Both the German and the Nordic power markets are seeing dramatically changed conditions due to an ongoing process of expanding the share of renewable production in the systems. For the German part this comes from heavy subsidies which have led to an explosive development in installed capacity of photovoltaic and wind based production. After the Fukushima incident it has been decided to shut down all Germanys nuclear plants. This capacity drop is however not of the same magnitude as the increase in renewables, but will impact the stability of the power system. The Nordic power system which already has a surplus of power sees an even further increase, coming mainly from construction of new nuclear plants in Finland and a general increase in wind farms.

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..

In public libraries there seems to be an unspoken consensus on what literary quality is. At the same time librarians are always eager to express the opinion that quality lies in the eye of the beholder. Quality is, it is said, something that you don t have to define. But at the same time it s up to everyone to decide what quality means to them. What I have been missing from the discussion in libraries about literary quality is a theoretical awareness about what it means to divide literature into higher and lower spheres.

Quality Assurance in Service Procurement --- Total Quality and Total Quality Management refer to popular management philosophies in organizations these days. The purchasing department has an important part in the strive for organizational quality as several studies show corporate spend is significant and increasing. In this master thesis I study the actions companies take to ensure quality in service procurement. I argue that managing quality when sourcing services is particularly tricky, because of the special characteristics that belong to services. The purpose of the study is to examine whether different actions are taken to ensure the quality of different kinds of services.

ABSTRACT Behavioural problems are a compound conception for emotional difficulties at different levels. Individuals with behavioural problems could have difficulties with social relations, low self-esteem, anxiety and worry. The purpose with the examination was to describe how clients apprehend their behavioural problems and what they consider could be the causes of it. The examination was based on the qualitative interviews with 5 clients and a professional helper. We came in contact with our clients through our practice.

The care for the elderly in the municipalities has recently seen the need for a formalized system for quality assurance. Under increasing demands for monetary efficiency while bound by law to retain acceptable standards in health care, there is need for efficient and at the same time quality-assured management. The municipalities often solve this puzzle by introducing systems and standards influenced by theory-clusters such as NPM (New Public Management), TQM (Total Quality Management) or other quality management theories.This essay focuses on how the public administration in the municipalities defines quality and designs and implements system for formalized quality assurance. Our basic view of organizations is institutionalist and our theoretical framework includes theories about quality, NPM and TQM..

Systematic quality work in preschool ? How preschool teachers thinking and working with systematic quality work The purpose of this study was to investigate how Swedish preschool teachers thinking and working with systematic quality work. All Swedish preschools are required to work systematically with quality. This involves several steps that follow each other in a specific order. It includes following up, documenting and evaluating preschool activities.

The purpose of this study is to describe and analyze how auditors are affected by quality controls and if audit practice changes because of quality controls. To fulfill the purpose of this study there has been interviews made with five auditors. The conclusion by this study is that the interviewed auditors work practices are affected by quality controls and that the extent and effect depends on the auditor and the office that the auditor works in. The auditors who worked as quality reviewers at the agencies where they are employed at, we felt that they were more secured in the response towards quality controls. This may be because they are quality reviewers themselves and they know what the quality control requires and what must be met to be approved.

With background in the rapidly growing need to find solutions for sustainable energy production and the increasing interest for wind power, this report was written. With take-off point from the wind power plant Big Glenn, which has been built in the harbour of Gothenburg, a model of the adjacent power grid has been created in Simulink/SimPowerSystems. Parameters for the power grid and its components has been provided by Göteborg Energi Nät, that has also been the supplier of measurement data of produced power, the power need from loads in the vicinity, voltage levels, current values and also the variation of power factor at the wind power plant.The SimPowerSystems model has been used to perform simulations of power flow in the grid. These simulated values have then been compared to the measured values to verify the functionality of the model. Further, the model has been used to perform simulations of a grid fault, which causes a voltage drop.

Bachelor thesis ? ControllerEconomics, Linneaus UniversityTitle:From data to information ? a case study at Södra Cell Mönsterås Authors:Sofie Gotting, Renée Lundberg and Emma Molin Tutor: Anders Jerreling Examiner: Fredrik Karlsson In Sweden, the process industries employs nearly 600 000 people and it accounts for about 60 percent of the country's net export. In many industries today, there is a growing emphasis on calculations. They are used to manage and control the activities in today?s organizations, one of these industries is the process industry.

The technological legacy from the early electrification of the Swedish railroads has resulted in a power grid with a lower grid frequency than the national power grid from which it is fed. Energy transfer between these power grids with different frequencies requires substations, adapting the grid frequency for the rail road power grid. For this purpose, a feeding power grid has been built, stretching across the country from Boden in the north to Tälle/Häggvik in the south.Power transfer in the Swedish power grid results in voltage angle differences which increase with increasing loads and transfer distance. These voltage angle differences are transferred from the power feeding substations to the rail road power grid, will in some extent cause loss of energy due to unwanted power flows from north to south.To minimize the losses due to this phenomenon, a power management system called EFS 132 kV has been developed and implemented. The system minimizes the unwanted power flows and controls the desired power flow for a good distribution of loads between the power feeding substations.This thesis investigates the extent of the transmission losses avoided due to the EFS 132 kV that coordinates the idling angles to a common reference point.The results indicate that EFS 132 kV affects the power flow, especially between the northern substations through an improved load distribution.

The purpose of this essay was to investigate socialworker's perception of threats and violence in their daily work from the perspective of power. In order to obtain as clear and distinct responses as possible, I used qualitative interviews for this study. The respondents represent a "socialförvaltning" that handles financial assistance in a medium-sized city. This department was chosen because the socialworkers that handle financial assistance at this department have been identified by the media as particularly vulnerable. The study showed that verbal threats are commonplace but physical violence is rare.

Orust Kretsloppsakademi is a nonprofit organisation, with a goal of annually generate the same amount of electrical energy that is consumed. Orust is an island on the west coast of Sweden, north of Gothenburg. The population of 15 000 reaches 40 000 during summer, due to the large amount of vacationer. The total electricity demand is 174 GWh a year with a maximum power need of 32 MW. This report presents an analysis for the plausibility of their plan and from a power system stability perspective, the effects on the electrical grid.The conclusion is that the restraints for development of power generation from wind, solar and wave generation, are the power systems capability to transfer power, primarily in the transformers of the grid.

Our purpose was to investigate which readiness, different sectors in a minor city has to meet honour-related problems. We wanted to investigate how they manage honour-related problems and how the co-operation in these cases is between different authorities. Our questions at issue were: Which knowledge's, experiences there are about the culture of honour, which resources has the authorities and how is the co-operation between different organisations work?We have collected present documentation and research about the subject. We made eight quality interviews with different persons within professions, as we understood, came in contact with cultures of honour.

The purpose of the study was based on scientific literature to describe the quality of life of persons who have undergone a total hip replacement. The method was a descriptive literature review. The results showed that pain was the most obvious change after surgery. Mild pain before surgery was strongly associated with mild pain after surgery. But despite less pain were experienced early, it took 1 year to achieve the full benefits of improved physical function.