• Journal of Environmental Impact Assessment
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• v.31 no.5
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• pp.321-333
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• 2022

In this study, the concentration and distribution characteristics of BTEX (benzene toluene, ethylbenzene, and xylene) emitted from Daesan Petrochemical Industrial Complex were examined to determine their potential hazards to local residents. Residents living nearby the complex areas may be exposed to the chemicals through various media (air, water, and soil), especially by air. This study evaluated human health risks by inhalation using both deterministic and probabilistic risk assessment approaches. As a result of the deterministic risk assessment, the non-cancer risk was much lower than the regulation limit of hazard index (HI 1.0) for all the points. However, in case of cancer risk evaluation, it was found that the risk of excess cancer for benzene at point A located in the industrial complex was 2.28×10^-6, which slightly exceeded the standard regulatory limit of 1.0×10^-6. In addition, the probabilistic risk assessment revealed that the percentile exceeding the standard of 1.0×10^-6was found to be 45.3%. The sensitivity analysis showed that exposure time (ET) had the greatest impact on the results. Based on the risk assessment study, it implied that ethylbenzene, toluene, and xylene had little adverse effects on potential human exposure, but benzene often exceeded the cancer risk standard (1.0×10^-6). Further studies on extensive VOCs monitoring are needed to evaluate the potential risks of industrial complex areas.

• The Journal of the Korea institute of electronic communication sciences
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• v.19 no.1
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• pp.65-76
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• 2024

With the recent activation of the offshore wind power industry, there has been a development of power plants with a scale exceeding 400MW, comparable to traditional thermal power plants. Renewable energy, characterized by intermittency depending on the energy source, is a prominent feature of modern renewable power generation facilities, which are structured based on controllable inverter technology. As the integration of renewable energy sources into the grid expands, the grid codes for power system connection are progressively becoming more defined, leading to active discussions and evaluations in this area. In this paper, we propose a method for selecting optimal reactive power compensation capacity when multiple offshore wind farms are integrated and connected through a shared interconnection facility to comply with grid codes. Based on the requirements of the grid code, we analyze the reactive power compensation and excessive stability of the 400MW wind power generation site under development in the southwest sea of Jeonbuk. This analysis involves constructing a generation site database using PSS/E (Power System Simulation for Engineering), incorporating turbine layouts and cable data. The study calculates reactive power due to charging current in internal and external network cables and determines the reactive power compensation capacity at the interconnection point. Additionally, static and dynamic stability assessments are conducted by integrating with the power system database.

• 전기의세계
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• v.42 no.4
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• pp.53-62
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• 1993

지중배전설비는 신도시 개발, 도심 고층빌딩의 활발한 신증축, 아파트단지 건설의 활기 등으로 계속 증가될 것으로 전망되며, 아울러 경제성장과 국민생활 향상에 따라 고품질 전력 요구는 필연적이며, 또한 지중화 요구도 증대되리라 본다. 지중설비 증가와 아울러 지중케이블 고장은 설비 특성상 장시간 광역정전의 우려가 있는 점을 감안하여 고품질 전력케이블의 기술개발에 끊임없는 연구가 있어야 할 것으로 본다.

• The Hankook-Saengyark Bo
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• no.242
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• pp.2-2
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• 2000

각종 국제행사 맞아 '세계속 경동약령시로' - 중국, 한약재 전략산업화 적극 추진(사천성에 2백만평 규모 종합단지 조성 계획) - 한$\cdot$중 공동 심포지움 개최(한국약용작물학회) - '홍삼, 다이어트에 좋아요' 인삼연 제품개발, 부작용 적어

• Proceedings of the Korean Society of Crop Science Conference
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• 2017.10a
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• pp.156-156
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• 2017

• Proceedings of the Korea Air Pollution Research Association Conference
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• 2008.10a
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• pp.375-376
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• 2008

• Proceedings of the Korea Air Pollution Research Association Conference
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• 2010.04a
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• pp.344-345
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• 2010

• Proceedings of the Korean Institute of Landscape Architecture Conference
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• 2014.03a
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• pp.68-69
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• 2014

• 종축개량
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• v.12 no.5 s.75
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• pp.98-100
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• 2007

더 큰 세상, 더 큰 미래를 향하여 열린 교육을 실시하고 있는 수도권에 위치한 경기도 유일의 4년제 국립대학, 평택항과 산업단지 개발등 새로 열리는 서해안 시대의 배후지역이라는 지역성 특성을 확보하고 고도의 생명정보 첨단사회가 요구하는 전문 인력 양성을 위해 심혈을 기울이고 있는 한경대학교 최일신 총장. 그의 축산에 대한 견해와 교육방침 등을 들어 보았다.

• Environmental engineer
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• s.174
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• pp.22-26
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• 2001

(1) 토양오염의 특성과 현황 - 토양오염은 지하에서 일어나는 오염문제이므로 눈으로 직접 확인하기가 어려울 뿐만 아니라 한번 오염되면 복원을 위해서 많은 시간과 경제적 노력이 필요함 - 우리나라에서는 폐광지대 그리고 공업단지 내 유류 저장시설 주변 토양이 중금속과 유기화합물로 심각하게 오염되어 있는 것으로 나타남 (2) 오염토양 정화기술의 분류와 주요기술 - 오염토양 정화기술은 크게 비원위치 기술과 원위치 기술로 분류되며 각각 물리적, 화학적, 생물학적