Theoretical design

Gon Neumann himself showed how to use such nets to reliably carry out conventional arithmetic calculations [vonN63]. He was driven by the problem of how to implement the theoretical design in practice, where one demands that a net continues to function correctly even when one or more of its components malfunctions. 

Bicyclic localized singlet 1,3-a-diradicals were theoretically designed by the orbital phase theory (Scheme 28c) [54]. 

The C level is thus left with no theoretical designation. This, however, is no longer a serious objection. Both Richardson7 and the writer14 have suggested that the molecule H2 should be similar to the atom He and should, therefore, have triplet and singlet series. The C level, from its general characteristics, is a 3P level. It is not the 23P level, as we have seen. Still less can it be the 33P level. Now Hund,15 in an extremely... 

The theoretical design of donor oligomers that gives parallel spins upon electron transfer is reported (Mizonchi et al. 1995). TTF and TSeF were nsed as the donor units in the corresponding ion-radical salts. Reviews by Enoki and Miyazaki (2004) as well as Turner and Day (2005) consider and explained magnetic properties of these systems from physical background. 

Theoretical Design of Catalysts An area where work is needed in the field of selective oxidation is the theoretical design of catalysts. Although there has been some work in this area in the past thirty years 54,55,56) it has not... 

When sizing return air ducts, keep in mind that calculated room leakage rates are empirical and will vary depending on construction tolerances the acutal return air (R.A.) quantities may vary from theoretical design. Return ducts should be sized to handle at least 25% more than design airflow. Return air plenum designs should be avoided unless there is no potential for contamination problems. 

Construction of the distillation units of 1925 was based to a large extent upon the practical experience and know-how of refinery men rather than upon theoretical design methods. In fact, the theory and practice of distillation which had been developed primarily by the wine industry were not adopted by the petroleum industry until the widespread use of the automobile forced the refiners to better distillation methods to increase their yield of gasoline and to improve its quality. 

The forward look in the electrochemistry of corrosion inhibitors is the theoretical design of inhibitors. The cutting edge in this field is in such design work (Hackerman, 1995 Singh and Lin, 1997). Consider the theoretical interpretation of the action of an inhibitor, dibenzyl sulfoxide ... 

The comments made in Section 3 on the design of fluid bed granulators apply equally to spouted bed systems. Information specific to the theoretical design and analysis of spouted beds is available in ref. [26]. Performance data for the spouted bed granulation of some agricultural chemicals are given in Table 7.5. 

The theoretical design of a distillation unit may indicate that the feed should be introduced on one particular tray in the tower. Instead of specifying a tower with only one feed inlet on the calculated tray, the practical engineer will include inlets on several trays above and below the calculated feed point since the actual operating conditions for the tower will vary and the assumptions included in the calculations make it impossible to guarantee absolute accuracy. 

For some of the first theoretically designed candidate SS LCPs, new results are now presented for (1) enhanced solubilities of the molecules (compared with backbone LCPs) in nonpolymeric LC solvents calculated using the static theory, (2) diffusion (i.e., lower limit of processability) of the molecules calculated using the dynamic theory, and (3) head-to-tail polymerization of the monomers predicted from the packing of the bulky relatively rigid side chains of the molecules as calculated using the static theory. Melt processability of some SS LCPs is also discussed. 

The chemical syntheses of several of the theoretically designed candidate SS LCPs have begun at multiple research institutions. 

Opposing Trends in Strength vs. Processability Limits for SS LCPs. Table I shows how the backbone Po, side-chain 2 > ancl diffusion coefficient D of the theoretically designed candidate SS LCP... 

Substituting the group -NH- for the group -0- in the backbone of the SS LCP b-polest-l/s-polest-2 to form the theoretically designed candidate SS LCP b-PBA-3/s-polest-2 [see Figure 3(a)] has almost no effect on the backbone P2 and side-chain P2, as can be... 

Theoretical design of electronically stabilized molecules containing planar tetracoordinate carbons... 

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