Fitting the model with τ constrained to an interval typically yields a τ value at either endpoint, reflecting the constraint, except for those intervals which contain τ values at which the Deviance attains a local minimum.
People develop projects without any constraints except time and their collective skill.
Default exchange reaction constraints were used, except for a glucose uptake lower bound of −8 mmol/gDW/h and an oxygen uptake lower bound of −18.5 mmol/gDW/h, representing aerobic growth on glucose.
We note that the sum-rate expression for DPC is essentially the same as that for SZF, except without the null space constraints, and for a reversed ordering.
The result shows that all soft constraints are fully satisfied, except for the one indicating that students have two free days for hard exams.
Finally, we have not made any special assumption on the regulation of biochemical pathways with respect to the activation level, nor have we imposed specific constraints on transport fluxes (except for the uptake of glucose that we use to fine-tune the oxygen-to-glucose index (OGI), see below).
By examining the constraints in (21a)–(21d), it can be seen that all the constraints are in the form of posynomial inequalities except for the constraint in (21d).
These requirements seemed to have been inspired from social network behaviour where there are no constraints or limitations in general on their collaborative or social behaviour except for security constraints.
Old constraints remain for now, though.
