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The Scientific World Journal
Volume 2013, Article ID 415812, 9 pages
http://dx.doi.org/10.1155/2013/415812
Research Article

Emergy Analysis of Biogas Systems Based on Different Raw Materials

1College of Water Resources and Civil Engineering, China Agricultural University, Beijing 100083, China
2China Zhongyuan Engineering Corporation, Beijing 100191, China

Received 12 September 2012; Accepted 10 December 2012

Academic Editors: B. Chen and Z.-M. Chen

Copyright © 2013 Yang Wang et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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