Examples of using Diffusion coefficient in English and their translations into Portuguese
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EN 0331 diffusion coefficient in porous media.
In the case of matter,this property is called diffusivity or the diffusion coefficient.
Table 2 lists the diffusion coefficient of some gaseous components of air.
The double system reduced the chloride diffusion coefficient by 67.
In another cases,be a diffusion coefficient which depends of global population in.
In turbulent flows, the transport by eddy motion can be expressed as a grossly increased diffusion coefficient.
The diffusion coefficient of a protein or lipid in the membrane can be calculated from the data.
Correlation among the values of apparent diffusion coefficient provided by diffusion-weighted….
If the diffusion coefficient depends on the density then the equation is nonlinear, otherwise it is linear.
It is affected by the local density such that the diffusion coefficient follows a power law.
C: Axial image,apparent diffusion coefficient mapping corroborating the absence of areas of diffusion restriction.
Among the models mentioned, we focus on adoption of different temporal dependence in the drift term and diffusion coefficient.
Evaluation of the best apparent Diffusion Coefficient parameter as a potential predictor….
Diffusion-weighted images were obtained with b values of 50, 400 and 800,with reconstruction of apparent diffusion coefficient maps.
The important parameters are the diffusion coefficient time, the confinement time, and dwelling time.
Unlike typical diffusion, anomalous diffusion is described by a power law, σr2~ Dtα,where D is the diffusion coefficient and t is the elapsed time.
Carbon dioxide in air has a diffusion coefficient of 16 mm2/s, and in water its diffusion coefficient is 0.0016 mm2/s.
More recently, several authors have used migration tests to calculate the diffusion coefficient in nonsteady-state conditions 16, 17.
The steady-state diffusion coefficient Ds in migration tests is estimated using the Modified Nernst-Planck equation.
Milwaukee, USA for reconstruction of a map of apparent diffusion coefficient(ADC) and study of the spectroscopy graphic.
The following apparent diffusion coefficient(adc) values(x10-3 mm2/s) were extracted for each roi: minimum- adcmin, maximum- adcmax, mean- adcmean, and standard deviation of the adc- adcdev.
For a repulsive interaction between particles, the diffusion coefficient tends to increase as concentration increases.
The cpmg technique andfield gradient sequence pulsed pfgste were applied to obtain relaxation times(t2) and diffusion coefficient(d) respectively.
For an attractive interaction between particles, the diffusion coefficient tends to decrease as concentration increases.
Polyurethane coating and double protection system are the surface treatments that showed the best efficiency in reducing the penetration of chlorides 71% and67% reduction of chlorides diffusion coefficient, respectively.
This combination of techniques can produce diffusion coefficient images, as well as contiguous particle numbers.
In order toassess the condition of concrete structures, the useful life of the construction can be estimated from the diffusion coefficient chlorides in concrete.
Figure 5 presents the results of chloride diffusion coefficient determined by the method proposed by.
The studies were developed in whole concentration range at 25 °c. the solutions were studied by correlations between macroscopic properties, specifically the viscosity,with molecular properties measured by nuclear magnetic resonance relaxometry and diffusion coefficient.
Some authors[16, 18, 25]attribute reductions of the diffusion coefficient to reductions in the water/binder in this case, cement+ red mud.