Define name rules

Prior to running any compile steps in DC, use the define name rules command as shown below. 

SDF is a case sensitive file. One option is to change instance names in the SDF file to lower case. Another option that can be exercised within DC, is to make all the instance names of the design upper-case. This can be done by using the commands define name rules and change names. Here is an example ... 

You wish to add a user-defined prefix to all the cells in the netlist. But the define name rules command with the -prefix option does not do this. Why ... 

In an Excel worksheet, you have to use Define Name or Create Name to assign a name to a variable, but variable names in VBA are automatically assigned as you type the VBA code in a module. There are just a few rules for naming variables or arguments ... 

The general naming rules given above define the source-based nomenclature recommended by lUPAC [29]. There is another more detailed structure-based nomenclature that can be used when the exact copolymer structure is known, but this is rarely used, mainly because of the difficulty of experimentally determining the exact structure of a synthesized copolymer. 

One of the most famous of the Greek philosophers was Socrates (470-399 BC). The Socratic method is the name given to the process by which an argument starts from an incontrovertible statement based on common experience and is developed by means of clearly defined logical rules. Socrates was not concerned with the nature of matter or the structure of the universe his philosophy was concerned with moral and ethical issues. His aim was to deduce rules that would enable people to be good citizens and live together in peace. 

In Chemical Society practice, prefixes are italicized if, and only if, (i) they define the position of named substituents or (ii) they define a stereoisomer. Thus italics, by clause i) continue, for example, to be used for 0-, m-, p-, and for element symbols which denote substitution on that element, as in o-dichlorobenzene, A -methyl-2-napthylamine, etc. By clause (n), italics continue to be used for m-, trans-, JS-, /S-, etc. But italics are no longer used in names such as isobutane, isopropyl, t-butyl, for here, though the prefixes define the substance, they do not define named substituents. Similarly prefixes which have varied use are not italicized when in particular cases they refer to stereoisomers, as in allocinnamic acid, for here they do not define a particular stereoisomer. These rules differ somewhat from American practice. 

Many experimental techniques now provide details of dynamical events on short timescales. Time-dependent theory, such as END, offer the capabilities to obtain information about the details of the transition from initial-to-final states in reactive processes. The assumptions of time-dependent perturbation theory coupled with Fermi s Golden Rule, namely, that there are well-defined (unperturbed) initial and final states and that these are occupied for times, which are long compared to the transition time, no longer necessarily apply. Therefore, truly dynamical methods become very appealing and the results from such theoretical methods can be shown as movies or time lapse photography. 

Reference [73] presents the first line-integral study between two excited states, namely, between the second and the third states in this series of states. Here, like before, the calculations are done for a fixed value of ri (results are reported for ri = 1.251 A) but in contrast to the previous study the origin of the system of coordinates is located at the point of this particulai conical intersection, that is, the (2,3) conical intersection. Accordingly, the two polar coordinates (adiabatic coupling term i.e. X(p (— C,2 c>(,2/ )) again employing chain rules for the transformation... 

The Self-defining Text Archive and Retrieval (STAR) file format addresses primarily the problem of the inflexibility of the PDB file format, its fixed sets of allowable fields, and their strong dependence on order, To overcome the problems described, both the data. structure and the actual data items within a STAR file arc self-defined, which means that they are preceeded by corresponding names (labels) which identify and describe the data. The data may be of any type and there is no predefined order of the data. STAR files, in contrast to PDB files, are easy to read and write manually. The whole syntax of STAR files is very simple and is defined by only a few rules ... 

A single alkane may have several different names a name may be a common name or it may be a systematic name developed by a well defined set of rules The most widely used system is lUPAC nomencla ture Table 2 6 summarizes the rules for alkanes and cycloalkanes Table 2 7 gives the rules for naming alkyl groups... 

Before we summarize Bayes results, we should discuss briefly what the behavior of a Life-like rule worthy of the name ought to look like, or what we can expect it to look like. While the original two-dimensional Life-game was introduced in the last section formally as an outer-totalistic code OT224 rule, it is much more convenient to define it in terms of the sizes of two environments a survival environment E, and... 

As more is known regarding plant taxonomy, plant names change. Because the rules used to define how plants are named imply certain relationships [29]... 

The use of resonance structures such as 7 and 8 to describe bond polarity led to a subtle change in the meaning of the octet rule, namely, that an atom obeys the octet rule if it does not have more than eight electrons in its valence shell. As a result, resonance structures such as 7 and 8 are considered to be consistent with the octet rule. However, this is not the sense in which Lewis used the octet rule. According to Lewis, a structure such as 7 would not obey the octet rule because there are only three pairs of electrons in the valence shell of carbon, just as BF3 does not obey the octet rule for the same reason. Clearly the octet rule as defined by Lewis is not valid for hypervalent molecules, which do, indeed, have more than four pairs of shared electrons in the valence shell of the central atom. 

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