• 조명전기설비학회논문지
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• 제30권1호
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• pp.38-43
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• 2016

Recent social needs for promoting traffic safety increased and the demand social security in economic, increasing the demand for environmentally friendly rail transport. In particular, when train express such as to secure reliability KTX(Korea Train eXpress) from potential disaster(fire) in the train operation caused by the train express running has been very important. Railroad fire extinguishing system is operated to fire exploding before reaching the flashing point more important than early to quickly detect because of CAN(Controller Area Network) communication to fire suppression and fire receiver, interface, fire fighting equipment from HMI((Human Machine Interface) and fire high-performance to research and development for intelligent composite fire receiver is required.

• International Journal of Computer Science & Network Security
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• 제21권12spc호
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• pp.491-494
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• 2021

The article clarifies the definition and components of the ICT competence of future teachers, justifies the introduction of a motivational-value component. ICT competence of future teachers has a four-component structure: motivational-value, general-use, general pedagogical, subject-pedagogical components. The levels (reproductive, productive, creative), criteria and indicators of the formation of ICT-competence of students of a pedagogical college are determined, the content of these levels (reproductive, productive, creative) is disclosed, respectively.

• Journal of information and communication convergence engineering
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• 제19권2호
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• pp.84-92
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• 2021

The research on waste power batteries in China in the past ten years reveals that the power battery recycling industry is enormous but marred with several challenges. A study of China's current power battery closed-loop supply chain revealed some issues in the power battery recycling industry, such as imperfect supply chain, small recycling scale, asymmetric information, and imperfect profit distribution mechanism. This paper uses the theory of corporate social responsibility and consumer choice to propose a closed-loop network of power batteries based on block chain technology and analyzes the existing closed-loop supply chain of power batteries. Consequently, this study provides a new idea for developing the power battery closed-loop supply chain by proposing the closed-loop network of power batteries based on blockchain technology.

• Asia pacific journal of information systems
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• 제22권2호
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• pp.39-69
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• 2012

With the advent of communication technologies including electronic collaborative tools and conferencing systems provided over the Internet, virtual collaboration is becoming increasingly common in organizations. Virtual collaboration refers to an environment in which the people working together are interdependent in their tasks, share responsibility for outcomes, are geographically dispersed, and rely on mediated rather than face-to face, communication to produce an outcome. Research suggests that new sets of individual skill, knowledge, and ability (SKAs) are required to perform effectively in today's virtualized workplace, which is labeled as individual virtual competence. It is also argued that use of online social networking sites may influence not only individuals' daily lives but also their capability to manage their work-related relationships in organizations, which in turn leads to better performance. The existing research regarding (1) the relationship between virtual competence and task performance and (2) the relationship between online networking and task performance has been conducted based on different theoretical perspectives so that little is known about how online social networking and virtual competence interplay to predict individuals' task performance. To fill this gap, this study raises the following research questions: (1) What is the individual virtual competence required for better adjustment to the virtual collaboration environment? (2) How does online networking via diverse social network service sites influence individuals' task performance in organizations? (3) How do the joint effects of individual virtual competence and online networking influence task performance? To address these research questions, we first draw on the prior literature and derive four dimensions of individual virtual competence that are related with an individual's self-concept, knowledge and ability. Computer self-efficacy is defined as the extent to which an individual beliefs in his or her ability to use computer technology broadly. Remotework self-efficacy is defined as the extent to which an individual beliefs in his or her ability to work and perform joint tasks with others in virtual settings. Virtual media skill is defined as the degree of confidence of individuals to function in their work role without face-to-face interactions. Virtual social skill is an individual's skill level in using technologies to communicate in virtual settings to their full potential. It should be noted that the concept of virtual social skill is different from the self-efficacy and captures an individual's cognition-based ability to build social relationships with others in virtual settings. Next, we discuss how online networking influences both individual virtual competence and task performance based on the social network theory and the social learning theory. We argue that online networking may enhance individuals' capability in expanding their social networks with low costs. We also argue that online networking may enable individuals to learn the necessary skills regarding how they use technological functions, communicate with others, and share information and make social relations using the technical functions provided by electronic media, consequently increasing individual virtual competence. To examine the relationships among online networking, virtual competence, and task performance, we developed research models (the mediation, interaction, and additive models, respectively) by integrating the social network theory and the social learning theory. Using data from 112 employees of a virtualized company, we tested the proposed research models. The results of analysis partly support the mediation model in that online social networking positively influences individuals' computer self-efficacy, virtual social skill, and virtual media skill, which are key predictors of individuals' task performance. Furthermore, the results of the analysis partly support the interaction model in that the level of remotework self-efficacy moderates the relationship between online social networking and task performance. The results paint a picture of people adjusting to virtual collaboration that constrains and enables their task performance. This study contributes to research and practice. First, we suggest a shift of research focus to the individual level when examining virtual phenomena and theorize that online social networking can enhance individual virtual competence in some aspects. Second, we replicate and advance the prior competence literature by linking each component of virtual competence and objective task performance. The results of this study provide useful insights into how human resource responsibilities assess employees' weakness and strength when they organize virtualized groups or projects. Furthermore, it provides managers with insights into the kinds of development or training programs that they can engage in with their employees to advance their ability to undertake virtual work.

