Partition testing

Again, suppose that g = 3 for illustration. Then partition testing tests ... 

Stepdown Testing—A Shortcut to Closed and Partition Testing... 

The key condition needed to effect a shortcut is roughly that the rejection of a more restrictive hypothesis implies the rejection of certain less restrictive null hypotheses. So if one starts by testing the more restrictive null hypothesis and then skips the testing of less restrictive hypotheses as such implications allow, then closed or partition testing becomes more computationally feasible. The resulting shortcut version of a closed or partition test is a stepdown test. 

Whereas Hsu et al. (2002) obtained simultaneous confidence intervals for 0 , i = 1,..., g, here we illustrate partition testing of the null hypotheses... 

Without shortcutting, closed or partition testing would require testing 21285 — 1 tests, which is clearly impossible to achieve. However, conditions S1 and S2 for shortcutting closed and partition testing are trivially satisfied. Also, condition S3 is satisfied because the distribution of max, e/ 17) does not depend on any parameter, including 6j, j I. 

For all regression analyses, herbicidal activity data were taken from the appropriate column in Table VII. Corresponding tt, tt or tt" values were selected from Table VI. Hammett sigma constants (a) were taken from the compilation of Jaffe (13) and correspond to those in Table IV. Since it was assumed throughout that <7 would be relatively unaffected by the presence of surfactant, the <7 values in Table IV were used to correlate data obtained in the presence and absence of Tween 80 for all three weed types. This assumption is reasonable since the surfactant was used at a low 0.1% level in all herbicidal and partitioning tests. Furthermore, surfactant effects would be expected to manifest themselves primarily in the partitioning behavior (tt values) of the TFMS compounds... 

The 2.54-cm diameter Electropulse Column shown in Figure 1, after completion of uranium runs, was installed at Battelle Memorial Institute (Columbus, Ohio) for uranium-plutonium partition tests. Six electrolytic runs were made under conditions corresponding to partitioning in the first process cycle to determine the effect of uranium reduction efficiency R(u) on t le separation process. The organic feed contained 80 to 83 grams/L of uranium and 0.71 to 0.82 grams/L of plutonium. The nitric acid concentration in the aqueous feed was 2.5 to 2.8 M and in the organic feed 0.2 to 0.3 M. 

Table 5 gives the results of partitioning tests with both the M(IV) and M(VI) combinations. For the M(VI) case, 0.06M and 0.08M FeSA are -80% and 105%, respectively, of the stoichiometric amount of reductant necessary to completely reduce Np and Pu. The higher Pu loss might be caused by too low a Fe2+/Fe3+ ratio in the scrub section of the mixer-settler. When enriched U solutions were processed, Fe2+/Fe3+ ratios less than 0.18 led to oxidation of Pu(III) and Np(IV) (L3). The Fe2+/Fe3 + ratio of 0.054 in the scrub section would allow oxidation and re-extraction of Pu. Np loss is not changed because most of the Np does not reach the scrub section. Rather than increase waste... 

Fig. 7 Hexadecane-water partition test. Biologically produced sulfur remains in the lower water phase (1) whereas crystalline sulfur remains in the upper hexadecane-phase (2) [40]...

Category-Partition Testing. This attempts to combine elements of equivalence partitioning, boundary value analysis, and cause-effect graphing by exercising all combinations of distinct groups of... 

Furthermore, a degree of additional testing, such as the response to unusual and not specified input conditions should be carried out. For SIL 1 and SIL 2 this should include system partitioning testing and boundary value testing. For SIL 3 and SIL 4 the tests should be extended to include test cases that combine critical logic requirements at operation boundaries. 

Results obtained by Ghosh and co-workers [42, 64] in end-group analyses of PMMA indicate that all the polymer samples exhibit a positive response to methylene blue reagent in the dye partition test, indicating at least some sulfate (OSO ) end groups. 

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