This master's theses was carried out on assignment from Stockholm Vatten AB as a part of a project developing new waste water treatment techniques. The goal of the theisis has been to evaluate an anaerobic membrane bioreactor for treatment of waste water from Hammarby Sjöstad. The bioreactor has not been heated and the main interest has been to study the gas production, power consumption and the reduction of organic matter and nutrients.The system has been completed with a reverse osmosis unit and a total of four batch runs have been made with good results. The use of reverse osmosis allows nutrient in the waste water to be reintroduced into circulation as the reverse osmosis concentrate can be used as crop nutrient.The membrane unit is of VSEP ("Vibratory Shear Enhanced Processing") type and an extensive membrane test has been conducted. This so called L-test helped determine the most suitable type of membrane for the system to allow a higher ±ux and thus lower power consumption.

Real-time systems are required to answer to external stimuli within a specified time-period. For this to be possible, the systems behaviour must be predictable. The use of active databases in real-time systems introduces unpredictability in the system, e.g. due to their use of active rules. The behaviour in active databases is usually specified in ECA-rules.

This project has created a web-application for the service technicians at the paper plant Gruvön. The project was outsourced to the IT-company Sogeti.The application visualizes information about reparation-work of the equipment at the paper plant. The displayed information is work-orders, the status of the work-orders and errors. It is also possible to see the costs and hours spent on reparation-work.. The work-orders and related information is stored in a relational database.The application is created mainly for web-browsers in mobile-phones and tablets.

Den här rapporten har som syfte att utreda vilket eldistributionssystem för offshoreenheter som sparar mest vikt och utrymme. De två elsystem som jämförs är GVAs standard system och Siemens Blue Drive System. Rapporten innehåller en teoretisk bakgrund för båda systemen och dimensionering av systemens kraftkablar samt beräkning av kabelvikter och komponentvikten för systemen. För att uppskatta kabel- rutter och längder kommer ritningsunderlag för GVAs offshoreenhet 7500 att användas.Resultatet visar att GVAs standard system är det eldistributionssystem som har den lägsta totalvikten med 168 ton, GVAs standard system har en vikt som är 101 ton lägre än Siemens Blue Drive System som har en vikt på är 269 ton. GVAs standard system har en lägre ström vilket gör att ledararean blir mindre och i med det blir kabelvikten mindre.

With a starting point in a project for reinforcing small scale business among immigrants in Sweden, carried out within Swedish for immigrants (sfi), the aim for this thesis is to examine the project from the view and experiences of the participants. Interviews with participants in the project have been inspired by the teoretical and methodological views of Grounded Theory.The interviews show that some participants want to start their own business, but almost as many don?t have that dream. The former group all have experience of being self-employed. They are aware of the difficulties but are nevertheless determined to proceed their dream.

Real-time systems are required to answer to external stimuli within a specified time-period. For this to be possible, the systems behaviour must be predictable. The use of active databases in real-time systems introduces unpredictability in the system, e.g. due to their use of active rules. The behaviour in active databases is usually specified in ECA-rules.

The main goal of this project was to develop some sort of a diverter for pipestransporting waste in a vacuum system. This unit was supposed to be both cheap andeasy to serve/exchange worn out parts. With a limited space to install the pipeexchanger, the challenge was to keep it as compact as possible without constructingbends with to small radius or to sharp angles as this would wear out the system a lotfaster than planned. The system was also supposed to be able to handle clothes andscrubs from hospitals. Having too much sharp edges or angles would tear the clothesapart.

In today's society, the availability of energy plays an integral part in our everyday lives. Unfortunately, the price of energy in Sweden has increased in recent decades. A large part of our energy consumption goes to heating modules for houses, where heating methods that depend on energy sources such as electricity, district heating, fuel oil, gas and biofuels are the most common ones. During the winter period, the increase in energy costs becomes significantly evident, especially for small property owners. This increase in energy cost is most noticeable for home owners with electric heating.This thesis is written at the Halmstad University, in cooperation with a company, which makes parts of this thesis confidential.

