Results 31 to 40 of about 3,575,186 (324)

Thermodynamical properties of the Universe with dark energy [PDF]

open access: yes, 2006
We have investigated the thermodynamical properties of the Universe with dark energy. Adopting the usual assumption in deriving the constant co-moving entropy density that the physical volume and the temperature are independent, we observed some strange ...
Akbar M Cai R G   +25 more
core   +2 more sources

A Machine Learning Approach to Predicting the Heat Convection and Thermodynamics of an External Flow of Hybrid Nanofluid

open access: yesJournal of energy resources technology, 2021
This study numerically investigates heat convection and entropy generation in a hybrid nanofluid (Al2O3–Cu–water) flowing around a cylinder embedded in porous media.
R. Alizadeh   +7 more
semanticscholar   +1 more source

Phase Structure of Non-Commutative Field Theories and Spinning Brane Bound States [PDF]

open access: yes, 1999
General spinning brane bound states are constructed, along with their near-horizon limits which are relevant as dual descriptions of non-commutative field theories.
Harmark, T., Obers, N. A.
core   +4 more sources

Black hole chemistry: thermodynamics with Lambda [PDF]

open access: yes, 2016
We review recent developments on the thermodynamics of black holes in extended phase space, where the cosmological constant is interpreted as thermodynamic pressure and treated as a thermodynamic variable in its own right.
D. Kubizňák, R. Mann, Mae Teo
semanticscholar   +1 more source

Thermodynamics and Chemistry of the Early Universe [PDF]

open access: yes, 2018
The interplay between chemistry and thermodynamics determines the final outcome of the process of gravitational collapse and sets the conditions for the formation of the first cosmological objects, including primordial supermassive black holes.
Bovino, Stefano, Galli, Daniele
core   +2 more sources

Thermodynamics of 5D charged rotating black holes: a counterterms treatment

open access: yesEuropean Physical Journal C: Particles and Fields, 2023
We use the counterterms subtraction method to calculate various thermodynamical quantities for charged rotating black holes in five-dimensional minimal gauged supergravity (Chong et al.
Adel Awad, Hassan ElSayed
doaj   +1 more source

Impact of thermodynamic hypotheses on the calculation of the quantity of CO2 stored in a saline aquifer [PDF]

open access: yesMATEC Web of Conferences, 2023
The aim of this paper is to study the impact of thermodynamics models on the CO2 storage capacity of an aquifer, by using modelling and simulation of transport phenomena in porous media.
Aboukalam Da Cruz Matheus H. A.   +3 more
doaj   +1 more source

Confinement and the AdS/CFT Correspondence [PDF]

open access: yes, 2000
We study the thermodynamics of the confined and unconfined phases of superconformal Yang-Mills in finite volume and at large N using the AdS/CFT correspondence.
Avis   +17 more
core   +3 more sources

Potentiometric MRI of a Superconcentrated Lithium Electrolyte: Testing the Irreversible Thermodynamics Approach

open access: yesACS Energy Letters, 2021
Superconcentrated electrolytes, being highly thermodynamically nonideal, provide a stringent proving ground for continuum transport theories. Herein, we test an ostensibly complete model of LiPF6 in ethyl-methyl carbonate (EMC) based on the Onsager ...
Andrew A. Wang   +5 more
semanticscholar   +1 more source

Application of the Molecular Interaction Volume Model for Calculating Activities of Elements in Ferromanganese Alloys: Mn-C, Mn-Fe, Fe-C, and Mn-Fe-C Systems

open access: yesCrystals, 2022
The molecular interaction volume model (MIVM) developed by Tao is a fluid-based model derived from statistical thermodynamics and fluid phase equilibria.
Haipeng Chen   +4 more
doaj   +1 more source

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