Gas flows through micro shock tubes are widely used in many engineering applications such as micro engines, particle delivery devices etc. Recently, few studies have been carried out to explore the shock wave excursions through micro shock tubes at very low Reynolds number and at rarefied gas condition. But these studies assumed centered shock and expansion waves, which are generally produced b...

OBJECT Shock waves have been experimentally applied to various neurosurgical treatments including fragmentation of cerebral emboli, perforation of cyst walls or tissue, and delivery of drugs into cells. Nevertheless, the application of shock waves to clinical neurosurgery remains challenging because the threshold for shock wave-induced brain injury has not been determined. The authors investiga...

In this paper we investigate the exact peroidic wave shock solutions of the Burgers equations. Our purpose is to describe the asymptotic behavior of the solution in the cauchy problem for viscid equation with small parametr ε and to discuss in particular the case of periodic wave shock. We show that the solution of this problem approaches the shock type solution for the cauchy problem of the in...

The interaction of a laser-induced plasma with isotropic turbulence is studied using numerical simulations. The simulations use air as the working fluid and assume local thermodynamic equilibrium. The numerical method is fully spectral and uses a shockcapturing scheme in a corrector step. A model problem involving the effect of energy deposition on an isolated vortex is studied as a first step ...

Shock wave therapy can induce a period of cutaneous analgesia after treatment. Shock wave therapy does not induce microfractures nor does it have an effect on the modulus of elasticity of bone.

background several nonsurgical and surgical treatment modalities are available for patients with chronic coccydynia, with controversial results. extracorporeal shock wave therapy (ecswt) is effective in the treatment of many musculoskeletal disorders; however, it has not been tested for chronic coccydynia. objectives we performed the current study to determine the effects of ecswt on pain in pa...

Based on PVDF (piezoelectric sensing techniques), this paper attempts to study the propagation law of shock waves in brittle materials during the process of three-wavelength laser irradiation of polysilicon, and discusses the formation mechanism of thermal shock failure. The experimental results show that the vapor pressure effect and the plasma pressure effect in the process of pulsed laser ir...