From an acoustical point of view, bone is a complex medium as it is heterogeneous,
anisotropic and viscoelastic. This chapter reviews the basic notions of physical acoustics …

Therapeutic ultrasound can induce changes in tissues by means of thermal and nonthermal
effects. It is proposed for treatment of some brain pathologies such as Alzheimer's …

In this work, the accuracy, efficiency and range of applicability of various (approximate)
models for viscothermal wave propagation are investigated. Models for viscothermal wave …

Integrated, compact, diesel after treatment system that combines selective catalytic reduction
(SCR) for NO X control with a reactive muffler to reduce exhaust noise was designed and …

Ultrasonic wave propagation in thermoviscous fluid with pipeline shear mean flow in the
presence of a temperature gradient is investigated. On the assumption of irrotational and …

Charge air coolers (CACs) are used on turbocharged internal combustion engines to
enhance the overall gas-exchange performance. The cooling of the charged air results in …

The attenuation of sound due to the interaction between a low Mach number turbulent
boundary layer and acoustic waves can be significant at low frequencies or in narrow tubes …

Driven by emission regulations in the US and the EU exhaust systems on new diesel
engines are equipped with both a catalytic converter (CC) and a diesel particulate filter …

In the last decades the continuously tightening limitations on pollutant emissions has led to
an extensive adoption of after-treatment devices on the exhaust systems of modern internal …

Inside micro cavities, specific dissipative mechanisms influencing acoustic wave
propagation occur due to viscous and heat-conducting nature of the fluid. This work focuses …