With respects to the emergy evaluation of complexity, information and technology

Maud, S 2008, 'With respects to the emergy evaluation of complexity, information and technology', Journal of Cleaner Production, vol. 16, no. 7, pp. 881-881.


Document type: Journal Article
Collection: Journal Articles

Title With respects to the emergy evaluation of complexity, information and technology
Author(s) Maud, S
Year 2008
Journal name Journal of Cleaner Production
Volume number 16
Issue number 7
Start page 881
End page 881
Total pages 1
Publisher Elsevier BV
Abstract Ulgiati et al. recently stated that, "The optimum efficiency "chosen" by green plants maximizes their biomass over time within the existing constraints". This appears to be a statement about the evolution of systems which operate under a selective maximization principle, such that given X constraints, plants select Y efficiencies that maximize their biomass - a "maximum biomass optimum efficiency principle". If we use UBiomass to notate the biomass form of energy, and combine this with notation, nmax, which Tribus used to express the optimum efficiency for maximization, the maximum biomass optimum efficiency principle might be designated ?(UBiomass)max. In their article Ulgiati et al. also identified two other selective maximization principles: maximum power, n(P)max, and maximum empower, n(emP)max. However, it is not clear to me how these three principles relate to one another. I would therefore like to ask Ulgiati et al. to indicate which one of the following relations holds. [Graphic missing] If none of the above four relations hold, given that they are all maximization principles which have at various times been touted as baring some relation to evolutionary system selection, it would be of benefit for Ulgiati et al. to indicate how these principles are in fact related.
Copyright notice Copyright © 2007 Elsevier Ltd All rights reserved.
ISSN 0959-6526
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