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A Simple But Rich Test Example for H∞-Optimal Control

A simple second order feed-forward disturbance attenuation problem is analyzed. The problem has one free parameter, the control weight ρ in the loss function. It is found that controller structure and uniqueness for H∞-control, in the optimal case, changes when ρ is varied. Sensitivity to initial conditions is also drastically changed. The example is simple enough to allow a solution by formula ma

Furniture in Warm and Humid Climates

Most furniture produced in a temperate climate, such as in Europe, does not have a long service life in warm and humid conditions. This means it is difficult to purchase furniture from temperate climates for export to tropical countries. This report discusses the problems and gives recommendations on how to choose materials and types of furniture construction for humid conditions. Wood and wood

Path generation for a class of survivable network design problems

In this paper we address link dimensioning and routing problems related to the area of resilient network design. We present two network design problems that assume different flow restoration schemes used to cope with network failures. In both cases we allow bifurcation of traffic flows in the normal (failure-less) network state. In the case of a failure, we assume that affected primary flows (i.e.