Results 21 to 30 of about 100,941 (303)
IEEE Access, 2020 Rolling bearing fault diagnosis is conventionally performed by vibration-based diagnosis (VBD). However, VBD is restrained in some cases because vibration measurement usually requires the contact with the machine.
Ran Wang +5 more
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Exploitation of SAS interferometric phase statistics for coherent change detection
Electronics Letters, 2023 Coherent change detection (CCD) takes advantage of the interferometric processing of synthetic aperture sonar (SAS) images and enables the detection of small scale changes to the scene between image pairs.
Emma Shouldice, Vincent Myers
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Cortical Mechanisms for the Segregation and Representation of Acoustic Textures [PDF]
, 2010 Auditory object analysis requires two fundamental perceptual processes: the definition of the boundaries between objects, and the abstraction and maintenance of an object's characteristic features. Although it is intuitive to assume that the detection of
Stewart, Lauren +20 more
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Resonant Airborne Acoustic Emission for Nondestructive Testing and Defect Imaging in Composites
Applied Sciences, 2021 A new version of an acoustic emission mode which is different from its traditional counterpart is discussed in view of applications for nondestructive testing.
Igor Solodov +2 more
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Helmholtz-Structured Two-Dimensional Super-Diffraction Meta-Lens
Frontiers in Physics, 2022 Focusing beyond the acoustic diffraction limit has always been expected, especially in acoustic imaging and ultrasonic therapy. Manipulating the acoustic waves beyond the diffraction limit offers an alternative application potential in high-resolution ...
He-He Li +8 more
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IEEE Access, 2023 High-frequency chest wall oscillation (HFCWO) therapy is one of the techniques to facilitate the draining of a patient’s lung secretion in pathological situations, and smart therapy with HFCWO devices equipped with multiple actuators can be ...
Chang Sheng Lee +4 more
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Influence of operational variables in a hydrodynamic bearing on the generation of acoustic emission [PDF]
, 2010 Detecting mechanical faults of rotating machines particularly in hydrodynamic bearings has been recognised as important for preventing sudden shut downs.
Mba, David +2 more
core +1 more source
SensorsMapping corrosion depths along pipeline sections using guided-wave-based tomographic methods is a challenging task. Accurate defect sizing depends heavily on the precision of the forward model in guided wave tomography.
Emiel Hassefras +2 more
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Low frequency acoustic source imaging method based on coprime position non-synchronous measurement
Tongxin xuebao, 2023 In order to solve the problem that the acoustic imaging resolution was low under the condition of low frequency and low SNR due to the limited microphone array aperture and element density, a high resolution imaging method of low frequency and low SNR ...
Juan WEI, Yutao HE, Fangli NING
doaj
Fundamental issues in antenna design for microwave medical imaging applications [PDF]
, 2010 This paper surveys the development of microwave medical imaging and the fundamental challenges associated with microwave antennas design for medical imaging applications. Different microwave antennas used in medical imaging applications such as monopoles,
Fernando, Michael +7 more
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