• Title/Summary/Keyword: Abatement

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Analysis of Seoul Citizen's Perception and Decision Making for the Ozone Pollution (서울시민의 오존오염에 대한 인식 및 의사결정 분석)

  • Cho Yongsung;Jeon Eui-Chan
    • Journal of Korean Society for Atmospheric Environment
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    • v.21 no.2
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    • pp.205-213
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    • 2005
  • A survey regarding ozone abatement policies and measures was conducted for 230 residents in Seoul. The main survey results of public opinion indicated that it would be better to devise new effective plans of public relation to citizen, and that national strategies for the ozone pollution abatement should be reevaluated and made up for the weak point. Especially, it would be necessary to provide for citizens precise and/or specific information regarding ozone pollution issue and guideline how to reduce ozone pollution from the household.

A Study on the Establishments of Aircraft Noise Abatement Procedures in Gimpo International Airport (김포공항 항공기 저소음 운항절차 수립을 위한 연구)

  • Son, Jung-Gon;Kim, Yeon-Myung
    • Proceedings of the Korean Society for Noise and Vibration Engineering Conference
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    • 2007.05a
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    • pp.1033-1037
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    • 2007
  • The final purpose of this study is to develop noise abatement procedures for minimizing the environmental impacts caused by aircraft noise in the vicinity of Gimpo Int'l Airport, and to establish appropriate noise limits and monitoring system. The results of study was suggests for more detail the crucial factors which one is reference noise level, $L_{MAX}=88dB(A)$ at 6.5km after take-off, and second one is to installation the additional three(3) noise monitoring system on both side of runway.

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A Development of the Light Weight Noise Tunnel on a High Degree of Efficiency and Environmentally Friendly for Railway (철도용 고효율 친환경 경량방음터널 기술개발)

  • Son, Jeong-Gon;Park, Gwang-Hyeon;Ryu, Rae-Eon
    • Proceedings of the Korean Society for Noise and Vibration Engineering Conference
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    • 2014.04a
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    • pp.487-490
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    • 2014
  • These Days a lot of Noise Complaints in vicinity of Railway has been more increase than before. Almost 1/3 Residences who lives in Railway side are Exposure to Noise Pollution. Since the Apartment Buildings around Railway are getting more higher, so those of the Noise Barrier are not best solution anymore. We are going to make a New Plane with the state of the art technology for Railway Noise Abatement Control. Our Goal are focus on a development of Light Weight Noise Tunnel designed by new absorption mat'l and tunnel Stucture on the Overbridge and Viaduct of existing Railway. New Noise Tunnel will be reducing their weight more than 30% against Road Traffic One and also 10dB(A) Noise Reduction against Noise Barrier.

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Environmental Analysis and Evaluation on Fuel Mix by Electric Power System Interconnection in Northeast Asia (동북아 전력계통 연계로 인한 환경성 분석 및 국내 전원구성에의 영향 평가)

  • Chung, Koo-Hyung;Kim, Hong-Geun;Kim, Bal-Ho
    • Proceedings of the KIEE Conference
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    • 2005.07a
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    • pp.769-771
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    • 2005
  • Interconnection of electric power systems, as an alternative for energy cooperation under regional economic bloc, has been under extensive debate before progressing the restructure in electric power industry and rapidly expanded in many regions after 1990s. Especially, since northeast asia has strong supplementation in resource, load shape, fuel mix etc., electric power system interconnection in this region may bring considerable economic benefits. In this paper, we evaluate economic benefits from CO2 emission abatement and effectiveness on the fuel mix in Korea by the interconnection in northeast asia. For this analysis, we evaluate effects of CO2 emission abatement under various system interconnection scenarios and compare the results of fuel mix in Korean electric power system with and without transacted electricity via interstate electric power system in northeast asia.

