Using Predefined Blocks

There are several predefined title blocks from which you can choose. In this section we will show how to choose a different title block. In the next section, we will show how to modify an existing title block to create your own custom title block. We will first look at the available title blocks. We will assume that you still have the project open from the previous example. This is a blank schematic, and we can place title blocks in it without worrying about cluttering up a useful schematic. 

Sequential logic elements, that is, flip-flops and latches, can be inferred by writing statements within an always statement using styles described in Chapter 2. It is best not to synthesize a memory as a two-dimensional array of flip-flops because this is an inefficient way to implement a memory. The best way to create a memory is to instantiate a predefined memory block using a module instantiation statement. 

The shapes look differently according to their affiliation to a document, which makes their distinction easier and, therefore, more user-friendly. At least two collections of predefined shapes have to be loaded for rule modeling one for shapes which shall be part of the integration document and the other for shapes of the application documents. This separation of shape collections makes it easy to use the rule editor for different documents and domains. For example, the provided domain-specific shapes for flowsheet objects, namely devices, streams, and connectors, are represented as boxes, block arrows, and circles, respectively. Further customization to the Comos PT system is realized by loading an image from the Comos PT database when the tjqje of a device shape is set. In the rule depicted in the figure, the devices (boxes) show the representation of heat exchangers in PFD and P ID of Comos PT. 

NMR-SIM uses the predefined command molecule and endmol to set up the individual spin systems or molecules within the spin system definition file. All statements relating to nuclei, interactions and initial spin states are defined in a block that begins with the command molecule and ends with the command endmol. All the statements that occur in this block only relate to that particular spin system. Each spin system defined in this way has to be named, the name appearing on the same line as the molecule command separated by a space. Finally the relative concentration of the individual spin systems is added, separated from the name by a space. 

The use of double hydrophilic block copolymers in biomimetic mineralization processes has been investigated in recent years. In contrast to rigid templates (like carbon nanotubes and porous aluminum templates which predefine the final structure) water soluble polymers could be used as soluble species at various hierarchy levels. Usually, in the case of DHBCs, one of the block acts as scaffold for the development of the crystal, while the other acts as a soluble-stabilizing matrix. Therefore, both of the blocks play a crucial role on the development of the crystals. There is a plethora of reports on the emerging bio-inspired mineralization field. Various crystal structures have been presented during the last years, following versatile synthetic routes. A very detailed and illustrious review has been recently given by Colfen [3]. The above review describes in detail all aspects of the specific field. Herein, we present just a few selected examples. 

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