• The Journal of Korean Association of Computer Education
• /
• v.19 no.5
• /
• pp.55-71
• /
• 2016

Recently, Internet addiction problem has arised due to increasing negative effects about excessive internet use among youth. In this study, by utilizing the '11th youth health behaviors online survey data', we discuss the countermeasures for excessive internet usage of adolescence based on various analysis. we examined the effects of demographic characteristic factors, psychological factors, behavioral factors on internet usage of adolescence. As a result, it was confirmed that there were various variables that influenced adolescent internet usage which were not approached in previous researches. And through these results, we can confirm these variables. In addition, we can also provide countermeasures on excessive internet usages by that of adolescents.

• Journal of the Korean Society of Clothing and Textiles
• /
• v.35 no.8
• /
• pp.890-905
• /
• 2011

This study investigated service quality perception, purchase satisfaction, recommendation intention, and switching intention of fashion consumers according to the types of internet shopping malls. The survey was conducted from February 7 to 21 in 2011, and 294 responses were used in the data analysis. The statistical analysis methods were frequency analysis, factor analysis, reliability analysis, ANOVA, and regression analysis. The result of the service quality perception of internet fashion consumers was classified by site characteristics, reliability, enjoyment, product diversity, responsibility, security, and order convenience. There were significant differences in the site characteristics, reliability, enjoyment, responsibility, and security of service quality perception by the types of internet shopping malls. In addition, the factors of service quality perception that could affect the purchase satisfaction of fashion consumers showed differently according to the types of internet shopping malls. The purchase satisfaction of fashion consumers influenced the recommendation intention in all types of internet shopping malls and the purchase satisfaction influenced the switching intention in fashion specialized internet shopping malls.

• Convergence Security Journal
• /
• v.14 no.3_2
• /
• pp.51-59
• /
• 2014

Korea also has tried to regulate the obscenity which is floating on the Internet in order to protect mainly minors. There are many statutes enacted to prohibit circulating pornographies to minors. However, there were minors who independently disseminate the pornographies to other minors. In the end, I can tell that existing statutes have not at least effectively regulate the obscenity on the Internet. Therefore, this article examines a possible limit of pornography on the Internet for the protection of minors, reviewing the CDA and the U.S. Courts' decisions. This article also examines the existing statutes' standard for regulating obscenity on the Internet in Korea. In addition, the article also tries to make a proposal to Korean legal systems that govern the obscenity on the internet.

• The KIPS Transactions:PartC
• /
• v.10C no.4
• /
• pp.479-484
• /
• 2003

In the current Internet, it is difficult for an Internet Phone to guarantee the QoS due to variable network conditions such as packet loss rate, delay and bandwidth. In addition, the QoS of an Internet Video Phone is more hard to guarantee because of video data. In this paper, we investigate application-level QoS control schemes that can adapt to variable network conditions, and describe an error control scheme and a congestion control scheme. Based on these QoS control schemes, we have designed and implemented an Internet Video Phone System that supports adaptive audio and video delivery. Through experiments, we found that the Internet Video Phone can reduce the packet loss rate considerably as well as adjust the transmission rate considering other TCP flows.

• Journal of the Korea Fashion and Costume Design Association
• /
• v.5 no.1
• /
• pp.47-57
• /
• 2003

Today there are increasing number of internet users. Internet is wide use of banking, shopping, school and studding. Also, internet is used in everyday living and its use is getting larger. Korea has the one of the most use of internet in the world. Most of houses have computer with internet, and there are alot of PC rooms in the streets. anyone can enjoy the internet anytime anywhere. Now, in internet there are group formed by community purpose. The 'dot com' companies was not making much of profit from their goods. However, they came out with an idea "avata" Soon, the avata became a hit and its known for its success. Avata is used for E-mail, name card, post stamp, and chatting. Also, Avata is very popular among chatting service, icon chatting, and 3D graphic chatting. Avata represent the user himself in internet and computer created imaginary space, and it connects between imaginary space and reality, also it exist between real name and nick name. Past years, the internet users were satisfied with their nick name, however resent year users wants to express them more. For the result the "Avata" is created to fulfill the need to express user themselves. There are three different ways to see how Korean react to fashion industry. first, Korea's land structure makes the density of population high, the transmission of information is very fast. Next, collectively is high among Koreans. Finally wide use to internet made the transmission of the fashion information much faster. The User wants to keep up with the fashion at the sametime they want to express themselves, and "avata" is the one that fulfill their needs. New technology and the desire to express themselves made the new term "avata industry". which was never existed before. In addition, the internet markets have potential power. Although, it is in start stage of avata industry. However, the experts say that its possibility of its development is not predictable. In conclusion, watch the development of a situation to analyze the avata industry and develop new avata fashion market.

