Microproduction, also called distributed generation, is something that has become more and more popular in the electric grid. Microproduction can however lead to unacceptable performance if several units are installed in the same low voltage network. It is therefore good to know a limit where the performance of the low voltage network becomes unacceptable based on given parameters. This limit is usually called hosting capacity.In this report the hosting capacity with respect to voltage and current have been studied in three low voltage networks which are located in Falu Elnäts concession area. This has been done by simulations in a GIS-program where critical times of the grid have been simulated.

I dagens samhälle har många kundföretag problem med datalagringen vilket beror på att behovet av att lagra data började öka kraftigt under 2000-talet och har fortsatt öka sedan dess. När kundföretagen började använda sig av virtualisering så expanderade även datastorleken. I samband med att datastorleken växte ville företagen att data inte skulle lagras lokalt utan att den skulle vara lagrad på en central plats som en serverhall och vara överskådlig.Studien utfördes på tre sätt, först undersöktes vilka datalagringslösningar som fanns och det skedde genom litteraturstudier. Därefter kontaktades företag som använde olika lösningar för datalagring. Nästa steg var att kontakta de leverantörer som kundföretag använde sig av och som levererade lösningarna.Under arbetets gång upptäcktes olika lösningar på problematiken med ett ökat datalagringsbehov.

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 aim of this study is to through six interviews, with six experienced, social workers?, in three cities, understand how the child?s position in the Swedish child protective services? enquiries has change, and the factors behind it. The aim is also to compare if the social workers? view of the child?s position in the enquire has change accordingly to Socialstyrelsens intentions of BBIC. The theoretical approaches that was used is the new institutionalism, the Shier?s pathways to participation and the term discretion.

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.

According to the curriculum the Swedish school system should aim to let the democratic values permeate the school as a whole, and the school should assume each student's individual abilities in teaching. (Lpo -94) Democratic education is what the pragmatist John Dewey strongly encourages in his book Democracy and Education, which is why he stands for the theoretical framework of the concept of democracy in the school context. This study aims to examine whether and if so, the social roles in a classroom can affect students' opportunities for learning. The main research questions asked were:How can the social roles affect students' opportunities for learning in a classroom? How do students perceive that the social roles in the classroom affect their opportunities for learning? This has been investigated by two complementary perspectives.  Partly thru a student perspective to raise the students 'own experiences, and partly from an outside perspective to show how I, as an observer can see that social roles affect students' opportunities for learning.

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.

Avsikten med vårt arbete är att undersöka vilka aktiviteter som en förvaltningsorganisation utför på sina IT-system och om det finns några skillnader i dessa beroende på om organisationen förvaltar åt sig själva eller om det utförs för kunds räkning. Detta som ett led i att ge de som arbetar med, eller kommer att arbeta med, systemförvaltning en inblick i eventuella skillnader mellan förvaltning av egna system och förvaltning av en eller flera kunders system. De slutsatser vi dragit ur denna undersökning är att det inte förekommer skillnader i vilka aktiviteter som ingår i förvaltningsarbetet, däremot varierar det i vilken utsträckning man väljer att utföra dem..

The aim of this study was to describe how the best interest of the child can be constructed in investigations concerning permission for international adopt, where adequate parenthood is investigated. Qualitative research interviews were used as method. Seven investigators from six different sections of the city of Stockholm were interviewed. The information was analysed on the basis of a sociological approach to law and social constructionism.The result showed that adequate parenthood is a condition in the interest of the child. Adequate parenthood is specified as the parent?s qualities and possibility to care for an adopted child.

The aim of this project is to find a concept solution for a wireless transmitting system, installed to transmit data from a hydrophone of the ocean floor down by a wave power generator to the office on shore. The project is a literature review in which previous observations and tests are analyzed and put together to find a solution. The result was a comprehensive solution that includes an acoustic modem to transfer captured information from the bottom to the surface, wirelessly through the water. The information is then sent fron the surface on radio waves through the GSM network to the office on land. Between under and over water there are components to convert information between acoustic waves and radio waves, but also various types of modulation, such as amplitude and frequency modulation is required..

The purpose of this essay has been to examine how the city of Helsingborg´s prevention of alcohol and drug use among youths is laid out. It has been of special interest to examine the youth centers (after school programs) preventive work with youths and its effects on frequency of alcohol and narcotics use among youths.The people we have interviewed are all involved in the three organizations: the youth centers, schools, and social services. The results showed that the youth center staff does not think that they work actively preventive against alcohol and narcotics. On the other hand, the staff at the youth centers points out that just keeping the youths in the neighbourhood and making them involved in the activities at the youth center, is preventary work. The staff at the social services points out that it is not the facilities that is part of the preventive work but the activities and the skill of the staff that is improtant for the youths..

The aim of this study has been to investigate the significance of the newly started project Vimmerbymodellen for unaccompanied young refugees. This regarding to how the unaccompanied young refugees are participating in creating networks and meeting points in the local community. Vimmerbymodellen is described as an integration project where the nonprofit sector collaborates with the municipality. The empirical material has been collected through semi-structured qualitative interviews where five unaccompanied young refugees and four involved adults have been interviewed. The empirical material from these interviews has thereafter been analyzed through the concept of social capital, identity and empowerment.The main result of this study shows that participation in the project is expected to contribute to the creation of networks and meeting points which has significance for unaccompanied young refugees.

Det är viktigt att tekniska hjälpmedel har hög grad av användbarhet. Speciellt viktigt är det att teknik som används av Räddningstjänsten fungerar bra eftersom det ökar möjligheterna för Räddningstjänsten att klara sitt uppdrag att rädda liv och egendom. När det handlar om användbarhet i system är det viktigt att systemet är lätt att lära och enkelt att använda, vilket bidrar till ökad användningsfrekvens och större tilltro till det. Detta examensarbete innefattar av empiriska undersökningar som syftar till att beskriva de användbarhetsproblem som existerar i beslutsstödsystemet Paratus Mobile System som används vid Räddningstjänsten i Piteå. För att få veta användarnas åsikter om användbarheten och den utbildning de fått för att hantera systemet intervjuades sex användare.

The purpose of this essay was to investigate affecting factors concerning social workers in social services assessments with cases of abuse. We wanted to see if social workers in social services tend to make different assessments of the need of substance abusers care. Our survey was carried out as a vignettesurvey with complementary interviews as means to deepen the outcome results.Our survey showed that the included social workers in social services in some senses make different assessments when it comes to choice of effort put in for the client. We shed light on different factors and circumstances, which could bear meaning for the social workers in social services assessments. Examples of factors were the social workers in social services age, gender, working experience and attitude towards substance abusers..

Det blir allt vanligare att utveckla mobilapplikationer för flera plattformar parallellt, samtidigt ärden information som finns tillgänglig för metoder av detta slag knapphändig.Rapporten beskriver utvecklingen av en mobilapplikation till flera plattformar. Det verktyg som använts är ramverket PhoneGap, med hjälp av PhoneGap kompileras en webbapplikation till en mobilapplikation. Det innebär att en webbapplikation utvecklas med hjälp av verktyg somHTML5, CSS3 och JavaScript. För att få en ?mobilkänsla? har ramverk som jQuery Mobile använts.