supported by the National Natural Science Foundation of China(21206188);Open Foundation from State Key Laboratory Breeding Base of Coal Science and Technology Co-founded by Shanxi Province and Ministry Education(MKX201502);National Undergraduate Training Programs for Innovation of China University of Mining and Technology(201610290036)
supported by the National Natural Science Foundation of China(20936003);the Fundamental Research Funds for the Central Universities(China University of Mining and Technology,2010QNA11);the Innovation Funds for China University of Mining and Technology and High Tech Insititute of Lianyungang Xuwei new district(2011KDGXYJJ06)~~