• International Journal of Internet, Broadcasting and Communication
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• v.16 no.2
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• pp.149-160
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• 2024

For examining Web3.0 video streaming (VS) platforms in terms of the decentralized technology, tokenization and decentralized autonomous organization (DAO), we look at four platforms like DLive, DTube, Livepeer, and Theta Network (Theta). As a result, DLive which firstly partnered with Medianova for CDN and with Theta for peer to peer (P2P) network and migrates to Tron blockchain (BC), receives no commission from what creators earn, gives rewards to viewers by measuring engagement, and incentivizes participation by allowing 20% of donation & fees for funding development, 5% to BitTorrent Token (BTT) stakeholders (among these 5%, 20% to partners, 80% to other BTT stakeholders). DTube on its own lower-layer BC, Avalon, offers InterPlanetary File System (IPFS), gives 90% of the created value to creators or curators, and try to empower the community. Livepeer on Ethereum BC offers decentralized CDN, P2P, gives Livepeer Token (LPT) as incentive for network participants, and delegators can stake their LPT to orchestrators doing good. Theta on its native BC pulls streams from peering caching nodes, creates P2P network, gives Theta utility token, TFUEL for caching or relay nodes contributors, and allows Theta governance token, THETA as staking token. We contribute to the categorization of Web3.0 VS platforms: DLive and DTube reduce the risk of platform censorship, promote the diverse content, and allow the community to lead to more user-friendly environments. On the other hand, Livepeer and Theta provide new methods to stream content, but they have some differences. Whereas Livepeer focuses on the transcoding layer, Theta concentrates both on the video application layer and content delivery layer. It means, Theta tries to deliver value to all participants by enhancing network quality, reducing CDN cost, and rewarding users in utility tokens for the storage and bandwidth they provide.

• Journal of Korean Critical Care Nursing
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• v.13 no.3
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• pp.41-50
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• 2020

Purpose : This descriptive research study aimed to identify the factors influencing nursing students' empathy and gender role identity and their effect on communication competence. Methods : Participants were 183 senior nursing students who had completed a clinical practice and simulation-based practical training course. Using the IBM SPSS/WIN 21.0 program, general characteristics were analyzed using descriptive statistics, independent variables were compared with t-tests and 𝑥² tests, and influencing factors on each variable and communication underwent multiple linear regression analysis. Results : Communication competence showed significant correlations with empathy (r=.40, p<.001), gender role identity (r=.53, p<.001), major satisfaction (r=.18, p=.013), and peer relationships (r=.24, p<.001). When gender was entered as a covariate, empathy (t=4.41, p<.001) and gender role identity (t=6.97, p<.001) were identified as predictors affecting communication competence with 36% explanation power (R²=.36, p<.001). Conclusion : The findings of this study suggest that course subjects considering the gender identities of students should be developed through various programs to establish students' identity as nurses and improve their empathy and communication.

• Journal of Information Processing Systems
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• v.9 no.3
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• pp.489-498
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• 2013

In this paper, we propose a common simulation model that can be reused for different performance evaluations of networked virtual environments. To this end, we analyzed the common features of NVEs, in which multiple regions compose a shared space, and where a user has his/her own interest area. Communication architecture can be client-server or peer-server models. In usual simulations, users move around the world while the number of users varies with the system. Our model provides various simulation parameters to customize the region configuration and user movement pattern. Furthermore, our model introduces a way to mimic a lot of users in a minimal experiment environment. The proposed model is integrated with our network framework, which supports various scalability approaches. We specifically applied our model to the interest management and load distribution schemes to evaluate communication overhead. With the proposed simulation model, a new simulation can be easily designed in a large-scale environment.

• Annual Conference of KIPS
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• 2004.11a
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• pp.725-728
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• 2004

최근 들어 정보통신 분야의 기술이 급격히 발전함에 따라 컴퓨터 사용의 증가와 초고속통신망의 보급이 일반화 되면서 사회가 급속도록 진화하고 있다. 대부분의 사람들이 정보통신 가전제품을 소지하고 있으며 무선 통신 기술의 발전이 일상생활로 접어들면서 유비쿼터스 컴퓨팅 환경을 추구하려는 움직임이 본격화 되고 있다. 이렇듯 언제 어디서나 쾌적하고 편리하고 즐거운 삶을 위한 맞춤형 홈서비스를 제공하는 환경을 구성하기 위해 각 계층에서 노력중이다. 가전기기들 간에 통신은 기본이며 개개인이 가지고 있는 정보통신기기까지도 제어를 하는 홈네트워크의 발전을 기대하며 본 고에서는 기기 간 즉 peer간의 탐색, 통신 등의 제어를 위해 JXTA플랫폼을 이용한 화이트보드 채팅 프로그램을 구현하였다. 따라서 안으로 다가올 홈네트워킹 환경에서의 JXTA 기반 장치 간 서비스 및 제어와 애플리케이션 개발 시 여러 가지 응용방안을 모색 할 수 있다.

