Results 21 to 30 of about 548,039 (242)

Complexity of linear circuits and geometry [PDF]

open access: yes, 2015
We use algebraic geometry to study matrix rigidity, and more generally, the complexity of computing a matrix-vector product, continuing a study initiated by Kumar, et. al.
Gesmundo, Fulvio   +3 more
core   +1 more source

A Unified Dissertation on Bearing Rigidity Theory

open access: yes, 2021
This work focuses on the bearing rigidity theory, namely the branch of knowledge investigating the structural properties necessary for multi-element systems to preserve the inter-units bearings when exposed to deformations. The original contributions are
Cenedese, Angelo   +2 more
core   +1 more source

Study on cross-sectional shape of outer cylinder for twist type morphing blade using double cylinder structure

open access: yesNihon Kikai Gakkai ronbunshu, 2021
Previous study has shown the effectiveness of twisted morphing wing with a double-cylinder structure. The purpose of this study was to obtain the knowledge on the appropriate cross-sectional shape of the outer cylinder in the double cylinder structure in
Yusuke ARAI, Hiroaki TANAKA
doaj   +1 more source

Lateral Buckling Analysis of the Steel-Concrete Composite Beams in Negative Moment Region

open access: yesAdvances in Materials Science and Engineering, 2015
Distortional buckling is one of the important buckling models of steel-concrete composite beam in negative moment region. Rotation restraining rigidity and lateral restraining rigidity which steel beam web to bottom plate of steel-concrete composite are ...
Fengqi Guo, Shun Zhou, Lizhong Jiang
doaj   +1 more source

Numerical analysis of torsional tangent rigidity of reinforced concrete waffle slab

open access: yesRevista IBRACON de Estruturas e Materiais, 2019
This research work deals with the analysis of torsional tangent rigidity of reinforced concrete waffle slabs by comparisons of the numerical analysis with results of experimental tests, with calculations performed using the ATENA program.
C. C. NUNES
doaj   +1 more source

Simple Riemannian surfaces are scattering rigid [PDF]

open access: yes, 2014
Scattering rigidity of a Riemannian manifold allows one to tell the metric of a manifold with boundary by looking at the directions of geodesics at the boundary.
Wen, Haomin
core   +2 more sources

Using rigidity elements to strengthen one-storey buildings frames

open access: yesMATEC Web of Conferences, 2018
The study focuses on strengthening industrial buildings frames by introducing rigidity elements. Materials concentration principle in rigidity elements in the form of reinforced concrete columns is used and the influence degree on a building frame ...
Veremeenko Oleg
doaj   +1 more source

EVALUATION OF IRIDOCILIARY AND LENTICULAR ELASTICITY USING SHEAR-WAVE ELASTOGRAPHY IN RABBIT EYES

open access: yesActa Medica, 2014
Introduction: A previous study has employed shear-wave ultrasound elastographic imaging to assess corneal rigidity in an ex-vivo porcine eye model. This study employs the same modality in vivo in a rabbit eye model in order to assess lens, ciliary body ...
Efstathios T. Detorakis   +4 more
doaj   +1 more source

Rigidity and non-rigidity results for conformal immersions

open access: yes, 2015
In this paper we show a quantitative rigidity result for the minimizer of the Willmore functional among all projective planes in $\mathbb{R}^n$ with $n\ge 4$.
Lamm, Tobias, Schätzle, Reiner M.
core   +1 more source

Using Elimination Theory to construct Rigid Matrices [PDF]

open access: yes, 2013
The rigidity of a matrix A for target rank r is the minimum number of entries of A that must be changed to ensure that the rank of the altered matrix is at most r.
Abhinav Kumar   +11 more
core   +2 more sources

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