• Structural Engineering and Mechanics
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• v.25 no.6
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• pp.767-770
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• 2007

• Journal of the Korea Convergence Society
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• v.6 no.4
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• pp.41-46
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• 2015

Utilization of IS is increasing in businesses: many organizations have established information systems(IS) and are using it as a means to innovate and communicate their businesses. But the expansion of IS utilization lead to the negative influence of ICT-induced stress on information system users. This study suggests IS utilization ability, IS self-efficacy, and pace of change as precedence factors of ICT-induced stress, and explains that ICT-induced stress influences Employee Productivity. The result shows self-efficacy and Pace of Change had significant effects on ICT-induced Stress. Also it had negative effects on Employee Productivity. In conclusion the study proposed that information system users' Performance decreases by ICT-induced stress.

• The Journal of the Korea Contents Association
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• v.15 no.4
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• pp.479-489
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• 2015

The paradigm of communication is changing by the generalization of mobile computers and the extension of network service. In the mobile messenger communication, people are increasingly using character emoticons to substitute linear text. This means that the character emoticons are functioning as narrative characters so that they are becoming the nonlinear techno-code, which can substitute for the alphabet code. As Vil$\acute{e}$m Flusser said, the post-modern communication is arrived. In this kind of communication, storytelling with character emoticons are effective enough to tell various stories. In this point of view, this paper tries to prove the functions of character emoticons and suggests the classification of the character emoticon series. This paper also structures the post-modern communication model as a new paradigm of visual communication.

• Journal of Digital Convergence
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• v.13 no.1
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• pp.37-47
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• 2015

What follows in this research is the examination of the consumer motives that lead to the usage of smartphones, how the consumers can be categorized by such motives, and how each category of consumers behave differently when using their smartphones. The finding of this research is as follows. First, the result of factor analysis showed that there are four underlying dimensions in consumers. Second, The result showed that consumer can be categorized into three different types, "Other conscious consumers", "Consumers with no specific motives", and "Function pursuing consumers". Third, multi-regression analyses were performed to identify variables that impacted consumers' satisfaction and technostress in the use of smartphone consumers.

• Journal of Korea Technology Innovation Society
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• v.20 no.4
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• pp.970-988
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• 2017

As an innovation cluster has become an important policy tool for attaining regional and national competitiveness, many nations and regions are making great efforts to foster innovation clusters. In the case of Korea also, many innovation clusters have been established and some of them are recently receiving a lot of attention due to their performance. In fact, there have been lots of investment by the central and regional governments. However, there have been no in-depth analyses on Korean successful innovation clusters. This study investigates some of the success factors of a Korean representative innovation cluster, Pangyo Techo Valley. We find out that the Pangyo Techno Valley has four groups of success factors: innovative environment, consistent policy support by regional government, knowledge networks, and good feed-back system of innovation. Our findings would have some theoretical and practical implications for innovation cluster research and policy practice.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.13 no.8
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• pp.3477-3485
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• 2012

This research focused on the cluster analysis for the vitalization of the innovation cluster, Gwanggyo Technovalley. The study was performed based on both theoretical study and quantitative and qualitative study approaches. Particularly, questionnaire survey was performed for the cluster analysis of the innovation cluster. The major determinants for vitalization of the innovation cluster, Gwanggyo Technovalley can be summarized as follows; the strategy formulation for the development of the innovation cluster, the enhancement of the host institution capability and gradual enlargement of the role of the host institution. In terms of the needs of times, this study regarding the cluster analysis for the vitalization of the innovation cluster, Gwanggyo Technovalley is anticipated to be a good reference for the R&D organizations and technology cluster participants in coming years.

• Journal of Practical Engineering Education
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• v.13 no.2
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• pp.393-403
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• 2021

The purpose of this study is to propose a method of designing a systematic panel survey at the institutional level to lay the foundation for data-based decision-making using vocational training teachers and instructors as the population. In this study, the target population and sampling frame, which are the main elements necessary for planning a panel survey, are proposed. Also based on expert advice and empirical data analysis, the sampling unit and sampling method taking into account the outer and inner variables are presented, comprehensively considering the representativeness of data, the efficiency and sustainability of data collection. As a result of the study, with the unit of the panel as a vocational training institution, a two-stage stratified proportional sampling plan is proposed so that the institution selected as the panel and the vocational training teachers and instructors belonging to the institution can participate in the survey. Based on this, implications for the panel survey sample design are presented.

• Journal of the Korea Convergence Society
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• v.12 no.3
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• pp.261-272
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• 2021

With diffusion of Smart Work, a problem has been raised that Smart Work makes the boundary between work and nonwork blur, and may cause technostress. In order to find out whether Smart work copes with techno-invasion stress in work domain, we need to understand the precedence factors influencing on job satisfaction and the role of boundary management strategy which Smart Workers actively choose. This paper developed a research model containing a causal relationship among four factors, nonwork-to-work interference, job autonomy, job commitment, and job satisfaction, and the moderation effect of boundary management strategy. The findings show that overall hypotheses were accepted based on the pooled data, but three hypotheses test on job satisfaction by boundary management strategy type differed. These results suggest that in accordance with the boundary management strategy of Smart Work users, different change management need to be prepared.

• Journal of Digital Convergence
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• v.18 no.12
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• pp.105-115
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• 2020

The purpose of this study is to investigate the factors influencing the innovation resistance of cloud computing services and to suggest policy alternatives to increase the use of domestic cloud computing services. For this, a survey was conducted on 178 SMEs that introduced cloud computing services with government support. As a result, technostress, CEO informatization leadership and organizational structure concentration had a significant influence on innovation resistance. Therefore, in the future, first, it is necessary to provide user-centered cloud computing services in the direction of reducing technostress. Second, it is necessary to apply cloud computing services through a deeper understanding of the organizational characteristics of each small and medium enterprise. Third, there is a need for advanced security authentication and a compensation system. In order to promote the use of cloud computing services, an environment in which users can safely use should be prepared first.

• The Korea Journal of Herbology
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• v.34 no.1
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• pp.67-74
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• 2019

Objectives : Alcohol hangover is a common phenomenon which basically occurs after heavy drinking. Moreover, heavy alcohol consumption leads to acute and chronic diseases. We investigated the effect of herbal mixture (SJ) on alcohol metabolism in serum or/and liver. Methods : 5W-old Sprague Dawley rats were used for the study. To overnight fasted rats, 0.9% saline or SJ extract was administrated per os before alcohol treatment. Then, 40% alcohol was orally administrated to all rats in 30 mins. Ethanol, acetaldehyde concentrations, alcohol dehydrogenase (ADH), acetaldehyde dehydrogenase (ALDH) activities were measured by assay kits. Aspartate aminotransferase (AST) and alanine transaminase (ALT) were measured by analyzer. Results : Ethanol and acetaldehyde concentrations lowered in SJ groups compared with CON group. Especially, acetaldehyde concentration significantly decreased in SJ groups compared with CON group. AST and ALT levels tended to increase in SJ groups compared with CON group but there was no significant difference between CON group and SJ groups. ADH activity in serum was higher in SJ groups than CON group but no significant difference in liver. ALDH activity in both serum and liver showed significantly increased in SJ groups compared with CON group. Conclusions : Treatment of SJ extract showed not only reducing concentration of alcohol and acetaldehyde but also increasing activities of ADH and ALDH. These results suggest SJ may influence in alcohol metabolism via control of metabolic enzyme activities and metabolite. Therefore, SJ, herbal mixture, might have a function of preventing hangover after drinking alcohol.