A Hexagonal Nut-Like Metal-Organic Framework and Its Conformal Transformation.
Sign Up to like & getrecommendations! Published in 2022 at "Small"
DOI: 10.1002/smll.202203356
Abstract: Hollow structured metal-organic frameworks (MOFs) and their derivatives are desired in catalysis, energy storage, etc. However, fabrication of novel hollow MOFs and revelation of their formation mechanisms remain challenging. Herein, open hollow 2D MOFs in… read more here.
Keywords: mofs; hollow; conformal transformation; open hollow ... See more keywords
Wide-Angle Ceramic Retroreflective Luneburg Lens based on Quasi-Conformal Transformation Optics for mm-Wave Indoor Localization
Sign Up to like & getrecommendations! Published in 2022 at "IEEE Access"
DOI: 10.1109/access.2022.3166509
Abstract: This paper presents a quasi-conformal transformation optics (QCTO) based three-dimensional (3D) retroreflective flattened Luneburg lens for wide-angle millimeter-wave radio-frequency indoor localization. The maximum detection angle and radar cross-section (RCS) are investigated, including an impedance matching… read more here.
Keywords: transformation optics; conformal transformation; optics; wide angle ... See more keywords
Learning the Conformal Transformation Kernel for Image Recognition
Sign Up to like & getrecommendations! Published in 2017 at "IEEE Transactions on Neural Networks and Learning Systems"
DOI: 10.1109/tnnls.2015.2504538
Abstract: In this paper, we present a multiclass data classifier, denoted by optimal conformal transformation kernel (OCTK), based on learning a specific kernel model, the CTK, and utilize it in two types of image recognition tasks,… read more here.
Keywords: recognition; transformation kernel; conformal transformation; geometry ... See more keywords
Conformal optical devices based on geodesic lenses.
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DOI: 10.1364/oe.27.028722
Abstract: Conformal transformation optics provides a simple scheme for manipulating light rays with inhomogeneous isotropic dielectrics. However, there is usually discontinuity for refractive index profile at branch cuts of different virtual Riemann sheets, hence compromising the… read more here.
Keywords: conformal optical; transformation optics; geodesic lenses; optics ... See more keywords
A conformal transformation approach to wide-angle illusion device and absorber
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DOI: 10.1515/nanoph-2020-0006
Abstract: Abstract We theoretically investigate the illusion device designed by a conformal transformation that can render an elliptic defect behave like a flat mirror. Different from illusion devices consisting of the complementary medium and anti-object with… read more here.
Keywords: illusion; conformal transformation; illusion device; device absorber ... See more keywords
Some Properties of the χ-Curvature under Conformal Transformation
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DOI: 10.3390/math11081941
Abstract: In this paper, we identify the sufficient and necessary conditions for conformally related Randers metrics to have the same χ-curvature. Further, if s0=0 holds, we conclude that the conformal transformation must be a homothety. Using… read more here.
Keywords: conformal transformation; properties curvature; curvature conformal; transformation ... See more keywords