In this paper, we study the partitioning of constraints in temporal planning problems formulated as mixed-integer nonlinear programming (MINLP) problems. Constraint partitioning is attractive because it leads to much easier subproblems, where each is a significant relaxation of the original problem. Moreover, each subproblem is very similar to the original problem and can be solved by any exist...

The increase in the use of electrical and electronic devices worldwide has created a rapid growth waste equipment (WEEE). current paper presents an optimization-based simulation (OBS) approach that allows design sustainable WEEE management system policies. proposed OBS integrates dynamics (SD) model mixed-integer nonlinear programming (MINLP) to improve representation performance processes cons...

This paper investigates a multi-period rectilinear distance 1-center location problem considering a lineshaped barrier, in which the starting point of the barrier follows the uniform distribution function. In addition, the existing points are sensitive to demands and locations. The purpose of the presented model is to minimize the maximum barrier distance from the new facility to the existing f...

In the downstream oil & chemical industry Planning and Scheduling are resource intensive, complex, rolling processes. Decisions are taken at different stages within the supply chain (Supply, Manufacturing & Distribution) and at different levels in the management hierarchy (Planning, Scheduling & Operations). They differ in business scope, time horizon & resolution, data certainty & accuracy, pr...

An extended version of Kelley’s cutting plane method is introduced in the present paper. The extended method can be applied for the solution of convex MINLP (mixed-integer non-linear programming) problems, while Kelley’s cutting plane method was originally introduced for the solution of convex NLP (non-linear programming) problems only. The method is suitable for solving large convex MINLP prob...