Results 31 to 40 of about 153,546 (278)

Chaotic characteristics enhanced by impeller of perturbed six-bent-bladed turbine in stirred tank

open access: yesResults in Physics, 2017
The fundamental way of improving the mixing efficiency is to induce the chaotic flow in a stirred vessel. The impeller form plays an important role for changing the structure of flow field and realizing chaotic mixing.
Deyu Luan   +3 more
doaj   +1 more source

Topological structure and entropy of mixing graph maps [PDF]

open access: yesErgodic Theory and Dynamical Systems, 2013
AbstractLet ${ \mathcal{P} }_{G} $ be the family of all topologically mixing, but not exact self-maps of a topological graph $G$. It is proved that the infimum of topological entropies of maps from ${ \mathcal{P} }_{G} $ is bounded from below by $\log 3/ \Lambda (G)$, where $\Lambda (G)$ is a constant depending on the combinatorial structure of $G ...
Harańczyk, Grzegorz   +2 more
openaire   +4 more sources

Isomorphism and embedding of Borel systems on full sets

open access: yes, 2012
A Borel system consists of a measurable automorphism of a standard Borel space. We consider Borel embeddings and isomorphisms between such systems modulo null sets, i.e. sets which have measure zero for every invariant probability measure.
K. Petersen, M. Hochman, Michael Hochman
core   +1 more source

Entropy Calculation of Reversible Mixing of Ideal Gases Shows Absence of Gibbs Paradox

open access: yesEntropy, 1999
: We consider the work of reversible mixing of ideal gases using a real process. Now assumptions were made concerning infinite shifts, infinite number of cycles and infinite work to provide an accurate calculation of entropy resulting from reversible ...
Oleg Borodiouk, Vasili Tatarin
doaj   +1 more source

Local statistics of lattice dimers

open access: yes, 1997
We show how to compute the probability of any given local configuration in a random tiling of the plane with dominos. That is, we explicitly compute the measures of cylinder sets for the measure of maximal entropy $\mu$ on the space of tilings of the ...
Kenyon, Richard
core   +3 more sources

Entanglement Entropy on Fuzzy Spaces [PDF]

open access: yes, 2006
We study the entanglement entropy of a scalar filed in 2+1 spacetime where space is modeled by a fuzzy sphere and a fuzzy disc. In both models we evaluate numerically the resulting entropies and find that they are proportional to the number of boundary ...
Badis Ydri, Djamel Dou, Rafael Sorkin
core   +4 more sources

Design of Light-Weight High-Entropy Alloys

open access: yesEntropy, 2016
High-entropy alloys (HEAs) are a new class of solid-solution alloys that have attracted worldwide attention for their outstanding properties. Owing to the demand from transportation and defense industries, light-weight HEAs have also garnered widespread ...
Rui Feng   +8 more
doaj   +1 more source

Mixing and non-mixing local minima of the entropy contrast for blind source separation

open access: yes, 2006
In this paper, both non-mixing and mixing local minima of the entropy are analyzed from the viewpoint of blind source separation (BSS); they correspond respectively to acceptable and spurious solutions of the BSS problem. The contribution of this work is
Pham, D. -T., Verleysen, M., Vrins, F.
core   +3 more sources

Overshooting by convective settling

open access: yes, 2013
We study a process of slow mixing in stars with convective envelopes, which is driven by the settling of cool downward plumes below the base of the convection zone.
Andrássy, R., Spruit, H. C.
core   +1 more source

Mapping the evolution of mitochondrial complex I through structural variation

open access: yesFEBS Letters, EarlyView.
Respiratory complex I (CI) is crucial for bioenergetic metabolism in many prokaryotes and eukaryotes. It is composed of a conserved set of core subunits and additional accessory subunits that vary depending on the organism. Here, we categorize CI subunits from available structures to map the evolution of CI across eukaryotes. Respiratory complex I (CI)
Dong‐Woo Shin   +2 more
wiley   +1 more source

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