Free Space Optics (FSO) has received a great deal of attention lately both in the military and civilian information society due to its potentially high capacity, rapid deployment, portability and high security from deception and jamming. The main issue is that severe weather can have a detrimental impact on the performance, which may result in an inadequate availability. This report contains a feasibility study for an all-optical free-space link intended for short-range communication (200-500 m). Laboratory tests have been performed to evaluate the link design. Field tests were made to investigate availability and error performance under the influence of different weather conditions.

Bakgrund: Evidens finns för att träning inriktad på neuromuskulär kontroll, styrka och medvetenhet kan minska antalet skador i nedre extremitet hos fotbollsspelare. Brister i rörelsekontroll skulle kunna predisponera för smärta, dysfunktion och skador och vara en orsak till skaderecidiv. Syfte: Att studera rörelsekontroll hos unga manliga fotbollsspelare före och efter en träningsintervention på elva veckor med särskilt fokus på ländrygg, bäcken och höftregion. Metod: Tjugo unga elitsatsande fotbollsspelare ingick i studien. Screeninginstrumentet The Matrix Movement and Performance Screen (MPS) användes för att mäta spelarnas rörelsekontroll före och efter en träningsintervention på 11 veckor.

AimThe aim with this study was to acquire knowledge of mental training and if you can use it in the elementary school to increase in a short period of time the performance in a coordination test. Furthermore we wanted to investigate teachers understanding of the possibilities to perform this kind of training in the elementary school, and if there is support for this in the school regulation.MethodAs method we have used a combination of a literature pre-study, interview and at the end an experiment. Before the experiment and interviews could take place we studied literature about mental training to get a basic knowledge of the subject. The facts we learned from our pre-study and interviews gave us the base for our experiment. The experiment group included 23 pupils in a third class at school situated in Stockholm.

In some herds it has been observed that extremely short teats have become a problem; with a negative influence on the milking performance. The aim of this study was therefore to investigate to what degree the quality of the teats and the milk in cows with short teats is affected as compared with cows with normal teat length and furthermore if the milking performance could be improved by using a liner adapted to short teats. This study was divided in two parts. In the first part, it was examined if there were any differences between short teats and teats with normal length with reference to the milking performance, udder emptying, teat treatment, milk quality, and udder health. 11 pairs of cows were used and in each pair of cows one cow had teats shorter than 40 mm while the other cow had teats longer than 50 mm.

Examensarbetet handlar om en jämförelsestudie av beräkningseffektivitet med avseende på energi- och tidsförbrukning mellan grafikkort och processorer i persondatorer och PlayStation 3.Problemet studeras för att göra allmänheten uppmärksam på att det går att lösa en del av energiproblematiken med beräkningar genom att öka energieffektiviteten av beräkningsenheterna.Undersökningen har genomförts på ett explorativt sätt och studerar förhållandet mellan processorer, grafikkort och vilken som presterar bäst i vilket sammanhang. Prestandatest genomförs med molekylberäkningsprogrammet F@H och med filkomprimeringsprogrammet WinRAR. Testerna utförs på MultiCore- och SingleCorePCs och PS3s av olika karaktär. I vissa test mäts effektförbrukning för att kunna räkna ut hur energieffektiva vissa system är.Resultatet visar tydligt hur den genomsnittliga effektförbrukningen och energieffektiviteten för olika testsystem skiljer sig vid belastning, viloläge och olika typer beräkningar..

Många av de verktyg som används för mätning och styrning av prestationer i offentliga organisationer är hämtade från privat verksamhet. Dock har offentliga organisationer ofta andra typer av mål och styrning än privata företag, vilket försvårar måluppföljningen. Denna uppsats syftar till att få en förståelse av Trafikverkets användning av prestationsmätning samt tillämpning av mål- och resultatstyrning. Vidare kan studien ge ett bidrag till ökad kännedom kring hur mätning och styrning av prestationer sker inom en statlig organisation. I en fallstudie som innefattar intervjuer och dokumentgranskning studeras hur mätning och styrning av mål fungerar i Trafikverkets största investeringsverksamhet.

The Swedish building stock accounts for nearly 40 percent of the total energyconsumption in the country. Properties built today are likely to last for 100 years orlonger. This places high demands on long-term and smart energy solutions that willkeep the future Swedish building stock energy consumption at low levels. This thesishas focused on examining how the energy performance of buildings is affected bydifferent choices of window types in different cardinal directions. The objective wasto obtain a basis for recommendations on how window properties can be optimizedfor different types of buildings and orientations.

SAAB Automobile ABis a car manufacturer within General Motors corporate group. SAABAutomobile ABhas a big part of the responsibility for the brake development in the corporategroup. The car industry is facing harder environmental requirements, which influence the brakedevelopment. The focus is to develop brakes with low drag and sustained brake feeling andperformance. Important characters for the brake caliper are high stiffness and low weight, highstiffness results in high performance and low weight is important because it is unsprung mass.This thesis investigates the possibility to improve the performance of the brake caliper for aGMproject.

