Results 41 to 50 of about 177,691 (298)

On Thermodynamics Problems in the Single-Phase-Lagging Heat Conduction Model

open access: yesEntropy, 2016
Thermodynamics problems for the single-phase-lagging (SPL) model have not been much studied. In this paper, the violation of the second law of thermodynamics by the SPL model is studied from two perspectives, which are the negative entropy production ...
Shu-Nan Li, Bing-Yang Cao
doaj   +1 more source

Local equilibrium and the second law of thermodynamics for irreversible systems with thermodynamic inertia [PDF]

open access: yes, 2015
Validity of local equilibrium has been questioned for non-equilibrium systems which are characterized by delayed response. In particular, for systems with non-zero thermodynamic inertia, the assumption of local equilibrium leads to negative values of the
Glavatskiy, K. S.
core   +2 more sources

Direct Evidence of Topological Dirac Fermions in a Low Carrier Density Correlated 5d Oxide

open access: yesAdvanced Functional Materials, EarlyView.
The 5d oxide BiRe2O6 is discovered as a low‐carrier‐density topological semimetal hosting symmetry‐protected Dirac fermions stabilized by nonsymmorphic symmetries. Angle‐resolved photoemission spectroscopy, quantum oscillations, and magnetotransport measurements reveal gapless Dirac cones, quasi‐2D Fermi surfaces, high carrier mobility, and a field ...
Premakumar Yanda   +11 more
wiley   +1 more source

Entropy? Honest!

open access: yesEntropy, 2016
Here we deconstruct, and then in a reasoned way reconstruct, the concept of “entropy of a system”, paying particular attention to where the randomness may be coming from. We start with the core concept of entropy as a count associated with a description;
Tommaso Toffoli
doaj   +1 more source

Remarks on the weak cosmic censorship conjecture of RN-AdS black holes with cloud of strings and quintessence under the scalar field

open access: yesNuclear Physics B, 2021
In this paper, we investigate the thermodynamics and weak cosmic censorship conjecture in a RN-AdS black hole with the cloud of strings and quintessence by the scattering of a scalar field.
Jing Liang   +3 more
doaj   +1 more source

Law behind second law of thermodynamics — unification with cosmology [PDF]

open access: yesJournal of High Energy Physics, 2006
17 ...
Nielsen, Holger Frits Bech, Ninomiya, M.
openaire   +2 more sources

Holographic Bound From Second Law of Thermodynamics

open access: yes, 2000
A necessary condition for the validity of the holographic principle is the holographic bound: the entropy of a system is bounded from above by a quarter of the area of a circumscribing surface measured in Planck areas.
Bartnik   +6 more
core   +1 more source

Functional Materials for Environmental Energy Harvesting in Smart Agriculture via Triboelectric Nanogenerators

open access: yesAdvanced Functional Materials, EarlyView.
This review explores functional and responsive materials for triboelectric nanogenerators (TENGs) in sustainable smart agriculture. It examines how particulate contamination and dirt affect charge transfer and efficiency. Environmental challenges and strategies to enhance durability and responsiveness are outlined, including active functional layers ...
Rafael R. A. Silva   +9 more
wiley   +1 more source

The generalized second law of thermodynamics with Barrow entropy

open access: yesEuropean Physical Journal C: Particles and Fields, 2021
We investigate the validity of the generalized second law of thermodynamics, applying Barrow entropy for the horizon entropy. The former arises from the fact that the black-hole surface may be deformed due to quantum-gravitational effects, quantified by ...
Emmanuel N. Saridakis, Spyros Basilakos
doaj   +1 more source

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