Results 21 to 30 of about 538,877 (298)

Improved Bounds on Fourier Entropy and Min-entropy [PDF]

open access: yesACM Transactions on Computation Theory, 2021
Given a Boolean function f:{ -1,1} ^{n}→ { -1,1, define the Fourier distribution to be the distribution on subsets of [n], where each S ⊆ [n] is sampled with probability f ˆ (S) 2 . The Fourier Entropy-influence (FEI) conjecture of Friedgut and Kalai [28] seeks to relate two fundamental ...
S. Arunachalam (Srinivasan)   +4 more
openaire   +15 more sources

Entropy of the Mixture of Sources and Entropy Dimension [PDF]

open access: yesIEEE Transactions on Information Theory, 2012
We investigate the problem of the entropy of the mixture of sources. There is given an estimation of the entropy and entropy dimension of convex combination of measures. The proof is based on our alternative definition of the entropy based on measures instead of partitions.
Marek Smieja, Jacek Tabor
openaire   +4 more sources

Comparative study on surface oxygenation and widening of carbon fibers made electrochemical electrodes

open access: yesAIP Advances, 2023
Polarity and surface area are two important factors in determining electrochemical performance and are here studied systematically using carbon fiber cloths (CFCs) as electrodes. The CFC polarity is enhanced by plasma treatment that creates polar groups,
Hsin-Jung Tsai   +4 more
doaj   +1 more source

High-Temperature Tribological Behavior of Al0.3Cr0.5Fe1.5Mn0.5Ni High-Entropy Alloys With Addition of Titanium and Carbon

open access: yesFrontiers in Materials, 2022
In this study, the Al0.3Cr0.5Fe1.5Mn0.5Ni high-entropy alloys (HEAs) with addition of titanium and carbon was prepared. The as-cast alloys were composed of FCC solid solution and TiC particles, and were further aged and strengthened by precipitation of ...
Chun-Hao Peng   +7 more
doaj   +1 more source

Entropy 2022 Best Paper Award

open access: yesEntropy, 2022
On behalf of the Editor-in-Chief, Prof [...]
Entropy Editorial Office
doaj   +1 more source

Cryogenic strength improvement by utilizing room-temperature deformation twinning in a partially recrystallized VCrMnFeCoNi high-entropy alloy

open access: yesNature Communications, 2017
CrMnFeCoNi high entropy alloys have high fracture toughness at cryogenic temperatures due to deformation twinning but twinning is not active in this alloy at room temperature. Here authors optimize composition and thermomechanical treatments to introduce
Y. H. Jo   +7 more
doaj   +1 more source

Strain-rate sensitivity of high-entropy alloys and its significance in deformation

open access: yesMaterials Research Letters, 2019
Strain-rate dependence in face centered cubic high entropy alloys still remains controversial despite extensive efforts on this topic. Strain-rate sensitivity reflects underlying thermally-activated deformation and the controversy boils down to the ...
Jongun Moon   +5 more
doaj   +1 more source

Significant Improvement in Wear Resistance of CoCrFeNi High-Entropy Alloy via Boron Doping

open access: yesLubricants, 2023
CoCrFeNi high-entropy alloy (HEA) exhibits excellent mechanical properties but relatively poor wear resistance. In particular, when the load reaches a certain level and the deformation mechanism of the CoCrFeNi HEA changes, the formation of shear bands ...
Haitao Zhang   +5 more
doaj   +1 more source

Entropy Accumulation [PDF]

open access: yesCommunications in Mathematical Physics, 2020
AbstractWe ask the question whether entropy accumulates, in the sense that the operationally relevant total uncertainty about an n-partite system $$A = (A_1, \ldots A_n)$$ A = ( A 1 , … A n ) corresponds to the sum of the entropies of its parts $$A_i$$ A i .
Dupuis, Frédéric   +2 more
openaire   +4 more sources

Acknowledgement to Reviewers of Entropy in 2018

open access: yesEntropy, 2019
Rigorous peer-review is the corner-stone of high-quality academic publishing [...]
Entropy Editorial Office
doaj   +1 more source

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