• The Magazine of the Society of Air-Conditioning and Refrigerating Engineers of Korea
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• v.8 no.3
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• pp.158-164
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• 1979

1979년 8월 9일 축파연구학원도시를 견학할 기회를 가졌으며, 동경상야역에서 오전 9시 출발, 전차로 약 50분 토포역에 도착 택시로서 본 연구학원도시에 이르렀으며, 그 규모와 관발과정을 다음과 같이 전하고자 한다. 오후 5시까지 연구학원도시내의 각 시설물을 될 수 있는대로 많이 보려고 노력하였으나 워낙 방대한 시설로서 결국은 그 일부를 본것에 지나지 않음을 유감으로 생각한다. 이러한 새로운 도시를 건설하는데 있어서 계획의 진행, 움직이는 조직 기구, 연차계획 등은 참고가 될 것으로 본다.

• The Science & Technology
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• v.6 no.7 s.50
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• pp.5-6
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• 1973

정부는 충남 대덕군 유성 탄동 구즉면 일대에 인구 5만을 수용하는 7백만평 규모의 연구학원도시를 건립키로 확정발표했다. 지난 6월 26일 과학기술처가 발표한 연구학원도시 건립계획에 의하면 이 도시는 대전 서북쪽 8km 지점에 위치하며 산업기술개발을 위한 선박연구소 주물기술센터, 정밀기계 센터, 정밀기계 설계 및 가공센터, 해양개발연구소 등 5대 연구기관을 비롯, 서울시에서 이전이 불가능한 12개 국립연구기관을 중심으로 건설될 뿐아니라 충남대학교도 옮겨 건설되는 방대한 규모로 74년부터 8년에 걸쳐 완성, 76년부터는 연구활동을 시작할 수 있게 된다. 과학기술처가 발표한 연구학원도시건설계획은 다음과 같다.

• Journal of Environmental Science International
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• v.31 no.12
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• pp.1013-1025
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• 2022

This study was carried out to analyze water cycle characteristics and evaluate water retention function in Jeju Gotjawal forest from 2013 to 2017. The average ratio of throughfall, stemflow, interception loss in Seonhul Gotjawal (SH) and Cheongsu Gotjawal (CS) was 43.1%, 15.8%, and 41.1%, respectively. Rainfall-throughfall, rainfall-stemflow, and rainfall-interception loss were expressed as linear regression equation (p<0.001). The comparison results showed that SH was higher than CS (p<0.05), indicating that the canopy area had an important effect on the difference in stand structure. The average water resources retention rate of the Gotjawal region was 41.9%, which is similar to the total water resources retention rate (40.6%) of Jeju Special Self-Governing Province (JSSGP). Currently, the development of Gotjawal is in progress in JSSGP. The development of Gotjawal will lead to a decrease in the water resources retention rate due to changes in the surface environment such as an increase in impervious areas, which will affect the total groundwater content of JSSGP. Therefore, the conservation of the Gotjawal area is judged to be very important from the point of view of water conservation.

• Journal of Korean Society on Water Environment
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• v.38 no.5
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• pp.220-230
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• 2022

Seasonal variability of water quality in the upland headwater streams in ten forested catchments (37.0~209.0 ha) was examined from April to November 2021. Here, seven physicochemical parameters were analyzed including pH, electrical conductivity (EC), biochemical oxygen demand (BOD), chemical oxygen demand (COD), total nitrogen (T-N), total phosphorous (T-P), and BOD/TOC. The parameters were compared with those of lowerland rivers as middle and lower reaches within a watershed. The pH showed was low (6.4~6.9) during all the seasons, however, BOD and BOD/TOC in the fall season were 2-fold higher than in the spring and summer seasons. Based on environmental standards, the water quality level revealed that the upland headwater streams maintained the purity and cleanliness of water except for pH in the summer season. BOD/TOC of all the seasons and BOD of the fall season in the upland headwater streams were higher than that in the lowerland rivers, whereas the rest of the physicochemical parameters in the upland headwater streams were lower than that in the lowerland rivers. Additionally, the water quality level maintained the purity and cleanliness of water as "Good" in two reaches. The unique aspects of our study design enabled us to draw inferences about water quality characteristics with temporal and spatial analysis in upland headwater streams. This design will be useful for the long-term strategy of effective water quality management for integrated upland headwater streams and lowerland rivers within a watershed.

• Water for future
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• v.56 no.8
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• pp.48-57
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• 2023

• Science & Technology Policy
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• v.1 no.5 s.5
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• pp.12-12
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• 1991

• 방재와보험
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• s.15
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• pp.54-59
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• 1981

• Proceedings of The Korean Society of Agricultural and Forest Meteorology Conference
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• 2019.08a
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• pp.230-231
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• 2019

• Journal of the Korean earth science society
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• v.42 no.2
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• pp.135-148
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• 2021

The purpose of this study was to evaluate the urban heat island (UHI) intensity and the corresponding surface temperature forecast obtained using the local data assimilation and prediction system (LDAPS) of the Korea Meteorological Administration (KMA) against the AWS observation. The observed UHI intensity in Seoul increases during spring and winter, while it decreases during summer. It is found that the diurnal variability of the UHI intensity peaks at dawn but reaches a minimum in the afternoon. The LDAPS overestimates the UHI intensity in summer but underestimates it in winter. In particular, the model tends to overestimate the UHI intensity during the daytime in summer but underestimate it during the nighttime in winter. Moreover, surface temperature errors decrease in summer but increase in winter. The underestimation of the winter UHI intensity appears to be associated with weak forecasting of urban temperature in winter. However, the overestimated summer UHI intensity results from the underestimation of the suburban temperature forecast in summer. In order to improve the predictability of the UHI intensity, an urban canopy model (MORUSES) that considers urban effects was combined with LDAPS and used for simulation for the summer of 2017. The surface temperature forecast for the city was improved significantly by adopting MORUSES, and there were remarkable improvements in urban surface temperature morning forecasts. The urban canopy model produced an improvement effect that weakened the intensity of the UHI, which showed an overestimation during summer.

• The Science & Technology
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• v.7 no.4 s.59
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• pp.8-9
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• 1974