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RISS 인기검색어
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- 저자 : 강상준 ( Sang Jun Kang ) (검색결과 27 건)
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연구논문 : 도시유형에 따른 저탄소 도시계획요소 간의 상대적 중요도
강상준 ( Sang Jun Kang ),정주철 ( Ju Chul Jung ),권태정 ( Tae Jung Kwon ) 한국환경정책학회 2010 환경정책 Vol.18 No.1
The main purpose of this study is to explore the relative importance of urban planning elements that have been introduced as carbon reduction tools. Recently, low carbon city developments have widely burgeoned in the Republic of Korea. It is, however, in question what would be the feasible elements to be implemented in each different kind of urban and rural settings. The relative importance weights of the elements are obtained by using AHP(Analytical Hierarchy Process) method with the purposive samples of 38 professionals in the urban planning fields (CR=0.008~0.0114). The results show that the important planning elements for carbon reduction are environment-friendly land use (0.283) and green transportation (0.24) for new urban development; green transportation (0.275) and energy efficiency increment (0.230) for existing urban area on flatland; ecosystem (0.248) and environment-friendly land use (0.210) for existing urban area on hillside; ecosystem (0.299) and environment-friendly land use (0.238) for existing rural area on flatland; and ecosystem (0.326) and environment-friendly land use (0.204) for existing rural area on hillside. These findings imply that site characteristics should be interpreted throughly and the low carbon elements must be revisited and implemented with relative priority.
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최적관리기법 위치분배에 의한 유역단위 하천유량과 회피비용 변화에 관한 연구
강상준 ( Sang Jun Kang ) 한국환경연구원 2010 환경정책연구 Vol.9 No.1
Urbanized environments are constructed to estimate peak flow and cost savings in response to possible BMP allocation at a watershed scale. The main goal is to explore the proper allocation of sub-watershed level BMPs for peak flow attenuation at a watershed scale. Since several individual site scale BMPs work as a form of aggregated BMPs at a sub-watershed scale, it is a question as to how to properly allocate the sub-watershed level BMPs at a watershed scale. The Hydrological Simulation Program-FORTRAN (HSPF) is set up for a hypothetically urbanized watershed. A peak flow is determined to be the primary variable of interest and targeted to characterize the spatial distribution of aggregated BMPs. Construction cost of a regional pond forms the basis of the economic valuation. The results indicate that when total size of BMPs is constant in the entire watershed, (1) it is most effective to have aggregated BMPs in some upper sub-watersheds while the BMPs in either the mainstem sub-watershed or a single sub-watershed are the least effective choices for peak flow attenuation at a watershed scale; (2) savings exist between allocation differences and reduced peak flow increases cost savings. The largest saving is found in the strategy of aggregated BMPs in some upper sub-watersheds. These findings, however, call for follow-up site specific case studies revisiting the watershed scale impacts of BMP allocation. Then, it will be argued that location and extent of decentralization are considerable policy variables for an alternative stormwater management policy at a watershed scale.
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강상준 ( Sang-jun Kang ),김기중 ( Ki-joong Kim ),최다영 ( Da-young Choi ),이명석 ( Myung-seok Lee ),정민철 ( Min-chul Chung ),안호근 ( Ho-geun Ahn ) 한국환경기술학회 2009 한국환경기술학회지 Vol.10 No.2
In this paper, well-being typed activated carbon sheets were prepared by mixing powdered activated carbon and charcoal with three types of granular activated carbon. The sheets were aimed to apply to removal of indoor pollutants. Adsorption performance of the sheets for benzene, toluene, xylenes, and formaldehyde was investigated using flow-typed experimental apparatus. Average pore size of the sheets did not change, but physical properties such as specific surface area and pore volume were changed according to the mixed amounts of powdered activated carbon and charcoal. This fact suggests that penetration of fine charcoal formed during its mixing process into micropore of granular activated carbon might change its physical properties. Adsorption performance of the sheets was not higher than that of granular activated carbon, but was over or similar to that of powdered activated carbon. The prepared sheets were most favorable to adsorption of toluene. Close correlation between adsorbed amounts and physical properties was not obtained because pore structure of the sheets did not similar to each other. As a result, it was considered that the activated carbon sheets prepared by mixing powdered activated carbon and charcoal properly could be used as an eco-material for improving indoor air quality.
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