http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
초등학교돌봄교실아동과 일반아동의 새둥지화에 나타난 또래관계 연구
이민서(Lee, Min Seo),정영인(Chung, Young In) 한국미술교육학회 2021 美術敎育論叢 Vol.35 No.3
This study was designed to investigate characteristics of response and peer relations revealed in bird’s nest drawings of elementary childcare class children and general children and the possibility of using bird’s nest drawings as to be able to investigate peer relations. 116 elementary childcare class children and 154 general children, in a total of 270 children in Gyeonggi-do were targeted for this study. As instruments to investigate study, bird’s nest drawing tests and peer relation questionnaires were used for processing the data collected, t-test, cross tabulation analysis and one-way ANOVA. After that, Scheff-test was carried out. The study results are summarized as follows. First, as a result of analysis of peer relations between the two groups, there were significant differences in the initiative in punishment and confrontation. Second, analysis of characteristics of response in bird’s nest drawings between two groups showed statistically significant differences in 12 indicators. Third, in consequence of characteristics of response to peer relations in bird’s nest drawings, there were significant discrepancy into 4 indicators. For all of these reasons, bird’s nest drawings can serve as instruments to comprehend peer relations in school or any educational institute. 본 연구는 초등학교돌봄아동과 일반아동의 새둥지화에 나타난 반응특성과 또래관계를 통하여 새둥지화가 또래관계를 파악할 수 있는 검사도구로서의 활용 가능성을 알아보고자 하였다. 이를 위해 경기도 소재의 돌봄아동 116명과 일반아동 154명, 총 270명을 연구대상으로 하였다. 검사도구로는 새둥지화와 또래관계 검사지, 자료분석은 t검정, 교차분석, 일원변량분석과 사후검정으로 Scheff-test를 실시하였다. 연구 결과는 첫째, 두 집단 간 또래관계 분석 결과 처벌주도권과 대립에서 유의미한 차이를 보였다. 둘째, 두 집단 간 새둥지화 반응특성 분석 결과 12개의 지표에서 통계적으로 유의미한 차이를 나타냈다. 셋째, 새둥지화에 나타난 또래관계 반응특성 결과 4개의 지표에서 유의미한 차이를 보였다. 따라서 새둥지화가 학교 등의 교육현장에서 또래관계를 파악할 수 있는 유용한 검사도구로서의 활용 가능성을 제시하였다.
ZnSe 나노분말 합성에 미치는 환원제와 첨가제의 영향
백금지,이다경,이민서,송하연,홍현선,Back, Geum Ji,Lee, Da Gyeong,Lee, Min Seo,Song, Ha Yeon,Hong, Hyun Seon 한국분말야금학회 2020 한국분말재료학회지 (KPMI) Vol.27 No.3
Nano-sized ZnSe particles are successfully synthesized in an aqueous solution at room temperature using sodium borohydride (NaBH<sub>4</sub>) and thioglycolic acid (TGA) as the reducing agent and stabilizer, respectively. The effects of the mass ratio of the reducing agent to Se, stabilizer concentration, and stirring time on the synthesis of the ZnSe nanoparticles are evaluated. The light absorption/emission properties of the synthesized nanoparticles are characterized using ultraviolet-visible (UV-vis) spectroscopy, photoluminescence (PL) spectroscopy, and particle size analyzer (PSA) techniques. At least one mass ratio (NaBH4/Se) of the reducing agent should be added to produce ZnSe nanoparticles finer than 10 nm and to absorb UV-vis light shorter than the ZnSe bulk absorption wavelength of 460 nm. As the ratio of the reducing agent increases, the absorption wavelengths in the UV-vis curves are blue-shifted. Stirring in the atmosphere acts as a deterrent to the reduction reaction and formation of nanoparticles, but if not stirred in the atmosphere, the result is on par with synthesis in a nitrogen atmosphere. The stabilizer, TGA, has an impact on the Zn precursor synthesis. The fabricated nanoparticles exhibit excellent photo-absorption/discharge characteristics, suggesting that ZnSe nanoparticles can be alloyed without the need for organic solutions or high-temperature environments.