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Bis-oxadiazole, or more formally known as bis(1,2,4-oxadiazole)bis(methylene) dinitrate, is a nitrated heterocyclic compound of the oxadiazole family. [ 1 ] Bis-oxadiazole is related to bis-isoxazole tetranitrate (BITN), which was developed at the United States Army Research Laboratory (ARL).
This is a compilation of published detonation velocities for various high explosive compounds. Detonation velocity is the speed with which the detonation shock wave travels through the explosive.
Pillsbury Explosion and Fire January 2, 1972 Buffalo, New York: United States: wheat flour: 3 8 New Year's weekend explosion at what was then the world's biggest flour mill. The blast occurred in a series of 500-foot-long, 10-story-tall concrete-and-steel bulk flour storage bins. Repairs took a year to complete. [16] Westwego grain elevator ...
The Sedov-Taylor expansion is also known as the "blast wave" phase, which is an adiabatic expansion phase in the life cycle of supernova. [ 21 ] : 96 The temperature of the material in a supernova shell decreases with time, but the internal energy of the material is always 72% of E 0 , the initial energy released.
The EU DEMO design of 2 to 4 gigawatts of thermal output will be on the scale of a modern electric power station. [5] However, the nominal value of the steam turbine is 790 megawatts, which, after overcoming a 5% loss because of the coupling from the turbine to the synchronous generator, results in a nominal value for electrical power output of ...
Two blasting machines. At rear is one where the trigger works by depressing or raising the handle; at fore, one where the handle is twisted. A blasting machine or shot exploder (commonly called a plunger) is a portable source of electric current to reliably fire a blasting cap to trigger a main explosive charge.
Methylamine nitrate is the salt formed by the neutralization of methylamine with nitric acid. [4] Water gel explosives are also made of ammonium nitrate, calcium nitrate, aluminum, ethylene glycol and TNT. The proportions of these components vary depending on the desired explosiveness of the water gel. [5]
The decision whether to construct a tunnel using a TBM or using a drill and blast method includes a number of factors. Tunnel length is a key issue that needs to be addressed because large TBMs for a rock tunnel have a high capital cost, but because they are usually quicker than a drill and blast tunnel the price per metre of tunnel is lower. [2]