Results 111 to 120 of about 173,689,056 (279)

A Numerical–Experimental Approach for Multi‐Matrix Fiber‐Reinforced Plastics Characterization Using Finite Element Model Updating

Advanced Engineering Materials, EarlyView.
A numerical–experimental framework is developed for characterizing multi‐matrix fiber‐reinforced polymers (MM‐FRPs) combining epoxy and polyurethane matrices. Harmonic bending tests are integrated with finite element model updating (FEMU) to simultaneously identify elastic and viscoelastic material parameters.
Rodrigo M. Dartora, Tales V. Lisbôa, Axel Spickenheuer, Rogério J. Marczak, Jakson M. Vassoler   +4 more
wiley   +1 more source

Thermomechanical Fatigue and Creep–Fatigue Interaction of Inconel 718 Additively Manufactured by Laser Beam Powder Bed Fusion

Advanced Engineering Materials, EarlyView.
Thermomechanical fatigue tests of laser beam powder bed fusion (PBF‐LB) Inconel 718 show that the additively manufactured material reaches almost the lifetimes of conventionally‐rolled material under no‐dwell conditions. Introducing dwell times at the maximum temperature markedly reduces the lifetimes due to pronounced grain boundary sliding associated
Stefan Guth, Tomáš Babinský, Jan Lars Riedel, Wen Hao Kan, Aijun Huang, Martin Heilmaier, Ivo Šulák   +6 more
wiley   +1 more source

The low-frequency fluctuation in semiconductor lasers with external cavity at different temperatures

, 2000
The laser temperature dependence of the Iow frequency fluctuation (LFF) behavior in the output power of semiconductor lasers under optical feedback is experimentally investigated. It is found that the frequency range of the LFF fluctuates with an average
Al-Dwayyan, A.S., Reda, M.A., Al-Salhi, M.S., Harith, M.A., Azzeer, A.M.   +4 more
core  

Visual discomfort and blur [PDF]

, 2013
This work was supported by a doctoral training grant from the BBSRC to LOH.Certain visual stimuli, such as striped patterns and filtered noise, have been reported to be uncomfortable.
Hibbard, Paul Barry, O'Hare, L, O'Hare, Louise, Hibbard, PB, Hibbard, P. B.   +4 more
core   +1 more source

Air‐Pressure–Actuated Vibroacoustic Metamaterial With Tunable Bandgap: Design, Modeling, and Characterization

Advanced Engineering Materials, EarlyView.
This article presents the design, modeling, and characterization of air‐pressure–actuated programmable vibroacoustic metamaterials (PVAMM). The study focuses on leveraging air pressure to dynamically tune resonance frequencies for effective noise attenuation.
William Kaal, Michael M. Becker, Sarah C. L. Fischer   +2 more
wiley   +1 more source

Electrochemical Behavior of Flame‐Sprayed Sc‐Doped AlCoCrFeMo High‐Entropy Alloy Coatings in 3.5% Sodium Chloride Solution

Advanced Engineering Materials, EarlyView.
Scandium (Sc)‐doped AlCoCrFeMo HEA coatings are fabricated via flame spraying with 0.1, 0.3, and 0.5 wt% Sc additions. Among these, the HEA‐Sc0.3 coating exhibits the highest corrosion resistance, indicated by a more positive corrosion potential and lower current density.
Pankaj Kumar, Akash Vyas, Mohammad Aatif Qazi, Nashit Jalal, Maria Ophelia Jarligo, Mostafa Yakout, Jing Liu, André McDonald   +7 more
wiley   +1 more source

Capturing Amplitude Changes of Low-Frequency Fluctuations in Functional Magnetic Resonance Imaging Signal: A Pilot Acupuncture Study on NeiGuan (PC6)

, 2012
Objectives: This study aims to examine amplitude changes of low-frequency oscillations (fALFF) in the blood-oxygen level-dependent (BOLD) signal associated with acupuncture on NeiGuan (PC6)
Wu, Yun-Hu, Yin, Hao, Xing, Wei, Zhang, Gang, Zuo, Xi-Nian, Han, Hong-Yan, Zhou, YL (reprint author), Henan Univ Tradit Chinese Med, Affiliated Hosp 3, Dept Acupuncture, 63 Dongming Rd, Zhengzhou 450008, Henan, Peoples R China., Zhou, You-Long, Xu, Hong-Zhou   +8 more
core  

Amplitude of low-frequency fluctuations in childhood-onset schizophrenia with or without obsessive-compulsive symptoms: a resting-state functional magnetic resonance imaging study

Archives of Medical Science, 2018
Introduction Childhood-onset schizophrenia with obsessive-compulsive symptoms (COSO) and without obsessive-compulsive symptoms (COS) share considerable overlap in clinical features and genetic risk factors.
Yinghui Liang, Rongrong Shao, Zhiying Zhang, Xinmin Li, Longhao Zhou, Suqin Guo   +5 more
doaj   +1 more source

Distinct Microstructural Characteristic Lengths Defining Notch Fatigue Crack Initiation and Propagation, and Defect Tolerance in Advanced Steels

Advanced Engineering Materials, EarlyView.
Schematic representation of modes of microcrack nucleation, growth and temporary arrestment at different boundaries, with the criteria for crack propagation in three scenarios: (1) large notch, (2) defect/small sharp notch, and (3) long crack. This work revisits and integrates results on the fatigue behavior of advanced bainitic steels (in particular ...
Lucia Morales‐Rivas
wiley   +1 more source

Modeling and Analysis of Amplitude-Frequency Characteristics of Torsional Vibration for Automotive Powertrain

, 2020
In the present paper, the amplitude-frequency characteristics of torsional vibration are discussed theoretically and experimentally for automotive powertrain.
Feifan Xia, Jiwei Zhu, Jinli Xu
core   +1 more source