Results 301 to 310 of about 743,469 (374)

Atomically Revealing Bulk Point Defect Dynamics in Hydrogen‐Driven γ‐Fe2O3 → Fe3O4 → FeO Transformation

Advanced Functional Materials, EarlyView.
In situ TEM uncovers the atomic‐scale mechanisms underlying hydrogen‐driven γ‐Fe2O3→Fe3O4→FeO reduction. In γ‐Fe2O3, oxygen vacancies cluster around intrinsic Fe vacancies, leading to nanopore formation, whereas in Fe3O4, vacancy aggregation is suppressed, preserving a dense structure.
Yupeng Wu, Dongxiang Wu, Wenhui Zhu, Xiaobo Chen, Zhikang Zhou, Zhilu Liang, Shuonan Ye, Meng Li, Xiao Tong, Kim Kisslinger, Sooyeon Hwang, Dmitri Zakharov, Renu Sharma, Judith C. Yang, Guangwen Zhou   +14 more
wiley   +1 more source

Universal Neuromorphic Element: NbOx Memristor with Co‐Existing Volatile, Non‐Volatile, and Threshold Switching

Advanced Functional Materials, EarlyView.
A W/NbOx/Pt memristor demonstrates the coexistence of volatile, non‐volatile, and threshold switching characteristics. Volatile switching serves as a reservoir computing layer, providing dynamic short‐term processing. Non‐volatile switching, stabilized through ISPVA, improves reliable long‐term readout. Threshold switching operates as a leaky integrate
Ungbin Byun, Hyesung Na, Sungjun Kim
wiley   +1 more source

Embedding median graphs into minimal distributive ∨-semi-lattices

, 2019
Alain Gély, Miguel Couceiro, Amedeo Napoli   +2 more
openalex   +1 more source

The Theory of Derivations in Almost Distributive Lattices

, 2016
G. C. Rao, K. Ravi Babu
openalex   +1 more source

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Distributive Lattices Lattice-Groups

, 2015
This chapter begins with an introductory section which fixes the formal algebraic framework of distributive lattices and of Boolean algebras.
H. Lombardi, Claude Quitté
semanticscholar   +2 more sources

Complexity of the universal theory of bounded residuated distributive lattice-ordered groupoids

Algebra Universalis, 2019
We prove that the universal theory and the quasi-equational theory of bounded residuated distributive lattice-ordered groupoids are both EXPTIME-complete.
D. Shkatov, C. J. Alten
semanticscholar   +1 more source

Distributive Projective Lattices

Canadian Journal of Mathematics, 1970
Two basic unsolved problems of lattice theory are (1) the characterization of sublattices of free lattices and (2) the characterization of projective lattices. A solution to an important case of the first problem has been provided by Galvin and Jónsson [3], who characterize distributive sublattices of free lattices.
Baker, K. A., Hales, A. W.
openaire   +2 more sources

On the set of principal congruences in a distributive congruence lattice of an algebra

, 2017
Let Q be a subset of a finite distributive lattice D . An algebra A represents the inclusion Q ⊆ D by principal congruences if the congruence lattice of A is isomorphic to D and the ordered set of principal congruences of A corresponds to Q under this ...
G'abor Cz'edli
semanticscholar   +1 more source