MACRO REVIEW
Online ISSN : 1884-2496
Print ISSN : 0915-0560
ISSN-L : 0915-0560
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Volume 27, Issue 1
Displaying 1-4 of 4 articles from this issue
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Research Paper
  • Comparative Analysis of Municipal Solid Waste Management System between Japan and Korea
    Kosuke TOSHIKI, Jeong-soo YU
    2014 Volume 27 Issue 1 Pages 1-19
    Published: 2014
    Released on J-STAGE: July 27, 2015
    DOIhttps://doi.org/10.11286/jmr.27.1
    JOURNAL FREE ACCESS
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    The objectives of this research are to investigate the actual condition of municipal solid waste management (MSWM) system in Korea, to compare sorting and recycling of waste plastic and kitchen waste, and the function of incineration in MSWM, and to consider the ideal MSWM from the aspects of the efficient use of resources and energy recovery. Up to now, MSWM in Korea depends on strict recycling system and landfilling. However, the sorting and recycling system is inefficient because of high unsuitable material mixing rate. Recently, Seoul Special City promotes incineration and energy recovery in MSWM system to reduce landifilling waste like Japan. However, the approaches in Korea: the concentration of large scale incineration facilities, wide area management, and kitchen waste recycling are different from Japanese one. Wide area management and kitchen waste recycling are also important objectives for policy in Japan, so these approaches in Korea are remarkable. In addition, regarding recycling of plastic which include various synthetic resins, it should be consider that the plastic is incinerated and recover energy.
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  • Principal component analysis of information transmission based on the frequency appearance of environmental terminology
    Sho UEDA, Hiroshi YAGITA
    2014 Volume 27 Issue 1 Pages 21-30
    Published: 2014
    Released on J-STAGE: July 27, 2015
    DOIhttps://doi.org/10.11286/jmr.27.21
    JOURNAL FREE ACCESS
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    The purpose of this study is to elucidate the information transmitting structure on environmental issues. Environmental information should be illustrated and systematized to solve environmental issues. By clustering and principal component analysis, the appearance frequency of environmental terminology was analyzed on the media such as Grants–in–Aid for Scientific Research, newspaper, academic paper, Minutes, National Diet Library, and the White Paper. Environmental terms were classified into the 4 clusters: "Media cluster" terms affected by the newspaper, "Technical cluster” terms affected by in the academic paper, "Vital cluster" terms with high total score, "Trivial cluster" terms with low total score.
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