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** Configuration index reference axis **

X-axis The axis in the plane of a material used as 0° reference thus the y-axes is the axes in the plane of the material perpendicular to the x-axis thus the z-axes is the reference axis normal to the x-y plane. The term plane or direction is also used in place of axis. [Pg.647]

Similarly, one obtains (in order to make the reference axis more explicit, the angles (O, 0, x) in the rotation matrix elements of equ. (8.108c) have been replaced by ((P,x)) [Pg.353]

Tool high-side angle The angle between the tool reference axis and a line perpendicular to the hole axis and lying in the vertical plane. [Pg.1082]

Tool azimuth angle The angle between north and the projection of the tool reference axis onto a horizontal plane. [Pg.1082]

Consider two laminae with principal material directions at -t- a and - a with respect to a reference axis. Prove that fr orthotropic materials [Pg.222]

FIGURE 4.6 Balanced three-phase power system. Phase sequence refers to the order in which phasors move past a reference axis. The positive phase sequence is assigned a counterclockwise rotation. [Pg.86]

Using the tensor operators pkK(El) of equ. (8.99b) defined in the coordinate frame where the electric field vector coincides with the reference axis, one gets [Pg.353]

Fig. 9. The right-handed (R) and left-handed (L) three-fold helices of i-PP. For each handedness, the two different orientations (up or down) with respect to the reference axis are shown. The heights of the methyl groups are expressed ic c/6 units |

When the reactants A and B are not spherically symmetric, their mutual reactivity depends on their orientation. Sole and Stockmayer [256] and Schmitz and Schurr [257] have modified the diffusion equation to include rotational diffusion of both reactants. By defining a reference axis in either species, the probability that a B reactant is a distance r away from A at time t, at an orientation (0, 0) with respect to the laboratory axis, and such that A and B are oriented at angles (0A, 0A) and (0B, 0b), respectively, is p(r,0,0 0a,0a> 0b,0b)- It satisfies the expression [Pg.111]

ENDOR on VO(II) complexes is facilitated for several reasons289 (a) the EPR transitions can easily be saturated (ENDOR signals are often observed at 100 K), (b) the large anisotropy of the Av tensor allows for a high orientation selectivity in powder samples, and (c) the V=0 bond may be used as internal reference axis. Moreover, the g tensor is nearly isotropic so that contributions to the hf interactions from an unquenched orbital moment may be neglected (Sect. 5.1). [Pg.102]

** Configuration index reference axis **

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