society and industrial society, but they have become key activities embracing economy, society, culture in a digital society that has been maximized productivity and efficiency. Still, the theoretical approach of plays is based on the industrial societies. Analyzing these points, the psychological impacts of players using multimedia, social networking, and digital games utilizing both of them was dealt in this article. I dealt with multimedia, social networking, and digital games as key characteristic of digital culture. The difference between traditional psychology and Digital Cultural Psychology was dealt in the perspective of self-concept, information processing, and sex role. Then the conclusion on the future directions of Digital Cultural Psychology and its limitations will be followed.

• Asia-Pacific Journal of Business Venturing and Entrepreneurship
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• v.9 no.5
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• pp.21-31
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• 2014

The purpose of this study is to explore the relationships among service quality, self-efficacy, achievement need, and satisfaction in internet shopping mall entrepreneurial education. In this research, service quality consists of four factors including curriculum(lecturer expertise, distinction, and diversity of curricula), type(theory-oriented and practice-oriented), and administration(operation, facility and networking). First, this study investigated how service quality affected both self-efficacy and achievement need, second analyzed how both self-efficacy and achievement need influenced the satisfaction in internet shopping mall entrepreneurial education. The data were obtained from a questionnaire handed out to a random sample of 129 individuals that Cafe 24 in progress in the shopping mall entrepreneurial education. With the information obtained, and after the scales validation process, a structural equation analysis has been conducted. The analysis results indicate that service quality affects both self-efficacy and achievement need. According to the analysis, first, expertise, distinction and operation affect self-efficacy, second both expertise and operation affect achievement need. In addition, the results show that self-efficacy and achievement need influenced the satisfaction of entrepreneurial education. Finally, based in the findings of this study, theoretical contribution and managerial implications are discussed.

• KSII Transactions on Internet and Information Systems (TIIS)
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• v.14 no.3
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• pp.943-961
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• 2020

With the advent of IoT technology and Big Data computing, the importance of WSNs (Wireless Sensor Networks) has been on the rise. For energy-efficient and collection-efficient delivery of any sensed data, lots of novel wireless medium access control (MAC) protocols have been proposed and these MAC schemes are the basis of many IoT systems that leads the upcoming fourth industrial revolution. WSNs play a very important role in collecting Big Data from various IoT sensors. Also, due to the limited amount of battery driving the sensors, energy-saving MAC technologies have been recently studied. In addition, as new IoT technologies for Big Data computing emerge to meet different needs, both sensors and sinks need to be mobile. To guarantee stability of WSNs with dynamic topologies as well as frequent physical changes, the existing MAC schemes must be tuned for better adapting to the new WSN environment which includes energy-efficiency and collection-efficiency of sensors, coverage of WSNs and data collecting methods of sinks. To address these issues, in this paper, a self-organization scheme for mobile sensor networks with mobile multiple sinks has been proposed and verified to adapt both mobile sensors and multiple sinks to 3-dimensional group management MAC protocol. Performance evaluations show that the proposed scheme outperforms the previous schemes in terms of the various usage cases. Therefore, the proposed self-organization scheme might be adaptable for various computing and networking environments with big data.