• Title/Summary/Keyword: environment investigation

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MTBE에 의한 지하수 오염

  • 조종수
    • Proceedings of the Korean Society of Soil and Groundwater Environment Conference
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    • 2001.09a
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    • pp.9-12
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    • 2001
  • MTBE is a gasoline additive which is widely used in the world. Its use on the air pollution reduction has been proved very effective, but has generated serious problems of groundwater contamination. Its use will be banned gradually by US EPA and other states governments in US. In Korea, it has been used since 1987 and its consumption reaches about 700, 000 tons/year. Any problems related to the groundwater contamination has not been reported in Korea, yet due to the lack of investigation. In this presentation, I raise the MTBE problems with examples of MTBE contaminations in the US.

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Investigation into circulation of ground water by air sparging (Air sparging에 의한 지하수 순환에 관한 연구)

  • 이준희;강구영
    • Proceedings of the Korean Society of Soil and Groundwater Environment Conference
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    • 1998.11a
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    • pp.232-235
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    • 1998
  • Air sparging system is a kind of in-situ bioremediation method in the contaminated ground water. When Air sparging, the both of water circulation and oxygen transfer happend in the same time. The hydraulic differential head is zero at the middle height of well, is negative below the height and is possitive above the height. Hydroraulic head gradient is proportioned to air superficial velocity in the well. But over 24m/min of the superficial velocity, the hydraulic head gradient increase little.

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Present State Investigation and Analysis of Cladding System in High rise Residential Buildings (초고층 주거건물 외피시스템의 현황조사 및 분석)

  • Seok Ho-Tae;Kwak Hyun-Chul;Song Seung-Yeong
    • Journal of the Korean housing association
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    • v.15 no.5
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    • pp.43-50
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    • 2004
  • As residential buildings becomes high rise buildings, the new cladding system was needed for structure system, and unpredictable problems were found in it. The aim of this study is to analysis the present state and find improvement of indoor environment in high rise residential building, which used curtain wall system. Then, suggest to create comfortable indoor environment for high rise residential buildings in the process of design.

Investigation and Improvement of the Preservation Environment for Paper Records (종이기록물 보존환경의 현단계와 개선 방안)

  • 손혜경
    • Journal of Korean Library and Information Science Society
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    • v.31 no.3
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    • pp.213-241
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    • 2000
  • 'Preservation of records' is the very cornerstone upon which library is founded. The paper is regarded as one of the most proper media for the preservation. This study analyzed the preservation environment for paper records. And this study made several suggestions.

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Investigation and Analysis of Protected Cultivation of Oak Mushroom (표고시설재배의 실태조사 및 분석)

  • 이병일;손정익;김목원;홍순길
    • Proceedings of the Korean Society for Bio-Environment Control Conference
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    • 1999.11a
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    • pp.221-224
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    • 1999
  • 표고(Lentinus edodes (Berk.) Sing.)는 송이과 Tricholomataceae에 속하는 식용 버섯으로서, 동북아시아 지역에서 가장 인기 있는 재배 버섯이다. 표고의 수요와 생산량을 매년 꾸준히 증가하고 있고, 1985년 표고 생산량은 880톤, 87년 1,080톤, 89년 1,530톤, 91년 1,761톤, 92년의 표고의 재배면적은 397,340평이고, 생산량은 2,253톤이며 금액으로 375억에 이르고 있다. (중략)

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An Investigation of Floor Plans and Environmental Elements in Church (교회건축에 나타난 평면 유형과 친환경 계획사례 조사 - 국내의 15개 교회건축물을 대상으로 -)

  • Choi, Yool
    • KIEAE Journal
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    • v.7 no.5
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    • pp.13-20
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    • 2007
  • The history of the church is becoming 100 years in Korea and it is great growth in both quality and quantity with relatively a short history. But, recently church architecture is without respect to environmental plan because of considering only a quantitative growth. Consequently, the purpose of this study is to analyze the church of floor plans and environment elements of which is built recently or will be built and presents to the fundamental data for church architecture in Korea.

Field Investigation and Analysis of Greenhouse with Evaporative Cooling Systems (증발냉각시스템 설치온실의 실태 조사 및 분석)

  • 김기성;김문기;유인호;원종선
    • Proceedings of the Korean Society for Bio-Environment Control Conference
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    • 1999.11a
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    • pp.213-216
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    • 1999
  • 우리나라의 기후 특성상 여름철에는 온실내 기온과 지온이 과다하게 상승하여 정상적인 작물 생육을 기대하기 어렵다. 이러한 고온현상을 극복하기 위해 우리나라 시설원예 농가에서는 소극적이면서 비용이 적게 드는 흑색 차광망이나 자연환기를 주로 이용하고 있으며 냉방 효과가 적어 문제가 되고 있다. 근래 온실 냉방에 대한 중요성을 인식하고 증발냉각시스템을 도입하는 시설원예농가가 증가하고 있으나 기술적인 측면에서 아직 많은 문제점들이 남아있는 실정이다. (중략)

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Description of Spheropistha melanosoma Yaginuma, 1957 (Araneae: Theridiidae) from Korea

  • Sue Yeon Lee;Jung Sun Yoo;Chang Moon Jang;Seung Tae Kim
    • Korean Journal of Environmental Biology
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    • v.41 no.1
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    • pp.14-17
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    • 2023
  • A male Spheropistha melanosoma Yaginuma, 1957 from Korea in the family Theridiidae Sundevall, 1833 is described with measurements and morphological photos of the diagnostic characteristics. This species was collected with a sweep net around arable lands in a mountainous mixed forest during the investigation of spider fauna on Ulleungdo Island in 2019.

Lessons of Goseong Abandoned Metal Mine Accident (고성 폐금속 광산 오염 사건의 교훈)

  • Kwon, Ho-Jang
    • Journal of Environmental Health Sciences
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    • v.37 no.5
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    • pp.335-341
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    • 2011
  • The Goseong abandoned mine accident was a typical case of long-term sequela resulting from environmental disruption during the rapid economic development of Korea. While the final conclusion of epidemiologic investigation was that residents surrounding the abandoned mine were simply exposed to cadmium from the abandoned mine without any patient contracting 'itai-itai' disease, not only did residents around the abandoned mine suffer enormous psychological and economic damage, but people in neighbouring communities did as well when the entire area was stigmatized as an contaminated area. Environmental civic groups and the government worked together to solve the problem by forming a joint committee which held the right of decision in any matter to be determined. By inviting all the stakeholders to participate in the joint committee, a transparent investigation was guaranteed and the results of investigation and recommendations to solve the problem were accepted by all involved. Even though the environmental health division in Ministry of Environment has developed considerably and built up a capacity to deal with environmental accidents, the process which was adopted to solving the Goseong abandoned mine accident can be useful to settle environmental health issues with severe conflicts among stakeholders.