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2009 개정 교육과정에 따른 5, 6학년 초등과학과 교사용 지도서에 제시된 발문 유형 분석
김경아 ( Gyeong Ah Kim ),이형철 ( Hyeong Cheol Lee ) 한국초등과학교육학회 2016 초등과학교육 Vol.35 No.1
The purpose of this study was to analyze question`s patterns in elementary school science teacher`s guide books of 5, 6th grade under the 2009 revised curriculum. A modified analysis framework based on Blosser`s classified system was used to analyze 1,982 questions extracted from elementary science teacher`s guide books by grade, by domain, and by teaching and learning stage. The findings of this study were as follows. First, of the 1,982 questions, the most prominent type of question was the propositional question and the following was the reproductive question. And, in comparing the question`s patterns between 5, 6th grade, it was found that 6th grade had higher rate of close typed question, while 5th grade had higher rate of open typed question in its curriculum. Secondly, a comparative study about two domains, material and energy science domain and earth and life science domain, showed that the number of questions of each domain was not much different. However, it was found that propositional questions and applicable questions showed a higher rate in material and energy science domain, and anticipated questions and open typed questions including divergent and evaluative question showed higher rate in earth and life science domain. Moreover, although the total number of questions from integration and my fun research domain`s contents was small, the rate of open typed questions was higher than any other domains. Finally, as a result of comparing and analyzing question`s pattern in teaching and learning stages, the rate of reproductive question and anticipated questions was high at the stage of introduction. At the stage of development, the rate of propositional and reproductive questions was high. At the stage of conclusion, the rate of synthetic and applicable questions was high.
지붕 색상 변화에 따른 건축물의 열환경 및 쿨루프 적용가능성 분석
김경아(Kim, Gyeong-Ah),최정민(Choi, Jeong-Min),박경훈(Park, Kyung-Hun) 한국건축친환경설비학회 2016 한국건축친환경설비학회 논문집 Vol.10 No.6
In this study, we compared the temperature in models with four different roof types: model A(green roof), B(white colored roof) , C(green colored roof), and D(black colored roof) using the simulation. During both summer and winter, the roof surface outside temperature was found to be the lowest on the model B in the daytime and the nighttime, whereas the model A had the highest temperature in the nighttime. The zone mean air temperature was the lowest on the model A and highest on model D in the summer daytime. During winter, the model B was found to have the lowest temperature. The model A and D had the highest temperature in the nighttime and daytime, respectively. This indicates that the use of model B as cool roofs in Korea could reduce building temperatures in the summer.
UAV 열적외 영상을 활용한 피복재질별 표면온도 특성 분석
송봉근 ( Bong-geun Song ),김경아 ( Gyeong-ah Kim ),서경호 ( Kyeong-ho Seo ),이승원 ( Seung-won Lee ),박경훈 ( Kyung-hun Park ) 한국지리정보학회 2018 한국지리정보학회지 Vol.21 No.3
The purpose of this study was to analyze the surface temperature of surface fabrics using UAV TIR images, to mitigate problems in the thermal environment of urban areas. Surface temperature values derived from UAV images were compared with those measured in-situ during the similar period as when the images were taken. The difference in the in-situ measured and UAV image derived surface temperatures is the highest for gray colored concrete roof fabrics, at 17℃, and urethane fabrics show the lowest difference, at 0.3℃. The experiment power of the scatter plot of in-situ measured and UAV image derived surface temperatures was 63.75%, indicating that the correlation between the two is high. The surface fabrics with high temperature are metal roofs(48.9℃), urethane(43.4℃), and gray colored concrete roofs(42.9℃), and those with low temperature are barren land(30.2℃), area with trees and lawns(30.2℃), and white colored concrete roofs(34.9℃). These results show that accurate analysis of the thermal characteristics of surface fabrics is possible using UAV images. In future, it will be necessary to increase the usability of UAV images via comparison with in-situ data and linkage to satellite imagery.