Cannon-based artillery has long been the primary means for ground combat maneuver forces, including armor, infantry, cavalry, airborne, and air assault, because of its ability to deliver accurate fires at relatively long ranges. The self-propelled howitzer (SPH) had its origin in World War I, when a few experimental mounts were tested with medium-caliber cannons rigged on tractor chassis. By th...

Since the investigation of wear particles from rail transport started in the late 1910s, the high mass concentrations of these particles have prompted concern among researchers interested in air quality. However, effective action has yet to be taken because relevant knowledge is still missing. This thesis provides knowledge of airborne wear particles originating from rail transport. Some aspect...

This paper studies human exposure to microplastics in real-life situations. The concentration of the polyamide nano/microplastics proximity textile workplaces was made by device Laser Aerosol Spectrometer. descriptive statistical analysis elaborated for: variables TSC (total µg/m3), PM10 (µg/m3), PM2.5 PM1 (µg/m3) and TC number particles, 1/l). histograms each variable highlight asymmetry distr...