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The smart grid is a hot topic recently, in this paper the wireless sensor networks is introduced to apply the smart grid. The rapid development of wireless sensor network (WSN) technology has brought on a new revolution in the monitoring and controlling field. The problem studied in the paper is that in the WSNs how to select the active sensors when they only provide a service. We established a mathematical...
With consideration of some practical difficulties of fault knowledge sharing and application in current aviation maintenance, the expression modeling and integration application of deep and shallow aircraft fault knowledge are studied. According to widely used knowledge management technology such as case-based reasoning and diagnostics expert system, ontology-based fault case knowledge model and modelbased...
The multiphase PM synchronous motor drive systems have been developed rapidly in modern industry and agriculture. In this paper, an adaptive nonlinear control design is applied to a multiphase PM synchronous motor system. Based on the deduced mathematic model with both electrical and mechanical dynamics of motor, the back stepping and fuzzy neural network control schemes are used to design the speed...
Combining extension engineering method with cluster analysis, the classic and limited matter elements were constructed according to air quality standards and main air affecting factors. The logical domain was extended from (0, 1)to (-∞ ,+∞), meanwhile, the quantitative analysis in the classic matter-set which only judged by Yes or No was extended to qualitative analysis, which could show the administrative...
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