cartridge

This work is a preliminary step in the development of a computer system for automatic identification of weapons with the aid of fired cartridge cases. We study the particular characteristics that can be present on the bottom of the cartridge head, which are helpful for automatic identification of the corresponding weapon, and we discuss how to extract and use those features.

This in vitro investigation studied the effect of storing dental local anesthetic cartridges at room temperature and at 37 degrees C on the forces required for cartridge failure under strong injection pressures. Storage for three hours at the higher temperature resulted in a significant reduction in the forces required to produce failure of plastic cartridges (leakage of solution around the bung). The forces needed to cause failure of glass cartridges did not differ between the two temperatures.