• Korean Management Science Review
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• v.19 no.1
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• pp.143-162
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• 2002

The concept of revenue management have been used widely In the hotel and all transportation industries, and considered as a good system for managing a perishable asset. Recently, its' application area is being increasingly expanded to service industries such as the travel, the railway, the Internet and the sport industries. Internet business can be classified into several groups according to the characteristics of the individual business. One of groups is Internet Access Servoce business which connects each users to the internet. In this paper, since internet Access Services (IAS) business has a similar property to the service Industry, we will apply a revenue management concept to It. With some modification of existing model developed by Subramanian et.al. for airlines, we suggest the revenue management model being applied to IAS business. Computational experiment shows that the Increase of the revenue Is up to 7% by appluing our model. It means our model has a potential to manage IAS business effectively.

• Journal of Internet Computing and Services
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• v.4 no.1
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• pp.1-8
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• 2003

Nowadays, various wireless internet contents are serviced in a cellular phone. However, because of the memory limit of the cellular phone, you should delete the wireless internet contents periodically. Also it has been quite inconvenient to move the existing data to a new cellular phone. In this paper I proposed MobileFolder to reuse wireless internet contents and provided a simple client application in a VM environment.

• The Journal of Information Systems
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• v.29 no.1
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• pp.289-301
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• 2020

Purpose This study analyzes whether Internet search of cryptocurrency has a causal relationship to return and volatility of cryptocurrency. Design/methodology/approach Google Trend was used as a measure of the level of Internet search, and the parametric tests of Granger causality in the 1st moment and the 2nd moment were adopted as the analysis method. We used Bitcoin's dollar-based price, which is the No. 1 market value among cryptocurrency. Findings The results showed that the Internet search measured by Google Trends has a causal relationship to cryptocurrency in both average and volatility, while there is a difference in causality and its degree according to the search area and category that Google Trend user should set. Because the Granger causality is based on the improvement of prediction, the analysis results of this study indicate that Internet search can be used as a leading indicator in predicting return and volatility of cryptocurrency.

• Journal of the Korean Society of Food Culture
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• v.17 no.5
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• pp.605-618
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• 2002

The purposes of this research were to; (a) identify useful information source; (b) assess the usefulness of the Internet as an information source; and (c) assess the degree of Internet utilization for purchasing process in food service industry. The results were as follows; 1. 'personal experience and colleague recommendation' was perceived as the most useful information source, whereas the most frequently used source was 'Internet web site' for real purchasing practice. 2. the most frequently used purchasing activity through Internet was 'online ordering', followed by 'gathering product/component information', however e-marketplace or Internet bidding were less performed by Internet. 3. acquisition of real time information, rapidity, accuracy, and increasing effectiveness of purchasing process were reported the advantages of Internet utilization. 4. respondents somewhat or strongly agreed with the importance of Internet in terms of present and future purchasing management. The results of the research suggest that Internet should be able to improve purchasing process and enhance buyer-supplier relationship directly or indirectly, therefore food service industry should consider making attempt to new purchasing systems through Internet for strategic sourcing and effective procurement management.

• Journal of the Korea Society of Computer and Information
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• v.12 no.3
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• pp.243-250
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• 2007

The purpose of this study is to examine the relationship between internet addiction and stress of college students. To assess the degree of internet addiction, internet addiction test of the center for online addiction was completed. Subjects were divided into three group depending on internet addiction ; subjects with 20-49 internet scores were grouping as 'normal usage group', subjects with 50-79 internet scores were grouping as 'addiction tendency group', and subjects with more than 80 internet scores were grouping as 'internet addiction group'. In this study it is found that interpersonal relationship stress is significantly related to internet addiction. Also, the result of this study shows that home background stress and school background stress have influence on internet addiction.

• Journal of the Korean Home Economics Association
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• v.40 no.4
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• pp.27-44
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• 2002

The purposes of this study were 1) to identify predictors of consumers′ apparel purchase on Internet shopping malls and 2) to determine reasons that respondents didn\`t have purchase intention of apparel on Internet shopping malls. The data were collected via a self-administered questionnaire from 204 male and female students who experienced shopping for apparel on Internet shopping malls, living in Cheju and analyzed by factor analysis, multiple regression analysis, t-test and paired t-test. Two predictors were found regarding purchase of apparel on the "big box" Internet shopping malls which sells various product categories; apparel quality and fun of order process. On the speciality Internet shopping malls which sells only fashion goods, diverse apparel assortment and easy handling and fun of information search were identified as predictors of apparel purchase. Reasons that respondents didn′t have purchase intention of apparel on Internet shopping malls were summarized and labeled as: difficulty of decision making due to virtual shopping environment, insufficiency of diverse apparels, users′ unease handling, risk of incredible apparel quality, unfamiliarity of Internet shopping and risks of unsecurity. Difficulty of decision making due to virtual shopping environment was determined as the most important factor of reasons that respondents didn′t have purchase intention of apparels in website.

