Results 11 to 20 of about 437,924 (289)

Shape Analysis of Elastic Curves in Euclidean Spaces [PDF]

open access: yesIEEE Transactions on Pattern Analysis and Machine Intelligence, 2011
This paper introduces a square-root velocity (SRV) representation for analyzing shapes of curves in euclidean spaces under an elastic metric. In this SRV representation, the elastic metric simplifies to the IL(2) metric, the reparameterization group acts by isometries, and the space of unit length curves becomes the unit sphere.
Srivastava, A.   +3 more
openaire   +5 more sources

Analysis of shape data: From landmarks to elastic curves. [PDF]

open access: yesWiley Interdiscip Rev Comput Stat, 2020
Bharath K, Kurtek S.
europepmc   +2 more sources

How a Curved Elastic Strip Opens [PDF]

open access: yesPhysical Review Letters, 2014
An elastic strip is transversely clamped in a curved frame. The induced curvature decreases as the strip opens and connects to its flat natural shape. Various ribbon profiles are measured and the scaling law for the opening length validates a description where the in-plane stretching gradually relaxes the bending stress.
Barois, Thomas   +3 more
openaire   +4 more sources

Elastic Sturmian spirals in the Lorentz-Minkowski plane

open access: yesOpen Mathematics, 2016
In this paper we consider some elastic spacelike and timelike curves in the Lorentz-Minkowski plane and obtain the respective vectorial equations of their position vectors in explicit analytical form.
Uçum Ali   +2 more
doaj   +1 more source

Morphological analysis of cells by means of an elastic metric in the shape space [PDF]

open access: yes, 2020
Shape analysis is of great importance in many fields, such as computer vision, medical imaging, and computational biology. This analysis can be performed considering shapes as closed planar curves in the shape space.
Epifanio, Irene   +2 more
core   +1 more source

Laser Ultrasound Investigations of AlScN(0001) and AlScN(11-20) Thin Films Prepared by Magnetron Sputter Epitaxy on Sapphire Substrates

open access: yesMicromachines, 2022
The laser ultrasound (LU) technique has been used to determine dispersion curves for surface acoustic waves (SAW) propagating in AlScN/Al2O3 systems.
Elena A. Mayer   +7 more
doaj   +1 more source

On the new approach for the energy of elastica

open access: yesActa Scientiarum: Technology, 2018
In this work, we firstly describe conditions for being elastica in Minkowski space E41. Then we investigate the energy of the elastic curves and exploit its relationship with the energy of Bishop vectors belong to that elastic curves E41.
Talat Körpınar, Rıdvan Cem Demirkol
doaj   +1 more source

Axial Compression Behaviour and Modelling of Pultruded Basalt-Fibre-Reinforced Polymer (BFRP) Tubes

open access: yesBuildings, 2023
Laminated fibre-reinforced polymer (FRP) tubes are increasingly used as compression members in large-span spatial structures due to their high bearing capacity, corrosion resistance, and superior stability compared to high-strength steel pipes.
Chuntao Zhang, Yu Chen, Mei Dou
doaj   +1 more source

Nonlocal Elasticity Response of Doubly-Curved Nanoshells [PDF]

open access: yesSymmetry, 2020
In this paper, we focus on the bending behavior of isotropic doubly-curved nanoshells based on a high-order shear deformation theory, whose shape functions are selected as an accurate combination of exponential and trigonometric functions instead of the classical polynomial functions.
Mohammad Hassan Dindarloo   +3 more
openaire   +3 more sources

Elastic strips [PDF]

open access: yes, 2010
Motivated by the problem of finding an explicit description of a developable narrow Moebius strip of minimal bending energy, which was first formulated by M. Sadowsky in 1930, we will develop the theory of elastic strips. Recently E.L.
Chubelaschwili, David, Pinkall, Ulrich
core   +1 more source

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