2Numerical Analysis of Dynamic Temperature Field and Concentration Field in the process of Underground Coal Gasification349-353
3Profile Constructing and Elevation Designing of Soil Reclaimed by Hydraulic Dredge Pump in Mining Areas354-357
4Occurrence and Distribution of Minor Toxic Elements in Coals of Fengfeng Coalfield, Heibei Province, North China358-362
9Characteristics of Extractable Organic Matter in PM10 of Urban Area--Case Study of Northwestern Beijing383-387
11Design and Application of Estimation Software for Safety Reliability of Mine Ventilation System393-398
14Non-Dimensional Expression for Backflow Distances of Smoke and Hot Gases in a Roadway or Tunnel Fire407-410
17Application of Multi-objective Programming in Water Resource Management of Western Changyuan419-423
19Two-Dimensional Bertrand Game Model and Its Risk-Profit Equilibrium in an Uncertain Environment429-432