Results 51 to 60 of about 28,870 (263)

Bistable Isochoric Chiral Metamaterials with Reprogrammable Multiaxial Responses

Advanced Functional Materials, EarlyView.
An isochoric bistable rotational unit cell enables in situ modification of internal contact conditions post‐fabrication, without altering the global envelope dimensions of the surrounding architecture. By selectively switching between open and closed states, the tessellated chiral metamaterial can reprogram its volumetric response, including bulk ...
Shujia Chen, Lei Wu, Jingran Liu, Damiano Pasini   +3 more
wiley   +1 more source

In Situ Interfacial Assembly of Dynamic Semi‐Interpenetrating Biopolymer Networks for Robust and Mechanically Adaptive Droplet Interfaces

Advanced Functional Materials, EarlyView.
A dynamic interfacial semi‐interpenetrating polymer network is constructed by sequential assembly of β‐sheet‐rich SF and CS‐RL. The SF framework provides mechanical strength, while dynamically associated CS‐RL enables local rearrangement, allowing droplets to rapidly reconfigure without loss of interfacial integrity.
Yaping Zhang, Yujie Liu, Yikai Xu, Xunda Feng, Ling Zhang, Hongbo Zeng, Hao Liu, Xiaohui Mao   +7 more
wiley   +1 more source

Programming Neuromorphic Plasticity Through Ionic and Electronic Coupling in Organic Electrochemical Transistors

Advanced Functional Materials, EarlyView.
Neuromorphic plasticity in OECTs is governed by the post‐stimulus evolution of coupled ionic and electronic states. Semiconductor chemistry and morphology, electrolyte composition and interfaces, and device architecture regulate ion injection, transport, confinement, and release, shifting responses from rapidly relaxing STP to metastable memory and ...
Inho Lee, Hyoik Jang, Ji Hwan Kim, Jonghyun Won, Namhee Kim, Wonseok Shin, Giwon Lee, Eunho Lee, Daegun Kim, Sungjun Park   +9 more
wiley   +1 more source

Analysis of Buckling Propagation of the Composite Structure of Sandwich Pipe at External Pressure

Shiyou jixie, 2020
The huge hydrostatic pressure in the deep sea always causes local buckling instability on the pipeline. In this paper, ABAQUS, a nonlinear finite element software, is used to establish a 3D numerical, nonlinear, quasi-static buckling propagation model ...
Zhang Lei, Lou Min, Ji Peng, Lu Shun
doaj  

Buckling of Scroll Waves

Physical Review Letters, 2012
A scroll wave in a sufficiently thin layer of an excitable medium with negative filament tension can be stable nevertheless due to filament rigidity. Above a certain critical thickness of the medium, such scroll wave will have a tendency to deform into a buckled, precessing state. Experimentally this will be seen as meandering of the spiral wave on the
Dierckx, H., Verschelde, H., Selsil, O., Biktashev, V. N.   +3 more
openaire   +6 more sources

Ultra‐Thin Tow‐Based Discontinuous Composites—Material Overview and Aspirations

Advanced Functional Materials, EarlyView.
Tow‐based discontinuous composites made from ultra‐thin tapes offer outstanding in‐plane mechanical properties. This material, inspired by Nacre, has high volume fraction of tapes exceeding 90 % and allows for quasi‐isotropic material plates less than 100 micrometer in thickness.
Ioannis Katsivalis, Vasiliki Safranoglou, Luis Gulfo, Michael R. Wisnom, Martin Fagerström, Malin Åkermo, Soraia Pimenta, Dan Zenkert, Leif E. Asp   +8 more
wiley   +1 more source

Orbital Engineering through Strain‐Induced Spin–Orbit–Lattice Coupling in Sr2FeReO6 Double Perovskites

Advanced Functional Materials, EarlyView.
Epitaxial strain drives oxygen‐octahedral reconfiguration in Sr2FeReO6 double‐perovskite thin films, inducing orbital‐selective reconstruction of Re 5d states through modified Fe–O–Re hybridization. This coupled lattice–orbital response enables magnetic easy‐axis reversal and a transition from metallic‐like to semiconducting‐like transport.
Gahee Noh, Seong‐Sik Kim, Hansol Lee, Yong‐Jin Kim, Yeongrok Jin, Donghwa Lee, Ho Nyung Lee, Jaekwang Lee, Chan‐Ho Yang, Changhee Sohn, Si‐Young Choi   +10 more
wiley   +1 more source

Study of The effect of thickness and initial geometric imperfection of cylindrical composite shell on the buckling behavior in axial pressure [PDF]

مجله مدل سازی در مهندسی, 2018
Today, composite cylindrical shells extensively, have been used in aerospace to increase the performance of the structures. Experience has shown that, when the shells are under compressive loading, Buckling phenomenon will be the most important factor in
ebrahim alizadeh, javad babaei, Pouya Dehestani, reza Batalebluie, hossein behrooz   +4 more
doaj   +1 more source

Poisson's Ratio‐Driven Control of Myogenic Differentiation and Maturation in Auxetic Metamaterials under Dynamic Mechanical Stimulation

Advanced Functional Materials, EarlyView.
This study explored how innovative “auxetic” scaffolds, which expand when stretched, influence skeletal muscle development. Researchers cultured muscle cells on different scaffold designs and applied repeated stretching over 10 days. They found that scaffold geometry affected muscle cell differentiation and fiber formation.
Maria Kalogeropoulou, Prabhdeep Kaur, Monica Boffito, Pierpaolo Fucile, Gianluca Ciardelli, Lorenzo Moroni   +5 more
wiley   +1 more source

Biodegradable Conductors for Implantable and Wearable Transient Bioelectronics

Advanced Functional Materials, EarlyView.
Biodegradable conductors are essential building blocks for transient bioelectronics, enabling temporary sensing, stimulation, and energy transfer while eliminating the need for device retrieval. This review summarizes biodegradable metals, conducting polymers, ionic conductors, and conductive composites, highlighting degradation mechanisms, material ...
Yicheng Zhu, Yijun Liu, Naoji Matsuhisa
wiley   +1 more source