Results 11 to 20 of about 4,725,620 (197)

Topological Nanophotonic Wavelength Router Based on Topology Optimization [PDF]

open access: yesMicromachines, 2021
The topological nanophotonic wavelength router, which can steer light with different wavelength signals into different topological channels, plays a key role in optical information processing. However, no effective method has been found to realize such a topological nanophotonic device.
Hongyi Yuan   +5 more
openaire   +3 more sources

$P$-bases and topological groups [PDF]

open access: yesProceedings of the American Mathematical Society, 2021
A topological space $X$ is defined to have a neighborhood $P$-base at any $x\in X$ from some poset $P$ if there exists a neighborhood base $(U_p[x])_{p\in P}$ at $x$ such that $U_p[x]\subseteq U_{p'}[x]$ for all $p\geq p'$ in $P$. We prove that a compact space is countable, hence metrizable, if it has countable scattered height and a $\mathcal{K}(M ...
openaire   +3 more sources

Interior topology: a new approach in topology [PDF]

open access: yes, 2022
This paper defined a new type of topology known as Interior topology. This work falls among the types of topology (such as general topology, supra topology, generalized topology, and filter) that are motivated by real-world concepts such as the orbits of
Almyaly, Amer Himza, Amer Himza Almyaly
core   +1 more source

Topological rainbow based on coupling of topological waveguide and cavity

open access: yesOptics Express, 2023
Topological photonics and topological photonic states have opened up a new frontier for optical manipulation and robust light trapping. The topological rainbow can separate different frequencies of topological states into different positions. This work combines a topological photonic crystal waveguide (topological PCW) with the optical cavity.
Sayed Elshahat, Hongyu Zhang, Cuicui Lu
openaire   +2 more sources

The Upgrade of Topological Group Based on a New Hyper-topology [PDF]

open access: yesFuzzy Information and Engineering, 2011
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Zhong, Yu-Bin, Li, Hong-Xing
openaire   +2 more sources

Topological, or Non-topological? A Deep Learning Based Prediction

open access: yesCoRR, 2023
Prediction and discovery of new materials with desired properties are at the forefront of quantum science and technology research. A major bottleneck in this field is the computational resources and time complexity related to finding new materials from ab initio calculations.
Ashiqur Rasul   +5 more
openaire   +2 more sources

Methods for designing the next generation of aircraft architectures using topology optimisation [PDF]

open access: yes, 2010
The need from energy efficient transportation has resulted in a growing interest in new aircraft configurations such as the Blended Wing Body. There is very little collective knowledge on the optimal structural layouts of these aircraft, and the ...
Eves, Jamie Samantha
core   +5 more sources

Beyond Node Degree: Evaluating AS Topology Models [PDF]

open access: yes, 2012
This is the accepted version of 'Beyond Node Degree: Evaluating AS Topology Models', archived originally at arXiv:0807.2023v1 [cs.NI] 13 July 2008.Many models have been proposed to generate Internet Autonomous System (AS) topologies, most of which make ...
Mortier, R   +7 more
core   +2 more sources

VGAE-AMF: A Novel Topology Reconstruction Algorithm for Invulnerability of Ocean Wireless Sensor Networks Based on Graph Neural Network

open access: yesJournal of Marine Science and Engineering, 2023
Ocean wireless sensor networks (OWSNs) play an important role in marine environment monitoring, underwater target tracking, and marine defense. OWSNs not only monitor the surface information in real time but also act as an important relay layer for ...
Ying Zhang   +3 more
doaj   +1 more source

Simultaneous Material and Topology Optimization Based on Topological Derivatives [PDF]

open access: yes, 2014
We use an asymptotic expansion of the compliance cost functional in linear elasticity to find the optimal material inside elliptic inclusions. We extend the proposed method to material optimization on the whole domain and compare the global quality of the solutions for different inclusion sizes.
Jannis Greifenstein, Michael Stingl
openaire   +1 more source

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