• Science of Emotion and Sensibility
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• v.18 no.4
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• pp.59-74
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• 2015

When product or service provides unexpectedness the user would be satisfied, and lately some mobile applications and web services provide those unexpectedness. However, unexpectedness itself can make negative effects such as decrease of the ease of use, still studies about mobile application are focused on satisfaction from the usability. Therefore, we would study experimentally user experience changes caused by unexpectedness using serendipity in mobile application UX, and observe how those changes to affect to user satisfaction. In other words, we observed the relationship between factors such as the unexpectedness caused by interactions of mobile application, the serendipity provided game, perceived newness, perceived ease of use, perceived usability, and satisfaction. As a result, the serendipity has positive effect to the perceived newness and negative effect to the perceived ease of use, and perceived newness and perceived ease of use affect to perceived usability positively, and all three factors are have positive effects to the use satisfaction.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.19 no.5
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• pp.432-443
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• 2018

This study aims to present the direction of development of a policy framework to solve the problems associated with Smart Cities. For this purpose, first, after investigating the development process of domestic smart cities, we examined various cases of smart city policies being established overseas. Second, we analyzed the existing research into smart cities, in order to understand the relationship between the major issues. Third, an expert interview was conducted based on the identified issues. Fourth, we presented the direction of development of a Smart City policy framework to solve the major problems associated with domestic and foreign smart cities. In the policy framework presented in this research, after subdividing the elements used for solving each problem, we linked them with the smart city components and selected matching executable agents to prepare solutions. Then, once the deliberation process of the National Smart City Committee and the Smart Urban Service Support Organization has been completed, the government will support it financially and politically. It also suggested that it is necessary to perform continuous information gathering and monitoring work, along with the construction of a control tower to strengthen the network effect between smart city related markets. This research has significance in that it presents the procedures required for efficiently responding to the problems arising in the smart city promotion process. It is expected that it will serve as the basis for establishing policies dealing with the development and advancement of domestic smart cities in the future.

• Journal of Technology Innovation
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• v.25 no.4
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• pp.239-261
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• 2017

This paper analyzes how corporate product innovation affects firms' revenue and financial stability, and thereby draws the implications for the corporate strategy for sustainable growth. Corporate product innovation is defined as the development of new products within the firm, including bought-in products. Corporate revenue is measured by per capita sales and its growth rate, while financial stability is measured by debt-to-equity ratio and liquidity ratio. In the empirical analysis, the two-stage estimation method was used to control for the endogeneity of new product development. The data are drawn from the first (2005) to the sixth (2015) wave of the Human Capital Corporate Panel (HCCP) Survey, which are matched to the data from the Korea Investors Service (KIS). The results of the first-stage estimation indicate that product innovation of the firm is promoted by the firm's knowledge capital stock, human resources investment, and market-leading strategy. The second-stage estimation results indicate a positive relationship between the firm's level of activity in product innovation and short-term revenue (per capita sales and its growth), and financial stability (lower debt-to-equity ratio and higher liquidity ratio). These findings confirm that the firm's investment in technology innovation and subsequent product innovation are important strategies to enhance both short-term corporate revenue and long-term financial stability.

• Journal of Information Technology Application
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• v.3 no.4
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• pp.19-42
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• 2001

In this study, we surveyed information systems(IS) personnel in organizations which have adopted customer relationship management(CRM) systems (Group one IS personnel), those in organizations which plan to adopt CRM systems(Group two IS personnel), and IS consultants specialized in the CRM. We found that there are significant perception gaps among the three groups of IS practitioners in regard to the three aspects of CRM systems: the effects of CRM systems, critical success factors of CRM systems introduction, and the pros and cons of outsourcing a CRM system by the application service providers(ASP). The results reveal that Group one IS personnel evaluate the effectiveness of their CRM systems as moderate, while IS consultants evaluate the effectiveness of CRM systems very high and that Group two IS personnel expect the effectiveness of CRM systems to be as high as the evaluation of IS consultants. IS personnel evaluated the advantages of outsourcing CRM systems by ASP to be moderate while IS consultants evaluated it to be high. The results also show that the adoption of CRM systems is initiated by strong leadership of the top management but is not supported adequately by management thereafter.

• Journal of Animal Science and Technology
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• v.53 no.4
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• pp.311-317
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• 2011

The aim of this study was to evaluate the association between economic traits of Korean cattle (Hanwoo) and genetic variation in fatty acid binding protein 5 (FABP5) gene within QTL region of carcass weight and marbling score traits on BTA 14. We sequenced for detection of single nucleotide polymorphism (SNP) with 24 unrelated Hanwoo samples and identified four SNPs (-1141A>G, 949A>G, 969A>G and 1085C>G). Relationship between the genotypes of 583 Hanwoo individuals by PCR-RFLP and economic traits were analyzed by the mixed regression model implemented in the ASReml program. As the result of statistical analysis, SNP1 (-1141A>G) showed significant effect (p<0.003) on marbling score (MS) and SNP2 (949A>G) showed significant effect (p<0.034) on eye muscle area (EMA). Further studies are required to validate the significant SNPs in a bigger population, but the SNPs (-1141A>G and 949A>G) of FABP5 could be a genetic marker to estimate molecular breeding value (MEBV) for carcass traits in Hanwoo.

