Results 61 to 70 of about 786,196 (308)

Enhanced Ultrasound Transmission Through Aberration Layers Using Space‐Coiling Acoustic Metamaterials

open access: yesAdvanced Engineering Materials, EarlyView.
Enhancing ultrasound transmission through an aberration layer exhibiting mismatched impedance with the surrounding medium possesses great implications in imaging and treatment. In this study, we show that a space‐coiling acoustic metamaterial with judiciously tailored structural profile can help improve impedance matching.
Maral Ghanami   +4 more
wiley   +1 more source

Intermountain Acoustic Musician, Volume 3 Number 4, April 1986 [PDF]

open access: yes, 1986
Salt Lake City, UT: International Bluegrass Association; The Intermountain Acoustic Music Association is a member of the International Bluegrass Music Association and Folk Alliance, the North American folk music and dance alliance. Intermountain Acoustic
Intermountain Acoustic Music Association
core  

Adaptive Foam 3D Printing of Ultralight and Multifunctional Materials

open access: yesAdvanced Engineering Materials, EarlyView.
Adaptive foam 3D printing, enabled by expandable microspheres, imparts cellular structures to thermoplastic and thermosetting polymers, manufactured through a variety of processes including fused filament fabrication, direct ink writing, digital light processing, and inkjet printing.
Nariman Rajabifar, Amir Ameli
wiley   +1 more source

A fully automated framework for acoustic identification and localization of terrestrial wildlife at scale

open access: yesCommunications Biology
Autonomous acoustic recorders are increasingly important tools for monitoring sound-producing taxa. Coupled with advances in machine learning, they enable greater sampling effort and larger spatial and temporal scales than in-person surveys.
Louis Freeland-Haynes   +8 more
doaj   +1 more source

Acoustic Localization By Interaural Level Difference [PDF]

open access: yesProceedings. (ICASSP '05). IEEE International Conference on Acoustics, Speech, and Signal Processing, 2005., 2006
Interaural level difference (ILD) is an important cue for acoustic localization. Although its behavior has been studied extensively in natural systems, it remains an untapped resource for computer-based systems. We investigate the possibility of using ILD for acoustic localization, deriving constraints on the location of a sound source given the ...
Stanley T. Birchfield   +1 more
openaire   +1 more source

Intermountain Acoustic Musician, Volume 24 Number 6, June 2007 [PDF]

open access: yes, 2007
Salt Lake City, UT: International Bluegrass Association; The Intermountain Acoustic Music Association is a member of the International Bluegrass Music Association and Folk Alliance, the North American folk music and dance alliance. Intermountain Acoustic
Intermountain Acoustic Music Association
core  

Optical Signature of Moiré Superlattices Formed by Twisted SrTiO3 Membranes

open access: yesAdvanced Functional Materials, EarlyView.
We discover optical signatures from bonded interfaces in twisted SrTiO3 moiré superlattices, including low‐frequency Raman vibrational modes and strong second‐harmonic generation, consistent with strong interlayer coupling inferred from cross‐sectional electron microscopy and ab initio calculations. ABSTRACT Moiré superlattices formed at the interfaces
T. A. M. Ragib Shahriar   +13 more
wiley   +1 more source

Voronoi acoustic source localization mechanism based on counter captured time difference

open access: yesTongxin xuebao, 2013
An acoustic source localization protocol based on counter captured time difference was presented. It can drive the sensors in network to “sleep”in most of the time, so as to achieve energy saving obviously.
Na XIA   +4 more
doaj  

Intermountain Acoustic Musician, Volume 10 Number 1, January 1993 [PDF]

open access: yes, 1993
Salt Lake City, UT: International Bluegrass Association; The Intermountain Acoustic Music Association is a member of the International Bluegrass Music Association and Folk Alliance, the North American folk music and dance alliance. Intermountain Acoustic
Intermountain Acoustic Music Association
core  

Polymer Substrates for Flexible Sensors: Advances and Contributions to Smart Agriculture

open access: yesAdvanced Functional Materials, EarlyView.
This review comprehensively summarizes recent advances in polymer‐based flexible sensors for smart agriculture, focusing on polymer substrate design, interface engineering, and applications in soil, plant, animal, aquaculture, and post‐harvest monitoring.
Yihui Li   +12 more
wiley   +1 more source

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