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In this paper, TiO2/diatomite and Ce-TiO2/diatomite were prepared by sol-gel method in order to improve the spectrum responding range and its photocatalytic effect. The obtained samples were characterized by means of X-ray Diffractometer (XRD), Scanning Electron Microscope (SEM), Infrared Absorption Spectroscopy (FT-IR) and so on, and the photocatalytic activity was evaluated by methylene blue degradation. The heat stability of TiO2/diatomite was improved by Ce-doped; TiO2 was successfully loaded on diatomite through physical and chemical action. The de-coloring ratio of methylene blue of the two composite materials were similar under UV light, Ce-TiO2/diatomite was higher under visible light, it reached to 80%, and it kept 65% after the five times repeated using of Ce-TiO2/diatomite.

Highly active titanium modified 3D mesoporous material Ti-TUD-1 with different Si/Ti molar ratios (10, 25, 50 and 100) were synthesized using TEA as a template and TEAOH as an auxiliary template. The Ti-TUD-1 materials were characterized by means of XRD, TEM and UV-vis DRS. The results showed that Ti was successfully incorporated in the framework of TUD-1 by forming Ti-O-Si bonds. The catalytic activities were tested in a high pressure micro reactor using FCC diesel and the results showed that the HDS efficiency of Ti modified TUD-1(Si/Ti=50) was better than TUD-1, as high as 98.15%.

In this paper, they are proposed that the Agent-based single intersection traffic control and analysis of the basic structure of a single intersection based on Agent, modeling them. Single intersection is the basic control unit of the entire transportation system. The superior single intersection control is protecting transport network uptime. Agent-based traffic control combines the advantage of fuzzy control in complex transportation system; the fuzzy control technology used in traffic lights control decisions

For the deficiencies in the on-site skill assessment of crane operators, an on-site skill examination system for crane operators based on distributed cooperative control technology is designed. The functions and implementations of various monitoring sensor module, wireless data acquisition system and the hosting control center are discussed. This system can help to improve the scientificity and fairness of the assessment work of crane operators.

In this paper, we prepared a series of powders (pure TiO2 and Ce-doped TiO2) by sol-gel method and characterized by X-ray diffraction (XRD), scanning electron microscope (SEM), infrared spectrometer (IR) and UV spectrophotometer. The results indicated that the doped Ce influence the crystal structure of TiO2 and improve the temperature of crystal transformation. In the degradation of MB experiment, after 5 hours, the degradation efficiency of them (pure TiO2 , Ce-doped TiO2 and P25) under UV light is about 99.1%, while under visible light,Ce-doped TiO2 is about 60% higher than pure TiO2 and P25, up to 73%. This illustrates that the doped Ce increase the absorption to visible light and improve the photocatalytic efficiency.Key Words: TiO2, Ce-doped TiO2, photocatalyst, sol-gel method, crystal form