Results 41 to 50 of about 2,989,848 (224)

Animal-Borne Adaptive Acoustic Monitoring

open access: yesJournal of Sensor and Actuator Networks
Animal-borne acoustic sensors provide valuable insights into wildlife behavior and environments but face significant power and storage constraints that limit deployment duration.
Devin Jean   +5 more
doaj   +1 more source

Gradient‐Conductivity Architecture Enables Synchronous Enhancement of Sensitivity and Detection Range in Multifunctional All‐Paper Sensors

open access: yesAdvanced Functional Materials, EarlyView.
A gradient‐engineered all‐paper sensor is fabricated by integrating MXene and in situ grown AgNPs within hierarchical cellulose networks. The device breaks the sensitivity–detection range trade‐off through cascaded conductive pathways, enabling ultrahigh pressure sensitivity, humidity–pressure decoupled dual‐mode sensing, and outstanding EMI shielding,
Ao Li   +7 more
wiley   +1 more source

Automotive Diesel Engine Performance and Condition Monitoring using Downpipe Acoustic Waveform Analysis [PDF]

open access: yes, 2008
It would seem logical that acoustic signals measured from within a diesel engine’s exhaust pipe would contain useful information for engine monitoring.
Gu, Fengshou, Ball, Andrew, Jiang, Xiang
core   +4 more sources

Advances in Solution‐Processed Textile Triboelectric Nanogenerators: Ink Formation, Processing Strategies, Applications, and Challenges

open access: yesAdvanced Functional Materials, EarlyView.
Advanced ink systems for solution‐processed textile triboelectric nanogenerators are systematically summarized, spanning conductive, tribo‐negative, and tribo‐positive layers. By connecting ink chemistry, deposition methods, and device function, the present review reveals the key governing principles of solution development and highlights practical ...
Xinlong Sun, Stephen Beeby
wiley   +1 more source

Improved Entropy-Based Condition Monitoring for Pressure Pipeline Through Acoustic Denoising

open access: yesEntropy
During long-term operation in complex environments, the pressure pipeline systems are prone to damage and faults, and serious safety accidents may occur without real-time condition monitoring.
Yu Wan   +4 more
doaj   +1 more source

Mapping the Sound Environment of Andorra and Escaldes-Engordany by Means of a 3D City Model Platform

open access: yesUrban Science, 2019
In the new paradigm of the smart cities world, public opinion is one of the most important issues in the new conception of urban space and its corresponding regulations.
Rosa Ma Alsina-Pagès   +3 more
doaj   +1 more source

Hydrogel‐Based 3D‐Printed Anthropomorphic Breast Phantom for Emulating Mechanical and Dielectric Properties of Mammary Tissue. Applications in Microwave Imaging

open access: yesAdvanced Functional Materials, EarlyView.
A 3D‐printable breast phantom is developed using patient‐derived MRI data and hydrogels that replicate the dielectric properties of healthy and cancerous tissues. Mechanical and dielectric characterization confirm its suitability for microwave imaging.
Carlos M. Andreu   +5 more
wiley   +1 more source

Rwandan Farmers’ Perceptions of the Acoustic Environment and the Potential for Acoustic Monitoring

open access: yesAgriculture
Monitoring the farm acoustic environment can provide important information about processes affecting crop production. This paper assesses farmers’ knowledge and attitudes toward acoustic technology for farm monitoring in Rwanda.
Destiny Kwabla Amenyedzi   +6 more
doaj   +1 more source

Direction-of-arrival estimation of animal vocalizations for monitoring animal behavior and improving estimates of abundance

open access: yesAvian Conservation and Ecology, 2017
Autonomous recording units (ARUs) show promise for improving the spatial and temporal coverage of biodiversity monitoring programs, and for improving the resolution with which the behaviors of animals can be monitored on small spatial scales.
Richard W. Hedley, Yiwei Huang, Kung Yao
doaj   +1 more source

From Bulk to Colloidal Nanocrystals: Top‐Down Synthesis of Highly Luminescent Cs2ZrCl6:Te4+ Double Perovskite Nanocrystals for X‐Ray Imaging

open access: yesAdvanced Functional Materials, EarlyView.
Top‐down ultrasonication produces highly emissive Cs2ZrCl6:Te4+ nanocrystals (NCs) with a PLQY of 65%, which is higher compared to that of the NCs synthesized by typical bottom‐up hot‐injection synthesis. The colloidal Cs2ZrCl6:Te4+ NCs have been found to be potential candidates for x‐ray scintillation imaging.
Yang Liu   +12 more
wiley   +1 more source

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