1Construction of information system of coal quality management in Shaanxi Coal and Chemical Industry GroupZHAO Zhao-jun, YAN Xiao-li1-52Research on separation and enrichment of macerals of coalCHEN Hong-bo, ZHANG Yu-hong6-93Analysis on the status and prospect of gasifying briquette coal technologies in ChinaWANG Dong-sheng, HAN Jin-de, JIANG Ying10-124Research on the changing rule of coal properties for short-term stored samplesWANG Xing-long13-15,195Uncertainty evaluation of sulfur content determination in coal by infrared methodYAO Wen-song, WANG Qun-ying, QIN Ling, QIN Tao, WANG Jia-rui, LI Xiao-jiang16-196Analysis on the adhesive for gasifying briquette and industrial briquette based on TRIZ theoryWANG Yue, WANG Dong-sheng, HAN Jin-de20-237Analysis on the quality control of coal testing labsLIU Huan-kun, ZHI Shun, ZHANG Yun-hong24-26,358Analysis on the reason and countermeasure of total moisture overproof for part imported coalHU Wen-tang27-309Analysis on the coal quality used in UrumqiCHU Shu-qin, Gulixiati31-32,3810Discussion on method and suggestion of energy consumption statistics of coal-to-nature gasZHANG Guo-guang, JIANG Ying33-3511Analysis on the application of standards of coal sampling method and the common problems in practiceLI Xing-wang36-3812Research on the determination of check admissible error of testing results between general analysis sample and pack checking sampleZHANG Tai-ping39-4113Discussion on the influence of ash yield and sulfur content on the determination of apparent relative density of coalTIAN Xin-juan, LONG Ya-ping, XIAO Wen-zhao, WANG Jie-ling, LI Yu-hui42-43,4914Discussion on the process control of total sulfur determination in coal labs of power plantsYU Jun, LIANG Jian-fen44-46,5615Technical analysis on 5E-MAG6600 full-automatic coal proximate analyzerXUE Yong-yan47-4916Analysis on the environmental influence during the testing process of automatic calorimetryLI Shu-long, YANG Hai-sheng50-5117Discussion on the influencing factors of volatile matter determination with coal proximate analyzerZHANG Jing-ling, GUO Jun-lan52-5318Analysis on the proper use of PL300 full-automatic plastometer determinatorMA Qian54-5619Discussion on the application of FCA-2000 pulverization-falling type of coal slurry preprocessor in Zhengji Zhuoyue Coal Preparation PlantYUAN Bo-wen, JIANG Ming-dong, WU Chao-dang, YU Chao-fu, LIU Chong-gang, CAO Jiang57-6020Discussion on reformation of coal slurry system in Fangezhuang Coal Preparation PlantLIANG Zeng-tian61-62,65 