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A TA1 (Ti alloy)/low alloy steel (LAS) composite plate was manufactured by explosive welding. The effects of the bonding interface microstructure on the mechanical properties and fracture behavior of the composite plate were investigated. The results show that the interface has a wavy structure with intermetallic compounds (IMCs) enclosed by a steel matrix. The metallurgical bonding interface was achieved by local diffusion, with a several micrometer-thick diffusion layer. Two kinds of microcracks were formed in the IMC region and the diffusion interface. Microcracks in the IMC region propagate with difficulty due to the impediment of the IMC/steel interface. The microcracks initiated at the interface need to propagate into the fine-grain steel matrix before crack connection and delamination. The shear strength of the TA1/LAS composite plate was over 350 MPa. The composite plate could be bent up to the equipment limit (135 degrees). Excellent mechanical properties were obtained since the crack propagation was hindered by the refined or elongated steel grains induced during explosive welding.

This paper analyzed the Grey response of infrastructures on the scale of Oasis cities in Xinjiang by Comprehensive Grey Relation Degree method with city date in 1978–2007. The results showed: (1) Grey Response Degree(GRD) of infrastructure on cities comprehesive scale are middle response type.(2) Cities have the same minimum GRD of infrastructure, which stabilized about 0.5. But the maximum GRD of infrastructures are different. (3)The variations of GRD of temporal belong to declined, stability and ascending type.

This paper studies the evolution of the spatial pattern of economic structure of the Economic Belt of the Northern of Tianshan Moutains in Xinjiang in 1978–2007 with the relative information and data by the combination of methods of ESDA-AcrGis. The results showed that: (1)The economic pattern of EBNSTM in the study period is not obvious change, and the economic differences had reduced in 1978–1990 and rapidly had expanded in 1990–1995. (2)The economic center as Urumqi, Karamay and Shihezi cities are in the accumulation stage, and have been weak diffusion to the surrounding counties. The “Space Matthew” in the cities and countries of economy backward are effecting significantly. (3)Both differences in resource endowments and economic development strategy are the important factors to the evolution of economic structure of EBNSTM.

This paper analyzed Grey Effect of infrastructures on city comprehensive scale of 22 cities in Xinjiang by Comprehensive Grey Relation Degree (CGCD) method with city date in 1978–2007. The results showed: (1) Grey Effect Degree(GED) of infrastructure on city scale are middling effect and strong effect types. (2) The cities which economic scales are impacted most by infrastructure are of 45.5% of total cities. (3) GED increase mainly in 1978–2007.

This paper analyzes the problems and trends of water environment and mechanisms of the problems by Ridit Analysis and other qualitative and quantitative analysis methods with water monitoring data and economical data in Xinjiang in 2001-2006. The results show: (1)water qualities of rivers of Xinjiang are slightly pollution and that of Northern is more serious than that of southern in Xinjiang, and water qualities of rivers far from urban are better than those across urban. The trend of water quality change of river is stable in 2001-2006. (2) Water qualities of lakes and reservoirs are middle level pollution, and water quality of lakes is better than that of reservoirs. The trend of water quality change of lakes and reservoirs are stable. (3) Water qualities of drinking-water source are good totally and its trend of changes is stable. Quality of groundwater of Urumqi city is badly, and its trend of changes is stable. The main reasons leading to water environment problems are: (1) industrial structure are heavy that cause larger pollution water.(2) Economy of Xinjiang is in the Stage of rapid developing that requires excess water. (3)Urban infrastructure is weak. (4) Pollution of rural is heavy, and (5) protractions of drinking-water source is not well.