Results 31 to 40 of about 786,196 (308)

Development of double nearfield acoustic holography method (Basic experimental results)

open access: yesNihon Kikai Gakkai ronbunshu, 2019
There are several types of sound localization methods. In middle frequency around 1kHz, these methods are effective to detect the sound source location.
Masao NAGAMATSU
doaj   +1 more source

Fusion guiding technology solution and algorithm for underwater docking of autonomous underwater vehicles

open access: yesZhongguo Jianchuan Yanjiu, 2022
ObjectiveTo address the problem of underwater autonomous vehicles (AUVs) docking with parent vessels in recovery operations, a mobile platform-oriented AUV underwater guiding solution is proposed on the basis of multi-sources information fusion ...
Rui ZHAO, Jian XU
doaj   +1 more source

In-Head Localization of Acoustic Images [PDF]

open access: yesThe Journal of the Acoustical Society of America, 1967
Listeners placed in an acoustically and visually neutral environment were required to localize sounds presented by means of loudspeakers. Convincing in-head and external image localizations were observed separately and in combination. The amount of in-head localization was found to change substantially and systematically with changes in signal ...
openaire   +2 more sources

Synthetic Aperture Computation as the Head is Turned in Binaural Direction Finding

open access: yesRobotics, 2017
Binaural systems measure instantaneous time/level differences between acoustic signals received at the ears to determine angles λ between the auditory axis and directions to acoustic sources.
Duncan Tamsett
doaj   +1 more source

Acoustic Enhanced Camera Tracking System Based on Small-Aperture MEMS Microphone Array

open access: yesIEEE Access, 2020
The camera tracking systems based on visual image processing face a problem that they are completely ineffective in their blind zones. To address this problem, a design of acoustic enhanced tracking system combining visual and auditory target tracking ...
Lei Li   +5 more
doaj   +1 more source

History of acoustic beamforming [PDF]

open access: yes, 2006
The development of the beamforming method (also called microphone antenna, phased array of microphones, acoustic telescope, or acoustic camera) is reviewed in this paper.
Michel, U., Ulf Michel
core  

Air‐Pressure–Actuated Vibroacoustic Metamaterial With Tunable Bandgap: Design, Modeling, and Characterization

open access: yesAdvanced Engineering Materials, EarlyView.
This article presents the design, modeling, and characterization of air‐pressure–actuated programmable vibroacoustic metamaterials (PVAMM). The study focuses on leveraging air pressure to dynamically tune resonance frequencies for effective noise attenuation.
William Kaal   +2 more
wiley   +1 more source

Localizing wild chimpanzees with passive acoustics

open access: yesEcology and Evolution, 2022
Abstract Localizing wildlife contributes in multiple ways to species conservation. Data on animal locations can reveal elements of social behavior, habitat use, population dynamics, and be useful in calculating population density. Acoustic localization systems (ALS) are a non‐invasive method widely used in the marine sciences but not well established
Anne‐Sophie Crunchant   +2 more
openaire   +4 more sources

The Study of Acoustic Source Localization using a Small Microphone Array for Condition Monitoring [PDF]

open access: yes, 2010
The aim of this research is to investigate microphone array techniques based condition monitoring (CM). In this paper, a cost effective microphone array configured with 4-sensors and data acquisition systems is investigated theoretically and ...
Gu, Fengshou, Ball, Andrew, Zhen, Dong
core  

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

Home - About - Disclaimer - Privacy