Concept definition

Target concept definition. A concept definition describing the con cept to be learned. 

Operationality criterion. A predicate over concept definitions, specifying the form in which the learned concept must be expressed. 

According to Cano-Ruiz and McRae, process design as a part of process development starts with problem framing. At this stage, the concept definition, scope of analysis, design objectives, constraints, evaluation and interruption criteria have to be determined. They argued that framing decisions are often made implicitly, whereas the critical importance... 

Gustafsson O, Gschwend PM (1996) Aquatic colloids concepts, definitions, and current challenges. Limnol Oceanogr 42 519-528... 

The concept (definition) of an equilibrium separation implies that the outlet streams and the still are at the same temperature and pressure. This gives four equations ... 

Fig. 8. Coordinatoclathrate concept definitions, relations, and functions of control2>... 

Karlen DL, Mausbach MJ, Doran JW, Cline RG, Harris RF, Schuman GE (1997) Soil quality a concept, definition, and framework for evaluation. Soil Sci Soc Am J 61 4—10... 

Chirality, an important shape property of molecules, can be regarded as the lack of certain symmetry elements. Chirality measures are in fact measures of symmetry deficiency. These principles, originally used for crisp sets, also apply for fuzzy sets. Considering the case of three-dimensional chirality, the lacking point symmetry elements are reflection planes a and rotation-reflections 82 of even indices. Whereas the lacking symmetry elements can be of different nature in different dimensions, nevertheless, all the concepts, definitions, and procedures discussed in this section have straightforward generalizations for any finite dimension n. 

By analogy with chirality and various chirality measures, more general symmetry deficiencies and various measures for such symmetry deficiencies can be defined with reference to an arbitrary collection of point symmetry elements. We shall discuss in some detail only the three-dimensional cases of symmetry deficiencies, however, as it has been pointed out in reference [240], all the concepts, definitions, and procedures listed have straightforward generalizations for any finite dimension n. 

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