Industrialization of construction is by some considered to be a solution to the building industry's problems about the lack of quality, high production costs, low productivity and poor environmental adaptation. Meanwhile, industrialized construction partly earned a bad reputation after the million housing program. As large-scale projects where promoted during this period, it worked very well to use the technique of construction elements. In the mid seventies though, criticism arose which claimed that the aesthetic qualities had been deprived in the corporates effort to make housing production as efficient as possible.Tyréns, Derome and CBBT (centre for building and housing in wood) cooperates in a development project to develop a building system for 4-8-storey buildings, consisting of three platforms: a technology platform, an IT platform and a processing platform. The technology platform consists of flexible, industrially built flat modules of wood and from this platform the subsystem stairwells, is broken out.

The purpose of ?The Lake? was to create an experience with music and visuals working with no budget.A personal purpose was that I wanted to explore new areas in design, like scenography, and combine them with my previous knowledge and skills. My method was to keep my hands busy at all times and use new materials. I also wanted to work with other creators and learn from their methods. Together with a musician I created the music and the concept for the project.

The government regulations for energy use in buildings will be tightened in the future. At the same time the interest in environmental classifications and certifications of buildings is increasing. This has meant a new situation for solar energy. The designs of solar heating systems are often based on experience and/or rules of thumb, rather than calculations and simulations. This thesis examines whether simulation tools, in this case Polysun, are useful in this work.

This project practise methods used in the interaction design discipline to develop a concept related to the Swedish Guinness World Records Magazine. This project is a challenge to accommodate both the users? and client?s needs. We focus on interaction and the experience, which is acquired through the use itself, and how to connect it to a theme from a client. The aim of this project is to create a meeting place for children where they can interact with technology.

This study looks into the possibility, and profitability, of expanding a pilot project that has been put into action at GGP Sweden AB in Tranås, a manufacturing company that produces front mowers. The pilot project is meant to give GGP Sweden AB a more precise control of the flow of goods from their suppliers, and its essence has proven to be quite similar to the Japanese Just-in-Time philosophy.The study has been divided into four separate areas; mapping, supplier selection, supplier evaluation and cost analysis. These areas represent a holistic perspective on the expansion of the pilot project and cover topics varying from methods of finding suitable JIT-suppliers, constructing Key Performance Indicators (KPI) to reviewing costs and assessing profitabilities.In this report, the reader will initially take part in the works of mapping GGP?s manufacturing unit, pilot project and supplier base, which results in a list containing the most suitable suppliers for a Just-in-Time based collaboration. Afterwards, the reader will be led into the area of supplier evaluation, where five KPI?s are created with the purpose of ensuring that GGP will be able to evaluate their suppliers and pilot project in an effective way.

This study is a quantitative study designed to examine whether training in health issues may have contributed to the increase in head managers' psychological capital (PsyCap). Construction consists of the following components: self confidence, hope, optimism and resilience. A high PsyCap considered beneficial in organizational change and steer towards the positive development and helps individuals in stressful situations. The results show an increase of characteristics such as hope and optimism among managers (N = 15) who have undergone training in health issues compared with managers who have not undergone training. However, the tests show no significant difference in head managers' attitudes to health breaks, not the severity of granting health breaks in the groups as a result of training.

This is a thesis report from SLU in Skinnskatteberg, the Swedish university of agricultural sciences. This study is an evaluation of a course in attitudes and behavior for participants of the ETT- project led by Skogforsk, the forestry research institute of Sweden. They do research for the benefit of Swedish forestry. The ETT-project is a project where there are both 74 tons ST-trucks and 90 tons ETT-trucks in test on the public roads. This study is concentrated on the ST-trucks and their drivers, company owners and logistics managers. The evaluation is done by interviews with the various participants.