• Journal of Families and Better Life
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• v.13 no.2
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• pp.103-111
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• 1995

이 연구에서는 서울시내 국민학교 3, 4학년이 190명의 아동을 대상으로 부모의 온정 및 의사소통과 또래 환경에 대한 지각이 아동의 공평성 추론에 미치는 영향을 조사하였다. 질문지를 사용하였고 분석을 위하여 백분율 평균, 표준편차, 빈도분포, 최저값, 최소값, 일원 변량분석과 $Scheff\'{e}검증$, Cronbach의 a값을 사용하였다. 연구결과를 요약하면 다음과 같다. 즉 아동이 지각한 부모의 온정 및 의사소통과 또래 환경에 대한 지각이 아동의 공평성 추론에 별 다른 영향을 주지 않았다. 반면에 아동이 지각한 또래 환경 중 또래의 지지와 교환적 협동은 아동의 공평성 추론에 유의한 영향을 미치고 있다.

• Information and Communications Magazine
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• v.33 no.10
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• pp.17-23
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• 2016

본고에서는 저전력 단말이 infra 없이 device-to-device 로 주변 기기를 탐색하여 ad hoc으로 네트워크를 구성할 수 있는 피어 인지 통신용 (Peer Aware Communication: PAC) PHY와 MAC 개발을 목표로 하는 IEEE 802.15 Task Group 8의 표준화 동향을 소개하였다. IEEE 802.15 TG8은 2016년 6월 첫번째 Working Group Letter Ballot을 끝냈으며, RevCom 승인은 2017년 7월을 목표로 하고 있다.

• Proceedings of the IEEK Conference
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• summer
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• pp.321-324
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• 2004

A VPN is widely used in a communications environment which access is controlled to permit peer connections only within a defined community of interest. It is constructed through some form of partitioning of a common underlying communication medium, where this underlying communications medium provides services to the network on a non-exclusive basis. In this paper, we have analyzed a variety of architecture to implement Giga bps VPN system. The proposed architecture will satisfy the needs of clients who adopt Giga bps VPN system in the various environments.

• Journal of Korean Home Economics Education Association
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• v.25 no.3
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• pp.79-91
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• 2013

The purpose of this study was to investigate the relation among peer support, family strength and self-control. This subjects were the 438 high school students living in Gwangju. Data were analyzed with SPSS 18.0 program. The major findings were as follows; First, the high school students' peer support and family strength scores were higher than median(3.00). Also, long-term satisfaction pursuit scores were higher than median and the immediate satisfaction pursuit scores were lower than median. Second, peer support showed significant difference according to sex. Family strength showed partially significant difference according to standard of living and parents' education achievement. Self-controls showed significant difference according to sex and father's education achievement. Third, family strength and the self-control showed significant correlation. Forth, the high school students' self-control was influenced by role sharing and problem solving, communication and family bonding and fathers' education achievement. And the high school students' self-control was explained about 15% by these variables. In conclusion, the role of home is important. it is necessary to enhance the education of financial stability and to improve self-control in order to help the students enhance solidity among family and communicate affirmatively.

• The Journal of The Korea Institute of Intelligent Transport Systems
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• v.11 no.6
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• pp.95-102
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• 2012

In this paper, we propose a method that can construct efficiently a P2P overlay multicast network composed of many heterogeneous peers in communication bandwidth, processing power and a storage size by selecting a peer in a distributed fashion using an ant-colony theory that is one of the computational intelligence methods. The proposed method considers not only the capacity of a peer but also the number of children peers supported by the peer and the hop distance between a multicast source and the peer when selecting a parent peer of a newly joining node. Thus, an P2P multicast overlay network is constructed efficiently in that the distances between a multicast source and peers are maintained small. In addition, the proposed method works in a distributed fashion in that peers use their local information to find a parent node. Thus, compared to a centralized method where a centralized server maintains and controls the overlay construction process, the proposed method scales well. Through simulations, we show that, by making a few high capacity peers support a lot of low capacity peers, the proposed method can maintain the size of overlay network small even there are a few thousands of peers in the network.

• The Journal of Korean Academic Society of Nursing Education
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• v.9 no.1
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• pp.126-135
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• 2003

Purpose: The purposes of this study are as follows: Identifying the types of bullying; describing the relationship among social support, parent-adolescent communication and bullying types; identifying factors influencing the bullying. Method: 374 subjects were 5-6th grade students of two elementary schools in Daejeon. We collected the data from June 10 to October 29, 2002. The data were analyzed by using the frequency, ANOVA, pearson's correlation and stepwise multiple regression in the SPSS. Result: The 7 % of the subjects were found as bullies and another 23.8 % as victims, while 25.9 % were found as bully-victim group. The number of the victims in peer-support got less than in the normal or bully group. In the correlation analysis, the score of bullies, victims and bully-victim group were reversely-correlated with the social support. The score of victims was reversely-correlated with the mother-adolescent communication. In regression analysis, the social support influenced significant effects on both the bullies and victims. Conclusion: Findings indicated that the health professionals need to identify social support and parent-adolescent communication according to bullying types. Therefore, adequate approaches for the three independent groups of bullying are necessary.