Results 21 to 30 of about 1,285,086 (339)

Electric field created p–n junction in composite films made from carbon nanotubes, iron (III) sulfate and polyvinyl alcohol

open access: yesScientific Reports, 2022
Suspension made of Fe2(SO4)3(aq), polyvinyl alcohol and carbon nanotubes is placed in electric field to separate charges. Charges remain separated as suspension solidifies, forming composite films with cations and anions enriched at opposite sides ...
Hsin-Jung Tsai   +3 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

Sofic entropy and amenable groups [PDF]

open access: yes, 2011
In previous work, I introduced a measure-conjugacy invariant for sofic group actions called sofic entropy. Here it is proven that the sofic entropy of an amenable group action equals its classical entropy. The proof uses a new measure-conjugacy invariant
Bowen, Lewis
core   +1 more source

Acknowledgement to Reviewers of Entropy in 2014

open access: yesEntropy, 2015
The editors of Entropy would like to express their sincere gratitude to the following reviewers for assessing manuscripts in 2014:[...]
Entropy Editorial Office
doaj   +1 more source

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

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   +2 more sources

Acknowledgement to Reviewers of Entropy in 2016

open access: yesEntropy, 2017
The editors of Entropy would like to express their sincere gratitude to the following reviewers for assessing manuscripts in 2016.[...]
Entropy Editorial Office
doaj   +1 more source

Transfer Entropy [PDF]

open access: yesEntropy, 2018
Statistical relationships among the variables of a complex system reveal a lot about its physical behavior[...]
openaire   +6 more sources

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

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