This master?s thesis examines the possibility to heuristically optimise instruction cache performance in a Just-In-Time (JIT) compiler. Programs that do not fit inside the cache all at once may suffer from cache misses as a result of frequently executed code segments competing for the same cache lines. A new heuristic algorithm LHCPA was created to place frequently executed code segments to avoid cache conflicts between them, reducing the overall cache misses and reducing the performance bottlenecks. Set-associative caches are taken into consideration and not only direct mapped caches.

?Colosseum- Code of Hammurabi? var titeln på det spelprojekt jag deltog i under kursen ?Spelprojekt II? vårterminen 2006. Spelet är ett fightingspel för upp till fyra spelare som äger rum i en arena i öknen. Då tiden för exjobbet närmade sig bestämde jag mig för att vara med och vidareutveckla spelet till XBox 360.För att få ett proffsigare intryck av arenan till Colosseum valde jag att i en historisk kontext omarbeta arkitekturen efter storyn till ?Colosseum- Code of Hammurabi".I arbetet ingår att finna en lämplig setting och tidpunkt för arenan.Resultatet har blivit en arena som influerats av många olika kulturer, från den babylonska dynastin till Rom och det Parthiska imperiet.Eftersom historien inte alltid erbjudit nakna fakta har jag efter egen förmåga fyllt i de tomrum som uppstått för den kontextuella designen, men även behållit vissa av de stilelement som utmärkte designen i Colosseum- Code of Hammurabi..

The purpose with this masters thesis was to model the scanner in a system for laser bathymetry. The model was then used to develop a controller for the scanner so a good search pattern was achieved. Two different types of models have been tested, a physical model and a Black Box model of Box Jenkins type. The physical model has been derived from Lagranges equations. Identification experiments have been used to compute the Black Box model and to find the unknown parameters in the physical model.

Bees are of importance for the global food security. In Europe 84% and in the World 35% of all the agricultural crops are dependent of animal pollination (Winfree et al., 2011:1). In agricultural production there is a huge lack of pollinators (Azien & Harden, 2009). A problem that is widely spread. In Sweden the problem becomes clear when looking at the statistics of the number of bee colonies during the last 20 years, where it has been a decline with 63 % (Statistiska Centralbyrån & Jordbruksverket, 2011).

Bakgrund: Code of Conduct är ett verktyg som används i syfte att förbättra arbete med Corporate Social Responsibility. Det kan beskrivas som en regelsamling för hur företag ska agera i olika situationer och kan ses som ett instrument för att skapa en socialt ansvarsfull kultur. Code of Conduct berör områden som socialt ansvar och miljö. Forskning ifrågasätter huruvida företag använder sin Code of Conduct i PR-syfte eller om företag använder den för att göra gott i samhället. Det finns svårigheter att säkerhetsställa att leverantörer lever upp till företags CoC och vad konsekvenserna blir för de leverantörer som inte efterlever denna.Syfte: Syftet är att undersöka varför företag arbetar med en CoC.  Detta för att öka kunskapen kring vad företagen gör för att fylla gapet mellan uttalad CoC och leverantörers grad av efterlevnad, samt undersöka vilka konsekvenser som uppstår vid avsaknad av efterlevnad.Metod: Studien är av kvalitativ art och har utförts genom en flerfallstudie.

This report contains a programming improvement work in a LabVIEW? fire testing furnace control system for SP Fire Technology in Borås. Here materials and products behaviour are tested and evaluated, being exposed to fire. For this task, UGNET is being used for control and surveillance of the testing furnace system. System hardware has been updated gradually through the years, while the software has been neglected.

The goal of this project was to implement and compare Invere Discrete Cosine Transform using three methods i.e. by bit parallel, digit serial and bit serial. This application describes a one dimensional Discrete Cosine Transform by bit prallel method and has been implemented by 0.35 ìm technology. When implementing a design, there are several considerations like word length etc. were taken into account.

Today wireless transmission of data is becoming more and more popular and the need for faster transmission rates is increasing. Since the bandwidth is limited it is important to try to use it to the fullest. CDMA is a technology that allows multiple accesses on the same frequency and time thus making it very bandwidth efficient. The CDMA technology was first introduced in the second generation?s cellular systems but has since then been improved and is reused in today?s 3G systems as Wideband CDMA.

