A highway distress and preventive measures decision support system based on WebGIS and J2EE architecture were studied, and the key issues for the system are pre
This paper makes researches on multiple independently reentry vehicle (MIRV) ballistic mis- sile interception. It breaks through traditional intercepting method
The flame retardancy of aromatic thermotropic liquid crystal phosphorus-containing copolyester,TLCP,on PET was investigated.The results show that the presence o