Results 31 to 40 of about 42,135 (268)

The topology of boundaries

open access: yesArtificial Intelligence, 1996
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
openaire   +1 more source

Topological boundary modes in isostatic lattices [PDF]

open access: yesNature Physics, 2013
Frames, or lattices consisting of mass points connected by rigid bonds or central force springs, are important model constructs that have applications in such diverse fields as structural engineering, architecture, and materials science. The difference between the number of bonds and the number of degrees of freedom of these lattices determines the ...
Kane, C. L., Lubensky, T. C.
openaire   +2 more sources

A Novel Mesh Quality Improvement Method for Boundary Elements

open access: yesJournal of Applied Mathematics, 2012
In order to improve the boundary mesh quality while maintaining the essential characteristics of discrete surfaces, a new approach combining optimization-based smoothing and topology optimization is developed. The smoothing objective function is modified,
Hou-lin Liu   +3 more
doaj   +1 more source

Boundary shape identification method for density based topology optimization

open access: yesNihon Kikai Gakkai ronbunshu, 2022
Topology optimization is an advanced design method that is used to generate lightweight and high-performance structures by determining the material distribution.
Yoshinori NISHIO, Yang LIU, Nagato ONO
doaj   +1 more source

Topology of the future chronological boundary: universality for spacelike boundaries [PDF]

open access: yesClassical and Quantum Gravity, 2000
56 pages, AMS-TeX; 1 page of figure captions (TeX); 22 figures, EPS format; to be published in Quantum Class. Grav.; principal reason for replacement is to have the figures included (also, introduction is expanded slightly, and one example is simplified)
openaire   +3 more sources

Entanglement entropy of topological orders with boundaries [PDF]

open access: yesJournal of High Energy Physics, 2018
Abstract In this paper we explore how non trivial boundary conditions could influence the entanglement entropy in a topological order in 2+1 dimensions. Specifically we consider the special class of topological orders describable by the quantum double.
Chen, Chaoyi   +3 more
openaire   +4 more sources

Research in material distribution based on topology optimization in variable section segmented thermoelectric generators

open access: yesCase Studies in Thermal Engineering
This paper investigates the material distribution of non-uniform cross-sectional segmented thermoelectric generators (STEG). Based on topology optimization methods, the material is reasonably allocated to enhance the output power and conversion ...
Qiuchen Fu   +4 more
doaj   +1 more source

A level-set-based topology optimisation of carpet cloaking devices with the boundary element method

open access: yesMechanical Engineering Journal, 2016
We investigate a topology optimisation based on the level set method for a design problem of carpet cloaking devices. In topology optimisation of carpet cloaking devices, we need to calculate the electromagnetic response in a semi-infinite domain. We use
Kenta NAKAMOTO   +3 more
doaj   +1 more source

Infernal and exceptional edge modes: non-Hermitian topology beyond the skin effect

open access: yesJPhys Materials, 2023
The classification of point gap topology in all local non-Hermitian (NH) symmetry classes has been recently established. However, many entries in the resulting periodic table have only been discussed in a formal setting and still lack a physical ...
M Michael Denner   +2 more
doaj   +1 more source

Research on the recognition technology of regional network topology boundary

open access: yesDianzi Jishu Yingyong
Network boundary recognition is an important step in network topology measurement. Currently, regional network boundary recognition technology is mainly based on sampling detection of regional networks and boundary screening using IP address based ...
Zhang Haoyu   +4 more
doaj   +1 more source

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