• Culinary science and hospitality research
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• v.22 no.3
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• pp.254-268
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• 2016

The purpose of this study was to verify the effects of two types of social capital on trust, purchase intention, and SNS-WOM with regards to food products. In addition, the mediating role of trust was also examined. This survey was conducted from 15th to 29th on February, 2016 among SNS using convenience sampling method. A total of 300 responses were collected, of which 291 were used for analysis, after excluding responses containing missing data. Multiple regression and hierarchical regression were conducted to verify the hypotheses. The results from this study are as follows. First, it was found that bridging social capital had a greater effect on trust of food product than the bonding social capital. ; Second, trust of food product significantly impacted purchase intention and SNS-WOM;. Third, trust of food product found to mediate the relationships between bridging social capital and SNS-WOM, bridging social capital and purchase intention.

• KSCE Journal of Civil and Environmental Engineering Research
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• v.38 no.2
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• pp.237-247
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• 2018

The basin characteristics reflect the attributes of geomorphological pattern of basin and stream networks affect the rainfall-runoff. In order to analyze the relationship between the basin runoff and stream morphometric characteristics, the morphometric characteristics were investigated for 27 water-level observation stations on 19 rivers in the Han River basin using Arc-map. The morphometric characteristics were divided into linear, areal and relief aspects for calculation while the annual mean runoff ratio as a basin response by rainfall was estimated using the measured precipitation and discharge to analyze the rainfall-runoff characteristics. The correlation among the morphometric parameters were schematized to analyze the correlations among them. The multiple regression equation for rainfall-runoff ratio was provided with morphometric parameters of stream length ratio, form factor ratio, shape factor, stream area ratio, and relief ratio and the coefficient of determination was 0.691. The RMSE and MAPE between the measured and the estimated annual runoff rates were found as 0.09, 11.61% respectively, the suggested regression equation showed good estimation.

• Ecology and Resilient Infrastructure
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• v.5 no.4
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• pp.276-284
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• 2018

In order to analyze sediment transport characteristics of knickpoint migration, sediment transport length, and sediment transport weight through the under-flow type vertical lift gate, the hydraulic model experiment and dimensional analysis were performed. The correlations between Froude number and sediment transport characteristics were schematized. The multiple regression formulae for sediment transport characteristics with non-dimensional parameters were suggested. The determination coefficients of multiple regression equations appeared high as 0.618 for knickpoint migration, 0.632 for sediment transport length, and 0.866 for sediment transport weight. In order to evaluate the applicability of the developed hydraulic characteristic equations, 95% prediction interval analysis was conducted on the measured and the calculated by multiple regression equations, and it was determined that NSE (Nash-Sutcliffe Efficiency), RMSE (root mean square), and MAPE (mean absolute percentage error) are appropriate, for the accuracy analysis related to the prediction on sediment transport characteristics of kickpoint migration, sediment transport length and weight.

• Journal of the Korea Convergence Society
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• v.7 no.1
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• pp.183-188
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• 2016

The purposes of this study are to analyze how effects of parental attitudes, Sense of Community on adolescents school adjustment and verified was the mediating effect of Sense of Community between parenting attitudes and adolescents school adjustment. For data analysis, we have use the first year data for the 1st year middle schol students from 'the Korean Children and Youth Panel Survey, conducted in 2010' by the National Youth Policy Institute. The study shows that parenting attitudes and Sense of Community have a significant effect on adolescents school adjustment. And, the Sense of Community have a significant partial mediating effect among on parental attitudes and school adjustment. Thus, efforts to foster individual's Sense of Community and develop desirable parenting attitudes should be made to enhance the level of school adjustment.

• Proceedings of the Korea Society of Information Technology Applications Conference
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• 2006.06a
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• pp.345-354
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• 2006

고객관계관리는 많은 기업들에게 경영자와 차별화할 수 있는 부문으로서 인식되어 왔다. 수익성 높은 고객을 확보하고 유지하는 것이 매우 중요하기 때문이다. 기업의 핵심역량으로서 고객관계관리를 강화하기 위해서는 고객정보를 더욱 효과적으로 관리해야 한다. 본 연구는 고객정보관리 활동들과 그에 영향을 마치는 영향요인들을 살펴보고, 고객정보 관리 충실도와 고객정보 품질 간의 관계를 보인다. 또한, 고객정보관리 활동에 영향을 미치는 영향요인과 고객정보 품질 사이에서 고객정보관리 프로세스 충실도가 매개효과를 나타냄을 증명한다. 설문을 통해 얻은 65개 기업의 자료를 바탕으로 다중회귀분석과 ANOVA를 실시해 가설에 대한 실증 분석을 하였다. 분석 결과 6개의 고객정보관리 활동들과 이러한 고개정보관리 프로세스에 대한 5개의 영향요인을 발견하였다. 고객정보관리 프로세스의 충실도는 고객정보 품질과 밀접한 관계를 보였고, 영향요인과 고객정보 품질 사이에서 고객정보관리 프로세스의 충실도가 매개 역할을 수행함을 밝혀내었다. 마지막으로 본 연구의 의의와 결론, 향후 연구방향을 제시하였다.

