Results 91 to 100 of about 5,216 (194)
Acoustic inversion of the cold water filaments off the Southwest coast of Portugal [PDF]
, 2007 Cold water filaments have important implications in the biological and chemical exchanges between the coastal and offshore ocean. The Cape São Vicente area in the Southwest coast of Portugal is a well know region where such phenomenon is observed.
Felisberto, P. +2 more
core +1 more source
Experimental Physiology, Volume 111, Issue 3, Page 765-785, 1 March 2026.Abstract High‐resolution movement data from Cuvier's beaked, or goose‐beaked whale (Ziphius cavirostris, hereafter Ziphius, n = 8) tag deployments (4.1–19.2 days) were used to estimate blood and tissue O2 and CO2 levels. Acceleration and magnetometry data were used to estimate the locomotion cost (LC) from the relationship between activity and the O2 ...
Andreas Fahlman +8 more
wiley +1 more source
A Bayesian approach for energy-based estimation of acoustic aberrations in high intensity focused ultrasound treatment [PDF]
, 2018 High intensity focused ultrasound is a non-invasive method for treatment of diseased tissue that uses a beam of ultrasound to generate heat within a small volume. A common challenge in application of this technique is that heterogeneity of the biological
Constanciel, Elodie +5 more
core +2 more sources
Denoising of MEMS Vector Hydrophone Signal Based on Empirical Model Wavelet Method
Proceedings, 2019 Underwater acoustic technology is a major method in current ocean research and exploration, which support the detection of seabed environment and marine life.
Huichao Yan, Linmei Zhang
doaj +1 more source
, 2012 Rep. 01/12 - SiPLAB 10/January/2012This internal report describes the C port of the gaussian beam raytracing model TRACEO.This work was funded by National Funds through FCTFoundation for Science and Technology under project SENSOCEAN (PTDC/EEA_ELC ...
Emanuel, E., Rodríguez, O. C.
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Analysis of a method for precisely relating a seafloor point to a distant point on land [PDF]
A study of the environmental constraints and engineering aspects of the acoustic portion of a system for making geodetic ties between undersea reference points and others on land is described.
Lowenstein, C. D. +2 more
core +1 more source
Journal of Marine Science and EngineeringIncreasing array gains is one of the keys to improving underwater targets’ detection capabilities. This paper presents a high-gain approach for a vector hydrophone vertical array (VHVA) that combines white noise gain constraint (WNGC) with vector joint ...
Yan Liang +3 more
doaj +1 more source
On the usage of the particle velocity field for bottom characterization [PDF]
, 2011 Vector sensors (VS) are devices that measure the vectorial particle velocity field. Compared with traditional hydrophone arrays that measure the acoustic pressure, systems based on VS present enhanced spatial filtering capabilities.
Felisberto, P. +3 more
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Short cavity DFB fiber laser based vector hydrophone for low frequency signal detection
Photonic Sensors, 2017 A short cavity distributed feedback (DFB) fiber laser is used for low frequency acoustic signal detection. Three DFB fiber lasers with different central wavelengths are chained together to make three-element vector hydrophone with proper sensitivity ...
Xiaolei Zhang +7 more
doaj +1 more source
Inversion of acoustical data from the SW06 experiment, using a statistical method for signal characterization [PDF]
, 2013 his paper presents an application of an acoustic signal characterization scheme for ocean acoustic tomography and geoacoustic inversions proposed by Taroudakis et al., using real data.
Chapman, Ross +2 more
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