Results 121 to 130 of about 127,881 (313)

Experimental investigation of the meteorologically influenced sound propagation through an inhomogeneous forest site

Meteorologische Zeitschrift, 2013
The low-frequency sound propagation was investigated at a clearing and an adjacent forest stand at the meteorological Anchor Station Tharandter Wald near Dresden (Germany) using measurements and simple models.
Astrid Ziemann, Manuela Barth, Markus Hehn   +2 more
doaj   +1 more source

Mechanisms of ultrasonic de-agglomeration of oxides through in-situ high-speed observations and acoustic measurements. [PDF]

Ultrason Sonochem, 2021
Priyadarshi A, Khavari M, Subroto T, Prentice P, Pericleous K, Eskin D, Durodola J, Tzanakis I.   +7 more
europepmc   +1 more source

End‐to‐End Sensing Systems for Breast Cancer: From Wearables for Early Detection to Lab‐Based Diagnosis Chips

Advanced Materials Technologies, EarlyView.
This review explores advances in wearable and lab‐on‐chip technologies for breast cancer detection. Covering tactile, thermal, ultrasound, microwave, electrical impedance tomography, electrochemical, microelectromechanical, and optical systems, it highlights innovations in flexible electronics, nanomaterials, and machine learning.
Neshika Wijewardhane, Lyn I. Jones, Richard M. Martin, Helen Winter, Faezeh Arab Hassani   +4 more
wiley   +1 more source

Pulsed magneto-acoustic emission sensor array for stress measurement and material.’characterisation

, 2006
This paper introduces a new method of pulsed magnetic acoustic emission (MAE) for stress detection and material characterisation and investigates the viability of implementing an acoustic emission sensor array for enhanced location information and ...
Tian, Gui Yun, Wilson, J.
core  

Transducers Across Scales and Frequencies: A System‐Level Framework for Multiphysics Integration and Co‐Design

Advanced Materials Technologies, EarlyView.
Transducers convert physical signals into electrical and optical representations, yet each mechanism is bounded by intrinsic trade‐offs across bandwidth, sensitivity, speed, and energy. This review maps transduction mechanisms across physical scale and frequency, showing how heterogeneous integration and multiphysics co‐design transform isolated ...
Aolei Xu, Mengyao Xiao, Zhouli Sui, Yinpeng Wang, Daoye Zheng, Yuxin Liu, Luwei Wang, Huajun Liu, Chengkuo Lee   +8 more
wiley   +1 more source

Relating Geotechnical Sediment Properties and Low Frequency CHIRP Sonar Measurements

Remote Sensing
Low frequency acoustic methods are a common tool for seabed stratigraphy mapping. Due to the efficiency in seabed mapping compared to geotechnical methods, estimating geotechnical sediment properties from acoustic surveying is attractive for many ...
Reem Jaber, Nina Stark, Rodrigo Sarlo, Jesse E. McNinch, Grace Massey   +4 more
doaj   +1 more source

A Novel Accelerometer Mounting Method for Sensing Performance Improvement in Acoustic Measurements From the Knee. [PDF]

J Vib Acoust, 2021
Ozmen GC, Safaei M, Lan L, Inan OT.
europepmc   +1 more source

Characterization of Droplet Formation in Ultrasonic Spray Coating: Influence of Ink Formulation Using Phase Doppler Anemometry and Machine Learning

Advanced Materials Technologies, EarlyView.
This study explores how machine learning models, trained on small experimental datasets obtained via Phase Doppler Anemometry (PDA), can accurately predict droplet size (D32) in ultrasonic spray coating (USSC). By capturing the influence of ink complexity (solvent, polymer, nanoparticles), power, and flow rate, the model enables precise droplet control
Pieter Verding, Danny E. P. Vanpoucke, Yunus T. Aksoy, Tobias Corthouts, Maria R. Vetrano, Wim Deferme   +5 more
wiley   +1 more source

Acoustic measurements

, 2011
Peer ...
Cadena Muñoz, Francisco Javier, Vidal Oliveras, Neus, Garcia Benadí, Albert   +2 more
openaire   +1 more source

Benchmarking Coaxial and Angular Optical Emission Spectroscopy With Recommendations for Reliable Compositional In Situ Monitoring During Laser Powder Bed Fusion

Advanced Materials Technologies, EarlyView.
ABSTRACT Real‐time insight into local chemistry is critical for reliable part quality in additive manufacturing, especially laser powder bed fusion (PBF‑LB/M), where rapid thermal cycles and localized evaporation can undermine part performance. Optical emission spectroscopy (OES) offers non‑intrusive, in situ plume monitoring, but detection geometry ...
Philipp Gabriel, Bastian Jülich, Anna Rosa Ziefuss, Florian Eibl, Stephan Barcikowski   +4 more
wiley   +1 more source