Electric models of large-scale systems and their analogy with thermodynamic systems

The paper deals with electric models applied in the investigation of sophisticated systems, such as transport, economic and neuron ones. The increasing interest to those systems can be explained by the fact that the systems are characterized by parallel (collective) means of calculating sophisticated processes, which are carried out without any calculation program, but under the influence of sophisticated inner information processes. Electric models can also be looked upon as original structures for neuron-like systems. The paper puts emphasize on comparison between the electric models suggested by the authors, on one hand, and the mechanical and thermal models, on the other hand. It has been shown that entropy phenomena, typical for the latter, can be closely compared to those in electric models, which are distinguished by pure electric values. Also, it has been shown that irreversible processes of energy dissipation, e.g. entropy processes in mechanical models, are corresponded to processes of energy concentration, energy transfer and/or energy exchange in electric models. This enables to shed a new light on processes in electric circuit, especially those concerning with structural improvements of electric circuitry, their self-organization, meaning a neg-entropic information character of these processes. Models of two economic tasks have been considered wherein the calculation process is characterized under the influence of those processes. Assumption on the importance of reactive elements such as carriers of neg-entropy in an electric circuit, was made.