Results 251 to 260 of about 4,862,994 (312)

Lightweight Machine Learning Framework for Cavitation Detection in Submersible Pumps Using Experimental Multi-Sensor Data. [PDF]

Sensors (Basel)
Celtek SA, Sattuf S, Shahnia F, Orhan N.
europepmc   +1 more source

Linking ISO Dynamic Stiffness and Acoustic Modal Identification for FEM-Oriented Modelling of Elasticized Expanded Polystyrene. [PDF]

Materials (Basel)
Nering K, Nering K, Kozak-Jagieła E.
europepmc   +1 more source

Design and Sound Absorption Characteristics of a Broadband Acoustic Absorber for Transformer Noise Control Based on a Composite Structure of Traditional and Side-Slit Helmholtz Resonators. [PDF]

Materials (Basel)
Zhao L, Yang G.
europepmc   +1 more source

Design and Validation of a PU-Six-Cavity Helmholtz Metamaterial Composite Acoustic Package for Broadband Noise Reduction in Commercial Vehicle Cabs. [PDF]

Materials (Basel)
Cai C, Duan Y, Wang T, Wang A, Wang X, Shi Y, Xiao X, Huang Y.   +7 more
europepmc   +1 more source

Short-Term Voice Changes After Endotracheal Intubation: Comparative Study of Head/Neck and Abdominal Surgery. [PDF]

J Clin Med
Šimić Prgomet I, Curić Radivojević R, Augustin G, Prgomet D.   +3 more
europepmc   +1 more source

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ACOUSTICAL ROAD PARAMETERS IDENTIFICATION

8th European Conference on Noise Control 2009, 2023
Many impedance models can be used for describing the acoustical behaviour of a road. These models rely on some intrinsic parameters (2,3 or 4), which are difficult to measure in the field. Therefore, the measurement of these parameters usually requires to destroy the structure.
Heinkele, Christophe, Golay, Francis, Dutilleux, Guillaume   +2 more
openaire   +2 more sources

Acoustic parameters of ocular tissues

Ultrasound in Medicine & Biology, 1985
The sound velocity and the impedance of animal eyes and human eyes are measured by high frequency RF echograms (10 MHz) using a digital computer. The results are compared to literature data from 1955 to 1965, which were obtained with completely different techniques.
J M, Thijssen, H J, Mol, M R, Timmer
openaire   +2 more sources

Acoustic Parameters of Personality

The Journal of the Acoustical Society of America, 1972
Twenty-four adult males of diverse socioeconomic background were recorded as they recited a standard passage. They also recited the same passage while pretending to be excited and pretending to be depressed. The normal passages were analyzed and then synthesized by means of a terminal analog synthesizer, and then again synthesized in the following ...
B. L. Brown, W. J. Strong, A. C. Rencher
openaire   +1 more source

Effective Parameters of Acoustic Metamaterials

Russian Physics Journal, 2018
Analytical expressions are presented for the wave number, the characteristic wave impedance, and the refractive index of homogeneous longitudinal plane waves propagating in an acoustic metamaterial with dissipative losses. The metamaterial is characterized by the effective scalar material parameters: the complex density and the compressibility.
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Extracting the intrinsic geo-acoustic parameters from the effective geo-acoustic parameters

The Journal of the Acoustical Society of America, 2018
So far, most of the geoacoustic (GA) parameters are inverted through model-based approaches. The inverted GA parameters are not the intrinsic ones but the so-called “effective” ones. The “effective” GA parameters are model and frequency dependent and will be distorted due to model-mismatching.
Juan Zeng, Z. D. Zhao, Li Ma, E. C. Shang   +3 more
openaire   +1 more source