This master thesis reviews advances in detection and diagnosis of static friction (stiction) in control valves. Control valves suffering from stiction results in oscillating control loops which in turn decreases both the process stability and reliability. Perstorp AB sees a necessity to automatically detect stiction in valves before the effects of the malfunctioning valves have become too severe. This thesis presents an introduction to maintenance, control loops and how stiction in valves can affect performance of control loops.A selection of methods presented in the literature are introduced and examined using normal operating data from the site in Perstorp. Common for all selected methods is their intuitive ideas and that they are based on normal operating data and minimum amount of process knowledge.

This essay is about the origin, planning and establishment of the European Space Research Organisation's (ESRO) sounding rocket base Esrange outside Kiruna in Northern Sweden. Three main questions are examined. First I show there were not just scientific and technical but also political, economical as well as military reasons to build a European rocket base. Second, I scrutinize the reasons to choose Northern Sweden as the location for the rocket base. As it turns out, the main reasons were the favourable location of Northern Sweden within the aurora oval zone, the proximity of the Kiruna Geophysical Observatory, and the possibility to use a large, although not quite uninhabited, area where the launched rockets could crash.

This paper is about the extent to which simplified penetration calculations ofsmall-caliber projectiles is a useful tool for assessing the physical protectioncapability. The work should be seen as an attempt to create an accessible tool inthe form of a simplified equation that allows for a better and safer use of thenaval vessels. The tool will also be used at different levels so that decisions andinstructions could be clearer.Performed calculations show a very limited capacity of a ship's basic design interms of physical protection against the use of small-caliber projectiles.How do we know that the calculations correct? By verifying the calculations withpractical shooting tests, a substantial condition to answer the question will becreated. To shoot against a material with two different thicknesses estimated toproduce perforation and non-perforation is a good approximation of the equationusability in the context..

The purpose of this essay is to describe and analyse the dilemmas within assessments to establish the parenting ability of mentally handicapped parents, and furthermore to see how these assessments are carried out.To achieve this purpose we have interviewed eight professionals from three different professions who comes into contact with mentally handicapped parents throughout these assessments. These professions we have interviewed people from, are employees from social services, employees from assessment homes and lawyers.We have summarized the results of our interviews into three main themes. The first is focusing on which method/model employees from social services and assessment homes use to help establish the parenting ability of mentally handicapped parents. The second theme describes different dilemmas that can arise in these assessments and the last theme describes the knowledge that people we interviewed have regarding mentally handicapped parents.Professions which carry out assessments of mentally handicapped parents often come across a variety of different dilemmas, one of the clearest is how to enable these parents to understand the necessity behind the assessment and to give them an understanding of what kind of help and support they need in order to give their children a "good enough" childhood..

Political realism is a general theory within political science focusing on the principle interest defined as power. The theory?s mutual standpoint is that states are inspired by power politics meaning that military and economic power or security stands in the centre while moral and ethics are placed in the periphery. This essay?s purpose is to analyze realism which helps to understand the development and change of the perspective.

This thesis investigates how a developer can move a desktop application to the web environment. The investigation also includes finding out what are the limitations of a web application and what is not possible to move to the web from the desktop. The question is whether there is any functionality that is gained or lost in the web application after the move.A survey has been conducted to find out what types of problems occur when moving an application from desktop to the web. The authors of this thesis have developed two prototypes for a company who wants to move a limited part of their current desktop application to the web in the future. The prototypes have been developed in Silverlight and ASP.NET.The survey has revealed that one of the disadvantages of web applications is the difficulty in working with local files and hardware on the computer.

Vådabekämpningar är inget nytt fenomen när det kommer till militära operationer. För att kunna lösa detta problem så måste man ta reda på vilka de största orsakerna till vådabekämpning är samt vilka lösningar det finns för att minska risken. I denna uppsats har det genomförts kvalitativa litteraturstudier om fenomenet vådabekämpning, från Operation Desert Storm och framåt. Syftet med uppsatsen är att studera hur arbetet med att förhindra vådabekämpningar skulle kunna se ut, samt ta reda på vilka de största anledningarna är till att vådabekämpningar uppstår. Analysen visar att det finns en rad olika orsaker till att vådabekämpningar uppstår. Vidare så visas ett antal åtgärder som kan vidtas för att minska risken för vådabekämpningar. Resultatet visar på att det går att reducerar riskerna, men att fenomenet aldrig helt kan försvinna..

