1Policy interpretation and development direction of small-scale cogeneration in ChinaYANG Yun1-52Structure evolutions of chars derived from Ewirgol vitrinite blending coals during coking processWANG Yingxinjie, WANG Chongyang, ZHANG Chao, WANG Wenting, CAI Xuezhen, LI Jinze, SUN Zhang6-113Study on the degree of microcrystalline order of coke determined by XRDZHANG Zhuo, ZHENG Yi, GAO Nan, TIE Weibo, WANG Qi12-174Effect of reactor improvement on coal pyrolysis process and the research statusAN Bin18-235Study on the occurrence of fluorine in coal in Huainan mining areaLI Hui, DOU Yuanyuan, LI Hanxu, SUN Changqing, GENG Yan, ZHENG Jiuqiang24-296Cause analysis and solution plan of high pressure difference of bag filter in NGD systemWANG Shipu, LI Ting30-367Caking index experimental research of gradient density sorting products of fat coal from north China Carboniferous PermianZHENG Yi37-39,688Safety design of silo in pulverized coal industrial boiler systemZHANG Xin40-43,549Analysis on influencing factors of coal seam gas content in Zhongzhai coal mineJIANG Hongbing, YANG Lei, ZHOU Ze, LIANG Jian44-48,7310Discussion on management methods of monitoring the effectiveness of results of coal inspection body and laboratoryCAI Zhidan49-5411Steel structure design research of coal sampling systemYANG Yang55-58,6312Evaluation of method for determination of selenium in coal by hydride generation-atomic fluorescence spectrometryFU Kun59-6313Determination of high content mercury in coal by thermal decomposition and homogenization atomic absorption spectrometryYANG Ni64-6814Evaluation of measurement uncertainty of sulfur trioxide test results in coal ashMI Juanceng, WEI Ning69-7315Problems and solutions for coal automatic sample preparation systemXU Fei, FENG Kui, LI Xiang, LIU Chenghai74-77,8416Application of heating rod technology in oxygen bomb calorimeterLI Dongjun, XIAO Bingqiu, WU Shuyi78-8417Determination of train coal management process time through reverse reasoning methodGAO Ziqi, FAN Yanru, YU Qun, LIU Lining85-8918Quality analysis of test results of incoming coal in thermal power plantsYU Jun90-92 