Digital Logic Method

Digital logic method is adopted when there are numerous properties to be considered, and their relative importance is not very clear. In this method, only two properties are considered at a time. Every possible combination of the properties are compared. For each comparison, a yes-or-no evaluation is given. A table (see Table 2.2) is constructed to determine the relative importance of each property. 

In order to prevent the influence of fhe properfy having higher numerical value, a scaling factor is infroduced. The properfy after incorporating the scaling factor is called the scaled property. It is given by  

B = (Numerical value of fhe properfy/Maximum value in fhe lisf) x 100 

Affer obfaining all fhe scaled properties for a maferial, ifs performance index (y) is obfained as  

In fhe case of a space-filling maferial, its cost per unit weight (C) and density (p) can be incorporated to its performance index. Thus, a figure of merif (M) can be defined as  

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It is easy to realize the economic value to industry of even just this one example of change in production methods. Given that almost all industrial production methods that can be automated with digital logic have been, the effects on productivity and... 

L.J. Hafer and A.C. Parker, A Formal Method for the Specification, Analysis and Design of Register-Transfer Level Digital Logic, IEEE Transactions on CAD, vol. 2, no. 1, pp. 4-18, January 1983. 

The reason for this is because we would like to offer our users the opportunity not just to understand the method and the coded logic, but also to be able to enjoy the 3D interactive graphics, the digital videos, the color images, and most importantly the active code spreadsheets. Along with any other imaginable visualization, this can be executed and experimented with using their own data. 

There are three phases to the development of a problem solution on a digital computer. First, the problem must be stated and the mathematical methods for its solution described. Second, the logical structure of the problem must be analyzed from the viewpoint of the calculator. Third, the program of actual machine instructions, in its prescribed coded form, must be written and tested. 

For consecutive or parallel electrode reactions it is logical to construct circuits based on the Randles circuit, but with more components. Figure 11.16 shows a simulation of a two-step electrode reaction, with strongly adsorbed intermediate, in the absence of mass transport control. When the combinations are more complex it is indispensable to resort to digital simulation so that the values of the components in the simulation can be optimized, generally using a non-linear least squares method (complex non-linear least squares fitting). 

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