Substation noise pollution as one of the most important environmental problems has been paid more and more attention. A model of substation sound barrier is built in this paper. On the basis of the model, the effects of sound isolation of the barrier with different positions, different heights are analyzed. The setting of the sound barrier that can bring best sound insulation effect will be obtained from the simulation results. Moreover, as the substation control buildings can be seen as barriers, the analysis of the sound barrier attenuation can provide a certain basis for the layout of substation buildings, and the setting of noise reduction barriers for noise controlling.

The PBA-containing hydrogels were produced by copolymerizing 3-acrylaminophenylboronic acid with acrylamide. Hydrogels swelling increases steadily with pH and glucose concentration. The boronate specific dye, Alizarin Red S(ARS) was incorporated into hydrogels film. Alizarin Red S displays a dramatic change in fluorescence intensity and color in response to binding to boronic acid. The sensitivity of hydrogels is improved significantly.