Results 1 to 10 of about 344,178 (328)
Topology Adaptive Water Boundary Extraction Based on a Modified Balloon Snake: Using GF-1 Satellite Images as an Example [PDF]
Remote Sensing, 2017 Topology adaptive water boundary extraction from satellite images using parametric snakes remains challenging in the domain of image segmentation. This paper proposed a modified balloon snake (MB-Snake) method based on the balloon snake (B-Snake) method,
Wenying Du, Nengcheng Chen, Dandan Liu
doaj +2 more sources
Topology of the ambient boundary and the convergence of causal curves [PDF]
, 2015 We discuss the topological nature of the boundary spacetime, the conformal infinity of the ambient cosmological metric. Due to the existence of a homothetic group, the bounding spacetime must be equipped not with the usual Euclidean metric topology but ...
Ignatios Antoniadis, Spiros Cotsakis
openalex +5 more sources
Observation of momentum-gap topology of light at temporal interfaces in a time-synthetic lattice [PDF]
Nature CommunicationsTopological phases have prevailed across diverse disciplines, spanning electronics, photonics, and acoustics. Hitherto, the understanding of these phases has centred on energy (frequency) bandstructures, showcasing topological boundary states at spatial ...
Yudong Ren +10 more
doaj +2 more sources
Design of multiple materials structure based on an explicit and implicit hybrid topology optimization method [PDF]
Scientific ReportsIn this paper, an explicit and implicit hybrid topology optimization method is proposed for the design of multiple materials structure. The explicit topology optimization employs the moving morphable component (MMC) method to determine where the solid ...
Zhao Li +4 more
doaj +2 more sources
Some Weaker Forms of Bipolar Neutrosophic Nano * Open Sets [PDF]
Neutrosophic Sets and Systems, 2023 In this paper, the weaker forms of open sets in Bipolar Neutrosophic Nano* (BNN*) topology are studied. This topology is defined on a space of bipolar neutrosophic sets with respect to the lower, upper, boundary approximations and the union and ...
G. Gincy +2 more
doaj +1 more source
Hermitian Bulk – Non-Hermitian Boundary Correspondence
PRX Quantum, 2023 Non-Hermitian band theory distinguishes between line gaps and point gaps. While point gaps can give rise to intrinsic non-Hermitian band topology without Hermitian counterparts, line-gapped systems can always be adiabatically deformed to a Hermitian ...
Frank Schindler +3 more
doaj +1 more source
Heptagonal Neutrosophic Topology [PDF]
Neutrosophic Sets and Systems, 2023 This article aims at developing the concept of heptagonal neutrosophic topology using heptagonal neutrosophic numbers. The heptagonal neutrosophic union,intersection and complement defined to compare the HNN.
E. Kungumaraj +2 more
doaj +1 more source
Triangular Neutrosophic Topology [PDF]
Neutrosophic Sets and Systems, 2021 In this current article, the primary focus is to develop the concept of neutrosophic topology as triangular neutrosophic topology. We extend the neutrosophic set operations, we newly introduce the defuzzification, examples, and basics to clear the ...
Ali Hamza +2 more
doaj +1 more source
Proportional Topology Optimization under Reliability-based Constraints [PDF]
Journal of Applied and Computational Mechanics, 2022 Topology optimization is a methodology widely used in the design phase that has gained space in engineering. On the other hand, uncertainty is present in material properties, loads, and boundary conditions in practically any design.
Rodrigo Amaral +2 more
doaj +1 more source
Bulk-boundary thermodynamic equivalence: a topology viewpoint
Journal of High Energy Physics, 2023 Setting the cosmological constant to be dynamical, we study the bulk and boundary thermodynamics of charged Anti-de Sitter black holes. We develop mass/energy formulas in terms of thermodynamic state functions for the extended thermodynamics, mixed ...
Ming Zhang, Jie Jiang
doaj +1 more source