Grade P110 Tubing Shredded by Downhole Detonation

Gas Detonation Forming by a Mixture of H2+O2 Detonation

Explosive forming is one of the unconventional techniques in which, most commonly, the water is used as the pressure transmission medium. One of the newest methods in explosive forming is gas detonation forming which uses a normal shock wave derived of gas detonation, to form sheet metals. For this purpose a detonation is developed from the reaction of H2+O2 mixture in a long cylindrical detona...

Reconstructing Shredded Documents

This project looks at the challenges involved in the automatic reconstruction of strip (vertically cut) and cross (both vertically and horizontally cut) shredded documents. The unshredding problem is of interest in the fields of forensics, investigative sciences, and archaeology. All stages of the unshredding pipeline are analysed, starting from scanned images of shreds and ending with reconstr...

Detonation initiation by hypervelocity projectiles

Abstract: We report experimental studies on the initiation of detonations by hypervelocity projectiles in hydrogen-oxygen-nitrogen mixtures. The experimental facility T5 at Caltech was modified to launch 25-mm diameter projectiles at speeds around 3000 m/s. Flow visualization and pressure measurements are reported for several mixture conditions. A clear transition between shockinduced combustio...

Deformability of Shredded

Sound Attenuation by Hearing Aid Earmold Tubing

In this study we model the sound attenuation properties of a hearing aid earmold tube. The model includes thermoviscous acoustic effects and it couples structural vibrations to the external acoustic field. Moreover, the finite element domain is coupled at two boundaries with an electroacoustic model of a hearing aid and an acoustic 2-cc coupler.