Results 21 to 30 of about 93,742 (313)

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

Topology Based Object Tracking [PDF]

open access: yesMathematical and Computational Applications, 2019
A model for tracking objects whose topological properties change over time is proposed. Such changes include the splitting of an object into multiple objects or the merging of multiple objects into a single object. The proposed model employs a novel formulation of the tracking problem in terms of homology theory whereby 0-dimensional homology classes ...
openaire   +4 more sources

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

Topology-based Sparsification of Graph Annotations [PDF]

open access: yesBioinformatics, 2020
AbstractSince the amount of published biological sequencing data is growing exponentially, efficient methods for storing and indexing this data are more needed than ever to truly benefit from this invaluable resource for biomedical research. Labeled de Bruijn graphs are a frequently-used approach for representing large sets of sequencing data.
Gunnar Rätsch   +11 more
openaire   +7 more sources

Degree-Based Topological Indices [PDF]

open access: yesCroatica Chemica Acta, 2013
The degree of a vertex of a molecular graph is the number of first neighbors of this vertex. A large number of molecular-graph-based structure descriptors (topological indices) have been conceived, depending on vertex degrees. We summarize their main properties, and provide a critical comparative study thereof.
openaire   +4 more sources

Topological insulators based on HgTe [PDF]

open access: yesUspekhi Fizicheskih Nauk, 2019
Abstract The most interesting experimental results obtained in studies of 2D and 3D topological insulators (TIs) based on HgTe quantum wells and films are reviewed. In the case of 2D TIs, these include the observation of nonlocal ballistic and diffusion transport, the magnetic breakdown of 2D TIs, and an anomalous temperature dependence ...
E. B. Olshanetsky   +8 more
openaire   +3 more sources

Topological groups with a bc-base [PDF]

open access: yesTopology and its Applications, 2015
Approximately 10 years ago, Zambakhidze asked whether every non-zero-dimensional topological group with a bc-base is locally compact. Below we show that the small inductive dimension ind of any non-locally compact group with such a base doesn't exceed 1.
Arhangel'skii, A.V., van Mill, J.
openaire   +3 more sources

Synthesis and Numerical Analysis of Compliant Devices: A Topology Optimization Approach for Mechanisms and Robotic Systems

open access: yesAdvances in Materials Science and Engineering, 2022
The topology optimization design invariably shall be used in various applications such as four bar mechanisms, robotics designs, aircraft engineering designs, and many other mechanical innovative systems for improving the efficiency in the system.
S. Premanand   +2 more
doaj   +1 more source

Time-Series Representation Learning in Topology Prediction for Passive Optical Network of Telecom Operators

open access: yesSensors, 2023
The passive optical network (PON) is widely used in optical fiber communication thanks to its low cost and low resource consumption. However, the passiveness brings about a critical problem that it requires manual work to identify the topology structure,
Haoran Zhao   +9 more
doaj   +1 more source

Reliability Topology Optimization of Collaborative Design for Complex Products Under Uncertainties Based on the TLBO Algorithm

open access: yesEngineering, 2023
The topology optimization design of complex products can significantly improve material and power savings, and reduce inertial forces and mechanical vibrations effectively.
Zhaoxi Hong   +4 more
doaj   +1 more source

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