• International Journal of Internet, Broadcasting and Communication
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• 제12권4호
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• pp.204-211
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• 2020

The era of the 4th industrial revolution is a complex environment in which the cyber world and the physical world are integrated and interacted. In order to successfully implement and be sustainable the 4th industrial revolution of hyper-connectivity, hyper-convergence, and hyper-intelligence, not only the technological aspects that implemented digitalization but also the social aspects must be recognized and dealt with as important. There are socio-technical systems and socio-technical systems theory as concepts that describe systems involving complex interactions between the environmental aspects of human, mechanical and tissue systems. This study confirmed how the Socio-technical System was applied in the research literature for the last 10 years through machine learning-based analysis. Eight clusters were derived by performing co-occurrence keywords network analysis, and 13 research topics were derived and analyzed by performing a structural topic model. This study provides consensus and insight on the social and technological perspectives necessary for the sustainability of the 4th industrial revolution.

• 한국컴퓨터정보학회:학술대회논문집
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• 한국컴퓨터정보학회 2015년도 제51차 동계학술대회논문집 23권1호
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• pp.285-287
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• 2015

최근 직장인들이 직장생활을 효과적으로 하기 위한 인맥의 필요성이 높아지는 가운데 소셜 네트워크의 중요성이 큰 이슈로 떠오르고 있다. 이는 현재 직장인들이 온라인뿐만 아니라 오프라인에서도 소셜 네트워크 활동이 활발히 이루어지고 있기 때문이다. 소셜 네트워크를 통하여 지속적인 연락을 취함으로써, 두터워진 좋은 인맥은 자기에게 결정적으로 필요할 때 도움을 주기 때문에 직장인들 사이에서 소셜 네트워크 활동이 중요해 지고 있다. 소셜 네트워크는 고객을 대상으로 하는 영업사원들에게는 실적으로 바로 연계된다고 할 수 있다. 따라서 본 논문에서는 영업사원이 애플리케이션을 이용해 고객을 효율적이고 능률적인 고객을 관리할 수 있도록 한다. 추가적으로 원하는 고객을 따로 관리할 수 있는 기능과 고객 정보 동기화 기능이 있는 애플리케이션을 설계 및 구현하였다.

• International Journal of Contents
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• 제8권3호
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• pp.7-11
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• 2012

This study examines A-list users in the Twitter network of National Assembly members in South Korea. An examination of some socio-geographic characteristics of these A-list users indicates that the distribution of these users in terms of their geographic location and social status can be understood in the context of the Korean social structure. In addition, an examination of Tweets posted by these users shows that half of these users had negative attitudes toward the current administration and that some Tweets contained emotional terms.

• 디지털산업정보학회논문지
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• 제9권1호
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• pp.177-188
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• 2013

As the number of smart phone users increases, many organizations begin to adopt social media rapidly to diversify communication channels with customers. Specifically, micro-blog, which supports instant and two-way communications between users and between organizations and users, has been adopted by many organizations as an efficient way not only to identify new customers but also to retain existing customers. The purpose of this study is to investigate the usage motivation and satisfaction of enterprise twitter based on use and gratifications perspectives comparing with Korea and China. Based on prior studies on use and gratifications of internet-related media, information seeking, pleasure/entertainment, relationship, communication, and incentives were identified as usage motivations of enterprise Micro-blog. This study contributes to provide the base of activation strategies and practical implications for micro-blog as a marketing tool.

• KSII Transactions on Internet and Information Systems (TIIS)
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• 제9권10호
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• pp.4143-4159
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• 2015

We-the-media (aka wedia) is a concept where the users of social networking sites, such as Facebook, turn into the broadcasters. This study used the popular application Bitstrips as the experiment tool. Facebook was used as the Wedia platform for publishing designed comics, then used the three elements of Goffman's dramaturgy model-role, scene and dialog-to analyze 265 comics created by 3 researchers and observe the audience's responses within 9 months. The results showed that people want to see a good story with positive dialogue, and prefer scene is school more than work. As all these elements are controllable, Wedia communication has the potential for more applications. We also found that including the elements of news, gambling and gift-giving tended to trigger greater response. Furthermore, We suggesting that such embedding of product information in web episodes (webisodes) with caricature could be a successful marketing strategy.

• 한국통신학회논문지
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• 제36권8B호
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• pp.962-970
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• 2011

본 논문은 차세대 통합 커뮤니케이션 서비스 시스템에 대하여 기술한다. 차세대 통합 커뮤니케이션은 기업 내 직원들의 의사 소통 및 정보 공유를 위하여 전화, SMS(Short Message Service), 이메일, 채팅과 같은 기본 통신 수단에 소셜 네트워킹 서비스를 새로운 통신 수단으로 결합하여, 하나의 통합된 인터페이스에서 제공하는 서비스를 의미한다. 본 논문의 차세대 통합 커뮤니케이션 시스템은 차세대 UC(Unified Communications) 응용서비스, 개방형 UC 서비스 플랫폼, UC 백엔드 서버로 구성된다. 응용서비스는 웹 응용과 스마트폰에 탑재되는 모바일 응용으로 구성된다. 개방형 UC 서비스 플랫폼은 UC 응용서비스가 아닌 써드 파티 응용서비스에게 기업 내의 기본 및 소셜 네트워킹 서비스에 접근할 수 있는 개방형 서비스 컴포넌트를 제공한다. 백엔드 서버는 기업내의 전화, SMS, 이메일, 채팅을 위한 서버 기능을 제공한다.