With the help of the results of simulation of the potentiostatic current transients with varying initial concentration in the electrode, based upon a diffusion equation involving stress-induced diffusion, the results of the potentiostatic current transient experimentally obtained are satisfactorily analyzed.
The tissue optical properties have been modeled based upon photon diffusion theory.
More recently, a device based upon thermal diffusion (HemedexTM) has been approved for post-operative quantification of microvascular perfusion in the liver, but it does not permit direct measurement of blood flow in either the hepatic artery or portal vein nor does it assess tissue oxygenation.
A modification of the effusion technique, based upon controlling the diffusion of the target compound and subsequent high resolution gas chromatography/low resolution mass spectrometry (HRGC/LRMS) analysis, was proven comparable to other accepted methods for determining the vapor pressures of semi-volatile organic compounds (SVOCs).
The model is based upon the drift and diffusion of protein substructures relative to one another in the multiple energy fields present.
Preconditioners based upon transport sweeps and diffusion-synthetic acceleration have been constructed and applied to the zeroth and first spatial moments of the 1-D Sn transport equation using a strictly nonnegative nonlinear spatial closure.
Nepf, H.M. [1999. Drag, turbulence, and diffusion in flow through emergent vegetation. Water Resources Research, 35(2), 479 489] proposed a model predicting the diffusion coefficient based upon the plant density for both laminar and turbulent flow conditions.
A theoretical model has been derived for the impedance of a thin film hydride electrode based upon the assumption that hydrogen diffusion is neglected in the electrode.
Generalising the particle shifting approach of Xu et al. (2009) [31], the algorithm is based upon Fick's law of diffusion and shifts particles in a manner that prevents highly anisotropic distributions and the onset of numerical instability.
The maximum number is based upon the effective maximum range of diffusion during the interval [ 0, t ].
A multiscale model was developed to simulate the rate of landing of a winged insect, the grain aphid, Sitobion avenae F. At a large scale (kilometric scale), it is convenient to use a deterministic model of their dispersion, based upon diffusion advection reaction partial derivative equations.
