Tables—continued parallelism

Differentiation of chemical journals continued, paralleling specialization of interests among the many groups of chemists within the United States. The pattern of differentiation, reflected in journals published by the ACS (Table G), may be characterized by the two broad categories of specialty... 

However, we have to reflect on one of our model assumptions (Table 5.1). It is certainly not justified to assume a completely uniform oxide surface. The dissolution is favored at a few localized (active) sites where the reactions have lower activation energy. The overall reaction rate is the sum of the rates of the various types of sites. The reactions occurring at differently active sites are parallel reaction steps occurring at different rates (Table 5.1). In parallel reactions the fast reaction is rate determining. We can assume that the ratio (mol fraction, %a) of active sites to total (active plus less active) sites remains constant during the dissolution that is the active sites are continuously regenerated after AI(III) detachment and thus steady state conditions are maintained, i.e., a mean field rate law can generalize the dissolution rate. The reaction constant k in Eq. (5.9) includes %a, which is a function of the particular material used (see remark 4 in Table 5.1). In the activated complex theory the surface complex is the precursor of the activated complex (Fig. 5.4) and is in local equilibrium with it. The detachment corresponds to the desorption of the activated surface complex. 

Table 1.2 gives some of the reasons for the LGC setting up its automation team. The primary motivation was economic. LGC was often subject to constraints on staffing in parallel with large increases in analytical commitments. The introduction of cost-effective analyses, using mechanical or automatic instruments, reduces staff involvement and allows well qualified people to be released for the development of new analytical requirements. The analysis of beer samples by multi-channel continuous flow analyser [S, 6, 7] and the introduction of a mechanical solvent extraction and identification system to analyse and measure levels of quinizarin in gas oil, both for duty purposes, were prime examples [8], Both systems involved commercially available components and/or instruments integrated with modules designed and built in-house. 

Figure 9.6. Tray dryer arrangements, batch and continuous. Performance data are in Table 9.5. (a) Air flow across the surfaces of the trays, (b) Air circulation forced through the beds on the trays (Proctor and Schwartz Inc.), (c) Continuous drying of trays mounted on trucks that move through the tunnel air flow may be in parallel or countercurrent (P.W. Kilpatrick, E. Lowe, and W.B. Van Arsdel, Advances in Food Research, Academic, New York, 1955, Vol. VI, p. 342).

There is no way of regarding the region designated by IV as a continuation of the bands II. The strong absorptbn with E parallel to a would (Table V) then correspond to a transition At of C v—>Ai(Ct,) arising from an E state of TV In order to classify the spectra it is necessary to assume that the vibrationless transition A — Ai (of E) does not appear. This is a phe-... 

Table 5.4 shows the clear influence of PCc content on the microhardness. The dominating contribution of crystallinity in the mechanical properties of polymers is well known. Therefore, to understand better the correlation between the chemical composition and the microhardness of the copolymers one has first to examine the behaviour of the crystalline phase. Figure 5.12 shows the nearly parallel dependence of the microhardness and the crystallinity on the PCc content within the copolymers. H drops continuously with increasing PCc wt% almost in the same manner as the crystallinity does. Such a parallel behaviour of H and Wc shows that the effect of chemical composition on the microhardness is transferred via the crystallinity. 

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