Article Title,Year,Volume,Issue,Page Range,Author Multi-Level Fuzzy Evaluation Method for Civil Aviation System Safety,2007,42,1,104-109,Liu Selection of Routes for Avoiding Serious Accidents in Transportation of Hazardous Materials,2006,41,4,491-495,Li Comprehensive Evaluation Approach of Road Traffic Safety Based on Artificial Neural Network,2006,41,4,496-500,Li Development of Intelligent Flight Conflict Resolution System,2006,41,5,589-593,Ma