• Proceedings of the Korea Water Resources Association Conference
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• 2006.05a
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• pp.804-808
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• 2006

유량자료를 이용한 매개변수적 빈도해석 방법은 주관적인 분포형 선정문제를 안고 있다. 이러한 분포형 선택문제는 수문자료의 오랜 축척에 따른 통계적 분석을 통해 하나의 확률분포형을 선택할 수 있는 경우 극복될 수 있을 것이다. 그러나, 일반적으로 수문자료의 관측 기간이 짧아 하나의 분포형을 선택하는데 어려움을 갖고 있다. 반면에, 지역가중다항식을 이용한 빈도해석의 경우 단일분포형 선택문제가 아닌 자료로 부터 매개변수를 선택하고 추정함으로서 White noise를 제거 또는 감소하며 자연계의 이질적, 다중변수적 그리고 시공간적 특성을 잘 반영할 수 있는 것으로 알려져 있다. 따라서 본 연구에서는 단일 주관분포 선택문제가 아닌 자료로부터 매개변수의 선택 추정이 이루어지는 지역가중다항식을 이용한 빈도해석을 수행하였다. 분석에는 서울강우자료로 매개변수적 빈도해석을 수행하는 경우 Gumbel, GEV(Type I Extreme Value) 그리고 LN2 (Log-Normal 2) 등의 분포형을 적용하여 지역 가중다항 추정자의 산출 결과와 비교 검토하였다. 또한 각각의 방법을 적용해 이중첨두(bimodal) 분포형에 대한 모형의 적합성을 도시적으로 비교 산정하였다.

• Asia-Pacific Journal of Business Venturing and Entrepreneurship
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• v.11 no.5
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• pp.175-188
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• 2016

This study is intended to look into the effects of project managers' leadership on participants' individual competency and project performance. To achieve this, a survey was empirically carried out to a sample of 276 researchers who are working on a project with a research and development group in private R&D centers. The results of this study were summarized as follows. First, the leadership competency of project managers had a significant positive effect on the individual competency of project participants. Second, the leadership competency of project managers had a significant positive effect on the project management performance. Third, the leadership competency of project managers had no significant effect on the project completion performance. Fourth, the individual competency of project participants had a significant positive effect on the project management performance. Fifth, the individual competency of project participants had no significant effect on the project completion performance. Sixth, the project management performance had a significant positive effect on the project completion performance. Seventh, the project completion performance was indirectly mediated in the effect of project managers' leadership competency on project completion performance. Eighth, the project management performance was indirectly mediated in the effect of project participants' individual competency on project completion performance. Based on the findings stated above, a combination of project management performance can generate better results in the effect of project participants' individual competency on project completion performance.

• Journal of Convergence for Information Technology
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• v.7 no.1
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• pp.1-9
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• 2017

This study is to verify the mediating effect of depression between job stress and job satisfaction among workers in small and medium sized enterprises. The survey was conducted to workers in small and medium sized enterprises, and 117 cases were finally applied. As results, job stress has significantly negative effect on job satisfaction and positive effect on depression. Depression also has partial mediating effect on between job stress and job satisfaction. We finally suggest that customized management system should be provided for the workers in small and medium-sized enterprises, and occupational welfare system, including employee assistance program (EAP), must be launched for these workers.

• The Journal of the Korea Contents Association
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• v.13 no.9
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• pp.216-226
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• 2013

This study is conducted to verify the effect on the job performance mediating job satisfaction of participant's self-leadership and empowerment for Senior Employment Programs. The questionnaire research targets, a total of 158, are used analysis on participants for Senior Employment Programs in Gwang-ju, Jeollanam-do, Jeollabuk-do, Jeju. In order to derive research result to use a SPSS Version 12.0 for Window program, and factorial analysis, reliability verification for each variable were used. Additionally, It was used to carry out hypothesis verification for Regression analysis. As a result, the study shows that the job performance is maximized by the mediation effect of job satisfaction with self-leadership and empowerment of participants on Senior Employment Programs. On the base of study result, this paper suggest for participants in Senior Employment Program to enforce method about Natural Reward Strategies, Meaning, Confidence, Impact.

• Journal of the Korea Convergence Society
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• v.10 no.5
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• pp.213-219
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• 2019

This study is designed to analyze the effect of entrepreneurship orientation of owner managers on product innovation performance through user innovation participation by using Korea Innovation Survey 2014 (KIS 2014) conducted by STEPI (Science and Technology Policy Institute). The findings show that entrepreneurial orientation of owner managers measured by a proxy variable of ownership ratio has positive relationship with innovation performance of firms. They also present that user innovation activity has a partial mediating effect on the relationship between the entrepreneurial orientation of owner managers and innovation performance of firms. This study suggests that the higher the entrepreneurial orientation of the owner manager, the higher the innovation performance. The innovation performance can be intensified when the open innovation strategy is implemented through the user participation.

