Results 21 to 30 of about 30,168 (264)
Image denoising in acoustic microscopy using block-matching and 4D filter
Scientific Reports, 2023 Scanning acoustic microscopy (SAM) is a label-free imaging technique used in biomedical imaging, non-destructive testing, and material research to visualize surface and sub-surface structures.
Shubham Kumar Gupta +4 more
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Multispectral photoacoustic microscopy based on an optical–acoustic objective
Photoacoustics, 2015 We have developed reflection-mode multispectral photoacoustic microscopy (PAM) based on a novel optical–acoustic objective that integrates a customized ultrasonic transducer and a commercial reflective microscope objective into one solid piece.
Rui Cao +5 more
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Reports on Progress in Physics, 1992 Acoustic microscopy enables one to image the interaction of acoustic waves with the elastic properties of a specimen with microscopic resolution. A lens with good focusing properties on the axis can be used for both transmitting and receiving the signal, and an image is formed by scanning the lens mechanically over the specimen.
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Beilstein Journal of Nanotechnology, 2020 In this work, a high-resolution atomic force acoustic microscopy imaging technique is developed in order to obtain the local indentation modulus at the nanoscale level.
Edgar Cruz Valeriano +9 more
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Wideband acoustic microscopy of tissue [PDF]
The Journal of the Acoustical Society of America, 1988 A scanning acoustic microscope (SAM) has been used to measure the elastic properties of tissue with a resolution of around 8 μm (C. M. W. Daft et al., Proc. 1986 IEEE Ultrasonics Symposium, 945—948). This is achieved by broadband excitation of the acoustic lens, and the recording of an undemodulated returning signal.
Daft, C, Briggs, G
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Karl Popper and the Mechanisms of Hydrogen Embrittlement
Advanced Engineering Materials, EarlyView.Representation of the beginning of loss of ductility rather than embrittlement. Small concentrations of hydrogen in a diffusible form within iron are well‐established to harm the mechanical integrity of steels. There are theories that attempt to explain the pernicious role of hydrogen.
H. K. D. H. Bhadeshia
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X-ray free-electron laser induced acoustic microscopy (XFELAM)
PhotoacousticsThe X-ray free-electron laser (XFEL) has remarkably advanced X-ray imaging technology and enabled important scientific achievements. The XFEL’s extremely high power, short pulse width, low emittance, and high coherence make possible such diverse imaging ...
Seongwook Choi +7 more
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Multimodal Data‐Driven Microstructure Characterization
Advanced Engineering Materials, EarlyView.A self‐consistent autonomous workflow for EBSP‐based microstructure segmentation by integrating PCA, GMM clustering, and cNMF with information‐theoretic parameter selection, requiring no user input. An optimal ROI size related to characteristic grain size is identified.
Qi Zhang +4 more
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Atrial fibrillation designation with micro-Raman spectroscopy and scanning acoustic microscope
Scientific Reports, 2022 Atrial fibrillation (AF) is diagnosed with the electrocardiogram, which is the gold standard in clinics. However, sufficient arrhythmia monitoring takes a long time, and many of the tests are made in only a few seconds, which can lead arrhythmia to be ...
Ugur Parlatan +10 more
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Current Status and Challenges in Data Collection for Aerospace Coatings Deposited by Plasma Spraying
Advanced Engineering Materials, EarlyView.An innovative approach has been integrated into the GRENAT project to optimize plasma spraying and coating performance. Raw materials are accelerated and melted in the plasma generated by torches, creating coatings. Monitoring sensors collect process data which are combined with ex situ characterization data.
Lila Randriamananjara +8 more
wiley +1 more source