More on Lot-to-Lot Changes

More on lot-to-lot changes.

International comparisons: we need to know a lot more.

In response to the recently published UNICEF report on child injury deaths Ramsay asks “Do international comparisons help?” and concludes that provided countries occupying low positions are not stigmatised the comparison serves a purpose if only to raise awareness of child injury death. While increased awareness of one’s country’s performance relative to others may be a necessary condition for ...

Body-worn monitors: a lot done, more to do.

How to Use MRP in Continuous Production Industries When Order Type is Lot for Lot

The Materials Requirements Planning (MRP) method that is applied in production planning and management has some weaknesses. One of its weaknesses is that the time in MRP method is discrete, and is considered as time period. Hence we are not able to order our requirements at irregular time moments or periods. In this paper, a new form of MRP is introduced that is named Continuous Materials Requi...

Lot-sizing on a tree

For the problem of lot-sizing on a tree with constant capacities, or stochastic lot-sizing with a scenario tree, we present various reformulations based on mixing sets. We also show how earlier results for uncapacitated problems involving (Q,SQ) inequalities can be simplified and extended. Finally some limited computational results are presented.