Abstract Experiments are carried out to determine the effects of particle size and mass loading on free-field blast wave from spherical, constant volume metalized explosive charges. The charges comprised gelled nitromethane with uniformly embedded aluminum, magnesium, or glass particles. Particle sizes varied over an order magnitude fractions up 50%. Peak overpressures directly measured within ...

Trace explosives residues of CL20 (hexanitrohexazaisowurtzitane) and RDX (hexahydro-1,3,5-hexanitro-1,3,5-triazine are measured in real-time by surface laser photofragmentation-fragment detection (SPFFD) spectroscopy at ambient conditions. A 248nm laser photofragments the target residue on a substrate, and a 226-nm laser ionizes the resulting NO fragment by resonance-enhanced multiphoton ioniza...

Di erential Re ection Spectroscopy: A Novel Method for Explosive Detection S.E. Yuksel, T. Dubroca, R.E. Hummel and P.D. Gader Department of Materials Science and Engineering, University of Florida, Gainesville FL, USA Department of Computer and Information Science and Engineering, University of Florida, Gainesville, USA In the aftermath of the recent terrorist attacks, there has been an increa...

Wastewaters discharged by several industrial activities, such as synthetic fibers, mineral processing, fertilizers, metal finishing, and ammunitions and explosives industries, have an high-salinity content and are characterized by a very high concentration of nitrates (more than 3 g/L). The treatment of these wastewaters generally deals in an anoxic biological process performed in activated slu...