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A piezoelectric plasma micro-thruster (PPMT) is being developed as a thruster for attitude adjustment of nano-satellites. The PPMT consists of a RF driven PZT film operating as a step-up voltage transformer, which can ionize neutrals and accelerate ions and electrons in plasma. The PPMT was driven with a low voltage through the thickness at the resonance frequency in the radial direction. To simulate...
In order to provide the basic theory and reference for the vertical actuator, a precision piezoelectric actuator is designed in the paper. Firstly, working principle and mechanical design are presented. Then motion principles of this actuator are investigated. Finally output characteristics, load characteristics and frequency characteristics are tested and analyzed. The research results reveal that...
It is a well known result that network coding may achieve better network throughput in certain multicast topologies. However, the practicality of network coding has been questioned, due to its high computational complexity. This paper represents an attempt towards a high performance implementation of network coding. We first propose to implement progressive decoding with Gauss-Jordan elimination,...
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