Results 11 to 20 of about 2,318,055 (330)
Gradient horizontal de fonctions polynomiales [PDF]
Annales de l'Institut Fourier, 2009 Nous étudions les trajectoires du gradient sous-riemannien (appellé horizontal) de fonctions polynômes. Dans ce cadre l’inégalité de Łojasiewicz n’est pas valide et une trajectoire du gradient horizontal peut être de longueur infinie, et peut même s’accumuler sur une courbe fermée.
Orro, Patrice +2 more
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Journal of Marine Science and EngineeringGlobal Navigation Satellite System–Acoustic ranging (GNSS-A) technology can achieve centimeter-level seafloor positioning. However, the horizontal gradient of ocean sound speed limits the seafloor positioning accuracy of GNSS-A.
Yang Liu +7 more
doaj +2 more sources
Particle acceleration and pressure gradient in a solitary wave traveling over a horizontal bed
AIP Advances, 2020 This study presents experimental data on the hydrodynamic features of a nonlinear solitary wave of height H0 = 2.9 cm propagating over a horizontal bed in otherwise still water depth h0 = 8.0 cm.
Chang Lin +5 more
doaj +2 more sources
Traveling waves in a fluid layer subjected to a horizontal temperature gradient [PDF]
Physical Review E, 1993 Saclay-S93/017 Email: daviaud@amoco.saclay.cea ...
Daviaud, François, Vince, J.M.
openaire +5 more sources
Study of a Horizontal Gradient Furnace for Vapour Growth
Mapana - Journal of Sciences, 2008 A horizontal linear gradient two zone furnace has been employed to grow single crystals of semiconducting compounds by physical vapour deposition (PVD) method. It was calibrated for various trials including, series and parallel combination of coils, and set temperatures.
Reshmi P. M. +2 more
openaire +3 more sources
Water-lubricated transport of high-viscosity oil in horizontal pipes: the water holdup and pressure gradient [PDF]
, 2017 This paper has investigated the water holdup and the pressure gradient of water-lubricated transport of high-viscosity oil flow in horizontal pipes. Experimental results on the water holdup and the pressure gradient of water-lubricated high-viscosity oil
Jing Shi, Liyun Lao, H. Yeung
semanticscholar +2 more sources
IEEE Transactions on Geoscience and Remote Sensing, 2022 Interferometric synthetic aperture radar (InSAR) often suffers from atmospheric disturbances due to the microwave propagation delay effect, which limits the surface displacement detection accuracy to an order of centimeters or more.
Y. Kinoshita
semanticscholar +1 more source
WTM: The Site-Wise Empirical Wuhan University Tropospheric Model
Remote Sensing, 2022 The tropospheric model is the key model in space geodetic techniques such as Global Navigation Satellite Systems (GNSS) and Very Long Baseline Interferometry (VLBI).
Yaozong Zhou +5 more
doaj +1 more source
JGE, 2022 Generalized Derivative Operator (GDO) is one of the first-order derivative filters that could control the derivative’s direction by modifying the value of azimuth () and dip () parameters.
Dicky Ahmad Zaky, Alissa Bilqis
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Performance Evaluation of Troposphere Estimated from Galileo-Only Multi-Frequency Observations
Remote Sensing, 2020 The tropospheric delays estimated from the Global Navigation Satellite System (GNSS) have been proven to be an efficient product for monitoring variations of water vapor, which plays an important role in meteorology applications.
Lewen Zhao +2 more
doaj +1 more source