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The corrosion behavior and fracture mechanisms of rock wool have been studied. After different corrosion test, morphologies of rock wool fibers were obtained using SEM. The leaching rate of non-siliceous cations was measured using ICP-MS. Elemental analysis and the structure of the fiber surfaces were investigated by SEM-EDS and XRD. The results revealed that the corrosion of rock wool fibers in sulfuric acid solution was primarily attributed to calcium, magnesium and aluminum ion depletion. Rock wool fiber dissolution begins by the exchange of network modifier ions via metal-proton exchange reactions, then a partial removal of network intermediate ions by Al,Fe-proton exchange reactions followed by the liberation of partially detached Si tetrahedrals.

The paper gives the process of building the model of the Traffic Testing Field’s stationary scene which includes the acquisition and modifying of the texture, the building of the model and testing simulation. In the process, the model builder uses Geometry tool, Face tool, billboard tool and so on to build the model. Through testing and simulating, the model turns out to be a perfect simulation.

The research on monitoring and predicting drivers’ fatigue state has remarkable effect on prevention of traffic accidents, using the CCD image sensor camera as the image acquisition device of driver’s face and the 940nm infrared emitting diode as the light supplementary device and 3-points light supplementary had been utilized, the light supplementary system had been optimized by the experiment of infrared light supplementary which proceeded by means of combining the orthogonal experiment and expert fuzzy evaluation. The research result makes great sense to the monitoring of drivers’ fatigue state and traffic safety

Drivers are used to steering when they meet obstacles in order to protecting the measure and lives. Freecod-data collector, dynamics GPS and the sensors of steering degree was utilized to study the rule of driver steering velocities, the relationships between maximum steering velocities and distance, and as well as maximum steering velocities and driving velocities were eastablished. The results show that drivers steering operation includes five periods and also indicates that driver maximum steering velocities is changing with distance in nagitive and driver maximum steering velocities is changing with distance in positive-linear. The regressive formulas were also given. This research help us to comprehend driver behavior under emergency.