On Christopher Polhem's inventions of war machines and other inventions for military purposes.

We performed high-resolution simulations of two stellar collisions relevant for stars in globular clusters. We considered one head-on collision and one off-axis collision between two 0.6-Msolar main-sequence stars. We show that a resolution of about 100000 particles is sufficient for most studies of the structure and evolution of blue stragglers. We demonstrate conclusively that collision products

In this dissertation, The Public Library and the Museum of Modern Art in Stockholm – A Study of Architectural Criticism in the Swedish Press, the textual genre of architectural criticism is discussed from different perspectives. The principal aim is to illuminate, through a close reading of a sample of articles, how professional critics discursively and rhetorically communicate their idea of archi

Popular Abstract in Swedish Denna avhandling behandlar en speciell typ av felrättande koder som kallas tailbitingkoder. Syftet med en felrättande kod är att korrigera fel som kan uppkomma på grund av brus och störningar då digital information överförs från sändare till mottagare.Tailbiting is a method to terminate convolutional codes into block codes. We call these block codes tailbiting codes. This thesis focuses on the encoding of tailbiting codes. The tailbiting method is carefully investigated. Conditions for when the tailbiting method fails are given, and methods for the proper initialization of the encoder are presented. Furthermore, the minimum distances of the tai

Abstract in Italian Nell’aprile 2011, al famoso logo della community di file sharing globale The Pirate Bay fu aggiunta l’immagine di una lente di ingrandimento e il nome del sito cambiò in The Research Bay. Gli utenti che cliccarono sul nuovo logo furono reindirizzati su un sondaggio online; durante le 72 ore di svolgimento dello studio, 75.000 file-sharer compilarono il questionario preparato da

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