Results 11 to 20 of about 53,760 (259)

Calibration of an Airborne Interferometric Radar Altimeter over the Qingdao Coast Sea, China

open access: yesRemote Sensing, 2020
Calibration/Validation (Cal/Val) of satellite altimeters is fundamental for monitoring onboard sensor performance and ensuring long-term data quality.
Lei Yang   +11 more
doaj   +1 more source

Phase Velocity and Attenuation of Longitudinal Shear Vibrations of Hollow Poroelastic Cylinders

open access: yesInternational Journal of Applied Mechanics and Engineering, 2014
The present paper is devoted to the study of phase velocity and attenuation of longitudinal shear vibrations of hollow poroelastic circular cylinders in the presence of dissipation.
S. Ahmed Shah, S. Javvad Hussaini
doaj   +1 more source

Study Of Three Dimensional Propagation Of Waves In Hollow Poroelastic Circular Cylinders

open access: yesInternational Journal of Applied Mechanics and Engineering, 2015
Employing Biot’s theory of wave propagation in liquid saturated porous media, waves propagating in a hollow poroelastic circular cylinder of infinite extent are investigated.
S.A. Shah
doaj   +1 more source

Turbulent boundary layer noise : direct radiation at Mach number 0.5 [PDF]

open access: yes, 2013
Boundary layers constitute a fundamental source of aerodynamic noise. A turbulent boundary layer over a plane wall can provide an indirect contribution to the noise by exciting the structure, and a direct noise contribution.
GLOERFELT, Xavier, BERLAND, Julien
core   +1 more source

A new global coupled atmosphere-ocean wavenumber-4 pattern in Southern mid–latitudes during austral summer and its climate linkage

open access: yesEnvironmental Research Communications, 2023
A new pattern referred to as the coupled ocean-atmosphere wavenumber-4 (COAW4) pattern has been identified in the Southern mid-latitudes during austral summer. This pattern consists of a wavenumber-4 pattern in the anomalous 200-hPa meridional wind and a
Lejiang Yu   +3 more
doaj   +1 more source

A Study of Wave Refraction in a Marginal Ice Zone: Frazil-Pancake Ice

open access: yesIEEE Access, 2020
Theoretical estimates based on both offline calculation and an online model are made to study the wavenumber variations during wave refraction in a marginal ice zone (MIZ).
Haijin Dai, Jun Zhao, Xueyan Zhang
doaj   +1 more source

Surface instability of a semi-infinite isotropic laminated plate under surface van der Waals forces

open access: yesArchives of Mechanics, 2015
By means of complex variable method, the present work demonstrates that the surface of a semi-infinite isotropic laminated plate that is being attracted to a rigid contactor through van der Waals forces is always unstable.
X. Wang, Y. Xu, K. Zhou
doaj   +1 more source

Nonlinear energy in a wave turbulence system; pp. 430–437 [PDF]

open access: yesProceedings of the Estonian Academy of Sciences, 2015
Single-wavenumber representations of nonlinear energies are required to investigate energy budget due to nonlinear interactions among Fourier modes in wave turbulence.
Naoto Yokoyama, Masanori Takaoka
doaj   +1 more source

Seasonal Variations in the Vertical Wavenumber Spectra of Stratospheric Gravity Waves in the Asian Monsoon Region Derived from COSMIC-2 Data

open access: yesRemote Sensing, 2022
We used the Constellation Observing System for Meteorology, Ionosphere, and Climate-2 (COSMIC-2) dry temperature profile data from December 2019 to November 2021 to study the vertical wavenumber spectra of the potential energy of stratospheric gravity ...
Tao Qu   +4 more
doaj   +1 more source

On the calculation of wavenumber from measured time traces [PDF]

open access: yes, 2020
When characterising local geometry for unsteady water waves, the accurate determination of spatial quantities such as the wavenumber from measured time traces is non-trivial.
Craciunescu, Constantin Cosmin   +1 more
core   +1 more source

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