To obtain high performance control of a dc-dc converter, a good model of the converter is needed. The load usually affects the dynamics and one way to take this into consideration is to regard the load as a part of the converter. The load is often the most variable part of this system. If the load current and the output voltage are measured there are good possibilities to obtain a good model of th

Syftet med avhandlingen är att klarlägga de intraurbana sambanden mellan transportstruktur, bebyggelsestruktur och maktstruktur (utvecklingskontroll). Viktiga faktorer för samspelet som vi urskiljt är verksamhets- och bostadslokalisering, densitet, centrumstruktur, transportsystemets uppbyggnad och färdmedelsval. Faktorerna sammanfattas i en enkel modell. Sambanden har undersökts i fem utländska f

Abstract in German Geschlechterforschung ist – inzwischen oder noch? – zumindest nominal Bestandteil universitärer Lehre und Forschung. Gleichzeitig besteht in kultur- und sozialwissenschaftlichen Zusammenhängen weitgehend theoretisch-argumentativer Konsens darüber, dass die Rolle von Forscher*innen im ‚Feld’ nicht allein explorativ ist, sondern ihr Auftreten Bedeutungen (mit-)produziert. Hierarch

Ghambageu, the apotheosized cultural hero of the Sonjo of Northern Tanzania, has traditionally had many affinities with Jesus. During the last six decades of missionary efforts among the Sonjo, he has increasingly developed into a Jesus-like figure. Through this "inverted contextualization", linked with the use of traditional means of excercise of power through the control over irrigation water, t

Optimum peripheral perfusion, oxygenation and oxygen utilization is a prerequisite for normal wound healing, resistance to infection and cardiac function. The purpose of this study was to evaluate peripheral oxygen utilization by measurements of subcutaneous tissue gases and pH (PscO2, PscCO2 and pHsc) in comparison to established techniques for measurements of periph-eral tissue oxygenation and o

New trellis constructions for compression of short data sequences are presented. Traditional low rate trellis source coding suffers from having a too small a reproduction alphabet. Governed by alphabet-constrained rate-distortion theory we propose a simple method which for a source coding rate of 1 bit per sample allows 2n reconstruction values for a trellis with 2n states. The proposed method is

On the early history of card-playing with particular reference to John of Rheinfelden's treatise

Neural networks with internal feedback from the hidden nodes to theinput [Elman, 1990 are developed for prediction of the auroralelectrojet index AE from solar wind data. Unlike linear and nonlinearautoregressive moving-average (ARMA) models, such networks are free todevelop their own internal representation of the recurrent statevariables. Further, they do not incorporate an explicit memory for p