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5687 Uppsatser om Power quality - Sida 66 av 380

Urval av facklitteratur: En komparativ litteraturstudie kring beståndsutveckling av facklitteratur på folkbibliotek.

The aim of this study is to investigate methods of collection development, the users? influence on selection and quality aspects, focusing on non-fiction literature in Swedish public libraries. To find out opinions of collection development, I use the method comparative literature study. Antonio Gramsci?s concept hegemony forms the theoretical background, and hegemony as concept is related to a library context by using Maj Klasson?s text on the librarians? different positions of authorities.

Du vet ju vad vårt styrdokument säger... : En essä om det mätbara och det svårmätbara lärandet i förskolan

My essay begins with two stories showing two different perspectives when looking at learning in preschool. These two different learning styles I have chosen to call, the measurable and the difficult to measure learning. As a pedagogue I am involved in both events. In these events I describe how different we pedagogues interpret our governing documents on children's learning. By describing how the educational activities are designed differently in the two events, I try to highlight the pedagogues views on learning in preschool.

Hur väljs spelfilm? Urvals- och inköpsprocessen hos Bibliotekstjänst samt urvalsprocessen hos svenska folkbibliotek

The main purpose of this thesis is to examine the process of selecting films at Bibliotekstjänst and at Swedish public libraries. The tools that have been used for analysing and interpreting the results from the interviews and the questionnaire are theory-based models describing the selection process concerning film and Carl Gustav Johannsen?s quality definitions. The result of the investigation shows that Bibliotekstjänst doesn?t really work with any quality definitions in their selection process.

Lärare och skolbibliotekarie ett udda par som bör dra jämnt. En studie i samarbete på en högstadieskola

This Masters thesis concerns collaboration between teachers and librarians. Three theoretical perspectives, profession, power and legitimacy, are used to analyse the results of written interviews with eight teachers and one librarian at a comprehensive school. We did not find evidence of any deeper collaboration between teachers and the librarian. The effects of profession had little impact on the relation although the involved parties seemed to appreciate differences in education and points of view. The teacher retains power over education and grades while the librarian holds sway over the physical library and the purchase of books and other media.

Konstruktion av turbinmodell för kaplanturbiner

Denna rapport beskriver arbetet med utvecklingen av en ny modell för kaplanturbiner. Utvecklingen bygger på två kopplade differentialekvationer som under arbetets gång anpassats och implementerats i turbinmodellen.Modellen beskriver hur vattenflöde och turbinmoment påverkas av avvikelsen från den optimala kombineringskurvan för vinklarna på turbinens ledskena och löphjul, och är anpassad för ett referensaggregat med tillgängliga provdata. Även övriga enheter i vattenkraftaggregatet modelleras och sätts samman med frekvensregulator och elnät för att simulera aggregatets reglerstabilitet i önätsdrift.Verifieringen av turbinmodellen sker genom försök att återskapa de befintliga verkningsgradskurvorna med hjälp av modellen. Resultatet visar en god följning av de verkliga kurvformerna, dock med något lägre maximal verkningsgrad.Verifieringen av önätmodellen sker genom att prova stabiliteten i nätfrekvens och turbineffekt vid stegpålastningar. Resultatet ger en stabilare reglerstabilitet än i verkligheten, men uppfyller ändå förväntningarna på en fungerande modell.This report describes the development of a new kaplan turbine model.

Förekomst av leukocyter i råsperma hos semingaltar :

Detection of leukocytes in semen from boars is part of the routine control of semen quality. Leukocytes in semen can cause damage to spermatozoa that leads to impaired fertilization. In the artificial insemination (AI) industry there are standard routines for the quality control of the boars and of the neat semen before use. Since 2001, Quality Genetics has not done the leukocyte examination on semen samples from boars which are used for the production of pigs for slaughter. The purpose of this study was to investigate the occurrence of leukocytes in semen from AI-boars. The questions addressed were whether there are boars that have leukocytes in their semen and how frequently it occurs and, moreover, if there are differences between breeds, or even between individuals whose semen was checked before use in AI-dose production compared to those which were not. The study included a total of 135 AI-boars, of which 67 were Hampshire, 35 Yorkshire and 33 Landrace, all belonging to Quality Genetics AI-station in Hållsta.

Utvecklingsarbete, Sagor : Läs- och skrivutveckling under ett sagotema

This thesis has the purpose that through a text analysis examine how four schoolbooks for high school treats the religions Judaism and Hinduism. The schoolbooks are from the years 2000, 2001, 2003 and 2009. The perspectives are from a religious viewing point, that means that the women are religious, Jewish feminists and Hindu feminists. The theories used are written by these women and are academic litterature.  The questions are how are women represented in the schoolbooks, is the feminist critique present or are the two religions represented and described in an invariable way, and is the description of Judaism and Hinduism consistent with the curriculum?The text analysis used in this examination means that reality is organized through and by the language used by the actors in that reality.

