Metal-Organic Framework (MOF) materials are often modified or functionalized, and then the crystal size and morphology of MOF materials are changed. In the process of preparing UiO-66 confined phosphomolybdic acid (PMA) composites (PU), the TiF4-modified PU (PMA + UiO-66) composite catalyst (TiF4-PU) was successfully synthesized by adding titanium tetrafluoride, and the catalytic desulfurization activity was excellent. Similarly, the reaction mechanism was investigated by means of infrared spectroscopy, Raman spectroscopy, XPS, and UV/Vis spectroscopy. The results show that the addition of TiF4 not only changes the appearance and color of the catalyst, but also changes the valence distribution of the elements in the catalyst. The number of oxygen vacancies in the MOF increases due to the addition of TiF4, and more electrons are transferred from the Zr-MOF to PMA to form more Mo5+, which improved the performance of oxidative desulfurization in comparison. Thus, a stronger strong metal-support interaction (SMSI) effect is observed for TiF4-modified PU catalysts. In addition, the quenching experiment of free radicals shows that ·OH radical is the main active substance in the oxidative desulfurization reaction over TiF4-PU catalyst.

This paper suggest 5m depth line is suitable depth for sea areas reclamation based on study of sea areas reclamation investing and established estimationmethods for spatial resource capacity of sea areas reclamation. Then Liaoning province in China was chose as a case to estimateitssea areas reclamation capacity. The result shown as follows: Depth of sea areas near the coastline in Liaoning province is smaller than 5m in most sea fields. Length of coast with under water slope angle less than 1°is 1988.77km and account for 52.25% coast of Liaoning province. The total areas of sea reclamation capacity is 211714.06hm2.Its distributes mainly in Dalian sea areas, Jinzhou sea areas and Yingkou sea areas with percentage of 47.19%，18.78% and 14.53%,respectively.

Avalanche transistor is a ideal device which can provide quick response and high peak power simultaneously, and this device is cheap. A pulse generator based on avalanche transistor is designed in this paper; this generator can generate transient current pulse. This generator can be easily triggered, what is more, the performance of this generator is stable and it has a well-behaved load capacity. Therefore, this generator is suitable for using as the magneto-optical switch in the all-optical communication network. Future work will focus on further shorten the duration and rising time of the pulse.

Seeing that human face features are unique, an increasing number of face recognition algorithms on existing ATM are proposed. Since face detection is a primary link of face recognition, our system adopts AdaBoost algorithm which is based on face detection. Experiment results demonstrated that the computing time of face detection using this algorithm is about 70ms, and the single and multiple human faces can be effectively measured under well environment, which meets the demand of the system.