Peak concentrations and gradients for gentamicin aried considerably between animals, likely resulting from ariations in round window membrane permeability and rates of perilymph flow.
Most of the work was based on experiment results, and some empirical formulas of shock wave peak pressure, electroacoustical efficiency, and plasma parameters were obtained.
It makes the central maximum in the Airy pattern narrower and increases the depth of focus.Calculation results have shown that this kind of apodizer is superior to the phase-shifting apodizer.