Abstract The characteristics of wet micro burst are more complex, which will cause some deviation on the artillery range, side and other parameters, have a great influence shooting accuracy. Taking 155 mm explosive shell as research object, based vortex ring principle fluid mechanics, micro-downburst raindrop motion model was established, integrated into suitable for ballistic analysis calculat...

in the present work, attempts have been made to find appropriate coating by testing different compounds. results showed that the optimum enamel is a compound with 1 wt.% cobalt oxide, 3 wt.% chromium oxide (in addition to hundred percent) with the firing temperature of 840 ˚c. constants of vft equation were determined by examination of melting behavior of the optimum enamel and measurement of t...

introduction and case report: an interesting case of shot gun injury fired from a near range of 1.0 to 2.0 meter distance as per the eye witnesses is presented here which on examination revealed that the dispersion of pellets on the body indicates that the range of fire has occurred from a distance of 4 meters to 7 meters. further the presence of wad in the wound adds to the confusion that the ...

Abstract In this paper, we mainly design two modulation ratios of Al/Ni reactive films, prepare TaN@(Al/Ni) by MEMS (Micro-Electro-Mechanical Systems) technology, and conduct firing experiments using capacitive firing. The experimental results show that the ratio has a large effect on performance bridge action process film can be clearly observed high-speed photography.

voluntarily herd shoals of fish towards fishing boats. The fishermen benefit from enhanced catches and the dolphins feed on the entrapped fish, as well as getting some rewards from the fishermen. Nonetheless, numbers of dolphins have declined in Myanmar as a result of electrocution through illegal electric fishing, entanglement in nets, mercury poisoning and habitat loss from gold mining. Myanm...