Results 1 to 10 of about 336,617 (266)
Mechanism of Antioxidant Activity of Betanin, Betanidin and Respective C15-Epimers via Shape Theory, Molecular Dynamics, Density Functional Theory and Infrared Spectroscopy [PDF]
Molecules, 2022 Betanin and betanidin are compounds with extensive interest; they are effectively free radical scavengers. The present work aims to elucidate the differences between the mechanism of the antioxidant activity of betanin, betanidin, and their respective ...
Iliana María Ramirez-Velasquez +3 more
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Multivariate Aspects of Shape Theory
Annals of Statistics, 1993 Let \({\mathbf X}: N\times K\) be a matrix presenting the geometrical figure comprising \(N\) landmark, or labeled, points in \(R^ k\). The shape of \({\mathbf X}\) is the figure with translation, orientation and scale removed. The authors placed shape theory in the setting of noncentral multivariable analysis and provided a comprehensive view of shape
Kanti Mardia
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IMAGE AND SHAPE COMPARISON VIA MORPHOLOGICAL CORRELATION [PDF]
The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2021 A lot of image matching applications require image comparison to be invariant relative to intensity values variations. The Pyt’ev theory for Morphological Image Analysis (MIA) was developed based on image-to-shape matching with mosaic shape models ...
Y. V. Vizilter +2 more
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Shape Shifting: Toward a Theory of Racial Change
Genealogy, 2022 We are accustomed to thinking of identities—racial, ethnic, often religious—as if they were permanent, unalterable features of individuals and groups.
Paul Spickard
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Shape grammar in contemporary architectural theory and design [PDF]
Facta Universitatis. Series: Architecture and Civil Engineering, 2012 In the past decade, digital technologies had a great impact on contemporary architectural practice, design and theory. CAD/CAM technologies opened up new opportunities by allowing design and production of complex geometric shapes.
Tepavčević Bojan, Stojaković Vesna
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Design and generation of structured array beams with shape-invariant properties
New Journal of Physics, 2023 We theoretically propose and experimentally demonstrate a flexible approach to generate an arbitrary shape-invariant structured array beam during propagation with the prescribed intensity distribution.
Yuqiu Zhang +7 more
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Journal of Mathematical Sciences, 2021 Shape theory was founded by K.~Borsuk 50 years ago. In essence, this is spectral homotopy theory; it occupies an important place in geometric topology. The article presents the basic concepts and the most important, in our opinion, results of shape theory.
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Microscopic origin of shape coexistence in the N=90, Z=64 region
Physics Letters B, 2022 A microscopic explanation of the nature of shape coexistence in the N=90, Z=64 region is suggested, based on calculations of single particle energies through standard covariant density functional theory. It is suggested that shape coexistence in the N=90
Dennis Bonatsos +4 more
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Theory of Shape-Shifting Droplets [PDF]
Physical Review Letters, 2017 Recent studies of cooled oil emulsion droplets uncovered transformations into a host of flattened shapes with straight edges and sharp corners, driven by a partial phase transition of the bulk liquid phase. Here, we explore theoretically the simplest geometric competition between this phase transition and surface tension in planar polygons, and recover
Haas, Pierre A. +4 more
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In Vision It Is Groups, Rather Than Maps, That Determine How We Perceive the World
Vision, 2022 This paper presents the results of a study that used a speeded counting task to adjudicate between two competing theories of how perceptual representations of visual objects are derived.
Philip T. Quinlan +2 more
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