The ISO solves a constrained optimization problem (linear programming in this case) in order to find (underline {S} = [S_{1}, ldots, S_{|G|}]), the optimum power generating assignment for the generators, and (underline {theta } = [theta _{1}, ldots, theta _{|B|}]), the voltage angles on the buses, which minimize the cost charged by the generators.
The assignment was generated using a random number generator in Excel, with a 2 to 1 probability of assignment to the intervention vs. the waitlist.
A random number generator determined the assignment to either LBSS or sutures at time of surgery.
Figure 3 illustrates this selection process with a simplified network, comprising of red and numbered circles that represent EV and eligible households respectively, with their probability of EV assignment by the random number generator also shown.
In this paper, the problem of optimal assignment of trailer-mounted steam generators for cyclic steam stimulation (CSS) of petroleum wells is formulated as a parallel uniform machines scheduling (PMS) problem with release dates.
For each system, ten indipendent MD runs out of 2.5 µs each were carried out using different random number generators for the assignment of the velocities.
Randomization was performed with a computerized random number generator and group assignments were sealed in opaque envelopes.
Randomization is based on a computer based random number generator which creates assignments that are numbered sequentially and placed in sealed envelopes.
Inside each envelope will be the subject's group assignment, determined using a random number generator, with randomization to be conducted in blocks by nursing home site and time to ensure equal assignments across the two groups at the completion of the study and approximately equal assignments throughout the study to control for unknown temporal effects.
For each level of strata, a random sequence of study group assignments is generated using a computerized random-number generator [ 12].
