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거대고리 화합물을 이용한 금속 이온의 흡착 및 분리에 관한 연구
박성규,김준태,임현택 ( Seong Kyu Park,Joon Tae Kim,Hyun Taek Lim ) 한국공업화학회 1998 응용화학 Vol.2 No.1
Resins with 1-aza-15-crown-5 macrocyclic ligand attached to chloromethylated rene-1,4-divinylbenzene by substitution reaction were prepared and the effect of, metal concentration and cross-linkage of the matrix on the adsorption for UO₂²^+, ²^+ and Sm³^+ was investigated. The metal ion was not adsorbed on the resins pH ○ge below 3 and above pH 4, fast adsorption behavior was showed. The resin ectivity determined in ethanol matrix was in increasing order UO₂²+ $gt; Zn²^+ $gt; Sm³^+. addition, these metal ion could be separated on the column packed with 1% ○sslinked resin by pH 2.5 HNO₃ as an eluent.
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시${\cdot}$공간적 고해상도 자동차 배출량 모형의 개발
박성규,김신도,박기학,Park, Seong-Kyu,Kim, Shin-Do,Park, Ki-Hark 한국환경보건학회 2004 한국환경보건학회지 Vol.30 No.3
Traffic represents one of the largest sources of primary air pollutants in urban area. As a consequence, numerous abatement strategies are being pursued to decrease the ambient concentration of pollutants. A characteristics of most of the these strategies is a requirement for accurate data on both the quantity and spatial distribution of emissions to air in the form of an atmospheric emission inventory database. In the case of traffic pollution, such an inventory must be compiled using activity statistics and emission factors for vehicle types. The majority of inventories are compiled using passive data from either surveys or transportation models and by their very nature tend to be out-of-date by the time they are compiled. The study of current trends is towards integrating urban traffic control systems and assessments of the environmental effects of motor vehicles. In this study, a model of vehicle emission calculation by using real-time traffic data was studied. Traffic data, which are required on a street-by-street basis, is obtained from induction loops of traffic control system. It is possible that characteristics of hourly air pollutants emission rates is obtained from hourly traffic volume and speed. An emission rates model is allocated with a high resolution space by using geographic information system (GIS). Vehicle emission model was developed with a high resolution spatial, gridded and hourly emission rates.
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