Knowledge base, continued

The author and the publisher of this Work have made every effort to use sources believed to be reliable to provide information that is accurate and compatible with the standards generally accepted at the time of publication. Because medical science is continually advancing, our knowledge base continues to expand. Therefore, as new information becomes available, changes in procedures become necessary. We recommend that the reader always consult current research and specific institutional policies before performing any clinical procedure. 

An overview of the synthesis of ethylene-styrene copolymers has been compiled by Pellecchia and Olivia [12]. A short overview of ethylene-styrene interpolymer technology, including an identification of the most widely investigated catalysts cited in basic patents, has been presented [27]. Whilst the knowledge base continues to grow, the interrelationships of catalyst structure, polymerization conditions such as temperature and the chain microstructures of the resulting polymers will still be subjects of interest. 

Follow- Up. Even after the system is deHvered, additional work is usually needed. In conventional software engineering this is viewed as software maintenance or upgrade. It is referred to here as foUow-up to emphasize that the process of knowledge-base refinement that begias ia the prototypiag stage can continue even after the system is commissioned. The need for additional detail may come to light only after the appHcation has been ia use for some period of time. The time required to implement such enhancements should be takea iato accouat. 

In the case of the CPI, there are relatively few situations where control room workers are likely to face continuous periods of overload. However, when overload does occur it is likely to be associated with situations when the plant is in an unusual or abnormal state for which the workers may not have any rules or procedures available. In these situations, knowledge-based processing (see Section 2.6.2), which needs considerable mental resources, will be required and errors of diagnosis are likely to occur. 

The term process control is often used when machine control is actually performed. As the knowledge base of the fundamentals of the molding process continues to grow,... 

We are grateful to the many experts who have contributed their time and energy to this book. These authors have played significant roles in the early discoveries and continue to expand the knowledge base related to their subfield specialties. Finally, we thank Dr. Kim Neve for the kind invitation to direct this project and the editorial staff for its help in bringing this book to production. 

Ramesh, T. S., Davis, J. F., and Schwenzer, G. M., Knowledge-based diagnostic systems for continuous process operations based upon the task framework, Comput. Chem. Eng. 16(2), 109-127 (1992). 

A rule-based infrared spectra interpreter has been developed as a major module of the program. This module has been tested as a stand-alone system, and in conjunction with STIRS. The low rate of false positive assertions is encouraging, and work continues to reduce this rate still further by incremental refinement of the knowledge base. 

Other researchers have improved on both knowledge base and sensors, often using different programming tools, but with much the same results. Most of these systems have not been transitioned to commercial application because they were developed by researchers who had no interest in the development of user interfaces and the continued support that is necessary for a commercial software package. As a consequence of the success of these experimental systems, however, the developers of commercial supervisory control packages are moving to incorporate support for expert system logic into their software [24,25],... 

Process analytical technology continuously improves product quality, extends the acquired knowledge base for new projects, and shortens time to market. 

In reality, however, the synergistic effects of density, temperature, and composition on retention (In k ) will necessitate the inclusion of one or more cross terms in equation 5, at least for some sets of experimental conditions. Since the precise relationship depends on the parent fluid, the modifier, and the location of the experimental conditions relative to the critical point, it is often difficult to make intuitive predictions about which cross-terms, if any, should be included. Such predictions may become easier as the knowledge base of SFC continues to grow. 

Every company has a wealth of resources as well as a knowledge base within the company that continues to expand as new personnel are added and current personnel are exposed to industry-related training. This reservoir of knowledge should be tapped to enhance the company s competitive advantage. 

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