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The relationships between sediment concentration and the conventional pollutants in Lanzhou section of the Yellow River, and the influences of sediment on water quality parameters were investigated in this paper. The results indicated that: (1) the total CODMn of water sample, both in the muddy water samples and water samples under pretreatment with acid, increased significantly with increasing sediment...
As to the major building in the city currently, the traditional fixed signs of the fire evacuation system can't meet people's security needs any longer and the intelligent fire evacuation system has been the current development direction. This article combined the Dijkstra's algorithm with intelligent fire evacuation system self-developed which identified the fires by analyzing the fire linkage signal...
Ground penetrating radar (GPR) is often used in detecting void and cavities under the airfield runway. Delay and Sum (DAS) imaging method based on time-domain focusing of pulse-echo radar data is commonly applied in imaging technique. Image quality depends on echo amplitude and time delay of backscattered signal that picked up from elementary cell. In this paper, in order to improve the image quality,...
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