1A Realizing Scheme of Mine Through-the-earth Communication System with DigitizationLIU Xiao-pei, HUANG Jian, LIU Ling-zhiLaboratory Research1-32The Analysis and Modeling of Automatic System of Machinery-tracked of Fully Mechanized Coal MiningZHANG Shou-xiang, WANG Ru-lin, LIU FangLaboratory Research4-73MIS and GIS Information Integration in Coal Resource Management SystemZHANG Sheng, SHEN Yan-guang, LI Yan, YUAN Wen-shanLaboratory Research7-94The Research of Power Supply of the High-voltage Side Circuit of Optic Electronic TransformerCAO Hong-bo, ZHAO Chen, YANG Zhou, NI Kang-renLaboratory Research10-125The Signal Processing Technology of Stubble in Steel RopeTIAN Zhi-yong, TAN Ji-wen, WEN YanLaboratory Research13-156The Application of Spread-spectrum Technology in Flux Measuring of Doppler UltrasonicLaboratory Research15-177The Research of Using AC/AC Frequency-converter Technology to Realize Load Starting of MotorCHEN Bai-sheng, HUANG Hui-ying, XIN Yi-boLaboratory Research18-218The Control Algorithm of Matrix Converter and Its Simulation AnalysisZHU Yuan, LI Ming, WANG JunLaboratory Research22-259A Method of Fuzzy Pattern Recognition Applied in Coal Preparation SystemCHENG Yong, WANG Mian-huaLaboratory Research25-2710The Research and Application of Intelligent Energy-saving Controller for MotorYUAN Xiao-ping, HE Yu-wei, SUN Xian-xu, ZHAO Jian-guang, XIE JunTechnical Progress28-3011The Communication between iFIX Configuration Software and Relational Database Access Based on ODBC TechnologyGENG Yi-wen, WU Xiao-jieTechnical Progress30-3212The Application of Giant Magnetic Resistance in the Current Measuring and Protection of Switching Power SupplyTechnical Progress33-3513The Method of Fault Positioning of Single-fault to Ground and Single-line Breakdown for Distribution NetworkZONG Jian, LI Guan-yi, LI Xiao-bo, WANG Chong-lin, CHEN JingTechnical Progress35-3714The Design of Industrial Ethernet Exchanger Used in Coal MineTechnical Progress38-4015The Application of Industrial Ethernet in Paste-filling System of Coal MineWU Li-bo, YAN De-kun, YAN Li-liTechnical Progress40-4316The Design of Displacement Measuring System Based on High-speed Single-chip MicrocomputerHUANG Xiang-huiTechnical Progress44-4617The Design of Online Upgrading Technology for the Client Application Software of Coal Mine Management Information SystemTechnical Progress46-4818The Application of Embedded Ethernet Gateway in Substation Automation SystemTechnical Progress49-5119The Development of Detector of Coal Level of Bunker of Shaft and Its ApplicationTechnical Progress51-5320The Design of Tester for Parameters of Photocoupler Controlled by PCTechnical Progress53-54 