1Influences of unvertical illumination and evenness of coal petrographic samples on the precision of automatic coal petrography testing systemWU Lin-lin, WANG Yue, BAI Xiang-fei1-42How the combustion temperature affected the determination of carbon and hydrogen using infrared methodYANG Xing-wei5-83Sealed hammer broken shrinkage machine's precision measurement and bias test sample preparation experimentZHAO li-jiang, ZHANG jun-hua9-12,154Research progress of bauxite moisture measurement using microwave method and derivation of its mathematical modelWANG Ying-jie, MENG Xiang-mei, ZHANG Yan13-155Design and Experimental of a 1 kg Experimental Coking DeviceOU YANG Shu-guang, YANG Chao, SU Xiao-li, WANG Zi-kan, CAI Guang-duo16-186Analysis on the influencing factors of the Gray-King assay of coalWEI Ning, WANG Yan-li, ZHANG Zhen, SHI Yang19-20,487Uncertainty evaluation in determination of arsenic in coal using Arsenic molybdenum blue spectrophotometric methodNING Men-cui, XIE Chong-ming, WANG Wen-yue, GAO Lei, ZHU Jia-kai21-22,258The application of NaI prober in neutron activation products and coal quality test fieldSHANG Qing-min, ZHANG Wei, XIAO Xian-dong, LIU Ye-shao23-259Discussion on dosage of BaCl2 in determination method of sulfate sulfur of coalJING De-gang, ZHAO Gui-jun26-28,3710The notices of coal screening flotation and sinking experimentWU Ji-hong29-30,3311The influencing factor of Accuracy of ash fusibility determination in actual operationLIU Xiao-fang31-3312Research on the coal blending technology of Xishan coke ovenZHANG Zhu-ying34-3713Necessity and technical risk analysis of implement of Xinjiang coal quality supervision and administrationYANG Bo, CHU Shu-qin38-4114Study on the coal quality characteristics of Shenhua blast furnace injection coalYANG Ming, GU Hong-wei, LI Xiao-wei, YAN Wei42-4415The coal quality characteristic analysis and assessment of Dianqian minefield in Pu'an countyQIN Wen45-4816Feasibility analysis of washing 1/3 coking coal in Xuchang coal mineLI Shu-wei, LIU Gao49-51,7017Discussion on the influencing factors and energy-saving measurements of the energy consumption per unit product of underground miningZHANG Guo-guang52-55,6218Industrial Test and analysis of Two-stage clean coal slime sieve bendYU Yi-dong, DING Guang-yao, LI Mei, WANG Chuan-zhi, ZHANG Xiao-bo, CHANG Shao-xiong56-6219Process Design of Coal Baode Coal Preparation Plant North District Modification ProjectLIU Shan63-6720Study on optimization of flotation concentrate dewatering scheme at Yongjin coal preparation plantJI Ying-hua, ZHANG Zhen-hong, CHEN Chang-zhou68-70 