Yifeng Wang

TL;DR: In this article, the authors presented a multi-stable electromagnetic-induction energy harvesting (MEH) system by magnetic levitation oscillation, which has a nonlinear restoring force and a multiwell restoring force potential, offering an improvement upon their linear counterparts by broadening its frequency response.

TL;DR: The authors extend this application through introducing a self-powered ZigBee wireless sensor node that is powered by the magnetic levitation energy harvester and communicated wirelessly with the ZigBee coordinator.

TL;DR: Wang et al. as discussed by the authors developed a prototype for harvesting thermoelectric energy from railway track, which helps power rail-side sensors in off-grid and remote areas without depleting natural resources.

TL;DR: In this article, the theoretical modeling and experimental verification of a quad-stable non-linear electromagnetic-induction energy harvesting (QEH) system is presented, where the suspended magnet of the QEH system consists of two aluminum caps that are circumferentially filled with copper beads for smooth axial movement.

TL;DR: An application case of the technology is introduced: the sensor nodes of the wireless sensor network are powered by the electromagnetic energy harvester and lithium battery with DC-DC boost converter, thereby continuously monitoring the railway track state; based on the Littlewood–Paley wavelet analysis of measured railway track acceleration data, the abnormal signal caused by the wheel out-of-roundness can be detected.