• Journal of the Korea Society of Computer and Information
• /
• v.14 no.9
• /
• pp.157-165
• /
• 2009

The purpose of this study was to investigate the relationship between internet addiction in adolescent and influencing factor traits. In addition, the relationship between internet addiction and environmental coping strategies were examined. To examine the main purpose. analyzed as followed. According to the results of study. First, What have influencing factors on internet addiction? Second, How about were relationship between multidimensional factors correlation and multiregression analysis? Third, What about were prevention and coping strategies on internet addiction in adolescent period? According to the analysis with coping strategies researches, the results were presented as follows. Results showed that have positive correlation with internet use time, escape from reality, impulsivity, depression, anger control by examined results of Young addiction measure. Significant variables have influencing internet addiction with internet use time, escape from reality internet use, depression, anger control impulsivity. Based on these study results, This paper made a suggestion about prevention prescription and coping strategies of influencing factors on internet addiction in adolescent.

• Journal of Korea Multimedia Society
• /
• v.15 no.12
• /
• pp.1492-1498
• /
• 2012

One of the major issues in current internet architecture is that it was not designed to support the user mobility. In order to overcome this restriction, in this paper, we propose an identifier/locator separation architecture which contain the overlay mapping system to store the identifier-to-locator mapping record. In addition, we design the mobility management scheme base on Identifier/Locator separation above for Furture Internet architecture. We then devise the analysis model to evaluate the signaling cost of our scheme. By conducting the simulation. we show that our scheme can operate with lower signaling cost than other schemes.

• Proceedings of the IEEK Conference
• /
• 2001.06c
• /
• pp.209-212
• /
• 2001

In this paper, an intelligent notification system has been presented. The system operates on both wired and wireless internet. When a new message has been uploaded in a bulletin board systems(BBS) on HTTP web server, it sends the same message to their cellular phones of all members of a given group at the same time via SMS(Short Message Service). In addition, on reading SMS message, those who read them respond to a WAP server using pulling technique via wireless internet. Therefore, the HTTP server does know the members who did not read the message yet. Two different web servers, the HTTP server and the WAP server, running on a single system has been implemented. They share the single database which covers al1 related information about the BBS. The set of experiments shows that the notification system works well as we have expected Thus, we conclude that the proposed system that operates on both wired and wireless internet is the one of successful model for such environments.

• Journal of Information Technology Applications and Management
• /
• v.13 no.3
• /
• pp.107-127
• /
• 2006

Understanding characteristics of Internet businesses from cross-cultural perspective could offer valuable insights on developing business strategy and policy. This work is concerned with revealing divergence and convergence of Internet business models in their financial performance, given organizational conditions and cultural context. For this, we studied the association between organizational attributes (core activity, origination, firm age, and industry) and their effects on a firm's financial performance (gross revenue and net income). Relevant data was gathered from representative Internet firms in Korea and U.S. Data analysis indicated that there exist both similarities and differences between Korea and U.S and year 2003 and 2006. While core activities and industry types of U.S. firms has not been changed much between the periods, Korean firms show much difference. In addition, while core activities and industry type were found to have strong relationship with financial performance, age and origination of a firm weak connections with financial performance. This study is expected to provide a foundation for developing more robust and systematic research model and performing further empirical research in this area.

• KSII Transactions on Internet and Information Systems (TIIS)
• /
• v.12 no.2
• /
• pp.892-905
• /
• 2018

In smart home environment, certificate based signature technology is being studied by communication with Internet of Things(IoT) device. However, block - chain technology has attracted much attention because of the problems such as single - point error and management overhead of the trust server. Among them, Keyless Signature Infrastructure(KSI) provides integrity by configuring user authentication and global timestamp of distributed server into block chain by using hash-based one-time key. In this paper, we provide confidentiality by applying group key and key management based on multi - solution chain. In addition, we propose a smart home environment that can reduce the storage space by using Extended Merkle Tree and secure and efficient KSI-based authentication and communication with enhanced security strength.