Debatten som inte förekom

The purpose of this paper was that through discourse analysis look at how gender and the equality debate is created between two head debaters and commenter's on a forum. We have used Norbert Elias and John L. Scotson´s (1999) theory about Established and Outsiders to see power struggles between groups in the debate. With Jonathan Potters analysis tools in his book Representing Reality (1996) we were able to analyze the debate texts. Using discourse psychology, we were able to see how people use tactical discourse in their texts to represent themselves and the world in different ways.

Livet efter en viktminskningsoperation : En kvalitativ intervjustudie med kvinnor som genomgått en viktminskningsoperation

Background: Sleep-disturbances in persons with Alzheimer´s disease are prevalent. They are characterized as increased frequency and duration of awakenings, decreased slow-wave sleep, REM-sleep and increase of day-time napping. Depression and lower quality of life are associated with sleep-disturbances. Altogether a significant source of stress for caregivers and an important factor in institutionalization. Non-pharmacological treatment alternatives are rare.Method: Single-case A-B-C design, with non-concurrent multiple baselines, a pilotstudy.Aim: To explore if an educational program on sleep, sleep disturbances and behavioural change directed towards caregivers improved sleep, depression and quality of life in persons with Alzheimer´s disease living at home.

Planerat kärnbränsleförvar i Forsmark : - med fokus på episyenit

It takes a very long time for ionizing radiation of used nuclear fuel toreturn to a natural background level, for this reason one of the requirements for theselection of the location of a repository was that the environment as well people'shealth would be protected from the harmful effect of radioactivity. This requirementmeans that the waste must be isolated in a geological formation. In Sweden therepository will be built in the crystalline bedrock. The location for the Swedish nuclearfuel repository at nearly 500 meters depth at Forsmark in Östhammar was decided 3June 2009. The repository will be located at Söderviken, close to the Forsmarknuclear power plant in a 1.90 billion year old bedrock that will accommodate 12,000tons of spent nuclear fuel.

EU:s normativa makt inom miljöområdet : En fallstudie om EU:s roll i det globala klimatarbetet

Over the past twenty years, the cooperation within the European Union (EU) has strengthened and expanded with both more number of Member States and stronger influence on international politics. The unique character of the Union and its ability to enforce peace and humanitarian intervention has attracted attention in political science. This prominent position of the Union is perceived by many scholars who often hold this derived from the Union's influence in international relations. Various terms have been used to define the powers of the Union. The British researcher Ian Manners states that the unique identity of the Union in the international arena is formed by its normative power.  An important policy area within the Union is the environmental cooperation.

Översättning och validering av Voice-Related Quality of Life

En röststörning kan sägas föreligga då rösten inte fungerar eller låter som den brukar så att det påverkar kommunikationen. Prevalensen för röststörningar uppskattas till omkring 6 % av den vuxna befolkningen. När rösten inte fungerar som den ska leder det till emotionella, sociala och funktionella svårigheter för individen och har negativ inverkan på livskvaliteten. Voice- Related Quality of Life (V-RQOL) är ett självskattningsformulär som mäter vilken inverkan en röststörning kan ha på individens livskvalitet. Detta instrument är internationellt välanvänt, men har inte funnits översatt till svenska.

Hegemoniska och icke-hegemoniska maskuliniteter - En kritisk diskursanalys av politiska texters och unga m?ns perspektiv p? v?ld i utsatta omr?den

There is a lack of consensus within politics on how to deal with the so-called youth problem that exists in vulnerable areas. The politicians' positions are communicated in speech and writing and influence the majority society's attitude to children in vulnerable areas. Children are at the same time a vulnerable group in society. They are dependent on adults and need their guidance and support throughout their upbringing. In vulnerable areas live children whose health is affected by social and economic vulnerability and discrimination from the outside world. By looking into how hegemonic masculinity as norms are formulated in Swedish political documents, in relation to experiences of stigmatization and violence among children from vulnerable areas, this study wishes to examine if children?s right to a life without violence is being respected in vulnerable areas.

Demokrati ur politikers och ungdomars perspektiv : - En diskursanalytisk studie om demokratiska förutsättningar i Norrköpings kommun

The democratic conditions in national states have change radically at the same time as the society has changed. Because of social and economic globalization processes, the states and government has lost power for the benefit of transnational and global institutions. That affects the democracy since the nation state earlier defined the domain of citizenship. At the same time, citizens? confidence towards political parties and politicians has gone down.

Design och konstruktion av laborationsutrustning till en kraftelektronikkurs

The purpose of this degree project was to build laboratory equipment for a new course in power electronics that starts this autumn 2010 at Uppsala University. The equipment is intended for student labs and it covers the most important areas of the course including rectifying, buck-/boost-converters and PWM-modulation. It is built as one sealed unit where all the electronics are built-in but visible and it has a connection board where students safely can connect the different circuits. The project has advanced from theoretical studies of circuit design, choosing of components and simulations to drawing the printed circuit board (PCB), soldering, case building, final testing and troubleshooting - basically most steps from an early idea to a final product. Measurements on the final product gave about the same results as the earlier simulations of the circuits and the result is overall satisfying..

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