Modeling and simulation is growing ever more important in the development of new products. This thesis describes the use of Hopsan for hydraulic modeling and its use in conjunction with Simulink with the intent of using the model in a hardware-in-the-loop setup. A sensor layer has been created in Simulink to emulate all the internal sensors in a modern forklift. The details of using legacy C-code instead of a hardware MCU for a fully simulated environment, software-in-the-loop has been outlined. There are two major routes one can follow implementing software-in-the-loop, exporting the C-functions to CAPL via a export layer or creating an s-function in Simulink.

This report treats two assignments that concerns the biofuel furnace at Billerud Skärblacka AB and how these assignments were solved. The assignments were: reducing the number of CO-spikes and tuning the overfire air control loop. To reduce the number of CO-spikes the possibility that skewness in mass distribution affects the number of CO-spikes were study. The skewnwss of mass distribution was controled and adjusted with two experiments. The conclusion that was made is that the skewness of mass distribution were not sufficient enough to affect the number of CO-spikes.

Det här examensarbetet presenterar en evaluering av en Klockkorrigerare av klockpulsbredd. Den består främst av en korrigerare av klockpulsbredd (Duty Cycle Corrector DCC) och även en fördröjningslåst loop (Delayed Locked Loop DLL). Det finns många olika korrigerare av klockpulsbredden designade förut, de två populäraste arkitekturerna då har varit enkel eller dubbel återkopplings loop. Den huvudsakliga skillnaden mellan dem är att enkel återkopplings loop använder sig av en öppen loop medan den dubbla varianten istället har en stängd loop. I det här projektet kommer en ny arkitektur att presenteras.

The purpose of this thesis was to help the company Medius AB with optimization of selected parts in an existing system to minimize the execution time by implementing multithreading. The idea was to manipulate the code so that calculations could be executed at the same time. The main work in this thesis consisted of three optimizations. The first one was to reconstruct a big ?for-loop? so it would execute every loop's work in an own thread. The second optimization also was a reconstruct of a ?for-loop? so it could execute the work in different threads. The third and last optimization consisted of reconstructing a stored procedure on the database, so different parts of it each could be executed in an own thread to create data at the same time. To implement the optimizations Visual Basic .NET and its support for multithreading and connection-pools was used. The result of the optimizations meant that one of the modules could be executed more efficiently and it was 12 % faster. The other modules execution time was more efficient by 25 % faster. The meanings and requirements for this thesis are fulfilled by now letting the system make use of its resources in a better way..

Första linjens ledares roll har under de senaste åren blivit mer ansvarskrävande. Vad är då viktigt för ledare i denna position då det kommer till att åstadkomma förändring? Finns det några utmaningar första linjens ledare stöter på? Denna studie syftar till att belysa första linjens ledares upplevelse av att leda en förändringsprocess. Två frågeställningar skapades; ?Vad anser första linjens ledare som viktigt i sitt ledarskap för att kunna åstadkomma förändring?? samt ?Vilka utmaningar möter första linjens ledare i en förändringsprocess??.

This research analyzed differences in measurements of magnetic field strength and frequency response in five audio induction loops installed in rooms of wooden construction materials and five audio inductive loops installed in rooms of steel reinforced concrete constructions. The inductive loops were installed at floor level and the measurements were made at the listening height of 1.2m. Measurements of background noise, field strength and frequency response were made at fifteen different measurement points across the room. The research measurements showed that there are differences in field strength and frequency response between these two conditions, whether the audio induction loop is installed in a wooden construction or the audio induction loop is installed in a reinforced concrete construction. The results had a significance level of p=0,05..

Introduction: Reversal of a temporary loop-ileostomy is the final step after a long treatment for rectalcancer, an event that the patient has been looking forward to for a long time. Studies have shown that patients often have a significant impact on the bowel function after reversal of the stoma.Aim: To describe how the patient experienced the first time at home after reversal of a temporary loop-ileostomy due to rectalcancer. Method: Qualitative semi-structured interviews, with 15-20 patients who have undergone reversal of a temporary loop-ileostomy due to rectal cancer, will be conducted. The interviewes will be analysed using qualitative content analysis according to Graneheim & Lundman (2004). The patients will be recruited from the colorectal unit at Sahlgrenska University hospital/Östra and from the surgical unit at Kungälvs hospital.

