Within range testing

Within each column, values sharing the same letter are not significantly different at the 0.05 level, according to Duncan s multiple range test. 

Numbers followed by the same letter within a column are not significantly different at the 5% level according to Duncan s Multiple Range Test. 

If all responses to these tests are linear and typical, and all other independent variables remain within normal operating specifications, it can be assumed that the membrane and electrolyser interactions are optimised for operation within the current density range tested in Section 6.3.1. This procedure has been used successfully to diagnose and optimise operating conditions for both standard and high current density operations where unexpected performance issues have arisen. Furthermore, operators... 

Catalytic reactions involve a complex set of related and linked events. Both the catalyst structure and the type of reactants, intermediates and products adsorbed on the surface impact the functionality of a catalyst. Therefore, an understanding of the various events must be synthesized with the intrinsic kinetics to produce a reaction mechanism that accurately models the catalyst surface. The goal is to characterize and understand the catalyst surface well enough to predict the performance either for a class of reactions or within the tested range. 

System Suitability. Although method validation is performed once at the end of method development, system suitability tests are performed on a specific system periodically (usually daily) or prior to each batch during validation and sample analysis to determine the system performance (see Chapter 13). During method development or/and upon completion of the validation, system suitability data should be evaluated and used to define acceptance criteria to use before starting sample analysis. System suitability tests include (1) the reproducibility of retention time, (2) adequate sensitivity to quantify LLOQ (minimum detector response), (3) appropriate sensitivity to quantify ULOQ (within range of detector), and (4) chromatographic separation. 

It is also important to correct the raw vapour pressure data for any pad gas which was present in the test cell. This can be done by subtracting the partial pressure of any non-condensible pad gas which was present in the test cell, to obtain the vapour pressure (see A2.7.1). Because pressure transducers may not be very accurate at the bottom end of their range, it is advisable to vent the test cell to atmosphere, once it is filledand before sealing it and heating to the initial runaway temperature, so that a reliable initial pad gas pressure is known. (This may not always be compatible with the desire to simulate the runaway scenario within the test.) An alternative is to evacuate both test cell and containment vessel before the reactants are added so that there is no pad gas and no correction is needed,... 

Testing programmes should be significant, i.e. designed to suit the problem, not to copy an accepted publication. Too often the preoccupation with standard methods to get counts within range or correct names can be expensive and time-consuming. 

The conversion of several biogenic amines into their acetyl derivatives has been attempted [26] for their analysis by HPLC with UV detection. The calibration graphs are linear within the tested range and the limits of detection range from 30 to 250 ng depending on the amine. 

Thyroid function tests were also taken and have all returned as being within a normal range. A full blood count found all parameters were normal and within range. 

Future work will concentrate on expanding host range tests, evaluating vertebrate toxicity, and developing an appropriate formulation. Ongoing surveys will continue to search for new organisms within the United States and abroad. 

Means and standard deviations for 8 plants in that container different superscripts within rows denote significant differences (P<0.05) according to Duncans Multiple Range Test. 

Means and (s.e.) within a column followed by the same letter are not statistically different at = 0.05 by Duncan s Multiple Range test. 

A less restrictive comparison can be made at a fixed conversion but allowing the liquid velocity, and hence Lg, to vary. In Fig. 17, the required to reach = 0.50 is shown with the resulting productivity and selectivity. STY and S are relatively insensitive to and hence to L/f for the MR. It should also be noted that although STYy for the two washcoat loads (17 and 33%) is virtually the same, the selectivity is predicted to differ substantially. In these cases, the increase in catalyst load causes an increase in conversion that is almost perfectly balanced by a decrease in selectivity. The similarity of the shell catalyst and the MR is also apparent, though the pressure drop is greater for the TBR. The trends in relative performance for superficial gas velocity within the range tested (m = 0.1-0.8 m/sec) were the same for both reactors. 

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