Power, definition

X-ray production by electron excitation, 5-9, 27, 28, 98-102, 176-179 X-ray radiance, definition, 6 X-ray radiant energy, definition, 6 X-ray radiant flux or power, definition, 6... 

Four different power definitions are encountered in power system calculations. These are (with their symbolic representation in parentheses) real power (P), reactive power (Q), complex power (S), and apparent power (T). Their individual definitions and relationships are discussed next with reference to... 

In the next section, I introduce the concept of power, confronting some different definitions of power from different realms of social science. Section 3 surveys economic literature on power, stemming from the view of the standard model to the newest theories developed by the new institutional economics and to power definition and concepts suggested by different strands of social network analysis. Section 4 uses different concepts of power to address some organizational problems in the food system. 

A powerful definition of acids and bases was proposed in 1923 by J.N. Bronsted [9], namely an acid is a species capable of donating a proton, and a base is a species capable of accepting a proton. This can be expressed by the scheme... 

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