1. Paradiso, J. A. & Starner, T. Energy scavenging for mobile and wireless electronics. IEEE Pervasive Comput. 4, 18–27 (2005).
2. Zuo, L., Scully, B., Shestani, J. & Zhou, Y. Design and characterization of an electromagnetic energy harvester for vehicle suspensions. Smart Mater. Struct. 19, 045003 (2010).
3. Shahosseini, I. & Najafi, K. Cylindrical halbach magnet array for electromagnetic vibration energy harvesters. In 2015 28th IEEE Int. Conf. Micro Electro Mech. Syst. 1051–1054 (2015). 10.1109/MEMSYS.2015.7051143
4. Sari, I., Balkan, T. & Kulah, H. An electromagnetic micro power generator for wideband environmental vibrations. Sensors Actuators, A Phys. 145–146, 405–413 (2008).
5. Seo, M., Choi, D., Han, C., Yoo, J. & Yoon, J. An electrostatic energy harvester exploiting variable-area water electrode by respiration. In 2015 28th IEEE Int. Conf. Micro Electro Mech. Syst. 126–129 (2015). 10.1109/MEMSYS.2015.7050902