• 컴퓨터교육학회논문지
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• 제16권5호
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• pp.17-29
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• 2013

청소년들에게 사이버불링은 심각한 위해 요소로 작용하고 있지만 사안의 심각성과 중요성에도 불구하고 학문적인 접근과 시도는 아직 초기 단계이다. 이에 따라 본 연구에서는 전국 초 중 고등학생 1,112명을 대상으로 설문조사를 실시하였다. 조사 결과 청소년들 사이에 인터넷 불링 가해경험은 유형별로 20.3%에서 39.0%, 피해경험은 11.0%에서 23.4%, 휴대전화 불링 가해경험은 15.9%에서 44.1%, 피해경험은 5.5%에서 21.8%인 것으로 나타났다. 사이버불링 가해 경험에 영향을 미치는 요인으로는 인터넷의 경우 성별, 학업스트레스, 인터넷 접근성, 익명성, 인터넷 이용시간 등인 것으로 조사되었다. 휴대전화의 경우에는 학교급별, 학업스트레스, 휴대이동성, 익명적 이용가능성, 휴대전화 이용시간 등이 휴대전화 불링에 영향을 미치는 것으로 나타났다. 마지막으로 인터넷 불링과 휴대전화 불링과의 관계를 살펴본 결과 인터넷 불링 가 피해 경험과 휴대전화 불링 가 피해 경험은 서로 관련이 있는 것으로 나타났으며, 특히 인터넷 불링 가해경험과 휴대전화 불링 가해경험, 인터넷 불링 피해경험과 휴대전화 불링 피해경험은 상당한 관련이 있는 것으로 조사되었다.

• 한국인터넷방송통신학회논문지
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• 제10권4호
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• pp.1-5
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• 2010

오늘날 유비쿼터스 환경에서 전력망이나 이와 유사한 시스템의 실시간 원격 제어 및 모니터링 기술은 다양한 센서나 카메라를 통하여 획득한 정보를 시간과 지역에 구애됨이 없이 인터넷이나 이와 유사한 시스템을 통하여 공유할 수 있는 서비스를 제공한다. 본 논문에서는 인터넷 관리 시스템인 IMS(Internet Management System)을 이용한 시스템 성능평가 및 유지보수를 위한 태양광 발전시스템의 원격 실시간 감시 제어 방법을 소개하고, IMS를 물관리 시스템에 적용하여 실용적 가치를 검증하였다. 또한 실시간 데이터 전송 방식으로 위치에 상관없이 웹 브라우저를 통한 원격 제어가 가능하도록 설계하였다.

• 지역사회간호학회지
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• 제18권3호
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• pp.460-468
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• 2007

Purpose: The purpose of this study was to investigate the relation between adolescents' internet addiction and mental health. Methods: The Internet addiction level was measured with K-Scale developed for Korean adolescents by Korea Agency Digital Opportunity & Promotion (2006) and the mental health level was measured with SCL-90-R developed by Derogatis (1977) and adapted for Korean adolescents by Kim, Kim. & Won (1984). Collected data was analyzed by the mean${\pm}$SD, t-test, ANOVA, Scheffe and Pearson correlation coefficient (SPSS 12.0) Results: 1. The Internet addiction level appeared to be 'Addiction' in 19%, 'Latency addiction' in 27% and 'Normal' in 54%. 2. The Internet addiction level was different according to sex, use, frequency and using time per day. The mental health level was different according to grade, sex, the father's education, the mother's education, frequency and using time per day. 3. The correlation between Internet addiction and mental health was found significant. Conclusion: The Internet addiction level was confirmed to have an influence on mental health. We offered basis data for preventing and treating Internet addiction in adolescents.

• Journal of Korean Biological Nursing Science
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• 제16권2호
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• pp.80-89
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• 2014

Purpose: The purpose of this study was to investigate relationships between short sleep, obesity, and screen time. Methods: Data were obtained from a survey using a sample of 1,166 academic, and 597 vocational high school students. A structured questionnaire was used to assess demographics, hours spent in sleep, TV viewing, internet usage, and game playing. Obesity was determined using the body mass index. Descriptive statistics, Cochran Mantel Haenszel Chi-square test, and multiple logistic regression with dummy variables were performed. Results: Short sleep (<8 hours/day) was significantly related to obesity, not in academic school students, but in vocational school students. Academic high school students who had enough sleep (${\geq}8$ hours/day), had more time spent on TV viewing, internet usage, and game playing. Similar results were found in vocational high school students except for internet use. Interestingly, students with better school performance spent significantly less time in TV viewing, internet usage, and game playing, and therefore had a lower risk of obesity in academic school students. Conclusion: There is a significant relationship between short sleep and obesity that was found only in vocational high school students. The relationship between short sleep and screen time was not significant in Korean high school students.

