Test bench for air bearingsThis thesis work consisted of bringing forward and defining the test parameters relevant for a test bench and constructing a test bench that can test and verify the largest existing air bearings that are of use in Micronic Laser Systems AB machines. Because the knowledge about air bearings is limited it is thought that with the help of the test bench the knowledge would increase and in that way improve the air bearings.After learning more about air bearings and their purpose at Micronic Laser Systems AB, I started the concept phase for the test bench. For each part in the test bench I consulted my two tutors, Torbjörn Hedevärn and Johan Bergqvist, at Micronic Laser Systems AB. The final concepts where documented as 3D-modells in Solidworks and some of them have been tested in Solidworks FEM-program.The test bench is designed so that, with the help of a pneumatic cylinder, 25 kilo weights are placed on the air bearing to test its stiffness, damping and the pressure performance under its surface area. To test these parameters the test bench has to have a pressure meter, accelerometer and a microcator.

During spring 2007, I Matilda Lindblom, undertook my Bachelor Degree project in Furniture Design. The supervisors were Agneta Stake at Nola in Stockholm and Leo Jóhannsson, teacher and examiner at Carl Malmsten CTD in Stockholm.The project was based on three elements:? Cooperate together with a producer for professional supervision? Learn to work from a given design brief.? To learn more about industrial production? Learn more about furniture for public areasI contacted a furniture producer called Nola AB, in Stockholm, who became my work partner during this project. The asked me to design a piece of furniture where you can sit and work with a laptop on. The target was for public areas, for example in parks, malls, or at airports.In cooperation with Nola, my ambition was to develop this piece of furniture that was the answers on their wishes and demands.

Det svenska försvarets övergång till insatsförsvar och internationella insatser har lett till omfattande förändringar av Försvarsmakten. Inom ramen för detta är ny amfibiebataljon under framställning. Denna bataljon bör agera med telekrigsförmåga och därmed undersöks vilken typ av system bör vara lämpligt för amfibiebataljon 2014. Initialt så framställs en genomgång av elektronisk krigföring för att skapa förståelse för ämnet och telekrigsförmågans utveckling i både Armén och Marinen. Amfibiebataljon 2014 presenteras för att beskriva förbandet som amfibieregementet skall ansvara för.

This report will examine various solar energy technologies in order to decide if they could be applied in the Royal Seaport. The Royal Seaport is a Swedish urban district under development in Stockholm, with the goal of becoming a sustainable district. Two main techniques, solar collectors and solar cells, including sub-categories, are addressed in this report. Another sub-category, a hybrid system, will also be mentioned. The main difference between solar collectors and solar cells is the type of energy produced by the system.

Dagens samtida konflikter skiljer sig ganska markant ifrån den typ av krigsföring som vi är vana att se den, exempelvis under andra världskriget där reguljära förband stred mot varandra med de allierade på ena sidan fronten och axelmakterna på den andra. I dagens konflikter är nyttjandet av irreguljära förband vanligt förekommande vilket har lett till att reguljära förband måste strida på helt andra villkor och omständigheter än förut.Under Vietnamkriget startades Operation Fenix i syfte att bemöta denna nya typ av krigsföring och de metoder som användes av den amerikanska underrättelsetjänsten var något som inte hade prövats tidigare. Tyvärr gav dessa metoder inte det underrättelsevärde som det var tänkt till en början men frågan står fortfarande kvar hur dessa metoder påverkade VCIs (Viet Cong Infrastructure)  krigföringsförmåga.Syftet med denna uppsats är att i en fallstudie granska om de metoder som Operation Fenix använde under Vietnamkriget var effektiva gentemot irreguljära styrkor samt om det finns något stöd gentemot dessa metoder i militärteorin.I uppsatsen används en teoriprövande fallstudie där David Galulas teorier implementeras i ett analysverktyg skapat utav de tre pelarna i krigföringsförmågor där varje faktor analyseras och slutligen sammanfogas till resultat till den givna frågeställningen.Denna uppsats visar på att de effekter Operation Fenix hade på de irreguljära moståndarna har ett visst samband med de teorier David Galula skapat gällande Counterinsurgency Warfare..

This Master?s Thesis is an evaluation of the software Xilinx System Generator (XSG) and blockset for Matlab. XSG is a module to simulink developed by Xilinx in order to generate VHDL code directly from functions implemented in Matlab. The evaluation was made at Saab Avionics AB in Järfälla, north of Stockholm. In order to investigate the performance of this new module XSG to simulink, a model of a frequency estimator often used in digital radar receivers were implemented in Matlab using XSG.

