1Analysis on the exploration and utilization of coal resources in Huainan Mining GroupCUI Song-tao, LU Qi-jun1-52Application of steam coals blending in coal quality management of Shenhua GroupMIAO Xi-wei6-103Discussion on the reform scheme of amount calculation of coalLIU En-qing11-13,164Analysis on the structural characteristics of vitrains in anthracitesZHANG Wen-bin14-165Application of mathematical statistics in internal quality control of coal testing labsLI En-xiao, GUAN Zeng-jun17-196Application of vitrinite reflectogram in the process of coal preparationLEI Wei20-22,307Discussion on the fuel coal quality management in power plantLI Qiu-lin, WEI Guo-qing23-24,278Study on the effect of oxidation on the stability of bituminous plastometric indicesSUI Yan25-279Discussion on the regression and the application of empirical formula of net calorific value as received of coal in Huanghua PortZHANG Yun-hong, XING Xiu-yun, ZHI Shun28-3010Discussion on the regression deduction of ash yield, moisture content and calorific value for Shanwan coal and Buertai CoalZHANG Jing-ling, GUO Jun-lan31-33,3611Discussion on the digitalization management of certificate of coal quality detection operatorsZHAO Bo34-3612Research on the determination of trace Bromine in coal by alkaline magenta colorimetric methodZHANG Xue-mei, SU Qing-ping, LI Hong-li, HU Jian-chao37-39,4713Analysis on the precision test of combined sampling machineZHANG Chao-wu, KONG Chuan-feng, HE Wen-yan40-4214Discussion on the improvement measures and the advantages and disadvantages analysis of sulfur content determination by coulomb methodFAN Zhi-bin, YU Wen-tao, WU Yu-xia, MA Yu-ping, CAO Shu-fang43-45,4915Comparison of the calorific value determination by fast method and routine methodLAI Zhi-bin, ZHANG Hui, CHEN Wei-dong46-4716Analysis on the influencing factors and controlling measures of apparent relative density determination of coalCHEN Jian-wei48-4917New exploration on the comprehensive utilization of gangue in coal mining areaWANG Xin-feng, GAO Ming-zhong, FANG Xiao-min50-52,5618Analysis on the processing characteristics of pyrite in the high-sulphur washed gangue in coal preparation plantXING Da-xue, HUANG Yang-quan53-5619Practice and prospect of technical transformation in Zhaogezhuang coal preparation plantWU Sheng-xing57-58,6120Application of XJM-S16 flotation machine in Xiangmei clean coal preparation plantCAI Lie-bang, LIU Yuan-li59-61 