We proposed an effective acoustic abatement solution comprised of periodic resonators and multi-panel structures with porous lining, which incorporates the wideband capability materials low-frequency advantage locally resonant together. Theoretical model numerical implementation are developed validated. Two-dimensional poroelastic field expressions used resonator forces incorporated. The result...

We have developed a symmetry-adapted modeling procedure for molecules and crystals. By using the completeness of multipoles to express spatial time-reversal parity-specific anisotropic distributions, we can generate systematically complete multipole basis set describe any electronic degrees freedom in isolated cluster systems periodic The is then achieved by expressing Hamiltonian terms linear ...