1Discuss of the Enterprise Safety Evaluation ProcessZHANG Xing-kai, ZHOU Jian-xin, LI Biao1-32Research of Accident With Theory of Safety Rheology-MutationXIAO Hong-fei, HE Xue-qiu4-73On Establishing the Safeguarding System of Safety ProductionSHEN Hui-zhang8-104Consideration of the two elements--Objectives and OH&S management programmes in OH&S management systemZHENG Rui-chen11-155Research on Improving Administrative Standard of Work Safety in MinesCAI Wei, MA Shang-quan16-206On Innovation of Administrative System for Coal Mines Work Safety In ChinaLIU Guo-bing, GU Xiu-gen21-267Disscussion About Safety Acceptance of DCSControll SystemXIE Ting-yu27-328Theory of Essential Safety and Practice of Xu Zhou Coal Mining GroupThe Research Group of "The Propaganda and Education Outline of Staff Essential Safety" in Xu Zhou Coal Mining Group33-389Application of particle system arithmetic in three-dimensional visualization of mine ventilationCHEN Xue-xi, ZHOU Gang, WANG Ping39-4310Brief Analysis on the Characters of Ventilation System of Aged MineWANG Zhi-liang, XU Jing-de44-4711Study on Thermal Degradation and Flame Retardant Mechanism of Hemp Cellulose Treated with Inorganic SaltsGAO Ming, REN Xue-jun48-5212Mining Technology with Gas Resource by MembraneZHAO Yu-qi, WU Jian, LU Ming-xin53-5513Study of Main Roof Stability Druing First Weighting On Linxi Coal MineZHOU Qiao, XU Hai-tiao56-6014The Survey of Gas Existing Parameter in the "Two Hards" (Hard Roof and Hard Coal Seam) Very Thick Coal SeamHAN Xiao-zeng61-6415On Comprehensively Mining Top Coal under the Condition of "Two Hard" in Da Tong Yun Gang MineZHAO Jun65-6616Study of Integration Using Technology for Mine water in Haizi MineWANG Quan, LI Zhong-kai67-6917The Application of Inner Interlocked Tail Road in 2308 Comprehensively Mining Sub-level Work Face at Si He Coal MineWANG Zhi-yu70-72,7818Research on the Acting Mechanism and Application of Metal Net in Bolt Net SupportGAO Shun-ping73-7419Analysis and Research on the Source of Water Permeance in Work Face 7132 of Long Dong Coal MineLI Ji-tian, JI Ping, ZHANG Wen-min75-7820Study on the Position Design and Economic Benefit of Mine WorkingsLIANG Bing-duo79-80 