A substation must be properly protected against lightning and other external effects to the equipment in the station or staff, for that we use relay protection. They should also protect against internal errors which may occur as ground faults. There are different types of protection relays, but most common are overcurrent-, distance-, residual current- and differential protection.The purpose of this thesis was to deepen our knowledge of relay protection and to use the theoretical knowledge we got from the university studies in the work process. In the process we discovered which parameters were the most essential and calculated these for all relay protections on the substation. We also carry out a comparison between two brands of relay protection, ABB and Alstom.During our work we will test and simulate the over-current relays in a program called NEPLAN, the program will also calculate the fault currents.

The purpose of this thesis is to examine and analyze the communication effects from the campaign SAS EuroBonus American Express Card. Our aim is to measure the advertising effectiveness of the campaign.To gather primary data we have conducted a quantitative survey at Arlanda Airport, where the campaign is mainly located. The survey included a total of 253 respondents representing the population at Arlanda Airport.Our conclusion is that there is an awareness of the presence of American Express at Arlanda. The company is clearly dominating among its competitors regarding visibility at the airport. Despite this, only a moderate degree of the travelers recognize the pictures from the campaign.

An increase interest of new methods and tools has begun to grow in the real estate business, this new trend causes an increase in new programs that aim to simplify processes of energy-efficiency and environmental issues.After consulting with Björn Alsmark from Bjerking AB, an architect and engineering company, we made a decision that the Degree Project is going to examine the program IES (Integrated Environmental Solutions) with some integrations from Revit Architecture application.To be able to examine IES, we got access to a completed project from Bjerking. The project is a nursery school in Uppsala. An application has been handed in from Bjerking to make this project to a Green Building-certificated project. According to Bjerking own calculations (with the energy-calculation program Enorm), the consumption of energy of the nursery school is 48 percent lesser than required by BBR.An evaluation of IES and Enorm has been made with an aim to compare these two programs and find out if IES is an appropriate program to replace Enorm. Does Enorm or IES come up to BBR´s recommendations?The Degree Project cover 15 ECT, that required several adjusting and delimitations, and the study sketch ended with a literature study.After finishing the study sketch the modeling of the nursery school began.

The study aims to investigate the impact of industrialised homebuilding in the creation of the aestheticproperties of the dwelling architecture.The concepts of industrialised homebuilding and the aesthetic properties of the dwelling architecture aredefined by previously developed models. In these models, industrialised homebuilding is described byeight characteristic areas. The aesthetic properties of the dwelling architecture are described by sevenaesthetic qualities.The study was conducted as a qualitative study, and in-depth interviews were conducted. The companyJM AB is the analysed unit that the author of this report has chosen to study. JM employees and by JMhiredarchitects were interviewed.The report concludes that characteristic area planning and control of processes are considered to havepositive impact on the aesthetic qualities if the process is designed in such a way that the creations ofthese are admitted.

SIDA?s relief work in Bosnia aims at making the country ready for a membership in the EU where the main focus lies in the creation of a sustainable state as well as liberalizing the market to create an increased economic cooperation between Bosnia and the rest of Europe. These ambitions are closely related to the neo-liberal theory of state building which aims at creating democratic societies in line with the western democracy model, with a liberal economy constituting its base. Despite generous financial aid, the democratic and economic development in Bosnia is moving very slowly and the ethnical tensions seem to grow despite international involvement in the country. The purpose of this study is to evaluate SIDA?s present relief work in Bosnia out of a peace perspective.

To be able to handle tomorrows need for limited energy consumption we need to reduce our use of energy. The building sector stands for around 40 % of all energy consumption in the society. The government has put up a goal to reduce the energy consumption in our buildings with 20 % by year 2020 and 50 % by year 2050 compared with year 1995. To be able to do reach that goal we need a more energy efficient building stock.The main part of the energy used in our buildings is used for space heating. By installing ventilation systems with heat recovery on the exhaust air it is possible to use the heat-energy in the exhaust air to warm up the incoming air.

Denna studie syftar till att se på hur barn tar sig an konstruktionsritningar i jämförelse med fritt byggande i en lekfull gruppmiljö. Tidigare forskning visar skillnad mellan mängden män och kvinnor i tekniska yrken och även män och kvinnors inställning till de tekniska ämnena. Vissa forskare visar också på åldersskillnader mellan hur barn lär sig tekniska ämnen. Tar fyra- och femåringar frivilligt sig an konstruktionsritningar, följer dem och färdigställer de konstruktionen? Studien har särskilt tittat på om det fanns skillnader mellan flickorna och pojkarna när de byggde? Hur påverkar barnens eget intresse hur de bygger? Om barn, fyra och fem år gamla kan följa bygginstruktioner?Resultatet av denna studie, i viss mån, stödjer tidigare forskning om att det finns en genus aspekt redan i förskoleåldern, pojkarna var mer försekomna och hade lättare för att följa lego instruktioner än flickorna, men frågan kvarstår; varför finns denna skillnad? Förutom genusaspekten fanns det också ett tydligt resultat som visade på skillnad i byggkunskap mellan fyraåringar och femåringar.

