• Proceedings of the Korea Contents Association Conference
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• 2019.05a
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• pp.433-434
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• 2019

전 세계적으로 돌발적인 인공 재해로 인해 많은 인명 피해가 발생하고 있다. 이러한 재해는 발 빠른 대피가 중요하며 신속한 대피를 위해서는 재해 발생 여부를 빠르게 감지해야 한다. 본 논문에서는 공공장소에서 화재, 테러 등의 재해 발생 여부를 신속하게 파악하기 위해 재난 탐지 모델을 제안하였다. 스마트 폰에 내장되어있는 가속도 센서를 이용하여 평상시 상황과 재해 발생시 인간 행동에 대한 데이터를 얻고, 제안한 LSTM 딥러닝 모델을 통해 재난 발생을 즉시 감지 할 수 있다는 것을 확인하였다.

• 정보화사회
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• s.131
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• pp.39-42
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• 1999

• TTA Journal
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• s.81
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• pp.66-72
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• 2002

• 대학교육
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• s.143
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• pp.80-82
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• 2006

• Bulletin of Korea Environmental Preservation Association
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• s.382
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• pp.32-35
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• 2009

• TTA Journal
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• s.169
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• pp.20-24
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• 2017

• Water for future
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• v.30 no.2
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• pp.62-66
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• 1997

• 사료
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• s.31
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• pp.28-34
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• 2008

• Economic and Environmental Geology
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• v.36 no.1
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• pp.17-25
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• 2003

Researches were carried out to investigate the characteristics and concentration of heavy metal elements of stream water through Dongmyoung abandoned metal mine and soil adjacent to the mine. The pH range of water was 5.9∼7.1 that implies the water environment was acidic to neutral. The contents and distribution aspects of heavy metals in water samples varied with geochemical characteristics of element, but the concentration of heavy metals has the tendency of increase closer to the mine in general. The results of soil analysis show that total heavy metal concentration of agricultural soil near mine was far lower than those of ore tailing and dumping site. Therefore, the effects of the abandoned mine on stream water and agricultural products were supposed to be insignificant, particularly because the portion of absorbed carbonates and reducible fractions among total heavy metal concentration was relatively lower than the other. Since, however total heavy metal concentrations of mining site were relatively higher than those of adjacent region, there is a possibility of heavy metal difussion when the chemical environment of the site changes due to migration of surface and underground water. It is suggested that the preventive measures for water and soil pollution by the heavy metals would be considered around the region.

• Journal of the Korea Institute of Information and Communication Engineering
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• v.11 no.6
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• pp.1141-1149
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• 2007

This paper describes two major techniques; image processing and gas vent insert and rejection control, for efficient gas vent exchange and holes detecting on the shoes mold. The key idea is to detect holes on the mold to select which holes to insert and to reject automatically guide center of hole's position. This allows us to save labor time while minimizing defective rate of PU shoes mold forming and production costs for gas vent exchange such as insertion and rejection.. Our experimental results have demonstrated that the hole's detection and gasvent exchange mechanism are more efficient and provide accurate mechanism to mitigate risks of vent injection/rejection failures.