This thesis compares the impact on disk performance in a GNU/Linux  environmentwith three encryption algorithms: AES,  Serpent and Twofish in three different implementations: DM-crypt, Loop-AES and Truecrypt. For all three algorithms a key length of 256 bits is used.The thesis shows that the least performance impact during data encryption, and thus file writing, is reached by using AES or Twofish encryption implemented in DM-crypt or TrueCrypt. The thesis shows that some data operations with a sufficiently low processor utilization barely affects disk performance at all if encrypted using the optimal implementation and algorithm.It is also discovered that the performance impact during data decryption, or file reading, can be minimized by using the most efficient implementation and algorithm. The best results are met with the AES or Twofish cipher, regardless of implementation.An important conclusion that  is  drawn is that it is hard to determine a superior encryption solution for all purposes. However, by reviewing and examining the collected data from all aspects of disk performance the AES implementation in TrueCrypt is, with small marginals, determined to be the most optimal..

The aim of this research is to find out what environmental impact a wave power park has on the Swedish west coast by creating a consultation paper (?Samrådsunderlag?) for the Lysekilproject at Uppsala University. To highlight the complexity of the problem a system analytic approach was used and illustrated by a Causal Loop Diagram.The overall assessment of the Lysekilprojects wave power park at the Swedish west coast is that it will have a low impact on the environment. This is due to the relative small size of the wave power park and some technical solutions made with the environmental aspect in mind. Artificial reefs and a sanctuary for marine species are effects created by the wave power park and in the longer term the impact will give access to an untapped source of renewable energy, wave energy.

Sammandrag Information flödar genom samtidens organisationer och behöver systematiskt kontrolleras. Genom att implementera Enterprise Resource Planning Systems, även kallat ERP-system, kan företag enklare samla upp, strukturera och utnyttja all denna flödande information i ett och samma informationssystem. Majoriteten av alla företag misslyckas dock att fullständigt integrera ERP-systemet med sina vardagliga rutiner. Tidigare forskning tyder på att den utbildning slutanvändarna får och ett kontinuerligt ifrågasättande av organisationens värderingar, även kallat double-loop learning (DLL), påverkar organisationens möjlighet till en fullständig integration. Genom en kvalitativ flerfallsstudie på olika företag inom detaljhandeln, alla användare av samma ERP-system, har denna studie undersökt vilken roll utbildningsfasen spelar för att DLL ska uppstå vid en ERP-implementation.

keywordsThis was a project about the process of animation and the presentation of looped animations in the form of a zine.My main subject for the project was to explore the possibilities of the computer program After Effects and how to incorporate the functions of this program with my hand drawn technique. I wanted to keep the hand drawn feeling and at the same time make use of all the helpful short cuts and utilities that this program had to offer. I found that this program was quite suitable for this kind of work, although I didn?t feel completely satisfied when it came to the amount of animations that I was able to put together. At the end of the project I had completed six loops (plus a older one) for the CD that came with the printed zine.Another big issue in working with this was the question of theme and content for all the different loops.

Hemp is a versatile plant with many uses that has been around for thousands of years. The plant is highly adaptable andwill cultivate in almost any soil. It has excellent remediation properties and has shown to be relatively consistent when itcomes to crop yields. The aim of this literature survey is to examine how hemp can be used to be considered asustainable energy crop in Sweden through database searches and interviews. Hemps characteristics as an energy cropand its remediation properties is evaluated and compared with other plants that are used in Sweden.

Knowledge is of great importance for organizations and it is seen as an important competitive advantage to effectively preserve knowledge within an organisation. The upcoming retirement of employees born in the 1940s poses a threat because it is believed to result in a knowledge drain. The problem of preserving knowledge within the organization lies in the fact that it is partly tacit, and therefore not possible to write down or communicate in words. The purpose of this thesis is to investigate how tacit knowledge is created in the Swedish Ministry for Foreign Affairs and the implications thereof. We examine the following research questions: Of what significance is the creation and reproduction of tacit knowledge for the Swedish Foreign Ministry? Which factors influence the creation and reproduction of tacit knowledge and why? A case study of the Swedish Ministry for Foreign Affairs has been conducted.

This project started when LIC Audio AB wanted help with development of a hearing aid for public rooms. The problem is that a lot of people suffer from some sort of hearing impairment. In places with a lot of people and background noise the problem becomes bigger and the sound seems to flow together. During the project we found the solution for the problem in the shape of a headphone. The headphone receives a signal from a preinstalled hearing loop.

As a part of Göteborg Energi?s work towards a smarter electric grid, the company has chosen to investigate the possibilities of automation in their middle voltage grid. In Europe, there are example cases where these technologies already are installed which many articles on the CIRED conference 2011 proved. Netcontrol Oy in Finland has, together with Tekla, created an automated SCADA system that Vattenfall in Finland today uses. The grid mainly consists of 10 kV open loop fed city grid and this automation is mainly designed for this type of grid.