Results 31 to 40 of about 265,948 (327)

A Relativistic Entropic Hamiltonian–Lagrangian Approach to the Entropy Production of Spiral Galaxies in Hyperbolic Spacetime

open access: yesUniverse, 2021
Double-spiral galaxies are common in the Universe. It is known that the logarithmic double spiral is a Maximum Entropy geometry in hyperbolic (flat) spacetime that well represents an idealised spiral galaxy, with its central supermassive black hole (SMBH)
Michael C. Parker, Chris Jeynes
doaj   +1 more source

Entropy production in relativistic hydrodynamics [PDF]

open access: yesPhysics Letters B, 2001
15 pages; LaTex. Accepted for publication in Physics Letters B.
H.-Th. Elze   +4 more
openaire   +6 more sources

Physicochemical attack against solid tumors based on the reversal of direction of entropy flow: an attempt to introduce thermodynamics in anticancer therapy

open access: yesDiagnostic Pathology, 2006
Background There are many differences between healthy tissue and growing tumor tissue, including metabolic, structural and thermodynamic differences. Both structural and thermodynamic differences can be used to follow the entropy differences in cancerous
Lv Xiaogui   +4 more
doaj   +1 more source

Geometrical aspects of entropy production in stochastic thermodynamics based on Wasserstein distance

open access: yesPhysical Review Research, 2021
We study a relationship between optimal transport theory and stochastic thermodynamics for the Fokker-Planck equation. We show that the lower bound on the entropy production is the action measured by the path length of the L^{2}-Wasserstein distance ...
Muka Nakazato, Sosuke Ito
doaj   +1 more source

Theoretical Analysis of Entropy Generation at the Blade Interface of a Tubular Turbine Under Cooperative Conditions

open access: yesFrontiers in Energy Research, 2021
To study the influence of the blade entropy production range on the efficiency of a tubular turbine under coassociated conditions, the renormalization group K–ε turbulence model was used to simulate the full flow passage of the tubular turbine based on ...
Zhenggui Li   +4 more
doaj   +1 more source

Quantum measurement and entropy production [PDF]

open access: yesPhysics Letters A, 2001
5 pages, 2 ...
Paolo Grigolini   +3 more
openaire   +4 more sources

Entropy Production in Exactly Solvable Systems

open access: yesEntropy, 2020
The rate of entropy production by a stochastic process quantifies how far it is from thermodynamic equilibrium. Equivalently, entropy production captures the degree to which global detailed balance and time-reversal symmetry are broken.
Luca Cocconi   +4 more
doaj   +1 more source

The Entropy Production of Galaxies

open access: yes, 2021
Double-spiral galaxies are common in the Universe. It is known that the logarithmic double spiral is a Maximum Entropy geometry and represents spiral galaxies well. It is also known that the virial mass of such a galaxy can be approximately determined from the entropy of its central supermassive black hole.
Michael C. Parker, Chris Jeynes
openaire   +3 more sources

Bacterial chemotaxis and entropy production [PDF]

open access: yesPhilosophical Transactions of the Royal Society B: Biological Sciences, 2010
Entropy production is calculated for bacterial chemotaxis in the case of a migrating band of bacteria in a capillary tube. It is found that the speed of the migrating band is a decreasing function of the starting concentration of the metabolizable attractant.
Davor Juretić   +4 more
openaire   +7 more sources

Generalization of Prigogine’s theorem for the case of full differential of entropy

open access: yesMethodsX, 2018
In this paper we propose a solution to the problem associated with the presence of an incomplete differential of entropy in Prigogine's theorem on the minimum of entropy production.
V.I. Shapovalov, N.V. Kazakov
doaj   +1 more source

Home - About - Disclaimer - Privacy