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Soil Environmental Assesment by the Risk and Artificial Enrichment of Hampyeong District Soils (함평지역 토양의 위해성과 인위적 부화에 의한 토양환경평가)

  • Youn, Seok-Tai;Na, Bum-Soo
    • Journal of Environmental Impact Assessment
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    • v.17 no.6
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    • pp.321-333
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    • 2008
  • Considering risks and artificial enrichments of metals in the soils of the study area, the study aims to analyze geology, grain size and geochemistry. Geology is mainly composed of gneisses and phyllites of metamorphic rocks, sandstones, siltstones, shales, tuffs of sedimentary ones and granites and andesites of igneous ones in the area. In the area, mean contents of metals are not meaningful in accordance with petrogenesis. The soil textures of the area are of S, lS and sL of sandy soil, L, scL, cL of loam and C, zC and sC of clayey soil. Mean contents of Ni, Cr, Co and Cu are meaningfully high in loam and clayey soil relative to sandy soil, whereas Ni, Zn, Cd contents are higher in clayey soil than in loam. Those differences imply the metallic contents are dependent to grain size. Based on the metal contents in the soils of the study area, Cu and Zn in loams and Pb in sandy soils are corresponded to soil contamination warning standards, and As showing 75mg/kg of maximum content in loams is assigned to soil contamination countermeasure standards, respectively. Artificial enrichment factor minimized wall rock and grain size relations is over 1 in Cr, Ni and Cu, but the factor is below 1 in average of other metals.

Studies on Polynuclear Aromatic Hydrocarbons in Soils of Ulsan City (蔚山市 土砂中의 多環芳香族의 鹽化水素의 含量에 關한 硏究)

  • 孫東憲;金正行
    • Journal of Korean Society for Atmospheric Environment
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    • v.6 no.1
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    • pp.22-30
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    • 1990
  • The contents of benzo(a)pyrene (Bap.), Pyrene(Py) and Perylene(Pery) were determined by one-dimensional dual band thinlayer chromatogragphy and spectrofluorophotometer in soil samples from road at 36 places of Ulsan and 6 places of Seoul from April to May, 1984. The concents were as follows: 1. Ulsan city : Bap. 0.05-3.66 $\mu$g/g ; mean 1.07 $\mu$g/g Py. 0.60-11.01 $\mu$g/g ; mean 4.34 $\mu$g/g Pery. 0.94-5.48 $\mu$g/g ; mean 1.83 $\mu$g/g 1) Industrial area : Bap. 0.03-3.66 $\mu$g/g ; mean 5.28 $\mu$g/g Py. 2.34-9.07 $\mu$g/g ; mean 5.28 $\mu$g/g Pery. 1.01-3.69 $\mu$g/g ; mean 2.09 $\mu$g/g 2) Commercial area : Bap. 0.15-2.27 $\mu$g/g ; mean 0.29 $\mu$g/g Py. 0.06-11.0 $\mu$g/g ; mean 4.04 $\mu$g/g Pery. 1.03-5.48 $\mu$g/g ; mean 1.84 $\mu$g/g 3) Residential area : Bap. 0.05-0.05 $\mu$g/g ; mean 0.29 $\mu$g/g Py. 1.34-5.53 $\mu$g/g ; mean 2.74 $\mu$g/g Pery. 0.94-2.15 $\mu$g/g ; mean 1.18 $\mu$g/g 2. Commerical area in Seoul : Bap. 0.35-1.01 $\mu$g/g ; mean 0.74 $\mu$g/g Py. 9.37-24,44 $\mu$g/g ; mean 18.64 $\mu$g/g Peay. 1.47-2.24 $\mu$g/g ; mean 1.87 $\mu$g/g 3. The areas that had high contents of Benzo(a)pyrene had also high contents of Pyrene and Perylene. 4. The industrial area had the highest contents of polynuclear aromatic hydrocarbons, followed by commercial area and residential area. 5. The contents of Bap. and Pery. in the commercial area were similar in Seoul and Ulsan, while the content of Py. in Seoul was 4 times higher than in Ulsan.

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A Study on development of Motion Picture Contents in the invisible area of the dematerialized era (탈물질화 시대의 비가시적 영역에서 영상콘텐츠 개발을 위한 연구)

  • 최광춘;김후성
    • Proceedings of the Korea Contents Association Conference
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    • 2004.05a
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    • pp.449-455
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    • 2004
  • In aspects of materializing rational and reasonable beauty in motion picture contents design area, it intends to conceptualize the visual design through studies of the invisible area, the virtual space of the dematerialized era, contrary to the commonly practiced visual design area of the concrete substance and to provide an opportunity to gain new senses and the embedded meanings of the motion picture graphics, which are created in the electronic space. Especially, although the invisible phenomenon such as electromagnetic wave exist in space, it was treated as a conceptual subject. However, it intends to seek a design approach about physical, poetical, aesthetical experience of the design in the invisible area, escaped from the limited existing perspective. Based on such theory, it denotes to secure the possibility of new design through the application of sound, rhythm, color and image in fractal design area.

