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In 1996 H.T. Odum defined transformity as, "the emergy of one type required to make a unit of energy of another type. For example, since 3 coal emjoules (cej) of coal and 1 cej of services are required to generate 1 J of electricity, the coal transformity of electricity is 4 cej/J"

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  • Transformité (fr)
  • Transformity (en)
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  • La transformité est définie par Howard T. Odum comme étant une façon d'évaluer la qualité d'une énergie partant du principe qu'1J d'électricité et 1J de pétrole n'ont pas la même valeur énergétique en termes de travail qu'ils peuvent engendrer. (fr)
  • In 1996 H.T. Odum defined transformity as, "the emergy of one type required to make a unit of energy of another type. For example, since 3 coal emjoules (cej) of coal and 1 cej of services are required to generate 1 J of electricity, the coal transformity of electricity is 4 cej/J" (en)
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  • La transformité est définie par Howard T. Odum comme étant une façon d'évaluer la qualité d'une énergie partant du principe qu'1J d'électricité et 1J de pétrole n'ont pas la même valeur énergétique en termes de travail qu'ils peuvent engendrer. (fr)
  • In 1996 H.T. Odum defined transformity as, "the emergy of one type required to make a unit of energy of another type. For example, since 3 coal emjoules (cej) of coal and 1 cej of services are required to generate 1 J of electricity, the coal transformity of electricity is 4 cej/J" The concept of transformity was first introduced by David M. Scienceman in collaboration with Howard T. Odum. In 1987 Scienceman proposed that the phrases, "energy quality", "energy quality factor", and "energy transformation ratio", all used by H.T.Odum, be replaced by the word "transformity" (p. 261). This approach aims to solve a long-standing issue about the relation of qualitative phenomena to quantitative phenomena often analysed in the physical sciences, which in turn is a synthesis of rationalism with phenomenology. That is to say that it aims to quantify quality. (en)
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