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.

I dagens samhälle blir det allt vanligare att umgås genom datorn. Chatter, bloggar, forum och spelsajter växer lavinartat. Hur stor är utbredningen av detta bland skolungdomar och påverkar det det vanliga kamratumgänget IRL (In Real Life)? Hur ser lärare på chatt? Kan man dra nytta av det i undervisningen? Dessa frågor, bland annat, har tagits upp i detta arbete för att försöka koppla skolan till ett växande chattintresse..

A vulnerable group in society is people with ASD (autism spectrum disorders) or autism. This group seems to increase, mainly due to genetic factors but also environmental problems. Medical research has accelerated in the U.S. and Europe. The biggest problem for people with disabilities is the inability to communicate, both verbally and socially.

Thick skin in Texas - an investigation on storytelling and pictorial language. I took my starting point in a story about the cowboy Jaquin, who goes to the Tivoli, where he gets caught up in a dramatic adventure. I extracted three scenes from this story, and I experimented with whether it was possible to make the separate scenes tell their own story, in three separate drawings. Without depending on the frame story or on any kind of text. In this project I partly wanted to explore the possibilities of the drawing.

The construction and real estate industry represents a significant part of Sweden's total impact on the environment and mainly affects the following national environmental objectives: reduced climate impact, a good built environment and a non-toxic environment. By establishing internal rules, companies within the industry can reduce their environmental impact. SMT (AB Sandvik Materials Technology), a part of the industrial group Sandvik AB, has set a target that during 2014 develop a guiding document with special consider to the environmental impact during construction of office buildings, that they establish at the Swedish regional capital Sandviken, for both internal and external tenants. This study therefore aims to clarify which environmental aspects that the construction and real estate sector mainly are responsible for, and therefore should be part of a guiding document for a company for establishing office buildings, and to present arguments regarding the use of such a document. The study is based on literature studies and personal contact with other companies, in the form of e-mail conversations and a telephone interview.

In industry applications, such as power supply plants, the issue of interaction between fluid and structure is always presented. More precisely, the fluid flow affects the structure by applying force(s) on it and vice versa. As a result, the structure can move (vibrate) or deform. A good understanding of this problem can help to design the system in term of safety, stability and efficiency.This project aims to optimize and test the Unicorn FSI solver from the FEniCS project [1] to simulate the interaction of fluid and structure in an experiment, which was carried out at Vattenfall Research and Development. The target is to improve the Unicorn FSI solver to cope with a real industrial problem.

Detta examensarbete behandlar en utredning om möjligheterna att genom syntetiska erfarenhetsvärden från ett energisimuleringsprogram kunna uppskatta energiprestandan i en kontorsbyggnad. Energisimuleringsprogrammet som använts är Integrated Environmental Solution Virtual Environment. En känslighetsanalys har genomförts för att undersöka vilka parametrar som har störst påverkan på energianvändningen. Uppvärmningstemperatur, kylningstemperatur, värmeväxlareffektivitet, WWR (fönsterandel sett till total väggarea) samt uteluftsflöde gav störst utslag och de har därför undersökts vidare. Dessa parametrar har i grupper om tre kombinerats på ett bestämt vis och vidare analyserats med fyra olika regressionsmodeller. De två mest intressanta regressionsmodellerna har genomgått flertalet kontroller för att säkerställa deras giltighet.

Immersion is a construct that measures how deeply engrossed a user is with any mediated situation. In the field of game design, immersion is a significant aspect of what makes a game enticing, and as such it is of pivotal importance to create and maintain it to keep the player's mind off the real world while inside the confines of a game framework. According to the GameFlow theory, it is one of seven key tenets of evaluating and implementing a successful game design. Yet, certain multiplayer online games are designed in a fashion that in some cases seem to break immersion, where the player is frequently put out of action, sometimes for minutes on end. In this study, using online questionnaires, we discover that players, despite claims otherwise, seem to be in several ways affected negatively by this breaking of immersion.

Violence is put in a specific context when the police are the perpetrator of violence rendering violence possibly legitimate through sovereignty. The possibility of legitimization of police violence raises important questions of how such violence is legitimized and how resistance is conceived of and defined. I have interviewed seven people in Sweden from different backgrounds, all of whom share the experience of having been subjugated to police violence, including threats, harassments and physical violence.This paper analyzes the performativity of police violence through the relations between police violence, power, sovereignty, subjectstatus and resistance, in order to understand how police violence is being legitimized and to understand its consequenses with respect to those subjugated to it. I?ve also analyzed if this violence is being politicized and, in that case, how politicization is made possible.

Uppsatsen fokuserar på energideklaration i samband med överlåtelse, och vad den innebär för konsumenten, fastighetsmäklaren och förmedlingsprocessen, av småhus. Därför har två fastighetsmäklare samt representant från Boverket intervjuats, för att ge sin åsikt om ämnet. En representant för energiexperterna skulle även ge sin syn på ämnet, men försvann under tider för intervjuerna. Från och med 1 januari, 2009 är det krav på att alla byggnader, som tillhör en fastighet vilken säljs, skall energideklareras. Detta krav framförs i Lagen om energideklaration för byggnader, som i sin tur grundar sig i ett EG-direktiv från 2002.

The metaphor has been among us since a very long time, but despite over 1.000 years of reflection it is still uncertain how one should understand the concept. There are few, if any, doubts how to understand the definition of metaphor, but is it possible to find a real distinction between the metaphorical and the non-metaphorical? In this essay I seek an answer to when a metaphor is a metaphor or when it is instead a generally accepted concept of how something actually is. I will use previous research on the topic from Aristotle, Friedrich Nietzsche, Paul Ricoeur and George Lakoff and Mark Johnson. These persons have given me a wide perspective and approach to the metaphor ? and when a word should be considered as a metaphor or not.

Idag är datorn en självklarhet i de flesta hem. Ökningen i användandet av datorspel hos barn väcker intresset över hur bra så kallade lärospel fungerar för yngre barn. De spel som finns idag är utvecklade för att passa normalstörda barn. Hur väl fungerar de för barn som har någon form av funktionshinder och då framförallt med inlärningssvårigheter? Autism är ett funktionshinder som bland annat innebär inlärningssvårigheter och svårigheter i kommunikation.

Violence is put in a specific context when the police are the perpetrator of violence rendering violence possibly legitimate through sovereignty. The possibility of legitimization of police violence raises important questions of how such violence is legitimized and how resistance is conceived of and defined. I have interviewed seven people in Sweden from different backgrounds, all of whom share the experience of having been subjugated to police violence, including threats, harassments and physical violence.This paper analyzes the performativity of police violence through the relations between police violence, power, sovereignty, subjectstatus and resistance, in order to understand how police violence is being legitimized and to understand its consequenses with respect to those subjugated to it. I?ve also analyzed if this violence is being politicized and, in that case, how politicization is made possible.

AbstractToday?s society is multicultural which can lead to racism and prejudices. Racism is created by prejudices and values. These values and prejudices are passed on to the children through media parents and/or society. The children then make these values to their own.

Violence is put in a specific context when the police are the perpetrator of violence rendering violence possibly legitimate through sovereignty. The possibility of legitimization of police violence raises important questions of how such violence is legitimized and how resistance is conceived of and defined. I have interviewed seven people in Sweden from different backgrounds, all of whom share the experience of having been subjugated to police violence, including threats, harassments and physical violence.This paper analyzes the performativity of police violence through the relations between police violence, power, sovereignty, subjectstatus and resistance, in order to understand how police violence is being legitimized and to understand its consequenses with respect to those subjugated to it. I?ve also analyzed if this violence is being politicized and, in that case, how politicization is made possible.