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School Life Adjustment and Satisfaction of Children
Kim Yong-min(김용민),Kim Kye-uk(김계욱),Yang Ju-seung(양주승),Baek Sang-wook(백상욱) 한국공공사회학회 2018 공공사회연구 Vol.8 No.4
본 연구에서는 자아존중감이 학교생활적응과 학교생활만족도와의 관계에서 매개역할을 하고 있는지를 검증하는 것을 목적으로 한다. 본 연구의 대상은 광주광역시 소재 초등학교 5, 6학년학생을 대상으로 설문지를 수집 분석하고 있다. 본 연구의 분석방법은 다음과 같다. 모형의 적합성을 분석하기 위해 변수의 구성타당도와 판별타당도를 분석하였다. 또한 가설 검증을 위해 회귀분석을 하였다. 자아존중감의 매개효과를 검증하기 위해서 barn & Kenny의 방법과 sobel 테스트를 하여 3단계 매개효과분석의 한계를 보완하였다. 본 연구의 결과는 다음과 같다. 첫째, 친구적응, 교사 적응, 수업적응과 같은 학교 적응의 하위변수가 학교생활만족도에 영향을 미치는 것으로 나타났다. 둘째, 학교적응, 친구적응, 수업적응의 하위변수가 자아존중감에 영향을 미치는 것으로 나타났다. 셋째, 자아존중감은 학교생활만족도에 영향을 미치는 것으로 나타났다. 넷째, 자아존중감이 학교생활적응과 학교생활만족도와의 관계에서 부분매개역할을 하고 있는 것으로 나타났다. The purpose of this study is to verify whether self-esteem is mediated effect in school life adjustment and school life satisfaction. The subjects of this study were distributed and collected questionnaires to elementary school 5th and 6th grade students in Gwangju Metropolitan City. The analysis method of this study is as follows. The construct validity and discriminant validity of the variables were analyzed to analyze the fit of the model. Also, regression analysis was conducted for hypothesis verification. In order to test the mediated effects of self-esteem, we analyzed the barn & Kenny’s method and the Sobel test to supplement the limitations of the three-step mediated effect analysis. The results of this study are as follows. First, it was found that the sub-variables of school adjustment, such as friend adjustment, teacher adjustment, and class adjustment, had an affect on school life satisfaction. Second, it was found that the sub-variables of school adjustment, friend adjustment and class adjustment, affect self-esteem. On the other hand, teacher adjustment did not affect self-esteem. Third, self-esteem affects school life satisfaction. Fourth, self-esteem plays a partial mediated effect in relation to school life adjustment and school life satisfaction.
김진용(Jin Yong Kim),나병철(Byung Chul Na),박승욱(Seung Uk Park),서준호(Joon Ho Seo),이계철(Kye Cheul Lee) 한국자동차공학회 2005 한국자동차공학회 춘 추계 학술대회 논문집 Vol.2005 No.11_1
LPI fuel filter has a high reliability related component that has direct influence on performance, safety, and durability of engines. Even under mileage 10,000㎞, the current LPI fuel filters can lead to sudden engine stop, engine control problem, and engine stat problem. In oder to lower the chocking problem, an external type LPI fuel filter is developed for wider filtration area and increased collection volume. Because of the tight requirement of the reliability, various evaluation technologies are developed. The evaluation technologies include gas tight test, different pressure test, vibration test, filtration test, pressure test, static electricity test, fuel corrosion test, etc.
Jieun Lee,HyoJin Kim,Yong Uk Kye,Dong Yeon Lee,Wol Soon Jo,Chang Geun Lee,Jeung Kee Kim,Jeong-Hwa Baek,Yeong-Rok Kang Korean Nuclear Society 2023 Nuclear Engineering and Technology Vol.55 No.7
The radioactivity concentration of environmental radionuclides was analyzed for soil and sand at eight locations within a radius of 255 m centered on the Dongnam Institute of Radiological & Medical Science (DIRAMS), Korea. The average activity concentrations of <sup>40</sup>K, <sup>137</sup>Cs, <sup>226</sup>Ra, and <sup>232</sup>Th were 661.1 Bq/kg-dry, 0.9 Bq/kg-dry, 21.9 Bq/kg-dry, and 11.1 Bq/kg-dry, respectively. The activity of <sup>40</sup>K and <sup>137</sup>Cs was lower than the 3-year (2017-2019) average reported by the Korea Institute of Nuclear Safety, respectively. Due to the nature of granite-rich soil, the radioactivity of <sup>40</sup>K was 0.6-fold higher than in other countries, while <sup>137</sup>Cs was in the normal fluctuation range (15-30 Bq/kg-dry) of the concentration of radioactive fallout from nuclear tests. The activity of <sup>226</sup>Ra and <sup>232</sup>Th was lower than in Korean soils reported by the United Nations Scientific Committee on the Effects of Atomic Radiation (UNSCEAR). The average activity concentrations of <sup>232</sup>Th and <sup>40</sup>K for the soil and sand samples from DIRAMS were within the range specified by UNSCEAR in 2000. The radium equivalent activity and internal and external hazard index values were below the recommended limits (1 mSv/y). These radionuclide concentration (<sup>226</sup>Ra, <sup>232</sup>Th, <sup>40</sup>K, and <sup>137</sup>Cs) data can be used for regional environmental monitoring and ecological impact assessments of nuclear power plant accidents.