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Titanium dioxide (TiO2) film was prepared on activated carbon fibre (ACF) by hydrolysis technique, using sulphate titanium as raw material. Based on the techniques of photo catalytic degradation using TiO2/ACF, and 254nm UV-ray as the light sources, aqueous phenol solution of 40mg/L was photo catalytic decomposed over TiO2 film. The result showed that TiO2/ACF exhibited a degradation efficiency of...
In the simulation platform of high-speed train control system, it is necessary to simulate the track circuit occupation in order to provide basic conditions for other simulated equipment to calculate movement authority or generate track circuit code. A problem with the simulation of track circuit is that there may be more than one track circuit sections corresponding to one kilometer post. To solve...
To investigate the influence factors of the soil dynamic characteristics under traffic load, a series of undrained dynamic triaxial tests are conducted, at different cyclic stress level, cycle number and confining pressure. The research shows that while being subjected to dynamic loading, such as traffic load, the soil's stiffness softening is occurring more or less when the cycle number is increasing...
Charge coupled devices (CCD) have been tested at widely differing dose rates to examine the radiation tolerance dependence on the dose rates. The test results show a maximum tolerance of CCDs at 10.2 rad(Si)/sec, a slight reduction in tolerance at 34.8 rad(Si)/sec and a quite precipitous roll off when moving down to 1 rad(Si)/sec and 0.1 rad(Si)/sec. The degradation of the dummy output voltages and...
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