Mitt examensarbete kom till slut att bli en performance som handlar om keramikkonst genomen annan konstform, teatern. Jag ville skapa ett verk av flera beståndsdelar som enbart existerari nuet. Ett verk i förvandling. Jag kallar mitt examensarbete för Dialog eftersom jag har arbetat idialog mellan olika material och mellan olika konstformer. Verket handlar även om arbete, tid ochhur vi värderar olika sysselsättningar.

The exhaust arrangement on a Scania V8 consists of one manifold at each bank connected to a twin entry turbine (8-2-2). A study in GT-Power has shown improved performance and reduced cylinder to cylinder variations using two manifolds at each bank in combination with a single entry turbine (8-4-1). This thesis work analyses the difference in performance shown in simulation and verify it by engine test.The initial work was focused on simulation in GT-Power. Investigating how exhaust manifold volume and pulses effects the turbine efficiency and the mean effective pressure during the gas exchange. To verify GT-Power simulations four engine tests with different exhaust arrangement have been made.The results from GT-Power simulation indicate that a larger exhaust volume improve the turbine efficiency.

The main purpose of this Master Thesis has been to evaluate whether active fund management is profitable on Emerging Markets. The material used to examine this consists of 106 actively managed funds, with varying length during the period 1988-2006 and who uses MSCI Emerging Markets (MSCI EM) as benchmark index. The thesis has been written under the supervision of the Asset Management Department of Länsförsäkringar AB (LFAB) and the Department of Production Economics, Linköping Institute of Technology. Apart from the main purpose, the methodology used is also meant to form a template for in-depth or similar studies, preferably by the assigner of this survey, LFAB.The results shows that the median manager underperforms the MSCI EM throughout the whole period, which leads to the conclusion is that active management on Emerging Markets is not profitable. A grouping of the funds based on tracking error still shows that a majority of the managers in all of the groups underperforms against the benchmark.

It is important for every store to have a good financial performance which can be affected by the average purchase and the number of customers in the store. Customers shopping experience can affect both of these factors and therefore it is important for retailers to know about how an in-store environment can affect this experience. The purpose of this study is to give retailers an indication of the importance of consumers' shopping experience and how this may affect the store's financial performance. To study this subject an in-store survey was conducted in four grocery stores in Stockholm where a total of 320 consumers answered a total of 41 questions about their shopping experience. By sales data it was possible to conduct a statistical analysis to see which variables regarding consumers shopping experience influenced the average purchase.

The Ericsson AXE-based systems are programmed using an internally developed language called Plex-C. Plex-C is normally compiled to execute on an Ericsson internal processor architecture. A transition to standard processors is currently in progress. This makes it interesting to examine if Plex-C can be compiled to execute on the JVM, which would make it processor independent. The purpose of the thesis is to examine if parts of the run-time environment of Plex-C can be translated to Java and if this can be done so that sufficient performance is obtained.

Under 1990-talet kom Kaplan och Norton fram med styrningsfilosofin balanserat styrkort som innebär att managers uppmanas att inte enbart ta hänsyn till finansiella mått utan bör använda sig av både finansiella och icke-finansiella mått för att kunna styra företag. Det här konceptet med balanserat styrkort har sedan det togs fram utvecklas och i början av 2000-talet finns den tredje versionen av balanserat styrkort som tillsammans med avancerad teknologi bildar konceptet business performance management. Det innebär att den information som ligger till grund för de rapporter som består av finansiella och icke-finansiella mått hämtas från en central databas i det verksamhetsöverskridande business performance management systemet. En anledning till det är att business performance management knyter samman balanserat styrkort med avancerad teknologi som möjliggör att managers därmed har möjlighet att få tillgång till en gemensam version av verkligheten, det vill säga en gemensam mental bild hur företaget presterar. Dessutom möjliggör den avancerade teknologin att managers oavsett om beslut tas som är strategiska, taktiska eller operativa att de har tillgång till den information som beslutsunderlagen baseras på i rätt tid.Den information som beslutsunderlagen baseras på måste bestå av en tillfredställande god kvalitet för att möjliggöra att managers tar korrekta och optimala beslut.

When the independent upper secondary schools were started in 1992, it meant a change in the competitive relationship for the local upper secondary schools. A reduced number of students during some years ahead, while the number of independent upper secondary schools increase will probably result in tougher competition between upper secondary schools.The purpose of this study is to review and compare financial and performance management between a public and an independent upper secondary school. The dissertation will focus on the now existing competitive relationship between the two types of upper secondary schools.The theory underlying the study is Porter's model - five competitive forces. The model is applied to the local upper secondary school and used to identify competitive factors affecting upper secondary schools. The study is using a qualitative approach with five interviews at two upper secondary schools, one independent and one public, located in the same town.The comparison of financial and operational management of upper secondary schools indicate that the differences are not as great as we first imagined, but that there still are some differences.