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An on-line adaptive control based on parameter identification is proposed to solve the problem that motor parameters vary with the changing working environments, which results in the precision of control system to be affected. The motor resistance and inductance are identified by using recursive least squares method with forgetting factor. The parameters of PI regulator are obtained based on the requirement...
The actively tunable plasmonic multi-channel wavelength demultiplexer (WDM) based on graphene sheets and ring resonators is proposed and numerically investigated by utilizing finite element method (FEM) simulations.
Trains are a main kind of transportation tools in China. Aiming at solving the inconvenience problem of buying a ticket, the Ministry of Railways of PRC developed an online train ticket booking system called 12306 website (http://www.12306.cn). In this paper, the online ticket booking system is analyzed by using the Petri net modeling method, furthermore, the PIPE software is used to draw a Petri...
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