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This paper reports a novel design of a quartz crystal microbalance (QCM) for effective preservation of high quality factor and sensitivity in liquid. Many previous attempts have not achieved effective solutions to improve the QCM's performance in liquid. It is challenging to create a device without serious liquid damping effect. Our new design removes this dependence through an acoustic loss isolation...
The ferroelectric plasma thruster (FEPT) is being developed for use in micro-spacecraft propulsion, large scale structure vibration damping, and proximity operations. An advantage of the FEPT over other thruster technologies such as colloid and field emission electric propulsion (FEEP) thrusters is that the FEPT operates with a single power supply. Additionally it is believed that the FEPT is self-neutralizing...
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