In this paper, the problem of finding the minimum cost flow line able to produce different products is considered. This problem can be formulated as a shortest path problem on an acyclic di-graph when the machines graph associated with each product family is a chain or a comb. These graphs are relevant in production planning when dealing with pipelined assembly systems. We solve the problem usi...

A method of using a dynamic texture map on 3D polylines to represent field streamlines is described, for the purpose of visualizing continuous fluid dynamics fields. The method combines stream lines and particle animation into one hybrid technique, and employs texture display on lines to represent full 3D lighting, motion and 3D flow structure in one view. The technique exploits texture graphic...

In this paper, a Schwarz-Christoffel method for generating two-dimensional grids for a variety of complex internal and external flow configurations based on the numerical integration procedure of the Schwarz-Christoffel transformation has been developed by using Mathematica, which is a general purpose symbolic-numerical-graphical mathematics software. This method is highly accurate (fifth order...

Demand trends towards mass customization drive the need for increasingly productive and flexible assembly operations. Walking-worker lines can present advantages over fixed-worker systems. This article presents a multiproduct parallel walking-worker line with shared automated stations, evaluates its operational performance compared to semiautomated manual lines. Simulation models were used set ...

Abstract State-of-the-art technologies for wind and tidal energy exploitation focus mostly on axial turbines. However, cross-flow hydrokinetic turbines possess interesting features, such as higher area-based power density in array installations shallow water, well a generally simpler design. Up to now, the highly unsteady flow conditions cyclic blade stall have hindered deployment at large scal...

This study presents an application for a series VSC (voltage source converter) in distribution grids power flow management. Series devices have been widely studied FACTS (flexible AC transmission systems), however, more recently these gained increased interest applications loading balance medium voltage grids. As the number of distributed generation (DG) units increases, increasing capacity and...

compare the process oriented modelling method with the resource oriented method. The resulting simulation tool can be used for the design of scheduling algorithms. Solutions can be found to compromise between the use of resources and productivity of the plant. The increasing use of flexible production environments poses high demands on production planners. Besides the necessity to optimize the ...