Design entities

The lUPAC-authorized italicized prefixal symbol F conveys the sense of perfluoro (e.g., F-alkyl = perfluoroalkyl = Cnp2n+i. By extension, the symbol F- will be used to designate entities (F-chains, F-compounds, F-amphiphiles, F-colloids) that comprise a highly fluorinated moiety or phase. 

Designer) Entity Type System Process Site Role System Event Criterion... 

The overbars or overlines are used to designate entities in the stripping section. Note that this operating line terminates at the point designated B, where y = x = Xg. 

In VHDL, a component declaration is required before instantiating a component. This defines the template of the component being instantiated and includes information such as, port mode or direction, port names and the data type of the ports. These templates or component declarations are bound to sub-design entities using configuration declaration statements. Hence, when reading in a VHDL netlist you... 

VHDL is capable of describing a well-defined hardware block at any level of abstraction. A design entity is the VHDL representation of such a block and can be considered to be at ffie top of the design hierarchy. Within the design entity, the function of the hardware is often further decomposed by using external and internal blocks. 

External blocks are other design entities that have been previously compiled and stored in a library (section 3.4). These types of blocks are generally referred to as components. Each component can further extend the hierarchy by also using external and internal blocks to describe its own function. The present design entity can also be thought of as an external block. 

A design entity contains an entity declaration and an architecture body. These are described in detail below. Figure 3.1 shows the organization of the VHDL design hierarchy and illustrates the main elements of an architecture body. The port connections, indicated by arrowheads, enable information to be passed between blocks and, at the top level, allow the design entity to communicate with the external environment. A design entity may contain any or all of the elements shown in the diagram. It will always have an entity declaration and architecture body at the top level. 

Design entities are very rarely fully independent functional units. In most cases they will reference other (external) blocks that represent components or contain common subprograms and declarations. These might be stored... 

A hierarchical structure can be created to a design entity through the use of external and internal blocks. 

A concept can also be operational in a different sense. Thus, the designated entity can be defined in terms of the operations it can perform. Lavoisier points to this alternative definition when he says of his elements that they act with regard to us as simple substances . What is important for him as a chemist is that the elements are actors in chemical operations, and so are defined by how they act and react in a network of relations with respect to other chemical actors. This second sense of operational definition is more fundamental than the first, and was characteristic of chemistry even before Lavoisier introduced this explicitly pragmatic definition of the element. 

Requirements must be crafted for each specification, from top to bottom, and must accommodate derived requirements anerging from the definition of each configuration item. A specification represents both a design entity and a verification entity. 

Scheme 6 shows representative members of these three groups. Other combinations are possible and the design of an appropriate bielectrophile for use as a versatile synthon presents a considerable synthetic challenge, as by virtue of the structural entities involved they are extremely reactive. 

Process measurements encompass the apphcation of the principles of metrology to the process in question. The objective is to obtain values for the current conditions within the process and make this information available in a form usable by either the control system, process operators, or any other entity that needs to know The term measured variable or process variable designates the process condition that is being determined. 

Some approaches to quality management suggest that companies reduce the total number of suppliers for a service or material to just a few high quality entities. This allows the companies to symbi-otically develop relationships. Both parties can benefit greatly by using a system designed to rank preferred tollers. However, do not let the motivation to reduce the number of suppliers inhibit the critical review of potential tollers capable of performing the toll successfully. 

Shortcut Equipment Design Methods tend to become buried in design procedures, even computer-based ones. Therefore they often become part of the mix and don t stand free as separate entities. This is not bad. These methods need to be placed wherever they are useful. However, it is also good to draw them out since many everyday problems can be solved with undiluted shortcuts. 

In addition, you must send a copy of the report to the State in which the facility is located ( State" refers to State of the U.S., the District of Columbia, the Commonwealth of Puerto Rico, Guam, American Samoa, the U.S. Virgin Islands, the Northern Mariana Islands, and any other territory or possession over which the U.S. has jurisdiction). Refer to Appendix Q for the appropriate State address for your submission. If your facility is located on Indian land, send a copy to the Chief Executive Officer of the applicable Indian tribe. Some tribes have entered into a cooperative agreement with the State, in which this case. Form R submissions should be sent to the entity designated In the cooperative agreement. 

The design of any apparatus must be unified and result in a safe functional system. Materials used for each apparatus should form a well coordinated and integrated entity, which should not only meet the requirements of the apparatus functional utility, but also those of safety and product purity. 

When designing apparatus with several materials, consider all materials as an integrated entity. More highly resistant materials should be selected for the critical components and for cases in which relatively high fabrication costs are anticipated. Often, a compromise must be made between mechanically advantageous properties and corrosion resistance. 

If a quality record was intended to be any document generated or used by the quality system, the definition would surely have indicated this. If we decompose the definition further, requirements for quality are defined in ISO 8402 as the expression of the needs or their translation into a set of quantitatively stated requirements for the characteristics of an entity to enable its realization and examination. Clearly, such a requirement would be a contract, product specification, design requirement, etc. This implies that any product verification records are quality records, but it rules out any recorded information as being a quality record. 

Entities altered or reworked to incorporate design changes. 

A process for establishing whether an entity will fulfill the purpose for which it has been selected or designed. 

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