Results 51 to 60 of about 1,484,571 (231)

Using a Y-Shaped Artificial Ligament for Posterolateral Corner Reconstruction in Multiligament Knee Injuries: A Surgical Technique. [PDF]

open access: yesArthrosc Tech
Abstract In multiligament knee injuries, reconstruction of the posterolateral corner is essential for restoring varus and rotational stability of the knee. Autografts and allografts are the current mainstays for posterolateral corner reconstruction; however, their use is associated with inherent limitations, including graft availability, insufficient ...
Zhou H, Xue Z, Wang D, Xu S, Zhang J.
europepmc   +2 more sources

A Transnasal Endoscope for Robotically Assisted Gastroscopy

open access: yesAdvanced Robotics Research, EarlyView.
This work introduces a 4.25 mm diameter magnetically navigated transnasal endoscope for upper gastrointestinal (GI) screening and intervention. The system enables precise remote steering throughout the upper GI tract and is demonstrated through in vitro and in vivo experiments, including the robotic execution of preprogrammed retroflexions, trans ...
Alexandre Mesot   +6 more
wiley   +1 more source

Algebraic reflexivity of isometry groups and automorphism groups of some operator structures [PDF]

open access: yes, 2013
We establish the algebraic re exivity of three isometry groups of operator structures: The group of all surjective isometries on the unitary group, the group of all surjective isometries on the set of all positive invertible operators equipped with ...
Botelho, Fernanda   +2 more
core  

Efficient computation of isometry-invariant distances between surfaces [PDF]

open access: yes, 2006
. We present an efficient computational framework for isometry-invariant comparison of smooth surfaces. We formulate the Gromov–Hausdorff distance as a multidimensional scaling– like continuous optimization problem.
Michael M. Bronstein   +2 more
core   +1 more source

From Folding Mechanics to Robotic Function: A Unified Modeling Framework for Compliant Origami

open access: yesAdvanced Science, EarlyView.
A geometry‐consistent DDG framework captures compliant origami deformation from rigid‐like folding to soft panel bending. By tuning crease and panel stiffness, bistable snap‐through responses transform into smooth monostable deformation, enabling programmable stability and robot‐scale locomotion.
Bohan Zhang   +7 more
wiley   +1 more source

Multispectral UV Imaging on Capacitive CMOS Arrays Enabled by Solution‐Processed Metal‐Oxide Nanoparticles

open access: yesAdvanced Science, EarlyView.
Ultraviolet (UV) imagers are important for a variety of applications but often require dedicated semiconductor process flows. Here, a versatile capacitive CMOS platform is transformed into a visible‐blind, multispectral UV imager through post‐CMOS functionalization with solution‐processed metal‐oxide nanoparticles. The UV‐induced photodielectric effect
Suman Kundu   +5 more
wiley   +1 more source

Perceived Time Shapes Physical Fatigue Accumulation and Its Neural Oscillatory Correlates

open access: yesAdvanced Science, EarlyView.
Can a clock change the course of physical fatigue? By covertly manipulating the clock calibration during repeated isometric contractions, we showed that perceived time shapes fatigue accumulation and frontal oscillatory dynamics. While fatigue accumulation was only reduced when the clock was slowed down, frontal oscillatory dynamics followed perceived ...
Pierre‐Marie Matta   +3 more
wiley   +1 more source

Discrete 2D Material Programming for 3D Shaping and Morphogenesis‐Inspired 4D Bioprinting

open access: yesAdvanced Science, EarlyView.
Cell‐compatible discrete 2D material programming enables 2‐to‐3D shape transformation and morphogenesis‐inspired 4D bioprinting. By patterning cell‐supportive microdomains within a responsive hydrogel, the approach programs in‐plane growth to encode target metrics.
Fereshteh Family   +3 more
wiley   +1 more source

PARTIAL ISOMETRIES OF A SUB-RIEMANNIAN MANIFOLD

open access: yes, 2012
In this article, we obtain the following generalization of isometric C1-immersion theorem of Nash and Kuiper. Let M be a smooth manifold of dimension m and H a rank k subbundle of the tangent bundle TM with a Riemannian metric gH.
MAHUYA DATTA
core   +1 more source

Non-Parametric 3D Shape Warping [PDF]

open access: yes, 2010
A method is presented for non-rigid alignment of a source shape to a target shape through estimating and interpolating point-wise correspondences between their surfaces given as point clouds.
U. Hillenbrand, U., Ulrich Hillenbrand
core   +1 more source

Home - About - Disclaimer - Privacy