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The communications in tunnels is always a severe problem for its special environment. The multi-hop wireless self-organizing network, which uses many wireless points (WPs) to relay the signal as a virtual Base Station (BS), with characteristics of lower power, self-organizability can be the most appropriate solution to it. This paper analyzes system power efficiency of this multi-hop network and numerical...
A rotary MRF (magnetorheological fluids) damper is introduced in tension control systems. An experimental tension control system is designed by using the MRF damper as tension control actuator. Control strategies of the tension control system are studied. A fuzzy-PID feedback controller for the tension control system is constructed, modeled, and numerically simulated by means of MATLAB/ SIMULINK,...
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