We revisit the decoupling of neutrinos in the early universe with flavour oscillations. We rederive the quantum kinetic equations which determine the neutrino evolution based on a BBGKY-like hierarchy, and include the full collision term. We focus on the case of zero chemical potential and solve these equations numerically. We also develop an appro...
The main purpose of this work is to develop a practical and consistent model of multi-phase flow in porous media. The thermodynamics of irreversible processes is applied to the representative elementary volume of a porous medium filled with multiple com-positional fluids. The entropy production is derived and analyzed in order to establish phenomen...
Published in Nanomaterials (Basel, Switzerland)
Small system properties are known to depend on geometric variables in ways that are insignificant for macroscopic systems. Small system considerations are therefore usually added to the conventional description as needed. This paper presents a thermodynamic analysis of adsorbed films of any size in a systematic and general way within the framework ...
Published in eLife
Computational simulations, akin to wetlab experimentation, are subject to statistical fluctuations. Assessing the magnitude of these fluctuations, that is, assigning uncertainties to the computed results, is of critical importance to drawing statistically reliable conclusions. Here, we use a simulation box size as an independent variable, to demons...
For a pure SU(2) Yang-Mills theory in 4D we revisit the spatial, ball-like region of radius $r_0$, filled with pressureless deconfining phase of a finite energy density, which represents the self-intersection of a figure-eight shaped center-vortex loop. The entire soliton (vortex loop plus region of self-intersection) can be considered an excitatio...
Published in Russian Metallurgy (Metally)
AbstractThe corrosion electrochemical behavior of molybdenum depending on the melt composition (imitators of spent nuclear fuel (SNF) components) in an oxidizing atmosphere is studied. Thermodynamic analysis of possible corrosion processes is performed using the HSC Chemistry 9.0 software in the Equilibrium calculations module. The rate of metal co...
Published in Environmental technology
Magnetic separation, a promising bioseparation technology, is confronted with the challenges in recovery and recycle of magnetic matters during algae harvesting for biofuel extraction. The thermodynamic method was used to characterize the surface interactions between MNPs and algae cells. Three methods were adopted to detach magnetic nanoparticles-...
Published in Russian Engineering Research
AbstractAs is established here, the classical interpretation of the first law of thermodynamics is inconsistent with the processes actually occurring in piston-based internal combustion engines. A new interpretation is proposed.
Published in High Temperature Materials and Processes
The bonding character of liquid lead telluride PbTe \text{PbTe} is thermodynamically investigated in detail. Its possibility as an ionic melt composed of cation Pb 2 + {\text{Pb}}^{2+} and anion Te 2 − {\text{Te}}^{2-} is not acceptable, by comparing the ionization energy of Pb \text{Pb} atom, electron affinity of Te \text{Te} atom and the ionic bo...
Phase transformations in multicomponent rare earth sesquioxides were studied by splat quenching from the melt, high-temperature differential thermal analysis and synchrotron X-ray diffraction on laser-heated samples. Three compositions were prepared by the solution combustion method: (La,Sm,Dy,Er,RE)2O3, where all oxides are in equimolar ratios and...
