Production planning and scheduling in the steel industry are challenging problems due to large number of products being produced. This work deals with scheduling of the continuous casting of steelmaking, i.e. determination of charge sequence in each casting machine. Since a full-space model Mixed-Integer Linear Programming (MILP) approach is computationally intractable for long term continuous ...

Abstract In steel continuous casting (CC), the choice of appropriate speed at which slab is cast can be influenced by many different factors and phenomena. While thickness seems to have biggest impact, other features like width been consistently overlooked. fact, practically limits via mass flow constraint governs input output balance tundish. Here, we present a case study that aims analyzing p...

Many of multimedia applications in distributed systems should transmit continuous audio/video across networks when clients request. Typically, messages for continuous media in packet-switched networks are split into periodic, different sized packets with deadlines. Since clients request different typed services, traffic streams are heterogeneous. Furthermore, since the continuity of continuous ...

Process optimization determines process parameters that maximize or minimize (optimize) so aspect of a process (the obieciive function), while ensuring that the process operates wr established limits. In this work a mathematical model that simulates heat flow and solidification continuously cast steel strand is coupled with mathematical optimization techniques to predict opt process parameters ...

Quality of Service (QoS) and Quality of Data (QoD) are the two major dimensions for evaluating any query processing system. In the context of data stream management systems (DSMSs), multi-query scheduling has been exploited to improve QoS. In this paper, we are proposing to exploit query scheduling to improve QoD in DSMSs. Specifically, we are presenting a new policy for scheduling multiple con...

Minimum execution time scheduling of task systems with resources has been the subject of several papers over the past few years. The model used for much of this work assumes that the resources in the system are continuous. That is, there is one unit of each resource, and a task may require any portion of that unit during its execution. While this is a reasonable assumption for certain bin packi...