Entropy and Mixing Entropy for Weakly Nonlinear Mechanical Vibrating Systems [PDF]
Entropy, 2019 In this paper, we examine Khinchin’s entropy for two weakly nonlinear systems of oscillators. We study a system of coupled Duffing oscillators and a set of Henon−Heiles oscillators. It is shown that the general method of deriving the Khinchin&
Zahra Sotoudeh
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Negative Entropy of Mixing for Vanadium-Platinum Solutions [PDF]
Physical Review Letters, 2004 The phonon densities of states for pure vanadium and the solid solutions V-6.25% Ni, Pd, Pt were determined from inelastic neutron scattering measurements. The solute atoms caused a large stiffening of the phonons, resulting in large, negative vibrational entropies of mixing.
Delaire, O., Swan-Wood, T., Fultz, B.
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Explicit Configurational Entropy of Mixing in Molecular Dynamics Simulations. [PDF]
J Phys Chem LettThe entropy of mixing of a multicomponent system of particles is a simple expression of the molar fractions for the equilibrium state, but its intermediate values for transient (nonequilibrium) states can not be calculated directly from the particle coordinates so far.
Hanke T, Upterworth AL, Sebastiani D.
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Impact of Magnetohydrodynamics on Thermal Mixing Efficiency and Entropy Generation Analysis Passing Through a Micromixer Using Non-Newtonian Nanofluid [PDF]
MicromachinesThe present paper investigates the steady laminar flow and thermal mixing performance of non-Newtonian Al2O3 nanofluids within a two-layer cross-channel micromixer, employing three-dimensional numerical simulations to solve the governing equations across
Naas Toufik Tayeb +5 more
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A Probabilistic Description of the Configurational Entropy of Mixing
Entropy, 2014 This work presents a formalism to calculate the configurational entropy of mixing based on the identification of non-interacting atomic complexes in the mixture and the calculation of their respective probabilities, instead of computing the number of ...
Jorge Garcés
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Surface topology of mixing entropy after two-pulse laser ablation of stainless steel
Физико-химические аспекты изучения кластеров, наноструктур и наноматериалов, 2023 The paper presents experiments on crystallization from a melt with an analysis of the morphology of the emerging crystal structures, showing examples of the formation of dendritic crystals.
D.D. Tumarkina +3 more
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Effectiveness of Energy Transfer versus Mixing Entropy in Coupled Mechanical–Electrical Oscillators
Energies, 2022 Electrostatic energy harvesters convert kinetic energy into electrical energy via variable capacitors. Efforts to improve their power output are hampered by a lack of understanding of the fundamental limit for energy conversion efficiency.
Habilou Ouro-Koura +3 more
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Investigation of sluggish diffusion in FCC Al0.25CoCrFeNi high-entropy alloy
Materials Research Letters, 2021 To validate the ‘sluggish diffusion’ in high-entropy alloys, interdiffusion coefficients of individual elements and tracer diffusion coefficient of Ni were experimentally determined in FCC Al0.25CoCrFeNi alloy.
Abhishek Mehta, Yongho Sohn
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Chaotic characteristics and mixing performance of pseudoplastic fluids in a stirred tank
Open Physics, 2023 The key for improving the mixing efficiency of pseudoplastic fluids is to enhance the chaotic degree in the flow field. The xanthan gum solution was used to study the chaotic characteristics and mixing performance in a stirred tank with the impeller of ...
Zhang Xiang +3 more
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Residual Entropy, the Third Law and Latent Heat
Entropy, 2008 A novel thermodynamic treatment of residual entropy in crystals, involving the configurational partition function, is suggested, which is consistent with both classical and statistical thermodynamics.
Frank L. Lambert, Evguenii Kozliak
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