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Wave ballistic

J. MaiUette and co-workers, "Pressure Wave Generation in Three Inch/50 Gun," in Proceedings of the 10th International Symposium on Ballistics, American Defense Preparedness Association, (ADPA), San Diego, Calif., 1987. [Pg.54]

As for the coherent length in CNTs, a very interesting paper has been published from the group at the Georgia Institute of Technology about the conductance of individual MWCNTs [34], They have observed the quantisation of conductance by changing the distance between the two electrodes. This result indicates ballistic conduction in a CNT, which suggests the formation of stationary waves of electrons inside CNTs. [Pg.173]

The computation could also be made into a ballistic action by adding sites to the left and right of the sites to be used for the actual computation (with appropriate ff i s but with no corresponding Ai). Instead of starting the computations by putting a cursor at site 0, the computation can be initialized with an incoming packet of some specified momentum (i.e. a spin wave) by putting the cursor with different amplitudes at different sites. [Pg.676]

Pure shock waves) 4) G.B. Kistiakowsky, p 951 in Kirk Othmer 5 (1950), pp given in the text (Not included in the 2nd edition) 5) Corner, Ballistics (1950), 100-01 (Corner Noble-Abel equations of state) 6) SAC MS, Ballistics (1951), 18 (Covolume and equation of state of propint gases) 7) Taylor(1952), 34 (Boltzmann and Hirschfelder Roseveare equation of state for the expln products) 69-72 (Rankine-Hugoniot equation of state) 87-98 (Abel, Boltzmann and other equations of state applicable to deton of condensed expls yielding only gaseous products) 114 (Equations of state applicable to deton of condensed expls whose products contain a condensed phase)... [Pg.296]

Ballistic Pendulum Test) 471-74 (Ba llistic Mortar Test) 474-75 (Cratering Test) 475-76 (A method based on measurement of shock wave pressure) 23)... [Pg.479]

This type of proj has, therefore, the advantage of good exterior ballistics from die standpoint of ballistic coefficient. However, the swaged down skirts make imperfect contact with die proj body, thus creating generating points for retarding shock waves at high velocities... [Pg.536]

In cases involving the ballistic movement of bodies, the formation of vortices in stirring, the bow wave of a ship, the movement of a pendulum, and oher processes affected by the Earth s gravity, the relevance list comprises gp and p. [Pg.15]

A measure of success has been achieved in the suppression of noise but usually as a by-product of the development of another type of muzzle device, such as a flash suppressor General Requirements. Noise is an inherent characteristic of a gun and is usually associated with three main producers the projectile, the muzzle, and the gun components other than the muzzle. The noises produced by the gun components are mostly mechanical such as the sounds of moving parts, impact, and vibration. The projectile noises are mainly those caused by air turbulence following the projectile and the supersonic shock wave or ballistic crack generated by the projectile nose. Muzzle noises are produced by the air pressure build-up in the tube ahead of the projectile and by the proplnt gases issuing from the muzzle after the projectile passage... [Pg.389]

Charges in Air Travel Time, Velocity of Front, and Duration of Shock Waves , BRL-X-127, Ballistic Res Lab, Aberdeen Prov Grnd (1950) 4) J.C. Talley et al, Damage to Aircraft by Blast , NPG-1058, Naval Prov Grnd, Dahlgren (1952) 5) G.A. Young, Base Surge Analysis—... [Pg.766]

Transport of electrons along conducting wires surrounded by insulators have been studied for several decades mechanisms of the transport phenomena involved are nowadays well understood (see [1, 2, 3] for review). In the ballistic regime where the mean free path is much longer than the wire lengths, l 3> d, the conductance is given by the Sharvin expression, G = (e2/-jrh)N, where N (kpa)2 is the number of transverse modes, a, is the wire radius, a Fermi wave vector. For a shorter mean free path diffusion controlled transport is obtained with the ohmic behavior of the conductance, G (e2/ph)N /d, neglecting the weak localization interference between scattered electronic waves. With a further decrease in the ratio /d, the ohmic behavior breaks down due to the localization effects when /d < N-1 the conductance appears to decay exponentially [4]. [Pg.291]

The question may arise whether the self-energy effects are important in the normal state. These are known to be smaller than the inelastic backscattering nonlinearities in the ballistic regime [18]. If we decrease the contact size d or the elastic mean free path li in order to make the inelastic contribution negligible, the latter parameters become comparable to the Fermi wave length of charge carriers and the strong nonlinearities connected with localization occur, which masks the desired phonon structure [19]. [Pg.257]

Microwaves can be produced by four types of macroscopic cavity resonators that use the ballistic motion of electrons across a cavity opening the klystron, the magnetron, the traveling-wave tube (TWT), and the gyrotron. They can also be generated by field-effect transistors at low frequencies, by Gunn42 diodes, and by IMP ATT diodes. [Pg.595]

H.L. Porter, CIOS 33-27, pp 6-46(1945-1946) (Explosives, Hollow Charge and Shock Waves) [Description of work at the Physics and Ballistics Institute, Air Ministry, Berlin, under Director Dr H. Schardin is given. It was claimed that Dr Max von Forster had shown in 1883 (earlier than Ch.E. Munroe) that bare hollow charges gave an enhanced effect along die axis of the charge... [Pg.332]


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See also in sourсe #XX -- [ Pg.357 , Pg.363 ]




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