Articles with "polygon" as a keyword



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Numerical Modelling of Ice‐Wedge Polygon Geomorphic Transition

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Published in 2017 at "Permafrost and Periglacial Processes"

DOI: 10.1002/ppp.1909

Abstract: A numerical model is presented to test whether a hillslope diffusion approach can simulate the topographic evolution of some recently developed high-centred ice-wedge polygons south of Prudhoe Bay, Alaska. The polygons are adjacent to a… read more here.

Keywords: high centred; transition; polygon; ice wedge ... See more keywords
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From a Random Polygon in $$\mathbb {R}^m$$Rm to an Ellipse: A Fourier Analysis of Iterated Circular Convolutions

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Published in 2017 at "International Journal of Applied and Computational Mathematics"

DOI: 10.1007/s40819-017-0320-x

Abstract: We consider random, skew, N-gons in $$\mathbb {R}^m$$Rm, having zero centroids. We investigate a normalized, midpoint averaging transformation, repeatedly applied to the original polygon, which we identify with a normalized circular convolution modulo N. The… read more here.

Keywords: polygon; ellipse; circular convolutions; case ... See more keywords
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Plasma-assisted filling electron beam lithography for high throughput patterning of large area closed polygon nanostructures.

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Published in 2020 at "Nanoscale"

DOI: 10.1039/d0nr01032d

Abstract: Electron-beam lithography is widely applied in nanofabrication due to its high resolution. However, it suffers from low throughput due to its patterning process. All the pixels within a pattern's boundary are needed to be scanned… read more here.

Keywords: polygon; beam lithography; lithography; electron beam ... See more keywords
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Late Holocene ice-wedge polygon dynamics in northeastern Siberian coastal lowlands

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Published in 2018 at "Arctic, Antarctic, and Alpine Research"

DOI: 10.1080/15230430.2018.1462595

Abstract: ABSTRACT Ice-wedge polygons are common features of northeastern Siberian lowland periglacial tundra landscapes. To deduce the formation and alternation of ice-wedge polygons in the Kolyma Delta and in the Indigirka Lowland, we studied shallow cores,… read more here.

Keywords: polygon; ice wedge; late holocene; northeastern siberian ... See more keywords
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Robotic Dispersal Technique for 35 GBq of 140La in an L-polygon Pattern.

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Published in 2019 at "Health Physics"

DOI: 10.1097/hp.0000000000001158

Abstract: In 2018, Defence Research and Development Canada, in partnership with Natural Resources Canada, led a field trial of survey and mapping of a large dispersion of radioactivity using Unmanned Aerial Vehicles (UAVs). The intent was… read more here.

Keywords: disperse material; technique gbq; dispersal technique; polygon ... See more keywords
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Regular Polygon Formations With Fixed Size and Cyclic Sensing Constraint

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Published in 2019 at "IEEE Transactions on Automatic Control"

DOI: 10.1109/tac.2019.2913701

Abstract: We propose a distributed control strategy for a team of agents to autonomously achieve a regular polygon formation with a desired size. Our strategy does not require global position measurements, common sense of orientation, or… read more here.

Keywords: formations fixed; control; polygon; polygon formations ... See more keywords
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Adaptive Polygon Generation Algorithm for Automatic Building Extraction

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Published in 2022 at "IEEE Transactions on Geoscience and Remote Sensing"

DOI: 10.1109/tgrs.2021.3081582

Abstract: Buildings serve as the main places of human activities, and it is essential to automatically extract each building instance for a wide range of applications. Recently, automatic building segmentation approaches have made great progress in… read more here.

Keywords: generation algorithm; polygon; adaptive polygon; building ... See more keywords
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A Semi-Fragile Reversible Watermarking for Authenticating 3D Models Based on Virtual Polygon Projection and Double Modulation Strategy

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Published in 2023 at "IEEE Transactions on Multimedia"

DOI: 10.1109/tmm.2021.3134159

Abstract: Aiming to reduce the embedding distortion and improve tampering location precision of reversible watermarking for authenticating three-dimensional(3D) models, a semi-fragile reversible watermarking based on virtual polygon projection and double modulation strategy is proposed. During the… read more here.

Keywords: virtual polygon; polygon; projection; reversible watermarking ... See more keywords
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LOOPS: LOcally Optimized Polygon Simplification

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Published in 2022 at "Computer Graphics Forum"

DOI: 10.1111/cgf.14546

Abstract: Displaying polygonal vector data is essential in various application scenarios such as geometry visualization, vector graphics rendering, CAD drawing and in particular geographic, or cartographic visualization. Dealing with static polygonal datasets that has a large… read more here.

Keywords: polygon; visualization; locally optimized; large scale ... See more keywords
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Seamless Parametrization with Cone and Partial Loop Control

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Published in 2023 at "ACM Transactions on Graphics"

DOI: 10.1145/3600087

Abstract: We present a method for constructing seamless parametrization for surfaces of any genus, which can handle any feasible cone configuration with any type of cones. The mapping is guaranteed to be locally injective, which is… read more here.

Keywords: polygon; parametrization cone; parametrization; cone partial ... See more keywords
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Research on polygon suppression of resilient wheels under multiple operating conditions

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Published in 2023 at "Proceedings of the Institution of Mechanical Engineers, Part K: Journal of Multi-body Dynamics"

DOI: 10.1177/14644193231164214

Abstract: The polygon effect seriously affects the running stability and safety of the vehicle. In order to suppress the wheel polygon, a dynamic model is established that can calculate the force on the resilient wheel's rim… read more here.

Keywords: polygon; wheel polygon; wheel; suppression ... See more keywords