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Enhancement of HF Gas Removal Efficiency of a Scrubber in Semiconductor Manufacturing Process by using ANCOVA Technique (ANCOVA를 이용한 반도체공정 스크러버 HF 가스 제거 개선)

  • Kim, S.J.;Lee, M.;Xu, J.;Lim, S.;Lee, H.;Koo, J.
    • Journal of ILASS-Korea
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    • v.18 no.2
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    • pp.81-86
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    • 2013
  • To comply with the regulation of the reinforcing Clean Air Conservation Act, it is necessary for the semiconductor manufacturers to develop effective low-concentration acid gas abatement system to treat the flue gas. The low-concentration acid gas was found to be harder to deal with than the high-concentration one. In this study, the effect of various potential treatments such as air-assist nozzle spraying, magnetizing the scrubbing water, and adding surfactants to spraying and scrubbing water were investigate through the application of the statistical ANCOVA method, which was proved to be very useful tool when the inlet concentration of acid gas could not be controlled precisely and it affected the removal efficiency of the abatement system.

A Study on the Establishments of Aircraft Noise Abatement Procedures in Gimpo International Airport (김포공항 항공기 저소음 운항절차 수립을 위한 연구(II))

  • Son, Jung-Gon;Kim, Yeon-Myung
    • Transactions of the Korean Society for Noise and Vibration Engineering
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    • v.17 no.9
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    • pp.874-880
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    • 2007
  • The final purpose of this study is to develop noise abatement procedures for minimizing the environmental impacts caused by aircraft noise in the vicinity of Gimpo Int'l Airport, and to establish appropriate noise limits and monitoring system. The results of study was suggests for more detail the crucial factors which one is reference noise level, $L_{MAX}=88 dB(A)$ at 6.5 km after take-off, and second one is to installation the additional three(3) noise monitoring system on both side of runway.

The Economic Impacts of an GHG Emission Trading System in Korea (온실가스 배출권거래제도 국내도입의 경제적 효과분석)

  • Cho, Gyeong Lyeob;Cho, Yongsung;Chang, Hyunjoon
    • Environmental and Resource Economics Review
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    • v.10 no.2
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    • pp.173-216
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    • 2001
  • We compare impacts of different $CO_2$ abatement mechanisms using a CGE model. Focus is on the way the tradable permits are initially distributed for emissions trading, namely auction and grandfathering. For three major energy consuming industries (basic chemical, iron & steel and electricity) in Korea, emissions trading is clearly superior to individual $CO_2$ abatement, but auction and grandfathering show somewhat different patterns of impact. We show that depending on how the government uses the revenue from permit auction, auction may be preferable to grandfathering.

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A STUDY ON LAND USE APPRAISAL MODEL ( I )

  • Kim, Yun-Seon
    • Journal of the Korean Society of Safety
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    • v.7 no.3
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    • pp.83-88
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    • 1992
  • In This study, an attempt has been made to build a land use appraisal model as a basis for assessing the abatement effectiveness of airpollution within Seoul city due to nitrogen oxides emitted from motor trucks. Furthermore, the model is used to predict the city's traffic volum and its validity in ascertained by comparing it with the actual recorded traffic volume data. Through a series of land use planning alternatives established in this study, the abatement effective-ness of Seoul city is assessed.

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A Study on Standards of Transformer Noise Level for Outdoor Substation (옥외 변전소 변압기의 소음레벨 기준에 대한 연구)

  • Koo, Kyo-Sun;Kweon, Dong-Jin;Kwak, Ju-Sik
    • The Transactions of The Korean Institute of Electrical Engineers
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    • v.57 no.12
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    • pp.2213-2219
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    • 2008
  • Customer complaints on noise from the power transformer have been increased because of their concerns on environment. In order to solve fundamental noise problem of the transformer, KEPCO and domestic transformer manufacturers are developing 55 dBA class low noise transformers. To check accordance of the noise abatement law, we study relation between transformer noise level and substation border noise level. We present 'noise level of the substation border' under operating conditions and transformer noise level change. We also present an appropriate noise level of the transformer that satisfy the noise abatement law for outdoor substations.