• Journal of Preventive Medicine and Public Health
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• v.38 no.1
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• pp.53-60
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• 2005

Objectives : To identify the relationship between the internet addiction of adolescents and their Health Promotion Lifestyle Profile and Perceived Health Status, and thereby to detect the impact of internet addiction on the health of adolescents, produce the basic information necessary to develop a prevention program for internet addiction and to plan for a health promotion program. Methods : This study was designed as a cross-sectional study, and the subjects were the second-grade students of three junior-high and three high schools located in the city of K in Kyung Gi Province. Out of 769 subjects, 764 completed the questionnaires (99.3%); 369 (48.3%) junior-high school students and 395 (51.7%) high school students. The questionnaires were composed of Young's Internet Addiction, Health Promotion Lifestyle Profile, Perceived Health Status, and general characteristics. We used t-test, ANOVA in means comparison between groups, X2-test in frequency analysis, and multiple regression analysis in multivariate analysis, using the SAS $8.1^{\circledR}$ program. Results : There was a statistically significant difference in Health Promotion Lifestyle Profile according to internet addiction status (severe addiction vs. other status, p<0.0001). The Perceived Health Status scores was lowest in the severe addiction group (p<0.001). There was also a significant negative correlation between internet addiction and Health Promotion Lifestyle Profile (p<0.0001). The results of multiple regression showed that Young's Addiction Score was significant for the subjects' Health Promotion Lifestyle Profile after controlling for other variables (p<0.0001). Conclusions : This study showed that the severe internet addiction group had the lowest score in Health Promotion Lifestyle Profile and Perceived Health Status, which suggests that the addiction could have a negative effect on the health status of adolescents.

• International Commerce and Information Review
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• v.5 no.1
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• pp.203-222
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• 2003

Owing to the digital revolution, Internet Commerce and Electronic Commerce is having a profound influence on the global trade and internal commerce, revolutionizing the way of doing business and making payment. The entrance of the Internet has a prominent for spread of Electronic Commerce and those phenomenons will result in paperless trading and cashless trade By virtue of Internet, an increasing share of business transactions occurs online. Electronic payment is essential for the smooth progress of the electronic commerce as electronic payment plays the important role in the electronic commerce. Traditionally international settlement systems such as letters of credits, remittance and documentary collections operated as an important and popular method of payment. Now, information technology has made it possible to pay for the sale of goods and services over the internet. In international trade, there are service providers (Bolero, TradeCard, @Globaltrade) to settle payment electronically through the Internet.

• Asian Journal for Public Opinion Research
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• v.3 no.2
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• pp.84-105
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• 2016

The instability of social norms on the Internet causes the diversity of social identification. Meanwhile, the anonymity of online social identity and the chaos of the role-playing among the interacting participants cause an ambiguity of identity recognition, which intensifies anxiety about interpersonal interaction. Methods that promote face-to-face interpersonal interaction through the reconstruction of the identification to the social system and intergroup trust is worth further research. Based on a telephone survey of urban residents in thirty-six cities in China (N=1080), the study focuses on the influence of Internet use on interpersonal interaction of urban residents and the mediation effect of social identification. The results show that Internet use has a negative effect on the interpersonal interactions of urban residents, and social identification plays a mediating effect between Internet use and interpersonal interaction. Implications of the results are discussed.

• Journal of Information Technology Applications and Management
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• v.14 no.1
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• pp.75-97
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• 2007

Recently, the growth of the Internet shopping malls around the world has been increasingly accelerated based on the great advances of IT. Nevertheless, in China the Internet shopping malls have not rewed up relatively. Therefore, this paper has a purpose to discover the factors influencing the vigor of the shopping malls in China and mechanisms on interrelationships among the factors, focusing on customers' trust. To analyze the Chinese Internet shopping mall market from a wider perspective, our research model includes the antecedents from the aspects of shopping mall quality, customer characteristics, environmental features through reorganizing comprehensively various factors considered in the previous studies, and uses customer trust as an intermediate factor and purchasing intention as a dependent factor. It is expected that the implications of this study can help Chinese government agencies related to Internet shopping malls and managers for them make decisions on their policies and strategies effectively.

