Compare design

The value of this relation is that it serves as a maximum limit that may he expected from a designed unit when comparing design Q/A versus Equation 10-139. 

The primary purpose of the HELP model is to provide water balance data with which to compare design alternatives for conventional barrier-type covers installed on landfills with bottom liners. It provides a tool for both designers and permit writers and is applicable to open, partially closed, or fully closed sites. 

Sheiner LD, Hoshimoto Y, Beal SL. A simulation study comparing design for dose-ranging. StatMed 1991 10 303-21. 

In this chapter we deal with single reactions. These are reactions whose progress can be described and followed adequately by using one and only one rate expression coupled with the necessary stoichiometric and equilibrium expressions. For such reactions product distribution is fixed hence, the important factor in comparing designs is the reactor size. We consider in turn the size comparison of various single and multiple ideal reactor systems. Then we introduce the recycle reactor and develop its performance equations. Finally, we treat a rather unique type of reaction, the autocatalytic reaction, and show how to apply our findings to it. 

Temperature, composition, and reaction rate are uniquely related for any single homogeneous reaction, and this may be represented graphically in one of three ways, as shown in Fig. 9.2. The first of these, the composition-temperature plot, is the most convenient so we will use it throughout to represent data, to calculate reactor sizes, and to compare design alternatives. 

Simple comparative designs Categorical/qualitative and quantitative Check of method, testing of single factor effect... 

Several smaller studies have also explored the use of bivalirudin with drug-eluting stents, brachytherapy, and in peripheral intervention (40-42). Although lacking optimal comparative design, these studies appear to indicate a safety and efficacy profile comparable to that observed in the randomized clinical trials. 

Comparing design No. 1 to design No. 2, annual percent return... 

Fig. 2 Comparing designs of T-type die (A) [(1) constant cross-section manifold (2) constant land length] to coat hanger-type die (B) [(1) manifold cross-section decreases as distance from centerline increases (2) land length becomes shorter farther from the centerline of the die].

We have thus arrived at a single economic parameter as a basis for comparing designs, which are calculable as soon as T and q are chosen. The complexity of the design makes this calculation laborious, elementary though it is, and clearly calls for the use of a computer. 

L. B. Sheiner, Y. Hashimoto, and S. F. Beal, A simulation study comparing designs for dose ranging. Stat Med 10 303-321 (1991). 

The addition of a new compound to the series always increases the value of D and therefore, in order to compare designs of different size it is preferable to use the M criterion or the D-efficiency (Def) ... 

The earliest detector used for visible light spectroscopy was the human eye. There are still spectroscopes and color comparators designed for visual observation of color and intensity. 

Experimental evaluation (e.g., quantitative data compare design alternatives)... 

Minimum practical total RP thickness is established as 4.8 mm ( A6 in.) for the combined spray-up liquid seal and filament wound structural layers and 6.4 mm (V4 in.) for an all-chopped fiber spray-up laminate with sand filler. The choice for any construction is made on the basis of comparative design thickness, weight, and fabrication costs. The all-chopped fiber reinforced construction using somewhat greater wall thickness than the composite filament wound-chopped fiber wall is determined to provide the lowest tank cost filament winding provides lower weight. 

There was no experience in Britain of the production of TNT from toluol petroT. Accordingly, De Kok, head of the Royal Dutch research laboratory and just back from France, went to Britain to assist in the manufacture of TNT from Borneo oil. In London, he joined the American explosives expert Kenneth B. Quinan (1878-1948), who had been brought from South Africa to begin TNT production. De Kok erected a MNT plant at Oldbury, on the basis of experience that Royal Dutch had gained in the Reisholz nitration plant. Whereas the Reisholz factory never produced more than 100 metric tons MTN a week, the Oldbury plant was designed for 450 tons a week. In a second plant, built according to a comparable design at Sandycroft by De Kok and his Dutch assistant V. Henny, an even more remarkable 700 tons a week were produced. ... 

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