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12 October 2008 Prof. Liao said, ¡§We are excited that the significance and contribution of our research to energy have been recognized internationally. Our paper investigated energy harvested from vibration using piezoelectric materials as an alternative to renewable energy. Piezoelectric power generators were used to transform the mechanical energy from vibration into electrical energy, which can replace batteries to supply power to mobile and wireless microsystems. Without using batteries, the self-powered systems will be more environmentally friendly since they are using otherwise wasted mechanical energy from the vibration sources.¡¨
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