• The Journal of Information Systems
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• v.24 no.2
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• pp.209-240
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• 2015

Purpose This study investigates the relationships between various attributes of smart banking (convenience, security, convergence, and economy), user features (familiarity and innovativeness), perceived usefulness, trust, satisfaction, and continuance intentions and provides a comparison of Google's Android OS and Apple's iOS. Design/methodology/approach We considered a sample of 245 respondents and used structural equation modeling to analyze the data. Findings The results indicate that convergence and familiarity significantly affected perceived usefulness and that security and economy significantly affected perceived trust in smart banking services. The relationships of security, economy, and innovativeness to perceived usefulness and those of convenience and familiarity to perceived trust were stronger for the Android OS than for iOS. The study contributes by proposing an integrated framework and providing a comparison between the Android OS and iOS in the context of smart banking.

• The Journal of the Korea Contents Association
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• v.22 no.2
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• pp.270-280
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• 2022

There has been a stream of literature studying moderators of the relationship between organizational ambidexterity and firm performance, but there remains a lack of research on moderators with a strategic perspective. We examined the effect of organizational ambidexterity on a firm's long-term performance and the moderating effect of a firm's relative exploration and exploitation based on a sample of 8,916 firms. We found a positive relationship between organizational ambidexterity and long-term performance measured by Tobin's q. The results also suggest that a firm's relative exploration positively moderates the relationship between organizational ambidexterity and long-term performance, whereas exploitation negatively moderates this relationship. We contribute to the current ambidexterity literature by integrating it with strategy literature. We found that the positive relationship between organizational ambidexterity and long-term performance is enlarged and long-lasting when a firm is a differentiator. In contrast, this positive relationship is lessened and short-lasting when a firm is a cost-leader.

• Korean Journal of Food Science and Technology
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• v.44 no.3
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• pp.274-279
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• 2012

The objective of this study was to develop oral matrix tablets for the sustained release of vitamin C. In this study hydroxypropyl methylcellulose (HPMC) has been utilized as an excipient, as it is one of the most widely used polymers, for use during long periods of time in formations. The vitamin C tablet formulation depends on the molecular weight and concentration of sustained-delivery in HPMC. Anti-oxidants have been added as a dissolution medium in order to prevent vitamin C degradation in water. The dissolution test was carried out in a distilled water medium, and the release model equation was applied to analyze the vitamin C release pattern. The results demonstrated that the release and lasting power of vitamin C tablets, containing HPMC, lasted for more than 12 h.

• Journal of Industrial Convergence
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• v.19 no.4
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• pp.9-15
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• 2021

The purpose of the study is to find out the difference between high school students' hopes and the school happiness of each cluster of grits. Method: 282 high students' responses were analyzed through correlation analysis and cluster analysis. Results: First, There is a positive correlation between hope and grit and school happiness. Second, Hope and Grit appeared in four clusters. School happiness had the highest "high psychological capital" group and the lowest "low psychological capital. Conclusion: It was discussed that the agency thinking and effort perseverance of grit should be reflected in the curriculum of general high schools. In addition, we propose to develop questionnaires for practical measurements.

• Journal of Digital Convergence
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• v.11 no.10
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• pp.295-303
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• 2013

This study highlight the role of perceived cost on user's continuance intention to use mobile TV service in china. We proposed research model based on the expectation-confirmation model(ECM) and reclaim 243 questionnaires from experienced users in china. Above all, the analysis results support significant relationship perceived variables, satisfaction, and continuance intention of mobile TV. First, while expectation confirmation has positive influence on perceived playfulness and satisfaction, the effect on perceived usefulness is not significant. Second, perceived cost can significantly predict perceived usefulness and satisfaction, however, we found no evidence of a statistically significant influence on perceived playfulness. Third, perceived usefulness and perceived playfulness have a positive influence on satisfaction, and perceived usefulness, satisfaction, and perceived playfulness have a positive influence on continuance intention. This results provide implications from both theoretical and managerial perspectives and the limitations have been discussed for future research.

• Journal of Convergence for Information Technology
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• v.9 no.8
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• pp.27-34
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• 2019

The purpose of this study is to empirically analyze the moderating effect of psychological empowerment on the relationship between technostress, the technology acceptance model, and the continuance intention of use. The results of the analyses are as follows: First, IT corporation workers' technostress had a negative effect on perceived ease of use and perceived usefulness. Second, psychological empowerment was found to regulate the relationship between technostress and the technology acceptance model. Third, the perceived ease of use of IT corporation workers had a significant positive effect on the continuance intention of use, and the perceived usefulness had a positive effect on the continuance intention of use. These findings imply that training and education should be continuously conducted to improve psychological empowerment as well as manage technostress.

