Two ecological models of nitrogen processes in treatment wetlands have been evaluated and compared. These models have been implemented, simulated, and visualized in the Modelica language. The differences and similarities between the Modelica modeling environment used in this thesis and other environments or tools for ecological modeling have been evaluated. The modeling tools evaluated are PowerSim, Simile, Stella, the MathModelica Model Editor, and WEST. The evaluation and the analysis have been performed using McCall?s factors for software quality (McCall et al, 1977), a correlation analysis and the Constant Comparative Method (Glaser&Strauss, 1999).

This Master Thesis has been conducted as an assignment of the Swedish Defence MaterialAdministration and the Swedish Armed Forces and aims to examine the Target Location Error(TLE) of a Forward Observer System. The targeting accuracy of the system is vital if the systemis to be used as a sensor for precision munitions. The analyzed system, EOI (FOI 2000), wasdelivered to the Swedish Armed Forces in 2007. The targeting sequence starts with deciding theposition of the system with a GPS-receiver, continues with methods where the north direction issettled and ends by measuring the distance, direction and elevation to the target. When allparameters have been measured the system calculates the position of the target.

Students at Jönköping School of Engineering were given an assignment from Jönköping municipality, to evaluate their decision support system, QlikView. The students have also developed proposals for improvement with focus on usability.The Jönköpings municipality has currently got 11000 employees and consists of nine different administrations. The target group for QlikView is approximately 600 first-line managers.The intention of QlikView is that the users can get an overall picture of their business by having all information in just one system.The purpose of the thesis is to obtain a picture of what the users think about the system today and present relevant suggestions for improvement, which the Jönköping municipality can use when the introduction of the new version of QlikView takes place. The research questions that the study aims to answer are:? Has QlikView got a user friendly interface?? How can the interface be improved to become more user friendly?Theories that this work is based on is Jacob Nielsens ten usability principles and Ben Schneidermans eight golden rules.

Students at Jönköping School of Engineering were given an assignment from Jönköping municipality, to evaluate their decision support system, QlikView. The students have also developed proposals for improvement with focus on usability.The Jönköpings municipality has currently got 11000 employees and consists of nine different administrations. The target group for QlikView is approximately 600 first-line managers.The intention of QlikView is that the users can get an overall picture of their business by having all information in just one system.The purpose of the thesis is to obtain a picture of what the users think about the system today and present relevant suggestions for improvement, which the Jönköping municipality can use when the introduction of the new version of QlikView takes place. The research questions that the study aims to answer are:? Has QlikView got a user friendly interface?? How can the interface be improved to become more user friendly?Theories that this work is based on is Jacob Nielsens ten usability principles and Ben Schneidermans eight golden rules.

AbstractAuthors: Mikael Gustafsson & Kristofer von WachenfeldtTitle: With help from people and cattle; to recover from mental illness in a rural environment [translated title]Supervisor: Kent-Inge PerseiusPurpose: The aim of this study was to examine feelings of recovery from mental illness in the perspective of individuals participating in Nymålen; a rural- situated facility focusing on recreation- and work- related interventions. The study took place outside of Oskarshamn, Sweden. The study focused on if, and in that case how, Nymålen contributes to recovery from mental illness. We were also interested in which factors affecting the recovery-process, as expressed by the participants themselves.Method: Eight individuals from Nymålen participated in individually performed semi- structured interviews. The collected data was then coded and categorized to enable further analysis by using Qualitative content analysis inspired by Graneheim & Lundman (2003).

In system development it is today increasingly common to use a model-based system development method. These methods that are suited for Agile work with simple and quick updates and implementations of new applications in systems conform to the requirements that are becoming more important today, namely more flexible and less expensive system that still maintain high quality and safety.A company that has been working with this type of system development method for a long time is Genicore AB, which also has developed their own tools and model language in order to better model the information management systems in complex and abstract operations. Genicore AB is trying to spread their method other developers and have therefore taken the initiative to start this study. The method is evaluated and tested by two students with relatively little experience in model-based systems engineering in order to gain a new perspective on how the method functions. The method has been applied to an educational activity in order to test it in a new domain, and this led us to our research question;?What criteria are of particular relevance in the implementation of a MBSD method on on complex businesses??Through literature reviews and interviews, we formed an idea of how model-based system development works from a theoretical perspective, and then continued to the case study conducted on the educational activities at the faculty of IT at University of Gothenburg.

Title: Identity management on Facebook: a qualitative study in approaches to personal identity between two different age groups on the most public stage of our time (Identitetshantering på Facebook: En kvalitativ studie om förhållningssättet till den egna identiteten hos två olika åldersgrupper på vår tids mest offentliga scen).Number of pages: 43.Author: Isabelle Kåge.Tutor: Amelie Hössjer.Course: Media and Communication Studies C.Period: Fall Semester 2010.University: Division of Media and Communication, Department of Information Science, Uppsala University.Purpose/Aim: To identify differences in attitudes towards and management of personal identity onFacebook within two different age groups.Material/Method: Personal interviews, literature, electronic sources, Internet sources.Main results: Those in the younger age group present themselves differently depending on the person or persons with whom they are communicating. Those in the older age group however, present themselves in a more consequent matter based upon the visibility their actions have to all their friends on Facebook as a whole. The definitions of certain elements on Facebook, such as what constitutes private information or anexcess of photo-tags, differ between the two age groups. Comments and feedback differ in importance and effect between the two age groups. Those in the younger age group are more likely to modify their attitudes towards their identities based upon the functions of Facebook.

