1Mathematic relations and conversion method of Roga index and Caking indexGUO Zhi, SHANG Tie-cheng1-22Research on the coke into blast furnaces and tuyere coke of Coking Plant of Baotou Iron and Steel Group Company Ltd.ZHANG Yong-qiang, LIU Jiong, FU Li-jun3-43Experimental study on the influence factors of strength of industrial briquetteLU Guang, XING Bao-lin, MA Jiao, GUO Hui5-6,94Coal character and variable rules of Nuodong Mining AreaSHU Wan-bai7-95Coal quality characteristic analysis in south of Zhengning Coalfield in Gansu provinceLIU Bing-yuan10-116Research on Guandi meager lean coal as blast furnace PCI coalWANG Chun-hua12-147The principle of coal blending in power plants and calculation of coal quality characteristic parametersFAN Hua-ting15-178Experimental study on blending coal of Permian-Carboniferous high sulfur coal in Dengcheng CountyBAO Jiang18-209Research and application of the correlativity between calorific value and ash of coal in Xinwen Mining AreaHE Jin-shui21-22,3010Risk evaluation and management of coal export in Huanghua PortSHI Ying-hui23-2511Analysis of factors influencing the accurate determination of the volatile matter of coalPEI Shao-rui26-2712Countermeasure and the influence factors of mine coal quality managementLI Gan-wen28-3013Quality management of coal sale process in Kailuan GroupLIU Xia31-3314Discussion on coal laboratory accreditationNIU Yu-ping33-3415Manufacturing HGI standard matter and analyzing the ectypal fixed value of year 2006SUN Gang, ZHANG Bao-qing, LI Ying-hua35-36,3916Evaluation of uncertainty about the fixed value of the coal ash fusibility standard substanceLI Hong-tu37-3917Comparison between slow-ashing method and improved fast-ashing method in commission testZHANG Li-ping, WEN Xiang-xin40-4118Analysis on sampling of coal in the automobile vehicleXU Hui-jun42-4319Coal slurry reforming process by two-stage concentration and recovery in Adaohai Coal Preparation PlantCHAI Jin, SHI Jian-guang, ZHANG Chun-lin, ZHANG Xiao-zhou, WU Li-li44-4620Washing methods of mixing different impurities in raw coalMAO Yu-hong, FANG Wen-lin47-48 