Results 141 to 150 of about 184 (184)

A Functional 2D Carbon Allotrope Combining Nanoporous Graphene and Biphenylene Segments

Advanced Materials, EarlyView.
The synthesis of a novel nanoporous graphene (NPG) is reported with biphenylene segments via thermal fusion of 12‐armchair porous graphene nanoribbons grown on gold surfaces. Characterization using STM, AFM, and DFT reveals low‐defect semiconducting behaviour and tunable band gaps.
Paula Angulo‐Portugal, Martin Irizar, Longfeng Huang, Mamun Sarker, Mustafa A. Ashoush, Zakaria M. Abd El‐Fattah, Johannes Barth, Frederik Schiller, Afaf El‐Sayed, Fei Gao, Dimas G. de Oteyza, Alexander Sinitskii, Aran Garcia‐Lekue, Martina Corso, Ignacio Piquero‐Zulaica   +14 more
wiley   +1 more source

2D Co‐Mo‐Hydroxide‐Based Multifunctional Material for the Development of H2‐Based Clean Energy Technologies

Advanced Materials, EarlyView.
2D α‐Co(OH)2 interleaved with Mo species displays an appealing dual functionality for the production and use of green hydrogen.Mo incorporation greatly benefits the electrochemical behaviour in Oxygen Evolution Reaction for H2 production, while the magnetocaloric response at liquid H2 temperature paves the way for alternative cryogenic refrigerants ...
Daniel Muñoz‐Gil, Celia Castillo‐Blas, Dawid Krystian Feler, Isabel Gómez‐Recio, Miguel Tinoco, Ana Querejeta‐Fernández, Rodrigo González‐Prieto, Felipe Gándara, Romualdo Santos Silva Jr, Pilar Ferrer, Carlos Prieto, Luc Lajaunie, José Luis Martinez‐Peña, María Luisa Ruiz‐González, José María González‐Calbet   +14 more
wiley   +1 more source

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Convexity on complete lattices

Soft Computing, 2020
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Hongping Liu, Fu-Gui Shi
openaire   +1 more source

Fuzzy complete lattices

Fuzzy Sets and Systems, 2009
The authors present an approach to fuzzification of complete lattices, which is a special kind of complete \(\Omega\)-lattices defined by Lai and Zhang. Tarski fixed-point theorem for the \(L\)-fuzzy complete lattices was proved in a different way. Some fuzzy powerset operators are suggested.
Qi-Ye Zhang, Weixian Xie, Lei Fan
openaire   +2 more sources

Connectivity on Complete Lattices

Journal of Mathematical Imaging and Vision, 1996
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
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Approximation operators on complete completely distributive lattices

Information Sciences, 2013
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Keyun Qin, Zheng Pei 0001, Jilin Yang, Yang Xu 0001   +3 more
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Double Approximation and Complete Lattices

Fundamenta Informaticae, 2009
We explore lattice theoretic aspects in rough set theory in terms of the duality between algebra and representation. Approximation spaces are dual to complete atomic Boolean algebras in the sense that there is an adjunction between corresponding suitable categories.
Taichi Haruna, Yukio-Pegio Gunji
openaire   +2 more sources

Completeness in Semi-Lattices

Canadian Journal of Mathematics, 1957
Let (X, ≤) be a partially ordered set, that is, X is a set and ≤ is a reflexive, anti-symmetric, transitive, binary relation on X.We write,for each x ∈ X. If, moreover,exists for each x and y in X, then (X, ≤) is said to be a semi-lattice.
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A COMPLETENESS THEOREM FOR CORRELATION LATTICES

Mathematical Logic Quarterly, 1983
In this paper the authors study the varieties \(A_ n\), n fixed odd, of all Boolean correlation lattices. They obtain a characterization of simple algebras and prove that they are functionally complete; they also show that the variety \(A_ n\) is arithmetical.
Dietmar Schweigert, Magdalena Szymanska
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The Complete Congruence Lattice of a Complete Lattice

1990
G. Birkhoff [1] raised the following question in 1945: Is every complete lattice isomorphic to the lattice of congruence relations of a suitable (infinitary) algebra? In 1948, Birkhoff restated this question in the Second Edition of his Lattice Theory [2]; however, “(infinitary)” was dropped from the question. This was intentional; G. Birkhoff referred
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