By applying a segmentation procedure to two different sets of computed tomography scans, two geometrical models of the abdominal aorta, containing one inlet and two outlets have been constructed. One of these depicts a healthy blood vessel while the other displays one afflicted with a Abdominal Aortic Aneurysm. After inputting these geometries into the computational dynamics software FLUENT, six simulations of laminar, stationary flow of a fluid that was assumed to be Newtonian were performed. The mass flow rate across the model outlet boundaries was varied for the different simulations to produce a basis for a parameter analysis study. The segmentation data was also used as input data to a surface description procedure which produced not only the surface itself, but also the first and second directional derivatives in every one of its defining spatial data points.

This literature study concerned the use and function of the radioactive isotope carbon-14, as a dating method of organic material, within the scientific field of physical geography. In this report it is presented the need of atmospheric calibration curves and the development of these as a necessity to translate carbon-14 years to calibrated calendar years. A number of common age-depth models that is used to give an approximation of an accumulation sequence and its related dates over the actual time period in different natural archives is presented and discussed. Different problems that commonly occur when age-depth models are utilized as for instance reservoir effects, contaminations or other age deviations are addressed and analyzed. The software CLAM in presented and discussed and was also used to produce age-depth models.

Companies that sell digital products such as software and movies transfer large amounts of data to its customers. In order to send this amount of data using FTP or HTTP and still maintain a high speed transfer rate it is required that the company have a large number of servers and a huge bandwidth. Servers and bandwidth costs money which means they have great costs on the distribution of their products. In order to reduce distribution costs, P2P technology can be used and the most powerful technology to transmit popular files is called BitTorrent.BitTorrent requires users to share their bandwidth. Nowadays, BitTorrent is frequently used to transfer products that are free of charge; one example is the Linux distribution Ubuntu.

This thesis deals with an iterative user-centered IT-development project in a bank setting. The aim is to present a solution for deployment of future Internet banking for small businesses. The project features a design of IT-related concepts and ideas with a strong emphasis on scenario-based design and the usage of patterns as a documentation tool.The project plan featured an iterative framework and was carried out by a group of designers in collaboration with a reference group representing the future users of the system. This group consisted of company managers and bank employees, all from the small town of Åtvidaberg in Sweden.The method used in the development process was Scrum. A total of three sprints were completed with user meetings at the end of every sprint.

Spelmotor är benämningen på den komponent som hanterar en del av mekaniken i ett datorspel. Förutom funktioner för grafik, fysik etc. finns också funktioner för rörelser, interaktion med världen etc. I detta examensarbete går vi in på hur en spelmotor för morgondagens mobiltelefon kan se ut, samt vad dagens mobiltelefoners hårdvara och mjukvara saknar för att dagens PC-spel ska kunna portas till dem. Stödet för att spela avancerade spel på mobiltelefoner växer ständigt och inom några år bör hårdvaran vara ungefär densamma som på PC.

In recent years seemingly everything has become digital. Some areas, like classical sports, have been slower to adapt to new technical development. Golf is an example of this. Usually when people play golf they bring their clubs, golf balls and a paper scorecard on to the golf course. The advantages of keeping score in a digital way areevident.

Photovoltaic Systems in Sweden has longbeen heavily dependent on subsidies and grants to bring in a profit for the investor. Production of excess electricity is a major reason for this as the compensation for excess electricity today is low. However, there are businesses that have an electricityneed that are particularly suitable for solar electricity. These businesses have an electricity demand when the sun shines the brightest and if the Photovoltaic System is properly scaled, the excess electricity can be minimized. A golf club is that kind of a business and this thesis aims to examinate the solar power potential for golf businesses in Sweden.Nine golf clubs was selected from different locations in Sweden.

This thesis work includes studies and simulation how magnetization of the translator in a linear generator for wave power can be automated. The translator is the moving component in the generator that is "dressed" with permanent magnets. The translator is magnetized with rectangle-shaped permanent magnets that are today's strongest permanent magnet type of neodymium-iron-boron (NdFeB).Eight equivalent metal sheets are mounted around the translator. The plates have milled tracks where 106 permanent magnets per sheet are mounted. Today the assembling of the magnets is done by hand, which is a very tedious and time-consuming work.  This project presents investigations about the automation of the translator magnetization theoretically and simulation results are preformed in ABB's robot simulation software RobotStudio. Even robot-held tool was designed that enables the robot to be able to magnetize the translator in a simple manner.  The investment cost is roughly 1.5 million SEK. With an economic life-time of five years, the investment costs are estimated to 24000 SEK / month.  According to the calculations, this project is very motivated to implement, as it provides savings up to 17 000 SEK per translator which is 10.2 million SEK assuming that the robot cell is operating at full speed the whole year.According to this thesis work the result is a 4x9 meter cell with two industrial robots of the type ABB IRB6650S.The cycle time to magnetize one translator was calculated to about 10 hours.This prototype of project can possibly be implemented in a full-scale production line and performed according to the calculations and simulations presented in the report. Further work is suggested to improve the tool.Lyssna .

