INDEX Poisson model

For the equivalent continuum, the LBNL research team used a linear elastic material model. A rock-mass Young s modulus 14.77 GPa and a rock-mass Poisson s ratio of 0.21 were adopted from CRWMS M O (1999). These elastic parameters, which represent the bulk rock mass (including the effect of fractures) have been estimated using an empirical method based on the Geological Strength Index (GSI). The adopted rock-mass Young s modulus is about 50% lower than the Young s modulus of intact rock determined on core samples from the site. 

In (19.45), the drop collisions are accounted for via the source term,/cou- One of the most widely used collision models is the one developed by O Rourke [36]. In this model, the probability for a drop with index I to undergo n collisions with a drop of index 2 in a given volume V during the time interval At is given by the Poisson distribution... 

A model for background traffic commonly adopted in statistical network analysis is a Poisson process with negative exponentially distributed arrival times (Hui, 1990). In order to ensure that delays given by a randomly generated individual are exponentially distributed, the delay field is an index in an array of values exponentially distributed from 0 to JIT seconds with an average value of 0.4" AT. We make no assumptions on the number of genes with a given tag. 

Figure 12 The interphase of a soluble cationic surfactant at the air-water interface at low (a) and high (b) bulk concentration. It consists of a charged topmost cationic monolayer, a diffuse layer of counterions and at higher concentrations a compact layer of directly adsorbed counterions. The charge density of the topmost monolayer reduced by the charge of the inner Stern layer determines the ion distribution within the diffuse layer. The prevailing ion distribution is given by solution of the nonlinear Poisson-Boltzmann equation. The excess of ions can be readily translated in a corresponding refractive index profile. The profile determines the reflectivity properties. Ellipsometric data modeled within this framework allow an estimation of the extent to which ions enter the compact layer.

Fig. 2.14. Arrangement of phases in the three-shell model of Van der Poel [67] bulk and shear moduli (K, G) and Poisson s ratios vof filler (index 0 and matrix (index a) and volume concentration Vf enter calculated composite moduli K and G (after [76]).

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