• Proceedings of the Korea Water Resources Association Conference
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• 2017.05a
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• pp.515-515
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• 2017

하천에서 취수원을 개발하는데 있어 지층의 구성으로 물리, 화학적 여과, 흡착 등을 통해 자연 정화되는 간접 취수 방식이 활발히 도입되고 있다. 양질의 취수원을 공급할 수 있는 간접 취수 방식은 수량 확보 측면에서의 불확실성과 유지관리상의 어려움 때문에 많은 시행착오가 발생된다. 이와 같은 단점을 개선하기 위해 하상을 개착하여 불균질한 대수층을 치환하고 스크린을 통해 간접 취수원을 개발하는 하상여과 방식이 도입되고 있다. 대수층을 치환하여 여재를 구성함에 있어 오염물질 및 탁도의 저감 효율을 극대화하기 위해 다양한 연구가 진행되고 있다. 본 연구에서는 개착식 하상여과에서 치환하는 여재의 구성에 따른 탁도의 저감 효율을 분석하기 위해 축소 모형실험으로 구성하였다. 각각의 여재의 구성에 대해서는 상수도 시설기준을 통해 축소된 입경의 매질로 구성하였다. 실험실 규모의 모형 수조($1500mm{\times}500mm{\times}1700mm$)를 구성하고 하부에는 내경 80mm이고 길이 1300mm인 기능성 스크린이 부착된 취수관을 설치하였다. 모형 수조에서 여재의 두께는 총 1000mm로 구성하였고, 각각의 층에 대해서는 250mm로 하여 4개의 층을 구성할 수 있도록 하였다. 치환하는 여재의 매질에는 자갈, 왕사, 중사, 화산석을 사용하였고, 각각의 입경은 5-10mm, 2-5mm, 1-2mm, 2-5mm이고, 탁도를 유발하는 물질로는 입경이 $20{\mu}m$인 황토를 사용하였다. 단일매질 구성을 통해 각각의 여재 종류에 따른 탁도 저감 효과에 대해서 분석하였고, 세 가지의 혼합매질 구성을 통해 치환층 여재의 배치에 따른 탁도 저감 효과를 분석하였고, 각각의 구성은 중사-왕사-자갈-화산석, 화산석-중사-왕사-자갈, 중사-왕사-화산석-자갈로 하였다. 주입수는 30-50NTU를 유지하였으며 유출수의 탁도를 통해 저감 효율을 분석하였다. 분석된 결과를 통해 개착식 하상여과 방식의 여재 구성에 대해서 탁도 저감에 효율을 극대화할 수 있을 것으로 보여진다.

• 한국사회정책
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• v.19 no.3
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• pp.215-245
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• 2012

The purpose of this study is to examine pathways of factors that influence job satisfaction for full-time and part-time married female employees with children of 18 or under and to compare path coefficients for two groups. Simultaneously analyzing multiple populations, we found that the path model was appropriate for both groups with significant differences in path coefficients. Income, workplace size, husband's support for wife's work, and work-to-family conflict had direct effects on job satisfaction for both groups whereas health had a direct effect only among full-time workers. Family-to-work conflict had an indirect effect for both types of workers, while health had an indirect effect among full-time employees only, and income and having children under school age among part-time employees only. The results indicate that differentiated approaches to increase job satisfaction for full- and part-time employees are needed.

• Journal of the Korean Applied Science and Technology
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• v.38 no.6
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• pp.1502-1511
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• 2021

In order to analyze the phenomenon that occurs as the human brand domain of the golf advertising model expands, this study conducted a causal relationship (SEM) of 521 people using a mobile survey (URL) according to a sampling plan from July 1 to November 15, 2021. was applied and analyzed. First, the hypothesis was adopted with a statistically significant positive (+) effect on the fit of the human brand of the golf advertising model. Second, the hypothesis of suitability was adopted with a statistically significant positive (+) effect on purchasing behavior. Third, the human brand of the golf advertising model was hypothesized to have a statistically significant positive (+) effect on purchasing behavior. Finally, as a result of calculating the indirect effect through bootstrapping, it can be seen that the indirect effect of suitability in the relationship between human brand and purchasing behavior is statistically significant.

• Journal of Labour Economics
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• v.33 no.2
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• pp.53-89
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• 2010

Curricula relevant to labor market needs are often designed with the goals of individual employment and regional development at the forefront. This study provided information on regional scope by investigating the extent and determinants of the geographic mobility of vocational high school graduates and the effects of that mobility on first-job wage rates. Geographic mobility was defined as being employed in other provinces in which vocational schools were located. About 38% of graduates were employed in other provinces. Geographic mobility was positively related to gender and human capital such as health, course of study, vocational certificate, and job training. Mobility led to higher wage rates even after controlling for sample selection bias. The implication is that vocational high school curricula which focus excessively on provincial concerns may weaken a workforce's effectiveness.

