Geothermal energy can be extracted from an aquifer, where the groundwater is used as heatexchange medium while heat and cold are stored in the surrounding material in the aquiferand to some extent in the groundwater. Application of aquifer storage for the use ofgeothermal energy is mainly used in large scale facilities and is limited to sites with suitableaquifers in the form of ridges, sandstone and limestone aquifers.Löwenströmska hospital in the municipality of Upplands Väsby, north of Stockholm, islocated nearby the northern part of the Stockholm esker. This means that it can be profitableand environmentally beneficial for the hospital to examine the possibilities of aquifer storagein the esker material next to its property.The purpose of this master thesis has been to investigate if geothermal energy storage with aseasonal storage of heat and cold can be applied within Löwenströmska hospital?s propertyarea using groundwater modeling. A hydraulic groundwater model was constructed inMODFLOW based on a simplified conceptual model of the groundwater system.

The idea for the project emerged when Nilorn wanted to get better control over their supplychain and improve operational efficiency. The company also want to reduce their expenses inthe continuous process of improving profitability. By choosing the right option oftransportation and mode of transport there are large potential savings for the company. Thisenables Nilorn to reduce the transportation costs and strengthen the environmentalresponsibilities by reducing their environmental impact.The flow of goods within Nilorn has over the past years increased significantly and most ofthe gods today is transported by air. The aim of this thesis is to analyse the supply chain of thecompany and evaluate the potential economic savings in this area.

The information flow of today is endless and the advances in information technology astounding. In today's information society it is of utmost importance not only to be able to find the right information but also to evaluate the information. The expression ?information literacy? is not a new one but it has never been as pertinent and essential as today. Information literacy is however not something which is easily and swiftly achieved.Swedish youth education is based on problem based learning in which the students are expected to research for material, evaluate their finds and use their skills to produce a good written or oral presentation.

The idea for the project emerged when Nilorn wanted to get better control over their supplychain and improve operational efficiency. The company also want to reduce their expenses inthe continuous process of improving profitability. By choosing the right option oftransportation and mode of transport there are large potential savings for the company. Thisenables Nilorn to reduce the transportation costs and strengthen the environmentalresponsibilities by reducing their environmental impact.The flow of goods within Nilorn has over the past years increased significantly and most ofthe gods today is transported by air. The aim of this thesis is to analyse the supply chain of thecompany and evaluate the potential economic savings in this area.

The idea for the project emerged when Nilorn wanted to get better control over their supplychain and improve operational efficiency. The company also want to reduce their expenses inthe continuous process of improving profitability. By choosing the right option oftransportation and mode of transport there are large potential savings for the company. Thisenables Nilorn to reduce the transportation costs and strengthen the environmentalresponsibilities by reducing their environmental impact.The flow of goods within Nilorn has over the past years increased significantly and most ofthe gods today is transported by air. The aim of this thesis is to analyse the supply chain of thecompany and evaluate the potential economic savings in this area.

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.

The idea for the project emerged when Nilorn wanted to get better control over their supplychain and improve operational efficiency. The company also want to reduce their expenses inthe continuous process of improving profitability. By choosing the right option oftransportation and mode of transport there are large potential savings for the company. Thisenables Nilorn to reduce the transportation costs and strengthen the environmentalresponsibilities by reducing their environmental impact.The flow of goods within Nilorn has over the past years increased significantly and most ofthe gods today is transported by air. The aim of this thesis is to analyse the supply chain of thecompany and evaluate the potential economic savings in this area.

This essay focus on the social media Twitter and how three Swedish PR practitioners view and use communication strategies for this social media. Twitter was created 2006 and is kind of a new channel in the digital world. The micro blog has over these few years attracted 175 million users across the world. In Sweden there is 91 000 registered users and according to a survey, 11 000 of them are active by tweeting once a day.Twitter is highly current and all kinds of people are using the social media, for example, artists, companies and individuals. Twitter is with its highly number of users building a new market for organizations to find their stakeholders.

The idea for the project emerged when Nilorn wanted to get better control over their supplychain and improve operational efficiency. The company also want to reduce their expenses inthe continuous process of improving profitability. By choosing the right option oftransportation and mode of transport there are large potential savings for the company. Thisenables Nilorn to reduce the transportation costs and strengthen the environmentalresponsibilities by reducing their environmental impact.The flow of goods within Nilorn has over the past years increased significantly and most ofthe gods today is transported by air. The aim of this thesis is to analyse the supply chain of thecompany and evaluate the potential economic savings in this area.

