• The Journal of the Korea institute of electronic communication sciences
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• v.15 no.6
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• pp.1195-1200
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• 2020

The DOM (: Digital Optical Method), which measures the turbidity of chimney smoke, is a method of calculating the turbidity by setting the area to be measured and the contrast area using a low-cost digital camera that can be easily obtained. However, it is difficult to measure clouds and white smoke in a cloudy sky. In this paper, we develop a background sky type model that can represent the background sky and classify the type by periodically photographing it with a digital camera to solve this problem. In addition, based on the model, we develop a filter to optimize white smoke image and prove its excellence through experiments.

• Korean Journal of Remote Sensing
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• v.38 no.6_2
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• pp.1677-1689
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• 2022

Air pollution is social issue that has long-term and short-term harmful effect on the health of animals, plants, and environments. Chimneys are the primary source of air pollutants that pollute the atmosphere, so their location and type must be detected and monitored. Power plants and industrial complexes where chimneys emit air pollutants, are much less accessible and have a large site, making direct monitoring cost-inefficient and time-inefficient. As a result, research on detecting chimneys using remote sensing data has recently been conducted. In this study, YOLOv5-based chimney detection model was generated using BUAA-FFPP60 open dataset create for power plants in Hebei Province, Tianjin, and Beijing, China. To improve the detection model's performance, data split and data augmentation techniques were used, and a training strategy was developed for optimal model generation. The model's performance was confirmed using various indicators such as precision and recall, and the model's performance was finally evaluated by comparing it to existing studies using the same dataset.

• The Journal of the Korea institute of electronic communication sciences
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• v.18 no.4
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• pp.661-668
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• 2023

A large amount of fuel is required for heating the agricultural facility house, and many farmhouses are experiencing the burden of heating costs due to the recent increase in fuel prices. This paper proposes a supply system that supports heating of agricultural facility houses located nearby by utilizing industrial chimney waste heat, and analyzes the application and effect of a heating cost reduction model. The system was designed based on the chimney waste heat system, and the facility house heating cost reduction model was applied and effect analysis was performed based on the proposed model. It was confirmed that the high-temperature waste heat from the chimney can be used to supply heating to facility houses in nearby farms. If heating is supplied to large-scale facility houses near industrial complexes, it is expected to contribute to improve productivity and competitiveness of domestic farms.

• Proceedings of the Korean Institute of Information and Commucation Sciences Conference
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• 2014.10a
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• pp.441-444
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• 2014

공장 사업장 등에서 발생되는 매연은 대기오염의 원인이 될 뿐만 아니라 인체에도 나쁜 영향을 미친다. 따라서 대기오염방지를 위해 배출되는 대기오염물질을 측정하고 이를 관리하여 대기오염을 신속히 파악하고 사전에 방지하기 위한 서비스가 필요하다. 본 논문에서는 광학센싱을 이용해 굴뚝연기의 혼탁도를 측정하고 이를 다양한 모바일 운영체제에서 측정결과를 실시간으로 검색할 수 있는 모바일 웹앱을 설계하고 구현한다. 구현된 시스템에서 사용자는 다양한 모바일기기를 이용하여 굴뚝연기의 혼탁도와 VOC 오염도에 대하여 여러 가지 조건으로 검색할 수 있으며 사용자 정의값을 설정하고 이를 초과하는 경우에 지정된 번호로 알림 서비스를 제공 받을 수 있다. 또한 모바일 운영체제에 독립적인 웹앱의 형태로 제공되어 사용자의 다양한 모바일 기기에서 운영될 수 있으며 실시간으로 유지보수를 제공할 수 있는 장점이 있다.

• 보일러설비
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• s.9
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• pp.70-72
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• 1989

• 보일러설비
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• s.10
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• pp.74-76
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• 1989

• 건강소식
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• v.34 no.11
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• pp.38-39
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• 2010

옛날 유럽에서는 굴뚝 청소부의 음낭에서 암이 자주 발생했다. 1775년 영구의 의사 포트는 음낭암에 대해 이런 보고를 했다. 굴뚝 청소 중에 그을음이 음낭의 주름에 끼어 암이 발생한다고. 암을 연구하던 의사와 과학자들은 피부에 타르를 바르면 인공적으로 암을 발생시킬 수 있을 것이라고 생각했기 때문이다. 이렇게 다소 허무맹랑하게 암에 대한 접근이 시작된 지 200여년이 지났지만 암은 여전히 정복대상이다. 암에 대한 연구로 암에 대해서 한 걸음 다가갈 수 있는 계기를 만들었던 암 개척자들을 알아본다.

• Proceedings of the Korea Air Pollution Research Association Conference
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• 2008.10a
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• pp.192-193
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• 2008

• Proceedings of the Korea Air Pollution Research Association Conference
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• 2007.10a
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• pp.224-225
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• 2007

• Proceedings of the Korea Air Pollution Research Association Conference
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• 2007.10a
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• pp.427-428
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• 2007