Results 51 to 60 of about 143,000 (295)
Loop expansion in Yang-Mills thermodynamics [PDF]
, 2006 We argue that a selfconsistent spatial coarse-graining, which involves interacting (anti)calorons of unit topological charge modulus, implies that real-time loop expansions of thermodynamical quantities in the deconfining phase of SU(2) and SU(3) Yang ...
AD Linde +24 more
core +6 more sources
Geometric Optimisation of Quantum Thermodynamic Processes
Entropy, 2020 Differential geometry offers a powerful framework for optimising and characterising finite-time thermodynamic processes, both classical and quantum. Here, we start by a pedagogical introduction to the notion of thermodynamic length. We review and connect
Paolo Abiuso +3 more
doaj +1 more source
On the efficiency at maximum cooling power
, 2013 The efficiency at maximum power (EMP) of heat engines operating as generators is one corner stone of finite-time thermodynamics, the Curzon-Ahlborn efficiency $\eta_{\rm CA}$ being considered as a universal upper bound.
Apertet, Yann +4 more
core +1 more source
Quantum Confinement and Negative Heat Capacity [PDF]
, 2013 Thermodynamics dictates that the specific heat of a system is strictly non-negative. However, in finite classical systems there are well known theoretical and experimental cases where this rule is violated, in particular finite atomic clusters.
Alharbi, Fahhad +3 more
core +2 more sources
The History and Perspectives of Efficiency at Maximum Power of the Carnot Engine
Entropy, 2017 Finite Time Thermodynamics is generally associated with the Curzon–Ahlborn approach to the Carnot cycle. Recently, previous publications on the subject were discovered, which prove that the history of Finite Time Thermodynamics started more than sixty ...
Michel Feidt
doaj +1 more source
, 2015 [...] By the beginning of the 20th century, the principles of thermodynamics were summarized into the so-called four laws, which were, as it turns out, definitive negative answers to the doomed quests for perpetual motion machines.
Apertet, Yann +3 more
core +1 more source
Deflation at Turnaround for Oscillatory Cosmology [PDF]
, 2006 It is suggested that dark energy in a brane world can help reconcile an infinitely cyclic cosmology with the second law of thermodynamics. A cyclic cosmology is described, in which dark energy with constant equation of state leads to a turnaround at ...
Baum, Lauris, Frampton, Paul H.
core +5 more sources
Finite-time bounds on the probabilistic violation of the second law of thermodynamics
SciPost Physics, 2023 Jarzynski's equality sets a strong bound on the probability of violating the second law of thermodynamics by extracting work beyond the free energy difference.
Harry J. D. Miller, Martí Perarnau-Llobet
doaj +1 more source
Advanced Engineering Materials, EarlyView.Geometry‐driven thermal behavior in wire‐arc additive manufacturing (WAAM) influences microstructural evolution during nonequilibrium solidification of a chemically complex Fe–Cr–Nb–W–Mo–C nanocomposite system. By comparing different deposits configurations, distinct entropy–cooling rate correlations, segregation, and carbide evolution are revealed ...
Blanca Palacios +5 more
wiley +1 more source
Energies, 2021 This is a review of the concepts of purpose, direction, and objective in the discipline of thermodynamics, which is a pillar of physics, natural sciences, life science, and engineering science.
Adrian Bejan, George Tsatsaronis
doaj +1 more source