Electric power utilization

Miller, L.M, C.C Ho, P.C Shafer, P.K Wright, J.W Evans, and Ramamoorthy Ramesh. "Integration of a low frequency, tunable MEMS piezoelectric energy harvester and a thick film micro capacitor as a power supply system for wireless sensor nodes." 2009 IEEE Energy Conversion Congress and Exposition, ECCE 2009. 2009. 2627–2634.