Detta examensarbete har utförts vid Saab Dynamics AB(SBD) i Karlskoga med syftet att studera gamla konstruktioner av set-back-generatorer. En set-back-generator (SBG) ska ge momentan energi vid utskjutning av en projektil genom att en magnet rör sig genom en spole. SBG har funnits länge men har bedömts ge för lite energi för att kunna driva elektronik. Men nya typer av magneter har potential att öka energiutbytet väsentligt.SBD har ett antal äldre SBG:er och arbetet har varit att utifrån dessa undersöka om det går att utvinna mer energi genom ett utbyte av magnet. Andra parametrar som är viktiga för en SBG:s funktion har också studerats och testats i olika konfigurationer i hopp om ytterligare förbättringar.

When a helicopter is flying, the dynamics vary depending on, for example, speed and position. Hence, a time-invariant linear model cannot describe its properties under all flight conditions. It is therefore desirable to update the linear helicopter model continuously during the flight. In this thesis, two different recursive estimation methods are presented, LMS (Least Mean Square) and adaptation with a Kalman filter. The main purpose of the system estimation is to get a model which can be used for feedback control.

Arbetet är ett utredningsarbete som går ut på att försöka lokalisera felkällor och göra förbättringar på en testutrustning som mäter rodervinklar på akterdelen på en robot. Rapporten innehåller en översiktlig bild över den tidigare metoden och dess felkällor som hittas vid test av den tidigare metoden. Utredningen utmanar också många utav antagandena som är gjorda för beräkningarna av den tidigare metoden. Detta utförs för att kunna bekräfta eller dementera antagandena. Detta görs i form av matematiska modeller som testar olika delar av metoden.

De krocktester som utförs idag är låsta till det system av styr och draganordningar som byggs upp. Att göra en krocktest därbilarna kan styras individuellt med hjälp av en förarrobot ökar friheten att designa tester. Att krocka två bilar som på bilden på framsidan, med 90 graders vinkel mellan bilarnas färdriktning ställer det mest tidskritiska kravet när de ska träffa varandra. Detta kräver en bra hastighetsreglering vilket är huvuddelen i examensarbetet.I denna rapport redovisas hur ett sådant styrsystem skulle kunna byggas samt tester i en simuleringsmodell för denna typ av krocktest.Simuleringsmodellen är uppbyggd i Matlab/Simulink och eftersträvar att efterlikna ett verkligt sidokollisionstest tillräckligt mycket för att kunna testa styrsystemet.Efter de tester som gjorts kan man konstatera att det är möjligt att konstruera ett sådant styrsystem som kan få två bilar att träffa varandra i en sådan sidokollision som är beskriven ovan..

The purpose of this study was to identify the positive and negative aspects of the work and dynamics of a management team and from that recommend how the team can improve. The aim was also to investigate whether there was a gap between how the members of the management team comprehend themselves and how the project, section and team managers comprehend the management team. The management team contains of seven core team members and is the head function of a research and development site in central Sweden. The results are based on interviews with the present members of the management team and three former members, a survey among the project, section and team managers and by participating observation on meetings with the team. The results show that the management team is an overall well-functioning team that with some changes and improvements, especially concerning communication and information, can reach even further.

Today, there are more than 12 000-14 000 farms worldwide using an automatic milking system (AMS). Studies have shown that transition to AMS affects the udder health of cows adversely, recognized primarily as elevated somatic cell counts. There are several reasons for this, for example the greater variation in milking frequency seen in AMS. On one hand, short milking intervals may lead to bad teat condition of the cows due to the stress the milking procedure exposes the teats to. Too long milking intervals, on the other hand, seem to predispose for milk leakage, which is, in turn, a risk factor for the development of mastitis.

Det här examensarbetet behandlar tillverkningsmetoden sprutprägling och utvecklandet av en automatiserad produktionscell vid Trelleborg Skega i Ersmark. Under 2005 har behovet av en ny tillverkningsmetod, sprutprägling vuxit fram. Eftersom det är en kostsam metod kommer den endast att användas för vissa applikationer där det ställs extremt höga krav på ytfinhet och hållfasthet. Efter tillverkning genom sprutprägling sitter detaljerna fast i en så kallad sprutpräglingsplatta från vilken de måste separeras. Detta sker vanligtvis genom stansning.

