Ballistics, defined

In principle, metallic CNTs are ballistic conductors (i.e. electrons move without scattering), which means that the resistance is independent of the nanotube length. In MWCNTs, the conductance is defined by the outermost layer [53]. In general, the ballistic nature of CNTs is affected by the presence of structural defects [54]. Still, experimental values for electric current density are exceptionally high, i.e. up to 4 ... 

Propulsive Action (PrA) or Heaving Action (Propulsive Force). It was defined by the lateW.R. Tomlinson Jr, formerly of Picatinny Arsenal, as the ability of an expl or propellant charge to propel, or hurl matter or a projectile. This term has been used in industry to rate commercial expls and represents the same property as ballistic potential defines for propel lants. PrA is proportional to the "hot-gas-volume PrA = nRT, where n = gas volume per gram of the expl product at STP, R = gas cons-... 

In interior ballistics it is usually written in terms of a unit wt of gas, so that V rj have dimensions vol per unit wt, and n is the number of moles per unit wt. Many authors also define R as the gas constant per unit wt so that n does not appear explicitly in the equation. R so defined is not constant unless n is also constant... 

Two parameters, that is, piezometric efficiency and ballistic efficiency are commonly employed in order to evaluate the overall performance of a particular gun-charge-projectile system and are defined in the following manner. 

Ballistic efficiency Ballistic efficiency is defined as the ratio of the total work done upon the projectile to the total work potential of the propelling charge, that is, (Equation 4.3) ... 

The more modem approach to the problem of mixing nitrocellulose consists of mixing defined types of nitrocellulose in the nitrocellulose factory itself. In this case the two forms of nitrocellulose are mixed under water in mixers as described in Vol. II, p. 374. The water is then centrifuged and the mixture dehydrated with alcohol. This method, however, creates certain inconvenience to the powder factory which loses the possibility of changing (within certain limits) the composition of the mixtures, i.e. nitrogen content and total solubility of nitrocellulose. The powder factory is therefore compelled to limit the number of factors which can be varied to obtain the powder of required ballistic properties. 

Power is usually defined in terms of one or several of the following experimental methods a Ballistic Mortar Test(qv) b) Ballistic Pendulum Testf qv) c)Cratering Effect Test(q ) d)Mortar Test(qv) e) Quinns Test(qv) )Trauxl or Lead Block Expansion Test(qy), and ita modifications CVP and Kraftzabl. 

Fig. 2 shows the experimental results for the even SH component variation defined above, obtained for the films of 50 and 100 nm of Au. The value of the dropdown observed exceeded 5% of magnitude for the Au/Fe films. One can see the different type of the SH field deviation relaxation for two films of different thicknesses, which can be attributed to the larger path of the ballistic electrons transport in the case of 100 nm-Au film. The electron pulse scatters and broadens while propagating in Au, which affects the relaxation rate. The inset... 

Erosion and Service Life Tests" (The purpose of these tests is to determine a) the useful life of a given cannon tube and the type of ballistic failure which limits its life b) the rates of hore erosion and muzzle velocity loss and c) the means of minimizing erosion) 33) Kirk Sc Othmer 4(1949), p 529 (Erosion is defined as a combination... 

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