Nowadays, a lot of resources are spent on developing systems that will make it possible forvehicles to act autonomously, and make them more effective. One of the projects that isworking on this is the Gulliver Project. Gulliver has constructed a number of miniaturevehicles equipped with various sensors, to use as a physical testbed for autonomousdriving. One big disadvantage with this method is the long iteration time that occursduring the development and testing of a new software.This project has improved this process by developing a system architecture of a virtualtestbed where it is possible to simulate autonomus vehicles that communicates throughany type of wireless network. The testbed has made it possible to simulate autonomusvehicle systems that with a reasonable margin of error, acts like the system would actin a physical test.

SUMMARYInventory of raw materials holds an important role in companies within the manufacturingsector. The inventory works as a buffer that secure the supply of materials to the productionunit. The aim of the inventory is to ensure that the company is able to meet the customers?demands despite fluctuations and variations in the material flow. The size of the warehouseand the layout are physical limitations for the quantity of articles that can be stored.

This master thesis has been done at Enea Epact AB. The purpose of this thesis is to develop and implement a Link Quality Control algorithm for GPRS/EPGRS in the current testing tool. A Link Quality Control (LQC) shall take quality values from mobile stations and base stations and decide a codingsscheme that opimizes the throughput of data. The Advantage with LQC is that it adapts the used coding scheme to the channel quality. If the channel quality is too bad for the used coding scheme, a slower coding scheme with more redundancy should be selected.

This study evaluates the retention of nitrogen and phosphorus in four newly constructed wetlands in the municipality of Falkenberg, Sweden. The four wetlands have been selected because they have been specifically constructed with the aim to reduce nitrogen and phosphorus in farming areas. The process of selecting the specific wetlands has been done in collaboration with the county administration in Halland. Through field studies in collaboration with the landowners where the wetlands are sited, the areas that provide the wetlands with water were determined. The size of these drainage areas were determined in a GIS computer program. The type of land use within the drainage areas was also determined.

Studien har genom intervjuer i fokusgrupper undersökt vad elever i montessoriklass erfar som lustfyllt i sin lärmiljö.  Elevernas svar har satts i relation till den forskning som finns kring motivation och framgångsfaktorer för lärande samt till montessoripedagogiken.De teorier som studien utgår ifrån är olika motivationsteorier, teorier relaterade till motivation samt montessoripedagogik. Även framgångsfaktorer för lärande beskrivs. Tillvägagångssättet i analysen av fokusgruppsintervjuerna har inspirerats av fenomenografisk metodansats. De två forskningsfrågor som studien ger svar på är vad elever på mellanstadiet och högstadiet, i de undersökta montessoriklasserna, framför som orsaker till att de känner nyfikenhet att lära sig mer i skolan, samt vilka av dessa faktorer som är kopplade till montessoripedagogikens principer, och om de går att överföra till all undervisning. Resultatet av studien visar att eleverna pekar ut läraren som viktig för huruvida de ska känna nyfikenhet och lust i lärandet.

Servera R&S AB is Sweden?s largest wholesale company within the restaurant and food service industry. Servera R&S AB is the daughter company to Axel Johnson AB, which in turn is a part of the Axel Johnson Group with Antonia Ax:son Johnson as the owner. Servera is a nation wide company with a business concept of offering a complete selection of merchandise and services to the professional food service market. The company is split into for different regions: the north region, the middle region, the southwest region, and the southeast region and has its headquarter in Stockholm.

This report present a working model for simulation of what happens to colors displayed on screens when they are observed through optical filters. The results of the model can be used to visually, on one screen, simulate another screen with an applied optical filter. The model can also produce CIE color difference values for the simulated screen colors. The model is data driven and requires spectral measurements for at least the screen to be simulated and the physical filters that will be used. The model is divided into three separate modules or steps where each of the modules can be easily replaced by alternative implementations or solutions.

Den här uppsatsen är ett försök att ringa in och samla ihop tankar kring vad det är att vara närvarande på scen samt hur man kan lära ut det. Arbetet innehåller citat och referat från intervjuer med sju personer: En skådespelare, en koreograf, en jazzsaxofonist och improvisatör, två sångerskor och sångpedagoger, en sångerska och låtskrivare samt en klassisk altviolininst. Här finns också citat och referat ur relevant litteratur. Arbetet ska ses som en ingång till ämnet snarare än en djupdykning..

SUMMARYInventory of raw materials holds an important role in companies within the manufacturingsector. The inventory works as a buffer that secure the supply of materials to the productionunit. The aim of the inventory is to ensure that the company is able to meet the customers?demands despite fluctuations and variations in the material flow. The size of the warehouseand the layout are physical limitations for the quantity of articles that can be stored.

Dagens låga lagervolymer vid industrierna har inneburit högre krav på transportstyrningen av ankommande virke för att säkerhetsställa en kontinuerlig råvaruförsörjning. Kombinatet i Iggesund, som är en del av Holmen AB, har sett potential att effektivisera sin vedhantering vid det massabruk samt sågverk som utgör kombinatet. Vedhanteringen är idag tydligt separerad mellan massabruk och såg. Studiens syfte var att kvantifiera effekten av ett samarbete med vedhanteringen mellan massabruk och såg samt en förändring i lossningsresurser med avseende på relativa kötider för virkesfordon som ankommer till kombinatet. Med händelsestyrd simulering skapades en modell över kombinatet.

This report treats a Master Thesis performed at Scania CV AB. The task was to create a computer model of a hydraulic actuator system in the software AVL Hydsim. The system consists of two spring-loaded masses with surrounding hydraulic components. The purpose of the model is to study phenomenon and problems in the system, as well as to be a support in the development of the system. It is not supposed to be used to study absolute values in its current form.

A well known optimization-problem of multiprocessor system is scheduling of tasks. In this paper I use a variant of previous known algoritm, (Fast Critical Path) for scheduling real-time tasks on a multiprocessor system. This is made in a simulation study in MATLAB. The system architecture is assumed to be a MIMD- machine, (Multiple Instruction stream Multiple Data stream) with bus-typologi and message-architecture. Scheduling was made on this system where the number of processors varying from five to ten.

SUMMARYInventory of raw materials holds an important role in companies within the manufacturingsector. The inventory works as a buffer that secure the supply of materials to the productionunit. The aim of the inventory is to ensure that the company is able to meet the customers?demands despite fluctuations and variations in the material flow. The size of the warehouseand the layout are physical limitations for the quantity of articles that can be stored.

SUMMARYInventory of raw materials holds an important role in companies within the manufacturingsector. The inventory works as a buffer that secure the supply of materials to the productionunit. The aim of the inventory is to ensure that the company is able to meet the customers?demands despite fluctuations and variations in the material flow. The size of the warehouseand the layout are physical limitations for the quantity of articles that can be stored.

The primary function of a mixer is to keep a fluid in constant motion. All mixing applicationsrequire varying degrees of small-scale turbulence and bulk flow. The performance of asubmersible mixer is measured by the thrust that it produces, while the strength of the bulkflow is dependent on the total amount of installed thrust.In a mixer, the fluid quickly flows past the propeller, and as a result, the current is mainlyaxial. The fluid will also obtain a rotating velocity, or a swirl, though this is significantly lessthan that of the propeller. During the process, the total amount of energy increases in the formof static pressure and kinetic energy.