As a result, the facet model becomes very 'large' in terms of number of facets or vertices.
But a major disadvantage is that the model becomes very difficult to implement in circuit solvers based on SPICE and providing an equivalent implementation in Verilog.
Through introducing eight variables in CALM (20), each sub-minimization or sub-maximization problem of this model becomes very simple because there is no curvature term in these sub-problems.
When the film which contains one of the reactants is formed by condensation from the gas phase, as in chemical absorption of ketene into acetic acid and acetic anhydride, the model becomes very complex.
It turns out that the fixed point (E_{2}) of map (3) loses its stability through a NS bifurcation, when β varies around 1. As β decreases the behavior of this model becomes very complicated, including the NS bifurcation and many chaotic bands.
"If the model becomes very lucrative, it can change the market," said Tasha Lewis, a professor specializing in fashion sustainability at Cornell's College of Human Ecology.
Second, cohort models become very complex if they need to capture multiple co-morbidities, such as those associated with alcohol misuse, which has been linked with multiple health problems.
But if the formation is not homogenous or if there is some discontinuity in the formation, most of these models become very complex and their solutions lose their accuracy, especially when the shape or reservoir geometry and boundary conditions are complex.
The superiority of the WFL in model performances becomes very clear especially in higher lead times such as 48 h.
Figure 3 describes the Hopf bifurcation diagram with respect to h, we note that, as h increases, the behavior of this model (4) becomes very complicated, and the changes of parameter h has an effect on the stability of system (4).
