Wen-Jong Wu received his B.S degree in Civil Engineering, National Taiwan University, and his M.S. and Ph.D. from Institute of Applied Mechanics, National Taiwan University in 1998 and 2003 respectively. He joined department of Engineering Science & Ocean Engineering, National Taiwan University as assistant Professor in 2003 and is currently Associate Professor there. He was with Sibley School of Mechanical and Aerospace Engineering, Cornell University as visiting scholar from 2008 to 2009. He is currently an Associate Professor with department of Engineering Science & Ocean Engineering, National Taiwan University. His current research interests include piezoelectric power transducers, vibration energy harvesting, wireless sensor networks.