The coupling contact forces, between the vehicle and the bridge, are derived by adopting a rigid contact assumption.
The main reasons can be explained as the analysis of the nano-indentation hardness using the projected contact area at peak load Ac instead of the residual projected area Ar, as well as the purely elastic contact assumption describing the elastic/plastic indentation process.
We simulated the effects of four different non-pharmaceutical interventions: school closure, increased voluntary isolation of symptomatic individuals, workplace non-attendance and reduced community contact, with assumptions about each intervention as described above.
In order to impute the other contact characteristics, plausible assumptions were made based on the available information from other POLYMOD countries.
Previous exposure assessments for phthalates have been indirect, that is, relying on surveys of product use, measuring phthalates in various media, estimating human contact, and pharmacokinetic assumptions based on animal data.
Previous studies have been able to identify potential contact structures but assumptions have had to be made on the frequency and patterns of movements between farms [ 10, 15, 20].
The models rely primarily on an understanding of product use, measurements of OP pesticides in various media, estimates of human contact, and pharmacokinetic assumptions based on animal and human data.
Cells were designed to isolate prisoners from all human contact, under the assumption that anyone left completely alone with their crimes would become penitent – hence the new term "penitentiary".
Whereas in acute infections, it is safe to assume static contact networks, this assumption fails in chronic infections where contact networks are dynamic.
Mathematical models of how infectious diseases spread from person to person through close contacts rely on assumptions regarding the underlying transmission process.
