Results 11 to 20 of about 10,784 (189)
The role of cardiac acoustic biomarkers in monitoring patients with heart failure: A systematic literature review. [PDF]
ESC Heart FailAbstract Heart failure (HF) creates a considerable clinical, humanistic and economic burden on patients and caregivers as well as on healthcare systems. To attenuate the significant burden of HF, there is a need for enhanced management of patients with HF.
Butler J +8 more
europepmc +2 more sources
Visually Encoded Contact Inspection System for EMATs [PDF]
Journal of Nondestructive Evaluation, 2022 AbstractContact inspections are commonly performed in industry to check for defects and degradation, such as corrosion or cracks. Non-destructive evaluation (NDE) probes are being deployed with increasing frequency using autonomous robots, especially in harsh environments or in areas where access is restricted and difficult.
Ka Yung +3 more
openaire +3 more sources
Sensors, 2022 This article proposes an electromagnetic acoustic transducer (EMAT) for selectively improving the purity and amplitude of ultrasonic Lamb waves in non-ferromagnetic plates. The developed EMAT consists of a racetrack coil and a group of periodic permanent
Xinfeng Guo +3 more
doaj +1 more source
Scientific Reports, 2023 Electron energy loss spectroscopy (EELS) is a well established technique in electron microscopy that yields information on the elemental content of a sample in a very direct manner.
Arno Annys, Daen Jannis, Johan Verbeeck
doaj +1 more source
Magnetic phase transitions in Gd64Sc36 studied using non-contact ultrasonics [PDF]
, 2012 The speed and attenuation of ultrasound propagation can be used to determine material properties and identify phase transitions. Standard ultrasonic contact techniques are not always convenient due to the necessity of using couplant; however, recently ...
Andrianov A B +17 more
core +2 more sources
AIP Advances, 2022 In order for an electromagnetic acoustic transducer (EMAT) to be able to pick up the out-of-plane vibrations of ultrasonic waves generated by the laser and to facilitate the movement of the system, a new pulse electromagnet EMAT is proposed, which can be
Wei Yuan +3 more
doaj +1 more source
Ultrasonic metal sheet thickness measurement without prior wave speed calibration [PDF]
, 2013 Conventional ultrasonic mensuration of sample thickness from one side only requires the bulk wave reverberation time and a calibration speed. This speed changes with temperature, stress, and microstructure, limiting thickness measurement accuracy ...
Dixon, S. +4 more
core +1 more source
Eddy current generation enhancement using ferrite for electromagnetic acoustic transduction [PDF]
, 2006 Eddy currents are generated in an electrically conducting surface as a step in electromagnetic acoustic transduction (EAT). In eddy current testing, wire coils are often wound onto a ferrite core to increase the generated eddy current.
S. Dixon, Sophian A., X. Jian
core +1 more source
Multiple wavemode scanning for near and far-side defect characterisation [PDF]
, 2020 The combination of ultrasonic inspections using different wavemodes can give more information than is available with single mode inspection. In this work, the response of shear and Rayleigh waves to surface-breaking defects propagating on the near-side ...
Edwards, R. S. (Rachel S.), Xiang, L.
core +1 more source
Nihon Kikai Gakkai ronbunshu, 2019 Nondestructive inspection of structures in a high temperature environment is requested for safety and economic. An ultrasonic flaw detection system using an electromagnetic acoustic transducer (EMAT) is said to be suitable for high temperature ...
Riichi MURAYAMA +2 more
doaj +1 more source