Background: Companies and organizations of today spend large amounts of money on IT-based business solutions. Such business solutions normally include business- consulting and software-creation (IT-related services). Due to the rapid development of the technology within this field of business the IT-customers find it difficult to select among potential suppliers on objective grounds.Purpose: To increase the understanding for the professionl approach of the people involved in the sales- and purchase process of IT-related services in a business-to-business context. The study is taking the buyers'as well as the sellers'perspective into account when analyzing the process. Method: The empirical findings were collected from eight companies in Linköping and Stockholm.

With the climate change issues growing in importance on the social agenda, the field of urban masterplanning is of no exception when it comes to minimizing the carbon footprint in a variety of projects. The aim of this thesis has been to prepare the Carbon Critical Masterplanning tool, a software plugin for carbon dioxide emissions assessment developed by Atkins, to be used in Swedish conditions. The main targets were to improve the areas of the tool associated with energy conversion and renewable energy sources, and to test the tool in a real case. A planned construction of a new campus in Albano, Stockholm was chosen for the pilot study. A 3D model was built in the tool and the carbon footprint was calculated for a variety of combinations for energy supply to the future area.

Detta kandidatarbetet är utfört på ett bolag som verkar i telekommunikationsbranschen. Operatörerna på kundtjänst arbetar med att ta emot samtal från Telekombolagets kunder, hjälpa dem med att lösa problem och ge tips och råd. En viktig del av arbetet är att operatörerna gör en analys av kunden för att kunna ge bästa möjliga råd. Rapporten behandlar hur en del av ett textbaserat program kan omarbetas till en grafisk applikation. Etnografiska metoder, i form av observationsstudier och intervjuer, och designtekniker, i form av mockup- och prototypmöten, har använts tillsammans med användarna av programmet.

Detta kandidatarbetet är utfört på ett bolag som verkar i telekommunikationsbranschen. Operatörerna på kundtjänst arbetar med att ta emot samtal från Telekombolagets kunder, hjälpa dem med att lösa problem och ge tips och råd. En viktig del av arbetet är att operatörerna gör en analys av kunden för att kunna ge bästa möjliga råd. Rapporten behandlar hur en del av ett textbaserat program kan omarbetas till en grafisk applikation. Etnografiska metoder, i form av observationsstudier och intervjuer, och designtekniker, i form av mockup- och prototypmöten, har använts tillsammans med användarna av programmet.

Competition of spruce fiber raw materials has increased dramatically in the last few years, leading to the fact that transportation costs in the current situation represents a much larger share of the total raw material cost. The Holmen-owned pulp industry Hallsta Paper Mill's location on the coast also constitutes a problem, because of the lack of raw material, which is much larger there, than for a pulp mill located in the hinterland. For a coastal industry it?s therefore natural to import much of the raw material by boat or to buy it from the timber terminals, in order to maintain good profitability. The purpose of this study was to analyze how the size of Hallsta Paper Mill timber supply area, without competition, with competition and with terminal use, affects the company ?s transport costs.

SCA is the largest private owned forest owner in Sweden, with an ownership of 2 million hectares of productive forestland. To manage the planning of such large areas and to fit the traditional organization structure of a Swedish forest company, the planning approach is subdivided into three stages; strategic, tactical and operational. The strategic part, based on a statistic sample of stands, returns a harvest level estimate which should then be implemented at actual sites in the tactical part. This procedure can lead to incompatible solutions as the strategic solution is not necessarily possible to translate into actual sites in the tactical plan. The geographic aspect is important in tactical planning due to the large costs for moving equipment and maintenance of a large number of forest roads.

Den tekniska utvecklingen driver fram allt mer avancerade datorsystem. Samtidigt ställs allt större krav på stabilitet och flexibilitet i de operativsystem som ska användas på dessa system. De senaste årtiondena har micro kernel arkitekturen varit föremål för intensiv forskning och det finns idag ett flertal operativsystem på marknaden som använder denna arkitektur. Traditionella monolitiska operativsystem är relativt resurskrävande system som ofta anklagats för att sakna struktur. Micro kernel baserade system är en lösning på detta problem där man bantat ner kernel till så lite som ett tiotal kilobyte och flyttar ut tjänster som normalt ligger i kernel till user space. Solaris och Linux bygger på en utveckling av monolitisk kernel där man byggt operativsystemet i ett antal sinsemellan beroende lager vilket bidrar till ökad struktur i systemet. Flexibilitet uppnås i dessa system genom att man lägger till funktionalitet för att under exekvering länka in ny kod i kernel. Windows NT och Mac OS X är baserade på micro kernel arkitektur.