Background: Recently, ultrasonic neuromodulation research has been an important and interesting issue. Ultrasonic neuromodulation is possible by the use of low-intensity transcranial focused ultrasound (tFUS) to stimulate or inhibit the neural structures. The primary capability of this method is the improvement in the treatment progress of certain neurological and psychiatric disorders noninvas...

Micrometer-scale acoustic waves are highly useful for refined optomechanical and acoustofluidic manipulation, where these fields are spatially localized along the transducer aperture but not along the acoustic propagation direction. In the case of acoustic tweezers, such a conventional acoustic standing wave results in particle and cell patterning across the entire width of a microfluidic chann...

We have simulated the generation of Ca ii H2V bright grains by acoustic shocks. We employ a one-dimensional, non-LTE, radiation hydrodynamic code, with 6 level model atoms for hydrogen and singly ionized calcium. We drive acoustic waves through a stratiied radiative equilibrium atmosphere by a piston, whose velocity is chosen to match the Doppler shift observed in the FeI 396.68 line in the H l...

Anisotropies of the cosmic microwave background are thought to be due perturbations primordial medium, which, post recombination, lead formation galaxy clusters and galaxies. Aims: We analyse perturbation wave modes medium at before consisting a fully ionized baryonic plasma, strong black body radiation field, cold dark matter. Methods: use linear theory relativistic equations motion, utilising...

We investigate the viscoelastic properties of confined molecular nano-layers by time resolved optical pump-probe measurements. Access to the elastic properties is provided by the damping time of acoustic eigenmodes of thin metal films deposited on the molecular nano-layers which show a strong dependence on the molecular layer thickness and on the acoustic eigen-mode frequencies. An analytical m...