Search Results - "Hay, AE"

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    Principal bed states during SandyDuck97: Occurrence, spectral anisotropy, and the bed state storm cycle by Hay, Alex E., Mudge, Todd

    Published in Journal of Geophysical Research - Oceans (01-03-2005)
    “…Results are presented from 70+ days of nearly continuous in situ acoustic imagery of the nearshore sandy seabed in ∼3‐m mean water depth, at two locations…”
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    Antioxidant Xanthones from Garcinia vieillardii by Hay, Anne-Emmanuelle, Aumond, Marie-Christine, Mallet, Sabine, Dumontet, Vincent, Litaudon, Marc, Rondeau, David, Richomme, Pascal

    “…Two new xanthones, 6-O-methyl-2-deprenylrheediaxanthone B (1) and vieillardixanthone (2), were isolated from the stem bark of Garcinia vieillardii, as were…”
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    Geometry, migration, and evolution of wave orbital ripples at LEO-15 by Traykovski, Peter, Hay, Alex E., Irish, James D., Lynch, James F.

    “…Observations of the temporal evolution of the geometric properties and migration of wave‐formed ripples are analyzed in terms of measured suspended sand…”
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    Ruthenium-Catalysed Enantioselective Hydrogenation of Trisubstituted Enamides Derived from 2-Tetralone and 3-Chromanone: Influence of Substitution on the Amide Arm and the Aromatic Ring by Renaud, J. L., Dupau, P., Hay, A.-E., Guingouain, M., Dixneuf, P. H., Bruneau, C.

    Published in Advanced synthesis & catalysis (01-01-2003)
    “…Cyclic enamides were prepared in one step from tetralone and chromanone derivatives and primary amides under acidic conditions. The enantioselective…”
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    Coherent Doppler Profiler measurements of near-bed suspended sediment fluxes and the influence of bed forms by Smyth, C., Hay, Alex E., Zedel, L.

    Published in Journal of Geophysical Research - Oceans (15-08-2002)
    “…This paper reports on remote acoustic observations of vertical turbulence intensity and vertical suspended sediment flux profiles on a planar beach in 3–4 m…”
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    Naturally occurring scour pits in nearshore sands by Hay, Alex E., Speller, Rachel

    “…Depressions 10–50 cm in diameter and O(10) cm deep were observed in rotary acoustic imagery of the seafloor during SandyDuck97. The rotary sonar record spans a…”
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    Near-bed turbulence and bottom friction during SandyDuck97 by Smyth, C., Hay, Alex E.

    Published in Journal of Geophysical Research (01-06-2003)
    “…Remote acoustic measurements of turbulence intensity profiles are investigated as a function of wave energy and bedstate, from low energy vortex ripples to…”
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    Linear transition ripple migration and wave orbital velocity skewness: Observations by Crawford, Anna M., Hay, Alex E.

    Published in Journal of Geophysical Research. C. Oceans (15-07-2001)
    “…Field observations were made in 3–4 m water depth of linear transition ripple geometry and migration using a high‐resolution laser‐video bed profiling system…”
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    Vertical structure of surface gravity waves propagating over a sloping seabed: Theory and field measurements by Zou, Qingping, Hay, Alex E., Bowen, Anthony J.

    Published in Journal of Geophysical Research - Oceans (01-08-2003)
    “…Theoretical predictions of the vertical structure of wave motion over a sloping seabed are compared with field observations close to the bed in the nearshore…”
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    A three-component bistatic coherent Doppler velocity profiler: error sensitivity and system accuracy by Zedel, L., Hay, A.E.

    Published in IEEE journal of oceanic engineering (01-07-2002)
    “…We report on a 1.7-MHz coherent Doppler sonar system designed for near-shore environments that provides three-component velocity profiles over an O(1-m-depth)…”
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    LOCALIZATION OF NORTH ATLANTIC RIGHT WHALE SOUNDS IN THE BAY OF FUNDY USING A SONOBUOY ARRAY by Laurinolli, Marjo H., Hay, Alex E., Desharnais, Francine, Taggart, Christopher T.

    Published in Marine mammal science (01-10-2003)
    “…A free‐drifting 14‐sonobuoy array was used to localize North Atlantic right whales (Eubalaena glacialis) in the Grand Manan Basin area of the Bay of Fundy…”
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    Cross-shore migration of lunate megaripples during Duck94 by Ngusaru, Amani S., Hay, Alex E.

    Published in Journal of Geophysical Research - Oceans (01-02-2004)
    “…Remote acoustic observations of lunate megaripple migration are presented from two storm events during the Duck94 nearshore dynamics experiment for time…”
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    Volunteer counsellors for supporting breast feeding: Support for breast feeding must be proactive by Hay, Annette E

    Published in BMJ (07-02-2004)
    “…EDITOR-Graffy et al's finding that offering voluntary support to breastfeeding mothers did not significantly affect breastfeeding rates is not surprising. 1…”
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    Antifungal chromans inhibiting the mitochondrial respiratory chain of pea seeds and new xanthones from Calophyllum caledonicum by Hay, A-E, Guilet, D, Morel, C, Larcher, G, Macherel, D, Le Ray, A-M, Litaudon, M, Richomme, P

    Published in Planta medica (01-12-2003)
    “…Two new xanthones, caledonixanthone M 1 and caloxanthone L 2, and one new acid, caledonic acid 6 were isolated from the hexane-soluble extract of the stem bark…”
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    Determining suspended sand size and concentration from multifrequency acoustic backscatter by CRAWFORD, A. M, HAY, A. E

    “…An inversion algorithm for extracting suspended sand size and concentration from simultaneous backscattered acoustic pressure amplitude at three operating…”
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    Performance of a single-beam pulse-to-pulse coherent Doppler profiler by Zedel, L., Hay, A.E., Cabrera, R., Lohrmann, A.

    Published in IEEE journal of oceanic engineering (01-07-1996)
    “…We report on the testing of a single-beam 1.7-MHz coherent Doppler sonar. The system is PC-controlled, using a digital signal processor (DSP) to acquire and…”
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    Wave orbital velocity skewness and linear transition ripple migration: Comparison with weakly nonlinear theory by Crawford, Anna M., Hay, Alex E.

    Published in Journal of Geophysical Research - Oceans (01-03-2003)
    “…Field observations of linear transition ripples during an autumn storm exhibit high correlation between cross‐shore ripple migration rate and the skewness of…”
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    Sound scattering from a particle-laden, turbulent jet by HAY, A. E

    “…Multifrequency acoustic scattering experiments were carried out in the laboratory using a free, turbulent water jet carrying solid particles in suspension. A…”
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