This report is a description of a developed educational simulator over rail vehicles and its components. The simulator is a hardware-based prototype over a door system on rail vehi- cles. System specialists and technicians will use the prototype. The Simulator should give the user a technical demonstration on how components work in a door system. The proto- type consists of motor, switch, relay and sensor.

The report aims to describe the austenitic stainless steel Sanicro 25 from a thermomechanical point of view. The thermal and mechanical properties of the material make it suitable for use in coal ? and thermal power plants. By the use of Sanicro 25 it would be possible to bring the efficiency of these plants up while bringing the carbon emissions down.A material model is created from material testing and validated through simulation in the finite element software Abaqus. The model that has been derived describes the material behavior during loading and stress relaxation for the first cycle in a thermomechanical fatigue test well.

The purpose of this project was to design an adjustable gutter bracket for Lindab Profil AB. Lindab currently manufacture a gutter bracket that is adjustable in angle, however, this model has some drawbacks.  One of it´s shortcomings is that it is somewhat difficult for the customer to mount.  Another problem with Lindab?s current model is that the design makes manufacturing unnecessarily complex. The new gutter bracket, that we have constructed, does not have these problems. It is adjustable for different roof pitches.

There are about 700 000 dogs in Sweden. Roughly 70 % of the dogs are purebred and registered in the database at the Swedish Kennel Club (SKC). The database includes records of birth date, pedigree, offspring and results from e.g. veterinary examinations related to genetic health programs.Every year approximately 10% of the dogs die; most are euthanized by a veterinarian. Dog mortality data is stored as digital medical records at animal clinics and in insurance databases.Dog owners tend to register their puppy in the SKC, but they rarely report that the dog has passed away.

During the development of microwave based sensors such as radar target seekers, input signals are needed to verify the performance of the system. Therefore, a channel board has been developed by previous thesis projects at Saab Bofors Dynamics. It uses a technique called Digital Radio Frequency Memory (DRFM). The purpose of this board is to sample and digitally store radio frequency signals in order to reconstruct them after a certain delay.The aim of this thesis project was to use the channel board named above to construct a portable instrument for generation of stimuli signals. This assignment has been divided into two tasks: firstly, to construct and put together the hardware components and secondly, to implement a graphical user interface for the instrument.

In Sweden whenever trains or maintenance workers want access to the railway system, their requests of usage and movements are being supervised, granted and handled by train dispatchers. The profession holds a key role in making the complex railway system work in terms of efficiency, safety and delivering on-time arrivals. This master thesis, delegated by the Swedish Transport Administration, has been carried out at the Division of Human Computer Interaction at Uppsala University and at the train traffic control center in Gävle. The aim has been to map what information the train dispatchers use in order to make safety-related decisions concerning their working goals. And further to describe and analyze how the train dispatchers, visavi their tools and systems in the work domain, gather necessary information.The result indicates a complex, diverse and spread out setting of different programs, procedures and tools that make satisfactory fulfilment of efficiency, safety and punctuality in relation to the time table hard.

This thesis aims to propose a plausible design and construction of the lost gable pediments of the Glassworks Villa in F?glavik, anno 1875. Through a combination of building inspections, photo analysis and 3D modeling, the researcher utilizes the combined results to digitally recreate the decoration that once adorned the gothic revival villa's gable, to serve as basis for its actual reconstruction. The study further highlights the use of modern technological tools, such as 3D modeling software, to further enhance the understanding of historical architectural elements. The researcher also emphasizes the challenges and considerations involved in preserving and reconstructing historical architectural details for future conservation endeavors..

Detta arbete ämnar undersöka problem och utmaningar relaterade till design- och produktion av ett tävlingsinriktat spel för gratis utgivning samt utforska potentiella lösningar och designfilosofier genom att påbörja utveckling av ett spel. Problem som uppstår, lösningar som tillämpas och val som görs dokumenteras varpå resultat analyseras. Undersökningen tar upp design av både spelmekaniska och grafiska element samt produktionen av spelet och dess resurser, saker som är viktiga att tänka på och några saker som kan gå fel..

