On a microscopic scale, a pyrotechnic material is made of a polymer matrix containing grains with different sizes and shapes. Its physical behaviour can be predicted by homogenization. Information about the morphology of the grains can be obtained by different ways. One of these ways is 3D image processing. This has been made easier by the use of a new imaging technique, the microtomography, al...

The article presents a method of evaluating pyrotechnic compositions producing an acoustic effect. aforementioned are used in firecrackers to simulate cannon shot. Optimum that were selected (Part I Evaluation the applicability mathematical models developing effect) for testing evaluated their explosive and physicochemical properties. following methods evaluate suitability: measurement sound in...

The full-up prototype testing of perchlorate-free, hand-held, signal illuminants for the US Army's M126A1 red star parachute hand-held signal is described. Compared to the perchlorate-containing control, the disclosed illuminants yielded excellent stabilities toward various ignition stimuli while offering superior pyrotechnic performance. Militarily, the illuminants provided further evidence th...

We study the location of various film-related services (such as camera rental, casting agencies or pyrotechnic services), the main determinant of interest being the human capital specificity. We show that firms which supply services with a lower firm specificity locate farther away from one another, and argue that it can be concluded that the "poaching" argument (fear of employees leaving for a...

A fire inside a pyrotechnic store can lead to simultaneous initiation of the stored articles, regardless their risk category, producing shockwave caused by released gas pressure. In fact, several accidents have occurred throughout history in stores. This indicates high posed pyrotechnics due flammability. Due lack global or European legislation on guidelines for design stores and associated ass...