Correlation between various

The first group, i.e. simple laboratory tests, is frequently criticised in that, although results may be reproducible, they do not give a good indication of how the material will behave in a real fire situation. On the other hand, the second group is criticised because correlation between various tests proposed by different regulatory bodies is very poor. In spite of these limitations there are, however, a few tests which are very widely used and whose results are widely quoted. 

The SECSY spectrum of an isoprenyl coumarin along with the H-NMR chemical shifts are shown. Determine the homonuclear shift correlations between various protons based on the SECSY spectrum. 

Correlations between various combinations of partition coefficients have appeared in the literature. Water solubility has... 

Abstract In this chapter, recent progress in the synthesis, crystal structures and physical properties of monomeric phthalocyanines (Pcs) is summarized and analysed. The strategies for synthesis and modification of Pcs include axial coordination of central metal ions, peripheral substitution of Pc rings and the ionization of Pcs. The crystal structures of various typical Pcs, especially the effects of different synthetic and modification strategies on the supramolecular assemblies of Pcs via %—% interactions between Pc rings, are discussed in detail. Finally, the UV-vis spectroscopic, conducting, magnetic and catalytic properties of some Pcs with crystal structures are presented briefly, and the correlations between various properties and the molecular structure discussed. 

Among the properties measured here, the settling rate is mainly a measure of the size of the floes and in later stages the compressibility of floes and floe networks, and the supernatant clarity is a measure of the size distribution of floes and size dependent capture of the particles and floes by the polymer. The sediment volume and the pulp viscosity on the other hand, are direct measures, not only of floe size and structure but also of adsorbed polymer layers. It is to be noted in this regard that it is this latter aspect which makes it possible to estimate the thickness of adsorbed polymer layers by measuring the viscosity of the medium and the suspension in the presence of polymers (20,21). This combination of effects is another reason one cannot always expect correlation between various flocculation responses. 

If this model is selected, one must then decide what variables to use for the ordinate and the abscissa. The parameters must be dose-sensitive, free of confounding variables, easily determined and preferably linear. We have evaluated this approach for estimating the bioavailability of calcium in mechanically deboned meat products (11). Typically, correlations between various bone parameters and dietary calcium are very high (r = 0.943 to 0.999). This is consistent with what others have found for similar parameters (46,47). These correlations are also similar to the those (r = 0.947 to 0.982) between the amount of calcium consumed and calcium retained (11) a good index procedure. 

Many workers have studied and published correlations between various types of plastimeter, often to show that they do not agree and to illustrate the superiority of the instrument which supposedly agrees best with processing behaviour. Several comparisons are included in the literature already noted and other examples are shown in Figure 6.6. Figure 6.6a shows the relatively close correlation obtained between two compression instruments, the Wallace rapid and Williams plastimeters, for materials of similar flow characteristics (plasticised natural rubber). When such rubbers are compared on two basically different instruments (compression and extrusion) the... 

Park et al. (25) first noted interesting correlations between various electronic properties such as vibrational frequencies, chemical shifts and quadrupole coupling constants in various carbonmonoxy heme proteins. In this series of proteins, they established a linear relationship between the 13C and 170... 

CFSU Control of the functions of system units. Depending on the availability of needed information in the database about correlations between various processes, a version is selected from alternative versions that does not contradict the database. 

The structural correlation between various silver-ethynide supramolecular synthons affords a rationale for the preponderant existence of C2 Ag n = 6-10) polyhedra in Ag2C2 complexes (see Section 20.4.5). If the linear C=C-C=C— chain were contracted to a C% dumbbell, further overlap between atoms of the terminal Ag caps would conceivably yield a closed cage with 6-10 vertices (Fig. 20.4.35). 

Figure 6. Correlation between various colors and the 3.6 p,m bulge-to-disk-ratio with optical morphological type. The [3.6] — [4.5] color shows that the starlight changes from blue for early-types to red for late-types. A similar trend is found for [3.6] — [8.0], which samples the ratio of starlight to warm dust emitting at the longer wavelengths.

In this method correlations between various velocity fluctuations are used to determine the turbulent energy spectrum, E k), and several turbulence length scales. The correlations mentioned contain information about how velocities and other flow properties are statistically related in the turbulent flow. Turbulence measured at a fixed point can be described as a fluctuating waveform. If two instantaneous waveforms appear to have a corresponding behavior, they are said to be correlated. Equation (1.311) shows how velocity fluctuations at two points can be statistically correlated if the distance between the two points are small. 

Rathkamp, G., T.C. Tso, and D. Hoffmann On the correlation between various leaf constituents and selected smoke components 25th Tobacco Chemists Research Conference, Program Booklet and Abstracts, Vol. 25, Paper No. 6, 1971, p. 5. 

Approximate correlation between various hardness values for minerals, - Knoop hardness, x = Vickers hardness [196]. 

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