• Research in Community and Public Health Nursing
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• v.17 no.3
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• pp.376-386
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• 2006

Purpose: This study was conducted to analyze the exposure of female high school students to Internet pornography and its related factors. Methods: A total of 392 female high school students were selected through convenience sampling. Data were collected using self-reported questionnaires from June 27 to July 8, 2005. Results: 1. As for exposure to Internet pornography, 61.0% of the respondents had been exposed to Internet pornography and 29.7% had their first exposure to Internet pornography when they were in the 3rd grade of middle school. In addition, 87.9% of the respondents spent less than 30 minutes each time to view Internet pornography. In 41.8% of the respondents, the reason for seeing Internet pornography was curiosity about sexuality. 2. Both the level of sexual knowledge (t=3.174, p=.002) and attitude (t=2.567, p=.011) were significantly different between the exposure group and the non-exposure group. 3. Grade, daily mean time to use computer, and sexual knowledge had statistically significant effects on exposure to Internet pornography. Conclusion: It is necessary to make repeated study to find other variables that affect students' exposure to Internet pornography and to develop education programs to enhance students' coping ability against Internet pornography. Also, parents' concern over youth is necessary to prevent them from being exposed to Internet pornography.

• International journal of advanced smart convergence
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• v.8 no.1
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• pp.44-57
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• 2019

Most banks in Korea have provided Internet banking services based on PKI(Public Key Infrastructure) certificates since the early 2000s when Internet banking began in Korea. To support PKI Internet banking, the Korean government backed the electronic signature law and supported the rapid spread of PKI-based Internet banking by regulating the application of PKI certificates to be compulsory in Internet banking until 2015. PKI Internet Banking in Korea has been developed as a pioneer in this field through many challenges and responses until its present success. Korea's PKI banking, which started with soft-token-based closed banking, has responded to various types of cyber attack attempts and promoted the transition to open banking by accepting various criticisms due to lack of compatibility with international standards. In order to improve the convenience and security of PKI Internet banking, various attempts have been made, such as biometric-integrated smartphone-based PKI authentication. In this paper, we primarily aim to share the experience and lessons of PKI banking by analyzing the evolution process of PKI Internet banking in Korea. It also has the purpose of presenting the challenges of Korea's PKI Internet banking and sharing its development vision.

• 제어로봇시스템학회:학술대회논문집
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• 2001.10a
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• pp.82.1-82
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• 2001

It is known that existence of irregular transmission time delay is a major bottleneck for application of advanced robot control schemes to internet telerobotic systems. In the internet teleoperation system, the irregular transmission time delay causes a critical problem, which is unstable and inaccurate. This paper suggests a practical internet teleoperation system with streaming buffer system, which consists of a buffer, a buffer manager, and a control timer. The proposed system converts the irregular transmission time delay to constant. So, the system effectively transmits the control input to a remote site to operate a robot stably and accurately. This feature enables short control input interval. That means the entire system has ...

• Journal of Korean Public Health Nursing
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• v.25 no.1
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• pp.118-128
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• 2011

Purpose: The purpose of this study was to investigate the patterns of internet usage, selfefficacy, and self-esteem of the elderly. Method: Study participants were 139 older than 60 years of age who had used internet and could access internet anytime at home. Data were collected from March to September, 2009 by using a structured questionnaire. The data were analyzed using PASW/WIN 18.0 program. Results: The meantime of internet use was 8.74 hours per week, frequently used web-site was 'Newspaper and magazine', and subjects mainly used internet 'not to fall behind the times'. The mean score of internet use capability was 2.42, among theses the score of 'Searching necessary information' was the highest. The internet use capability of the subjects was significantly different in terms of education level, spouse, economic status, and the length of use. The mean scores of self-efficacy and self-esteem were $28.22{\pm}4.42$ and $28.51{\pm}4.25$, respectively. Conclusions: These results suggest that the elderly people use internet not to fall behind the times but they have enough capability to use internet searching or e-mailing. Also, it is true that there are many influencing factors on internet use and capability of the elderly. Therefore, it is needed to investigate the internet use of the elderly more closely.