• Journal of the Korea Academia-Industrial cooperation Society
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• v.19 no.6
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• pp.355-364
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• 2018

The objective of this study is to conduct basic research for the development of programs for improving university students' communication competence. As such, it seeks to determine if positive psychological capital can mediate the relationship between the geometric psychology type and communication competence. To that end, 321 Korean university students were surveyed using a questionnaire, and the data underwent scale reliability analysis, regression analysis, and path analysis. Regression analysis revealed the consistent regression results of variables, including geometric psychology type, positive psychological capital, and communication competence. Path analysis confirmed that positive psychological capital mediated the relationship between the geometric psychology type and communication competence, and the results suggested different patterns according to type of geometric psychology. The circle type mediated the sub-variable resilience vis-a-vis communication competence, and directly influenced the latter. The triangle type mediated the sub-factors of positive psychological capital - self-efficacy and resilience -vis-a-vis communication competence, and thus influencing the latter. The square type mediated the sub-factor of positive psychological capital - self-efficacy - vis-a-vis communication competence, and directly influenced the latter. The S type did not mediate positive psychological capital vis-a-vis communication competence, but directly influenced the latter. Thus, considering the above findings, in order to develop university students communication improvement programs, programs should be developed with the application of positive psychological capital considering geometric psychology type.

• Journal of Digital Convergence
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• v.16 no.6
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• pp.19-25
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• 2018

The purpose of this study was to investigate mediating effect of donation motivation between self-esteem and donation attitude of adolescents. For this purpose, 879 adolescents were surveyed in 4 cities and counties in the northwestern part of Chungcheongnamdo. This research was carried out by T-test and ANOVA to identify the difference of donation attitude according to general characteristics and by correlation analysis of main variables. Also hierarchical regression analysis was performed to identify the mediating effect and it was verified by Sobel test. The main results are as follows. First, donation attitudes differed according to gender, school level, and religion. Second, correlation analysis revealed a positive correlation between self-esteem, donation motivation and donation attitude. Third, regression analysis showed that both intrinsic donation motivation and external donation motivation were partially mediated between self-esteem and donation attitude. Finally, policies to increase donation attitude and donation behavior were discussed.

• Journal of Digital Convergence
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• v.13 no.3
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• pp.75-84
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• 2015

As the service industry has been getting increased attention as the core for the national economic growth, in order to promote growth and development of the industry, in-depth research on the workers in the industry has been timely called for. Therefore current study aims to explore the effect of leadership style on organizational citizenship behavior(ie OCB) for increased productivity of workers in the service industry, and the role of multi-dimensional justice in the relationship between them. The findings suggest that transformational and transactional leadership both have positive effect on OCB, implying that application of leadership style that is appropriate to the context may be more important, Also, mediation test of multi-dimensional justice resulted partial mediation effect except for the procedural justice in the relationship between transformational leadership and OCB.

• Journal of Digital Convergence
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• v.17 no.5
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• pp.191-205
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• 2019

This study investigated the relationship of authentic leadership(AL) with positive psychological capital(PPC) and teamwork competence(TC) and the mediation effect of PPC to facilitate theoretical and practical development of AL. For the empirical analysis, data were collected from the sample of 172 nurses working at general hospitals. Collected data were analyzed with factor analysis, correlation analysis, multiple regression analysis, mediated regression analysis using SPSS 21.0 to test the hypotheses. Results showed that the AL was positively related to the PPC as well as TC and the PPC was positively related to the TC. And further, the PPC is found as playing as a partial mediator on the relationship between the AL and the TC. These results provided the positive influence of authentic leadership on work team. Based on these results, practical implications were discussed for effectiveness of nurse organizations. Lastly, limitations were indicated and some possible directions for authentic leadership and its relationship to work team were suggested for future studies.

• Journal of the Computational Structural Engineering Institute of Korea
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• v.35 no.6
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• pp.351-356
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• 2022

In this paper, we present the regression analysis and design optimization for improving the permeability of 3D woven materials based on numerical analysis data. First, the parametric analysis model is generated with variables that define the gap sizes between each directional wire of the woven material. Then, material properties such as bulk modulus, thermal conductivity coefficient, and permeability are calculated using numerical analysis, and these material data are used in the polynomial-based regression analysis. The Pareto optimal solution is obtained between bulk modulus and permeability by using multi-objective optimization and shows their trade-off relation. In addition, gradient-based design optimization is applied to maximize the fluid permeability for 3D woven materials, and the optimal designs are obtained according to the various minimum bulk modulus constraints. Finally, the optimal solutions from regression equations are verified to demonstrate the accuracy of the proposed method.

• Culinary science and hospitality research
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• v.22 no.5
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• pp.82-94
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• 2016

This study on CRM oftKorean restaurant guests to test the emotional response and behavioral intention. Three kinds of variables(service quality, information quality, system quality) from Korean restaurant guests were set to test the CRM. Results of the multiple regression analysis revealed a positive significant relationship with respect to quality of service, quality information, and quality system with all customer emtional reaction. Second, the results also found that the three independent variables of quality of service (${\beta}=.104$, P<.01), information quality (${\beta}=.215$, P<.001), and system quality (${\beta}=.682$, P<001) had a significant positive effect on the dependent variable for customer behavior (+). Third, CRM quality of service, quality information, and quality of the restaurant system are shown to influence the behavior and it also showed that both the part-mediated effects.

