A shock wave is a transient pressure disturbance that propagates rapidly in three-dimensional space. It is associated with a sudden rise from ambient pressure to its maximum pressure. A significant tissue effect is cavitation consequent to the negative phase of the wave propagation. The current authors summarize the basic physics of shock waves and the physical parameters involved in assessing ...

There is currently little feedback as to whether kidney stones have fractured during shock wave lithotripsy. Resonant scattering of the lithotripter shock wave was used here to differentiate intact and fractured stone models in water. Scattering, including reflection and radiation due to reverberation from within the stone, was calculated numerically with linear elasticity theory and agreed wel...

The effects arising from accelerated and decelerated motion of a point charge inside a medium are studied. The motion is manifestly relativistic and may be produced by a constant uniform electric field. It is shown that in addition to the bremsstrahlung and Cherenkov shock waves, the electromagnetic shock wave arises when the charge particle velocity coincides with the light velocity in the med...

Dear Editor, I read with interest the manuscript by Mazzucchi et al. on the comparison between two shock wave regimens using frequencies of 60 and 90 impulses/min for urinary stones. In their study, the authors randomized one group to 3000 impulses at a rate of 60 impulses/min and another group to 4000 impulses at a rate of 90 impulses/min. Their results showed no significant differences in sto...

In this thesis, I study propagation of gravitons in the shock wave geometry in the context of the AdS/CFT correspondence, with the goal to uncover some constraint on the supergravity action in the AdS space. In studying the shock wave geometry in an anti-deSitter (AdS) space, I find that the functional form of the shock wave metric does not receive a' correction, but the wave profile does. Then...

δ-Shock wave type solutions in the multidimensional system of conservation laws ρt +∇ · (ρF (U)) = 0, (ρU)t +∇ · (ρN(U)) = 0, x ∈ R , are studied, where F = (Fj) is a given vector field, N = (Njk) is a given tensor field, Fj , Nkj : R n → R, j, k = 1, . . . , n; ρ(x, t) ∈ R, U(x, t) ∈ R. The well-known particular cases of this system are zero-pressure gas dynamics in a standard form ρt +∇ · (ρU...