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With the growth of population and vehicles, transportation sector is taking up the major share of energy consumption and CO2 emission in BRIC Countries. This paper is intended to analyze the energy, emission and environmental situation of the transportation sector in BRIC Countries from an energy point of view. Historical data is used to investigate the energy consumption in BRIC Countries from 1990 to 2009. A method of calculating CO2 emissions is employed in transportation sector of BRIC Countries. The total CO2 emission and emission from sub-sector of transportation in CO2 emissions of the four countries are described. The polices to reduce energy consumption and emissions are suggested to give a richer understanding of current status in transportation environment of BRIC Countries

In order to guarantee the cooperation between behavior subjects and the highest efficiency in cooperative strategy, collaborative approaches or authority ways can be taken to design the system of behavior right configuration. The key point of cooperation among construction project subjects lies in the reflecting on the individual interest of behavior subject from overall cooperation surplus. The behavior right configuration system can adjust the distribution of overall cooperation surplus to realize the cooperation and the optimal overall benefit of the construction project, and finally achieves the win-win cooperation.

The mechanical properties and microstructure of the A356-T6 wheel hub based on low pressure die casting-hot flow forming process were analyzed by means of optical microscopy (OM), scanning electron microscopy (SEM) and tensile tests. Results showed that the size of the eutectic region and the morphology of the Si phase were the main factors affecting the mechanical properties and fracture morphology of the wheel hub. There was a uniform distribution of eutectic area and fine Si phase morphology in the microstructure of the upper rim and lower rim, moreover, the ultimate tensile strength and yield strength of the upper rim reached 282.4MPa and 185.1MPa, respectively. The fractures were mainly composed of fine quasi-cleavage platform and dimple. The microstructure of the rim showed a long strip along the deformation direction and the eutectic structure and Si particles were uniformly distributed. Irregular polygonal eutectic regions and coarse rod-like Si particles were accumulating in the spoke, causing a serious decrease in mechanical properties, especially in the spoke center and spoke R angle.

In order to prevent and handle all kinds of railway emergencies efficiently and improve emergency management efficiency and capability of Railway Bureau, it is of great importance to construct the emergency command system which takes geographic information system as core and is visualized, intelligent and networking. Based on the reality of railway emergency management, the three level structure of emergency command system, which takes the Railway Bureau as core and consists of the Ministry of Railways, the Railway Bureau and Divisions, is proposed. The overall frame structure of the system which consists of user layer, interface layer, application service layer and data layer is designed and the function of the system is analyzed. Some key technologies namely geographic information service platform technology, information resources integration technology and decision support techniques are introduced.