Physical principles for designing cellwise artificial materials with energy-absorbing/harvesting and wave guiding properties are discussed in the present work. We analyzed evolution of waves a one-dimensional lattice 3D massive potential wells light particles inside. The were coupled elastic springs represented soft-wall versions so-called stochastic billiards. A billiard could switch from repe...

Wave energy converters (WECs) often include a submerged heave reaction plate located at a depth where the surrounding water is minimally disturbed by the passing surface waves. Heave plates provide a relatively stationary and artificially massive body to which WECs transfer the reactionary forces generated as their power-takeoffs (PTOs) resist the motion induced by the incoming waves. To date l...

The energy storage devices are better in a motor drive system. The power distribution strategy for energy source, and energy storage, electric motor under various operation modes. This paper develops energy storage not implementing harmonic compensation in whole operating condition, also consisting peak power during acceleration absorbing regenerative power during deceleration, while comparing ...

Molecules are made up of atoms, which are composed of a positively charged nucleus and negatively charged electrons orbiting it at various energy levels. Light is composed of individual packets of energy, called photons. Electrons can jump from one orbit to another by either, absorbing energy and moving to a higher level (excited state), or emitting energy and transitioning to a lower level. Su...

Numerous engineering applications require lightweight structures with excellent absorption capacity. The problem of obtaining such may be solved by nature and especially biological properties. paper concerns an attempt to develop a new energy-absorbing material using biomimetic approach. structure investigated here is mimicking geometry diatom shells, which are known optimized in terms the resi...

The mean first passage time (MFPT) is calculated for a Brownian particle in a spherical domain in R that contains N small non-overlapping absorbing windows, or traps, on its boundary. For the unit sphere, the method of matched asymptotic expansions is used to derive an explicit three-term asymptotic expansion for the MFPT for the case of N small locally circular absorbing windows. The third ter...

Transitions to absorbing states are of fundamental importance in nonequilibrium physics as well as ecology. In ecology, absorbing states correspond to the extinction of species. We here study the spatial population dynamics of three cyclically interacting species. The interaction scheme comprises both direct competition between species as in the cyclic Lotka-Volterra model, and separated select...