Results 41 to 50 of about 1,005 (207)

Evaluation of the performance of ChatGPT‐4 and ChatGPT‐4o as a learning tool in endodontics

open access: yesInternational Endodontic Journal, Volume 59, Issue 6, Page 1057-1069, June 2026.
Abstract Aims The aim of this study was to evaluate the accuracy and consistency of responses given by two different versions of Chat Generative Pre‐trained Transformer (ChatGPT), ChatGPT‐4, and ChatGPT‐4o, to multiple‐choice questions prepared from undergraduate endodontic education topics at different times of the day and on different days ...
Esra Arılı Öztürk   +2 more
wiley   +1 more source

Pseudoelasticity in High Strengthening Fcc Single Crystals

open access: yes, 1996
It was experimentally shown that the achievement of a high deforming stress level due to dispersion hardening and solid solution strengthening of FCC single crystals with a low stacking-fault energy leads to the deformation mechanism changing from slip ...
I. V. Kireeva   +3 more
core   +1 more source

On modelling of the one dimensional pseudoelastic effect of shape memory alloys

open access: yesMechanics & Industry
Last decades, a qualitative leap in materials engineering was observed, through developing new materials or discovering new properties. The shape memory alloys are a group of materials exhibiting singular behaviour under a coupled thermomechanical ...
Zidane Imade, Meddour Belkacem
doaj   +1 more source

Numerical Investigation of a Dual‐Mode Shape Memory Alloy Stent Enabling Secondary Expansion via Focused Ultrasound: A Potential Strategy for Correcting In‐Stent Restenosis

open access: yesAdvanced Engineering Materials, Volume 28, Issue 6, 18 March 2026.
This study demonstrates a novel noninvasive strategy to treat in‐stent restenosis using focused ultrasound. A shape memory alloy stent initially expands at body temperature. If restenosis occurs, targeted ultrasound heating thermally actuates the stent, enabling a secondary expansion to reopen the blocked vessel, offering a potential alternative to ...
Stephen Asare   +3 more
wiley   +1 more source

The Investigation of a Shape Memory Alloy Micro-Damper for MEMS Applications

open access: yesSensors, 2007
Some shape memory alloys like NiTi show noticeable high damping property inpseudoelastic range. Due to its unique characteristics, a NiTi alloy is commonly used forpassive damping applications, in which the energy may be dissipated by the conversion ...
Chongdu Cho, Qiang Pan
doaj   +1 more source

Recent Advances in Variable‐Stiffness Robotic Systems Enabled by Phase‐Change Materials

open access: yesAdvanced Robotics Research, Volume 2, Issue 1, February 2026.
Phase‐change materials (PCMs), such as shape memory alloys, hydrogels, shape memory polymers, liquid crystal elastomers, and low‐melting‐point alloys, are driving advancements in stiffness‐tunable robotic systems across a wide range of applications. This review highlights recent progress in PCM‐enabled robotics, focusing on their underlying mechanisms,
Sukrit Gaira   +5 more
wiley   +1 more source

Pseudoelasticity and Transformation Features of some NiTi Orthodontic Commercial Wires

open access: yes, 2014
Premartensitic and martensitic phase transitions have been investigated between -20 and +60 °C in two types of NiTi orthodontic wires subjected to constant bending strains.
S. Ceresara   +8 more
core   +1 more source

Experiments on deformation behaviour of functionally graded NiTi structures

open access: yesData in Brief, 2017
Functionally graded NiTi structures benefit from the combination of the smart properties of NiTi and those of functionally graded structures. This article provides experimental data for thermomechanical deformation behaviour of microstructurally graded ...
Bashir S. Shariat   +10 more
doaj   +1 more source

Biomechanical Phenotyping Reveals Unique Mechanobiological Signatures of Early‐Onset Colorectal Cancer

open access: yesAdvanced Science, Volume 13, Issue 6, 30 January 2026.
This study identifies a unique physical signature of colorectal cancer in younger adults: their tissues are mechanically stiffer than those in older patients with the same cancer. Furthermore, stromal remodeling in early‐onset colorectal cancer promotes epithelial mechanotransduction and proliferation, showing how mechanical alterations in the tissue ...
Nicole C. Huning   +18 more
wiley   +1 more source

Experimental study temperature evolution of pseudoelastic TiNi alloys during shock-induced phase transformation

open access: yesArchives of Mechanics, 2018
The temperature evolution and the mechanical characteristics of pseudoelasticity TiNi alloys have been studied experimentally at different strain rates.
L. Shen, Y. Liu, J. Shan
doaj   +1 more source

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