Results 81 to 90 of about 2,725 (194)

On the lateral excitation of shear modes in AlN layered resonators [PDF]

open access: yes, 2012
In this paper we describe the fabrication and frequency characterization of different structures intended for the lateral excitation of shear modes in AlN c-axis-oriented films, which are at the same time designed to minimize the excitation of ...
Capilla Osorio, José   +5 more
core   +1 more source

Mass Production of Uniform Embryoid Bodies by Acoustic Standing Waves

open access: yesSmall Methods, Volume 9, Issue 9, September 1, 2025.
This innovative method for the generation of human induced pluripotent stem cell (hiPSC)‐derived embryoid bodies provides a scalable, flexible and cell‐friendly approach for the mass production of highly uniform cell clusters. It maintains the high cell viability and pluripotent state of hiPSCs while allowing successful differentiation into ...
Johannes Hahn   +7 more
wiley   +1 more source

Parameter Identification for Nonlinear Circuit Models of Power BAW Resonator

open access: yesAdvances in Electrical and Computer Engineering, 2011
The large signal operation of the bulk acoustic wave (BAW) resonators is characterized by the amplitude-frequency effect and the intermodulation effect.
CONSTANTINESCU, F.   +5 more
doaj   +1 more source

The Development of Micromachined Gyroscope Structure and Circuitry Technology

open access: yesSensors, 2014
This review surveys micromachined gyroscope structure and circuitry technology. The principle of micromachined gyroscopes is first introduced. Then, different kinds of MEMS gyroscope structures, materials and fabrication technologies are illustrated ...
Dunzhu Xia, Cheng Yu, Lun Kong
doaj   +1 more source

Characterization of energy trapping in a bulk acoustic wave resonator [PDF]

open access: yes, 2010
Acoustic wave fields both within the active electrode area of a solidly mounted 1.8 GHz bulk acoustic waveresonator, and around it in the surrounding region, are measured using a heterodyne laser interferometer.
Graebner J. E.   +7 more
core   +1 more source

Split resonances for simultaneous detection and control measurements in a single bulk acoustic wave (BAW) sensor

open access: yesNanoscale, 2018
Split resonances provide an innovative method for simultaneous detection of different analytes and control measurements in a single chip.
Wajs, Ewelina   +2 more
openaire   +3 more sources

Epitaxial and Fiber‐Textured Stacks of Al0.7Sc0.3N/Mo/AlN Prepared by Magnetron Sputter Epitaxy for Bulk Acoustic Wave Devices: A Comparison using High Overtone Bulk Acoustic Wave Resonator

open access: yesphysica status solidi (a), Volume 222, Issue 16, August 2025.
The study compares high overtone bulk acoustic wave resonators (HBAR) using fiber‐textured and epitaxial Al0.7Sc0.3N/Mo/AlN stacks on Si(111). HBAR fabricated using an epitaxial stack show superior performance, with 25% higher figure of merit due to improved crystal quality and piezoelectric response.
Balasubramanian Sundarapandian   +6 more
wiley   +1 more source

The Power Flow Angle of Acoustic Waves in Thin Piezoelectric Plates [PDF]

open access: yes, 2008
The curves of slowness and power flow angle (PFA) of quasi-antisymmetric (A0) and quasi-symmetric (S0) Lamb waves as well as quasi-shear-horizontal (SH0) acoustic waves in thin plates of lithium niobate and potassium niobate of X-,Y-, and Z-cuts for ...
Joshi, Shrinivas   +4 more
core   +1 more source

Nonlinear effects of SiO2 layers in bulk acoustic wave resonators [PDF]

open access: yes, 2018
©2017 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new ...
Aigner, Robert   +6 more
core   +2 more sources

Mechanisms of De‐icing by Surface Rayleigh and Plate Lamb Acoustic Waves

open access: yesAdvanced Engineering Materials, Volume 27, Issue 13, July 2025.
Ice accretion impacts daily life, renewable energy generation, maintenance, and security in industries and aeronautics. Acoustic waves (AW) are a promising method for ice removal, although de‐icing mechanisms require further investigation to optimize energy efficiency.
Shilpi Pandey   +15 more
wiley   +1 more source

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