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.

The purpose of this study is to find out how social workers in one medium and one smallmunicipality in central Sweden perceive the need of financial support for young adults formore than one year and what the causes might be. To answer our research questions aqualitative research method was used and four social workers were interviewed. The resulthas been analyzed based of social exclusion, stigma, as well as on structural and individuallevel and linked to previous research. Our results show that although young adults are anexception for long duration for financial support, there are those who lack other means ofsupport for a long time. The results also show that young adults often are recurring in thesocial services, and they are long-lasting.

Studien ?Lärares gemensamma lärande - En kvalitativ intervjustudie av lärares uppfattningar kring samverkan och en gemensam handlingsarena? har syftet att öka kunskapen om betydelsen av lärares möjligheter till att se varandra i handling och ämnar besvara följande frågeställningar; Hur formas, upprätthålls och utvecklas samverkan mellan lärare?, Vilken betydelse utgör en gemensam handlingsarena för lärares samverkansstrategier? Den här studien utgår från teorin om det kollektiva lärandet. Denna teori innehåller tre typer av samtal; berättandet, det gemensamma reflekterandet och det gemensamma intentionsskapandet, som i denna studie ses som villkor för att nå upp till ett kollektivt lärande. Teorin har vidareutvecklats genom ett införande av begreppen ?nätverk? och ?gemensam handlingsarena? som för den här rapporten eventuellt kan ses som ett fjärde villkor för ett kollektivt lärande.

The aim of this study is to explore the approach and views on female genital mutilation(FGM) among young women from Somalia, and how they perceive the tradition afterimmigration to Sweden. This is structured under the following questions: What do theyknow about FGM? What are their experiences? And what do they reckon about FGMtoday? The study is based on one recorded interview with a group of young femalesfrom Somalia. The data were analysed using qualitative content analysis. The women?sfeelings were ambivalent though they on one hand opposed FGM because of serioushealth risks, but on the other hand were conscious of the tradition?s great influence inthe social network and daily life.

Nätverk med stöd av Internetportaler skulle kunna vara en bra lösning på delar av föreningars kundhanteringsproblem. Det möjliggör skapandet av ökat mervärde på sponsorernas satsade kapital samtidigt som det kan generera ett ökat socialt kapital för de involverade aktörerna. Detta sociala kapital skulle sedan kunna omvandlas till ekonomiskt kapital i en förlängning. Det är dock så att satsningen kräver en del resurser från föreningens sida och ett brinnande engagemang för att fungera tillfredsställande. Föreningen kan dock vinna mycket då nätverket kan skapa en större sammanhållning mellan förening och sponsorer vilket borde öka långsiktigheten i sponsorernas engagemang.

Informationssäkerhet har idag en viktig roll inom organisationer. Det finns undersökningar som visar på att attacker ökar för varje år. För säkerhetskritiska organisationer som kommuner är det därför viktigt att man har uppdaterad säkerhetsteknik, då man lätt kan falla efter i det snabbt utvecklande ämnet informationsteknik. Uppgiften som gavs av Nexus AB var att kartlägga och utvärdera en kommuns informationssäkerhet. De ville få reda på hur det egentligen låg till med informationssäkerheten i en Stockholmskommun.

Active work to increase the efficiency of energy use is taking place in Sweden and throughout all of Europe. Electricity is an important part in our society?s energy system which means that the electrical grid operators and associated therewith has a central role in this work. Monitoring and controlling the electrical grids are managed from the distribution system operator?s DC, dispatch center.The aim of this report is to examine how the operations in a typical DC on the Swedish electricity distribution network will look like in five to ten years.

This study investigates the use of the social network Facebook among 67 Swedish libraries; 27 academic libraries and 40 public libraries. Data is collected through an analysis of the libraries? Facebook pages and through an email survey. To analyze the data, a series of statistical analyses were performed.The results indicate that the public libraries more actively posted Facebook updates than the academic libraries and that the libraries that had a policy for use of Facebook/social media more actively posted updates than those libraries that did not have such policy. The libraries use Facebook mainly to post links and photos and to announce events, provide book recommendations, and to emphasize special occasions.

The work examines geographical variations of bicycle use in Trondheim municipality with the aim to create an understanding of what influences the use of bicycles and explain the geographical travel pattern for cycling. The work focuses on the how physical structures generates different transports effects. Where bicycle travels in Trondheim municipality are undertaken is described by using network analysis in ArcGIS, based on aggregated data from the travel habit survey (RVU) in 2009/2010. Trondheim municipality is divided into smaller geographical units (zoner) whose characteristics are described by 19 variables, categorized into 6 groups; Distance, Land use, Topography, Bicycle Facilities, Road characteristics and Demographic factors.By linear regression analysis in SPSS and ArcGIS Spatial Analyst, an explanatory model is elaborated. The variablesdistance to the regional center, workplace density, percentage separate bike paths and hilly terrain explains 78 percent of where cycle journeys are undertaken.

The aim of this study is to describe how unemployment is experienced by unemployed persons and how this situation affects their health and wellbeing. A qualitative semi structured interview method has been applied. The study includes seven persons in the age between 29- 58. Four of them were women and three were men. The following four themes are presented in the study: psychological health and wellbeing and how unemployment is experienced, social factors, economic factors and, how they value a job.

This essay deals with the subject of communication through Facebook. In this survey we studied 100 youths from Karlstad and their communication habits and behavior patterns on Facebook. The social network site Facebook has since its start in 2004 made a mark in modern communication. Today in 2010 the site has more than 500 million users. This paper wants to study what happens to other types of communication.

This paper analyzes Allt, Martina Lowden's novel from 2006, from a media discursive perspective. The theoretical framework consists of Michel Foucault's discourse analysis, Friedrich Kittler's research on hermeneutic reading, and N. Katherine Hayles's studies of pattern?randomness controlled meaning production. Various examples on how communication technology influences the narrator?s act of writing illustrate the medial discourse surrounding the body of Allt.

The purpose of this report is to map the situation for girls residing in women?s refuges because of honour violence. The questions posed are: What forms of abuse have been described to staff working with females in refuges for victims of honour violence? What are the deciding factors that lead to a girl leaving her family and being placed in a refuge? What are the help needs of girls residing in women?s refuges because of honour violence? Five qualitative semi-structured interviews were conducted amongst staff from five different women?s refuges specialising in honour violence. The results were analysed using Foucault?s theories on power, victim vs actor, victim processes along with a victimisation perspective.

This project was aimed to study the degradation of polystyrene-butadiene-styrene block copolymer (SBS). SBS is used to modify bitumen, the binder in asphalt. From earlier studies it is known that SBS degrades in bitumen, but the degradation products have not been identified. To be able to determine the long term effects of SBS in the environment, degradation products need to be identified. Polystyrene forms rigid blocks with polybutadiene as a rubbery matrix between the ridgid blocks.

Denna studie i socialantropologi är baserad på kvalitativa intervjuer av fyra unga killar med rötter i hederskulturen. Tre av dem är medlemmar i gruppen Sharaf Hjältar och kämpar aktivt mot hedersförtryck. I studien ingår även en fältstudie av Sharaf Hjältars arbete i form av föreläsningar. Fokus ligger på dessa unga killars personliga erfarenheter från sin uppväxt i familjer präglade av hederskulturen, killarnas arbete som Sharaf hjältar och deras erfarenheter i relation till hur andra har det. Det sistnämnda inbegriper så väl invandrare som svenskar, tjejer som killar och närstående/bekanta som för killarna okända individer.