Multistability is the phenomenon of multiple coexistent stable states, which are highly
sensitive to perturbations, initial conditions, system parameters, etc. Multistability has been …

The last decade has witnessed significant advances in energy harvesting technologies as a
possible alternative to provide a continuous power supply for small, low-power devices in …

Mechanical kinetic energy harvesting, which converts the mechanical motions and
vibrations that are commonly available in the surrounding environment to electrical energy …

Vibration energy harvesting and sensing is a traditional and growing research field in which
various working mechanisms and designs have been developed for an improved …

The increasing population of the elderly and motion-impaired people brings a huge
challenge to our social system. However, the walking stick as their essential tool has rarely …

Physical vapour deposition (PVD) is a well-known technology that is widely used for the
deposition of thin films regarding many demands, namely tribological behaviour …

The homotopy perturbation method (HPM) was proposed by Ji-Huan. He was a rising star in
analytical methods, and all traditional analytical methods had abdicated their crowns. It is …

Piezoelectric microsystems are of use in areas such as mechanical sensing, energy
conversion and robotics. The systems typically have a planar structure, but transforming …

The evolution of artificial intelligence of things (AIoT) drastically facilitates the development
of a smart city via comprehensive perception and seamless communication. As a foundation …

With the increasing demand for clean and sustainable energy, self-powered technologies
based on environmental vibrations have attracted a lot of attention recently. Natural vibration …