搜索结果: 1-15 共查到“tracer”相关记录119条 . 查询时间(0.093 秒)
A tracer investigation of obligatory oxidative amino acid losses in healthy, young adults
cyst(e)ine leucine humans
2016/6/1
Estimation of the minimum requirement for indispensable
amino acids (IAAs) has been attempted by assuming
that obligatory oxidative losses (OOLs) of IAAs can be approximated
from nitrogen losses an...
Passive tracer in a slowly decorrelating random flow with a large mean
Passive tracer slowly decorrelating random flow large mean
2015/7/14
We consider the movement of a particle advected by a random flow of the form v + δF(x), with v ∈ Rd a constant drift, F(x) – the fluctuation – given by a zero mean, stationary random field and δ 1 s...
On asymptotics of a tracer advected in a locally self-similar,correlated flow
On asymptotics tracer advected locally self-similar correlated flow
2015/7/14
In this paper we consider the motion of a tracer in a flow that is locally self-similar and whose correlations decay at infinity but at the rate that does not guarantee that the flow does not have ”me...
Tracer experiments within composite soil column investigated by MRI
Cambisol infiltration laboratory experiments magnetic resonance imaging porous medium preferential flow sand soil samples tracer velocity field
2015/3/2
The magnetic resonance imaging (MRI) technique was used for the visualisation and interpretation of flow paths. A set of tracer-infiltration experiments was performed on soil columns filled with packe...
Comparison of the ensemble Kalman filter and 4D-Var assimilation methods using a stratospheric tracer transport model
the ensemble Kalman filter 4D-Var assimilation methods stratospheric tracer transport model
2014/12/19
An ensemble Kalman filter (EnKF) assimilation method is applied to the tracer transport using the same stratospheric transport model as in the four-dimensional variational (4D-Var) assimilation system...
Global mass fixer algorithms for conservative tracer transport in the ECMWF model
Global mass fi xer algorithms conservative tracer transport
2014/12/18
Various mass fixer algorithms (MFAs) have been
implemented in the Integrated Forecasting System (IFS) of
the European Centre for Medium-Range Weather Forecasts
(ECMWF) to ensure mass conserva...
A mass-conserving and multi-tracer efficient transport scheme in the online integrated Enviro-HIRLAM model
A mass-conserving multi-tracer effi cient transport scheme
2014/12/12
In this paper a new advection scheme for the
online coupled chemical–weather prediction model EnviroHIRLAM is presented.
Downscale cascades in tracer transport test cases: an intercomparison of the dynamical cores in the Community Atmosphere Model CAM5
tracer transport test cases the dynamical cores Community Atmosphere Model CAM5
2014/12/10
The accurate modeling of cascades to unresolved scales is an important part of the tracer transport component of dynamical cores of weather and climate models. This paper aims to investigate the abili...
Mass-conserving tracer transport modelling on a reduced latitude-longitude grid with NIES-TM
Mass-conserving tracer transport modelling a reduced latitude-longitude grid NIES-TM
2014/12/9
The need to perform long-term simulations with reasonable accuracy has led to the development of mass-conservative and efficient numerical methods for solving the transport equation in forward and inv...
Are similar worms different? A comparative tracer study on bioturbation in the three sibling species Marenzelleria arctia, M. viridis, and M. neglecta from the Baltic Sea
worms different bioturbation
2014/4/2
The invasive spionid polychaetes of the genus Marenzelleria spp., consisting of the three sibling species M.
neglecta, M. viridis, and M. arctia, has been found in the Baltic Sea since the 1980s. Bec...
First Passage Times for a Tracer Particle in Single File Diffusion and Fractional Brownian Motion
First Passage Times Tracer Particle Single File Diffusion Fractional Brownian Motion Biological Physics
2012/5/29
We investigate the full functional form of the first passage time density (FPTD) of a tracer particle in a single-file diffusion (SFD) system whose population is: (i) homogeneous, i.e., all particles ...
Octanol-water partition coefficients (Kow) vs. pH for fluorescent dye tracers (fluorescein, eosin Y), and implications for hydrologic tracer tests
fluorescein eosin Y tracer octanol-water retardation
2017/4/11
Values of the octanol-water partition coefficient (Kow) have been measured vs. pH for two fluorescent dyes (fluorescein,
eosin Y) commonly used in hydrologic tracer tests. Values for both fluorescent...
The spectral slope coefficient of chromophoric dissolved organic matter (S275–295) as a tracer of terrigenous dissolved organic carbon in river-influenced ocean margins
The spectral slope coefficient chromophoric dissolved organic matter S275–295 tracer of terrigenous dissolved organic carbon river-influenced ocean margins
2014/4/4
The present study demonstrates that the spectral slope coefficient of chromophoric dissolved organic matter (CDOM) between 275 nm and 295 nm (S275–295) can be used as a tracer of the percent terrigeno...
The spectral slope coefficient of chromophoric dissolved organic matter (S275–295)asa tracer of terrigenous dissolved organic carbon in river-influenced ocean margins
spectral slope coefficient chromophoric dissolved organic matter terrigenous dissolved organic carbon river-influenced ocean margins
2014/4/3
The present study demonstrates that the spectral slope coefficient of chromophoric dissolved organic matter(CDOM) between 275 nm and 295 nm (S275–295) can be used as a tracer of the percent terrigenou...
Scaling laws of passive tracer dispersion in the turbulent surface layer
Scaling laws passive tracer dispersion the turbulent surface layer
2011/8/18
Abstract: Experimental results for passive tracer dispersion in the turbulent surface layer under stable conditions are presented. In this case, the dispersion of tracer particles is determined by the...