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시흥·안산 산단 및 영향지역의 휘발성유기화합물질(VOCs) 분포 특성
김동기(Dong-Gi Kim),우정식(Jung-Sik Woo),한현수(Hyun-Su Han),김용준(Yong-Jun Kim),김웅수(Woong-Soo Kim),홍순모(Soon-Mo Hong),김종수(Jong-Soo Kim),윤미혜(Mi-Hye Yoon) 한국환경보건학회 2020 한국환경보건학회지 Vol.46 No.3
Objectives: The concentrations and distribution characteristics of volatile organic compounds (VOCs) in an industrial complex and surrouding affected residential areas were investigated in an effort to support the efficient management of VOCs. Methods: The atmospheric concentrations of VOCs were analyzed at sites around the Sihwa-Banwol complex located in the cities of Siheung and Ansan and in the surrounding affected residential areas. The appearance of VOCs and the characteristics of their temporal and spatial distribution were evaluated. Results: The total VOC concentrations in the industrial complex were detected at 1.9-2.3 times higher than in the affected areas, but the daily VOCs distributions showed similar patterns in both sites. In particular, it was confirmed that the composition ratio of the VOCs and concentration fluctuations over time in the affected areas are similar to those in the adjacent industrial complex. VOC levels in the affected areas were higher than in residential areas in cities without an industrial complex. Conclusions: VOCs in residential areas near an industrial complex were highly distributed due to the influence of continuous pollutant emissions from the industrial complex. Therefore, the management of VOCs in the atmosphere of the affected area is important for identifying and managing the sources of VOCs detected in high concentrations in the industrial complex.
원종무(Jong-Moo Won),변주형(Joo-Hyeong Byun),김웅수(Woong-Soo Kim),김은아(Eun-Ah Kim),김문정(Mun-Jeong Kim),한송희,최윤호(Yun-Ho Choi),조의호(Ui-Ho Jo),김종수(Jong-Su Kim) 한국환경보건학회 2018 한국환경보건학회지 Vol.44 No.4
Objectives: This study was performed to determine environmental hazard factors and provide more eco-friendly child activity spaces within children’s playgrounds installed in Gyeonggi-do Province. Methods: Basic (XRF) and precise (ICP, UV) inspections were conducted. The test items examined were heavy metals and parasite eggs. As a sampling point, painted finish materials (180), synthetic rubber (50), and sand (50) were selected. Results: The total excess rate of heavy metals in the XRF was found to be 7.4% (17/230 points). In a comparison between the basic and precise inspections with 17 excess points, the concentration deviation between the two tests was found to be from 0.01 to 7.7 times, resulting in a large difference. Furthermore, all the excess samples were dual samples. However, the contribution rates of Pb and Cr to combined concentration were found to be 85.1 and 14.9% for basic inspection and 91.9 and 8.1% for precise inspections, so there is a similar tendency between the two tests. The excess rate of parasite eggs in sand was expressed at 6%. The excess rate of heavy metals in synthetic rubber was found to be 0%. Conclusion: The reliability of the XRF is low. However, considering the contribution rate of Pb and Cr between the two tests, it is likely to be applicable for screening. Dual samples provided high concentrations and excess samples and care should be taken when managing them.
다중 센서에 의한 다중 지상 표적 추적시 지형 정보가 미치는 영향
김인택,이응기,김웅수 한국항행학회 1998 韓國航行學會論文誌 Vol.2 No.1
본 논문에서는 다중 센서를 사용하는 센서 융합 환경에서 지형 정보의 사용이 다중 지상 표적 추적 성능에 어떠한 영향을 미치는가를 조사하였다. 지형 정보의 사용을 연계시와 표적의 발생을 제한하는 두 가지 경우에 대해 적용하였다. 전자의 경우는 거의 영향이 없었으나 후자의 경우는 오궤적의 수가 줄어드는 긍정적인 결과를 가져왔다. 결론적으로 지형 정보의 사용은 부가적인 센서의 운영으로 간주할 수 있기 때문에 좀 더 조심스러운 지형 정보의 사용이 요구된다. In this paper, we have investigated the effects of geographic information on the performance of multiple ground target tracking system using multiple sensors, Geographic information is utilized in two cases : association and masking target measurement. Virtually no improvement is observed to the overall performance of tracking system when we applied mobility to the association procedure. Masking target measurement based on mobility produces desirable result that the number of false tracks is reduced. Since geographic information can be regarded as an additional sensor in sensor fusion paradigm, careful usage is required.