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'시판다류중 미량중금속에 관한 조사연구'(율무차, 칡차, 생강차를 중심으로)
박종태,조기찬,Pakr Jong Tae,Cho Gi Chan 대한환경위생공학회 1989 대한환경위생공학회지 Vol.4 No.2
In order to investigate harmful trace in commercial teaproducts. The contents of copper, lead, cadmium, zinc, chromium, manganese and iron were studied in this paper. The samples studied were Youlmoo tea(7) Arrow root tea(9) Ginger tea(4) collected from markets in Seoul area and analysis of seven metals by means of Automic absorption spectrometry. The results obtained were as follows : Lead contents is ranged from 0.06 to 0.72 ppm, cadmium from ND to 0.17 ppm, copper from 0.8 to 16.7 ppm, zinc from 10.4 to 40.4 ppm, manganess from 2.7 to 16.5 ppm, chromium from 0.04 to 4.7 ppm, iron from 7.9 to 55.7 ppm.
황지영(Hwang Ji-Young),조기찬(Cho Gi-Chan),양승우(Yang Seung-Woo) 대한건축학회 2011 대한건축학회논문집 Vol.27 No.2
The aim of this paper is to identify which elements influence on the behavior of Cheong Gye Cheon visitors. Cheong Gye Cheon restoration was on progress from July 2003 to September 2005, which is about 5.84km long. In order to find the influencing elements, Cheong Gye Chon was surveyed from July 2007 to December. Study area is from Cheong Gye square to Dongdae-Mun(14 bridges). Types of visitors are classified into 8 groups (family, lovers, friends, students, children, middle-aged people, the old and tourists). Analyzing their behavior, influencing elements are divided into two factors; internal elements and external elements. Internal elements are including street furnitures, fountains, stepping stones, and nightscape facilities. External elements are surrounding land use, number of bus-stop and subway exit, and entrance to the site. The paper concludes that the more street furnitures and internal elements are there, the more people gather, and the external elements are influencing on the type group of visiting Cheong Gye Cheon.