• 한국정밀공학회:학술대회논문집
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• 한국정밀공학회 2000년도 춘계학술대회 논문집
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• pp.952-955
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• 2000

Nowadays, Internet is so popular that we can easily access the remote site to search information and to communicate remote site and users. People who want to make a collaborate working environment can use JAVA, CORBA, and other internet programming tools like a Perl/XML. The mechanist are try to make the environment fur collaboration within design/manufacturing, simulation, remote sensing through TCP/IP And many industries and research institutions are working towards the agile manufacturing. This paper describes an internet-based real-Time remote monitoring system. The system consists of a hardware setup and a software interface. The hardware setup consists of a machine and its data acquisition hardware, while the software interface incorporates the data acquisition software, the server program, and the client program. The server program acts as the main interface between the data acquisition system and the internet technology. The client program is to be distributed to the remote users who want to monitor the machining status. The system has been demonstrated and verified for an industrial High-Speed Machine (HSM) especially measuring cutting force and acoustic emission. To share the signal, we make the WWW server and display its value. The system has been found to be highly efficient, reliable and accurate.

• 인터넷정보학회논문지
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• 제9권6호
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• pp.73-79
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• 2008

현재 전세계에서는 다양한 인증기법을 통해 인터넷 뱅킹을 하고 있다. 특히 강한 사용자 인증 기법으로 OTP(One Time Password)기반의 멀티팩터 인증기법을 사용하고 있으나 정교한 공격에 여전히 취약하다 본 논문은 인터넷 뱅킹 트랜잭션에 부인방지 및 MITB(Man In the Browser Attack)에 대응할 수 있는 서명 기반 프로토콜을 제안하고 있다. 본 프로토콜은 PKI 기반 인증서 및 OTP의 장점을 결합함으로서 정교한 공격에 대응할 수 있는 주요 기능을 제시하고 있으며, 이는 다양한 형태로 현실에 응용될 수 있을 것이다.

• ETRI Journal
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• 제44권1호
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• pp.135-146
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• 2022

The importance of big data analytics has become apparent with the increasing volume of data on the Internet. The amount of data will increase even more with the widespread use of Internet of Things (IoT). One of the most important application areas of the IoT is healthcare. This study introduces new real-time data analytics architecture for an IoT-based smart healthcare system, which consists of a wireless sensor network and a radio-frequency identification technology in a vertical domain. The proposed platform also includes high-performance data analytics tools, such as Kafka, Spark, MongoDB, and NodeJS, in a horizontal domain. To investigate the performance of the system developed, a diagnosis of Wolff-Parkinson-White syndrome by logistic regression is discussed. The results show that the proposed IoT data analytics system can successfully process health data in real-time with an accuracy rate of 95% and it can handle large volumes of data. The developed system also communicates with a riverbed modeler using Transmission Control Protocol (TCP) to model any IoT-enabling technology. Therefore, the proposed architecture can be used as a time-saving experimental environment for any IoT-based system.

• International Journal of Internet, Broadcasting and Communication
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• 제15권2호
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• pp.31-38
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• 2023

This paper introduces a real-time face swapping system that enables video influencers to swap their faces with arbitrary generated face images of their choice. The system is implemented as a Django-based server that uses a REST request to communicate with the generative model,specifically the pretrained stable diffusion model. Once generated, the generated image is displayed on the front page so that the influencer can decide whether to use the generated face or not, by clicking on the accept button on the front page. If they choose to use it, both their face and the generated face are sent to the landmark extraction module to extract the landmarks, which are then used to swap the faces. To minimize the fluctuation of landmarks over time that can cause instability or jitter in the output, a temporal filtering step is added. Furthermore, to increase the processing speed the system works on a reduced set of the extracted landmarks.

• 대한전기학회:학술대회논문집
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• 대한전기학회 2002년도 하계학술대회 논문집 D
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• pp.2376-2378
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• 2002

Redundant Programmable Logic Controllers are used in practice with the aim of achieving higher degree of availability or fault tolerance. In the paper a proposed Multiplex-PC is controled for fault tolerance design. In order to select a Different-Vender by a Supervisor computer, a Multiplex-PC is designed by TCP/IP internet protocol[1]. Because TCP/IP internet protocol can not connect to CPU. We use TCP/IP internet protocol to join CPU. We have to use TCP congestion control to select Different-Vender [4]. The reliability of the fault tolerant is measured with MTBF(Mean Time Between Failures)[3].

• ETRI Journal
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• 제37권4호
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• pp.657-666
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• 2015

We propose a two-stage resource allocation algorithm for the high link utilization of an orthogonal frequency-division multiplexing passive optical network (OFDM-PON). An OFDM-PON is assumed to use a synchronous frame structure in supporting service differentiation. In distributing resources, the proposed algorithm first allocates a time window for each optical network unit (ONU), and then it arranges a subchannel, which is a group of subcarriers. This algorithm needs to satisfy two constraints. First, computations for the resource allocation should be done using a frame unit. Second, an ONU has to use a single subchannel to send upstream data for multiple services within a frame duration. We show through a computer simulation that the proposed algorithm improves the link utilization.