Index for 2pPA

• 2pPA1. Wave propagation in a unique class of inhomogeneous porous materials.
• 2pPA2. Calculation of the poroelastoacoustic response of a multilayered infinite planar porous material excited by acoustical and mechanical line sources.
• 2pPA3. A modal reduction technique for the finite-element formulation of Biot's poroelasticity equations in acoustics.
• 2pPA4. Sound velocity measurements in partially water saturated sand.
• 2pPA5. Effects of water vapor on acoustical properties of glass beads and Ottawa sand.
• 2pPA6. Nonsmooth impedance profile identification using reflection data.
• 2pPA7. Utilizing a modified surface roughness parameter for describing rough surfaces with an equivalent impedance.