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352 Uppsatser om Formation of cracks - Sida 11 av 24

Kartläggning av OFP och defektrelaterade parametrar : Inriktning på termisk utmattning

I både kvalitets- och kontrollarbete finns det behov att kunskapsmässigt komma så nära verkligheten som möjligt vid fastställande av defektparametrar för oförstörande provning (OFP). Orsaken är att olika acceptanskrav och bedömningsgränser är svåra att klarlägga när man inte kan förlita sig på att uppgifter är realistiska. I projektet har olika erfarenheter använts för att få en bättre helhetsbild i området för defektparametrar och oförstörande provning.Denna rapport redovisar den inledande delen av forskning och utvecklingsprojektet PLANT 2, där olika defektparametrar kartlagts och en teoretisk bedömning utförts med avseende på hur signalsvaret påverkas för OFP-metoderna virvelström (ET) och ultraljudsprovning (UT) i form av puls-eko (PE) och ?time-of-flight-diffraction? (TOFD).Definitionen av redovisade defektparametrar följer i stort SKI-rapport 95:70 [1]. Defektparametrar i denna rapport redovisas i bilaga 1.Vid bedömningen av defektparametrarnas inverkan på OFP-tekniker, har drift¬inducerande defekter och tillverkningsdefekter hanterats separat.

Kartläggning av OFP och defektrelaterade parametrar : Inriktning på termisk utmattning

I både kvalitets- och kontrollarbete finns det behov att kunskapsmässigt komma så nära verkligheten som möjligt vid fastställande av defektparametrar för oförstörande provning (OFP). Orsaken är att olika acceptanskrav och bedömningsgränser är svåra att klarlägga när man inte kan förlita sig på att uppgifter är realistiska. I projektet har olika erfarenheter använts för att få en bättre helhetsbild i området för defektparametrar och oförstörande provning.Denna rapport redovisar den inledande delen av forskning och utvecklingsprojektet PLANT 2, där olika defektparametrar kartlagts och en teoretisk bedömning utförts med avseende på hur signalsvaret påverkas för OFP-metoderna virvelström (ET) och ultraljudsprovning (UT) i form av puls-eko (PE) och ?time-of-flight-diffraction? (TOFD).Definitionen av redovisade defektparametrar följer i stort SKI-rapport 95:70 [1]. Defektparametrar i denna rapport redovisas i bilaga 1.Vid bedömningen av defektparametrarnas inverkan på OFP-tekniker, har drift¬inducerande defekter och tillverkningsdefekter hanterats separat.

Tjejer spelar vackert och killar spelar högt en studie om genus och de sociala faktorer som påverkar barn i deras val av musikinstrument

The purpose of this essay is to examine whether the descriptions of Stalin's terror in history textbooks for high school changed from the 1950s until the 2010s. Since previous research shows that textbook content is influenced from different directions and that it dominates in teaching, therefore I want to find out what similarities and differences that exist in the textbooks. The survey is based on a qualitative approach because I want to have a profound picture of the descriptions of Stalin's terror. The results of the survey show that the number of casualties and the descriptions on the famine has changed over time. Furthermore, textbooks also found it difficult to distinguish between terror, politics and ideology.

Identitet och berättande : i Oline Stigs Den andra himlen

This essay investigates how the author Oline Stig creates identities for her main characters in three short stories; Midsommar, Polly Maggoo and Den längsta dagen from the collection Den andra himlen (2007).My investigation is based on concepts chosen from psychology and narratology: First, Jonas Stier?s definition of human identity. In his definition he focuses on a person?s social context. He also considers identity formation as an ongoing, ever- changing process.

Partnerskap i samförstånd? En studie av den regionala partnerskapsmodellen ur ett intresseperspektiv

In 1998 a new regional development policy was introduced by the Swedish government. A central feature in the policy was the formation of partnerships at the regional level. The partnerships were meant to consist of local and regional stakeholders, representing a great variety of interests, who would collaborate in order to improve regional development. The new policy was promoted, besides being more efficient, as a way to broaden political participation and to break male-dominated structures.This thesis discusses whether the regional partnership actually favours ?women's interests?, in terms of how the relationship of power between women and men is constituted by the model.

Geokemisk undersökning vid Rävlidmyrgruvan, Västerbottens län : provtagning, analys och förslag till åtgärder

The mining industry, in terms of ore excavation and metal production, is and has been important to the Swedish economy. In connection with the ore excavation process, large amounts of partly sulphidic waste are produced. When the metal sulphides are exposed to air and water they are eventually oxidised, which leads to the formation of acidic water with high concentrations of metal cations and sulphate ions, so called Acid Mine Drainage (AMD). This water may reach the nearest surroundings and cause negative environmental effects. By covering the waste with soil or water, the oxidation process can be minimised. At the Rävlidmyran mine in the county of Västerbotten open pit mining took place between 1951 and 1991.

Ett Feministiskt initiativ. Hur och varför?

In Sweden, a new feminist political party (?Feministiskt initiativ?) was founded in 2005. The main objective of this thesis is to study the reasons and driving forces behind the establishment of the party, as well as to explain the timing of its foundation in 2005. The theories that are used in the study are focused on the individual founders, and the empirical material comprise in essence of interviews with founders.The study reveals that several individuals, as well as political movements were involved in the process of the party establishment. Various interacting factors influenced the founders to choose the strategy of setting up a political party.

