Rank curve

When the rank curve has the shape as in Fig. 2.15, factors from the first half of the graph enter the basic experiment ... 

When the rank curve is continually decreasing as in Figs. 2.16 and 2.17, all factors are included into the next active experiment for selecting factors. 

To anyone who has carried out curve-fitting calculations with a mechanical calculator (yes, they once existed) TableCurve (Appendix A) is equally miraculous. TableCurve fits dozens, hundreds, or thousands of equations to a set of experimental data points and ranks them according to how well they fit the points, enabling the researcher to select from among them. Many will fit poorly, but usually several fit well. 

The curve of the pump in this service should show an NPSHr of less than 44 ft at the duty point. And the purpose of this pump is to drain this rank, lowering its level. If we don t want inadequate NPSHa and the possible resulting cavitation to start during the process we should consider a second Hs2 with the tank empty. The other factors remain the same. At the end of the process, we have ... 

The procedure is to fit the population frequency curve as a straight line using the sample moments and parameters of the proposed probability function. The data are then plotted by ordering the data from the largest event to the smallest and using the rank (i) of the event to obtain a probability plotting position. Two of the more common formulas are Weibull... 

The Ml test equipment is easy to operate, provides repeatable results, and low cost to operate. It is widely used for quality control and for distinguishing between members of a single family of plastics. Specifically, this MI makes a single-point test that provides information on resistance to flow at only a single shear rate. Because variations in branching or MWD can alter the shape of the viscosity curve, the MI may give a false ranking of plastics in terms of their shear rate resistance to flow. To overcome this problem, extrusion rates are sometimes measured for two loads, or other modifications are made. 

It has been shown [56] that if we measure the areas under the approach and retract curves of the force-distance plot we can get quantitative values of the resilience. Resilience is closely related to the ability of the polymer chain to rotate freely, and thus will be affected by rate and extent of deformation, as well as temperature. Different materials will respond differently to changes in these variables [46] hence, changing the conditions of testing will result in a change in absolute values of resilience and may even result in a change in ranking of the materials. Compared to more traditional methods of resilience measurement such as the rebound resiliometer or a tensUe/compression tester. 

FIGURE 26.35 Master curve of the side force coefficient of two tread compounds with different glass transition temperatures on wet Alumina 180 A 3,4 IR Tg = —21°C and OESBR Tg = —46°C. Two spot measurements at two different water temperatures show that the ranking if the two compounds reverses. (From Grosch, K.A., Kautschuk, Gummi, Kunststojfe, 6 m, 432, 1996.)... 

R. Tauler, A.K. Smilde and B.R. Kowalski, Selectivity, local rank, three-way data analysis and ambiguity in multivariate curve resolution. J. Chemom., 9 (1995) 31-58. 

If the behavioral activity of PCP is related to its block of pre-synaptic K channels (Albuquerque et al. 1981 Albuquerque et al. 1983 Blaustein and Ickowicz 1983), PCP-like analogues should block these same K channels with a rank order of potency that parallels their relative in vi vo psychotomimetic activity. One of the most behavioral ly potent PCP-like agents is TCP (1 -[1 -(2 -thienyl)-cyclohexyl] piperidine) (Shannon 1983). Figure 4 illustrates the dose-response curves for the block of components S and T by this drug. The data indicate that TCP is a more potent blocker of Sv than is PCP (figure 2). TCP blocked component T only at high concentrations (>10 5M), and in this respect was approximately equivalent in potency to PCP (figure 2). 

Apparently similar flowstream universal buffers have been developed by Alibrandi and others [128,129] for assessing kinetic parameters, such as the pH-dependent hydrolysis of acetylsalicylic acid. The pH-time curves are not as linear as in the SGA system. Other reports of continuous flow pH gradient spectrophotometric data have been described, with application to rank-deficient resolution of solution species, where the number of components detected by rank analysis is lower than the real number of components of the system [130]. The linear pH-time gradient was established in the flowstream containing 25 mM H3PO4 by the continuous addition of 100 mM Na3P04. 

Figure 1 shows a RTIR comparison of the photopolymerizations of the above seven model compounds. The initial slopes of the curves were calculated and are shown in Table 1. Based on this data, the monomers may be ranked in the following order with respect to their rates of polymerization. 

It is also noteworthy that the ACE50 technique for affinity ranking also allows mixture components to be classified as either allosteric or directly competitive with another ligand of interest. In the M2 example, reanalyzing the sigmoidal AGE50 curves in Pig. 3.13 as the ratio plots instead shows that the response ratios... 

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