In this report a system for Rapid Control Prototyping, RCP, is evaluated through animplementation of the motor control methods Field Oriented Control, FOC, and Space VectorPulse Width Modulation, SVPWM. The evaluation emphasizes on time-consumption andresource utilization on the used hardware and on usability for of software.A new mechatronic laboratory is under development at ABB Corporate Research in Västerås. Itwill be used for both mechanical and motion control design using existing and new hardware.The control structure in a traditional robot system will be interfaced to a rapid prototypingsystem which should allow easy changes to algorithms at different levels in the system.The system designated for this project comes from National Instruments and constitutesLabVIEW Real-time and FPGA module as the software tools. The hardware is a NI Single-Board RIO (Reconfigurable Input Output), sbRIO, development board including a Field-Programmable Gate Array, FPGA, from Xilinx and a microprocessor from FreescaleSemiconductor. Graphical programming is performed in the LabVIEW environment, andthrough Xilinx tools the LabVIEW FPGA code is compiled to VHDL code.A pre-study was carried out to clarify the concept of RCP and investigate different systems forRCP and their traits.

Evaporation is a part of the chemical recovery department at wood pulping mills. The purpose of evaporation is to remove water from the black liquor, which makes the liquor combustible. The process is very energy demanding, and having a well-functioning model of the system is of greatest interest. The model can then be used to study energy consumption and to test different control strategies. Two models have been developed during the master thesis.

Corporate governance intensified due to the corporate scandals in the USA which led to a new law the so called Sarbanes-Oxley Act (SOX).In 2005 the "Svensk kod för bolagsstyrning" (The Code) was introduced. The main purpose of The Code is to strengthen the confidence in Swedish companies quoted on the Stockholm Stock Exchange. The Code focuses on the working process of boards. The rules set by The Code places higher demands on the board.  Among many other duties the board has to establish long term operational goals and strategy.

With the globalization, companies in the West chose to shift production to developing countries to cut down costs. This had a major impact when child labor and very poor working conditions in these factories were discovered and led many companies to take responsibility for their suppliers and the employees by adopting voluntary so-called Codes of Conduct.There is a subtle balance to enforce improvement of working conditions for employees at suppliers´ factories and to keep costs down. On the one hand, companies would like to conduct extensive audits at their suppliers to ensure code of conduct compliance and thus protect their legitimacy. On the other hand, audits are expensive so companies would like to minimize audits to keep costs down. Companies thus have to strike a delicate balance in relation to how many and what suppliers they choose to audit.

In this bachelor thesis we have used a case study to examine the potential opportunities and obstacles an organization may have to internally implement a code of conduct with regard to the environmental guidelines. To succeed with the implementation of codes of conduct, companies need to ensure that what is provided to be implemented do this according to scheduled time targets, but also that is to be implemented in the organization actually is what is intended to be implemented, and that those that are involved in the implementation will be satisfied with result, this is because it is the employees who will follow the guidelines contained in the Code. Heide & Grönhaug (2002) argues that lack of communication is the main reason why the implementation in the business strategies fails. In this case study we have used primary data from interviews in the case company as well as secondary data from earlier research and information from the case company itself to develop our conclusions. The case study shows that the existing environmental awareness in an organization often is founded in common sense about how to act.

The aim of this master thesis was to create a dynamic model for the processes in a solid fuel boiler of the moving grate type. Another aim with the model was to keep it as simple as possible but still able to catch the dynamics of the processes in the bedplate of the boiler. The creation of the model had its origin from drying and combustion equations used in earlier modeling work of boilers. The represented model has been used to simulate different kinds of disturbances in a boiler and different ways to control the boiler. These tests show that controlling a number of parameters in the bed of the boiler is an effective way to keep the grate stable during disturbances.

This master?s thesis describes the development of a model of the catalystsystem aiming at control by an MPC. A well functioning model, which is suitable in control purpose, is important while emission legislation become more and more hard to fulfill for the car manufacturers. Much research has been done in the field of physical modeling of the system, but in this work a linear adaptive time discrete ARX-model is developed and validated.The systems tendency to change its dynamic during usage implies that the model must be adaptive. The developed model proved to be well functioning and shows promising conditions for the MPC design.