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ZY-3 was the first commercial high resolution stereo mapping satellite of China, launched in 2012. It provided real time and supplementary data for geographical conditions census and monitoring. In this paper, the land cover and land use information of the Ezhou Huarong district in 2012 and 2013 was extracted respectively based on ZY-3 images obtained in 2012 and 2013 through the object-oriented classification...
Recently, there are many improvements in Internet of Things (IOT). Through the recombination and optimization, the real-world devices can provide their functionality as web services in IOT. However, it is very difficult to cost-effectively access to the Internet of Things due to the environmental changes. In this paper, firstly, a Petri net-based model for service composition in IOT is proposed, which...
In this paper, a simulation model is proposed to describe H2O adsorption-induced curvature of a nanocantilever, based on the energy transfer between potential energy of adsorbates and elastic energy of the bending cantilever. For most cantilever sensors, the basic structure is a silicon beam coated with a metal layer on the top, and aluminum is chosen in this paper. Because the native oxide is usually...
Spectrum detection technology in cognitive radio includes two processes: channel sensing and channel monitoring. For each process, longer detection time may result in fewer opportunities for cognitive radios to fill in spectrum holes, while shorter sensing time may make cognitive radios miss the chance to detect the presence of primary users which will bring harmful interference to primary users....
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