• Proceedings of The Korean Society of Agricultural and Forest Meteorology Conference
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• 2013.11a
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• pp.37-41
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• 2013

• Proceedings of the Korean Society of Soil and Groundwater Environment Conference
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• 2000.11a
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• pp.221-224
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• 2000

• The Magazine of the Society of Air-Conditioning and Refrigerating Engineers of Korea
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• v.45 no.12
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• pp.70-73
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• 2016

• Proceedings of the Korean Society of Soil and Groundwater Environment Conference
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• 1999.04a
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• pp.37-38
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• 1999

• Journal of the Korean Association of Geographic Information Studies
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• v.27 no.2
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• pp.19-33
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• 2024

CCTV for crime prevention is expanding; however, due to the absence of guidelines for determining installation locations, CCTV is being installed in locations unrelated to areas with frequent crime occurrences. In this study, we developed a CCTV Priority Installation Index and applied it in a case study area. The index consists of crime vulnerability and surveillance vulnerability indexes, calculated using machine learning algorithms to predict crime incident counts per grid and the proportion of unmonitored area per grid. We tested the index in a pilot area and found that utilizing the Viewshed function in CCTV visibility analysis resolved the problem of overestimating surveillance area. Furthermore, applying the index to determine CCTV installation locations effectively improved surveillance coverage. Therefore, the CCTV Priority Installation Index can be utilized as an effective decision-making tool for establishing smart and safe cities.

• Journal of Korean Society of Forest Science
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• v.100 no.1
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• pp.79-87
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• 2011

This study was conducted to identify the relationship between urban heat island effect and forest, analyzing electricity consumption model and temperature change model. Electricity consumption model was adopted to clarify a role of forests in alleviating the heat island effect at the national scale, while temperature change model was adopted to clarify a role of forests in mitigating urban heat island effect on metropolis with using econometric analysis. The analysis results from both models clearly show a negative correlation between the urban forests within living areas and heat island effect. In particular, when urban forests within living area per person increases by $1m^2$, the average municipal electricity consumption decreases by 0.02MWh and the summer daytime temperature for metropolitan cities decreases by $1.15^{\circ}C$.

• Proceedings of the Korea Water Resources Association Conference
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• 2023.05a
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• pp.204-204
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• 2023

2020년 상수도 통계에 따르면 전국 상수도 보급률은 약 99% 정도로 높은 수치를 기록하고 있으나 노후관으로 인한 관로파손 및 수질사고로 인해 효과적인 운영에는 많은 어려움이 존재한다. 이러한 문제를 해결하기 위해 기술진단 및 정밀안전진단 등 체계적인 유지관리 규정이 도입되었으며 적용되고 있으며, 이때 시스템의 정량적인 성능평가를 위해 간접평가와 직접평가로 구성된 점수평가법이 적용되었다. 간접평가는 지중에 매설된 관로를 대상으로 매설연도, 관경, 관로연장 등의 노후도인자를 통해 관의 노후도를 추정하고 간접평가 결과 3등급으로 판명되는 관로의 경우 객관적인 관의 상태를 평가하기 위해 시편채취 및 관로 내시진단 등의 직접평가가 수행된다. 하지만 관로의 직접평가는 간접평가결과 3등급의 모든 관로에 대해 수행하기에는 진단비용 및 시간 등 제약조건에 따라 모든 지점에 대한 직접평가 수행에는 한계가 있다. 따라서, 본 연구에서는 이러한 관로 성능평가 기법의 한계를 개선하기 위해 상수도시스템 통합평가 기술을 개발하였다. 개발한 기술은 머신러닝 기법을 적용하여 간접평가 및 직접평가 결과를 토대로 직접평가가 필요한 지점의 결과를 예측하였다. 이를 바탕으로 상수도시스템 평가성능 향상 및 보강 우선순위 선정 단계에서 의사결정권자의 판단에 도움이 될 것으로 판단된다.

• 대한예방의학회:학술대회논문집
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• 1995.10a
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• pp.143-144
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• 1995

• Proceedings of the Korean Society of Crop Science Conference
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• 2020.06a
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• pp.30-30
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• 2020

• Korean Journal of Fisheries and Aquatic Sciences
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• v.55 no.3
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• pp.284-293
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• 2022

In this study, we aimed to optimize the blending conditions of sunflower oil (A), water (B), and oriental sauce (C) for canned smoked oysters Crassostrea gigas in oriental sauce (SOO). Using response surface methodology (RSM), we found that the optimal independent variables [X₁, A/(B+C); X₂, B/C] based on the salinity (Y₁) amino acid nitrogen content (Y₂), and overall acceptance (Y₃) of high-quality SOO were 48.7% (w/w) for sunflower oil, 25.5% (w/w) for water, and 25.8% (w/w) for oriental sauce. Under optimal conditions, the experimental values of Y₁, Y₂, and Y₃ were 1.68±0.4 g/100 g, 155.4±2.4 mg/100 g, 6.2±0.23 score, respectively, which were not significantly different from the predicted values (P<0.05). The SOO prepared under optimal conditions had a higher overall acceptance than commercial canned smoked oysters. These results suggest that developing canned smoked oysters in oriental sauce can be industrialized, and the product is predicted to be competitive in the global market.