In the current paper, we present an optimization system solving multi objective production scheduling problems (MOOPPS). The identification of Pareto optimal alternatives or at least a close approximation of them is possible by a set of implemented metaheuristics. Necessary control parameters can easily be adjusted by the decision maker as the whole software is fully menu driven. This allows th...

A new approach to motion planning for multiple robots with multi-mode operations is proposed in this paper. Although sharing a common workspace, the robots are assumed to perform periodical tasks independently. The goal is to schedule the motion trajectories of the robots so as to avoid collisions among them. Rather than assigning the robots with different priorities and planning safe motion fo...

This chapter describes the history of production scheduling in manufacturing facilities over the last 100 years. Understanding the ways that production scheduling has been done is critical to analyzing existing production scheduling systems and finding ways to improve them. The chapter covers not only the tools used to support decision-making in real-world production scheduling but also the cha...

Isr develops, applies and teaches advanced methodologies of design and analysis to solve complex, hierarchical, heterogeneous and dynamic problems of engineering technology and systems for industry and government. Isr is a permanent institute of the university of maryland, within the a. James clark school of engineering. It is a graduated national science foundation engineering research center....

We present a new approach to segmenting multiple time series by analyzing the dynamics of cluster formation and rearrangement around putative segment boundaries. This approach finds application in distilling large numbers of gene expression profiles into temporal relationships underlying biological processes. By directly minimizing information-theoretic measures of segmentation quality derived ...

The construction industry has acknowledged that its current working practices are in need of substantial improvements in quality and efficiency and has identified that computer modeling techniques and the use of prefabricated components can help reduce times, costs, and minimise defects and problems of on-site construction. This paper describes a virtual environment to support the construction ...

The logistic processes in most steel producing plants are very complex. To assist the decision makers in steel producing plants, Incontrol Enterprise Dynamics have developed for and in cooperation with SMS Demag in Germany, a simulator that can be used to rapidly model any steel plant. The Steel Plant Simulator has been built using the software package Enterprise Dynamics® and allows for rapid ...

In this bachelor’s thesis an approach for Flow Systems in UPPAAL is introduced. This approach is then used to implement a model for an industry use-case: the pre-production machine Lithography Wafer Scanner System by company A. It is during this implementation concluded that this model is not valid. Next, a tool is written to generate Gantt charts from traces of arbitrary timed UPPAAL models. T...

This paper presents a holonic and isoarchic approach to the FMS (Flexible Manufacturing System) control. This approach is based on a flat holonic form, where each holon is a model for each entity of the FMS, with a unifying level of communication between holons. After description of this model, called PROSIS, the interaction protocol and decision rules are presented. The objective is to increas...

self confronted with a difficulty which is pithily expressed by the phrase embarrass des richesses; Deuitt, Holmes, Beyant, Eeichsen, G-ant and we hope soon to add Agnew, each admirable in its way and specially valuable from some special point of view ; all sound and complete embodiments of modern surgery. We have not included in the list of text books Paget's immortal work or Billeoth's splend...