Coefficient, characteristic

Heat-transfer aspects and performance were studied and reported on by Depew and Farbar (ASME Pap. 62-HT-14, September 1962). Heat-transfer coefficient characteristics are similar to those shown in Sec. 11 for the indirectly heated fluid bed. Another frequent application on plastics is a sm, rather incidental but necessary amount of drying required for plastic pellets and powders on receipt when shipped in bulk to the users. Pneumatic conveyors modifiea for heat transfer can handle this readily. 

The viscosity increment was determined as v = B v = 172.7 ( 2 5 for spheres) where B is the viscosity coefficient characteristic of a given solue-solvent pair, and amounts to (9.91 0.24)xl0" ff/ A g" for PGA in aqueous solution. is the partial specific volume of the macromolecular component equal to [Pg.612]

Chemical methods for structure determination in diene pol3 mers have in large measure been superseded by infrared absorption techniques. By comparing the infrared absorption spectra of polybutadiene and of the olefins chosen as models whose ethylenic structures correspond to the respective structural units, it has been possible to show that the bands occurring at 910.5, 966.5, and 724 cm. are characteristic of the 1,2, the mns-1,4, and the m-1,4 units, respectively. Moreover, the proportion of each unit may be determined within 1 or 2 percent from measurements of the absorption intensity in each band. The extinction coefficients characteristic of each structure must, of course, be known these may be assigned from intensity measurements on model compounds. Since the proportions of the various units depend on the rates of competitive reactions, their percentages may be expected to vary with the polymerization temperature. The 1,2 unit occurs to the extent of 18 to 22 percent of the total, almost independent of the temperature, in free-radical-polymerized (emulsion or mass) poly butadiene. The ratio of trans-1,4 to cfs-1,4, however,... 

The relationship between the number concentration (AO of CCN and the supersaturation (S) is often expressed in the form N = CSk, where C and k are empirical coefficients characteristic of the particular air mass (Pruppacher and Klett, 1997). However, alternate forms such as... 

Where rE(m) is a coefficient characteristic of E(m) for the system S which depends only on the macrocomponents (rE(m) is equal to unity for an ideal gaseous phase) [5] ... 

A calculated example for pore water concentrations in a non-steady state condition is shown in Figure 3.3. Details concerning the calculation procedure will not be discussed here. The conceptual model employed will be described in Section 3.2.4, a suitable computer model is described in Chapter 15. A typical diffusion coefficient characteristic of young marine sediments and a characteristic porosity coefficient were used in the calculation. 

Fig. 2.25. Periodic variation of the Hill coefficient characteristic of substrate binding to the enzyme, in the case n - 2. The corresponding oscillations in substrate (a) and product (y) are also represented (Goldbeter, 1977).

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