• Journal of Digital Convergence
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• v.20 no.3
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• pp.169-180
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• 2022

As people spend more time indoors due to the COVID-19 pandemic situation, content consumption is increasing, leading to the rapid demand for Over The Top(OTT) services. Thus, this study attempted to verify impacts of OTT traits on the value, satisfaction, and continuous use intention perceived by users. Through the survey, 437 responses were collected, and analysis was conducted using AMOS 26.0. Results found that the traits of OTT service had a positive effect on perceived value that had a positive effect on user satisfaction and continuous use intention. User satisfaction was also found to have a positive effect on the intention to continue using OTT services. Moreover, hedonic innovation moderated the relationships between OTT traits and perceived value with exception of ubiquity. The findings provide valuable information for OTT service providers in understading users' behaviors.

• The Journal of the Korea Contents Association
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• v.16 no.4
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• pp.211-223
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• 2016

Pro bono, a type of voluntary activity, has been considered important in enhancing desirable voluntary activities in our society. This study conducts research on the concept and sustainability of pro bono activities. In doing that, the study conducts focus group interviews with the pro bono activists who have been doing voluntary works for at least six months. Particularly, the study focuses on how to stimulate the participation of people with expertise in probono voluntary activities. The findings suggest that hub-centers be established in managing and connecting probono activities among probono volunteers and keep them motivated. Even though probono activism assume the principles of voluntarism and no-salary, it is necessary to provide potential probono volunteers with several incentives such as tax break and income tax deduction.

• Journal of the Korea Society of Computer and Information
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• v.19 no.2
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• pp.221-231
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• 2014

TIn this paper, The need for a long-term sustainable Green IT strategy to pursue strategic partnerships and alliance was proposed. We made a research model to identify how social pressure, environmental orientation and environmental attractiveness affect into the Green IT strategy, and how Green IT strategy affects on Green IT company's environmental performance. In previous studies, the long-term persistence was used as the dependent variables, but in this paper it was used as a parameter variable. A survey of Green IT companies and a empirical analysis by statistical software package were conducted. It was verified that the mediating effect is between the social pressure, environmental orientation, environmental attractiveness and environmental performance by the long-term persistence.

• Proceedings of the Korea Water Resources Association Conference
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• 2015.05a
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• pp.94-94
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• 2015

기후변화와 변동으로 인한 기상이변이 갈수록 심각해지고 발생 빈도도 잦아짐에 따라 현재의 배수관련 사회기반시설(Drainage Infrastructure)이 이런 문제에 대처할 준비가 잘되어 있는지에 대해 의문점이 제기되고 있다. 현재의 배수관련 사회기반시설의 설계는 이른바 정상성(stationarity)이라는 가정 하에 강우의 강도(Intensity), 지속기간(Duration), 빈도(Frequency)의 관계를 나타내는 I-D-F 곡선을 주로 이용하기 때문에 기후변화로 인한 극치사상(extremes)의 유의한 변화를 나타낼 수가 없다는 한계점을 가지고 있다. 그러나 기후변화는 극한기후(climatic extremes)의 특성을 비정상성(nonstationarity)이라 일컫는 개념으로 바꾸고 있기 때문에 배수관련 기반구조 설계(Drainage Infrastructuredesign)의 기본 가정의 하나인 강우 통계 매개변수의 정상성은 기후변화의 시대에는 더는 유효하지 않을 수 있다. 본 논문에서는 이러한 비정상성을 고려하여 조건부 GEV 분포를 이용하여 지속시간별 확률강우량 과비정상성 I-D-F 곡선식을 유도하였다. 또한, 분포형 홍수유출모형인 S-RAT(Spatial Runoff Assessment Tool)을 이용하여 강우강도의 증가가 설계 최대유량(design peak flows)에 미치는 영향을 분석하였다. 분석결과 지속기간별 차이는 있었지만 고빈도로 갈수록 전반적으로 현행 I-D-F 곡선이 실질적으로 극한강수를 과소평가하고 있으며 정상성 I-D-F 곡선 작성 방법이 기후변화의 배수관련 기반구조물의 능력설계에 적합지 않을 수도 있음을 제시하였다.