Linjäriseringar av olinjära system är mycket relevanta eftersom det finns en i förhållandevis enkel och omfattande matematisk teori kring linjära system, till skillnad från allmänna olinjära system.För vissa olinjära system är det svårt eller inte ens möjligt att genomföra en analytisk linjärisering.Orsakerna till detta kan vara hög komplexitet av systemet eller avsaknaden av ett analytiskt uttryck.Numerisk analys kan vara en lösning på detta problem.I detta examensarbete används framåtdifferens och centraldifferens för att genomföra de derivata-approximationersom behövs för att genomföra en numerisk linjärisering av ett olinjärt system.Rapporten behandlar även vad som sker då det är dålig upplösning på den indata som används när man genomför enlinjärisering, vad som händer med heltal och binära signaler om de ingår i ett system som linjäriseras ocheffekten av att ha olika samplingstider för olika delmoduler i ett system som linjäriseras.Slutligen undersöks numerisk bilinjärisering av ett system på bilinjär form och en jämförelse mellan analytisk linjärisering och bilinjärisering görs..

Finnish student have for several years proved to be successful in reading in international studies. This interview based study aims to describe how teachers in Finnish schools for Swedish speaking children are relating to reading and reading education during the first two years of schooling. The result shows that reading, reading training and reading comprehension are natural elements in all teaching during the first two years in school and that teaching is based on students? ability and interest. The teachers claim that they provide the students with varying opportunities to practice different kinds of reading.

Banverket Trafik has a responsibility to make sure that the companies who traffic the Swedish railroad have the correct information about the status of the railroad. One of Banverket Trafiks information systems (Opera) presents the train?s actual position on a map and provides the user with physical information about the trains. Due to increasing demands on the information systems, Banverket Trafik needs to update the present system architecture in order to manage the increasing demands on map graphics and map functions. This paper analysis the information system Opera on the basis of theory and support of methods and discuss problems and demands for Opera.

The purpose of this study was to investigate what competence social workers have, don´t have and ask for in the work with unaccompanied children, how a lack of competence and guidelines has been compensated in the practical work and how the social workers view the future work with unaccompanied children. This has been done through eight semi-structured interviews with social workers who work with unaccompanied children. The result has been analyzed with help of the theoretical perspective globalization connected to social work and showed that none of the social workers felt not having the competence to work with the children. However, everyone mention one or more areas where they ask for competence development. The study showed that lack of education has been compensated through practical experiences, knowledge exchange with others and that guidelines now have been formed.

In this study, emphasis was situated around pupils? expectations regarding body shape and physical proficiency among teachers within the subject of physical education. Additionally, possible outcomes of failure to uphold such demands were put in relation to aspects of legitimacy. To enable such study a qualitative study including semi-structured interviews was conducted and carried through, involving six pupils in the third grade of upper secondary education. The pupils were mainly selected through a convenience sample with.

The overall aim of this study is to achieve the increased knowledge of the use of the counselling methods in the student counsellors' work and to find the possibilities for development. Two questions are used as guidelines:Which counselling methods do student counsellors use in their work in schools?How can the current education for the student counsellors be supplemented?The analysis of the interviews with six counsellors in Stockholm's administrative province showed that even uneducated counsellors use the same counselling methods as the educated ones. All these methods which are used remind of the known counselling methods that are the part of the current education for the student counsellors.In general counsellors experienced that the education for the counsellors should be supplemented within the field children with special needs and that conversation's methodology is the essence of the counselling work..

The purpose of this study is to examine if, how and why history teachers work with local history projects in education. The results will be analyzed based on a theory of the uses of history. I also investigate, through group interwiews with students, if and how students? historical consciousness may develop through teaching about local history. The result is a variation map of teachers? different uses of history and how students historical consciousness can manifest itself.The results of the study shows that all the teachers interviewed uses local history projects in education.

This thesis deals with options about information technology in education, the starting pointbeing a project in progress, namely Ostindieprojektet. This is the first collaboration betweenDatatorget and Stadsmuséet in Göteborg. The research is built on a phenomenological approach.The "backbone" information is collected from qualitative interviews, conducted mainlyduring March-April 1995.The questions for the interviews deal with the opinions about the reasons with Ostindieprojektetand IT in education, what conditions required to complete Ostindieprojektet and the ITdevelopment, the availability of the material, how IT-use can affect education, possible qualitiesfor the student with IT-use and how IT-use can affect the role of the school-1ibrary as ateaching tool.Some key subjects examined in the thesis deals with governmental investigations, viewsabout pedagogic and knowledge, problem-based leaming, computer-based education and therole of the school-library. The research shows that the interviewers have the same opinionsas the above mentioned key subjects. In completing the thesis we hope we have created aforum for critical discussion..

