Parameterized Designs

Parameters in Verilog HDL provide a powerful mechanism to model parameterized designs. Here is a simple example of an TV-bit register. 

The choice of parameterization and the design of a discretization method are not independent Some choices of parameters will facilitate symplec-tic/reversible discretization while others may make this task very difficult or render the resulting scheme practically useless because of the computational expense involved. 

At the top of File Segment 5-1 is a heat of fomiation information block. Two sums are listed One is a sum of nomial bond enthalpies for ethylene, and the other is a sum selected from a parameter set of stiainless bonds. Both sets of bond enthalpies have been empirically chosen. A group of molecules selected as nomial generates one parameter set, and a group supposed to be strainless is selected to generate a second set of str ainless bond enthalpies designated SBE in Eile Segment 5-1. The subject of parameterization has been treated in detail in Chapter 4. See Computer Projects 3-6 and 3-7 for the specific problem of bond enthalpies. 

The Fenske-Hall method is a modification of crystal held theory. This is done by using a population analysis scheme, then replacing orbital interactions with point charge interactions. This has been designed for the description of inorganic metal-ligand systems. There are both parameterized and unparameterized forms of this method. 

Plecs JJ, Harbury PB, Kim PS, Alber T. Structural test of the parameterized-backbone method for protein design. J Mol Biol 2004 342 289-97. 

Van de Waterbeemd, H., Testa, B. The parameterization of lipophilicity and other structural properties in drug design. Adv. Drug Res. 1987, 16, 85-225. 

H-bonding Parameterization in Quantitative Structure-Activity Relationships and Drug Design... 

I 6 H-bonding Parameterization in Quantitative Structure-Activity Relationships ef Drug Design Tab. 6.4 X-ray data, H-bond parameters and optimum energies and distances for few ideal complexes [48]. 

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