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Power diagrams and sparse paged grids for high resolution adaptive liquids
2017
ACM Transactions on Graphics
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Batty would like to thank Ted Ying for carrying out preliminary explorations on quadtrees. populated uniform grid for high resolution interface tracking with a narrow band level set representation. ...
Using the recently introduced SPGrid data structure, sparse uniform grids in both the power diagram discretization and our narrow band level set can be compactly stored and efficiently updated via streaming ...
Second, a low-level data structure named SPGrid (or "Sparse Paged Grid") was proposed for compact storage and efficient stream processing of sparsely populated uniform grids. ...
doi:10.1145/3072959.3073625
fatcat:2znloe3rjvgqde3naillzkoh2e
Out-of-core and compressed level set methods
2007
ACM Transactions on Graphics
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recently proposed narrow band data structures like the DT-Grid of Nielsen and Museth [2006] and the H-RLE of Houston et al. [2006]. ...
We also demonstrate that our compression techniques out-perform state-of-the-art compression algorithms for narrow bands. ...
Thanks also goes to Brian Bunch Christensen and Gunnar Johansson for commenting on early drafts of this paper. ...
doi:10.1145/1289603.1289607
fatcat:z6idsmulffcaxfavkmtthpgbza
SPGrid
2014
ACM Transactions on Graphics
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Our enabling contribution is SPGrid, a new data structure for compact storage and efficient stream processing of sparsely populated uniform Cartesian grids. ...
We show how the costliest algorithmic kernels of fluid simulation can be implemented as a composition of two kernel types: (a) stencil operations on a single sparse uniform grid, and (b) structured data ...
We propose a data structure for sparsely-populated uniform grids, as one might use for example to solve a narrow-band level set problem. ...
doi:10.1145/2661229.2661269
fatcat:w5wtaks7dbbadb5zcagog2p3sq
A geometry optimization framework for photonic crystal design
2012
Photonics and Nanostructures - Fundamentals and Applications
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As an illustration, we apply this technology to the design of a two-dimensional photonic crystal structure; the result features a large complete band gap structure and a topology that is different from ...
We also consider a methodology for assessing the robustness of the optima generated through this process, investigating the impact of manufacturing errors on their performance. ...
(TM) cavity mode, a wide separation of high-and lowfrequency bands, sharp density of state band edges, flat bands, extremely large (or narrow and clearly defined) gap-to-midgap frequency ratios, identical ...
doi:10.1016/j.photonics.2011.06.005
fatcat:f35ppdfhevgijiisx2h45dneni
An efficient, scalable, and adaptable framework for solving generic systems of level-set PDEs
2013
Frontiers in Neuroinformatics
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Jim Miller (GE USA), for comments on the level-set design. We thank Dr. ...
Sparse methods visit only the narrow band layers while the dense method visits every pixel in the level-set domain. ...
The sparse representation (also sometimes called as narrow-band) discretizes the level-set function only around the zero level-curve. ...
doi:10.3389/fninf.2013.00035
pmid:24501592
pmcid:PMC3872740
fatcat:dkqoocauunbw7ohuw56buvlmge
The Design of Shared Aperture Antennas Consisting of Differently Sized Elements
2006
IEEE Transactions on Antennas and Propagation
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The sparse architectures are designed using a combinatorial method that ensures an acceptable behavior in the side-lobes region in conjunction with a narrow beamwidth. ...
interleaved on a common (shared) aperture. ...
From that behavior, it can be derived that two bands [GHz] and [GHz] (separated by a narrow gap of 0.2 GHz) are obtained for a voltage standing wave ratio . ...
doi:10.1109/tap.2005.863382
fatcat:22odnaxxcnd3jeivavwfcnr7mu
Level set formulation of two-dimensional Lagrangian vortex detection methods
2016
Chaos
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2016 pre-print arXiv:1610.01589v1 fatcat:7kxvbbsy7vfebj34fceswb7u5e
Our level-set formulation captures an a priori unknown number of vortices simultaneously at relatively low computational cost. ...
The second energy function is derived for a graph-based approach to vortex boundary detection [Hadjighasem et al., Phys. Rev. E 93, 063107 (2016)]. ...
ACKNOWLEDGEMENTS The authors would like to thank Mattia Serra and David Oettinger for helpful discussions on the subject of this paper. ...
doi:10.1063/1.4964103
pmid:27802672
fatcat:gk7kfc62unexjndoufsls3mxt4
For the Grid and Through the Grid: The Role of Power Line Communications in the Smart Grid
2011
Proceedings of the IEEE
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Finally, this paper reports recent studies on the electrical and topological properties of a sample power distribution network. ...
