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echo sounder

Synthetic aperture technique applied to a multi beam echo sounder

Synthetic aperture technique applied to a multi beam echo sounder

... straight line should be less than one degree for the period of five contiguous pings, although a small curve of the ship’s course may be acceptable. We conducted the first sea test to confirm that this requirement was ...

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Effects of a scientific echo sounder on the behavior of short finned pilot whales (Globicephala macrorhynchus)

Effects of a scientific echo sounder on the behavior of short finned pilot whales (Globicephala macrorhynchus)

... Keywords: Echo sounder, Pilot whales, Behavioral Response, hidden Markov model, GEE... Increasing levels of anthropogenic noise in the marine environment represent a significant challeng[r] ...

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Bathymetry Mapping and morphometric characteristics demarcation of Lake Manasbal, Kashmir valley, India using Echo Sounder and Geospatial Technology

Bathymetry Mapping and morphometric characteristics demarcation of Lake Manasbal, Kashmir valley, India using Echo Sounder and Geospatial Technology

... Garmin Echo sounder which records the geocoordinates along with depth of the ...the Echo sounders are fitted over the boat and have been driven at constant ...

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Precision echo sounder tracker

Precision echo sounder tracker

... the depth entered flag DPENFG or the time entered flag TMENFG are non-zero then the contents of DATA2, the entry register, are converted to ASCII and transmitted back to PEST... the time[r] ...

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Deep Western Boundary Current transport variability in the South

Deep Western Boundary Current transport variability in the South

... inverted echo sounder (PIES) moorings have been used to provide a first glimpse at the time-varying abso- lute flow of the Deep Western Boundary Current (DWBC) at ...

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Acoustic mapping of mixed layer depth

Acoustic mapping of mixed layer depth

... wideband echo sounders have made it possible to map density stratification in the ...downward-looking echo sounder (leading to a weaker scat- ter strength), this is compensated for by generally ...

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A comparison of depth sounder positioning techniques for hydrographic/bathymetric surveys

A comparison of depth sounder positioning techniques for hydrographic/bathymetric surveys

... the Echo Sounder a CSV with Depth and elevation was produced, for the RTK survey a CSV with XYZ was produced to allow for Post Processed depths to be applied, and finally a CSV with Time Stamp was used to ...

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Geological insights from Malaysia Airlines Flight MH370 search

Geological insights from Malaysia Airlines Flight MH370 search

... Multibeam echo sounder bathymetry map of two regions of the ocean floor around the Geelvinck Fracture Zone in the Australian-Antarctic Basin south of Broken Ridge (see Figure 1 for ...

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RRS "Discovery" Cruise 40, 19 June   26 July 1971: Geological exploration of the Mediterranean Ridge

RRS "Discovery" Cruise 40, 19 June 26 July 1971: Geological exploration of the Mediterranean Ridge

... b Narrow Beam Echo-sounder Profiles The side-scan asdic equipment was used as a narrow beam sounder 11 ° x 2^° in order to obtain detail about the sea floor relief, particularly of the M[r] ...

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Rapid marine deglaciation: asynchronous retreat dynamics between the Irish Sea Ice Stream and terrestrial outlet glaciers

Rapid marine deglaciation: asynchronous retreat dynamics between the Irish Sea Ice Stream and terrestrial outlet glaciers

... High-resolution bathymetric data covering 270 km 2 of Tremadog Bay were collected using a multibeam echo- sounder during 2006 as part of the UK Civil Hydrography Programme co-ordinated by the Maritime and ...

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Turbulence and hypoxia contribute to dense biological scattering layers in a Patagonian fjord system

Turbulence and hypoxia contribute to dense biological scattering layers in a Patagonian fjord system

... scientific echo-sounder transects and in situ plankton abundance measurements were used to study macrozooplankton assemblages and migration patterns along Puyuhuapi Fjord and Jacaf Channel in Chilean ...

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Development and initial testing of an autonomous surface vehicle for 
		shallow water mapping

Development and initial testing of an autonomous surface vehicle for shallow water mapping

... with echo sounder and water probes installation provide the solution for bathymetry data collection especially in the shallow and tight area with low operation ...

6

Dear Editor in Chief:

Dear Editor in Chief:

... gradient-recall echo im- aging, as related to the demonstration of paramag- netic brain lesions, is ...dient-recall echo readouts are superior for the dem- onstration of paramagnetic brain lesions to the ...

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Diffusion Weighted Imaging with Dual Echo Echo Planar Imaging for Better Sensitivity to Acute Stroke

Diffusion Weighted Imaging with Dual Echo Echo Planar Imaging for Better Sensitivity to Acute Stroke

... which echo 2 demonstrated improved le- sion conspicuity and diagnostic confi- dence compared with echo ...on echo 2 could be seen retrospec- tively, either by a side-by-side comparison with ...

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Amazon Article (2).docx

Amazon Article (2).docx

... the Echo Dot, to help bring Alexa to analog speaker systems and get the voice assistant into more rooms of the ...the Echo Look, for AI-assisted outfit recommendations, and the Echo Show, which ...

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Cervical spondylosis: three dimensional gradient echo MR with magnetization transfer

Cervical spondylosis: three dimensional gradient echo MR with magnetization transfer

... gradient- echo techniques, the CSF– cord contrast is maintained in regions of moderate to severe spinal stenosis with the magnetization transfer technique (Figs 4 and 5) despite decreased amounts of CSF ...

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High-resolution ultrasonic non-destructive testing

High-resolution ultrasonic non-destructive testing

... 4.6 'Measured transm it- and calculated finite-sized in water targets for Echo responses frcrn circular 4.6.1.1 Echo responses in terms of plane 4.6.1.2 Variation 4.6.2 Echo responses wi[r] ...

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Confounding Effect of Large Vessels on MR Perfusion Images Analyzed with Independent Component Analysis

Confounding Effect of Large Vessels on MR Perfusion Images Analyzed with Independent Component Analysis

... Technically satisfactory raw echo-planar imaging flow data were acquired for each of the 11 patients, and rCBF maps were produced. In each case, ICA identified components with time characteristics and spatial ...

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T2 mapping of Articular Cartilage in Osteoarthritis of the Knee using 3 T MRI

T2 mapping of Articular Cartilage in Osteoarthritis of the Knee using 3 T MRI

... 3D dual-echo steady state (DESS) uses two or more gradient echoes, with each group of two echoes separated by a refocusing pulse and the data from both echoes is used to obtain a higher T2* weighting for high ...

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Comparison of lesion enhancement on spin echo and gradient echo images

Comparison of lesion enhancement on spin echo and gradient echo images

... For extraaxial and intraaxial lesions with edema, percent C was similar for spin-echo T1-weighted and three-dimensional gradient-echo images, while contrast to noise was greater for spin[r] ...

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