Induction motors, often referred to as the workhorse of the industry, play an important role in production today. Therefore, it's important to diagnose any faulty induction motor prior to failure to avoid costly and time consuming production stops.This thesis compares methods for diagnosing induction motors in operation, MCSA, Park's vector approach and the standard method used by Swedish industries today. By simulating broken rotor bars and short-circuit in one of the windings, each method is tested and the results are compared using matlab.The results need further verification due to uncertainties of the condition of the test motor, even though the experiment gives a hint of the different advantages of each method. A combination of the methods should be able to tell if the motor needs further examination..

In each classroom there is a teacher with good intentions wanting what´s best for their pupils. But grades and tests in mathematics from 2009 in Sweden shows there is a crack between the subject being taught and the learning child. The purpose with this research is to find an understanding from a teaching and learning perspective of which teaching method is more suitable for teaching and learning mathematics by doing a comparison between two methods. The main question is:What are the advantages and disadvantages of the traditional and the laboratory method of teaching, supported by the two keywords teaching method and learning?This C-paper is based on a qualitative research aiming to gather an in-depth understanding of human behavior.

In this master thesis work, a new method called MultiScat, is compared with the conventional method with alfa-correction, for computing concentrations from intensities in X-ray spectrometric analysis. The conventional model is a linear model, which only takes the photoelectric effect into consideration. It doesn't consider Rayleigh and Compton scattering even though it has a great impact on the measured intensities. Here MultiScat differs a lot. MultiScat is based on a solution of the Boltzmann transport equation.

This essay examines two modern retellings of the classic fairy tale of Snow White and the seven dwarfs in the version of the brothers Grimm. By analyzing the differences in the modern version to the more original one my aim is to be able to see how these objects of popular culture are affected by the type of society they are created within.In my two-step analysis I have first used the theory of narratology to find what changes had been made in the two retellings. Here I have the help of several key concepts of the theorists Vladimir Propp, Gérard Genette and David Bordwell. The narrative differences, which turned out to concern the characters mostly, I have then sought to explain in the light of the sociological theories of Zygmunt Bauman regarding liquid modernity and liquid fears..

This study investigates whether the site index curve method (SICM) and the growth intercept method (GIM) can be used for site index predictions in younger Norway spruce (Picea abies (L.) Karst.) stands than recommended by current guidelines. For SICM it was thus investigated whether the method could be used for stands younger than ten years, and for GIM it was tested whether a starting point for the intercept measurements could be used below the recommended 2.5 meter. This was tested based on measurements taken from experimental stands in Tönnersjöheden Research Forest. For GIM it was found that the method can only be used when the TH-trees of a stand have five complete intercepts above 2.5 meters. For the method to be applicable beyond this, it will be necessary to adapt the underlying equations, perhaps following the Canadian example where a 1.3 meter intercept start is used. In conclusion it is not currently possible to apply the approach beyond the current recommendations. For SICM, SI predictions are accurate for the study area already form year three.

The global Positioning System (GPS) provides location and time information as long as there are unobstructed lines of sight to four or more GPS satellites. However, when this is not the case the signal may be inaccurate or sometimes even completely blocked. In these situations the Inertial Navigation System (INS) is an appropriate choice for positioning.  An INS has already been proposed in a previous thesis by Erik Andersson and the objective of this thesis is to fuse the GPS with the INS in a proper way. A part of this project is to decide the reliability of the GPS.Three methods for GPS reliability detection have been proposed. One method based on the statistical properties of each of the separate systems, and two methods based on the statistical properties of the residuals between the GPS and INS.

There have been, in some rare cases, difficulties with clamping of inserts with U-holesin their tool holder. According to the complaints, the inserts could not be properlyclamped or could fracture when clamped. A study has shown that variations inclamping behaviour are mainly depending by the position of the screw hole in the toolholder and the centering of the screw hole in the insert.The focus of this project has been the centering of screw hole in insert. It has beenshown that the screw holes are not always enough centered in the insert. Theproblem may occur after a certain step in the production, i.e.

År 2009 startades det europeiska forskningsprojektet COST Action IS0804 med syfte att få mer kunskap om flerspråkiga barns språkutveckling och utveckla bedömningsmaterial anpassade för flerspråkiga barn. Inom COST Action fokuserar arbetsgruppen Narrative and discourse på berättelser (narrativer) som ett sätt att bedöma språk hos barn. Berättande liknar naturlig språkanvändning och anses ge en mer rättvisande bild av flerspråkiga barns förmåga än andra logopediska test. Av narrativgruppen utvecklades bedömningsmaterialet MAIN (Multilingual Assessment Instrument for Narratives). Med MAIN kan barns produktion och förståelse av berättelser undersökas på makrostrukturell nivå.

