Results 91 to 100 of about 49,728 (310)

Smart Face Masks as Wearable Respiratory Sensors: A Review of Sensor Technologies, Materials, and Future Directions

open access: yesAdvanced Healthcare Materials, EarlyView.
This review highlights recent advances in smart face masks that actively monitor breathing. By integrating humidity, gas, temperature, pressure, strain, and triboelectric sensors, these masks track key respiratory parameters in real time. The article summarizes sensor mechanisms, compares performance across studies, and discusses challenges and future ...
Negin Faramarzi   +7 more
wiley   +1 more source

FATIGUE CRACK GROWTH LIFE ANALYSIS OF NICKEL-BASE SINGLE CRYSTAL TURBINE BLADE TENON

open access: yesJixie qiangdu, 2015
Based on the work status of the aero-engine turbine blade,the contact fatigue tests of modeling specimens of tenon / groove were carried out. A fatigue crack growth life model of the modeling specimens was established. The crystallographic finite element
ZHANG ZhongKui
doaj  

Fatigue Damage Mechanism-Based Dependent Modeling With Stochastic Degradation and Random Shocks

open access: yesIEEE Access, 2018
This paper proposes a dependent modeling method for reliability estimation of metal structures under constant amplitude loading and random shocks considering the nonlinear damage accumulation mechanism.
Dan Xu   +4 more
doaj   +1 more source

Epidermal Patch Technologies for Integrated Healthcare and Infection Management

open access: yesAdvanced Healthcare Materials, EarlyView.
Epidermal patches have evolved from simple wound coverings into multifunctional, skin‐conformable platforms integrating drug delivery, biosensing, and therapeutic functionalities. This review highlights their material innovations, fabrication strategies, and intelligent designs, including hydrogels, microneedles, and flexible electronics, while ...
Yuqi Wang   +7 more
wiley   +1 more source

A local approach to creep-fatigue-oxidation interactions in Inco 718 alloy

open access: yes, 2013
International audienceUnderstanding and modeling hold time effects on fatigue crack growth rate (FCGR) above 500 °C in Inco 718DA is a great challenge.
De Moura Pinho, Raul   +3 more
core   +1 more source

A practical methodology to select fretting palliatives: Application to shot peening, hard chromium and WC-Co coatings [PDF]

open access: yes, 2005
Considered as a plague for numerous industrial assemblies, fretting, associated to slight oscillatory displacement, is encountered in all quasi-static contacts subjected to vibration.
Fouvry, S., Kubiak, K., Marechal, A.M.
core   +1 more source

Self‐Powered Flexible Triboelectric‐Gated Ion‐Gel Transistor for Neuromorphic Tactile Sensing and Human Activity Recognition

open access: yesAdvanced Materials, EarlyView.
A fully flexible ion‐gel‐gated graphene‐channel transistor driven by a triboelectric nanogenerator enables self‐powered tactile sensing and synaptic learning. Mimicking spike‐rate‐dependent plasticity, the device exhibits frequency‐selective potentiation and depression, supporting rate‐coded neuromorphic computation even under flex.
Hanseong Cho   +3 more
wiley   +1 more source

Vibration analysis and fatigue lifetime assessment of a stage compressor blade with crack in gas turbine

open access: yesAdvances in Mechanical Engineering
The compressor blades in gas turbines are subjected to long-term dynamic stress, and the blades sustain a certain degree of damage. This high-cycle fatigue damage of the blade accumulates to a certain extent, the crack will appear.
Guofang Nan, Ying Wang, Xu Chen, Xia Yao
doaj   +1 more source

2D Nanomaterials Toward Function‐Ready Superlubricity in Advanced Microsystems

open access: yesAdvanced Materials, EarlyView.
A unified framework links structural and transformation superlubricity with microsystem functions and deployment requirements. Mechanisms, device architectures, integration strategies, AI‐guided discovery, and benchmarking protocols are connected to define function‐ready superlubricity in advanced microsystems.
Yushan Geng, Jun Yang, Yong Yang
wiley   +1 more source

Performance analysis of the multiwalled carbon nanotubes electroless coating over 7075-T6 aluminum specimens subjected to variable amplitude loading cases

open access: yesForces in Mechanics
The designs and improvements in the damage tolerance field for engineering constructions subjected to variable amplitude loading are crucial research topic in the modern technology.
Mustafa M. Kadhim   +2 more
doaj   +1 more source

Home - About - Disclaimer - Privacy