• International Journal of Internet, Broadcasting and Communication
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• v.4 no.1
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• pp.3-7
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• 2012

Traditionally SCADA is connected only in a limited private network. With new technology and facilities, there are also demands of connecting SCADA though the internet. The internet SCADA facility has brought a lot of advantages in terms of control, data viewing and generation. Aside from connecting SCADA to the internet, there are also operators who want to connect their system wirelessly. This can save budget for communication lines. Along with the advantages it brings, are security issues regarding wireless internet SCADA. In this paper, we discuss internet SCADA, its connection through wireless communication and the security issues surrounding it. To answer the security issues, a symmetric-key encryption for internet SCADA is proposed.

• Korean Journal of Culture and Social Issue
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• v.19 no.2
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• pp.259-283
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• 2013

It seems that Internet based communication has been settled down in everyday life. Internet based communication studies also have been done and they proposed that internet based communication modal differs from other communications modal. One of the major themes about internet based communication was the effect of internet based communication on relationships. Early studies suggested that internet has negative effect on life and relationships, although it has positive effect on economics and information distribution. Because there is relative anonymity, People and Researchers thought that people easily could be exposed to negative situations like pornography, instant relationship, negative reply and soon. However,Recently there have been on going un-solving arguments about effect of internet based communication.From the negative perspective, Internet based communication is negative to relationship, because internet based communication could displace face to fact communication and old off-line relationships. However, from the positive perspective, researchers focused on the motivation and purpose of internet users. In this paradigm, people could expand their life and relationships using internet because internet could remove the various restrictions for relationship. Moreover they also suggested that people could enlarge their relationships because they could easily disclose theirselves in anonymity. However, No conclusion has been drawn yet and there needs some organization of two standpoints. Accordingly, This study is integrating the two perspectives and proposing future direction of internet based communication and relationship.

• Journal of the Korean Home Economics Association
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• v.43 no.10 s.212
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• pp.103-114
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• 2005

This study analyzed the effect of parent-child communication and peer relationship on children's internet addiction. The subjects were 642 elementary school students living in Daejeon city. Cronbach's $\alpha$, t-test, ANOVA, and Duncan's test were employed in analyzing the data by using SPSS 10.0. The findings of this study were as follows First, the boys were more addicted to internet use than the girls, as were the children of less educated parents. The children of parents with professional careers were less addicted to the internet. The children who perceived their school achievements as low were more addicted to the internet. Second, the children who spent more time daily, longer time at once and more frequently per weekly internet use were more addicted. Third, internet addiction was influenced tv parent-child communication and peer relationship. Boys who had more problem communications with their parents less open communication with their mother and a lower level of peer support were more addicted to the internet. The problem of communication with their mother and conflict in their peer relationship had more influence on the internet addiction of girls.

• Journal of the Korean Academy of Child and Adolescent Psychiatry
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• v.17 no.2
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• pp.141-148
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• 2006

Objectives : Internet became essential component in these days. This study primarily tried to find out the characteristics of high risk internet users through using the communication scale. Methods : We investigated levels of internet addiction using Internet Addiction Scale in 1,193 high school and middle school students. Participants were divided into 3 groups (high risk user group, potential risk user group, normal user group) according to the results from internet addiction scale. We additionally surveyed characteristics of internet use, and patterns of communication and Communication Scale based on Satir theory in 614 from 1,193 participants. Results : Boys showed higher tendencies for internet addiction than girls in internet addiction scale. There were significant differences in mean computer using time especially during weekends among 3 internet user groups. The distribution of communication types in each internet user group was similar and this finding coincided with previous study results. However high risk user group showed higher scores in each inadequate communication pattern such as placating, blaming, super-reasonable and irrelevant stance. Conclusion : These results suggest that adolescents who use internet in addictive patterns may have more problematic communication styles and these may be associated with poor interpersonal relationships.

• Proceedings of the Korean Society of Computer Information Conference
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• 2016.07a
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• pp.233-234
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• 2016

본 프로젝트는 편안하고 안전하게 세상과 소통하고 관심사를 공유할 수 있는 커뮤니티 사이트이다. 게시글에 수명을 설정하여 자동으로 글이 삭제되는 기능을 통해 사용자의 보안성을 향상시키며, 기본적으로 닉네임을 사용하여 안전한 익명성을 보장한다. 즉, 자동으로 게시글이 삭제되는 커뮤니티 웹 사이트로 사용자들의 일상, 관심사, 정보 공유 등을 게시글을 통해 공유하고 소통할 수 있고, 커뮤니티 활동에 따라 마일리지를 누적하여 게시글의 기본 수명을 연장 할 수도 있다.

• Proceedings of the Korean Society of Computer Information Conference
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• 2018.07a
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• pp.295-296
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• 2018

본 논문은 입 출차를 하는 주차타워의 원리를 바탕으로 NFC를 활용하여 신발을 반 출입하고, IoT 센서를 이용하여 신발의 관리를 편리하게 도와주는 자동 신발타워이다. 수동으로 번호를 입력하던 주차타워와는 다르게 제안한 신발타워는 NFC에 있는 고유ID값을 활용하여 인증된 사용자가 신발장의 센서 터치로 본인의 신발을 반 출입하도록 한다. 신발장 관리 시스템은 신발의 임의적인 반출을 가능하게 하며, IoT센서를 탑재하여 신발장 내부에 향균, 건조, 온도 조절 등의 효과를 탑재하여 신발의 관리를 편리하게 도와주는 기능들을 제공한다.

