To render outdoor scenes with lots of vegetation in real time is a big challenge. This problem has important applications in the areas of visualization and simulation. Some progress has been made the last years, but a previously unsolved difficulty has been to combine high rendering quality with abundant variation in scenes. I present a method to mathematically generate and render vegetation in real time, with implementation in the scene graph Gizmo3D. The most important quality of the method is its ability to render scenes with many unique specimens with very low aliasing.

Detta arbete är en studie över investeringsmöjligheten vid tävlingsfenomenet Window Dressing inför kvartalsskiftena. Studien bygger på analys av en tredagars långt event-fönster inför kvartalsskiftena mellan år 1996 och 2005 på den svenska aktiemarknaden. Window Dressing uppstår i prestationsbaserade sammanhang och är mest känd när börsföretag dagarna före sina finansiella kvartalsrapporter ror i land ytterligare affärstransaktioner i syfte att dra fördel av sista stundens nyupptäckta affärsmöjligheter. På samma sätt är det antaget att fonderna agerar, inom den egna strategins ram, genom aktiva köp och säljtransaktioner dagarna inför sina kvartalsvisa innehavsredovisningar, baserad på nyupptäckta möjligheter från exempelvis momentumeffekter. Fenomenet får sin acceptans från den betydande konkurrensen på fondmarknaden där fonderna tävlar om att uppvisa skicklighet i värdeskapande.

In the year 1783 a fissure eruption from Laki in the southern part of Iceland produced a large amount of volcanic gases during a period of eight months. The volcanic gases and aerosols spread across the northern hem sphere due to ideal weather conditions and had a substantial impact on the environment, human health and also climate effects. This, so called dry fog, caused severe health problems, which led to death casualties, killing animals, crops and other vegetation. The consequence was a widespread famine which was aggravated by a hard and long winter in 1783/84. Analysis shows that the Icelandic volcanoes are the primary risk to produce dry fog that can affect Sweden.

Inom kunskapsbaserade yrken är det viktigt att rekrytera kompetent personal. Med hjälp av employer branding ökar möjligheten för företag att stärka sin attraktionskraft mot framtida potentiell arbetskraft. Syftet med denna uppsats är att undersöka samt att jämföra hur Deloitte, KPMG, Öhrlings PricewaterhouseCoopers samt Ernst & Young marknadsför sig som arbetsgivare mot Uppsalas ekonomistudenter. Fokus ligger på hur företagens frontpersoner, samt de evenemang företagen genomför, påverkar företagens attraktionskraft. Utifrån employer branding-teorier och med hjälp av intervjuer med studentkoordinatorerna på de undersökta företagen samt en undersökning av företagens evenemang har slutsatser dragits kring hur dessa faktorer påverkar hur attraktivt ett företag, enligt Universums Företagsbarometer, är hos ekonomistudenter på Uppsala universitet.

Sveriges Radio stores their data in large archives which makes it hard to retrieve specific information. The sheer size of the archives makes retrieving information about a specific event difficult and causes a big problem. To solve this problem a more consistent use of metadata is needed. This resulted in an investigation about metadata and keyword genera-tion.The appointed task was to automatically generate keywords from transcribed radio shows. This included an investigation of which systems and algorithms that can be used to generate keywords, based on previous works.

This report is a description of a developed educational simulator over rail vehicles and its components. The simulator is a hardware-based prototype over a door system on rail vehi- cles. System specialists and technicians will use the prototype. The Simulator should give the user a technical demonstration on how components work in a door system. The proto- type consists of motor, switch, relay and sensor.

Since events of September 11 and the subsequent conflicts surrounding the event, the war against terrorism has been constantly present. It has been used several methods and strategies to address these threats, including a method current in use, the targeting method. The method refers to use few but precise attacks to knock out key functions within these organizations, mostly individuals in the higher command and control structures within these organizations. The effectiveness of the method has been put in question when the majority of the terrorist organizations continue their strife, in some cases even increasing its intensity. The purpose of this study is to investigate which role the higher command plays in these organizations ability to wage war.

Forskning med hjälp av mikroskopi har med tiden ställt merspecialicerade krav på utrustning som används. Utrustningenhar blivit mer bättre men samtidigt också dyrare. Enhög kostnad innebär att avancerad mikroskopi inte kan användassom ett utbildningsverktyg inom grundutbildning.Dagens studenter tvingas på så sätt förberedas för framtidensforskning genom att använda gårdagens utrustning.I detta arbete visar vi hur virtuell mikroskopi kan användasför utbildning och forskning. Virtuell mikroskopi kananvändas som komplement, eller möjligtvis ersättning, förbefintlig undervisning. Vi har demonstrerat detta genomatt utveckla en pilotapplikation som simulerar de två metodernaFLIP och FRAP.

