Differentiation ratio

For the case under consideration, where the value of a — 1 is quite small, it follows that everywhere in the cascade, except possibly at the extreme ends, the stage upflow is many times greater than the product withdrawal rate. Thus L/ L — P) can be set equal to unity. Furthermore when the value of a — 1 is small, the stage enrichment can be approximated by the differential ratio dx/dn without appreciable error. The gradient equation for the... 

The selectivity of this etching procedure can be expressed quantitatively by a differentiation ratio with respect to one phase ... 

The concentration changes involved are shown in Figure 3.13 and are governed by the differential ratio equations given below ... 

Absorption Ratio, Differential—Ratio of concentration of a nuclide in a given organ or tissue to the concentration that would be obtained if the same administered quantity of this nuclide were uniformly distributed throughout the body. 

The provisional characterization (Section 3.4) of heat capacity C as the ratio of heat absorbed to the temperature increase corresponds to a differential ratio of the form (on a per-mole basis, unless otherwise specified)... 

Goldstein S. L. and Galer S. J. G. (1992) On the trail of early mantle differentiation ratios of early Archean... 

Since it is the degree of contamination by the bacteria of warm-blooded animals that is most significant from a water quality standpoint, this is measured by means of the differential ratio test [44] (Eq. 4.28). 

The count at 20°C is taken for a 48-hr incubation of the plates at this temperature. The 37°C count is taken for a 24-hr incubation at this temperature, to approximate the propagation conditions provided by warm-blooded animals. If the ratio obtained by the differential ratio test is above 10, it is taken as an indication of a reasonably good water supply. 

Fig. 13A-C. Isobutylene polymerization by the TMPCI/T1CI4 system at various TEA concentrations and at — 45 °C A the change with time of cationation rate constant (k ) B differential ratio of monomer concentration C overall propagation rate constant (kp)...

Tabie 7.3 Strength differential ratios rc/n for five bulk metallic glasses evaluated through eq. (7.64) for material parameters v and from Table 7.1... 

A number of platinum polyamines were tested for antiviral activity in tumor cells [111]. For instance, the polymer from tetrachloroplatinate and 2,6-diamino-3-nitroso-pyridine (Scheme 8.34) which exhibited a cell differential ratio of 3.4, was tested at a concentration of 2.2 Xg/ml on L929 cells infected with... 

TTie calculated central Pu4/ u-f ratios are about 5% low. An increase in the differential ratio used for finding Pu Oj would also improve the low keff values for Zebra 3 and Assembly-48. 

Similar to the smoothing width in polynomial smoothing operations, the differentiation width h = Ax = AA) has an influence on the noise and therefore also on the SNR. The greater the differentiation width (h), the smaller the noise and the higher the SNR (Fig. 3-52). In analogy to the smoothing ratio r, the differentiation ratio f can be defined as the ratio of the differentiation width to the half width of a band ... 

This statement tells us that if the neutron density is known in terms of either E or v the expression in terms of the other is obtained by using the transformation (3.43). The differential ratio dvldE is computed from the relation E = where m is the mass of the neutron. It follows... 

Figure 7.3. Convenor Torque vs. Feed Rate Differential Ratio.

The cytopathic effect of platinum(n) polyamines on normal and transformed 3T3 cells was studied. Some of the compounds were more toxic to normal cells, while others were more effective at destroying the transformed cells. A cell differential ratio, which was simply the ratio of the percentage of cell death for the transformed cells compared to the normal cells, was established to rate the relative effect of cell inhibition. A value greater than one indicated that the polymer was more effective against the transformed cells. Examples of polymers with low cell differential ratios were products derived from tetraiodoplatinate, PtLt, and 1,8-diamino-/ -methane and the product from tetraiodoplatinate and pyrimethamine. The product with the largest cell differential ratio, a ratio of 14, was derived from tetrachloro-platinate and 2-chloro-p-phenylenediamine. 

The white discoloration in the ascorbic and citric acid may be attributed to the stress on the additive filled polymer. Additives ereate a larger differential ratio of shrinkage causing more internal stresses throughout the part. In this experiment the internally stressed parts experienced an external stress at the bottom supports of the elhptical fixtures of approximately 88.87 MPa for the filled polystyrene and 49 MPa for the filled polyethylene aeeording to the elliptieal stress ealeulations. This level of stress induced the filled polyethylene and polystyrene to produce a stress eoneentration aroimd the bottom support resulting in the diseoloration. 

---