Results 11 to 20 of about 63,730 (262)

Rock burst risk assessment of working face during open-off cut based on acoustic emission monitoring

open access: yesMeikuang Anquan, 2021
Impact risk assessment is a work that must be carried out in driving and stoping stage in mining coal seam with impact risk to ensure the safety of driving and stoping working face.
XING Linnan
doaj   +1 more source

Effectiveness of acoustic indices as indicators of vertebrate biodiversity

open access: yesEcological Indicators, 2023
Effective monitoring tools are key for tracking biodiversity loss and informing management intervention strategies. Passive acoustic monitoring promises to provide a cheap and effective way to monitor biodiversity across large spatial and temporal scales,
Slade Allen-Ankins   +8 more
doaj   +1 more source

Will passive acoustic monitoring make result‐based payments more attractive? A cost comparison with human observation for farmland bird monitoring

open access: yesConservation Science and Practice, 2023
Result‐based payments (RBPs) reward land users for conservation outcomes and are a promising alternative to standard payments, which are targeted at specific land use measures.
Nonka Markova‐Nenova   +3 more
doaj   +1 more source

Community Bioacoustics: Studying Acoustic Community Structure for Ecological and Conservation Insights

open access: yesFrontiers in Ecology and Evolution, 2021
The diversity of animal acoustic signals has evolved due to multiple ecological processes, both biotic and abiotic. At the level of communities of signaling animals, these processes may lead to diverse outcomes, including partitioning of acoustic signals
Vaibhav Chhaya   +5 more
doaj   +1 more source

Underwater Radiated Noise Prediction Method of Cabin Structures under Hybrid Excitation

open access: yesApplied Sciences, 2023
Aiming at the engineering limitations of traditional ship vibration online monitoring and noise prediction methods, this paper proposes a method for online monitoring and underwater radiation noise prediction of cabin structures’ vibration and noise ...
Qiang Guo   +3 more
doaj   +1 more source

Testing the efficiency of passive acoustic monitoring and active monitoring in anuran community in lotic environments in Itinguçu State Park, Peruíbe-SP [PDF]

open access: yesAnais da Academia Brasileira de Ciências
The following work presents the first study applying the passive acoustic monitoring of anurans at lotic environments for a long time. This study aims to test the efficiency of the passive acoustic monitoring method and active monitoring in detecting ...
ISABEL G. VELASCO, IVAN NUNES
doaj   +1 more source

Acoustic-Based Machine Condition Monitoring—Methods and Challenges

open access: yesEng, 2023
The traditional means of monitoring the health of industrial systems involves the use of vibration and performance monitoring techniques amongst others.
Gbanaibolou Jombo, Yu Zhang
doaj   +1 more source

Acoustic monitoring – super sonics? [PDF]

open access: yesCritical Care, 2009
Vesicular breath sounds, wheezes, rhonchi, and crackles possess acoustic 'signatures' amenable to detection, quantification, and moment-by-moment visual display. Despite technical hurdles, new methods for sonic evaluation, once perfected, should offer innovative diagnostic and monitoring tools that add clinical value.
openaire   +2 more sources

Acoustic Wake-Up Technology for Microsystems: A Review

open access: yesMicromachines, 2023
Microsystems with capabilities of acoustic signal perception and recognition are widely used in unattended monitoring applications. In order to realize long-term and large-scale monitoring, microsystems with ultra-low power consumption are always ...
Deng Yang, Jiahao Zhao
doaj   +1 more source

Acoustic monitoring of beams. [PDF]

open access: yesThe Journal of the Acoustical Society of America, 1991
The vibrations of a beam can be used to monitor its structural integrity. For example, this technique could be used to monitor the health of a space platform, which is essentially a three-dimensional truss made of several beams. The impulse response of a beam with and without a crack is calculated using a numerical method, to determine the eigenmodes ...
Xiuting Cheng, Robert D. Finch
openaire   +1 more source

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