Students at Jönköping School of Engineering were given an assignment from Jönköping municipality, to evaluate their decision support system, QlikView. The students have also developed proposals for improvement with focus on usability.The Jönköpings municipality has currently got 11000 employees and consists of nine different administrations. The target group for QlikView is approximately 600 first-line managers.The intention of QlikView is that the users can get an overall picture of their business by having all information in just one system.The purpose of the thesis is to obtain a picture of what the users think about the system today and present relevant suggestions for improvement, which the Jönköping municipality can use when the introduction of the new version of QlikView takes place. The research questions that the study aims to answer are:? Has QlikView got a user friendly interface?? How can the interface be improved to become more user friendly?Theories that this work is based on is Jacob Nielsens ten usability principles and Ben Schneidermans eight golden rules.

Students at Jönköping School of Engineering were given an assignment from Jönköping municipality, to evaluate their decision support system, QlikView. The students have also developed proposals for improvement with focus on usability.The Jönköpings municipality has currently got 11000 employees and consists of nine different administrations. The target group for QlikView is approximately 600 first-line managers.The intention of QlikView is that the users can get an overall picture of their business by having all information in just one system.The purpose of the thesis is to obtain a picture of what the users think about the system today and present relevant suggestions for improvement, which the Jönköping municipality can use when the introduction of the new version of QlikView takes place. The research questions that the study aims to answer are:? Has QlikView got a user friendly interface?? How can the interface be improved to become more user friendly?Theories that this work is based on is Jacob Nielsens ten usability principles and Ben Schneidermans eight golden rules.

<p>This explorative study examines approximately one hundred electronic library homepages. It focuses on four aspects: form, content, structure and user support. Form relates to the presentation of information and is concerned with the relationship between text and graphics. Content refers to the type of information and services that an electronic library offers. Structure is concerned with the guiding principles that have motivated the grouping of information and services on the homepages.

En produkt består ofta till större delen av inköpt material och för att minska den totala tillverkningskostnaden fokuserar företagen därför ofta på att minska sina inköpspriser. Att pressa leverantörernas priser på detta vis är ett populärt sätt att förbättra företagets kortsiktiga vinster.Ericsson förhandlar årligen med sina leverantörer för att minska sina inköpspriser, vilket alltså anses ska minska inköpskostnader och därmed även tillverkningskostnaderna. Detta sker genom funktionen sourcing i en process som kallas för VPA-processen. VPA-processen kräver information från de lokala supplyfunktionerna, vilka dock inte har något dokumenterat arbetssätt för dessa aktiviteter. Syftet med denna studie är därför att skapa en stödprocess till sourcings VPA-process.

Principles that guide how a classification system should be structured have existed for more than a century. Traditional classification principles can be of great value for the design of classification schemes directories on the web. However, there are differences between the library context in which these principles originated, and the web. This thesis aims at investigating how changes in the context of classification affect the application of traditional principles of classification on the web. Another purpose is to see what implications this has for the design of classification schemes on the web.

The aim of this study is to show how some persons with one of the Swedish national minority languages as mother tongue use a library with regard to their mother tongue and culture. The research questions are: How do Sami-speaking, Finnish-speaking and Meänkieli-speaking (Tornedalen Finnish-speaking) persons use a library with regard to their mother tongue and their culture? What aspects do they find important in this use? As a theoretical frame I have used Marianne Andersson and Dorte Skot-Hansen?s model of the functions of the local library and Will Kymlicka?s theory of the value of maintenance of minority cultures. The study is a qualitative user study. Deep interviews have been conducted with 9 persons with Finnish, Meänkieli or Sami as mother tongue.The results show that the main use of the library is as a cultural centre and the most frequently used service is borrowing of literature.

Better, more efficient fertilizers with great productivity and economic returns are needed, but it is important today to find fertilizers that are also sustainable. It is also important to carefully monitor their impact on the environment, including potential side-effects. In this context, the microbial communities that carry out numerous essential functions contributing to a functional ecosystem are of particular interest. The present study is a complement to a pot experiment that investigated the potential of different waste products for use as fertilizers and how they affect the microbial community. In the pot experiment, the clearest treatment change in microorganism community function was found in the fully fertilized treatment used as a positive control. The question was whether this was indirect, i.e.

TM-konsult är ett Norrlandsbaserat projekteringsföretag som verkar inom samtliga discipliner i tidiga skeden, projektering och projektledning. För att verka som ett konkurrenskraftigt företag inom projektering i Sverige krävs en rad ingredienser. Några av dessa är moderna arbetsmetoder, moderna verktyg och kompetent personal. TM-konsults kontor i Härnösand är företagets sydligaste säte och det kontor som konkurrerar om jobben i närområdet och Stockholmsregionen. Kontoret är ur en strategisk synpunkt viktigt för företaget.