Shifts in acoustic signature of Southern Hemisphere fin whales: Declining peak frequency of high-frequency components [PDF]
JASA Express LettersPopulation-specific acoustic features are vital for using passive acoustic monitoring to study marine mammal populations in remote regions. Southern Hemisphere fin whale (Balaenoptera physalus) songs include region-specific high-frequency components ...
Svenja Wöhle +4 more
doaj +1 more source
Frontiers in Marine Science, 2022 Commercial fishing constitutes an important food source but induces undesirable bycatch on animals worldwide. This study extends bycatch research geographically to the Western Pacific Ocean, filling a knowledge gap regarding bycatch and mitigation ...
Weijie Fu +10 more
doaj +1 more source
Acoustical system monitoring in complex acoustic environments
2019 2nd International Colloquium on Smart Grid Metrology (SMAGRIMET), 2019 This paper investigates the impact of room acoustics and background noise on acoustical monitoring of the desired sound source and in addition, if already known room acoustics parameters can be used to increase robustness of such monitoring system.
Bogdanić, Lovre, Suhanek, Mia
openaire +3 more sources
Karl Popper and the Mechanisms of Hydrogen Embrittlement
Advanced 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
Development of acoustic emission technology for condition monitoring and diagnosis of rotating machines: bearings, pumps, gearboxes, engines, and rotating structures [PDF]
, 2006 Proof pdf available on ResearchGate (2nd May 2015 uploaded by David Mba)One of the earliest documented applications of Acoustic Emission Technology (AET) to rotating machinery monitoring was in the late 1960s.
Mba, David, Rao, Raj B. K. N.
core
Research and Experimentation on Acoustic Monitoring Technology for Laser Drilling Penetration. [PDF]
Micromachines (Basel)To prevent back wall damage in cavity workpieces during laser drilling, it is crucial to monitor hole penetration status in real time. This study proposes a laser drilling penetration monitoring method based on acoustic principles.
Lian B +5 more
europepmc +2 more sources
Multimodal Data‐Driven Microstructure Characterization
Advanced 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
Observations of acoustic emission activity during gear defect diagnosis. [PDF]
, 2003 It is widely recognised that acoustic emission (AE) is gaining ground as a non- destructive technique (NDT) for health diagnosis on rotating machinery.
Mba, David +3 more
core +1 more source
Monitoring Grassland Bird Communities with Acoustic Indices
BirdsSeveral researchers have tried to find relationships between acoustic indices and vocal animal communities to use acoustic indices as a passive monitoring method, as human-derived surveys are expensive, time-consuming, and suffer from observer bias ...
Bethany L. Ostrom +2 more
doaj +1 more source
Current Status and Challenges in Data Collection for Aerospace Coatings Deposited by Plasma Spraying
Advanced Engineering Materials, EarlyView.An innovative approach has been integrated into the GRENAT project to optimize plasma spraying and coating performance. Raw materials are accelerated and melted in the plasma generated by torches, creating coatings. Monitoring sensors collect process data which are combined with ex situ characterization data.
Lila Randriamananjara +8 more
wiley +1 more source