A purchase decision can be seen as a multifaceted context that raises many unanswered questions. Understanding the consumer's evaluation of alternatives is complex and should be studied at a deeper rather than wider scale. There is a problem for retailers to understand how the consumer manages a purchase decision in a retail setting with durables goods that generates a higher effort. The aim is to describe the decision rules used by the consumer and how they are expressed in this context. A better understanding of which ones they use and how they are conveyed will help retailers to create effective marketing solutions that generate positive outcomes as increased profitability and customer satisfaction.

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.

Purpose: During the last years Real Options have been established in many areas of the day-to-day business. Recent literature also tries to address Supply Chain problems with option theory, since an efficient Supply Chain increasingly gains in importance as a significant competitive advantage. This thesis tries to answer the question, if Real Options can mitigate the costs induced by the Bullwhip Effect as one of the major problems in Supply Chains. Methodology: The authors of the thesis used a deductive approach. Based on a theoretical model utilizing Real Option contracts and under the usage of a randomly created dataset the influence of the Bullwhip Effect on the company?s business and financial structure is examined and subsequently analyzed.

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.

This study presents a methodology that enables the annual average power of a wind turbine to be increased by automatically optimizing it?s airfoil, twist and chord dis- tribution. As a part of the study the software SiteOpt has been developed. This software connects the open source software XFOIL with the blade element momen- tum theory. XFOIL gives lift and drag coefficients which enable the blade element momentum theory to predict the power of a wind turbine at different wind and ro- tational speeds.

This Masters thesis work describes a comparison between two different methods for estimation of the down channel (base station to mobile subscriber) in Wide-band Code Division Multiple Access (WCDMA). The first estimation method, Optimal Feed-forward Channel Estimation (OFCE), is a conventional method that bases the estimates on data that is known to both sender and receiver, so called pilots. The second method, Decision Directed Channel Estimation (DDCE), is an elaboration of OFCE. It also uses user data for estimation. Simulations show that DDCE, in comparison to OFCE, does not attain an improvement in signal-to-noise-ratio (SNR) for high bit error rates (BER).

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.

Municipal Real Estate Companies runs by a political boarder who makes decisions in large investments. In some cases the municipal counter have to take the decisions about big and expensive investments. A successful investment needs to be built on solid ground.Media has lately focused on energy topics as a part of the environmental discussion and the real estate companies tries to use the new technology that the market has provided. Energy investments in new buildings are not longer a small part of the energy saving program. Long-term investment demands needs large knowledge and awareness about the energy topics that have recently grown in the municipal real estate companies.

Background: High demands are today placed upon Swedish elderly care nurses as more elderly live with multimorbidity while the hospital bed capacity is becoming lower. Aim: The aim of the study was to explore nurses? perception of decision-making in situations with acutely ill patients in nursing homes and which factors may influence the decision about transferring patients to the emergency department or not. Method: This is a qualitative study with a phenomenographic approach. Semi-structured interviews have been conducted with 11 nurses working in nursing homes. The data analysis was based on Dahlgren and Fallsberg (1991) data analysis. Result: Three different description categories were presented, which describes variations of the nurses? perceptions.Feeling comfortable in making the decision; which involved the nurses feeling confident in the decision-making about transferring patients to the emergency department or not.Hesitant in making the decision; which described how nurses perceived the decision-making as problematic, with regard to transferring patients to the emergency department.Many wishes to consider in taking the decision; which explained how nurses? decision-making was influenced by requests from the patients or from people close to them.Conclusion:  The study reflected how  supporting and aggravating factors could influence how nurses in nursing homes perceived the decision-making and how nurses have to take in consideration different opinions concerning the decision making process of transferring patients to the emergency department or not.

Violence is put in a specific context when the police are the perpetrator of violence rendering violence possibly legitimate through sovereignty. The possibility of legitimization of police violence raises important questions of how such violence is legitimized and how resistance is conceived of and defined. I have interviewed seven people in Sweden from different backgrounds, all of whom share the experience of having been subjugated to police violence, including threats, harassments and physical violence.This paper analyzes the performativity of police violence through the relations between police violence, power, sovereignty, subjectstatus and resistance, in order to understand how police violence is being legitimized and to understand its consequenses with respect to those subjugated to it. I?ve also analyzed if this violence is being politicized and, in that case, how politicization is made possible.

This study aims to investigate the political reformation of the psychiatric care in Sweden, that took place 1995. The main purpose is to illuminate the transformation of subjectivity for mentally ill people after the reform 1995. The group of people which are present in the study are those who former were subjects of care in psychiatric hospitals, but with regarding to the reform have moved out from the institutions and instead become clients for community care. This new group of mentally ill people became, in connection with the reform, subjects for a new concept psykiskt funktionshinder. This new label and concept, that were attached to the present group, is the main concept for the investigation in the present study. The method, that was used in the study, develops a textual based analysis of the official documents, that were produced in connection with the political decision to reform the care of mentally ill people. With a theoretical conceptuality taken from Michel Foucault, with concepts such as discourse, power, and subjectivity, are the documents analysed in order to illuminate how the new subjectivity, under the concept of psykiskt funktionshinder arise.

Today?s wind power plants are only compensated for their reactive power consumption at no-load. As the wind power plants grow bigger the amount of reactive power they need also increases. This is no longer a problem that can be ignored, especially as the net owners are beginning to charge the reactive power they transport.In this thesis a couple of different methods of compensation and their prices will be discussed and evaluated. Problems, such as self-excitation, that can occur if one fully compensates the wind power plant will also be brought to surface.

Today?s wind power plants are only compensated for their reactive power consumption at no-load. As the wind power plants grow bigger the amount of reactive power they need also increases. This is no longer a problem that can be ignored, especially as the net owners are beginning to charge the reactive power they transport.In this thesis a couple of different methods of compensation and their prices will be discussed and evaluated. Problems, such as self-excitation, that can occur if one fully compensates the wind power plant will also be brought to surface.

Driveability analysis of terrain data offers an important technique for decision support for all kinds of movements in the terrain. The work described in this report uses a high resolution digital terrain model generated from the laser radar data and further processed by the Category Viewer program, and information from the Real Estate Map. Properties of features found in a filtering process are calculated and compared with a set of rules in a knowledge base to get a driveability cost. This cost is then visualized in a graphical user interface. An evaluation of what driveability is and what it is affected by is performed, and a general cost function is developed, which can be used even if not all relevant information is available.

Sweden has been a member of the European Union since 1995 and the power of the organisation to make decisions has increased over the years in a rate which hasn?t been followed by an equally increase in democratization. This is partly due to the lack of participation in the decision making process and at the national level the citizens don?t possess enough channels to compensate the loss of influence. To solve this democratic dilemma, more and more countries are turning to the referendum.