This report is a study in voltagelevel in connection with regeneration of brake energy from the tramtype M31 in Gothenburg.In the act of braking, the tram M31 uses electrical braking where the electrical motors generates energy and if possible send it back to the overheadline, where other trams in the nearby can use this regenerated energy for its own driving force. In cases where no other energyconsumers are located in the same section, there is a resistance witch task is to convert this energy into heat. The regulation of this resistance appears to cause an increase in the voltagelevel into far too high levels.Investigations of the trams regulationequipment and its construction have been done. Further have measurements on the overheadline been performed in order to map the voltagevariations during a longer period of time.The result have been showing that the voltagelevel during regeneration often is as high as 880V-920V, more extreme values have not been observed in a large scale. The values are especially high compared to the nominal voltagelevel.

Målet med examensarbetet var att undersöka om det var möjligt att genomett kompatibilitetsbibliotek se till att Eneas realtidsoperativsystem OSEckkan uppfylla kraven i operativsystemsstandarden OSEK.OSEck visade sig tillhandahålla all efterfrågad funktionalitet och ett kompatibilitetsbiblioteksom innehöll OSEK?s API kunde därmed implementeras.Ett verktyg togs fram för att utifrån en fil, innehållandes objekt beskrivna iOSEK?s konfigurationsspråk OIL, plocka ut den information som behövdesf¨or att konfigurera både OSEck och OSEK.Slutsatsen av examensarbetet blev att det gick att göra OSEck OSEKkompatibeltgenom ett yttre lager och att inga ändringar i OSEck?s kärnavar nödvändiga. Givetvis påverkar lagret operativsystemets prestanda negativtmen det får ändå anses att dess prestanda fortfarande är så pass braatt en integration i OSEck?s kärna ej behövs.För att ett operativsystem ska kunna göras OSEK-kompatibelt måste detha prioritetsbaserad schemaläggning samt att task som blir avbrutna hamnarförst i sin prioritetskö. Dessutom måste det vara möjligt att exekverakod precis innan ett task börjar köra för första gången eftersom det skafinnas stöd för en PreTaskHook..

In 2002 the Norrköping municipality decided to establish a number of supportive teams and one teaching group with the purpose of developing alternative supporting efforts for children with social problems. This development work came to be called BUSS. BUSS today consists of four local teams, team Ett, team Norra, team Torpet and the Mathson School.The teams? focus, beyond the commission from Norrköping municipality, is to reduce the number of children being placed outside their own homes, get them to function in school, develop their self-confidence and social competence. Also their task is to support parents and take up a functional spare time for the children.

Målet med examensarbetet var att undersöka om det var möjligt att genomett kompatibilitetsbibliotek se till att Eneas realtidsoperativsystem OSEckkan uppfylla kraven i operativsystemsstandarden OSEK.OSEck visade sig tillhandahålla all efterfrågad funktionalitet och ett kompatibilitetsbiblioteksom innehöll OSEK?s API kunde därmed implementeras.Ett verktyg togs fram för att utifrån en fil, innehållandes objekt beskrivna iOSEK?s konfigurationsspråk OIL, plocka ut den information som behövdesf¨or att konfigurera både OSEck och OSEK.Slutsatsen av examensarbetet blev att det gick att göra OSEck OSEKkompatibeltgenom ett yttre lager och att inga ändringar i OSEck?s kärnavar nödvändiga. Givetvis påverkar lagret operativsystemets prestanda negativtmen det får ändå anses att dess prestanda fortfarande är så pass braatt en integration i OSEck?s kärna ej behövs.För att ett operativsystem ska kunna göras OSEK-kompatibelt måste detha prioritetsbaserad schemaläggning samt att task som blir avbrutna hamnarförst i sin prioritetskö. Dessutom måste det vara möjligt att exekverakod precis innan ett task börjar köra för första gången eftersom det skafinnas stöd för en PreTaskHook..

Sudoku solvers are a widely researched topic among mathematicians and computer scientists. This report investigates the differences in execution time and time complexity between backtracking and human strategies for classes with 17-21 clues. Backtracking is compared to our implementation of human strategies with test data that contains 99 Sudoku puzzles for each class. The study shows that the execution time and time complexity is improved for human strategies compared to backtracking for each class. The conclusion shows that it is always favorable to implement the human strategies investigated in the report. .