We then address Smart Grid applications as instances of sensor networking and network control problems and discuss the main conclusions one can draw from the literature on these subjects. ...
like to express their gratitude to John Boot (General Electric), Anand Dabak (Texas Instruments), Mischa Schwartz (Columbia University), and Gary Stuebing (Duke Energy) for many stimulating discussions on ...
doi:10.1109/jproc.2011.2109670
fatcat:l7doso7v25f5vbnxmkuzhtdcuu
A Bayesian Approach to Sparse Model Selection in Statistical Shape Models
2015
SIAM Journal of Imaging Sciences
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When the number of points on the sets varies across the population, each point set is often regarded as a spatially transformed Gaussian mixture model (GMM) sample, and the registration problem is formulated ...
We propose an EM framework, adopting a symmetric Dirichlet distribution as a prior, to enforce sparsity on the mixture weights of Gaussians. ...
in the narrow bands. ...
doi:10.1137/140982039
fatcat:hsn7mqoxsjdaxnnndjdubhdxxq
For the Grid and Through the Grid: The Role of Power Line Communications in the Smart Grid
[article]
2011
arXiv
pre-print
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Finally, this paper reports recent studies on the electrical and topological properties of a sample power distribution network. ...
Power grid topological studies are very important for PLC networking as the power grid is not only the information source but also the information delivery system - a unique feature when PLC is used for ...
like to express their gratitude to John Boot (General Electric), Anand Dabak (Texas Instruments), Mischa Schwartz (Columbia University), and Gary Stuebing (Duke Energy) for many stimulating discussions on ...
arXiv:1010.1973v2
fatcat:myw3py2peng5hlaqeckb2ltkdm
Staying alive: Dalmatian mediated blocking of apoptosis is essential for tissue maintenance
2010
Developmental Dynamics
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Acknowledgements The authors would like to acknowledge helpful discussions with Ben Mitchinson, Tom Stafford, Jim Stone, and Mat Evans (University of Sheffield), and comments on a previous draft from Paul ...
What are the implications of taking a topological map with a set of connections that result from optimizing a narrow target distribution, and then moving every neuron to a random location on the cortical ...
., why should evolution have optimized for a narrow target connectivity distribution? ...
doi:10.1002/dvdy.22281
pmid:20503358
pmcid:PMC3086122
fatcat:a3e4lujxhjc3fkbbo5ylcjbo4u
Multi-LiDAR Mapping for Scene Segmentation in Indoor Environments for Mobile Robots
2022
Sensors
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First, a scan matching algorithm based on ICP with distance threshold association counter is used as a multi-objective-like fitness function. ...
Then, with Harmony Search, results are optimized without any previous initial guess or odometry. ...
For 3D maps and full 6DOF, the band has six musicians, one for each variable in p, searching an optimal location for all six variables at the same time. ...
doi:10.3390/s22103690
fatcat:uyoglpviqbfnjpgirqdqca5lnq
VSP—a quantum-electronic simulation framework
2013
Journal of Computational Electronics
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A layered software design allows VSP's existing components such as models and solvers to be combined in a multitude of ways, and new components to be added easily. ...
It is an extensive software tool that includes models for band structure calculation, self-consistent carrier concentrations including strain, mobility, and transport in transistors and heterostructure ...
Acknowledgements This work has been supported by the Austrian Science Fund program F025 (IR-ON), and the Austrian Research Promotion Agency, project 838551 (NeGFQTS). ...
doi:10.1007/s10825-013-0535-y
fatcat:cgaco3p53rgrphmmagsk53ufki
Semiconductor-ferromagnet-superconductor planar heterostructures for 1D topological superconductivity
[article]
2022
arXiv
pre-print
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Our proposal provides a magnetic field-free planar design for quasi-one-dimensional topological superconductivity with attractive properties for experimental control and scalability. ...
gap that can reach half of the SC one. ...
Hence, its precise value may affect the topological properties of the wire as well as the optimal FI thickness to have a topological phase. ...
arXiv:2203.06644v1
fatcat:vrbtfddpebgnnlq7mbs5fgqijq
What, if anything, are topological maps for?
2015
Developmental Neurobiology
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The paper is intended as a non>technical introduction to the assumptions and predictions of these four important classes of models, along with other possible functional explanations for maps. topological ...
We argue that i) self>organizing maps yield spatial patterning only as a byproduct of efficient mechanisms for developing environmentally appropriate distributions of feature preferences, ii) wiring optimization ...
The authors would like to acknowledge helpful discussions with Ben Mitchinson, Tom Stafford, Jim Stone, and Mat Evans (University of Sheffield), and comments on a previous draft from Paul Wilson (University ...
doi:10.1002/dneu.22281
pmid:25683193
fatcat:b4wjyrifufdjvfdw7hiw5wzr4y
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