Background:An increasing number of patients with an oncology diagnose will be seen in the future. The oncology care is complex and in great need of nurses with a high level of competence. There is a lack of previous research in the specialist oncology nurses competence and therefore knowledge of their skills can reveal an understanding of their competence.Aim:The aim of the study was to describe the competence of the specialist oncology nurse.Method:Four oncology nurses and two directors of oncology care were interviewed. The interview text was analyzed using qualitative content analysis.Results:The result showed that the oncology nurses had developed six different competences within different areas. These competence areas were assertiveness, patient-centered care, ethical and moral-, pedagogical-, to lead and develop- and theoretical competence.

AbstractThis thesis examines and discusses a sample of the medieval hypocausts (stone-heating ovens) in the Baltic area. The medieval construction is thoroughly explained as well as the antique hypocaust in order to establish a base for the following discussion. The medieval hypocaust has been almost forgotten for a long period of time. The last time someone dealt with this category of finds were in the 1960?s by Swedish archaeologist Iwar Andersson and in the 1970?s by Danish archaeologist Johannes Hertz.

The aim of this study is to examine physical education teachers? and students? views on the thesis and its part in the physical teacher education program at The Swedish School of Sport and Health Sciences.Does the view on the thesis differ between techers/students and the program with its curriculum and other policy documents?What does students/teachers value in a thesis?Does teachers/students have a mutual habitus concerning the thesis in the form of essay writing and how is this expressed?The study is based on a qualitative survey in which the respondents mainly answered open-ended questions with written answers. These answers have been categorized and analyzed with the aims of the study and the previous research in mind. The views on the purpose of the thesis differ, both within the group teachers/students and to a certain degree in relation to policy documents. The value of the thesis differs within the group.

The attention on environmental issues has never been as huge as today. The climate is changing and more and more evidence suggest that the cause behind climate changes is an increase of carbondioxide into the atmosphere. The increase in turn is considerd to be an act of human activity. Therefore some companies have decided to become climate neutral and implement information technology in their business in order to reduce their emissions. This thesis has three aimes: to calculate a small company´s carbondioxide emissions, study whether or not information technology could help to reduce these emissions and furthermore find out why some companies decided to become climate neutral and describe the concept climate neutral.

The purpose of this paper is to explore to what extent some Swedish bishops (1972-2014), mainly archbishops, were influenced by postmodernity as described by Lyotard in his report La Condition postmoderne (1979).This report had a tremendous impact on the western cultural and philosophical debate in general during the very end of the twentieth century. I am trying to find out if this impact could also be observed in the religious sphere and particularly in the Church of Sweden. My theory used, is mainly based on the ideas presented in La Condition postmoderne and my method is a hermeneutical reading of eight pastoral letters. These letters were written during the time that the Church of Sweden transformed from being an officially recognized national church to a free church among other free churches and in this respect ended to be a part of the official governmental power. The terms postmodernism or post-modernity were scarcely used at all in the pastoral letters but on the other hand the bishops seemed to share many of the ideas that Lyotard presented, such as the view on the metahistory/metanarrative and the connection of knowledge to power, the necessity of dialogue and openness and the importance and the role of creating and maintaining language games..

Denna magisteruppsats i krigsvetenskap med inriktning i militärteknik behandlar utveckling av kravställningen i materielproduktionsprocessen för örlogsfartyg, exemplifierat av en konfigurationslösning för manöverbryggan. Syftet är att föreslå nya krav på materielproduktionsprocessen för att skapa förutsättningar för konfigurationslösningar på örlogsfartyg som säkerställer utövandet av den väpnade striden och hanterar effekter av stridsskador samtidigt som den militära sjösäkerheten tillgodoses. Utifrån inhämtad kunskap om materielproduktionsprocessen, mänskliga faktorer, den väpnade striden, den militära sjösäkerheten och en standard för hantering av skador orsakade av strid analyseras en befintlig manöverbryggas konfigurationslösning, innan och efter en skada, utifrån ställda krav inom den väpnade striden och den militära sjösäkerheten. Manöverbryggans konfigurationslösning utvecklas och en förnyad analys sker på motsvarande sätt. Resultatet presenteras i form av ett antal nya krav som bör ställas på materielproduktionsprocessen för att skapa förutsättningar enligt ovan angivna syfte..

Many questions are still left unanswered regarding the period c. 450-700 AD, when hordes of Anglo-Saxon migrants landed on the British Isles and by doing so made the starting point in the foundation of England. Who were these Germanic tribes? The theories of how the migration proceeded are today many. The two major theories today concerns whether it was a question of a mass migration or a gradual migration proceeded by smaller groups of military elite.

This is a thesis about the American empire. I also focus my work to see if this American empire is declining. The two main questions I ask and want to answer in this thesis are: is America an empire and is it in decline?I first conclude that America has been an empire ever since the end of the Second World War. The sheer military and economic power of the American empire matches and exceeds the ones before them.