Results 291 to 300 of about 444,519 (336)

Topological rainbow based on graded topological photonic crystals

Optics Letters, 2021
Topological photonic crystal provides a robust platform for nanophotonic devices. However, few reports have been found to realize multiple frequency routing based on topological photonic states, which have restricted further applications in the field of nanophotonic devices.
Hongyu Zhang, Long Qian, Chenyang Wang, Chang-Yin Ji, Yaotian Liu, Jiali Chen, Cuicui Lu   +6 more
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Reliability-based topology optimization

Structural and Multidisciplinary Optimization, 2004
Udgivelsesdato ...
Kharmanda, G., Olhoff, Niels, Mohamed, A., Lemaire, M.   +3 more
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Region-Based Topology

Journal of Philosophical Logic, 1997
This is a very original investigation in the philosophy of topology. Its basic ideas are not totally unheard of; the author cites anticipations by K. Menger and A. Tarski, and a topologist notes more technical bases in \textit{M. H. Stone's} apparatus of Boolean maps [Trans. Am. Math. Soc. 41, 375-481 (1937; Zbl 0017.13502)]\ and in \textit{A.
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Low-Complexity Topological Derivative-Based Segmentation

IEEE Transactions on Image Processing, 2015
Topological derivative has been employed for image segmentation and restoration. The topological derivative-based segmentation uses two sparse matrices, and the computational complexity of the segmentation grows up dramatically as the image size increases due to the size of the sparse matrix.
null Choong Sang Cho, null Sangkeun Lee
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Topology optimization based on spline-based meshfree method using topological derivatives

Journal of Mechanical Science and Technology, 2017
Spline-based meshfree method (SBMFM) is originated from the Isogeometric analysis (IGA) which integrates design and analysis through Non-uniform rational B-spline (NURBS) basis functions. SBMFM utilizes trimming technique of CAD system by representing the domain using NURBS curves. In this work, an explicit boundary topology optimization using SBMFM is
Junyoung Hur, Pilseong Kang, Sung-Kie Youn   +2 more
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Waypoint-based Topology Inference

ICC 2020 - 2020 IEEE International Conference on Communications (ICC), 2020
Traditional network topology inference aims at reconstructing the routing trees rooted at each probing source from end-to-end measurements. However, due to emerging technologies such as network function virtualization, software defined networking, and segment routing, many modern networks are capable of supporting generalized forwarding that can create
Yilei Lin, Ting He, Shiqiang Wang, Kevin Chan   +3 more
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Topology Based Corner Detection

2007 IEEE 15th Signal Processing and Communications Applications, 2007
A new corner detection algorithm based on the topological median filter is proposed. Topological quasi dilation and erosion operators with circular structuring element are used to detect the corners on gray level images.
Hakan Guray Senel, Ibrahim Kivanc Cihan
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Thinning-based topological exploration using position probability of topological nodes

Proceedings 2006 IEEE International Conference on Robotics and Automation, 2006. ICRA 2006., 2006
A grid map can be efficiently used in navigation, but this type of map requires a large amount of memory in proportion to the size of the environment. As an alternative, a topological map can be used to represent the environment in terms of discrete nodes with edges connecting them.
Tae-Bum Kwon, Jae-Bok Song
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Metric-Based Topology Investigation

2009 Eighth International Conference on Networks, 2009
We introduce our new Routing with Metric-based Topology Investigation (RMTI) protocol, which is compatible withall RIP protocols and, in contrast to RIP, is able to detectrouting loops simply by carefully examining incoming routing updates. We do not just reject old routing information as soon as new and seemingly better routing information occurs at ...
F. Bohdanowicz, H. Dickel, Ch. Steigner
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