• Journal of Korea Fair Competition Federation
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• no.110
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• pp.10-22
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• 2004

최근 서울고등법원은 일련의 판결에서 상품$\cdot$용역거래와 자금$\cdot$자산거래를 구분하고, 전자에 수반하여 간접적으로 자금지원효과를 내는 행위는 자금지원행위에 포섭되지 않는다고 판시하였다. 그 논거로는 공정거래법 관련 조항의 문언이나 입법취지, 여타 불공정거래행위 규정의 사문화 우려 및 확대해석에 따른 규제의 예측가능성 위협 등이 제시되었다. 그런데 지원행위에 대한 서울고법의 ''이분법적 접근방법''(dichotomous approach)은 지원행위의 개념, 성질 및 효과, 불공정거래행위 금지의 체계 등에 비추어 부당하다. 지원행위에 관한 한 상품$\cdot$용역 거래를 자금$\cdot$자산거래와 구별할 수 있는 객관적 기준이 존재할 수 없을 뿐만 아니라, 공정거래법은 일관되게 단지 거래의 목적물뿐만 아니라 거래에 수반되는 반대급부나 결제방법 등의 관점에서 폭넓게 지원행위를 규정함으로써 상품$\cdot$용역거래에 따라 지원효과가 발생하는 경우를 염두에 두고 있기 때문이다. 또한 부당 지원 행위금지는 차별취급 등 여타 불공정 거래행위금지에 대한 특별법적 성격을 갖는 것으로서 양자가 경합할 경우 원칙적으로 전자가 우선적용 되어야 하며, 나아가 지원효과의 직$\cdot$간접성을 기준으로 지원행위 여부를 가리는 것은 지나치게 자의적인 것으로서 규제의 예측가능성을 더욱 저해하고, 수범자의 탈법행위를 용이하게 할 수 있다. 다만, 계열회사간 지원행위는 경제적 효율성을 수반할 수 있고 그 자체가 경쟁질서를 위협하는 것은 아니라는 점에서, 지원성 거래는 가능한 폭넓게 인정하되 그에 따른 부당성 내지 공정거래 저해성 판단에 신중을 기하는 방향으로 관련 조항을 해석하는 것이 바람직하다.

• Korean journal of communication and information
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• v.40
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• pp.321-348
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• 2007

This paper studies how 2006 German World cup game gave World cup-aftermath to Korean people living in Korea. In order to study, the time exposure to soccer matches like Korea vs. Togo, Korea vs. Swiss, and Korea vs. France respectively was analyzed. Additionally, in order to evaluate media effect, respondents' demographics, and preference toward sports were controlled using a hierarchial regression method. Based on the results, exposure to radio was statistically significant to Koreans' indirect aftermath.

• Journal of the Korea Society of Computer and Information
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• v.26 no.4
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• pp.197-202
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• 2021

The main purpose of this study is to check whether the family relationship of adolescents has an impact on smartphone addiction and to verify of direct effects and moderating effects in according to self-efficacy. The survey was conducted to the adolescents who were second grade middle school students with 318 subjects in G metropolitan city. This study results found the followings: Family relationship and selfe-efficacy revealed direct influence on smartphone addiction. Moreover, the self-efficacy check the moderating effect of do family relationship on smartphone addiction. The results of this study are significant in that they demonstrated the influence of family relationship and self-effect on smartphone addiction and imply that self-efficacy can decrease or prevent smartphone addiction from family relationship problem.

• Journal of Venture Innovation
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• v.5 no.1
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• pp.129-143
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• 2022

The purpose of this study is to examine the mediating effect of perception of society and evaluation of oneself in the relationship between self-compassion and life satisfaction. A survey was conducted on 215 full-time workers along with self-compassion scales, life satisfaction scales, social well-being and core self-evaluation. As a result of the study, social well-being and core self-evaluation completely mediated the relationship between self-compassion and life satisfaction, and the difference of indirect effects between social well-being and core self-evaluation was not significant. These results show that the effect of self-compassion improving life satisfaction can be explained through social well-being and core self-evaluation. The implications and limitations of this study for future research were discussed.

• Korean Journal of Social Welfare
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• v.60 no.4
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• pp.175-203
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• 2008

It has been well known and empirically supported that many persons with psychiatric disabilities experience recovery in the community. The sense of recovery is experienced while they recognize and manage mental illness and cope with everyday life utilizing personal and social resources. In order to explore ways in which the sense of recovery is enhanced, this study investigated the structure of relationships among the mental health state, optimism, positive emotions, quantity and quality of the social relationships, coping, and recovery of 460 persons with psychiatric disabilities through structural equation modeling. Of findings, first, in the results of path estimates of measurement and theoretical model, especially optimism and positive emotions demonstrated significant effects on the social relationship, coping, and the recovery, while, by contraries, positive emotions showed no significant direct effects on coping, neither the social relationships did on the recovery. Second, on the recovery optimism and positive emotions had direct effects, while quantity and quality of the social relationships had only indirect effects. It is particularly noted that positive emotions showed stronger effects on the recovery than optimism, and also had direct and indirect effects on the social relationships. Finally, partial mediating effects of coping were found between optimism and the recovery, between quality of the social relationships and recovery, and between quantity and quality of the social relationships; another partial mediating effects of quality of social relationships between quantity of social relationships and coping, and between positive emotions and coping; and the last same effects of quantity of the social relationships between positive emotions and coping. According to these results, discussions and implications for social work practice and practice research were suggested regarding the differential effects of positive cognitions and emotions on the recovery and different mechanisms of the quality and quantity of the social relationships, and the relationships among the resources, coping, and the recovery of persons with psychiatric disabilities.

• 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.