Results 241 to 250 of about 16,602,702 (300)

Harnessing Phase Separation for the Development of High‐Performance Hydrogels

open access: yesAdvanced Science, EarlyView.
ABSTRACT Hydrogels are indispensable for the development of next‐generation bioelectronics, soft robotics, and biomedical devices, where their mechanical properties determine performance and reliability. Among strategies to enhance hydrogel mechanics, phase separation enables controlled heterogeneity resulting in gel networks that are reinforced by ...
Yue Shao   +3 more
wiley   +1 more source

Advances and Perspectives in Graphene‐Based Quantum Dots Enabled Neuromorphic Devices

open access: yesAdvanced Science, EarlyView.
Graphene‐based QDs are zero‐dimensional carbon nanomaterials with pronounced quantum confinement and tunable electronic structures. Herein, we summarize their synthesis strategies and functionalization methods, and highlight their functional roles and operating mechanisms in devices, as well as recent advances in neuromorphic electronics. We anticipate
Yulin Zhen   +9 more
wiley   +1 more source

Remote Magnetomechanical Neuromodulation Uncovers Therapeutic Mechanisms for Alleviating Parkinsonian Symptoms in Freely Moving Mice

open access: yesAdvanced Science, EarlyView.
Magnetomechanical neuromodulation using magnetic nanodiscs enables remote activation of neurons. In a hemiparkinsonian mouse model, alternating magnetic fields actuate the nanodiscs to generate torque that opens mechanosensitive ion channels within the subthalamic nucleus, thereby modulating basal ganglia motor circuitry.
Anouk Wolters   +12 more
wiley   +1 more source

Low Cycle Fatigue-High Cycle Fatigue Interaction in Type 316LN Stainless Steel at High Temperatures

open access: yesLow Cycle Fatigue-High Cycle Fatigue Interaction in Type 316LN Stainless Steel at High Temperatures
openaire   +1 more source

Effects of specimen size on fatigue life of metallic materials in high-cycle and very-high-cycle fatigue regimes [PDF]

open access: yesFatigue and Fracture of Engineering Materials and Structures, 2016
This paper proposes a new method to investigate the effect of specimen size on fatigue life of metallic materials in high-cycle fatigue and very-high-cycle fatigue regimes in the light of statistical analysis.
Zhang XL(张晓乐)   +4 more
exaly   +2 more sources

On high-cycle fatigue of 316L stents

Computer Methods in Biomechanics and Biomedical Engineering, 2012
This paper deals with fatigue life prediction of 316L stainless steel cardiac stents. Stents are biomedical devices used to reopen narrowed vessels. Fatigue life is dominated by the cyclic loading due to the systolic and diastolic pressure and the design against premature mechanical failure is of extreme importance.
Olga, Barrera   +4 more
openaire   +2 more sources

Very high cycle fatigue – Is there a fatigue limit?

International Journal of Fatigue, 2011
Abstract The paper gives an overview of the present state of research on fatigue strength and failure mechanisms at very high number of cycles ( N f  > 10 7 ). Testing facilities are listed. A classification of materials with typical S – N curves and influencing factors like notches, residual stresses and environment are given.
B. Pyttel, D. Schwerdt, C. Berger
openaire   +1 more source

A high‐cycle fatigue apparatus at 20 kHz for low‐cycle fatigue/high‐cycle fatigue interaction testing

Fatigue & Fracture of Engineering Materials & Structures, 2001
High‐cycle fatigue (HCF) failures in aircraft engines are attributed to material damage states, created during processing or by in‐service loading and environmental conditions, and then propagated to failure by HCF loading. The loading configuration experienced by aircraft engine turbine blades consists of an axial load caused by the centrifugal ...
openaire   +1 more source

Progressive fatigue damage modeling for FRP in high cycle and very high cycle fatigue regimes

open access: yesInternational Journal of Fatigue
A progressive fatigue damage model is proposed in this paper to model the FRP fatigue behaviors and damage progression in high cycle and very high cycle fatigue (HCF and VHCF) regimes.
Gen Li   +6 more
core   +3 more sources

Conventional Fatigue (High- and Low-Cycle Fatigue)

1997
It is known that when metals are subjected to fluctuating load, the failure occurs at a stress level much lower than the fracture stress corresponding to a monotonic tension load.1 With the development of the railway in the nineteenth century, the fatigue failure of railway axles became a problem and much attention was given to the understanding of the
Bahram Farahmand   +2 more
openaire   +1 more source

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