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The paper reports a novel static cantilever sensor (surface-stress-style) with long-term repeatable detecting sensitivity to trace TNT vapor. A siloxane-based TNT-sensitive bi-layer is self-assembled directly on the SiO2 surface of the surface-stress-style micro-cantilever. This method is, for the first time, used to replace the traditional self-assembled monolayers (SAMs) of thiols on Au (111) surface...
Using piezoresistive SiO 2 microcantilever technology, we present an ultra-sensitive chemical sensor for trace organophosphorus vapor detection. A self-assembled composite layer of Cu 2+ /11-mercaptoundecanoic acid is modified on the surface of the sensing cantilever as a specific coating to capture PO containing compounds. Experimental results indicate that the sensor can be quite...
In this paper, a distributed robust control scheme is proposed for formation stabilization of noholonomic wheeled mobile robots (WMRs) with parametric uncertainty and actuator saturations. A quasi-LPV model is first established to describe the error dynamics of each WMR. For a given cost function, we generate distributed optimal control problems for each interacting robot whose error dynamics and...
In the framework of linear matrix inequalities (LMI) optimization, an output feedback Hinfin control scheme for uncertain discrete-time systems with actuator saturation is presented. The key of this work is to introduce a dissipation constraint combined with minimizing performance level, and then to discuss the closed-loop Hinfin performance. Moreover, we propose the method for on-line solving the...
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