The aim of this project was to develop a numerical model simulating the global transport of air pollution. The model currently used by SMHI, the Swedish Meteorological and Hydrological Institute, was intended to perform such simulations at regional scales. However, the usage of a grid based on longitudes and latitudes makes this model work poorly in global simulations. The problem with this grid is that the nodes are concentrated near the North and South Poles. Due to this characteristic, the Courant, Friedrich and Lewy-condition for numerical stability puts a sharp bound on the timestep length.

This paper deals with testing the method Reflectance Transformation Imaging (RTI) on the copy of the Piraeus-lion in Historic Museum in Stockholm. The purpose is to find out if it is possible to gather more information about the runic inscriptions. RTI is a method that records the surface normal of individual pixels in a digital photograph by analyzing the impact of light coming from different angles of entrance. RTI produces sort of a 3D-image of the object. There will be an overview of earlier interpretations of the runic scripts written on the lion as well as an overview of Varangians in the southeast.

Syftet med denna studie är att undersöka huruvida den tyska ubåtskrigföringen under andra världskriget använde sig av sjökrigsmetoder som beskrevs av Sir Julian Corbett i början av 1900-talet. För att testa Corbetts teorier studeras slaget om Atlanten 1939 ? 1945 som ett empiriskt fall.Frågeställningen i denna rapport är: Vilka likheter och/eller skillnader finns mellan Sir Julian Corbetts sjökrigsmetoder och det tyska ubåtsvapens agerande under slaget om Atlanten? Metoden som används för denna undersökning är en komparativ metod där slaget om Atlanten studeras som ett fall. Resultatet visar att det finns en del likheter men också skillnader mellan tyskarnas ubåtskrigföring och Corbetts teorier. Corbett menar att syftet med all sjökrigföring är att alltid direkt eller indirekt säkra ett sjöherravälde eller att hindra motståndaren från att säkra den.

???This research traces the trajectory of those methods of teaching grammar that five different teachers in Swedish from Stockholm municipality use in their practice. ?Their both constructive and negative attitudes towards grammar were in fokus when looking after the connection between their own experience of learning/teaching native language grammar and the methods that they are actually using in their own classes. I was trying to gain knowledge and achieve the purpose of this research by means of a qualitativ method.

Six different Digital Proofing Systems from three different techniques have been evaluated as totechnique, printing quality, economy and usability. Digital proof from two paper qualities, coatedand uncoated, has been compared with references printed in offset, to see how good they match eachother. Only two Proofing Systems manage to print on reference paper. The other Proofing Systemsuse special paper for digital proof.Measurements and visuell judgement show that the Digital Proofing Systems visualise referencepictures with quite good quality. Proof optimised for coated paper visualise the colours with goodresult.

The task in this thesis is the steering of one of Saab Bofors Dynamics robots using Sliding Mode Control, a method they never used before. The robot constitutes a system which in addition to perturbations and uncertainties due to modeling imprecision, hold the difficulty of being highly time variant. In order to be able to keep required performance with uncertainties and modeling imprecision present, the use of robust control methods like Sliding Mode Control is necessary. SMC is based on the states of the system being forced to stay on or in the direct vicinity of a hyper plane in the state space which is chosen in a way that gives the system dynamics desired properties. Other advantages with sliding mode are reduced order dynamics on the switching surface and total insensitivity to some uncertainties and perturbations.

Humidity problems and poor ventilation are factors that we associate with poor indoor airquality which are known to negatively affect health. Such problems have decreased with timein Sweden but, in other countries this is still a major problem especially during winter. InChile, this is most common in the central regions of the country, especially the Strait ofMagellan. This issue is primarily due to surface condensation happening indoors which bringsabout dampness which facilitates the growth of fungus and stains, foul odors, metal corrosionand more. This is due to a combination of poor ventilation and insufficient forms of heatingalong with buildings which have no insulation.

The municipality of Kalmar have a problem, how to reach and communicate with young people in Kalmar. In today?s changing media environment it gets more difficult to stand out and reach audience with messages and especially with the new forms of media that has revealed. Therefore, we have been commissioned to develop recommendations on how the municipality of Kalmar can communicate with young people in Kalmar.  The purpose with this study is to investigate which media channels young people in Kalmar use and their attitudes towards social media in particular. We wanted to find out how the municipality should communicate to reach them and what attitude youths have against the municipality in general.

Today?s wind power plants are only compensated for their reactive power consumption at no-load. As the wind power plants grow bigger the amount of reactive power they need also increases. This is no longer a problem that can be ignored, especially as the net owners are beginning to charge the reactive power they transport.In this thesis a couple of different methods of compensation and their prices will be discussed and evaluated. Problems, such as self-excitation, that can occur if one fully compensates the wind power plant will also be brought to surface.