Results 81 to 90 of about 497,594 (265)

Shock isolation using switchable stiffness

, 2008
This study investigates a novel stiffness control strategy applied to the problem of shock isolation. This is based on the principle that the stiffness and mass are the principal physical properties that control the passive system shock response.
Ledezma Ramirez, Diego Francisco
core   +1 more source

Control of Polarization and Polar Helicity in BiFeO3 by Epitaxial Strain and Interfacial Chemistry

Advanced Functional Materials, EarlyView.
In BiFeO3 thin films, the interplay of interfacial chemistry, electrostatics, and epitaxial strain is engineered to stabilize homohelicity in polarization textures at the domain scale. The synergistic use of a Bi2O2‐terminated Aurivillius buffer layer and a highly anisotropic compressive epitaxial strain offers new routes to control the polar‐texture ...
Elzbieta Gradauskaite, Lilia Huynh, Natascha Gray, Quintin N. Meier, Marta D. Rossell, Morgan Trassin   +5 more
wiley   +1 more source

Counterion Dependent Side‐Chain Relaxation Stiffens a Chemically Doped Thienothiophene Copolymer

Advanced Functional Materials, EarlyView.
Oxidation of a thienothiophene copolymer, p(g3TT‐T2), via different doping strategies and dopant molecules resulted in materials with similar oxidation levels and a high electrical conductivity of ≈100 S cm−1. However, mechanical properties varied significantly, with sub‐glass transition temperatures and elastic moduli spanning from –44°C to –3°C and ...
Mariavittoria Craighero, Meghna Jha, Elsa Veronica Flores‐Vela, Joost Kimpel, Andreas Schaefer, Jiali Guo, Jesika Asatryan, Alberto Peinador Veiga, Shuichi Haraguchi, Per‐Anders Carlsson, Jaime Martín, Mariano Campoy‐Quiles, Christian Müller   +12 more
wiley   +1 more source

2-dimensional impact-damping electrostatic actuators with elastomer-enhanced auxetic structure

Nature Communications
Biomimetic robots yearn for compliant actuators that are comparable to biological muscle in both functions and structural properties. For that, electrostatic actuators have been developed to imitate bio-muscle in features of fast response, high power ...
Xuechuan Wang, Yongyue Wang, Mingzhu Zhu, Xiaokui Yue   +3 more
doaj   +1 more source

Quenching Behavior of a Higher-Order Electrostatic Microelectromechanical System

Mathematics
Higher-order nonlinear effects induced by electrostatic coupling, large-deflection deformation and bending stiffness substantially alter the quenching evolution of elastic membranes in practical electrostatic MEMS devices.
Hao Wang, Anqi Shen
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

Advances in Sustainable and Wearable Textile Based Soft Robotics

Advanced Functional Materials, EarlyView.
This Review examines advances in wearable textile‐based soft robotics, focusing on sustainable materials, integrated sensing, and scalable actuation. It discusses manufacturing and system integration across healthcare, assistive robotics, prosthetics, and human–machine interfaces, and highlights key challenges in circular design, including life‐cycle ...
Zahir Abbas, Marzia Dulal, Sophia K. Novoselov, Victoria K. Novoselov, Kostya S. Novoselov, Shaila Afroj, Nazmul Karim   +6 more
wiley   +1 more source

Structure‐Guided Dynamical Mechanics in Bioinspired Double Twisted Laminated Thin Films

Advanced Functional Materials, EarlyView.
This work explores a dynamic mechanistic study of crack propagation and puncture testing via real‐time monitoring of crack initiation, propagation, and termination through nature‐inspired single and double twisted architectures fabricated from cellulose nanocrystals.
Justin Brackenridge, Olivia Harper, Jaejun Lee, Sergio Gonzalez‐Munoz, Vladimir V. Tsukruk   +4 more
wiley   +1 more source

The validity and inter-relationship of subjective and objective measurements of stiffness in human joints [PDF]

, 1988
Rheumatoid arthritis is a chronic, progressive, inflammatory disease characterised by pain, stiffness, swelling and loss of function. Severity of these symptoms is extremely variable both between patients and over time in individual patients.
Rhind, Valerie M.
core  

Association of arterial stiffness with single nucleotide polymorphism rs1333049 and metabolic risk factors [PDF]

, 2013
The electronic version of this article is the complete one and can be found online at: http://www.cardiab.com/content/12/1/93. This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.
Veerapol Kukongviriyapan, Vichai Senthong, Suphawadee Phababpha, Upa Kukongviriyapan, Chatri Settasatian, Pyatat Tatsanavivat, Senggunprai, L, Nantarat Komanasin, Poungrat Pakdeechote, Pakdeechote, P, Komanasin, N, Tatsanavivat, P, Nongnuch Settasatian, Senthong, V, Phongsak Intharaphet, Stephen E Greenwald, Settasatian, C, Intharaphet, P, Kukongviriyapan, V, Kukongviriyapan, U, Phababpha, S, Greenwald, SE, Laddawan Senggunprai, Settasatian, N   +23 more
core   +1 more source