• Journal of KIISE:Information Networking
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• v.31 no.1
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• pp.101-111
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• 2004

As different from wired internet, wireless internet has limitations due to the following characteristics; low bandwidth, frequent disconnection, low computing power, small screen in user terminal, and user mobility. Also, wireless internet server should be scalable to handle a large scale traffic due to rapidly growing users. Wireless proxy servers are used for the wireless internet because their caching and transcoding functions are helpful to overcome the above limitation. TranSend was proposed as a clustering based wireless proxy server but its scalability is difficult to achieve because there is no systematic way to do it. In this Paper. we proposed a clustering based wireless internet proxy server which can be scalable in a systematic way. We performed experiments using 16 PCs and experimental results show 32.17% performance improvement of the proposed system compared to TranSend system.

• Journal of Korean Academy of Nursing
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• v.40 no.3
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• pp.378-388
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• 2010

Purpose: This study was designed to build a theoretical frame to provide practical help to prevent and manage adolescent internet game addiction by developing a prediction model through a comprehensive analysis of related factors. Methods: The participants were 1,318 students studying in elementary, middle, and high schools in Seoul and Gyeonggi Province, Korea. Collected data were analyzed using the SPSS program. Decision Tree Analysis using the Clementine program was applied to build an optimum and significant prediction model to predict internet game addiction related to various factors, especially parent related factors. Results: From the data analyses, the prediction model for factors related to internet game addiction presented with 5 pathways. Causative factors included gender, type of school, siblings, economic status, religion, time spent alone, gaming place, payment to Internet cafe$\acute{e}$, frequency, duration, parent's ability to use internet, occupation (mother), trust (father), expectations regarding adolescent's study (mother), supervising (both parents), rearing attitude (both parents). Conclusion: The results suggest preventive and managerial nursing programs for specific groups by path. Use of this predictive model can expand the role of school nurses, not only in counseling addicted adolescents but also, in developing and carrying out programs with parents and approaching adolescents individually through databases and computer programming.

• Culinary science and hospitality research
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• v.10 no.2
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• pp.59-71
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• 2004

This study .is about marketing of menu-delivery-web site through internet which is getting bigger in working-together-couples. The purpose of this study is suggesting the way which can make internet marketing to activate by means of analysing of a certain enterprise's homepage with marketing mix method. We draw the findings which is seperated by goods, price, promotion, distribution, other service according to marketing constituents. As a result of research, it was found that each company has given much more weight on some part in internet marketing's field of activity. In general, they put an empasis on activity of goods and promotion. On the other hands they didn't consider prices and delivery to be important compared with other parts. In a field of price, menu-site just announced price but in further advance, it had better offer and compare two price level when customer used menu-delivery-web site or not. And that site needed to promote and to be advertised what customer who just think using web site was expensive have benefit in the price. One of the most important things about internet-marketing was that fast and exact feedback and community made each enterprise to be able to help to communicate with customer. For these strategy to execute effectively, first company's name should be known well and goods and service the company had should be well advertised. But first of all, differentiated strategy should precede through consistency of taste and quality, consistant information update as a internet-company and sincere homepage management.

• Journal of Family Resource Management and Policy Review
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• v.11 no.4
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• pp.21-36
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• 2007

As online shopping is expanding rapidly, the damages undergone by consumers are also dramatically increasing. This research mainly focused on the damages experienced through Internet shopping. The purpose of this study was to develop a standardized scale to measure damages sustained through an Internet shopping mall. A preliminary 35-item scale was developed through a literature review, and 1,230 consumers responded to an online survey using the preliminary scale. This research was supported by the surveys conducted on consumers who had previously shopped at an Internet fashion mall. This research was conducted with the intention of not only supplying academic data on the damage sustained by consumers, but also understanding the consumers' basic behavior patterns. Then a series of tests, such as test-retest, item-to-total correlation, Cron bach's reliability coefficient and factor analysis, were conducted using the survey data and a final scale with 26-items was constructed in the end. The damage sustained in Internet shopping malls scale for consumers consisted of three factors: 1. Trouble with safety 2. Trouble with payment and delivery; and 3. Trouble with after-sales services.

• The Mathematical Education
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• v.39 no.1
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• pp.71-80
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• 2000

As the new century begins, it is clear that K-l2 education is going through a major change. The increasing power and affordability of personal computers along with wide spread use of the Internet has not only changed the landscape for communication but it has opened up new and exciting opportunities for education. One of the ways that Internet could help improve education is to act as an interactive communication link to gather the knowledge and experience of all the teachers and to serve as an open forum for discussing and exchanging innovative ideas. But developing a successful site is not an easy task since the success of the site depends on the level of participation and cooperation of teachers. In this paper, learnings derived from the development of an interactive web based resource center for K-12 mathematics teacher are described and recommendations for developing an effective site for teachers are suggested. The development of an interactive resource center for mathematics teachers showed that while interest for a web based resource is very high, the main obstacle for effective teacher participation is lack of easy accessibility of internet by teachers, and lack of computer and internet training for teachers. The technical issues regarding hardware installation, software development and cost were minimal. Accessibility will improve in time as more and more schools are connected to the internet, but this alone will not be enough. The study suggests that in order to bring together teachers on the internet more effort needs to be made in training teachers on the use of computers and the internet.