• Proceedings of the Korea Water Resources Association Conference
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• 2002.05b
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• pp.1334-1339
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• 2002

The objective of this study is to help practicing engineers easily use the Clark model which is used for estimating the magnitude of design flood for small stream. A representative unit hydrograph was derived on the basis of the past rainfall-runoff data and unit hydrographs, and the storage coefficient of Clark model was estimated by using hydrograph recession analysis. Since the storage coefficient(K) is a dominating factor among the parameters of Clark method, a mulitple regression formula, which has the drainage area, main channel length and slope as parameters, is propsed to estimate K value of a basin where measured data are missing. The result of regression analysis showed that there is a correlation between a storage coefficient(K) and aforemetioned three parameters in homogenious basins. A regression formular for K was derived using these correlations in a basin of Han River, Nakdong River, Young River, Kum River and Sumjin River

• Korean Journal of Social Welfare Studies
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• v.43 no.2
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• pp.267-293
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• 2012

The purpose of this study is to investigate the effect of educational satisfaction on project effectiveness, and the mediating effect of participation satisfaction between educational satisfaction and project effectiveness of employment promotion project for the elderly. The data were Research of the aged joining employment promotion project for the elderly made by Korea Labor Force Development Institute for the Aged in 2010 and the total subject was 1220. Descriptive analysis, correlations analysis, and the multiple regression analysis for research model test were used. Additionally, Sobel test was used to verify the significant mediating effect. Results were obtained in this study as the educational satisfaction have significant effects on participation satisfaction. And the mediating effect of educational satisfaction on project effectiveness is statistically significant. Based on the findings, in order to increase project effectiveness, we need to realize the importance of education for the aged joining employment promotion project for the elderly, and consider the participation satisfaction.

• The Journal of the Korea Contents Association
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• v.22 no.5
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• pp.424-434
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• 2022

This study is to verify the mediating effect of self-esteem on the effect of the elderly's smart device use on life satisfaction. To this end, secondary data analysis was conducted using the Korea Media Panel Survey conducted by the Information and Communication Policy Institute in 2021. The responses of 3,211 people in their 60s or older who are the subjects of this study were utilized. For analysis, descriptive statistics, correlation, and multiple regression analysis were performed using SPSS, and the Sobel test was conducted to verify mediating effects. As a result, smart device utilization averaged 2.13 points out of 5, indicating that the actual utilization level was less than half. The use of smart devices, an independent variable, had a positive effect on the dependent variable, life satisfaction. Self-esteem, which is a parameter, has been verified as a partial mediating effect in that smart device use affects life satisfaction. Based on the results of this study, various policy and practical measures were proposed to increase the smart device utilization rate of the elderly in Korea, improve self-esteem and life satisfaction, so that they can spend a happy old age.

• Journal of Digital Convergence
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• v.14 no.4
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• pp.139-147
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• 2016

The purpose of this study is to identify the relationships between AI education characteristics and psychological capital, psychological capital and flow, AI characteristics and flow through meditating effect of psychological capital in the digital convergence society. There are three AI characteristics: correctness, usefulness, easy of use. This empirical study was examined by 282 questionnaires to the three universities that teach accounting information system. It was performed by three-step method of the hierarchical regression analysis for the multiple regression analysis and parameter using the SPSS 22.0. The results and implications by analysis are as follows. First, AI characteristics and psychological capital have statistically significant positive influence. From AI attribute, correctness was established as the most important element. Second, psychological capital positively(+) influences flow. It allowed for the developed in flow. Third, psychological capital was shown as the major meditative variable between AI characteristics and flow. Through these, this paper suggests to reinforce self-efficacy, hope, resilience, optimism.

• Journal of Digital Convergence
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• v.20 no.4
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• pp.169-184
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• 2022

The purpose of this study is to give a help organizations facing various crises establish effective crisis preparedness plans by confirming the effect of an organization's crisis management system on crisis preparedness, and by confirming the multiple mediating effects of crisis monitoring and learning from failure. The survey for the empirical study was conducted targeting 121 executives, directors, mangers and mid-level employees of the MBA program of the P National University. Confirmatory factor analysis, reliability analysis, and regression analysis were performed using SPSS 25 and Amos 25, and mediating effect analysis was performed using the boot-strapping technique using process macro. As a result of the study, it was found that the crisis management system had a positive (+) effect on crisis preparedness, and learning from failure and crisis monitoring multi-mediate between the crisis management system and crisis preparedness. Through the research results, it was confirmed that there was a significant effect of learning from failure and crisis monitoring that had an effect on crisis preparedness. As an implication, a crisis preparedness plan suitable for the organizational situation was presented, and the limitations of the study and future research directions were presented.