1Research progress and prospect of coal based solid waste backfilling mining technologyZHANG Jixiong, ZHANG Qiang, ZHOU Nan, LI Meng, HUANG Peng, LI Baiyi4167-41812Research progress on mining with backfill technology of underground metalliferous mineGUO Lijie, LIU Guangsheng, MA Qinghai, CHEN Xinzheng4182-42003Basic theory and key technology of multi-source coal-based solid waste for green backfillingYANG Ke, ZHAO Xinyuan, HE Xiang, WEI Zhen4201-42164Evolution and degradation mechanism of surface vegetation coverage in typical ecologically fragile mining areas in western ChinaHUANG Yanli, GUO Yachao, QI Wenyue, LI Junmeng, WANG Jiaqi, OUYANG Shenyang, WU Laiwei4217-42275Experimental study on preparation of negative carbon filling material forwater protection mining by CO2 mineralization of coal-based solid wasteMA Liqiang, ZHAI Jiangtao, NGO Ichhuy4228-42366Condition state characterization and self-identification control method of key equipment for intelligent solid backfillingZHANG Qiang, CUI Pengfei, ZHANG Jixiong, ZHANG Hao, CHANG Tianjiao, YANG Junhui4237-42497Strength demand of cemented backfill guided by backfilling ratio control in coal minesDENG Xuejie, LIU Hao, WANG Jiachen, WANG Fei, LIU Xuzheng, ZHENG Qingxue4250-42648Green mining technology of overburden isolated grout injectionXUAN Dayang, XU Jialin, WANG Binglong4265-42779Preparation and spectroscopic characteristics of coal-based graphene quantum dots from demineralized anthracite in Jiangoushan,NingxiaTANG Yuegang, LI Ruiqing, FAN Jiangtao, MA Pengliang, WANG Shaoqing, LUO Peng, GUO Weiyong4278-428910Coal-based graphene oxide/bismuth vanadate composite for photoreduction of CO2ZHANG Yating, ZHENG Lisi, LI Keke, JIA Jia, ZHANG Ting4290-429911Coal graphitization:Structures and their differential evolutionWANG Shaoqing, WANG Xiaoling, SHA Jidun, MU Ruifeng4300-431212In-situ Raman spectroscopy of chemical structural evolution during pyrolysis for Yimin coalLI Meifen, LI Yexi, SHAO Yan, CHEN Xiaozhen, CUI Xi, ZUO Jiaqi, JIANG Hengyu4313-432213Optical characteristics of macerals and formation path of graphitic components in coal-based graphite in the Yongan coalfield,Southwest FujianLI Jiuqing, QIN Yong, CHEN Yilin, SHEN Jian, LI Geng, ZHENG Changdong4323-433514Stress response of coalcondensed aromatic ring:Inspiration for graphitization of anthraciteSONG Yu, JIANG Bo, WANG Meng, LI Fengli, CHENG Guoxi, HOU Chenliang, FENG Guangjun, QUAN Fangkai4336-435115Research progress of air pollutant emissions of Chinese coal-fired power plantsGU Chen, ZHAO Yu4352-436116Chemical characteristics of particulate matter in the atmospheric environment after"coal substitution"policy in coal combustion cities and their surrounding areasNIU Hongya, SHI Lijie, REN Xiulong, JIN Niu, WANG Shuo, LI Shujiao, HU Sihao, WU Chunmiao, LU Yanqi, FAN Jingsen, SUN Yuzhuang4362-437417Real-time emission characteristics of primary particulate from typical industrial activitiesGE Hongfei, KONG Shaofei, LIU Jinhong, FENG Yunkai, QIN Si, QI Shihua4375-438718Microscopic characteristics and differences of fine primary particles emitted from coal-fired power plant and residential coal combustionZHANG Yinxiao, LIU Lei, YAN Qin, KONG Shaofei, LI Weijun4388-439419Analysis of the characteristics of methane in the coal mining area of southeastern Shanxi with eddy and mobile observationLIU Yanqiu, QIN Kai, COHEN Blake Jason, KANG Hanshu, HU Wei, LU Fan, WU Xiaohui, YANG Chengli4395-440220Law and mechanism of surface movement and deformation above shallow longwall abandoned gob under building loadCHEN Shaojie, ZHU Weihao, WANG Feng, YIN Dawei, REN Mengzi, VARNAVSKIY Kirill4403-4416 