Results 71 to 80 of about 18,801 (297)

Supervised and non-supervised AE data classification of nanomodified CFRP during DCB tests [PDF]

FME Transactions, 2016
The aim of the paper is to use acoustic emissions to study the effect of electrospun nylon 6,6 Nanofibrous mat on carbon-epoxy composites during Double Cantilever beam (DCB) tests.
Fallahi N., Nardoni G., Heidary Hossein, Palazzetti R., Yan X.T., Zucchelli A.   +5 more
doaj  

Characterization of Acoustic Emissions from Mechanical Seals for Fault Detection

, 2014
The application of high-frequency Acoustic Emissions (AE) for mechanical seals diagnosis is gaining acceptance as a useful complimentary tool. This paper investigates the AE characteristics of mechanical seals under different rotational speed and fluid ...
Gu, Fengshou, Ball, Andrew, Towsyfyan, Hossein, Hassin, Osama   +3 more
core  

Bearing defect diagnosis and acoustic emission. [PDF]

, 2003
Acoustic emission (AE) was originally developed for non-destructive testing of static structures, however, over the years its application has been extended to health monitoring of rotating machines and bearings.
Mba, David, A Morhain, D Mba, Morhain, A.   +3 more
core   +1 more source

Super‐Resolution Ultrasound Based Cell Tracking With Polymeric Nanobubbles

Advanced Materials, EarlyView.
This study presents a super‐resolution ultrasound platform for tracking cells in vivo. Biocompatible polymeric nanobubbles are used as highly echogenic intracellular labels. Following the injection of cells and microbubbles, ultrasound localization microscopy (ULM) can dynamically match the microvascular architecture and individual cell trajectories ...
Junlin Chen, Xiaoyu Wang, Jilin Fan, Bi Wang, Hanghang Fang, Yurui Wang, Hao Cui, Mohammad Roufarshbaf, Ekaterina Savina, Alexandra Valeske, Quim Peña, Yang Shi, Andreas Herrmann, Twan Lammers, Mathias Hornef, Roman Barmin, Thomas Lisson, Georg Schmitz, Anne Rix, Fabian Kiessling   +19 more
wiley   +1 more source

Detection of shaft-seal rubbing in large-scale power generation turbines with acoustic emissions. Case study. [PDF]

, 2004
Rubbing between the central rotor and the surrounding stationary components of machinery such as large-scale turbine units can escalate into severe vibration, resulting in costly damage.
Mba, David, Cooke, Alastair K., Hewitt, G, Roby, D   +3 more
core  

Thermal Radiation Emission From 3D Graphene Networks

Advanced Materials Interfaces, EarlyView.
Three‐dimensional graphene networks are demonstrated as exceptional broadband thermal emitters, exhibiting high‐intensity, spectrally homogeneous emission and strong mechanical flexibility compared to conventional emitters like silicon carbide.
Maria Chiara Paolozzi, Emanuele Scoppi, Jacopo Sera, Salvatore Macis, Antonio Grilli, Samuel Jeong, Yoshikazu Ito, Stefano Lupi   +7 more
wiley   +1 more source

Influence of Potting Radius on the Structural Performance and Failure Mechanism of Inserts in Sandwich Structures

Machines
In this study, the mechanical performance and failure modes of cold-potted inserts within sandwich structures were examined, focusing on the influence of the potting radius, while maintaining constant insert radius and specimen characteristics.
Filippos Filippou, Alexis Τ. Kermanidis
doaj   +1 more source

Experimental Study of Damage Development in Salt Rock under Uniaxial Stress Using Ultrasonic Velocity and Acoustic Emissions

Applied Sciences, 2018
Ultrasonic waves and acoustic emissions (AE) are important technologies to reveal rock damage. However, few studies have simultaneously monitored both types of data in the same experiment because of limitations on the experimental apparatus.
Haoran Li, Zhikai Dong, Yun Yang, Bo Liu, Mingyi Chen, Wenjun Jing   +5 more
doaj   +1 more source

Passive acoustic quantification of gas releases

, 2014
The assessment of undersea gas leakages from anthropogenic and natural sources is becoming increasingly important. This includes the detection of gas leaks and the quantification of gas flux. This has applications within oceanography (e.g.
Berges, B.J.P., Tomczyk, M., Leighton, T.G., White, P.R.   +3 more
core  

Acoustic measurements for the combustion diagnosis of diesel engines fuelled with biodiesels

, 2013
In this paper, an experimental investigation was carried out on the combustion process of a compression ignition (CI) engine running with biodiesel blends under steady state operating conditions.
Gu, Fengshou, Ball, Andrew, Zhen, Dong, Wang, Tie, Tesfa, Belachew   +4 more
core   +1 more source