Results 51 to 60 of about 1,805,737 (314)

Numerical Determination of the Secondary Acoustic Radiation Force on a Small Sphere in a Plane Standing Wave Field

Micromachines, 2019
Two numerical methods based on the Finite Element Method are presented for calculating the secondary acoustic radiation force between interacting spherical particles.
Gergely Simon, Marco A. B. Andrade, Marc P. Y. Desmulliez, Mathis O. Riehle, Anne L. Bernassau   +4 more
doaj   +1 more source

Interaction‐Driven Assembly Pathways in Heterogeneous Active Microrobotic Systems

Advanced Functional Materials, EarlyView.
Peanut‐ and cube‐shaped light‐powered microrobots exhibit distinct magnetic and photocatalytic responses that determine their heterogeneous self‐assembly. In the dark, magnetic dipole interactions drive colloidal copolymerization with cubes acting as nucleation centers, whereas under light irradiation, phoretic interactions compete with magnetic ...
Domenico Calabrò, Roshan Velluvakandy, Martin Pumera, Francesco Priolo, Salvo Mirabella, Mario Urso   +5 more
wiley   +1 more source

Seafloor Topographic Data Processing in Near-Seafloor Acoustic Field Simulation

Acoustics
Near-seafloor acoustic field characteristics are essential prior knowledge for near-seafloor underwater acoustic engineering. Scholte waves are a crucial component of the near-seafloor acoustic fields.
Siyu Ma, Yuxiang Zhang, Zhinan Xie, Jun Li   +3 more
doaj   +1 more source

Comparison of Higher-Order Numerical Schemes and Several Filtering Methods Applied to Navier-Stokes Equations with Applications to Computational Aeroacoustics

Journal of Algorithms & Computational Technology, 2009
In computational acoustics, fluid-acoustic coupling methods for the computation of sound have been widely used by researchers for the last five decades.
L.S. Lai, G.S. Djambazov, C.-H. Lai, K.A. Pericleous   +3 more
doaj   +1 more source

Linear and nonlinear modeling of self-excited acoustic oscillations in a T-shaped thermoacoustic engine

AIP Advances, 2021
Branch tubes are often used in thermoacoustic engines (TAEs) for acoustic power extraction or acoustic field adjustment. Their roles, although critical for the performance of the thermoacoustic system, are not fully understood yet. To address this issue,
Geng Chen, Haitian Hao, Aidong Deng
doaj   +1 more source

Acoustic Hypochlorite Activation in Simulated Curved Canals [PDF]

Journal of Endodontics, 2009
INTRODUCTION: It was the goal of this study to compare different NaOCl activation schemes regarding a desired and an untoward outcome. Ultrasonic tips and a currently marketed sonic system were used in conjunction with a 2.5% sodium hypochlorite solution.
Al-Jadaa, A, Paqué, F, Attin, T, Zehnder, Matthias   +3 more
openaire   +4 more sources

An Edible Chitosan‐Based Acoustic Sensor for Sound‐Responsive Actuation in Edible Robots

Advanced Functional Materials, EarlyView.
This study introduces an edible acoustic sensor for robotic food and edible robotics. Built from a chitosan piezoelectric film between gold electrodes, the sensor enables acoustic communication through ON/OFF keying. Integrated into an edible robot with pneumatically actuated arms and neck, it responds to high‐frequency tones.
Valerio Francesco Annese, Bokeon Kwak, Gaia de Marzo, Giulia Coco, Valentina Antonaci, Leonardo Lamanna, Massimo De Vittorio, Dario Floreano, Mario Caironi   +8 more
wiley   +1 more source

Analysis of Measured and Simulated Supraglottal Acoustic Waves [PDF]

Journal of Voice, 2016
To date, although much attention has been paid to the estimation and modeling of the voice source (ie, the glottal airflow volume velocity), the measurement and characterization of the supraglottal pressure wave have been much less studied. Some previous results have unveiled that the supraglottal pressure wave has some spectral resonances similar to ...
Rubén Fraile, Vera V. Evdokimova, Karina V. Evgrafova, Juan I. Godino-Llorente, Pavel A. Skrelin   +4 more
openaire   +3 more sources

3D Hydrodynamic Flow Lithography

Advanced Functional Materials, EarlyView.
ABSTRACT Continuous‐ and stop‐flow lithography are widely used to fabricate multi‐dimensional microstructures whose cross‐sectional morphology is dictated by the flow profile of multiple co‐flowing streams. Here, we introduce three‐dimensional hydrodynamic flow lithography (3D HFL), a platform for programmable generation of multi‐layered flow profiles ...
Yiying Zou, Mehmet Akif Sahin, Muhammad Zia Ullah Khan, Muhammad Usman Akhtar, Daniel Stoecklein, Ghulam Destgeer   +5 more
wiley   +1 more source

Room-Acoustic Simulations as an Alternative to Measurements for Audio-Algorithm Evaluation

IEEE Access
Audio-signal-processing and audio-machine-learning (ASP/AML) algorithms are ubiquitous in modern technology like smart devices, wearables, and entertainment systems.
Georg Gotz, Daniel Gert Nielsen, Steinar Gudjonsson, Finnur Pind   +3 more
doaj   +1 more source