Acoustic Propagation in porous materials , Fractional Calculus, Time domain modelling, Direct and Inverse problems , Biot Model-Equivalent Fluid Model, Double-layered porous materials, Causality and Kramers-Kronig relations.
Experimental characterization, Transmission, Reflection, Inverse problems, (non destructive testing- Ultrasound (50-500)kHz, Low frequency measurements in pipe (20 Hz-3kHz).
Ultrasonic propagation in Human Cancellous bone (Direct and Inverse scattering problems).
Inhmogeneous porous materials (wave splitting approach).
Non local effects (Fractional derivative in space domain).
Acoustic waves in Fractal materials (Non-integer dimensional space model, Fractal dimension).
Acoustic waves in Micropolar media, Gyration (rotational) waves.
Radiation function.