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This paper presents a resource management strategy for control tasks that maximizes control performance within the available resources by readjusting the task periods at run-time. A feedback scheduler is used to determine on-line the optimal task periods considering the response over a finite time horizon of the plants controlled by arbitrary linear control laws. We show how this problem can

“Capacity building” in DRM is typically approached through an access model that normalizes technical transfers of innovations from ‘developed’ to ‘developing’ areas. Through a framework of world systems political ecology, normalization of this flow is shown to be a mystification of the social relations of exchange that undergird the manufacture of such innovations. “Capacity building” turns out to

Paper prepared for the ESTER course in research design, Münster 13-15 October 2005

In this paper the choices of control variables and control structures are investigated for the Open Plate Reactor. Since the process design is very flexible, it allows many different control structures and variables and it may be non-trivial to find the most suitable choice. Analysis with the Relative Gain Array indicates that the flexible process configuration of the OPR enables a decentrali

In the EU, it is believed that the potential benefits of academic R&D are not fully reaped. Much attention is, therefore, given to enhancing commercialisation in the form of academic spin-offs, patents and licences. There are, however, a number of problems with this way of analysing the effects of academic R&D. Its contribution must instead be captured by a systems approach and we go some

We study diffusion of cooperation in a two-population game in continuous time. At each instant, the game involves two random individuals, one from each population. The game has the structure of a Prisoner's dilemma where each player can choose either to cooperate (c) or to defect (d), and is reframed within the field of approachability in two-player repeated game with vector payoffs. We turn the g

The use of cross-flow ultrafiltration for the recovery of coating material from aqueous streams started about 30 years ago with electro-deposition paint in the automotive industry. This early success can be related to both environmental and economical advantages of using ultrafiltration. Ultrafiltration recovers and concentrates electro-deposition paint on the retentate side and produces purified

Four methods for deriving partial atomic charges from the quantum chemical electrostatic potential (CHELP, CHELPG, Merz-Kollman, and RESP) have been compared and critically evaluated. It is shown the charges strongly depend on how and where the potential points are selected. Two alternative methods are suggested to avoid the arbitrariness in the point-selection schemes and van der Waals exclusion

The number of nanoparticle-based products on the market is expected to increase considerably during the coming decades. For this to happen a solid supply of high-quality nanoparticles is needed. For metal nanoparticles no large-scale manufacturing method exists today but production using spark discharge generation is believed to be one of the most suitable candidates. Spark discharge generation of