The purpose with this essay is to find out the role of mythology in history in Swedish elementary schools to day. The questions I used to fulfill the purpose in my essay are these: How is the relationship between the school subject history and northern mythology, (what is myth, what is history) how does history and myth being linked together? And How is the practical use of northern mythology shaped in to days school, How does the teacher form the education in northern mythology and what controls it? The method I used was an interview, a case study and a literature study, based on the didactical questions how, why and what.The mythology is motivated by the guidelines and goals, set up by the Swedish government, and is supposed to give the student history knowledge and thereby help the student to build up their identity. It is also supposed to give knowledge about the Swedish and Nordic cultural heritage. The role the mythology has is to support the history education.According to the interview in this essay the northern mythology is given a central place in the education in the Swedish elementary school today.

In our study the purpose was to examine the influence of Continuing Professional Education on small and medium sized auditing- and accounting practices. The study also aims to analyze possible similarities and differences in how small and medium sized auditing and accounting practices are affected of the requirements regarding Continuing Professional Education. In order to fulfill our purpose in the study we conducted interviews with auditors and accounting consultants on small and medium sized auditing- and accounting practices. Totally did we conduct seven interviews with four auditors and three accounting consultants. The majority of auditors and accounting consultants we interviewed are satisfied with the current requirements on Continuing Professional Education and think they contribute to the increase of quality and status of the work tasks performed by auditors and accounting consultants.

The purpose of this graduate work is to seek knowledge about how children?s right to participation and influence is interpreted and understood in a specific context and also to examine how this right can be conditioned and shaped by the pedagogical practice of early childhood education.The focus of this study has been to examine the arguments and attitudes towards the right to participation and influence as a pedagogical practice as it is understood in early childhood education. Additionally, I have been interested in studying the affordances and restrictions that early childhood educators experience when dealing with children´s right to participation and influence.The platform used for data collection is Facebook and the informants recruited were active participants in forums regarding democracy in preschool education. In the second phase of the study I conducted online focus groups with these participants.For the analysis of the material I have adopted a poststructuralist perspective, starting from Jaques Derridas philosophical texts and use of deconstruction.The results show the complexity in early childhood education´s democratic mission. What becomes clear is the importance for the teachers to adopting an open, ethical and democratic approach in order to make children´s right to participation and genuine influence possible in the everyday reality of early childhood education. .

Vårt syfte med uppsatsen är att undersöka hur sex elever på högstadiet förhåller sig till slöjan.Hur skiljer sig deras åsikter åt beroende på vilken religiös, kulturell eller etnisk bakgrund detillhör? Resultatet har vi fått fram genom att utföra två kvalitativa gruppintervjuer av lågstandardiserad karaktär. Vi kommer i uppsatsen fram till att de sex elever som vi intervjuathar en sekulariserad syn på slöjan. Vi kommer även fram till att åsikterna och kunskapernahos de sex eleverna inte skiljer sig avsevärt åt beroende på vilken religiös, kulturell elleretnisk bakgrund de tillhör..

Användbarheten av IT-system förbättras ständigt och företag har fokus på att förbättra sina IT-system som företagets kunderna använder då det leder till fler och nöjdare kunder. Annorlunda ser det ut för interna IT-system, alltså datasystem som används av medarbetare och som ska förenkla arbetsuppgifter, effektivisera arbetet eller även möjliggöra att utöva arbetsuppgifter vid en arbetsmiljö på distans. Användbarheten av interna IT-system står inte lika mycket i fokus som användbarheten av kundcentrerade system och istället för att åtgärda brister i användbarheten tvingas medarbetarna att lära sig hantera IT-systemets brister.Utgångspunkten för arbetet var funderingarna över vilken betydelse användbarheten har för ett företag när det gäller interna IT-system vid en arbetsmiljö på distans. Ansatsen var att undersöka om användbarhetsproblem i praktiken leder till att användarna upplever ett IT-system som dåligt i den särskilda situationen av ett arbetsmiljö på distans. I en fallstudie utvärderades ett IT-system som används av försäkringsombud som arbetar på distans med hjälp av en enkätundersökning och användarintervjuar samt hierarkiska uppgiftsanalyser.

I denna rapport har vi undersökt hur utvecklarna tagit hänsyn till användbarheten för slutanvändarna vid utvecklingen av ett säkerhetskritiskt system. Resultatet erhölls genom en empirisk fallstudie på två företag som utvecklar säkerhetskritiska system. Datainsamlingen bestod av intervjuer med personer som varit delaktiga i och har kunskap om utvecklingen av systemen som ingick i vår fallstudie. Sedan analyserades insamlad data mot teori inom Människa ? Dator ? Interaktion (MDI) samt teori om säkerhetskritiska system.

This thesis examines how knowledge management professionals use trust as a component in the creation of knowledge management systems, and what methods they use for building trust.Adopting a grounded theory approach, interviews with 8 knowledge management professionals active in different industries served as the base for an analysis that identified trust to be the single most important common factor in the data. The concept of trust used by the informants was identified as relating to the knowledge management system itself, rather than other users, employees or groups in an organisation.Building trust, the KM-professionals mainly focused on three methods: simple solutions, system superiority, and implementation security. Using these methods, the KM-professionals seek to ensure system trust by creating opportunities for users to obtain positive experiences of using the system, and thereby generate a foundation for a trust-based relationship between the user and the system..