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중학교 기술ㆍ가정 교과서 주생활 단원 영역 분석

  • 이정규;김명자;모태화;박미정;박선영;조재순
    • Journal of Korean Home Economics Education Association
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    • v.15 no.2
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    • pp.35-54
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    • 2003
  • The purpose of this research is to analyze the contents of Housing in 10 TechnologyㆍHome Economics textbooks for the 9th graders published in 2003. The results found that contents of Housing area in the textbooks were strengthened in both of quantity and quality aspects. The structure and number of pages of the area were varied by the textbook. Even though Housing area was likely consisted of three main parts in nine books, the information beside literal explanation was showed by various ways such as tips, activities, figures, tables, animations, etc. There were wide variation in the contents of the information, too. This research hopefully would be used to facilitate for the teachers to expose the Housing contents in the ten books and stimulate to utilize the informations in the all textbooks as a source of teaching materials.

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Environmental Effects Caused by Abandoned Metal Mines in the Kyungpook Province (경북지역 폐금속광산이 환경에 미치는 영향)

  • Lee, Jae Yeong;Kim, Jong Gun;Lee, In Ho;Lee, Jin Kook
    • Economic and Environmental Geology
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    • v.26 no.4
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    • pp.465-472
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    • 1993
  • The heavy metal contents are more abundant in stream waters, paddy soils and rice plants in the vicinity of abandoned mines compared to the surrounding areas in the Kyungpook province. However, these contents tend to decrease with distance from mines, and show some variation under different geological and geochemical environments. The Sin-stream waters have high contents of Cu=4.9 ppm, Pb=0.1 ppm, Zn=3.5 ppm and other heavy metals (Ni, Co, Cd) at Dalsung abandoned mine and low contents of Cu=0.4 ppm, Pb=0.1 ppm, Zn=0.1 ppm and other metals= 0.002 ppm in the surrounding area. The high contents decrease in the downstream in the area of calcareous sedimentary rocks. The paddy soils have high contents of approximately Cu=51 ppm, Pb=83 ppm, Zn=211 ppm, and Cd=11.3 ppm in the vicinity of Gunwi abandoned mine but low contents of Cu=4.5 ppm, Pb=2.9 ppm, Zn=60 ppm and Cd=0.4 ppm in the surrounding area. The Dadeog abandoned mine also shows similar trends to Gunwi mine. The contents of heavy metals of rice plants are high in the roots but trends to decrease through stem+leaf and become low in brown rices.

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A Study on the Development Policy of Contents Industry in the Convergence Era: Focusing on the Evaluation of Status and Importance (융합시대 국내 콘텐츠 산업의 진흥정책 방향성 연구: 현황 및 중요도 평가를 중심으로)

  • Chung, Yoon-Kyung;Kim, Mi-Sun
    • Korean journal of communication and information
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    • v.57
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    • pp.227-249
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    • 2012
  • In the media convergence era, contents industry is raising core area in the government level. This study explores directions of development policy of national contents industry. So this study performs depth interview with 10 experts and investigates delphi research with 30 experts who are specialists in digital convergence area. Following the depth interview, there are three categories in the convergence contents - technical area, human resource area, and political area. The result shows that there is discordance between importance and present status each area. This finding suggests that there is political delay in the convergence media industry. In conclusion, it is necessary to look over the current limits and inspect defects. This study implicates further directions of national contents industry.

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A Preliminary Study for Developing the Learning Content & Method on Clothing and Textiles Education for Middle School Students -on the Basic of the Analysis of the Learning Content & Subjects on the Area of Clothing and Textiles in Home Economics for Young Men:A Teaching Guide- (남녀 중학생의 의생활영역 학습내용과 학습방법 개발을 위한 기초연구 -Home Economics for Young Men:A Teaching Guide의 의생활 영역 학습내용과 학습과제 분석을 통하여-)

