Results 71 to 80 of about 319,219 (328)

Antarctic marine mammals and ocean acoustics [PDF]

open access: yes, 2006
Marine mammals rely on sound and hearing as their primary means of communication and sensing their world. Concerns that anthropogenic sound in the ocean could infer their sensing, cause stress or even damage their hearing physically rose a controversial ...
Boebel, Olaf   +5 more
core  

Simultaneous realization of slow and fast acoustic waves using a fractal structure of Koch curve

open access: yesScientific Reports, 2018
An acoustic metamaterial based on a fractal structure, the Koch curve, is designed to simultaneously realize slow and fast acoustic waves. Owing to the multiple transmitting paths in the structure resembling the Koch curve, the acoustic waves travelling ...
Jin Ding   +4 more
doaj   +1 more source

Reconfigurable Magnetic Soft Microrobot for Acoustically Triggered Targeted Bacterial Sterilization

open access: yesAdvanced Functional Materials, EarlyView.
Reconfigurable magnetic soft microrobots integrate in situ‐grown piezoelectric zinc oxide nanorods that produce reactive oxygen species upon acoustic excitation. Combining magnetically guided transport with thermally induced planar reconfiguration, the microrobots achieve targeted delivery and enhanced bacterial sterilization through efficient on ...
Quan Gao   +12 more
wiley   +1 more source

Wind turbine acoustics [PDF]

open access: yes
Available information on the physical characteristics of the noise generated by wind turbines is summarized, with example sound pressure time histories, narrow- and broadband frequency spectra, and noise radiation patterns. Reviewed are noise measurement
Hubbard, Harvey H., Shepherd, Kevin P.
core   +1 more source

Integration of technologies for understanding the functional relationship between reef habitat and fish growth and production [PDF]

open access: yes, 2006
Functional linkage between reef habitat quality and fish growth and production has remained elusive. Most current research is focused on correlative relationships between a general habitat type and presence/absence of a species, an index of species ...
Butler, Mark   +5 more
core  

Virtual Acoustics

open access: yesArchives of Acoustics, 2014
Virtual Reality (VR) systems are used in engineering, architecture, design and in applications of biomedical research. The component of acoustics in such VR systems enables the creation of audio-visual stimuli for applications in room acoustics, building
Michael VORLÄNDER
doaj   +1 more source

Spectrally Tunable 2D Material‐Based Infrared Photodetectors for Intelligent Optoelectronics

open access: yesAdvanced Functional Materials, EarlyView.
Intelligent optoelectronics through spectral engineering of 2D material‐based infrared photodetectors. Abstract The evolution of intelligent optoelectronic systems is driven by artificial intelligence (AI). However, their practical realization hinges on the ability to dynamically capture and process optical signals across a broad infrared (IR) spectrum.
Junheon Ha   +18 more
wiley   +1 more source

Erratum

open access: yesArchives of Acoustics
Erratum for: – An experimental lithotripsy system for the study of shock wave effects (L. FILIPCZYŃSKI, J. ETIENNE, A. GRABOWSKA, T. WASZCZUK, H. KOWALSKI, M. GRYZINSKI, J. STANISŁAWSKI) – Acoustical shadow of a sphere immersed in water.
Editorial Board Archives of Acoustics
doaj   +4 more sources

Shannon Entropy as Characterization Tool in Acoustics

open access: yes, 2007
We introduce Shannon's information entropy to characterize the avoided crossing appearing in the resonant Zener-like phenomenon in ultrasonic superlattices made of two different fluidlike meta- materials.
Sanchez-Dehesa, Jose   +1 more
core   +1 more source

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