Conceptual concentration

Figure 8.13 Conceptual concentration profiles and particle distribution in the liquid film region (Wachi and Jones, 199 la)...

Thus each review within the volume critically surveys one aspect of that topic and places it within the context of the volume as a whole. The most significant developments of the last 5-10 years are presented, using selected examples to illustrate the principles discussed. A description of the laboratory procedures involved is often useful to the reader. The coverage is not exhaustive in data, but rather conceptual, concentrating on the methodological thinking that will allow the non-specialist reader to understand the information presented. 

A complete security design includes these four concepts in layers of protection or a defense in depth arrangement. The most critical assets should be placed in the center of conceptual concentric levels of increasingly more stringent security measures. In the concept of rings of protection, the spatial relationship between the location ofthe target asset and the location ofthe physical countermeasures is important. 

The air quality can be calculated by API (Air Pollution Index). API is a conceptual concentration index which combines the several common air pollutants. API can represent the level of air pollution and quality of air condition. 

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