The RECK gene and invasive cancer development : the significance of RECK in angiogenesis and inhibition of matrix metalloproteinases

The RECK gene is a relatively new discovered gene with important implications for cancer research. The research has been primarily concentrated on the human gene with the ultimate aim to identify the invasive characteristics. Up regulated RECK is linked to significantly prolonged survival rates in patients with severe forms of malignancies. RECK is normally expressed in all cells of the body and has an important role in the balance between destructive and constructive features of the extracellular matrix. The RECK protein is a membrane-bound glycoprotein that inhibit matrix metalloproteinases which has the function of breaking down the ECM. There is a significant correlation between RECK gene expression and the formation of new vessels, presumably via the mediation of VEGF which is an important and powerful inducer of angiogenesis.

Tillämpning av ett medium : kvalitativ pilotstudie av två generationers användning av iPad

This study aims to investigate and describe the direction of the ideological development of the Swedish gymnastics association Gymniska Förbundet. Between 1928 and 1932, this organization transformed from a purely gymnastic and cultural association into an influential platform for the production of Swedish nationalist ideology. Based on theories of National Socialism?s formation within modern society, the analysis focus on the conditions regulating Gymniska Förbundets relation to modernity. Thus the study examines the association?s ideas in relationship to the concept of modernity.

Identitetsskapande på Internet : En kvalitativ studie om det sociala nätverket Facebook

As computerized communication and the Internet have evolved, the possibility to express and affirm one?s identity in new ways has also been created. Facebook, which has taken a leading role among the social fora on the Internet and succeeded worldwide, is my choice of study due to the number of people that actively choose to present themselves on it. The purpose of this thesis is to study the identity construction on Facebook through the activities a member partakes in, as well as how the presentation of oneself is written and if it is a result of a self-reflective process of the individual.The rationale for the qualitative study has been personal interviews in order to get an insight into how the individuals use and present themselves on Facebook and - in the interaction with others ? how they construct their own identity. My hypothesis has been that we, in the interaction with others, have a great possibility to create and understand our own identities. The study results show that identity formation is a constant process and that it is indeed a self-reflective project.

Sveriges mest monumentala målning? : Mediala praktikers betydelse för formeringen av kulturarv. En undersökning av 1987 års debatt om Carl Larssons Midvinterblot

This essay examines the debate that arose in connection to the sale of Carl Larsson?s monumental painting Midvinterblot in 1987. My main purpose is to examine which meanings the debaters ascribed Midvinterblot and in which way the debate influenced the paintings significance as cultural heritage. I will therefore argue that the debate initiated a renegotitation of the paintings meaning as cultural heritage. In the debate the debaters emphasized the National Museum?s responsibility over cultural heritage, Midvinterblots aestethic, the paintings economic value and its national implications.

New public management och den svenska gymnasieskolan : En ideologikritisk analys av Gy11-reformen kopplat till organisationskonceptet new public management

The purpose of this ideology critical study is to investigate the hidden content in the reform Gy11 and compare it with the concept new public management. After the clarification of the hidden content, we compare the structure of the organization in Swedish high schools with the structure in public sector called new public management. The main questions of this study are the following: Is it possible to see the foundation of new public management in the Swedish high schools when it comes to the views of knowledge and the formation of goals? Which similarities can we find when we look at the organization new public management and the Swedish high school?The result showed many similarities, both regarding the views of knowledge and the formations of goals. The structure of new public management has been largely implemented in the Swedish high schools and the schools now focus more on instrumental knowledge rather than universal knowledge based on understanding.This is not surprising due to the social progress.

Släktnamn i Sollefteå : En studie av tillnamnsbruket i Sollefteå församling 1700-1820.

This study aims to investigate and describe the direction of the ideological development of the Swedish gymnastics association Gymniska Förbundet. Between 1928 and 1932, this organization transformed from a purely gymnastic and cultural association into an influential platform for the production of Swedish nationalist ideology. Based on theories of National Socialism?s formation within modern society, the analysis focus on the conditions regulating Gymniska Förbundets relation to modernity. Thus the study examines the association?s ideas in relationship to the concept of modernity.

Nivådiagnos med sensorfusion : Utveckling av koncept för nivåmätning i lutande tankar 

Today?s system to measure the volume in a tank consists of a vertically placed sensor. When a vehicle is tilted the level of the fluid might change and if the volume is calculated based only on the information from the sensor it could result in a incorrect value.This thesis exams a new method to calculate the volume in tanks by using sensor fusion to crosscheck the i formation from the level sensors when the vehicle is tilted. The information is then used to see if it is possible to identify the grade of tilt by the change of fluid level. If the grade of tilt can be measured then the volume can be calculated in a more accurate way.

?Hjärtat känns inte svart längre? : En kvalitativ studie om hur den kriminella bakgrunden kan påverka ungdomars identitet

The aim of the study is to gain a deeper understanding of how young people's current identity is affected by their criminal background. We also want to understand the impact of resources in these young people?s social networks (that is their social capital) on their life course and formation and reformation of their identity. The theoretical frameworks used (as a tool to be able to analyze the empirical data) are theories of stigma, identity and social capital. The empirical study was conducted using semi-structured interviews that focused on questions about the life-story of informants.

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