• Korean Journal of Food Science and Technology
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• v.30 no.1
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• pp.69-76
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• 1998

This study was investigated to determine the effect of additives and ionic strength on the functionality of extracted proteins in preblends in order to use less additive in restructured meat products. Preblends contained the combinations of sodium chloride (NaCl; 0, 4.5, 9.0%), sodium tripolyphosphate (STPP; 0, 2.5, 5.0%), and tetrasodium pyrophosphate (PP; 0, 2.44, 4.88%). The pH values increased linearly with increasing STPP and PP concentrations (p<0.01). In the equivalent ionic strengths, PP was more effective than STPP in increasing pH. Phosphate ions were more effective on total extractable protein (used 1 M NaCl buffer) than chloride ion at equivalent ionic strengths. Solubility was decreased by adding NaCl and increasing total extractable proteins. Meat sulfhydryl contents were high with increasing total extractable proteins. When protein extracts were heated at $65^{\circ}C$, 7 min, meat sulfhydryl contents decreased and surface hydrophobicity increased (p<0.01). However, all protein extracts showed no differences in SDS-PAGE pattern. In conclusion, PP is more effective than STPP in order to use less additive but there was no linear relationship between functionnal improvement and ionic strength.

• Culinary science and hospitality research
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• v.21 no.1
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• pp.210-224
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• 2015

The purpose of this study is to identify the effects of involvement in temple food on overall satisfaction, recommendation, and revisit intention. From June 15 to August 30, 2014, for those who have participated in temple stay at four temples in South Korea, the self-administered survey was conducted. Of a total of 400 questionnaires, 289 were employed for the analyses, which accounted for 72% of response rate. Results shows that the involvement in temple food positively influenced experience driven by motivation in temple stay. Considering a particular research topic of temple stay, it implies that the involvement in temple food plays a key role in affecting emotional and social value relating to experience in temple stay. Entertaining, educational, aesthetic, deviated factors created by this experience will contribute to making special memories and feeling great enjoyment. In addition, emotional and social value by temple food have a positive effect on recommendation and revisit intention through experience satisfaction. Furthermore, experiential factor was significant to overall satisfaction, revisit and recommendation intention. Social and emotional value according to involvement in temple food, in terms of conclusions in this study, influenced a reduction of stress and improvement of enjoyment. These values relating to involvement in temple food, therefore, are assumed to be the causal relationship with experiential factor and satisfaction in temple stay and subsequently will be regarded as determinants in defining temple food as a heathy dish.

• Journal of the Korean Society for Railway
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• v.19 no.2
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• pp.195-203
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• 2016

Concrete slab track was applied to the Gyeoungbu High Speed Railroad step 2 and the Honam High Speed Railroad. Concrete slab track incurs higher construction cost and lower maintenance cost than existing gravel track. For these reasons, the use of concrete slab track has increased in Korea. The biggest problem in the use of concrete slab track is repairing damage from settlement that can occur while trains are in service. High speed railroad design standards require allowable residual settlement of concrete slab track of less than 25mm. In order to satisfy the requirement of long term stability of concrete slab track, it is necessary to manage the secondary compression settlement within the allowable residual settlement. This study is to evaluate the secondary compression settlement with the variation of the secondary compression index, thickness of soft ground, and concrete slab track life. Statistical analysis is performed to determine the probability of distribution of areas where serious problems will be caused after the concrete slab track is constructed.

• The Journal of the Convergence on Culture Technology
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• v.8 no.6
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• pp.127-133
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• 2022

In the wake of COVID-19, more consumers prefer non-face-to-face services and the explosion in the use of delivery apps is shaping a new delivery culture. Meanwhile, in order to solve social problems such as platform monopoly of private delivery apps and increased brokerage fees, many municipalities are launching public delivery apps from 2020 onwards. However, consumers who are used for the existing private delivery apps are not aware of the public delivery apps and the utilization rate is low. In this study, we will look at the impact of sense of community and service quality (information quality, delivery quality) on the intend to use public delivery apps. Studies have shown that SOC and information quality have a significant impact on the attitude of using public delivery apps, but not delivery quality. In addition, the attitude of using public delivery apps has been shown to have a mediating effect on the relationship between SOC, information quality and public delivery app use intentions respectively. Therefore, to activate the public delivery apps, it was found that it is necessary not only to promote, but also to improve user convenience, such as product search and user review inquiry to improve information quality, along with efforts to strengthen the sense of local community.

• Journal of the Korean Applied Science and Technology
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• v.39 no.6
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• pp.748-759
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• 2022

The purpose of this study is to investigate the mediating effect of job commitment and the moderating effect of job burnout on the relationship between the protean career orientation and subjective career success of hair designers. For this purpose, a survey was conducted on 163 employees working at a representative A brand hair salon in Korea, and statistical analysis was conducted using SPSS 21, and SPSS Process Macro v. 3.3. The results of this study are as follows: First, Protean career orientation affects job commitment to focus on oneself in all aspects related to their job, and as a result, it has a mediating effect on subjective career success that satisfies their career. Second, Through the interaction between protean career orientation and job burnout, the moderating effect on job commitment was confirmed. The significance of this study is to suggest a career success plan for hair salon workers with relatively high turnover rate in the service field by dealing with the understanding of the hair salon organizational culture and the lack of hair designer protean career orientation in terms of the mediating role of job commitment and job burnout in career success.