Results 11 to 20 of about 19,586 (287)

Scanning electron‐acoustic microscopy of MgO crystals [PDF]

open access: yesJournal of Applied Physics, 1989
The capability of scanning electron-acoustic microscopy in the characterization of MgO crystals has been studied. The conditions for the observation of different surface and subsurface features in as-grown and deformed crystals are described and the results are discussed on the basis of thermal and nonthermal mechanisms of acoustic signal generation.
M Urchulutegui, Piqueras J, Llopis J
exaly   +5 more sources

Non-Invasive Analysis of Bulk and Surface Remodeling of Non-Woven PLLA and Fiber-Sponge PLLA/Chitosan Scaffolds in Cell Culture Environment [PDF]

open access: yesMolecules
The expanding application of three-dimensional matrices with complex surface topographies in regenerative medicine requires new methods to visualize and analyze the evolving elastic properties of tissue-engineered constructs (TECs) during maturation.
Elena Khramtsova   +8 more
doaj   +2 more sources

Recent Progress in Structural Integrity Evaluation of Microelectronic Packaging Using Scanning Acoustic Microscopy (SAM): A Review [PDF]

open access: yesSensors
Microelectronic packaging is crucial for protecting, powering, and interconnecting semiconductor chips, playing a critical role in the functionality and reliability of electronic devices.
Pouria Meshki Zadeh   +2 more
doaj   +2 more sources

Electronic Scanning in Acoustic Microscopy

open access: yes, 1990
Scanning acoustic microscopy (SAM) employs mechanical scanning in both x and y directions. There is one great advantage in this configuration which is that imaging is done on axis, resulting in diffraction limited resolution. However a mechanical system is inherently slow and cumbersome, even though recent advances have brought the scanning time for an
Cheeke, J., Germain, L.
openaire   +4 more sources

NONLINEAR SCANNING ELECTRON ACOUSTIC MICROSCOPY

open access: yesLe Journal de Physique Colloques, 1984
Nonlinear scanning electron acoustic microscopy is a special technique of acoustic microscopy which uses amplitudes and phases of higher harmonics, especially the second harmonic, of the sound wave originated by an electron beam modulated at a certain ground frequency.
Balk, L., Kultscher, N.
openaire   +2 more sources

Atomic force acoustic microscopy

open access: yes, 2022
S.123-153This chapter shortly reviews the scientific background of Atomic Force Acoustic Microscopy (AFAM), the basic theoretical models, the experimental techniques to obtain quantitative values of local elastic constants, and non-linear AFAM ...
Rabe, Ute   +2 more
core   +2 more sources

Use of Ultrasound Microscopy for Ex Vivo Analysis of Acoustic Impedance in Mouse Liver with Steatohepatitis

open access: yesAcoustics, 2020
Scanning acoustic microscopy reveals information on histology and acoustic impedance through tissues. The objective of the present study was to investigate whether acoustic impedance values in the liver over time reflect the progression of ...
Hideki Kumagai   +5 more
doaj   +1 more source

Reliability Study of Miniaturized Surface Acoustic Wave RF-Filters With Copper Pillar Bump Interconnections

open access: yesIEEE Access, 2021
Microacoustic radio frequency filters are essential electronic components for all devices using wireless communication. For miniaturization and cost reduction it is necessary to further reduce the area for the electrical contacts on the chip. CPB (copper
Jakob Schober   +3 more
doaj   +1 more source

Deep learning alignment of bidirectional raster scanning in high speed photoacoustic microscopy

open access: yesScientific Reports, 2022
Simultaneous point-by-point raster scanning of optical and acoustic beams has been widely adapted to high-speed photoacoustic microscopy (PAM) using a water-immersible microelectromechanical system or galvanometer scanner.
Jongbeom Kim   +8 more
doaj   +1 more source

Atrial fibrillation designation with micro-Raman spectroscopy and scanning acoustic microscope

open access: yesScientific 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
doaj   +1 more source

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