نتایج جستجو برای: velocity change

تعداد نتایج: 723900  

Journal: :Ecological Indicators 2022

Anthropogenic climate change is challenging biodiversity conservation worldwide. Climate metrics derived from future predictions help to assess potential impacts of on biodiversity. Here we calculated velocities across biogeographical regions terrestrial Europe and the Natura 2000 protected area network, largest network Earth. We applied projections for year 2070, considering two emission scena...

2012
Diane Rivet Michel Campillo Victor Cruz-Atienza Mathilde Radiguet Nathalie Cotte Vladimir Kostoglodov Nikolai M. Shapiro

Repeated cross-correlations of ambient seismic noise indicate a long-term seismic velocity change associated with the 2006 M7.5 slow-slip event (SSE) in the Guerrero region, Mexico. Because the SSE does not radiate seismic waves, the measured velocity change cannot be associated with the response of superficial soil layers to strong shaking as observed for regular earthquakes. The perturbation ...

ژورنال: مهندسی دریا 2016
ضرغامی دهاقانی, زهرا, موسائی, امین,

In this study, the results of a direct numerical simulation of turbulent drag reduction in a channel flow by hydrophobic coating at a nominal shear Reynolds number of Reτ = 180 are reported. Slip condition is imposed on the lower wall whereas the upper wall has no-slip condition. For this purpose, the use is made of a numerical simulation of three-dimensional, time-dependent Navier-Stokes e...

Unsteady slip-flow of second grade non-Newtonian electrically conducting fluid over an oscillating sheet has been considered and solved numerically. A second-order slip velocity model is used to predict the flow characteristic past the wall. With the assumption of infinite length in x-direction, velocity of the fluid can be assumed as a function of y and t, hence, with proper variable change pa...

The aim of the present work is to analyze the accuracy and to extend the capability of lattice Boltzmann method in slip EOF; a phenomenon which was previously studied by molecular dynamics and less considered by LBM. At the present work, a numerical experiment on boundary conditions of slip velocity is performed and the proportionality of slip with shear stress in electroosmotic pump is proved....

Journal: :فیزیک زمین و فضا 0
مهرداد سلیمانی منفرد عضو هیات علمی علی خلیل زاده دانش آموخته کارشناسی ارشد/دانشگاه شاهرود

the conventional approach to seismic data analysis consists of two main steps: estimating seismic velocities, (the subsurface macro-model), and seismic imaging, (mapping of the reflected seismic energy to the reflector positions). the aim and the major challenge in the seismic data analysis is the construction of the best undistorted image. this challenge would be more problematic when geometri...

Journal: :journal of computational applied mechanics 0
hadi ramin university of tehran mohammad pourjafar university of tehran

eunsteady slip-flow of second grade non-newtonian electrically conducting fluid over an oscillating sheet has been considered and solved numerically. a second-order slip velocity model is used to predict the flow characteristic over the wall. with the assumption of infinite length in the x-direction, the velocity of the fluid can be assumed as a function of y and t, hence, with proper change va...

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