Results 11 to 20 of about 4,402 (241)

Necessity of Dark Energy from Thermodynamic Arguments [PDF]

open access: yesAdvances in High Energy Physics, 2014
Considering the cosmic fluid as a quasi-static thermodynamic system, the status of the generalized second law of thermodynamics is investigated and the valid range of the equation of state parameter is derived for a few important cosmological models. Our
H. Moradpour   +3 more
doaj   +2 more sources

Diagnosing Cracks in the Injector Nozzles of Marine Internal Combustion Engines during Operation Using Vibration Symptoms

open access: yesApplied Sciences, 2023
In the operation of internal combustion engines, despite technical state monitoring, some cracks that develop in metal components go undetected, leading to secondary, critical, or degradation damage. The diagnostic systems used in floating objects mainly
Jan Monieta
doaj   +2 more sources

Control protocols for a system of N Brownian mutual interacting particles

open access: yes, 2022
Documento del examen de candidatura válido como tesis de maestría en Ciencias-Física.The concept of thermodynamic transformation is central to classical thermodynamics.
Rengifo Munoz, Diego Fernando
core   +2 more sources

Thermodynamics of a Phase-Driven Proximity Josephson Junction

open access: yesEntropy, 2019
We study the thermodynamic properties of a superconductor/normal metal/superconductor Josephson junction in the short limit. Owing to the proximity effect, such a junction constitutes a thermodynamic system where phase difference, supercurrent ...
Francesco Vischi   +4 more
doaj   +1 more source

Non-equilibrium thermodynamic analysis of quasi-static granular flows

open access: yesActa Physica Sinica, 2014
Granular flow is usually divided into three kinds of flow pattern, namely quasi static flow, slow flow, and rapid flow. The core issue of the research is the constitutive relation. A series of constitutive relations of application value have been received up to now, however, the study on principal theory is insufficient.
null Liu Zhong-Miao   +3 more
openaire   +1 more source

Study on the Adsorption Properties of Cr(VI) by Biochar with Different Treatments [PDF]

open access: yesNature Environment and Pollution Technology, 2023
The paper investigated the adsorption of Cr(VI) on biochar in simulated wastewater by static adsorption method, Fourier Transform Infrared spectra (FTIR), Raman, X-ray photoelectron spectroscopy (XPS), scanning electron microscope (SEM), and transmission
X. Zhang
doaj   +1 more source

On the Thermodynamic Origin of Gravitational Force by Applying Spacetime Entanglement Entropy and the Unruh Effect

open access: yesEntropy, 2019
We consider the thermodynamic origin of the gravitational force of matter by applying the spacetime entanglement entropy and the Unruh effect originating from vacuum quantum fluctuations.
Shujuan Liu, Hongwei Xiong
doaj   +1 more source

Accurate equation of state of rhenium as pressure scale up to 130 GPa and 3200 K

open access: yesAIP Advances, 2022
The equations of states (EOSs) of inert metals are generally used as pressure scales in a high-pressure experiment. However, the thermodynamic model and the method used to constrain the parameters of the EOSs of these metals may cause pressure deviations
Yunting Xian   +4 more
doaj   +1 more source

Preparation of high-capacity magnetic polystyrene sulfonate sodium material based on SI-ATRP method and its adsorption property research for sulfonamide antibiotics

open access: yesBMC Chemistry, 2020
A novel polystyrene sulfonate sodium (PSS) magnetic material was prepared by surface-initiated atom transfer radical polymerization (SI-ATRP). The starting materials were brominated magnetic material as the carrier and macroinitiator, sodium styrene ...
Huachun Liu   +5 more
doaj   +1 more source

Statistical forces from close-to-equilibrium media

open access: yesNew Journal of Physics, 2015
We discuss the physical meaning and significance of statistical forces on quasi-static probes in first order around detailed balance for driven media. Exploiting the quasi-static energetics and the structure of (McLennan) steady nonequilibrium ensembles,
Urna Basu   +2 more
doaj   +1 more source

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