Results 51 to 60 of about 106,609 (287)

Order structure of order-to-topological continuous operator

open access: yesTurkish Journal of Mathematics
Summary: Let \(J\) be a vector lattice, and \(W\) be a topological vector space. An operator \(K: J \rightarrow W\) is called an order-to-topological continuous operator if \(u_\alpha\stackrel{o}{\rightarrow} 0\) in \(J\) implies \(K(u_\alpha)\stackrel{\tau}{\rightarrow} 0\) in \(W\) for each net (\(u_\alpha\)) in \(J\).
Keleş, Gül Sinem   +2 more
openaire   +2 more sources

Additive Manufacturing of Continuous Fibre Reinforced Composites: Process, Characterisation, Modelling, and Sustainability

open access: yesAdvanced Engineering Materials, EarlyView.
Additive manufacturing provides precise control over the placement of continuous fibres within polymer matrices, enabling customised mechanical performance in composite components. This article explores processing strategies, mechanical testing, and modelling approaches for additive manufactured continuous fibre‐reinforced composites.
Cherian Thomas, Amir Hosein Sakhaei
wiley   +1 more source

High topological charge lasing in quasicrystals

open access: yesNature Communications
Photonic modes exhibiting a polarization winding akin to a vortex possess an integer topological charge. Lasing with topological charge 1 or 2 can be realized in periodic lattices of up to six-fold rotational symmetry—higher order charges require ...
Kristian Arjas   +4 more
doaj   +1 more source

Direct Metal Deposition of Graphene–Ti28Nb35.4Zr Matrix Composites With Enhanced Mechanical, Corrosion, and Biocompatibility Properties for Bone Implants

open access: yesAdvanced Engineering Materials, EarlyView.
Graphene nanoplatelet (0.1 wt.%) reinforcement significantly enhances the performance of β Ti‐28Nb‐35.4Zr alloy. Grain refinement, reduced water contact angle, and improved surface characteristics promote osteoblast adhesion and complete surface coverage after 7 days.
Khurram Munir   +5 more
wiley   +1 more source

Generation and regularization of zigzag focal conic domains guided by thermodynamic-driven topological defect evolution

open access: yesGiant
Liquid crystals, as typical anisotropic building blocks, tend to self-assemble into various ordered architectures during distinct thermodynamic processes.
Daoxing Luo   +4 more
doaj   +1 more source

Near-Field Evolution of Optical Vortices and Their Spatial Ordering behind a Fork-Shaped Grating

open access: yesPhotonics, 2023
Fork-shaped gratings are periodic structures containing a spatial dislocation known to be used for the production of optical vortices in a far field.
Denis A. Ikonnikov   +3 more
doaj   +1 more source

Magnetic Control of Chiral Hybridized Phonon Magnetic Moments in Ferrimagnets Fe2‐xZnxMo3O8

open access: yesAdvanced Functional Materials, EarlyView.
Helicity‐resolved magneto‐Raman spectroscopy reveals magnetic control of chiral phonon magnetic moments in polar ferrimagnet (ZnxFe2−xMo3O₈). Large spontaneous zero‐field phonon splittings, selective phonon–magnon coupling, and asymmetric Zeeman responses demonstrate that phonon chirality is governed by magnon‐phonon coupling and magnetization.
Youngsu Choi   +8 more
wiley   +1 more source

Strong interplay between polar and structural topologies

open access: yesNature Communications
Topological structures in condensed matter systems unlock new possibilities for the development of nanoelectronic devices. However, the potential of antiferroelectrics to host topological features remains largely unexplored, constrained by significant ...
Ru-Jian Jiang   +12 more
doaj   +1 more source

Simplifying the bipartite matching topology recovery for vectorized building footprint extraction

open access: yesInternational Journal of Applied Earth Observations and Geoinformation
Extracting vectorized building footprints from high-resolution imagery requires precise corner localization, robust boundary connectivity, and the generation of spatially ordered topological structures that faithfully encompasses the building area. These
Libo Cheng   +7 more
doaj   +1 more source

Topological Ramsey spaces from Fra\"iss\'e classes, Ramsey-classification theorems, and initial structures in the Tukey types of p-points [PDF]

open access: yes, 2015
A general method for constructing a new class of topological Ramsey spaces is presented. Members of such spaces are infinite sequences of products of Fra\"iss\'e classes of finite relational structures satisfying the Ramsey property.
Dobrinen, Natasha   +2 more
core   +1 more source

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