Previous research in the area of leadership and stress has shown that the leader plays an important role but in what way is still an issue to explore. A qualitative approach was used in this study to develop an increased understanding of the leader's experience of stress using four themes; leadership, stress, control and organizational factors. A total of 12 semi-structured and un-structured interviews were carried out with 6 leaders, three females and three males. The data was transcribed and thematic as well as narrative analysis was conducted.The results indicates that leadership stress is caused by a lack of control and that factors intrinsic to the role as a leader both facilitates and complicates the leaders situation when facing stress..

The purpose of this essay is to discuss and compare different ways of learning new words and expanding your vocabulary in a foreign language. This is done by an examination of relevant literature and available research, as well as by an empirical study with two upper secondary school classes, in which two different methods are put to the test: one traditional method of the kind that is found to be most common in second language acquisition, and one designed to take existing research into account. The results show that, although effective in the initial stages of acquisition, the traditional method, where words are learned in isolation and via translation to L1, results in a very limited form of knowledge. A big part of the words acquired via this method is also forgotten soon afterwards. The other method, where words were learned and tested in its proper context, was found to result in a broader form of vocabulary knowledge, covering more aspects, and that remained over time.

In this study, we investigate various lighting applications in a virtual environment, where we compare between light based in naturalism (natural light) and pictorialism (artistic light). The purpose of this study is to gain further knowledge in lighting, which is increasingly important for game graphics. Theory are examined to gather information and recommendations on how to use various light settings that convey different emotions. We then use this information to illuminate the environment that we have built. The environment is presented in Unreal 4 for respondents who are allowed to move around freely in the environment.

Många av de skador som inträffar inom ridsport är ofta orsakat av ett trauma (Havlik, 2010) vilket för det mesta resulterar i allvarliga skador. De psykologiska reaktionerna som uppkommer hos skadade ryttare är mångfacetterade och rehabiliteringsprocessen och resultatet är ofta en följd av ryttarens kognitiva värdering av sin skada (Wiese-Bjornstal, Smith, Shaffer & Morrey, 1998). Syftet med studien var att ur ett holistiskt perspektiv (1) skapa en förståelse över vilka psykologiska reaktioner ryttare upplever efter att ha råkat ut för en allvarlig idrottsskada, (2) förstå hur deras upplevelse av rehabiliteringsprocessen påverkade deras kognitiva värdering samt (3) förstå vilka faktorer som underlättade eller försvårade vägen tillbaka till aktiv ridsport igen. En kvalitativ metod i form av narrativa intervjuer användes och analysmetoden var holistiskt-innehåll (II), holistiskt-form (III) och kritisk narrativ analys (VI). Antalet deltagare var två ryttare som har tagit sig tillbaka till ridsporten efter en allvarlig skada.

 This study examines the way Swedish students in Upper Secondary School respond to two excerpts from a classic Swedish novel. The paper?s aim is both to give an overview over some of the theoretical concepts concerning the field of reader-response criticism, and to describe and analyse what the students experience in their first meeting with an older text. The background to my interest is the many studies showing that young readers regard reading of fiction in school as boring. By using the method of written reading responses I want to contribute to a deeper understanding of how an older text can be received, understood and engage its readers.

Background: Triage is the sorting of patients according to the severity of medical assessment. Triage has a long history of use in Anglo-Saxon countries but is a fairly new method in Sweden. Researchers have described the Manchester triage group method (MTS) and a literature review of the concept; working contentment and competence focusing on triage. Aim: The ambition with this study was to describe a number of triage nurses working conditions. The research questions were; working with MTS- does it bring work contentment? What kind of competence is needed? Method: Data was collected from 74 triage nurses by a questionnaire containing 37 questions and two questions provided the nurses the opportunities to describe their triage experiences.

Voltage sag indices are a way of quantifying the performance of the power supply, as far as voltage sags are concerned. Indices can be defined for individual events, for individual sites, and for a whole system. A standard method for single-event methods is part of IEC standard 61000-4-30.This thesis emphasizes the importance of voltage sag indices and different methods for calculating three-phase voltage sag characteristics. Three-phase events measured in a medium network voltage over period of one month were analyzed, results examined and statistically evaluated. An algorithm for calculating voltage sag characteristics and indices was created in Matlab.