Results 41 to 50 of about 96,556 (286)

Multispectral photoacoustic microscopy based on an optical–acoustic objective

open access: yesPhotoacoustics, 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
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

Optical-resolution photoacoustic imaging through thick tissue with a thin capillary as a dual optical-in acoustic-out waveguide

open access: yes, 2015
We demonstrate the ability to guide high-frequency photoacoustic waves through thick tissue with a water-filled silica-capillary (150 \mu m inner diameter and 30 mm long).
Bossy, Emmanuel   +6 more
core   +1 more source

Four‐Point Bending Tests at High Temperatures on Commercial MgO‐C Refractory Bricks with and Without Recyclate Considering Different Carbon Contents

open access: yesAdvanced Engineering Materials, EarlyView.
Four‐point bending tests are conducted in an argon atmosphere on commercial MgO‐C brick grades with and without MgO‐C recyclate from room temperature up to 1300 °C. No detrimental effect of the MgO‐C recyclates on bending strength is found. Instead, a decisive influence of the total carbon content is observed, with lower total carbon contents ...
Alexander Schramm   +5 more
wiley   +1 more source

6.4 GHz Acoustic Sensor for In-situ Monitoring of AFM Tip Wear [PDF]

open access: yes, 2011
This paper demonstrates an acoustic sensor that can resolve atomic force microscopy (AFM) tip blunting with a frequency sensitivity of 0.007%. The AFM tip is fabricated on a thin film piezoelectric aluminum nitride (AlN) membrane that is excited as a ...
Bhave, S.A.   +4 more
core   +1 more source

Multimodal Data‐Driven Microstructure Characterization

open access: yesAdvanced 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
wiley   +1 more source

Acoustic microscopy of rocks

open access: yesJournal of Microscopy, 1990
SUMMARYAcoustic images of two common rocks, granodiorite and limestone, are studied to explore the kind of geological information that they can provide. The contrast is primarily due to Rayleigh waves; in rock specimens they are mainly affected in their propagation by crystal anisotropy and surface discontinuities.
Rodriguezrey, A   +3 more
openaire   +2 more sources

Phononic band structure engineering for high-Q gigahertz surface acoustic wave resonators on lithium niobate

open access: yes, 2019
Phonons at gigahertz frequencies interact with electrons, photons, and atomic systems in solids, and therefore have extensive applications in signal processing, sensing, and quantum technologies.
Gadalla, M. N.   +12 more
core   +1 more source

3D (Bio) Printing Combined Fiber Fabrication Methods for Tissue Engineering Applications: Possibilities and Limitations

open access: yesAdvanced Functional Materials, EarlyView.
Biofabrication aims at providing innovative technologies and tools for the fabrication of tissue‐like constructs for tissue engineering and regenerative medicine applications. By integrating multiple biofabrication technologies, such as 3D (bio) printing with fiber fabrication methods, it would be more realistic to reconstruct native tissue's ...
Waseem Kitana   +2 more
wiley   +1 more source

Acoustical structured illumination for super-resolution ultrasound imaging. [PDF]

open access: yes, 2018
Structured illumination microscopy is an optical method to increase the spatial resolution of wide-field fluorescence imaging beyond the diffraction limit by applying a spatially structured illumination light.
Ferrara, Katherine W   +4 more
core   +3 more sources

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