This study was carried out in Ronneby municipality during May 2006. I chose to compare three senior schools with regards to the implementation of objective orientated directives based on the teachers understanding of the task, motivation, resources allocated and their significance for the disparity between boys? and girls? grades.I carried out nine in-depth interviews: three at each senior school. From the interviews it emerged that teachers perceive objectives differently from parents and students. Teachers claim that they understand the directives but say that they lack the resources.

Society is facing rapid and continuous change. In order to participate in the development, organizations need to take advantage of all the knowledge and skills available in the labor market. Women leaders in top positions are still in the minority but do as good a job as their male colleagues. She brings different dynamics and a new dimension in the work culture but is nevertheless excluded from the mightiest rooms. The purpose of this study is to elucidate the organizational factors that determine and facilitate for women to take on leadership positions.

This paper has its aim to investigate in which way the theory about the dynamic of the triadic nexus, presented by Brubaker, needs to be revised. In the first place this theory is presented and after then applied on the triad formed by: the Hungarian national minority in Transylvania, Romania and Hungary. Through the empirical evidences, that are presented here by following up the political relations and its dynamics over time between the three fields, is shown that the theory is usable for the case in question. Further as we approach the more actual development of the political life in the triad appears a need to deal with one more field which would be for example the NATO or/and EU.This means that Brubakers theory has to be revised so it would take in account a forth field and that of an international organization/institution. The arguments for this needed change is put forth through empirical evidences on the political relations that the two states has with NATO or/and EU and the huge influence these have on the states..

Today automatic milking systems (AMS) are growing in popularity. In these systems the cows are loose and have to get to the robot and the feed on their own. The cows ranking in this system affect their welfare. In this study data from seven years in an AMS was used and analysed. The aim was to investigate how ranking could affect the behaviour of the cows at milking and at feeding.

This master thesis includes a description of how a number of sensors are put together in a sensor platform. It also gives a description of how localization and mapping has been performed with data collected from the sensor platform. Localization is a prerequisite for most of the tasks that can be requested from an autonomous mobile robot. In many situations the GPS signal is not available and hence an additional localization system is required. One approach is to apply localization based on landmarks extracted from the robots surrounding.

This project is a learning CD-ROM production aimed at first-time parents. It is using both sound and images, moving as well as non-moving. The purpose of the production is to be an interesting alternative to traditional books. We have been looking at similar productions like drivers license educational CD-ROMs and encyclopedias for inspiration and ideas on how to proceed. In order to give the content some dynamics, we've also added the element of 3D-animated sequences.

AB Realisator, ett management consulting företag med fokus på marknads- och affärsutveckling, har tidigare funnit att brandmän i dagsläget inte använder sig av någon form av robotar vid hantering av bränder. Således startades projektet FUMOTM; en robot vars främsta syfte är att gå in i bränder och filma/scanna ytan för att förenkla brandmännens arbete och potentiellt rädda liv. I framtiden har AB Realisator även funnit det möjligt att lägga till någon form av brandsläckningsmöjligheter och en robotarm på FUMOTM. Syftet med föreliggande rapport är att utvärdera vilka framtida produktionsmöjligheter som finns för denna robot. Arbetet innefattar att skapa en modulplattform för roboten, utforma de framtida tekniska lösningarna robotarm och släckanordning på ett monteringsvänligt sätt enligt Boothroyds DFA-metod, samt att ta fram ett monteringssystem som uppfyller den kravspecifikation som AB Realisator har lagt fram.

The purpose of this study is to explore and understand the social and structural dynamics of an organization working with questions regarding development. The organization in question is Vi-agroforestry, a Swedish based NGO that works around the lake Victoria basin and the focus will be on their office in Rwanda. I have used a qualitative approach and conducted participatory observation as well as semi-structured interviews to gather data. I have emanated from the individuals in the organization by using a theory of microsociological organisationperspecive to understand how the employees create and is created by the existing social structures. (Blomberg, 2003) Even though the office in Rwanda only is a relatively small part of Vi-agroforestry?s operations it is still highly individual and independent from the rest of the organization.