• Proceedings of the Korea Water Resources Association Conference
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• 2021.06a
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• pp.189-189
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• 2021

최근 기후변화로 인한 가뭄, 홍수 등의 기상재해 발생빈도가 증가함에 따라 저수지의 용수공급 안정성이 감소하고 있다. 우리나라 농업용수는 총 수자원 이용량의 48%를 차지하고 있으며 영농활동의 필수 자원으로 농업용 저수지의 용수공급에 크게 의존하고 있다. 하지만 유효저수용량을 기준으로 다목적댐과 비교하였을 때 농업용 저수지의 규모가 작으므로 가뭄이 발생하게 된다면 용수공급에 큰 어려움을 겪을 수 있다. 또한 농업용 저수지의 절반 이상이 준공년도가 70년 이상으로 농업용 저수지의 노후화가 심각한 상태이며 수문 실측자료가 부족하여 이수 측면의 활용성과 관련된 연구가 부족한 실정이다. 이에 따라 농업용 저수지의 안정적인 용수공급 및 이수 측면의 분석을 위해서는 농업용 저수지 상류의 정확도 높은 장기유출량 산정이 선행되어야 한다. 현재 농업용 저수지의 장기유출량 산정을 위해 사용되고 있는 DIROM 모형은 Sugawara의 TANK 모형을 우리나라 농업용 저수지의 유역 특성에 맞게 수정한 일별 유입량 모의 발생 모형이다. 그러나 DIROM 모형의 매개변수는 1980년대에 개발된 이후 현재까지 특별한 개선없이 사용되고 있다. 따라서 최근 우리나라의 기후 및 토지이용 특성이 변화함에 따라 유출 특성이 변화하였기 때문에 장기유출량 산정을 위한 매개변수 개선이 필요하다. 본 연구에서는 하천의 최상류에 위치한 수위 관측소의 유출량 자료를 활용하여 지역별 DIROM 모형의 매개변수를 추정하고, 추정된 매개변수를 활용하여 회귀식을 개발하고자 하였다. 개발된 회귀식의 검증을 위해 최근 수문자료 관측을 수행하기 시작한 농업용 저수지의 실측 수문자료를 활용하였다. 이를 통해 농업용 저수지의 안정적인 용수공급 및 저수지 관리를 통해 농업용수의 활용성을 개선할 수 있을 것이라 판단된다.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.15 no.8
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• pp.4972-4980
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• 2014

This study examined the effects of teacher job stress and emotional intelligence on the turnover intent and job satisfaction. To this end, an early childhood teacher survey of 220 people using SPSS 9.0 data processing, analysis, and the independent variables were used to predict the dependent variable. Simple regression analysis and regression analysis of a follow-up examination were then performed. In the first study, the early childhood teachers' turnover intention due to job stress and job satisfaction revealed job stress to be a significant factor. The children's lack of leadership and administrative support work overload factors contributed to causes of stress. The turnover intention appeared to affect the mind. Second, early childhood teachers job satisfaction, job stress and turnover intention were affected by attempts to mediate the influence of job stress. Therefore, mediation plays a significant role. These results show that infant teacher duties affect the turnover intention and job satisfaction.

• Journal of Technology Innovation
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• v.29 no.4
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• pp.31-57
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• 2021

This study explores the effect of open innovation activities on innovation performance by dividing into two dimensions of breadth and depth of open innovation activity, and it also verifies the mediating effect of technical protection between open innovation activities and innovation performance. In order to examine the hypothesis, it has surveyed 1,403 companies of manufacturing and service with experience in producing innovative results. The results find that the breadth of open innovation activities has a positive effect on the achievement of radical innovation, and the depth of open innovation activities brings a positive effect on the achievement of incremental innovation. The verification result of the mediating effect of technology protection indicates that partially mediated between the breadth of innovation activities and radical innovation activities, and in the case of the depth, it is completely mediated. The results of this study provide the crucial implications not only for the company promoting open innovation, but especially also for the companies promoting product innovation by acquiring technology.

• Journal of Digital Convergence
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• v.20 no.5
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• pp.221-226
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• 2022

The purpose of this study is to explore the differentiated motivations of users of live commerce by focusing on the entry into untact consumption culture. In addition, we intend to verify the mediating effect of engagement in the relationship between the motivation and attitude of live commerce use. As for the research method, an online survey was conducted targeting live commerce users, and 245 valid samples were used for analysis. For data analysis, frequency analysis, exploratory factor analysis, reliability analysis, multiple regression analysis, and mediation regression analysis were performed. As a result of the analysis, the motivation for using live commerce was derived from four factors: Enjoyment of interaction, Substitutability of personal examination, Need for community, Trend setting. And Engagement was found to have a significant effect on attitude. Finally, engagement was found to have a partial mediating effect in the relationship between the motivation and attitude of live commerce use. The research results will provide implications for understanding non-face-to-face consumption culture and establishing effective strategies for the live commerce industry in the future.