The purpose with this project is to explore and verify three renovating systems for Miljonprogrammet (common expression forbuildings constructed during the years 1965-1975 when over a million houses where built in Sweden) to take measure to thelargely transmission losses of these buildings. Many of the buildings from this period have similar constructions and thereforethe same techniques can be used to renovate several of them. This project only considers the climate scale, although thereare many more factors to concern for to efficient the buildings of Miljonprogrammet.This thesis presents examples of renovations carried out using two of the three renovation systems.The essay presents a reference house of choice on which we apply the three systems and calculate the new U-values,consumption of energy and the investment costs. The new U-values the building is given is matched to the values ofrecommendation for passive houses. Our reference house is a two story apartment building, located in the village ofLammhult, with brick facades at the ends and plaster at the long sides.

During the second part of the 20th Century celebrities became more commonly used for commercial purposes as they could enhance purchase intentions, word-of-mouth- intentions and change attitudes towards brands and products. Over the last few years blogs and bloggers have become more and more used for product placing and the bloggers? power over consumers? behaviour has grown rapidly. The aim of this study is to compare a celebrity?s and a blogger?s impact on consumer behaviour and try to understand the underlying reasons why they do have such power over their audiences.

Konceptet Building Information Modeling, tillsammans med den snabba IT-utvecklingen ger företag i bygg- och fastighetssektorn möjlighet att utveckla och effektivisera sin verksamhet. Vi tror att det finns utrymme för fastighetsbolag att förbättra och effektivisera sin verksamhet. Ett sätt att utvecklas och nyttja nyare teknologi ser vi i digitalisering av fastigheter där all relevant information ska finns samlad, tillgänglig och ständigt uppdaterad..

Baron Carl Adam von Nolcken was born in 1811. In 1834 he took over Jordberga Estate in the South of Skåne from his father. The estate remained in his possession until his death in 1857. von Nolcken was interested in agriculture and horticulture from an early age and attended the newly started Institute of Agriculture, Degeberg in Västergötland in the early 1830:s. At Degeberg, von Nolcken learnt all about modern farming methods, which he put into practice on his own estate. von Nolcken was one of the persons who during the mid 19th century worked intensely to develop horticulture and the art of gardening in Skåne.

We follow Torsten Brodén through his writings on Russell's Paradox. By comparing his work to that of his fellow colleagues at the time, we acquire an understanding of the context in which he wrote. Brodén is somewhat unique among contemporary mathematicans in his philosophical approach and thorough treatment of the most fundamental logical building blocks of set theory. With this mindset, he considers Russell's Paradox from a new point of view and believes himself to have successfully found a way to rid the world of it..

Several cities have implemented various projects to improve traffic safety in city centers.During 1970s and 1980s the city centers changed as the suburbs grew and large shopping centers were located outside the center. At the same time, several projects were initiated with construction of pedestrian streets and restriction of traffic in the center. In year 1994,shared-used areas were introduced in Sweden and these areas are often used in center environments.In Sweden, municipalities are responsible for integrating security in public places and in comprehensive plans and detailed development plans. The National Board of Housing,Building and Planning is the authority for administrating planning issues and develop general guidance about planning. Traffic is one of their key issues, although today there are no concrete guidelines from the National Board of Housing, Building and Planningfor the design of traffic safety in city centers.Traffic safety in city centers affects many people because the city center is a public place.It is therefore important that there are current guidelines available that are helpful for changes and improvements in traffic safety in the city center.The purpose of this report is to formulate guidelines for planning city centers from a traffic safety perspective.

Finnhamn is a group of islands that are located in the middle north part of Stockholm?s archipelagos. On the main island Stora Jolpan there is a camp called Sommargården, which consists of eleven different buildings in various sizes. The assignment given by the Archipelago foundation (Skärgårdsstiftelsen) is to analyze if it?s benefited to replace Sommargårdens current heating system that consists of electricity radiators, with a more energy efficient heating system. This research is done with help of the literature review and a visit to Finnhamn in order to map Sommargården?s current state and its energy usage.

The aim of this work is to give a broader and more nuanced picture of the use of locks and keys during the Iron Age, in particular the late Iron Age, in the Lake Mälaren region. This has been done by comparing two buildings: the hall on Helgö and the living quarters in the garrison on Birka. Here we can see two very different areas where locks and keys were important parts of the daily life. The study also includes a typology of padlocks based on the findings from the same places as the building study and their surroundings..