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The Scientific World Journal
Volume 2014, Article ID 490318, 7 pages
http://dx.doi.org/10.1155/2014/490318
Research Article

Comprehensive Fractal Description of Porosity of Coal of Different Ranks

1College of Resources and Environment, Henan Polytechnic University, Jiaozuo, Henan 454003, China
2State Key Laboratory Cultivation Base for Gas Geology and Gas Control, Henan Polytechnic University, Jiaozuo, Henan 454003, China
3College of Resources and Environment, Henan Institute of Engineering, Zhengzhou, Henan 451191, China

Received 25 March 2014; Accepted 24 April 2014; Published 13 May 2014

Academic Editor: Guojie Zhang

Copyright © 2014 Jiangang Ren 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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