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

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

Cities divided by violent conflict, such as Mostar, Beirut and Nicosia, have proved remarkably resistant to peacebuilding efforts aimed at reconstruction, reintegration and reconciliation. Such cities tend to freeze the conflict, as it remains divided regardless of a conflict settlement. Contested cities therefore become symbols of the continuities rather than discontinuities between war and peace

A project focusing on identifying and describing maritime risks is being conducted in the heavily trafficked water area of the Sound, situated in northern Europe between Sweden and Denmark. This paper reports of a test of a first version of a questionnaire constructed for measuring safety culture onboard vessels.48 crew members on a Swedish registered passenger/cargo ship completed and returned th

A model for foot skin temperature prediction was evaluated on the basis of 2 experiments on subjects at various environmental temperatures (light seated manual work at -10.7 °C (Study 1), and a short walking period in combination with standing and sitting at +2.8 °C, -11.8 °C and -24.6 °C (Study 2), with boots of 3 insulation levels. Insulation of the footwear was measured on a thermal foot model.

Avhandlingen behandlar relationen mellan den kommunala skolans anställda och elever och föräldrar med muslimsk bakgrund.

Two frameworks are proposed for extremum seeking of general nonlinear plants based on a sampled-data control law, within which a broad class of nonlinear programming methods is accommodated. It is established that under some generic assumptions, semi-global practical convergence to a global extremum can be achieved. In the case where the extremum seeking algorithm satisfies a stronger asymptotic s

2006 lades avhandlingen Safety culture in sea and Aviation transport fram vid Institutionen för Designvetenskaper vid Lunds tekniska högskola. Avhandlingsarbetet var framför allt en del av det LFV-finansierade HUFA-projektet (Human Factors in Air Navigation Services) vid Lunds universitet, samt en del av ett större sjösäkerhetsprojekt finansierat av bl.a. Sjöfartsverket och VINNOVA. Här följer en