Search Results - "Matt, Silvia"
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Marine Bioluminescence: Simulation of Dynamics within a Pump-Through Bathyphotometer
Published in Sensors (Basel, Switzerland) (19-03-2024)“…Bioluminescence is light produced by organisms through chemical reactions. In most cases, bioluminescent organisms produce light in response to mechanical…”
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Effects of Optical Turbulence and Density Gradients on Particle Image Velocimetry
Published in Scientific reports (07-02-2020)“…Particle image velocimetry (PIV) is a well-established tool to collect high-resolution velocity and turbulence data in the laboratory, in both air and water…”
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Surfactant-associated bacteria in the near-surface layer of the ocean
Published in Scientific reports (12-01-2016)“…Certain marine bacteria found in the near-surface layer of the ocean are expected to play important roles in the production and decay of surface active…”
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Three-Dimensional Dynamics of Freshwater Lenses in the Ocean's Near-Surface Layer
Published in Oceanography (Washington, D.C.) (01-03-2015)“…Convective rains in the Intertropical Convergence Zone produce lenses of freshened water on the ocean surface. Due to significant density differences between…”
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Air-sea interface in hurricane conditions
Published in Journal of Geophysical Research: Oceans (01-11-2012)“…Improving hurricane prediction models requires better understanding of complex processes taking place at the air‐sea interface at high wind speeds. The change…”
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Imitating dolphins: Nature-inspired boundary modulation to reduce frictional drag
Published in 2023 IEEE Underwater Technology (UT) (06-03-2023)“…In recent years, there has been a renewed interest in mechanisms of flow and turbulence control inspired by aquatic animals. This includes passive mechanisms…”
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Conference Proceeding -
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A reduction in near-field hydroacoustic flow noise using shark skin-inspired surfaces
Published in The Journal of the Acoustical Society of America (01-03-2024)“…Recent studies have demonstrated improved hydrodynamic performance for hydrofoils and uncrewed underwater vehicles (UUVs) using passive surface geometries such…”
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Viscous and turbulent stress measurements above and below laboratory wind waves
Published in Experiments in fluids (01-12-2024)“…The influence of wind stress, wind drift, and wind-wave (microscale) breaking on the coupled air–sea boundary layer is poorly understood. We performed…”
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Introducing SiTTE: A controlled laboratory setting to study the impact of turbulent fluctuations on light propagation in the underwater environment
Published in Optics express (06-03-2017)“…Small-scale spatial variation in temperature can lead to localized changes in the index of refraction and can distort electro-optical (EO) signal transmission…”
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EO signal propagation in a simulated underwater turbulence environment
Published in OCEANS 2014 - TAIPEI (01-04-2014)“…Underwater electro-optical, or EO, transmission is a function of medium properties and constituents within. While the majority of the research focus has been…”
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Conference Proceeding -
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A novel platform to study the effect of small-scale turbulent density fluctuations on underwater imaging in the ocean
Published in Methods in oceanography (Oxford) (01-12-2014)“…Optical signal transmission is an important component of numerous underwater applications, including visibility and electro-optical (EO) communication. In…”
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Model for the structure function constant for index of refraction fluctuations in Rayleigh-Benard turbulence
Published 30-10-2023“…A model for the structure function constant associated with index of refraction fluctuations in Rayleigh-Benard turbulence is developed. The model is based…”
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High resolution simulation of high Reynolds number mixing in a 2D gravity current under variable forcing
Published 01-01-2010“…We investigate the impact of high-frequency variability in forcing on the dynamics of a density current using a high-order non-hydrostatic spectral element…”
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Dissertation -
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High resolution simulation of high Reynolds number mixing in a 2D gravity current under variable forcing
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Dissertation -
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Turbulent kinetic energy and temperature variance dissipation in laboratory generated Rayleigh-Bénard turbulence designed to study the distortion of light by underwater microstructure fluctuations
Published in 2015 IEEE/OES Eleveth Current, Waves and Turbulence Measurement (CWTM) (01-03-2015)“…Small-scale variation in temperature and salinity can lead to localized changes in the index of refraction and can distort electro-optical (EO) signal…”
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Conference Proceeding Journal Article -
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The impact of thermal stratification and wind stress on sea surface features in SAR imagery
Published in 2011 IEEE International Geoscience and Remote Sensing Symposium (01-07-2011)“…We have conducted high-resolution numerical experiments with the computational fluid dynamics (CFD) software ANSYS FLUENT on the dynamics of centerline ship…”
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Conference Proceeding -
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Observation of natural and artificial features on the sea surface from SAR satellite imagery with in-situ measurements
Published in 2011 IEEE International Geoscience and Remote Sensing Symposium (01-07-2011)“…In this paper, several examples of synthetic aperture radar images of the sea surface from TerraSAR-X and RADARSAT-2 in the Straits of Florida are examined…”
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Conference Proceeding -
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Fine structure of the upper ocean from high-resolution Terrasar-X imagery and In-Situ measurements
Published in 2010 IEEE International Geoscience and Remote Sensing Symposium (01-07-2010)“…We investigate small-scale features using SAR imagery, including sharp frontal interfaces, slicks of artificial and natural origin, and wakes of surface ships…”
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Conference Proceeding