Results 31 to 40 of about 166,491,607 (304)

Perspective: Photonic flatbands

APL Photonics, 2018
Flatbands are receiving increasing theoretical and experimental attention in the field of photonics, in particular in the field of photonic lattices.
Daniel Leykam, Sergej Flach
doaj   +1 more source

Fuzzy Soft Sets and Fuzzy Soft Lattices [PDF]

International Journal of Computational Intelligence Systems, 2012
The theory of soft sets was introduced by Molodtsov in 1999 in order to deal with uncertainties. In this paper, the notion of fuzzy soft lattice is defined and some related properties are derived, which extends the notion of a fuzzy lattice to include ...
Yingchao Shao, Keyun Qin
doaj   +1 more source

Higher-Order Theories for Doubly Curved Laminated Lattice and Honeycomb Structures [PDF]

14th WCCM-ECCOMAS Congress, 2021
A collocation model based on a Generalized Differential Quadrature Method (GDQM) is proposed for the dynamic analysis of anisotropic curved laminated structures with a central lattice core and different external constraints. The theory is based on the Equivalent Single Layer (ESL) approach, together with higher-order kinematic assumptions.
Tornabene F., Viscoti M., Dimitri R.
openaire   +1 more source

Internal structure of hexagonal skyrmion lattices in cubic helimagnets [PDF]

, 2016
We report the most precise observations to date concerning the spin structure of magnetic skyrmions in a nanowedge specimen of cubic B20 structured FeGe.
IFW Dresden, Osaka Prefecture University, Krajnak, Matus, Stamps, R. L., McGrouther, D., JST, PRESTO, McFadzean, Sam, Stamps, Robert, Hiroshima University, Krajnak, M., Theory of Condensed Matter, Bogdanov, A. N., Togawa, Yoshihiko, Lamb, R. J., Lamb, R.J., LAMB, Raymond, McVitie, Stephen, McGrouther, Damien, Leonov, A.O., University of Glasgow, McVitie, S., McFadzean, S., Stamps, R.L., Togawa, Y., Leonov, A. O., Bogdanov, A.N.   +25 more
core   +2 more sources

Minimal Generators from Positive and Negative Attributes: Analysing the Knowledge Space of a Mathematics Course

International Journal of Computational Intelligence Systems, 2022
Formal concept analysis is a data analysis framework based on lattice theory. In this paper, we analyse the use, inside this framework, of positive and negative (mixed) attributes of a dataset, which has proved to represent more information on the use of
Manuel Ojeda-Hernández, Francisco Pérez-Gámez, Domingo López-Rodríguez, Nicolás Madrid, Ángel Mora   +4 more
doaj   +1 more source

Structure of Abrikosov vortices in SU(2) lattice gauge theory [PDF]

Physics Letters B, 1993
15 pages, latex file, three figure postscript files appended, Report No. LSUHEP No.
Singh, V., Browne, D. A., Haymaker, R. W.   +2 more
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Toughness enhancement of honeycomb lattice structures through heterogeneous design

Materials & Design, 2022
Inspired by the microstructures feature in the architected composites, which are consisted of a stiff phase and a soft phase, the concept of varying the struts thickness in the uniform honeycomb (UH) is proposed to enhance the toughness of UH structures ...
Xin Shu, Yiqi Mao, Ming Lei, Daicong Da, Shujuan Hou, Pu Zhang   +5 more
doaj   +1 more source

Stratification structures on a kind of completely distributive lattices and their applications in the theory of topological molecular lattices

Fuzzy Sets and Systems, 1997
Basing on the authors' earlier result on direct decompositions of molecular lattices, they give here the definitions of stratification structure, stratified point and stratified molecular lattice. Moreover, they consider the corresponding category \(\Omega\) taking the stratified molecular lattices as objects and the so-called stratification-preserving
Hongbin Cui, Chongyou Zheng
openaire   +1 more source

Bipartite Digraphs with Modular Concept Lattices of height 2

Қарағанды университетінің хабаршысы. Математика сериясы
This paper investigates the interaction between Formal Concept Analysis (FCA) and graph theory, with a focus on understanding the structure and representation of concept lattices derived from bipartite directed graphs.
A.O. Basheyeva, A.T. Zhussupova, Y.K. Nurlibayev   +2 more
doaj   +1 more source

Strongly correlated and topological states in [111] grown transition metal oxide thin films and heterostructures

APL Materials, 2020
We highlight recent advances in the theory, materials fabrication, and experimental characterization of strongly correlated and topological states in [111] oriented transition metal oxide thin films and heterostructures, which are notoriously difficult ...
Jak Chakhalian, Xiaoran Liu, Gregory A. Fiete   +2 more
doaj   +1 more source