1Numerical Simulation Research of Pressure Relief Mechanism of Borehole of Small Pillar Stress Concentrated AreasLI Jin-kui, LIU Dong-sheng, LI Xue-bin, XIONG Zhen-huaAchievements of Science and Research1-42Design of Industry-used Redundancy Power Supply Based on LTC4357FU Wei, LIU Cheng-tao, WANG PingAchievements of Science and Research4-73Research of Monitoring and Control System of Wireless Temperature Sensor Ad-hoc Networks for Coal Spontaneous Combustion Based on CC1020DENG Jun, WANG Wei-feng, CHEN Xiao-kun, JING Xing-pengAchievements of Science and Research8-114Brief Analysis of Application of Cognitive Radio in Mine CommunicationCHEN Gui-zhen, DING En-jie, ZHANG Shen, HU Qing-songLaboratory Research12-145Research of Model Selection of Dragline Equipment of Opencast MineMEI Xiao-ren, WANG Zhi-hongLaboratory Research15-186Research of DBA Algorithm of EPON System of Mining AreaZHONG Li-yun, JIA ShengLaboratory Research18-217Measurement of Influence of Mining Car on Transmission Characteristics of Electromagnetic WaveLIANG Hong, PAN TaoLaboratory Research21-238Frequency-domain Super-resolution TOA Position Algorithm of UndergroundCHEN Kui, XU ZhaoLaboratory Research24-289Application and Cumulative Configuration of Weighing Instrument in Dry Coaldust ConveyingLaboratory Research29-3110Application of Improved Wavelet Packet Algorithm in Fault Diagnosis of Frequency-conversion Speed-regulation SystemZHU Gao-zhong, FENG Gao-mingLaboratory Research31-3511Research of Scheme of Dynamic Reactive Power Compensation of Mine HoistWANG Yu-mei, AI Yong-le, WANG NaLaboratory Research36-3812Design of Vector Control System of Asynchronous Motor Based on DSP and Its SimulationOU Wei-bin, LI Jun-shengLaboratory Research39-4213Using Majority Function to Realize Sensorless Brushless DC Motor Control with Back-electromotive Force FilteringHU Bang-nan, LIU Yuan-yuanLaboratory Research42-4514Sensitive Overload Protection of Motor Based on Thermal ModelLaboratory Research46-4915Implementation of Porting μC/OS-II Operating System to ARM7XU Jie, SONG Jian-cheng, YAN Xian-yongLaboratory Research49-5216Setting Method of Baud Rate of CAN Bus and Its Error AnalysisYU Yue-sen, QIAN Zhen-hua, PENG Li-ming, LIU JianLaboratory Research52-5517Research of a Data Storage Engine with High Performance Oriented Flash MemoryZHOU Xiao-yun, QIN Xiong-pai, XU ZhaoLaboratory Research56-6118Present Situation and Developing Trend of New Type of Measuring Technology for Liquid-levelYANG Chao-hong, LI HuanOverview61-6419Design of Hydraulic Support Control System Based on Double CAN BusesLIU Guo-ping, QIU Ji-yuan, LI Jian-wuExperience Exchange65-6820Design of USB Host System Based on ISP1161Experience Exchange68-70 