Results 21 to 30 of about 63,730 (262)

Acoustic Monitoring of Intraoperative Neuromuscular Block

open access: yesSurvey of Anesthesiology, 1999
Standard methods for accurate intraoperative measurement of neuromuscular block are either expensive or inconvenient and are not used widely. We have evaluated a new method of monitoring neuromuscular block using a low-frequency microphone. The method is based on the phenomenon of low-frequency sound emission by contracting skeletal muscle.
A, Dascalu   +5 more
openaire   +2 more sources

In-situ monitoring of sub-surface and internal defects in additive manufacturing: A review

open access: yesMaterials & Design, 2022
Additive Manufacturing (AM), or 3D printing, processes depend on a user-defined set of optimized process parameters to create a component. Monitoring and control of AM processes in real-time can help achieve process stability and repeatability to produce
Youssef AbouelNour, Nikhil Gupta
doaj   +1 more source

Underwater Soundscape Monitoring and Fish Bioacoustics: A Review

open access: yesFishes, 2018
Soundscape ecology is a rapidly growing field with approximately 93% of all scientific articles on this topic having been published since 2010 (total about 610 publications since 1985).
Adelaide V. Lindseth, Phillip S. Lobel
doaj   +1 more source

A new method employing species‐specific thresholding identifies acoustically overlapping bats

open access: yesEcosphere, 2022
Passive acoustic detectors are increasingly used for monitoring biodiversity, particularly for echolocating bat species (Microchiroptera). However, identification of calls collected at large scales is hindered by substantial variation within and between ...
Amanda Lo Cascio   +2 more
doaj   +1 more source

Shifts in acoustic signature of Southern Hemisphere fin whales: Declining peak frequency of high-frequency components [PDF]

open access: yesJASA Express Letters
Population-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

Feasibility of Acoustic Print Head Monitoring for Binder Jetting Processes with Artificial Neural Networks

open access: yesApplied Sciences, 2021
The clogging of piezoelectric nozzles is a typical problem in various additive binder jetting processes, such as the manufacturing of casting molds. This work aims at print head monitoring in these binder jetting processes.
Philipp Lechner   +6 more
doaj   +1 more source

Acoustic deterrence to facilitate the conservation of pantropical spotted dolphins (Stenella attenuata) in the Western Pacific Ocean

open access: yesFrontiers 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

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

Multimodal Data‐Driven Microstructure Characterization

open access: yesAdvanced 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

Monitoring Grassland Bird Communities with Acoustic Indices

open access: yesBirds
Several 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

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