Results 31 to 40 of about 663,677 (295)

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

Getting DNA twist rigidity from single molecule experiments [PDF]

open access: yes, 2004
We use an elastic rod model with contact to study the extension versus rotation diagrams of single supercoiled DNA molecules. We reproduce quantitatively the supercoiling response of overtwisted DNA and, using experimental data, we get an estimation of ...
A. V. Vologodskii   +10 more
core   +3 more sources

Peculiarities of Biomechanical Properties of Ocular Tissue in Keratoconus

open access: yesGalician Medical Journal, 2016
Considerable achievements having been recently made in modern diagnostics and treatment of keratoconus have not diminished the urgency of the given problem as the traditional views of the pathogenesis of keratoconus do not always allow to struggle ...
Iryna Shargorodska
doaj   +1 more source

On the work of Rodriguez Hertz on rigidity in dynamics

open access: yes, 2016
This paper is a survey about recent progress in measure rigidity and global rigidity of Anosov actions, and celebrates the profound contributions by Federico Rodriguez Hertz to rigidity in dynamical ...
Spatzier, Ralf
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

First-order rigidity transition on Bethe Lattices

open access: yes, 1997
Tree models for rigidity percolation are introduced and solved. A probability vector describes the propagation of rigidity outward from a rigid border.
Duxbury, Phillip M.   +2 more
core   +1 more source

Simulation models of vibrations at holes boring factored in the technological system’s variable rigidity

open access: yesTrudy Odesskogo Politehničeskogo Universiteta, 2014
At elongated holes boring several imperfections can occur, namely, the surface waviness and shape inaccuracies in the axial section. This research purpose is to establish the regularities of such imperfections formation depending on the technological ...
Boris О. Tkachenko, Аnna V. Balaniuk
doaj   +1 more source

Torsional vibration analysis of the surface‐mounted permanent magnet synchronous machine using analytical model considering flux harmonics

open access: yesIET Electric Power Applications, 2021
The torsional vibration of the surface‐mounted permanent magnet synchronous machine (SPMSM) caused by torque ripple is analysed herein. First, an improved mathematic model of the SPMSM accounting for torsional vibration effect is proposed, which is ...
Jie Ren   +3 more
doaj   +1 more source

Infinitesimal rigidity of convex surfaces through the second derivative of the Hilbert-Einstein functional II: Smooth case [PDF]

open access: yes, 2011
The paper is centered around a new proof of the infinitesimal rigidity of smooth closed surfaces with everywhere positive Gauss curvature. We use a reformulation that replaces deformation of an embedding by deformation of the metric inside the body ...
I Polyhedral Case, Ivan Izmestiev
core  

Feasibility and Safety of High‐Dose Proton Re‐Irradiation in Recurrent Pediatric Central Nervous System Tumors: A Single‐Institution Retrospective Study

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Purpose Pediatric central nervous system (CNS) tumors often recur despite multimodality therapy. Although re‐irradiation (re‐RT) has historically been limited by concerns for severe late toxicities, modern techniques have renewed interest in this approach. Proton therapy provides dosimetric advantages that may enable curative re‐treatment with
Jin‐Ho Song   +15 more
wiley   +1 more source

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