Coordinate orientation

Above a specific temperature, the Curie temperature, a ferroelectric substance becomes paraelectric since the thermal vibrations counteract the orientation of the dipoles. The coordinated orientation of the dipoles taking place during the ferroelectric polarization is a cooperative phenomenon. This behavior is similar to that of ferromagnetic substances, which is the reason for its name the effect has to do nothing with iron (it is also called seignette or rochelle electricity). 

Since each nucleus has three parameters, 8,

overall structure of the complex ab initio. However, uncertainty between alternative structures of substrates is capable of being resolved, as is uncertainty in alternative assignments of the NMR resonances, or uncertainty in the orientation or position of coordination of substrates of known structure. A computer optimization of agreement between observed shifts and coordination orientation (or whatever other uncertain features are to be investigated) is the normal procedure, as first demonstrated for the [Pr(dpm)3(bomeol)] adduct.546... 

Developing the stress-strain-rate relationships is greatly facilitated in the principal coordinate directions. Since isotropy requires that the constitutive relationships be independent of coordinate orientation, the principal-direction relationships can be transformed to any other coordinate directions. At every point in a flow field the strain-rate and stress state... 

This exaggeration makes possible the characterization of polysaccharides by coordinate orientation (Walter, 1991). For routine purposes, accuracy to more than the squared term is seldom required. 

By coordinate orientation, small [t]] differences are exaggerated by the exponent in Eq. (4.7), making coordinate orientation suitable for evaluating functionality and making possible a studied selection for a particular use. If, for example, a polysaccharide giving a low viscosity in an ethanol solution is required, C or SS(2) is the pectin of choice (Fig. 2). The response to ethanol is shown to be pectin-specific rather than class-specific. Instead of ethanol concentration, the abscissa may be ci (Walter, 1991). 

Without the external mass and heat transfer resistances, the initial and boundary conditions with the y-coordinate oriented from the centerhne (y = 0) to the surface (y L) arc... 

The X-ray crystal structures of [(i7 -CsH5)2MHLi]4 (M = Mo or W) (97) indicate that these isomorphous complexes consist of eight-membered rings of alternate lithium and transition metal atoms (72). The shortest lithium-carbon interatomic distance for these complexes are in the range 2.6-2.8 A, but the lithium environments do not correspond to ordinary coordination orientations. ... 

NaX is a Faujasite type zeolite used industrially as a cracking catalyst. Its structure is depicted in the inset of Fig. 1. Benzene in NaX zeolite has been modeled extensively and found to bind strongly in a facially coordinated orientation above four Na cations (Sn sites) and weakly in four sites near Na(III ) cations (W sites). 

Figure 19-7. Coordinate orientation (x, y, z - ADF and x,y,z - adopted in the discussion) and schematic geometry of the Coacacen complex the geometry taken for the calculation is that given by X-ray crystallographic data, reported by F.Cariati, F.Morazzoni, C.Busetto, G.Del Piero, A.Zazzetta, J.Chem.Soc. Dalton Trans. (1976) 342...

Porous volumes were used to mockup known (or assumed) resistance in the core. The core was modeled using 3 radial porous volumes. Modeled Cartesian Coordinate Orientation ... 

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