1Development of running status monitoring system for hydraulic support based on dual RS485 busesYANG Shihua, SONG Jiancheng, TIAN Muqin, XU Chunyu, DONG Gugangzhuai, YIN WeibingAchievements of Scientific Research1-52Design of intelligent management and control system of coal transportation and sale based on Internet of thingsWANG YongAchievements of Scientific Research6-93Determination of evaluation indexes of ventilation effect and their membership functions of working face with high volume fraction gasCHENG Lei, ZHENG Xiaopeng, WANG DongdongAchievements of Scientific Research10-144Research of automatic vehicle identification and loading systemGUO XinAchievements of Scientific Research15-185Design of distributed network video recording system for coal mineHUANG Chenghua, WANG Shichen, GUO Baowen, CHENG DeqiangAchievements of Scientific Research18-216Research of evaluation algorithm for operational reliability of power grid based on distributed computingYANG Feihu, SHI YourenAchievements of Scientific Research22-257Research of distribution law of gas concentration of double U-shape ventilation working faceLU Tao, WU Shiyue, YAN Jinwen, QIN GuichengExperimental Research26-298Research of influence factors on characteristic parameters of coal dust explosionLIU Zhentang, GUO Rulin, XI RunzeExperimental Research30-339System dynamics modeling and demonstration of safety level of production logistics of coal mineWANG Jinfeng, ZHANG Bo, FENG Lijie, ZHAI XueqiExperimental Research34-3810MTPA-DTC efficiency optimization method for feeding system of pressure filterZHANG Ka, FANG Lei, CAO XiaodongExperimental Research39-4211Image denoising of coal dust based on fractional calculus adaptive algorithmWANG Zheng, MA XianminExperimental Research43-4612Design of interleaved three-winding coupling Buck converterZHANG Peiyan, YU ZetongExperimental Research46-4913An improved method of direct torque control of induction motorLU Bingjuan, JI Xuande, GE YunwangExperimental Research49-5314Research of mutual inductance voltage between stators of six-phase induction motorNIU Lianbo, FU Huikai, AI YongleExperimental Research54-5615Multiple model predictive control of robot manipulatorDU Jingjing, HU Junchao, SHANGGUAN XuanfengExperimental Research57-6216An improved unicast retransmission scheme based on network codingQIU Sha, LI Shiyin, LI ZongyanExperimental Research62-6617Intrusion detection system for denial of service attack in MAC layerLUO ShangpingExperimental Research67-7118Design of Internet of things of coal mine and its application analysisDING Congshi, WANG WeiProblem Probe72-7419Construction idea of multi-level scheduling informatization platform of coal mine enterprise group corporationZHANG JiyuanProblem Probe75-7720Development of ZYBG type automatic explosion suppression device of mine-used gas transmission pipelineRONG Jia, HU Shuangqi, ZHOU Wen, TIAN DanqingExperience Exchange78-81 