GPGPU is a collective term for research involving general computation on graphics cards. A modern graphics card typically provides more than ten times the computational power of an ordinary PC processor. This is a result of the high demands for speed and image quality in computer games.This thesis investigates the possibility of exploiting this computational power for image processing purposes. Three well known methods where implemented on a graphics card: FFT (Fast Fourier Transform), KLT (Kanade Lucas Tomasi point tracking) and the generation of scale pyramids. All algorithms where successfully implemented and they are tree to ten times faster than correspondning optimized CPU implementation..

This report describes an analysis of WebGL together with JavaScript with the aim to examine its limitations, strengths and weaknesses. This analysis was performed by building a 2D game engine containing some dynamic elements such as water, smoke, fire, light, and more. Different algorithms have been tested and analyzed to provide a clearer picture of how these work together. The report will go through the most basic functions of the game engine and describe briefly how these work.The result shows that JavaScript with WebGL can be considered to be a potent toolsets, despite the difficulties caused by JavaScript.In summary, similar projects can be recommended as Javascript and WebGL proved both fun and incredibly rewarding to work with..

På några år har användningen av IP-telefoni inom svenska företag tredubblats och vi börjar nu se ett attitydskifte gentemot en teknik som länge dragits med dåligt rykte på grund av kvalitetsbrister.IP-telefoni är ett resultat av att data- och telefonikommunikation vävs samman och att kapaciteten i nätverken ökar. Detta medför att man genom att införa IP-telefoni kan genomföra kostnadsbesparingar och effektivisering. Men tekniken erbjuder även ökad funktionalitet och därmed även mervärde för organisationer som använder IP-telefoni. Inser organisationer detta och utnyttjar man fördelarna med tekniken för att skapa acceptans inom organisationen?Syftet är att undersöka vilka faktorer som motiverar en övergång från kretskopplad telefoni till IP-telefoni, och hur man inom en organisation skapar acceptans för den nya tekniken.Syftet har uppfyllts genom en kvalitativ studie som byggt på semi-standardiserade intervjuer.

The Uppsala based company Q-linea develops procedures, instruments and systems for protein and nucleic acid analysis. The components in such an instrument are controlled by microcontrollers. Microcontrollers are computers in one singular chip that can be used in a wide range of applications such as cars, toys or in this case an analysis instrument. When developing a new instrument for biochemical analysis, Q-linea needed new software for controlling and communicating between the components in the instrument. The process of developing this software is the subject of this thesis.The project included research of microcontrollers and the components in the instrument.

In this composition, a study of consignment inventory on basis of the factors which are important for implementation and application of consignment inventory are made. Logistics chain from subcontractor to end customer is becoming more complex when the volume of items constantly increases to satisfy the needs of the market. From that perspective, companies had large inventories but today it is a lot of different solutions to streamline inventory management. One way that recently becomes increasingly common is to let the subcontractor fill up the customers stock using different approaches such as VMI (Vendor Managed Inventory). A further step in the evolution can be to make use of consignment inventory where the vendor owns the stock of the customer.

Dynamisk binär översättning är en teknik för att köra program kompilerade för en plattform på en annan inkompatibel plattform. Tekniken finns bland annat implementerad i många konsolemulatorer, men det finns även andra exempel där tekniken använts, t.ex. vid arkitekturskiften. Nära besläktade områden är dynamisk kompilering och dynamisk optimering. För att undersöka tekniken (dynamisk översättning) närmare implementerades den i en, redan färdig, interpretativ (switch-baserad) Chip-8 emulator.

En mätserie utfördes på en entreprenadmaskin där entreprenadmaskinen var en tandemvält. Data som spelades in på en DAT-bandspelare var motorns rotationsfrekvens, valsarnas vibrationer samt ljudfältet i kabinen. Den insamlade datamängden analyserades m.a.p dess spektra samt ljudnivåer. Vidare predikterades resultat till implementering av det adaptiva systemet ur dessa insamlade data. Viss laboration utfördes på en modell av det adaptiva systemet m.h.a insamlade data.

As emission legislations across the world continuously pushes engine development forward,engineers constantly need to come up with and implement fuel saving technologies. During thelast decade, variable cam phasing has become a popular solution to increase gas exchangeefficiency. This configuration is typically mechanically constrained by camshaft limitations, anda solution to circumvent this problem would be to use a different valve actuation principle.One example of this is to use pressurized air controlled by electrical solenoids. Such a systemhas been developed byCargine Engineering and this provides the starting point for this work. Tobe able to operate the valvetrain on an actual engine, a control system is needed.

This 3d navigation application is a part of a project that helps the user to learn and find the right position on a map with many exercises, the user has a compass nearby that he/she can use to find the position that requires to get the right answer on that particular exercise. Macromedia's Director is used for the creating of the program, where Lingo has a importent part as the script language for the scenes in Director. A 3D scene is build up with codes in Lingo, a few 3d models and serveral overlays are created and displayed on the screen. Different kind of textures from pict files are is representing the overlays and put on the 3D models. That give the user a more pleasant experience when going through the exercises that helpes the user when he/she is going to navigate on a boat at sea..

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.

Den här rapporten täcker ett examensarbete som gick ut på att kartlägga och utvärdera användarfilosofin i ROS som utvecklas av Sandvik Systems Development. ROS, RåvaruOptimeringsSystem, används som stöd till produktionen på Sandvik AB:s stålverk. Det primära målet som sattes upp för arbetet var att visa om det går att skapa en koppling mellan ROS och Sandviks Active Directory för att på så sätt slippa skilda lösenord mellan systemen. Rapporten följer arbetet från att ta fram modeller av nya metoder för användarhantering till implementering av några prototyper i en testmiljö. Rapporten tar även upp vilka nya metoder och tekniker som måste skapas för att en fullständig implementation av systemlösningen ska kunna göras..

Sudoku solvers are a widely researched topic among mathematicians and computer scientists. This report investigates the differences in execution time and time complexity between backtracking and human strategies for classes with 17-21 clues. Backtracking is compared to our implementation of human strategies with test data that contains 99 Sudoku puzzles for each class. The study shows that the execution time and time complexity is improved for human strategies compared to backtracking for each class. The conclusion shows that it is always favorable to implement the human strategies investigated in the report. .

Randomness is a complex area of computer science, where only pseudo random numbers are possible to generate algorithmically.This report presents established algorithms for random number generation by conducting a basic study of relevant literature, while testing distribution and speed of the algorithms contained within the C++11 Random library. The results are compared to the algorithm XORShift and a modified version of it. The study shows that the modified algorithm passes all tests in Small Crush, andthat the run time is shorter than for those in the Random library. The conclusion is that it is possible to, with simple means, modify an algorithm to outperform the algorithms of the C++11 Random library..

I dagsläget växer behovet av rätt information vid rätt plats, kontextbaserad information. Med hjälp av iBeacon kan man till en stor utsträckning förse det här behovet med en lösning. I uppsatsen undersöks användningsområden för iBeacon och idéer för hur man kan utveckla lösningar med hjälp av iBeacon. Ett koncept kommer att implementeras för att distribuera kontextbaserad information på mässor. Konceptet utvecklades till iOS och Android.

Event is something that an increasing number of Swedish cities are investing in since it contributes to higher attractiveness of cities and generate economic revenues. New arenas are built around Sweden to meet the increasing demands to host such events. Event projects are carried out in Sweden and it is important that the planning phase is carried out thoroughly to get a successful project. This thesis aims to look more closely at selected organizations and how they plan their projects and whether it is possible to follow project plans in the event projects. Karlstad has many events that recur annually, including the Swedish Rally.