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It discusses the necessity of building college Students' Learning Monitoring and Early Warning System (SLMEWS) as well as points out the importance of parents' participation and assistance considering college students' social environment and background with information acquisition media of digital campus as its method and the school cloud as its technology kernel. It also puts forward a dynamic SLMEWS...
The vector field characters of ocean environmental noise and target radiated noise are intensively studied in this paper. Based on the vector hydrophone array, the models of coherence spectrum, phase spectrum and average complex sound intensity are established. By joint investigation of acoustic pressure and particle vibration velocity, we not only can determine whether the target signal exist in...
According to the requirements of traffic signal control, a new wireless traffic signal control system is developed in this paper. On the existing several kinds of wireless communication are compared and choose the most of them determine the most suitable for application in traffic controller technology in them. In the design of network nodes, CC2530 wireless MCU was used as a kernel part of the network...
Studies were conducted on inhomogeneous distribution of acoustic field in shallow water target radiated noise measurement. Acoustic vector processing theoretical model for this scenario was derived, and detailed examples showed that the inhomogeneous distribution of acoustic fields in testing sea is related to many factors, such as target sound source structure, radiation directivity, the bandwidth...
Identification of two-phase flow regimes is deadly required in many industrial processes and is difficult to perform objectively. Multi-sensor data fusion has been applied to the recognition of flow regimes of air/water flow in horizontal pipe. A specific fusion process architecture based on Dasarathy fusion model is introduced, and D-S evidence theory is adopted on the decision fusion level. The...
Pelagic manganese nodules from the East Pacific Ocean have been studied under polarizing and electron microscopes. It has been revealed that the manganese nodules are composed of core and stromatolite coatings. The structure and texture found in these nodules are characteristic of oncolite. Consequently, the pelagic manganese nodule is a manganese oncolite. Based on the types of stromatolites...
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