An extended thermal particle boundary condition is devised to more efficiently and accurately model laser–plasma interactions in overdense plasmas. Particle-in-cell simulations of such require many particles per cell, a large region background plasma often necessary correctly mimic semi-infinite avoid electron refluxing from truncated plasma. For long-pulse lasers picoseconds, constraints can b...

The online frequency estimation of forced harmonic vibrations on a building-like structure, using nonlinear flexible vibration absorber in cantilever beam configuration, is addressed this article. Algebraic formulae to compute the excitation vibrating mechanical system solely available measurement signals position, velocity, or acceleration are presented. Fast algebraic can, thus, be implemente...

A metamaterial composed of thin metallic strips as an efficient broadband absorber in the mid-infrared spectrum is investigated. Here matching between dielectric and geometrical properties individual elements critical to ensure high absorption. Detailed theoretical analysis based on electric dipole approximation performed characterize absorption scattering unit cell results are used design such...

This paper investigates the optimization of a non-traditional vibration absorber for simultaneous suppression and energy harvesting. Unlike traditional absorber, has its damper connected between mass base. An electromagnetic harvester is used as tunable damper. attached to primary system that subjected random base excitation. analytical study conducted by assuming excitation white noise. In ter...

Magnetic nanoparticles (NPs) have attracted much interest due to their special physicochemical properties such as enhanced magnetic moment and coercivity different from the bulk and atomic counterparts. Incorporation of the inorganic NPs into a polymer matrix has extended the particle applications such as in high-sensitivity chemical gas sensors due to the advantages of polymeric nanocomposites...