Results 41 to 50 of about 27,994,628 (385)

Topological invariants of Floquet systems: General formulation, special properties, and Floquet topological defects [PDF]

open access: yesPhys. Rev. B 96, 195303 (2017), 2017
Periodically driven (Floquet) systems have been under active theoretical and experimental investigations. This paper aims at a systematic study in the following aspects of Floquet systems: (i) A systematic formulation of topological invariants of Floquet systems based on the cooperation of topology and symmetries. Topological invariants are constructed
arxiv   +1 more source

Channel-wise Topology Refinement Graph Convolution for Skeleton-Based Action Recognition [PDF]

open access: yesIEEE International Conference on Computer Vision, 2021
Graph convolutional networks (GCNs) have been widely used and achieved remarkable results in skeleton-based action recognition. In GCNs, graph topology dominates feature aggregation and therefore is the key to extracting representative features.
Yuxin Chen   +5 more
semanticscholar   +1 more source

An Application of an Information System via modern Topology [PDF]

open access: yesJournal of Engineering Research - Egypt, 2022
This paper will discuss developing a new mathematical method through analysis ofinformation system where we deal with some ambiguity problems. We will representthis knowledge into one or more types of classes then we can use these classes to makea ...
Salwa Ahmed Elsayed   +3 more
doaj   +1 more source

On the metrizability of spaces with a sharp base [PDF]

open access: yes, 2001
A base $\mathcal{B}$ for a space $X$ is said to be sharp if, whenever $x\in X$ and $(B_n)_{n\in\omega}$ is a sequence of pairwise distinct elements of $\mathcal{B}$ each containing $x$, the collection $\{\bigcap_{j\le n}B_j:n\in\omega\}$ is a local base ...
Good, Chris   +2 more
core   +3 more sources

A universal approach to coverage probability and throughput analysis for cellular networks [PDF]

open access: yes, 2015
This paper proposes a novel tractable approach for accurately analyzing both the coverage probability and the achievable throughput of cellular networks.
Chen, Sheng   +4 more
core   +1 more source

Wake Structures and Surface Patterns of the DrivAer Notchback Car Model under Side Wind Conditions [PDF]

open access: yes, 2020
The flow field topology of passenger cars considerably changes under side wind conditions. This changes the surface pressure, aerodynamic force, and drag and performance of a vehicle.
Nayeri, Christian Navid   +2 more
core   +1 more source

Evaluation of Brønsted acidity and proton topology in Zr- and Hf-based metal–organic frameworks using potentiometric acid–base titration

open access: yes, 2016
Potentiometric acid–base titration is introduced as a method to evaluate pKa values (Bronsted acidity) of protons present in the nodes of water stable Zr6- and Hf6-based metal–organic frameworks (MOFs), including UiO-type MOFs, NU-1000, and MOF-808.
Rachel C. Klet   +4 more
semanticscholar   +1 more source

Design of a Broadband Amplifier for High Speed Applications [PDF]

open access: yes, 2002
This paper provides comprehensive insight into the design approach followed for an amplifier dedicated to high speed base band signals. To demonstrate the methodology, an amplifier consisting of nine PHEMT cascode cells within a distributed amplifier ...
Camargo, E.   +4 more
core   +1 more source

Acoustic non-Hermitian skin effect from twisted winding topology [PDF]

open access: yesNature Communications, 2021
The recently discovered non-Hermitian skin effect (NHSE) manifests the breakdown of current classification of topological phases in energy-nonconservative systems, and necessitates the introduction of non-Hermitian band topology.
Li Zhang   +13 more
semanticscholar   +1 more source

Topology on grill-filter space and continuity

open access: yesBoletim da Sociedade Paranaense de Matemática, 2013
This paper will discuss about a new topology, obtained from a grill and a filter on the same set. The Characterizations and open base of the new topology are also aim of this paper. The generalized continuity is also a part of this paper.
Shyamapada Modak
doaj   +1 more source

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