The idea to develop  a platform for a PID-controller came from the need to control the temperature in  an espresso machine in a more exact way than a thermostat could perform. In discussions with Syntronic AB the idea developed into PID-control for industrial use. Syntronic AB suggested that the platform should be based on a commercially available processor module to shorten the development time. The suggestion included the use of the microcomputer Raspberry Pi, which supports USB, HDMI, memory card and Ethernet.The work began with establishing a schedule for the 10 weeks of the projects duration, and after that a system specification listing all functions, implementation and limitations was made. When the foundation of the system specification was done, a preliminary system design took shape.Because of the Raspberry Pi´s lack of Analog-to-Digital converter, a circuit board containing Wheatstone bridges, differential amplifiers and a two channel Analog-to-Digital converter was fabricated.

Vi började vårt projekt med grunderna till verktyg för att utveckla spel i 2d. Dessa ämnade vi färdigställa under projektet och med dem utveckla en speldemo. Eftersom vi hade gemensamma visioner om spelutveckling så bestämde vi oss för att samarbeta, och fokusera på våra respektive områden. Med att utveckla egna verktyg ville vi få en större förståelse för de grundläggande mekanismerna av en spelmotor och möjligheten att påverka dessa efter våra specifika behov. Det var också för att hålla koden fri från licensierade komponenter för att i framtiden kunna underlätta distribution..

This essay aims to explore the philosophical meaning of the expression ?present and real? in Clara ? or, On Nature?s Connection to the Spirit World by F. W. J. Schelling.

The report is the result of a master thesis at ENEA AB during the fall of 2009. Itaims to create a specification of flash memory management system which focuseson power efficiency and low RAM usage for embedded systems, and to design andimplement a prototype of such a system to facilitate further development toward thecreated specification. The system used by ENEA today is a Flash Translation Layer(FTL). It has a complex structure which prohibits modifications and customization,therefore a new flash memory management system needs to be developed.The suggested solution uses a translation layer called Metadata FTL (MFTL), wherefile system metadata and userdata are separated from each other in order to improveperformance. The partition holding userdata uses a block-level mapped translationlayer system called Fully Associative Sector Translation FTL.

This thesis gives the reader an understanding for newsletters within e-commerce, and how to work with them as a channel for marketing. Furthermore it explains the technical and graphical demands, and how to ensure that the newsletter reaches the intended receivers.A successful newsletter can entice people to shop, but can also help to strengthen a brand and the relationship between the customer and the company. During the writing of the thesis, it has emerged that the most important part of a newsletter (which also determine whether or not the receiver reads the letter) are the subject heading, sender, layout, headlines,images and the deregistration link.A part from working with the different parts of the letter, the sender should also be aware of the technical and graphical demands. Since the E-mail clients are looking out forimages, fonts that are not embedded in the computer, and for questionable words there?s a big risk for ending up in a spam filter when not considering the demands.

En trend i den teknologiska utvecklingen på senare tid har varit att skapa en ökad rörlighet hos användaren. En bidragande faktor till detta är den snabba förbättringstakten hos de smartphones som i större utsträckning har funktionalitet som tidigare endast datorer hade. Detta har i sin tur förändrat de förväntningar slutanvändarna har på tjänsters tillgänglighet, vilket har lett till att produktiva mobila applikationer, appar, har funnit sin plats i vardagen.Denna studie är genomförd på Scanias Fleet Management-avdelning som erbjuder en webbaserad tjänst där åkerier kan administrera, övervaka och följa upp sina fordonsflottor. Syftet med studien var att undersöka om en förlängning av Scanias existerande webbtjänst till den mobila sfären är rätt steg att ta och vilka organisatoriska och tekniska utmaningar en ingång inom apputveckling ger upphov till. För att bemöta denna problematik har en omfattande kvalitativ undersökning genomförts där tre huvudgrupper av respondenter har intervjuats: jämförbara företag som har ställts inför liknande utmaningar, apputvecklingsföretag som har förståelse för appområdet samt Fleet Management-tjänstens existerande användare.

Because of new emission and on board diagnostics legislations, heavy truck manufacturers are facing new challenges when it comes to improving the engines and the control software. Accurate and real time executable engine models are essential in this work. One successful way of lowering the NOx emissions is to use Exhaust Gas Recirculation (EGR). The objective of this thesis is to create a mean value model for Scania's next generation EGR system consisting of a poppet valve and a two stage cooler. The model will be used to extend an existing mean value engine model.