• Journal of Digital Contents Society
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• v.11 no.3
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• pp.367-374
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• 2010

The technology of wireless internet has been recently developing very fast and affecting everyday life using mobile media. In this paper, we propose an algorithm that can get necessary information such as image pixels from photos taken by mobile phones and search approximate values from reference database in the internet. This algorithm is expected to enable us to use a mobile phone to take a picture of something we see in every day life and go online to search for some information on that entity in the internet. An example system employing this proposed algorithm is illustrated in this paper.

• Journal of the Korean Society for Precision Engineering
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• v.20 no.5
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• pp.108-115
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• 2003

This paper is concerned with the development of Internet-based robot system controlled on the remote site via the Internet. In order to draw the public attention into this exciting system, we built the simple system by which a robot is moved in response to answer for the given OX quizzes. As the primary research fer Internet-based robot control, this study focuses on the development of user-friendly interface by which a beginner achieves information for a robot on the remote site from the 3D virtual simulator and the real camera image. for the compensation of Internet time delay, position prediction simulator is implemented in the user interface.

• Journal of the Korean Operations Research and Management Science Society
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• v.27 no.3
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• pp.75-92
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• 2002

This paper is concerned with proposing a new market strategy for the segmented markets of the Internet stock trading. Many companies are providing various services for customers. However, the internet stock trading market is glowing rapidly absorbing a wide variety of customers showing different tastes and demographic information, so that it is necessary for us to investigate specific strategy for the segmented markets. General strategy so far in the Internet stock trading market has been to lower transaction fee according to the market trend. As the advent of rapidly enlarging market, however, more specific strategies need to be suggested for the segmented markets. In this respect, this paper applied a self-organizing map (SOM) to 83 questionnaire data collected from the Internet stock trading market in Korea, and obtained meaningful results.

• Korean Management Science Review
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• v.19 no.1
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• pp.29-38
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• 2002

Due to the rapid increase In the Internet traffic volume, ISPs are faced with the definite need of the expansion of server capacity. In order to Provide prompt services for customers and still prevent excessive facility cost, it is critical to determine the optimum level of internet server capacity. The purpose of this Paper is to provide a simple but effective strategy on the expansion of servers capacity according to the increase in internet traffic. We model an internet server as an M/G/m/m queueing system and derive an efficient method to compute the loss probability which, In turn, Is used as a basis to determine proper server capacity. The Process of estimating the traffic parameter values at each server based on log data analysis is also given. All the procedures are numerically demonstrated through the process of analyzing actual log data collected from a game company.

• Journal of Information Processing Systems
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• v.14 no.5
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• pp.1286-1292
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• 2018

To support and protect firefighters in the scene of disaster, this research suggests an Internet of Things (IoT) system architecture that can be configurable and applicable to firefighting and rescue in various disaster situations. The proposed approach provides increased adaptability and reusability of systems compared to existing approaches. To validate the feasibility of the approach, a system of systems based on the architecture was developed and successfully tested for a specific firefighting and rescue scenario in a given test environment.

• Journal of the Korean Society of School Health
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• v.25 no.1
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• pp.31-38
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• 2012

Purpose: This study was conducted to understand the relationships between mental health, level of depression, and internet addiction among elementary school students in a rural area. Methods: The survey was carried out on a convenience sample of 212 elementary school students during May of 2008. Results: In results, There were 17.5% of risk group of mental health level, 12.6% of depression level, and 2.8% of internet addiction among subjects. It represents statistically significant positive correlation between depression level and internet addiction. Conclusion: In conclusion, there were considerable numbers of risk group in mental health and depression level among elementary school students. Therefore, the development of mental health program for preventing depression and internet addiction should be needed.