AbstractThe purpose of this study was to investigate how preschool teachers reflect on the phenomenon of conflict, and to find out what children think about this in relation to Nanny method. I referred to the following questions:? How to reflect pre-school teachers on conflict management at the preschool?? What methods / approaches tell teachers that they use in conflict management?? How the children reflect on their experiences on conflict management at the preschool?In the background, Im trying to define the word conflict, and I also point to the methods and models that are already in conflict management. It is clear that a key ingredient in the conflict is communication, the question is how well we communicate with each other?I've done interviews with three active educators and four children to study this subject.

Inledning: Många företag genomför idag någon form av prognos som underlag för deras beslut.Det kan handla om prognoser för hur mycket marknaden kommer att efterfråga, hur storakostnader företaget förväntas ha eller hur mycket personal som kommer krävas.Problemformulering: Hur använder företag prognoser i sin verksamhet?Syfte: Syftet med den här uppsatsen är att beskriva och förklara hur prognoser används i företag.Metod: Den här studien har byggt på en kvalitativ forskningsstrategi. Arbetets forskningsansatshar varierat mellan en induktiv metod och en deduktiv metod. Uppsatsens empiriska material harinförskaffats genom semistrukturerade intervjuer på två utvalda företag; Galenica AB och SAABtraining and simulation.Resultat och slutsats: Undersökningen visar att företag använder prognoser som grund för attfatta beslut. Prognoser används främst som grund för budgetarbetet, men företag upprättar ävenprognoser över andra faktorer som påverkar företagets framtid.

Introduction:During a crisis in the society, the communication from the responsible authorities is of big importance. This study shows how the authorities worked with their crisis communication towards the general public during the waterleak in Kalmar in december, 2010.Purpose:The purpose of this study is to investigate how the responsible authorities in Kalmar worked with their crisis communication during the waterleak and also how the general public perceived the crisis communication.Methodology:The study is based on a combination of a qualitative and a quantitative methodology. We begin to work with qualitative interviews with the responsible authorities to get information about the actual event and their work with the crisis communication towards the general public through the mass media. Then we investigate how the general public in Kalmar perceived the crisis communication from the responsible authorities and compare these two results.Conclusion:The study shows that there were several problems, both internally and externally, with the crisis communication from the responsible authorities during the waterleak. Although some people were dissatisified with the responsible authorities crisis communication, the majority were pleased and very satisfied with the information they got from the responsible authorities during the waterleak..

SAAB Aerotech division FGR in Arboga builds and develops equipment and components used in both military and civilian applications. To build a test system for a specific project that SAAB is responsible for requires a simple signal generator that can provide a pulse modulated signal. The need to buy a new advanced signal generator for example from Agilent is not as profitable as the instrument is expensive and contains features that SAAB does not require in their applications and test systems. That was the reason why SAAB offers two students a thesis where the goal is to construct a signal generator in accordance with what SAAB requests.This thesis contains several different phases. The first step was a meeting with our supervisor Mats Bergman and by reading the data sheets for components to be used in the project, with these information and specifications that we have received from SAAB we started to construct the signal generator.What we did during the construction work was to simulate and draw a schematic to be able to design the circuit board.

This comparative linguistic textstudy focuses on the relationship between a newspapers own outspoken political standpoint and it´s ambition of being an unbiased provider of objective information. This connection becomes particulary interestering in times of election when a newspapers role as provider of information is of great importance for the citizens. When a newspaper reports an event to the public, the reporter always has to choose from a small selection of possible linguistic forms when representing the story. Through linguistic analysis of these forms we can see that the final choice is often not a complete arbitrary one. We compared two daily newspapers, Dagens Nyheter and Dala-Demokraten, that stod on opposite sides in the Swedish EMU-elections 2003.

When a disaster occurs the main focus is on the loss of human lives. Here the environmental effects have been in the centre of attention. This work has had two main purposes. The first one was to formulate attributes, variables that together present a complete picture of the consequences that an event has had on the environment. The other main purpose was to investigate how people value the impact that a disaster can have on the environment.

The gas turbines in the Swedish secondary reserve are reaching the end of their technical lifetime, hence alternative solutions need to be considered. One of the solutions thought to have the greatest potential is the use of so called consumptionreduction. By entering contracts with large consumers, agreements are made to reduce consumption in the event of major disturbances in the power system and thus being used as a secondary reserve. This thesis investigates the feasibility of consumption reduction as part of the secondary reserve. This has been achieved by developing a requirement specification for the disturbance reserve and by studying the technical and economic potential for consumption reduction among a range of consumers.The technical potential for consumption reduction that fulfils the requirements for participating in the secondary reserve are on average 750 MW in SE 3 and 98 MW in SE 4.