  • 이수희;신상옥
    • Journal of Korean Home Economics Education Association
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    • v.9 no.2
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    • pp.115-130
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    • 1997
  • The purposes of this study are:(1) to analyze the learning content & subjects on the area of clothing and textiles in Home Economics for Young Men: A Teaching Guide, (2) to compare it with the learning content & subjects on the area of clothing and textiles in Home Economics teaching guides in the middle school in Korea, (3) to provide preliminary data for developing the learning content & learning method on clothing and textiles education for middle school students. To implement these proposals, Home Economics for young Men: A Teaching Guide in U.S.A and 6 Home Economics teaching guides for the middle school in Korea are reviewed and analyzed. The research findings were as follows: 1. Home Economics for Young Men is characterized as including: (1) interesting learning contents for girls and boys in the middle school, (2) learning contents for helping students to work on their own initiative (3) learning contents related to actual life, (4) practical consumer education content related to clothing and textiles area, (5) learning contents for developing originality, (6) learning contents related to vocational education. 2. The subjects in Home Economics for Young Men give careful considerations especially on how to learn. They are based on the idea that middle school students have to learn and to solve the subject by themselves. 3. Learning contents on Home Economics teaching guides for middle school in Korea are different from learning contents in Home Economics for Young Men in the subject & the form of description, the subject matter of practice in clothing area, the standpoint of description on clothing matters. The subjects in Home Economics teaching guides for middle school in Korea don’s give careful consideration on how to learn. There are little idea that middle school students have to learn and to solve the subject by themselves.

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Studies on the Pollution of Heavy Metal in Soil and Vegetable (土壤 및 菜蔬中의 重金屬汚染에 關한 硏究)

  • Hong, Sa Uk;Park, Seung Hee
    • Journal of Environmental Health Sciences
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    • v.10 no.1
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    • pp.33-45
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    • 1984
  • In order to investigate the pollution of heavy metal in soil, chinese cabbage and radish collected from Singal interchange (highway area), Anyang stream, Jungryang stream (stream basin) and Chunchun dong, Suweon (non-polluted area), this study was carried out from July to October in 1983. The contents of cadmium, copper, lead, and zinc were determined by atomic absorption spectrqphotometry. Generally in soil, the contents of heavy metals in highway area were lower than that in Anyang stream and Jungryang stream, but higher than that in non-polluted area. (Chunchun dong, Suweon). The vegetable samples of highway area were more polluted compared with that of Chunchun dong, Suweon. The contents of heavy metals in radish were higher than that of chinese cabbage and radish leaves were more polluted than roots.

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histological Damage and Growth Inhibition of Pinus densiflora around the Metropolitan Area of Seoul (수도권 주변 소나무의 조직피해와 생장억제)

  • 이창석;길지현;유영한
    • The Korean Journal of Ecology
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    • v.21 no.2
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    • pp.125-131
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    • 1998
  • Histological damage and growth inhibition of Pinus densiflora were analysed in different areas around the Metropolitan area of Seoul urban (heavily polluted), suburban (lightly polluted), and rural(unpolluted) areas. Soil properties of each area were also investigated. Contact angles of water droplet on needle leaves growing in polluted areas were lower than that in unpolluted area. Transpiration rates of needle leaves growing in polluted areas were more rapid than that in unpolluted area. These results represented that needle leaves growing in polluted areas were more susceptible to water deficit than that growing in unpolluted area was. Growths of annual ring of Pinus densiflora growing in polluted areas were lower than that in unpolluted area. On the other hand, soil pH in polluted areas was lower than that in unpolluted area. That is, the former was more acidified than that the latter was. Ca and Mg contents in polluted areas were lower than that in unpolluted area, while Al contents in polluted areas were higher than that in unpolluted area. These soil properties revealed that the effects of acid precipitates in urban and suburban areas were severer than that in rural area.

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Ground Water Pollution Status of Agricultural Water Source of Greenhouse Area in Gyeongnam (경남 시설원예지 농업용 지하수의 수질 현황)

  • 이성태;조주식
    • Journal of Environmental Science International
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    • v.7 no.4
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    • pp.531-540
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    • 1998
  • To examine water pollution status of agricultural water source of greenhouse area in Gyeongnam, the ground water quality was investigated six times at five areas in Gyeongnam from October in 1995 to March in 1996. pH of ground water were generally in the range of 5.9∼7.6. But a site in Changnyeong area was out of the range In 6.0∼8.5 which is water quality standard for agriculture. COD of ground water was below 2.8mg/l. NH4+-N contents in ground water was very low in all areas and the average of NO3'-N contents in Changnyeong and Chinju area was high with 13.2 and 11.5mg/l respectively. Hardness, SO42- and EC of ground water In Hmm were higher than any other area. Fe and Mn contents of ground water in Kimhae were higher than any other area with 7.17 and 0.95wt, respectively. Heavy metals such as Cu, Cd, Pb and Zn of ground waker were below water Quality standard far agriculture but some sites were over. Between COD and SS in ground water were not correlated with rInG.338,'but between COD and NH4+, -N were positively correlated. And EC was positively correlated with Ca2+, Mg2+ and SO42-. Ground water pollution status of agricultural water source of greenhouse area in Gyeongnam was genrrally high in order of Sacheon < Chinju < Hmn < Kimhae < Changnyeong.

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