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We propose a new structure for piezoelectric energy harvesters. It consists of an elastic beam with two pairs of piezoelectric films operating with the fundamental flexural modes in perpendicular directions. A one-dimensional model is developed and used to analyze the proposed structure. The output power density is calculated and examined. Results show that, with simultaneous flexural motions in two...
The propagation of the transverse surface waves in an unbounded piezoelectric half-space with a viscous liquid layer between the half-space surface and an unattached electrode is analyzed. An exact dispersion relation is obtained from the equations of the linear theory of piezoelectricity. Results show that the wave speed is sensitive to the viscous coefficient, the mass density and the dielectric...
Polypyrrole(PPy) nanowires modified electrodes were developed by template-free electrochemical method based on graphite electrode. The Ag/PPy nanowires composited modofied electrodes were prepared by method of electrochemical deposition Ag with the condition of constant current density. The electrocatalytic reduction of nitrite based on Ag/PPy nanowires composited modified electrodes was developed...
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