Showing 1 - 10 of 18
Is there a link between the macroscopic description of the irreversibility and microscopic behaviour of the systems? Transfer of the exergy, i.e., consumption of free energy will keep the system away from a stable equilibrium. So entropy generation results from the redistribution of energy,...
Persistent link: https://www.econbiz.de/10011117895
The extremum of entropy generation is evaluated for both maximum and minimum cases using a thermodynamic approach which is usually applied in engineering to design energy transduction systems. A new result in the thermodynamic analysis of the entropy generation extremum theorem is proved by the...
Persistent link: https://www.econbiz.de/10010730356
Cells can be regarded as engines that execute a series of chemical reactions. A malignant cell, that is, a cancerous cell, can be described as an open complex dynamic and self-organising system. The entropy generation approach has been used to evaluate the stationary states for cells in relation...
Persistent link: https://www.econbiz.de/10010777044
The entropy variation due to irreversibility is considered to deduce a principle of stability for open systems. To demonstrate this, thermodynamic Lagrangian and the minimum action principle are used.
Persistent link: https://www.econbiz.de/10010871673
Open systems are very important in science and engineering for their applications and the analysis of the real word. At their steady state, two apparently opposed principles for their rate of entropy production have been proposed: the minimum entropy production rate and the maximum entropy...
Persistent link: https://www.econbiz.de/10010872144
The chemical–physical analysis of the DNA have pointed out the connections between forces, thermodynamics and kinetics. The entropy generation approach has been suggested as a thermodynamic approach to evaluate the accessible states for cancer systems, in relation to their thermodynamic...
Persistent link: https://www.econbiz.de/10010873871
The magnetic refrigeration, for the second order transition materials, is considered and its ideal coefficient of performance COP is obtained by a general physics approach. The COP is shown to depend on the temperature in a non-linear way and on the magnetic field ratio, at the temperature...
Persistent link: https://www.econbiz.de/10010873978
Biomechanical analyses of DNA have pointed out the connections among forces, thermodynamics and kinetics. The entropy generation approach has been suggested as a thermodynamic approach to evaluate the accessible states for cancer systems, in relation to their specific thermodynamic quantities,...
Persistent link: https://www.econbiz.de/10010874860
The thermodynamic analysis of open systems is fundamental in engineering. For the open systems at their steady state, two apparently opposed principles for the rate of entropy production have been used: the minimum entropy production rate derived by Prigogine, used in the description of various...
Persistent link: https://www.econbiz.de/10010874964
An increasing number of natural phenomena appear to deviate from standard statistical distributions. It has kindled interest in alternative formulation of statistical mechanics which should preserve most of the mathematical structures of the Boltzmann–Gibbs theory, while reproducing the...
Persistent link: https://www.econbiz.de/10011062279