• Proceedings of the Korea Water Resources Association Conference
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• 2021.06a
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• pp.200-200
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• 2021

하천은 용수공급, 관개, 친수활동, 산업활동 등 인간의 활동에 중요한 역할을 한다. 이에 따라 수질관리는 필수적이며 유기물, 중금속, 화학물질 등의 용존물질들은 수질문제에 직접적으로 영향을 미친다. 따라서 하천에서의 용존물질의 혼합 거동을 파악하기 위한 연구가 지난 수십년간 이루어지고 있다. 하천 흐름에 따른 오염물질의 이동 및 확산 거동을 예측하기 위하여 1차원 추적모형이 활용되는데, 그 중 하천저장대 모형(Transient Storage Model, TSM)은 자연하천의 복잡하고 불규칙한 수리·지형적인 특성을 단순하게 반영할 수 있다는 장점때문에 가장 많이 사용된다. 하지만 TSM은 매개변수에 대한 의존성과 불확도가 크며, TSM의 저장대에서의 농도분포에 대한 지수함수형태의 모델링이 하상간극수역(Hyporheic zone)에서의 저장대 특성을 반영하기에 구조적으로 부정확하다는 단점이 제기되고 있다. 최근 이러한 TSM의 단점을 보완하고 하천에서의 저장대 메커니즘을 보다 정확하게 구현하고자 체류시간분포(residence time distribution)를 이용한 확률론적 저장대 모델링 프레임워크가 등장하고 있다. 본 연구에서는 본류대와 저장대에서의 오염물질의 체류시간분포를 분리하여 해석하고 이를 전달함수(transfer function)를 이용한 합성곱으로 결합한 형태의 프레임워크를 적용하여 모델링하였다. 상기의 모형을 검증하기 위하여 2019년 감천의 4.85km 구간에서 추적자 실험을 실시하였다. 실험 당시 유량은 12.9 m³/s로 풍수기에 해당되며 평균 유속은 약 0.6 m/s로 측정되었다. 모형의 매개변수는 추적자 실험으로부터 최적화 기법을 통해 역모델링기법으로 결정하였다. 제안된 모형에 의한 모의 결과를 추적자 실험에서의 농도측정자료와 비교한 결과, 평균 0.988의 결정계수를 보여 매우 높은 정확도를 보이고 있음을 알 수 있었다. 저장대특성을 나타내는 농도곡선의 꼬리부에 대하여 같은 조건에서 1차원 이송-분산(ADE) 모형, TSM의 모의결과와도 비교한 결과 본 모형은 추적자 실험 농도측정 결과와 평균 0.195의 오차율을 보이며, 이는 ADE 모형과 TSM의 오차율인 14.03과 1.866에 비해 매우 정확한 것으로 나타났다.

• Journal of the Health Care and Life Science
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• v.11 no.2
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• pp.341-349
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• 2023

This study analyzed the impact on entrepreneurship, passion, and start-up execution willingness to start a business for 200 prospective start-ups in Jeollanam-do. As a result of this study, it was found that there was an effect at the statistically significant level (p<.05) in the relationship between the start-up support program and start-up willingness. In the mediating effect analysis of passion for entrepreneurship support programs, it was confirmed that passion played a complete mediating role in the relationship between mentoring and start-up willingness and a partial mediating role in the relationship between the start-up support fund and start-up willingness. In the analysis of the mediating effect of passion on entrepreneurship, it was confirmed that passion played a partial mediating role in the relationship between initiative and start-up execution willingness, and also in the relationship between risk sensitivity and start-up execution willingness. This shows that when proper initiative and risk tolerance are recognized, passion enhances the start-up willingness to run into the start-up market. Based on these results, we suggested theoretical implications and policy support directions to increase the willingness of prospective founders to implement.

• The Journal of the Korea Contents Association
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• v.20 no.6
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• pp.445-459
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• 2020

The purpose of this study was to verify the mediating effect of decentering between centrality of event and meaning reconstruction, based on relational loss experiences. To do so, surveys were conducted on 295 people(male: 109, female: 186) who would experience relational loss and be over 20 years old in the country using a questionnaire including a relational loss history checklist, the CES(Centrality of Event Scale), the Decentering Scale and the GMRI(Grief and Meaning Reconstruction Inventory). And the valid data were statistically processed using SPSS 22.0 program. The results of the study was followed. First, both centrality of event and decentering had positive corrleations with meaning reconstruction. Second, decentering completely mediated relationship of centrality of event and meaning reconstruction. Centrality of event had no direct effect on meaning reconstruction and the entire effect of centrality of event on meaning reconstruction was transmitted only through the path of decentering. Based on these results, limitations and implications of this study and suggestions for future studies were discussed.

• The Journal of the Korea Contents Association
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• v.20 no.4
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• pp.475-486
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• 2020

This study aims to discover the mediating effect of Self-Encouragement and Self-Discouragement on the Relationships between Fear of Negative Evaluation and Social Interaction Anxiety. A questionnaire was conducted on 319 university students and the data was analyzed with Pearson's correlation and regression. As a result, there was a positive correlation between Fear of Negative Evaluation and Social Interaction Anxiety. Also, Fear of Negative Evaluation and Social Interaction Anxiety were positively correlated with Self-Discouragement and negatively correlated with Self-Encouragement. Next, multiple regression showed that Self-Discouragement has a perfect mediating effect and Self-Encouragement has a partial mediating effect on the Relationship between Fear of Negative Evaluation and Social Interaction Anxiety. These results imply that counselee with Social Interaction Anxiety can be treated effectively by promoting self-encouragement.

• Korean Journal of Cognitive Science
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• v.26 no.1
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• pp.97-123
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• 2015

This paper theoretically examines the mediations of media on disaster and the structure of the politics of compassion, from the cultural politics approaches. The media has treated for a long time many different forms of disaster and sentimental reactions that were bound to the human life. In the present paper we shall take a different approach from traditional ones that focus on how the media represents these subjects and how it arouses cognitive, affective, behavioral reactions of the audience. We will instead focus on how these subjects of disaster and compassion constitute new social meanings through the mediation of media. And we will investigate that the experiences of social sufferings mediated by media are related to the ethical potentiality vital to the construction of global public sphere and global civil society that need to be reshaped in the $21^{st}$ century media environment. This paper attempts to understand new cultural-politics meanings of the media as a major factor conducting the audience's new public actions through mediating sufferings of the others.