Performance Optimal

There are several important partial results. (1) Definition of quality of the CT-data in relation to the imaging task, including a model of the X-ray paths and how it is used to predict the optimal performance. (2) A model and method to determine how the information of the imaged object transfer from the detector entrance screen through the detector chain to CT... 

Hammersberg, P., Techniques for the determination of the optimal performance of high resolution computerised tomography, in Department of Mechanical Engineering. 1997, Linkbping. p. 173. 

The brine feed to the electroly2ers of all the processes is usually acidified with hydrochloric acid to reduce oxygen and chlorate formation in the anolyte. Table 14 gives the specifications of the feed brines requited for the membrane and diaphragm cell process to reali2e optimal performance. 

Operational Constraints and Problems. Synthetic ammonia manufacture is a mature technology and all fundamental technical problems have been solved. However, extensive know-how in the constmction and operation of the faciUties is required. Although apparendy simple in concept, these facihties are complex in practice. Some of the myriad operational parameters, such as feedstock source or quaUty, change frequendy and the plant operator has to adjust accordingly. Most modem facihties rely on computers to monitor and optimize performance on a continual basis. This situation can produce problems where industrial expertise is lacking. 

To obtain optimal performance of farm animals, foHc acid supplementation is required (86) and as is the case with most of the vitamins, the majority of worldwide consumption is as feed supplements. The foHc acid requirement for chickens and pigs is about 0.2—0.5 mg of foHc acid/kg diet and 0.3 mg/kg diet, respectively. Increased amounts, 0.5—1.0 mg/kg feed for chickens and 0.5—2.0 mg/kg for swiae, are recommended under commercial production conditions (87). The degree of intestinal foHc acid synthesis and the utilization by the animal dictates the foHc acid requirements for monogastric species. Also, the self-synthesis of folaciais dependent on dietary composition (88). 

Three configurations of the ring dryer have been developed to offer flexibility in design and optimal performance ... 

The factors to consider in the selection of cross-flow filtration include the cross-flow velocity, the driving pressure, the separation characteristics of the membrane (permeability and pore size), size of particulates relative to the membrane pore dimensions, and the hydrodynamic conditions within the flow module. Again, since particle-particle and particle-membrane interactions are key, broth conditioning (ionic strength, pH, etc.) may be necessary to optimize performance. 

The standard orientation is the coordinate system used internally by the program as it performs the calcula on, chosen to optimize performance. The origin is placed at the molecule s center of nuclear charge. Here, the oxygen atom sits on the Y-axis above the origin, and the two hydrogen atoms are f ced below it in die XY plane. 

Last but not least, two epoch-marking technologies have been successfully implemented in 1989 and 1994 active optics, with the 3.5 m ESO New Technology Telescope (NTT), and segmentation, with the 10 m Keck. In the former, real-time adjustments of the primary mirror support forces and of the alignment of the secondary mirror guarantee consistent, optimal performance, and allow relaxation of opto-mechanical fabrication tolerances. These adjustments being derived from wavefront analysis of off-axis stellar sources located outside the scientihc held of view, imply minimal operational overheads at the beneht of reliable, substantial performance improvement... 

Finally a word about efficiency observing time on large telescopes is a valuable asset, both in terms of cost and considering the ratio of observing time available to the time requested by astronomers. Marco et al. (2001) state that the observing efficiency defined as fhe ratio of science shutter time to available dark time is 10-30% for the ADONIS AO system while the corresponding ratio for other instruments is 50-80%. Some of this difference is due to the fact that most AO exposures are of short duration and the readout time is significant. In addition, AO systems use time to close the loop and optimize performance. Observations may also be necessary to characterize the PSF. 

Therefore apple-application e q)eriments were performed to determine the amount of rhamnogalacturonase which is necessary for an optimal performance. With these application-expaiments an impression could be obtained about the differences in RGase activity of the various strains. 

Optimum detector settings may vary from instrument to instrument therefore, minor adjustments may be made to optimize performance. 

Figure 15 Comparison of theory and experiment for the fractionation of oligoade-nylates on ion exchange materials, (a) Simulated chromatogram, (b) Observed chromatogram. An example of how theory is being used to attempt to optimize performance of ion exchange materials. The curve in (a) shows the nonlinear gradient development with a convex curvature. (Reproduced with permission of Elsevier Science from Baba, Y., Fukuda, M., and Yoza, N., J. Chromatogr., 458, 385, 1988.)...

Clearly, our effort toward understanding the course of the dehydrogenation reaction was key in achieving optimal performance for production. The understanding of this reaction, however, goes beyond the finasteride process changing the way that we think about quinone oxidations. 

Thus hydrogels form a tmly diverse class of materials. In fact, it is this diversity and flexibility in preparation that leads to their utility Many different formulations can be tested for a given application, and the formulation can be readily fine-tuned for optimal performance. In the following subsection, the range of hydrogel types available and their preparation are described. 

Jochum C, Jochum P, Kowalski BR (1981) Error propagation and optimal performance in multicomponent analysis. Anal Chem 53 85... 

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