Results 71 to 80 of about 10,815,341 (239)

Simulation‐Based Analysis of Insert Pull‐Out in Nickel‐Polyurethane Hybrid Foams Using CT‐Derived Geometries

Advanced Engineering Materials, EarlyView.
CT‐based finite element simulations combined with in situ X‐ray computed tomography are used to analyze insert pull‐out in nickel‐coated polymer foams. Despite variations in material parameters, deformation consistently concentrates within a narrow annular region around the insert.
Yannik Bautz, Jonas Fell, Hendrik Jost, Stefan Diebels, Hans‐Georg Herrmann   +4 more
wiley   +1 more source

Hybrid non-rigid image registration using mutual information and the viscous fluid algorithm\ud [PDF]

, 2002
Recently there has emerged a need to compute multimodal\ud non-rigid registrations in a lot of clinical applications. To\ud date, the viscous fluid algorithm is perhaps the most adept\ud method at recovering large local mis-registrations that exist\ud ...
Fookes, Clinton B., Bennamoun, Mohammed
core  

The Accuracy of ADC Measurements in Liver Is Improved by a Tailored and Computationally Efficient Local-Rigid Registration Algorithm.

PLoS ONE, 2015
This study describes post-processing methodologies to reduce the effects of physiological motion in measurements of apparent diffusion coefficient (ADC) in the liver.
Hossein Ragheb, Neil A Thacker, Jean-Marie Guyader, Stefan Klein, Nandita M deSouza, Alan Jackson   +5 more
doaj   +1 more source

Accuracy analysis of line-based registration for image guided neurosurgery at different operating areas – a phantom study

Computer Assisted Surgery, 2017
Space registration is the primary function of neuronavigation systems. According to the stage of the operation, the registration could be classified as rigid and non-rigid methods. Scientists have proposed three types of rigid registration methods: point-
Dafeng Ji, Yuan Dong, Manning Wang, Zhijian Song   +3 more
doaj   +1 more source

Spatially Modulated Morphotropic Phase Boundaries in a Compressively Strained Multiferroic Thin Film

Advanced Functional Materials, EarlyView.
ABSTRACT The coexisting rhombohedral‐like (R′, MA) and tetragonal‐like (T′, MC) monoclinic phases in compressively strained bismuth ferrite thin films exhibit exceptional piezoelectric and magnetic properties. While previous studies have largely focused on probing the morphotropic phase boundaries (MPBs) comprising ordered R′/T′ twins, their self ...
Ting‐Ran Liu, Xiangwei Guo, Sajid Husain, Maya Ramesh, Pushpendra Gupta, Darrell Schlom, Ramamoorthy Ramesh, Yu‐Tsun Shao   +7 more
wiley   +1 more source

A Robust and Accurate Non-rigid Medical Image Registration Algorithm Based on Multi-level Deformable Model

Iranian Journal of Public Health, 2017
Background: Compared to the rigid image registration task, the non-rigid image registration task faces much more challenges due to its high degree of freedom and inherent requirement of smoothness in the deformation field.
Yanli WAN, Hongpu HU, Yanli XU, Quan CHEN, Yan WANG, Dongping GAO   +5 more
doaj  

Bio‐Inspired Artificial Ionic Mechanoreceptor

Advanced Functional Materials, EarlyView.
A skin‐inspired artificial mechanoreceptor based on ionic interactions is presented for biomimetic tactile sensing. Pressure‐driven ionic redistribution within microfluidic channels generates a self‐powered electrical signal without external bias. The generated waveform exhibits mechanoreceptor‐like temporal features, including overshoot and undershoot,
Mohammad Akbari, Jeppe Don, Lasse A. N. Pedersen, John Noee, Rassoul Tabassian   +4 more
wiley   +1 more source

Benchmarking complete-to-partial point cloud registration techniques for laparoscopic surgery

Frontiers in Robotics and AI
ObjectiveRegistering a preoperative 3D model of an organ with its actual anatomy viewed from an intraoperative video is a fundamental challenge in computer-assisted surgery, especially for surgical augmented reality.
Alberto Neri, Alberto Neri, Veronica Penza, Nazim Haouchine, Leonardo S. Mattos   +4 more
doaj   +1 more source

Non-Rigid Multi-Modal 3D Medical Image Registration Based on Foveated Modality Independent Neighborhood Descriptor

Sensors, 2019
The non-rigid multi-modal three-dimensional (3D) medical image registration is highly challenging due to the difficulty in the construction of similarity measure and the solution of non-rigid transformation parameters.
Feng Yang, Mingyue Ding, Xuming Zhang
doaj   +1 more source

Enhanced Ferroelectric Phase Formation via Local Structure Modification in the Pre‐Crystalline State of Hafnium Zirconium Oxide Thin Films

Advanced Functional Materials, EarlyView.
Hafnium zirconium oxide thin films are grown using plasma‐enhanced atomic layer deposition with the addition of an atomic layer annealing (ALA) step. ALA leads to a change in the short‐range structure of the deposit and encourages formation of the ferroelectric Pca21 phase. The result is wake‐up‐free performance with films exposed to ALA.
Nicolas K. Lam, Gerald R. Bejger, Waseem A. Wani, Kristina M. Holsgrove, Andrew N. Titus, Niyorjyoti Sharma, Shihao Wang, Keithen Orson, Megan K. Lenox, Liron Shvilberg, Yong Kyu Choi, Ian A. Brummel, Benjamin L. Aronson, Petra Reinke, Quentin Ramasse, Amit Kumar, Brian J. Rodriguez, Christina M. Rost, Jon F. Ihlefeld   +18 more
wiley   +1 more source