• Proceedings of the Korean Society of Computer Information Conference
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• 2015.07a
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• pp.155-156
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• 2015

대중화된 소셜 네트워크 환경에서 사용자가 제작한 콘텐츠를 빠르고 간편하게 공유할 수 있도록 하는 모바일 App을 개발하였다. 기존 사용자 영상 콘텐츠 제작 환경에서는 필요 이상의 소음과 잡음이 혼재하여 영상에서 풍기는 이미지의 감동을 저해하고 있다. 이러한 주의의 소음과 잡음으로부터 영상을 보호하도록 배경음악을 영상과 함께 재생하여 영상의 감동과 느낌을 사용자에게 전달하기 위한 App이다. 또한 소셜 네트워크 환경에 간편하게 업로드 할 수 있도록 페이스북을 통해 다른 사용자와 빠른 공유를 할 수 있다.

• Journal of Digital Convergence
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• v.6 no.3
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• pp.93-107
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• 2008

The aim of this study was to draw some suggestions for Internet Policy by using empirical analyses of key factors in Internet addiction in youths. Internet addiction in youths is perceived as a current and significant issue throughout the world. For the purpose of this study, factors that have influence on the Internet addiction of the youth have been explored and analysed empirically of its hypothetical relationships by using the SEM(structural equation modelling). As a result, a few key factors that suggest a strong relationship to Internet addiction in youths have been drawn: subjects' personality, accessibility to the Internet, psychology and communication factor. Particularly accessibility to the Internet, and specifically the duration of time spent online causes the phenomenon of the Internet addiction. This study shows, however, the subjects' personality and communication factor have the most significant causal relationship to Internet addiction. In other word, the Internet addiction has been changing with the various factors including the factors drawn in this study, which are subjects' personality, accessibility to the Internet, psychology and communication factor. Therefore, Internet addiction should not be merely treated as the isolated problem of the Internet itself; rather it should be understood as various dimensions of society, economy, culture etc. Furthermore, some alternatives to deal with the Internet addiction should be found in various approaches.

• KSII Transactions on Internet and Information Systems (TIIS)
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• v.14 no.4
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• pp.1502-1519
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• 2020

Recently, new devices have been developed for the Internet of Things concept. The devices commonly use RF (Radio Frequency) based wireless communication. With the increase in the number of devices, the space allocated for the radio frequency band in wireless communication fills rapidly. Visible Light Communication (VLC) is an alternative, secure and economical communication technology that uses light instead of radio frequencies. While Web of Things (WoT) is the adaptation of the experience and knowledge acquired from the web into the internet of things ecosystems. By combining these two technologies, the development of the Visible Light Communication for Web of Things (VLC4WoT) system, which can use VLC and WoT technologies, has been our motivation. In our study, microcontroller control circuit was created for VLC4WoT system. Control of the circuits over the internet was performed. VLC based receiver and transmitter units have been developed for wireless communication. Web based interface was created for control. The test apparatus consisting of four objects with four outputs and a transfer unit was carried out. In this test, communication was achieved successfully. It was presented in the study that VLC can be used in the web of things architecture. In the future, it is envisaged to use this system as a safe and economical system in indoor environments.

• The Journal of Korean Academic Society of Nursing Education
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• v.4 no.1
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• pp.7-14
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• 1998

The use and need of health and nutrition information on the PC communication and internet among university students at Chungbuk area were investigated. The data from 167 students from two different universities were collected and analyzed from March to May, 1998. The results are as follows. 1. Male students were 27.5% and female students were 72.5%. 2. Sixty percent and 74.7% of the students had ever used PC communication and internet, respectively. Higher proportions of male students had experiences in PC communication and internet use than fe male students. The main reasons to use PC communication and internet were 1)to obtain information and knowledge(67.4%) 2)to enjoy(10.5%), 3)to make friends or to talk(5.3%) 3. About 40% of the experienced students of the PC communication of internet obtained health or nutrition information. However, only 25% of the experienced students obtained the nutrition information from the internet. Only 10% of the students agreed that the information from the PC communication and internet was very useful. The reasons not to use the information from the PC communication and internet were 'lack of expertise of the information' and 'long response time'. Many students thought that the information provided through the computer should be improved in terms of variety and applicability to the real situation. 4. Among the 33 topics of the health and nutrition information given on the questionnaire, both male and female students had the greatest interest in stress management. The next topics in which female students had interests were diet for weight control, health problems related to menstration, dietary assessment, and cancer prevention. In male students, dietary assessment, infant nutrition management, hypertention diet were the main interests. On the basis of these results an information system on health and nutrition management during the lifecycle for Korean women will be constructed on the internet.