A Monte Carlo simulation was carried out to determine the theoretical precision of each method, considering the uncertainty of various experimental parameters. A model鈥恇ased simulation of a diffusion experiment was used to determine the theoretical accuracy as a result of six sources of error: ...
I've a question about how to define the diffusion coefficient of a certain material in CFX please? Because I want to simulate the diffusion between two liquids in a domain. I haven't found any option that we can plug into the value of diffusion coefficient ...
The impact on turbulent transport by\(\alpha _\textrm{d}\)can be seen by estimating a diffusion coefficient (McCarthy et al.1992; Zeiler et al.1996) for RBM turbulence. With the typical time scale\(t_\textrm{RBM}=\sqrt{RL_n/2}/c_\textrm{s}\)(the ideal interchange growth rate) a...
whereρis the reaction coordinateRelbow(the distance between U60 in aa-tRNA and U8 in the P-site tRNA) andDis the diffusion coefficient (estimated from explicit-solvent simulations46). While interatomic distances can provide intuitive descriptions of elbow movement, the full dynamics are multi-dimen...
(32) Remarks. The developed porous electrode model uses effective medium theory to describe the transport of ions and dissolved gas. In the simplest variant, Bruggeman's equation could be used to determine the effective ion conductivity and the diffusion coefficient, κleff = κlbulk ετ, ...
Using electrical conductance measurements on the vitreous humor, Maurice (1957) estimated the diffusion coefficient for Na in the vitreous humor to be 90% of that for isotonic water at the same temperature, and so the diffusion coefficient for Na24 could be estimated as 1.7 × 10−9 m2/s....
To determine the weighted foreign international restriction policy for each country, we calculated the weighted sum using the share of arrivals of other countries multiplied by the corresponding policy value ranging from 0 to 4.Footnote 6 Similarly, case severity amongst countries comprising the ...
If you are used tomodeling diffusion by Fick’s law, it is also worth mentioning that the mobility and the diffusion coefficient are related by the Nernst-Einstein relation (5) Since there is neither production nor consumption of ions, and assuming a stationary solution, the divergence of the...
Finally, we also predict the spin diffusion length (ls) of pristine CsPbBr3 in the low-density limit, which sets the upper bound of ls at different T. We use the relation ls=Dτs, where D is diffusion coefficient obtained using the Einstein relation, with carrier mobility μ from first-...
(6), as obtained by fitting the stretched exponential approximation to the MD data for K(U), the number of co-ion layers at equilibrium (Fig. 2). Equation (6) depends parametrically on τ, which, in turn, depends on the unknown co-ion diffusion coefficient Dc (eq. (5)). Accordingly...