Results 21 to 30 of about 3,008,618 (361)

Numerical Solution of Differential Equations of Elastic Curves in 3-dimensional Anti-de Sitter Space [PDF]

open access: yesSahand Communications in Mathematical Analysis, 2023
In this paper, we aim to extend the Darboux frame field into 3-dimensional Anti-de Sitter space and obtain two cases for this extension by considering a parameterized curve on a hypersurface; then we carry out the Euler-Lagrange equations and derive ...
Samira Latifi   +2 more
doaj   +1 more source

Geometric and topological approaches to shape variation in Ginkgo leaves

open access: yesRoyal Society Open Science, 2021
Leaf shape is a key plant trait that varies enormously. The range of applications for data on this trait requires frequent methodological development so that researchers have an up-to-date toolkit with which to quantify leaf shape. We generated a dataset
Haibin Hang   +3 more
doaj   +1 more source

Planning rigid body motions using elastic curves [PDF]

open access: greenMath. Control. Signals Syst., 2008
James Biggs, William Holderbaum
openalex   +2 more sources

Rolling Geodesics, Mechanical Systems and Elastic Curves

open access: yesMathematics, 2022
This paper defines a large class of differentiable manifolds that house two distinct optimal problems called affine-quadratic and rolling problem.
Velimir Jurdjevic
doaj   +1 more source

Elastic analysis of irregularly or sparsely sampled curves [PDF]

open access: yesBiometrics, 2021
We provide statistical analysis methods for samples of curves in two or more dimensions, where the image, but not the parameterization of the curves, is of interest and suitable alignment/registration is thus necessary.
Lisa Steyer, Almond Stöcker, S. Greven
semanticscholar   +1 more source

Uniform fatigue damage tolerance assessment for additively manufactured and cast Al-Si alloys: size and mean stress effects

open access: yesAdditive Manufacturing Letters, 2022
The near-net-shape manufacturing in additive manufactured and cast of Al-Si alloys results in a heterogeneous solidification and cooling of the parts, leading to significant gradients in microstructural and defect features as well as deformation behavior.
Jochen Tenkamp   +3 more
doaj   +1 more source

Evolution characteristics of elastic energy storage of marble under creep loading

open access: yes矿业科学学报, 2022
In order to study the energy absorption and transformation characteristics of marble, the release of strain energy and dissipation mechanism during creep process, this paper tested the stress-strain relationship of marble under uniaxial cyclic loading ...
Li Dongyang   +4 more
doaj   +1 more source

A Property of Euler's Elastic Curve [PDF]

open access: yesElemente der Mathematik, 2000
Euler and Legendre found formulas for certain products of elliptic integrals. Legendre's proof is sketched, and Euler's method is generalized to prove a more general formula which may be interpreted as a property of a curve generalizing Euler's elastic curve.
Judith L. Nowalsky   +3 more
openaire   +3 more sources

Weak elastic energy of irregular curves

open access: yesPhilosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences, 2023
A weak notion of elastic energy for (not necessarily regular) rectifiable curves in any space dimension is proposed. Ourp-energy is defined through a relaxation process, where a suitablep-rotation of inscribed polygons is adopted. The discretep-rotation we choose has a geometric flavour: a polygon is viewed as an approximation to a smooth curve, and ...
D. Mucci, A. Saracco
openaire   +4 more sources

Black rubber and the non-linear elastic response of scale invariant solids

open access: yesJournal of High Energy Physics, 2020
We discuss the nonlinear elastic response in scale invariant solids. Following previous work, we split the analysis into two basic options: according to whether scale invariance (SI) is a manifest or a spontaneously broken symmetry.
Matteo Baggioli   +2 more
doaj   +1 more source

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