This master?s thesis describes the development of a model of the catalystsystem aiming at control by an MPC. A well functioning model, which is suitable in control purpose, is important while emission legislation become more and more hard to fulfill for the car manufacturers. Much research has been done in the field of physical modeling of the system, but in this work a linear adaptive time discrete ARX-model is developed and validated.The systems tendency to change its dynamic during usage implies that the model must be adaptive. The developed model proved to be well functioning and shows promising conditions for the MPC design.

SUMMARYThe Swedish laws of animal welfare emphasize the social needs of the horse but nothing is said about how to fulfill this. Though there are few studies done in this subject it can be difficult to understand if the needs are fulfilled. The purpose of this study was to learn more about the horse?s social needs in box stable and to increase other people?s knowledge and understanding of the horse behavior to increase the welfare of the stabled horse. The questions where: How does the horse choose to place itself depending on what horse is next to it? How many attempts does the horse do to take contact and nose contact with the horse next to it? How does the box design affect the horse behavior?22Eight horses were videotaped during 24 nights.

The objective was to examine the frequency of unwanted behaviors in the Swedish feline population and what factors in the environment, inheritance and past life that have an influence on the frequency. SLU?s web poll generator was used to create a web poll which insinuated that it was a poll with objective to make an inventory of the Swedish feline population. I wanted to avoid that only owners to cats with unwanted behaviors answered the poll. The web link to the poll was sent to SLUs students and posted on Internet forums for people interested in cats.

The animal welfare act in Sweden states that dairy cows need to have at least a dim light present at night, but there are no recommendations for what intensity the light should have. It is unknown how cows perceive and react to low light intensities and earlier studies on this topic are limited. Red light as night light has also been suggested, based on the cows? inability to perceive red light. This have however been questioned. The aim with this study was to investigate how four different light intensities affect dairy cows behavior.

The aim of this paper is to examine the layout of public spaces and its effect on human behavior with focus on the relation between pedestrians and cyclists movement patterns in a specific path. The study emanates from the security aspect of pedestrians and cyclists, and builds upon previous theories and empirical studies about perception, security, information design, environmental psychology and behavior. The result shows that individual behavior and movement pattern differs with age, purpose, physical- and other conditions, and layout of the surroundings. A design proposal for improved layout of a path and a node between different oncoming paths has been developed to aid the users? needs, where a separation of walkways and bike lanes forms zones of security for the purpose of better orientation and a better flow between the users..

This report describes a synchronous machine model with magnetic saturation in d-axis, neutralconnection and electrical exciter interface for the transient simulator PSCAD/EMTDC. It hasbeen designed and verified in comparison to the regular machine model in EMTDC.The performance of the model is very good when incorporating a linear as well as a saturatedmagnetising inductance. The dynamic deviation is only thousandths to ten thousandths perunit. By using a cubic interpolation of the saturation curve, the model gives a good representationof the saturation effect. The open source code implementation of the synchronousmachine model gives the possibility to easily adapt the model to specific requirements.The derived model makes it possible to simulate a synchronous machine with its excitationsystems, e.g.

The purpose of this thesis was to analyse, model and finally generate dynamic vehicular motions in a train. The objective with the analysis was to find important motions for a realistic train experience. The motions from the analysis were then weighted against possibilities for generation in a motion platform.A dynamic motion model was created to model the selected motions. The model was implemented in a simulation environment, more specifically MATLAB/Simulink. The simulation environment was used to simulate the model and to generate outputs to control a motion platform.

This project consists of an adaptation, trial and evaluation of a model for practicing. Based on prior research I created a model aiming mainly to raise a musician?s self- awareness around the different parameters a performance consists of. An additional wish was for it to simultaneously assist the musician in monitoring his or her progress. With video recording and self-evaluation as the two main parts I tried the model by using it over a period of three months.

In this report a model was constructed in order to determine how a number of covariates influence the gross domestic product, GDP. The covariates were chosen depending on their expected influence on GDP, for example education and life expectancy. The data used in this report are collected from the World Bank. The model to describe GDP has been calculated using multiple line arregression. In order to reach a reliable final model the number of covariates has been gradually decreased to eliminate insignificant covariates.

The aim with this study was to examine professional peoples' view on the reason why females, under the age of 18 years old, self-harm and the professionals view on their treatment. The study is qualitative and based on eight interviews with professional personnel who work with young females with self-harm behavior in the region of Skåne. To be able to analyze our qualitative interviews we used two theories; the attachment theory and trauma theory. The results of this study show that there are many different functions with the self-harm behavior and that the cause of the behavior can be different among the females. Most of the young females seem to self-harm to reduce anxiety but some also do it to punish themselves, to feel alive or to belong to a group of friends.

What is it that drives a person with criminal behavior to change their lifestyle? What are the obstacles to a lifestyle change? These issues have been guiding us during this study. In the introduction, we describe the previous research that has been done among crime in men. The themes that will follow us through the course of the study are as follows; cause of crime, Self-efficacy, social network and lifestyle change. The aim of the study was to investigate the factors that a former prison convicted individual believes has been significant, as they break their criminal behavior associated with a lifestyle change.

Denna uppsats lyfter ut Graham Allisons tre teorier från boken Essence of decision och applicerar dessa på U 137-krisen. Krisen inträffade 1981 då en sovjetisk ubåt gick på grund utanför Karlskrona. Var och en av de tre teorierna är ursprungligen gjorda för att förklara beslutsfattandet under Kubakrisen utifrån olika perspektiv. Uppsatsen prövar de tre teorierna på U 137-krisen och utser den teori som bäst förklarar utrikespolitiskt agerande under krisen. Huvuddelen av uppsatsen beskriver de tre teorierna Rational actor model, Organizational Behavior samt Governmental Politics och applicerar dessa på U 137-krisen.

Are icehockey supporters a big problem in todays society? Is security required during icehockey events, and how is it implemented? This study was aimed to investigate the people at security positions and their view on fan behavior and it?s impact on icehockey events. It was a qualitative study were six interviews were made with people in charge of the security at different hockey clubs. The results showed that security managers overall saw a good fan culture, and that it created a wonderful atmosphere. Security managers worked a lot with dialogue with the supporters and they thought it had a good effect.

The purpose of our essay is to investigate the social services work for youth with hazardous behavior. To aquire relevant information we decided to us the qualitative method. We made five interviews with social workers from different sections to get a full view of the situation. The main conclutions we came up with is the importance of the family structure, and a safe home environment with good values. Another important part is a daily meaningful occupation, for the main part in this age it is school attendance.

Natten mellan den 19 och 20 mars 2003 inledde koalitionstrupper Operation Iraqi Freedom. Detta var slutet på det som kom att gå till historien som Irakkrisen.30 år tidigare formulerade Graham Allison en teori, i form av tre modeller, för att förklara utrikespolitiskt agerande utifrån Kubakrisen. Vi har prövat huruvida Allisons teori fortfarande kan förklara utrikespolitiskt agerande genom att pröva den på Irakkrisen. Detta har operationaliserats genom en systematisk genomgång av tillgängligt material som behandlar uppsatsämnet.Efter att ha betraktat Irakkrisen utifrån Allisons tre olika modeller kan vi konstatera att teorin fortfarande är bärkraftig. Dock behövs viss komplettering till den 30 år gamla teorin ? i form av en inrikespolitisk analys, bredare organisationsanalys samt en djupare value- och beliefsystem-analys ? för att kunna åstadkomma en fylligare undersökning som förenar Allisons modeller med dagens verklighet..