• Asia pacific journal of information systems
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• v.19 no.4
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• pp.1-28
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• 2009

Banking industries have continuously innovated through technology-enhanced products and services. Many studies have recognized the importance of the Internet in banking industries, arguing that it has been widely adopted. Many studies published on the Internet banking in specific countries are mostly related with such issues as internet banking adoption and acceptance, security and risks of online banking system, and interface design. Several studies have been done to examine the differences and similarities between other banking channels and the Internet banking. However, to the best of our knowledge, only a limited number of studies has examined the differences and similarities between two specific countries in order to create a new customer satisfaction model. In this research, we studied the internet banking satisfaction model by comparing two countries: South Korea and Indonesia. We conducted an empirical study based on the data collected in both two countries. In this research, we found that countries which have adopted electric banking services, particularly between a country with high ICT adoption and a country with low ICT adoption, show different satisfaction trends. Based on the study results, herein we provide discussion, managerial, and practical implications.

• Journal of the Korea Society of Computer and Information
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• v.18 no.11
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• pp.153-158
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• 2013

The purpose of this study was to analyze the impact of internet addiction by self-esteem level. Most of the existing research has introduced a variety of methods to treat the addiction but the study for casual factors are not entirely satisfactory. Internet addiction is intensified by a variety of casual factors, but during the survey to validate the hypothesis that the biggest impact is the self-esteem level. According to this study, psychological factors of self-esteem is caused an internet addiction than social environmental factor and familial factor. The results of this study can be utilized in a variety of programs to increase the level of self-esteem as a reference for the treatment of internet addiction.

• International Journal of Computer Science & Network Security
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• v.22 no.9
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• pp.15-22
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• 2022

The Tactile Internet technology is considered as the evolution of the internet of things. It will enable real time applications in all fields like remote surgery. It requires extra low latency which must not exceed 1ms, high availability, reliability and strong security system. Since it appearance in 2014, tremendous efforts have been made to ensure authentication between sensors, actuators and servers to secure many applications such as remote surgery. This human to machine relationship is very critical due to its dependence of the human live, the communication between the surgeon who performs the remote surgery and the robot arms, as a tactile internet actor, should be fully and end to end protected during the surgery. Thus, a secure mutual user authentication framework has to be implemented in order to ensure security without influencing latency. The existing methods of authentication require server to stock and exchange data between the tactile internet entities, which does not only make the proposed systems vulnerables to the SPOF (Single Point of Failure), but also impact negatively on the latency time. To address these issues, we propose a lightweight authentication protocol for remote surgery in a Tactile Internet environment, which is composed of a decentralized blockchain and physically unclonable functions. Finally, performances evaluation illustrate that our proposed solution ensures security, latency and reliability.

• The Journal of the Institute of Internet, Broadcasting and Communication
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• v.10 no.1
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• pp.129-135
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• 2010

This study practically analyzed the relationships of Internet addiction, self-esteem, interpersonal relations and maladjusted behaviors according to family types and in particular, made a practical analysis about whether self-esteem, interpersonal relations and maladjusted behaviors have mediation effects in the relationship between family types and Internet addiction. As a result of regression analysis, the Internet addiction according to family types was a negative relationship and significant. Family types were positively related to self-esteem. As for interpersonal relations, family types were significant as a positive relationship. On the other hand, maladjusted behaviors were proved that they have a negative relationship with family types like the Internet addiction. That is to say, even the mediation effects that family types through self-esteem, interpersonal relations and maladjusted behaviors related to Internet addition were verified. As a result, it was concluded that self-esteem, interpersonal relations and maladjusted behavior factors play mediator roles between family types and Internet addiction.

• Journal of Internet Computing and Services
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• v.6 no.5
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• pp.143-154
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• 2005

This paper presents a reliable multicast transmission for the advertising-supported Access Point in which a user can use a wireless network access service through receiving the advertisement. In this paper we propose a application-layer multicast protocol that controls a transmission rate of the mobile device for the reliable multicast in wireless LAN environment. Internet advertising includes all means and medias for advertising on the Internet in order to raise sales or popularity of the products or services. Since the current Internet advertising systems are passive, the target systems are exposed to unspecified persons and its exposure rates of the advertisement are changeable and unpredictable. In this paper, we propose an Internet advertising system, with which users can access the wireless Internet without charge, advertisers can provide customized advertisement according to location, time, and categories of users, and owners of network infrastructure can manage the system with a low cost.