Results 21 to 30 of about 1,805,737 (314)

Aerothermoelastic-Acoustics Simulation of Flight Vehicles [PDF]

open access: yesAIAA Journal, 2017
This paper describes a novel computational-fluid-dynamics-based numerical solution procedure for effective simulation of aerothermoacoustics problems with application to aerospace vehicles. A finite element idealization is employed for both fluid and structure domains, which fully accounts for thermal effects.
K K, Gupta   +3 more
openaire   +2 more sources

All-pass phase shifting achieved by acoustic unidirectional guided resonances

open access: yesApplied Physics Express, 2023
Phase manipulation of sound is an important function for many acoustic applications. Here, we apply temporal coupled mode theory to demonstrate that sound all-pass phase shifting, which means that acoustic waves propagate with unit amplitude but have ...
Heyi Li   +4 more
doaj   +1 more source

Multifrequency simulation for acoustics

open access: yesApplied Mathematics Letters, 1997
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Kim, S., Symes, W.W.
openaire   +2 more sources

Acoustic Competition for the Golden Medal of Crowd Noise Level: Insights on the Stadia and Sport Buildings in Ancient Times

open access: yesApplied Sciences
Ancient stadia and circuses were considered by Greeks and Romans to be excellent places for live events. Back in ancient times, many people participated in public entertainment from athletic games, as typical of Greek traditions, to combats between ...
Antonella Bevilacqua   +2 more
doaj   +1 more source

Acoustic Shell Optimization in Opera Houses for Concert Halls

open access: yesApplied Sciences
Opera houses are often used as concert halls with the use of a temporary acoustic shell set on stage. In most cases, the shell shape and its position in the fly tower are decided by theatre technicians, after evaluating the concert programme and ...
Umberto Derme   +2 more
doaj   +1 more source

Homogeneous material based acoustic concentrators and rotators with linear coordinate transformation

open access: yesScientific Reports, 2021
With the ability to focus and rotate the acoustic field in a given region while keeping the outside region unchanged, the acoustic concentrator and rotator has been developed for the versatile manipulations of acoustic wave. In this letter, we report the
Huaping Wang   +4 more
doaj   +1 more source

A head template for computational dose modelling for transcranial focused ultrasound stimulation

open access: yesNeuroImage, 2023
Transcranial focused Ultrasound Stimulation (TUS) at low intensities is emerging as a novel non-invasive brain stimulation method with higher spatial resolution than established transcranial stimulation methods and the ability to selectively stimulate ...
Seyedsina Hosseini   +4 more
doaj   +1 more source

Karl Popper and the Mechanisms of Hydrogen Embrittlement

open access: yesAdvanced 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
wiley   +1 more source

Isogeometric simulation of acoustic radiation

open access: yesMathematics and Computers in Simulation
20 pages, 8 ...
Victoria Hernández Mederos   +4 more
openaire   +4 more sources

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

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