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The presented work is motivated by Free Space Optics (FSO) communications. FSO is a well established wireless optical transmission technology considered as an alternative to radio communications for example in metropolitan wireless mesh networks. An FSO link is established by means of a laser beam between the transmitter and the receiver placed in the line of sight. A major disadvantage of FSO lin

The Characterizing ExOPlanet Satellite (CHEOPS) mission was selected in October 2012 by ESA as the first small mission. It will be a ultra-high precision photometer dedicated to the observation of transits of known exoplanets on bright stars, for which the mass has already been measured via ground-based spectroscopic surveys. Its precision will allow the accurate determination of the planetary rad

Long-term pain problems and residual restricted mobility were evaluated for patients sustaining acute distractive flexion injuries to the cervical spine. To assess which of two alternative surgical approaches gives better long-term outcomes, 58 patients were studied, 29 in each group. The results of posterior wire stabilization without fusion according to Brandt were contrasted with those of the C

13 kvinnors livsöden i Sverige från sent 1700-tal till tidigt 2000-tal, baserade på brev, dagböcker, självbiografier och intervjuer.

This experimental study adapts a usage-based perspective on L2 acquisition (Bybee 2008; Ellis 2008) and focuses on the production of French subject-verb (SV) agreement in number (singular vs. plural). Previous studies show that the acquisition of this agreement is a long and gradual process in L2 French (Bartning & Schlyter 2004; Prévost 2009; Michot 2015). This study examines the influence of

Thirty-four patients with traumatic distractive flexion injuries in the mid to lower cervical spine were treated with posterior wire stabilization without bony fusion from January 1981 through May 1987. Fifteen had cord involvement, and nine had root involvement. Ten were neurologically intact. Thirty patients were followed for a mean of 38 months. Two neurologically intact patients had root defic

SLF’s vårexkursion gick till trakterna av Kumla och Örebro med Mikael Hagström som arrangör. En god skara människor hade slutit upp och trotsade de initialt urusla vädret, men som tur var bättrade det sig. Med på exkursionen var Martin Westberg, Samantha Fernandez Brime, Ulf Arup, Emil Persson, Sten Svantesson, Stefan Ekman, Linnea Eide-Ekman, Måns Svensson, Lovisa Fogelberg, Ola Hammarström, JespSLF’s vårexkursion gick till trakterna av Kumla och Örebro med Mikael Hagström som arrangör. En god skara människor hade slutit upp och trotsade de initialt urusla vädret, men som tur var bättrade det sig. Med på exkursionen var Martin Westberg, Samantha Fernandez Brime, Ulf Arup, Emil Persson, Sten Svantesson, Stefan Ekman, Linnea Eide-Ekman, Måns Svensson, Lovisa Fogelberg, Ola Hammarström, Jesp

Many engineers and scientists prevalently use computational tools in electromagnetics, which is also the predominant case for antennas. The ever-increasing number of applications and technologies that employ antennas create a constant demand to improve and extend existing tools and develop new ones. This dissertation investigates computational tools for antenna analysis and design. Antenna current