Results 11 to 20 of about 12,252,313 (302)

The Second Law of Thermodynamics as a Force Law. [PDF]

open access: yesEntropy (Basel), 2018
The second law of thermodynamics states the increase of entropy, Delta S > 0, for real processes from state A to state B at constant energy from chemistry over biological life and engines to cosmic events. The connection of entropy to information, phase-space and heat is helpful, but does not immediately convince observers of the validity and ...
Schlitter J.
europepmc   +7 more sources

Decoherence, chaos, and the second law [PDF]

open access: yesPhysical Review Letters, 1994
We investigate implications of decoherence for quantum systems which are classically chaotic. We show that, in open systems, the rate of von Neumann entropy production quickly reaches an asymptotic value which is: (i) independent of the system-environment coupling, (ii) dictated by the dynamics of the system, and (iii) dominated by the largest Lyapunov
Zurek, Wojciech Hubert, Paz, Juan Pablo
openaire   +3 more sources

Steam Turbine—Quo Vadis?

open access: yesFrontiers in Energy Research, 2021
In this article, a close look is taken at the state-of-the-art in steam turbine and steam (Rankine) cycle technology within the framework of conventional steam and gas turbine combined cycle power plants, specifically, the bottoming steam (Rankine) cycle
Seyfettin Can Gülen
doaj   +1 more source

Probability as a Physical Motive

open access: yesEntropy, 2007
Recent theoretical progress in nonequilibrium thermodynamics, linking thephysical principle of Maximum Entropy Production (“MEP”) to the information-theoretical“MaxEnt” principle of scientific inference, together with conjectures from
Peter Martin
doaj   +1 more source

Irreversibility and Second Law [PDF]

open access: yesJournal of Non-Equilibrium Thermodynamics, 1998
This publication is with permission of the rights owner freely accessible due to an Alliance licence and a national licence (funded by the DFG, German Research Foundation) respectively.
openaire   +2 more sources

The adiabatic piston: a perpetuum mobile in the mesoscopic realm

open access: yesEntropy, 2004
: A detailed analysis of the adiabatic-piston problem reveals, for a finely-tuned choice of the spatial dimensions of the system, peculiar dynamical features that challenge the statement that an isolated system necessarily reaches a time-independent ...
Claudio Conti   +2 more
doaj   +1 more source

Bluff your Way in the Second Law of Thermodynamics [PDF]

open access: yes, 2001
The aim of this article is to analyse the relation between the second law of thermodynamics and the so-called arrow of time. For this purpose, a number of different aspects in this arrow of time are distinguished, in particular those of time-(a)symmetry ...
Uffink, Jos, Jos Uffink
core   +1 more source

Implementing Demons and Ratchets

open access: yesEntropy, 2017
Experimental results show that ratchets may be implemented in semiconductor and chemical systems, bypassing the second law and opening up huge gains in energy production.
Peter M. Orem, Frank M. Orem
doaj   +1 more source

Emergence of the second law out of reversible dynamics [PDF]

open access: yes, 2009
If one demystifies entropy the second law of thermodynamics comes out as an emergent property entirely based on the simple dynamic mechanical laws that govern the motion and energies of system parts on a micro-scale.
Willigenburg, L.G., van   +1 more
core   +1 more source

The Deep Physics Behind the Second Law: Information and Energy As Independent Forms of Bookkeeping

open access: yesEntropy, 2004
: Even after over 150 years of discussion, the interpretation of the second law of thermodynamics continues to be a source of confusion and controversy in physics.
Jack S. Semura, Todd L. Duncan
doaj   +1 more source

Home - About - Disclaimer - Privacy