The need for snow-free surfaces at squares, bus stops, platforms, car parks and sports facilities increases and at the same time energy price rise and the environment is becoming a hotter issue. The construction of the ground heating systems often lack thermal insulation under the heating pipes, which means that the heat from the pipes not only warm up the soil surface but also heats the surrounding soil. The insulation also has more features, by insulating the risk of frost damage is minimized. The goal of this report is to demonstrate the large heat loss and energy costs in the absence of insulation under the heating system.The report begins with a scientific way to study and treating the soil heating system uses, and the theory involved. Furthermore it also deals with different routing principles of heat pipes depending on the facility.All calculations are made with so called finite element method (FEM), in COMSOL Multiphysics 3,5a, where models are created with different conditions.

Gothenburg municipality has a lot of natural water. This paper enhances the function and importance of water in the city. It also deals with the problems of sewage water and flooding. Gothenburg has reached an advanced stage of water planning. By developing a Waterplan, the municipality highlight that water has an important position in the urban planning.

SammanfattningSyfte och frågeställningSyftet med detta arbete är att förstå känslans betydelse för utövare inom kitesurfing,vågsurfing och friåkning inom skidor, där studien tar avstamp utifrån sex olika tematiskaområden: livsstil och identitet, gemenskap, frihet och lek, människa och natur, behov ochkropp och känslan (flow). För att besvara arbetets syfte formulerades tre frågeställningar:Hur upplevs utövandet av sporten i tid och rum, och vilka beskrivningar framträder? Avdessa beskrivningar, vilka av upplevelserna är mest framträdande? Hur visualiseras sportenskänsla?MetodStudien är en abduktiv kvalitativ sådan som bygger på en etnografisk ansats med deltagande observationer och sex intervjuer med fotoelicitering. En man och en kvinna representerade från vardera sport, det vill säga kitesurfing, vågsurfing och friåkning på skidor. Utifrån den intervjumall som skapats genomfördes semistrukturerade intervjuer som sedan ordagrant transkriberades i sin helhet.

Syftet med arbetet var att utveckla en metod för att rena fram cytokrom c-Id1 ur periplasma från Ideonella dechloratans. Inledningsvis undersöktes proteinets stabilitet vid låga pH. Flera olika kromatografiska metoder provades under arbetets gång. Till de inledande experimenten användes flow-through fraktioner från rening av annat protein som startmaterial. Senare försök gjordes på periplasma från I.

Uppsatsen strävar efter att utveckla kunskap om sambandet mellan förskollärares didaktiska ingripanden och förskolebarns möjligheter till att kreativt utforska och uttrycka musik. Undersökningen utgår från ett kulturpsykologiskt perspektiv som betonar interaktionen och det individuella kreativa prövandets betydelse för det musikaliska lärandet. Förskolebarns musikaliska utveckling påverkas av förskollärares musikaliska kompetens och didaktiska förmåga att uppfatta och stödja barns egna musikaliska uttryck. För att kunna observera barn och pedagogers förhållningssätt till spontant kreativt musikskapande, erbjöd jag tre pedagoger och deras barngrupper en överraskning, en resväska fylld med ordinära och hemgjorda rytminstrument som jag kallat den hemliga lådan. Metoden gav mig också möjligheter att utforska musikdidaktiska alternativ till förskolans traditionella musikverksamhet, de gemensamma och vuxenstyrda sångsamlingarna.

Föreliggande studie har som syfte att undersöka barns lärandepraktiker och meningsskapande samspel när de spelar digitala spel tillsammans. Barn i årskurs två har delats in i fyra grupper. Två av grupperna har spelat datorspelet Labyrint och de båda andra grupperna har spelat datorspelet Bloxorz. Data samlades in i två steg: först genom videoobservation av spelsituationerna i ett första skede och sedan genom ett påföljande stimulated recall-samtal där den inspelade spelsituationen diskuterades tillsammans med barnen. Data har sedan analyserats med en interaktionsanalytisk metod som undersöker hur barnen använder verbal och ickeverbal kommunikation i samspel med varandra, kontexter och teknologier för att lösa olika typer av uppgifter i spelen.Studien leder till slutsatsen att olika former av samspel äger rum mellan spelare och åskådare, man skapar gemensamt strategier för problemlösning.