The study tries to increase the understanding of the phenomenon known as the Big bath, on the question whether the market accepts Big bath accounting principle or not. Big bath is an accounting theory meaning that a company is likely to increase its impairment in a specific year. This could be as a reaction on a change in the leadership, a depreciation of the result or maybe an external decrease in demand. Through a quantitative survey of the market it is examining whether the companies themselves are inclined to use the procedure and if the stock market accepts it. The study concludes that Big bath similar procedures are a fairly common accounting practice and that the stock market does not seem to mind. .

Vellinge är både centralorten i Vellinge kommun och en bostadsförort till Malmö. Orten består till stor del av villabebyggelse. Vellinges expansion kan härledas till två viktiga händelser där den första var järnvägen drogs in till Vellinge. Järnvägen skapade nya förutsättningar för industrier, handel och framförallt nya kommunikationer. Den andra händelsen var bilens starka intåg under 50-talet. Bilen skapade möjligheten att röra sig över längre sträckor vilket också resulterade i att utbyggnaden av Vellinge bredde ut sig över större ytor. Utbredningen nådde sin topp under 70-talet då Vellinge fördubblades i storlek. I centrum genomfördes under samma tid en modernisering där nya centrumbyggnader och stora parkeringsytor anlades.

In a web environment the library and the librarian continue to function in their role as information provider even when the physical library is closed. Research question is to describe how and in what extent the public libraries websites are integrated in their daily activity and what the causes are for that. The empirical material consists of a survey of number of public libraries websites and qualitative interviews with responsible librarians. I have delimited the study by only investigating the websites of Gothenburg public libraries. In my survey of the websites I have studied four spheres; Services, Contact, Structure and General viewpoints.

The main purpose of this study is to analyze texts written by pupils during the national test in the subject Swedish for grade 9 in order to identify and illustrate how they have met the instructions for the writing task including genre. The texts have been analyzed using Palmér & Östlund-Stjärnegårdh?s (2005) model for student text analysis. This model has been supplemented by studying word and sentence length, as well as indexes for level of readability (LIX) and word variation (OVIX) in order to illustrate possible differences in a gender perspective. The results of this study are in line with previous research, as the girls? texts are longer and more descriptive, while the boys? texts are shorter and show a wider range of word variation.

In this essay we discuss the broad area of website usability from a tourism perspective. Our goal was to investigate the usability in smaller and bigger tourism websites. We have declared what website usability means and the importance of involving the users when designing a user interface. In a pilot study, we conducted three interviews with people who work with usability and then used the information we got to form questions to use in a focus group interview. In this focus group, we asked three people to assess two Swedish tourism websites, one bigger and one smaller, to find out if they were considered usable and if there was any difference in usability depending on the size of the site.

The presidency of the European Union (EU) is one of the most important institutional actors for the improvement of democracy and equality between the member states. To hold a presidency is a big task and for many countries a tough challenge. What makes a presidency successful? The purpose of the thesis is to examine this question using Ole Elgströms? ?four properties for defining a successful presidency? as the theoretical background. This thesis will employ a comparative framework of four countries, using size and age (age understood as ?time being an EU Member State?) as the defining factors.

Syftet med studien var att undersöka hur individer med olika roller inom en fotbollsförening för unga talanger upplever motivationsklimat. För att skapa förståelse för begreppet motivation i en fotbollsförening har följande frågeställningar använts; hur upplevs klimatet i verksamheten, vad upplevs vara tillfredsställande prestationer samt hur upplevs att tillfredsställande prestationer uppnås? I studien deltog tio manliga respondenter (m=36,4 år, Sd=16,9) med olika roller kopplade till idrottsverksamhetens talanglag. Respondenterna grupperades enligt följande: spelarrepresentanter, ledarrepresentanter och föreningsrepresentanter. Intervjuer genomfördes utifrån en semistrukturerad intervjuguide baserad på studiens syfte.

During the last years the need for real-time database services has increased due to the growing number of data-intensive applications needing to enforce real-time constraints. The COMponent-based Embedded real-Time database (COMET) is a real-time database developed to meet these demands. COMET is developed using the AspeCtual COmponent-based Real-time system Development (ACCORD) design method, and consists of a number of components and aspects, which can be composed into a number of different configurations depending on system demands, e.g., Quality of Service (QoS) management can be used in unpredictable environments. In embedded systems with requirementson high up-time it may not be possible to temporarily shut down the system for reconfiguration. Instead it is desirable to enable dynamic reconfiguration of the system, exchanging components during run-time.

This report is a study in voltagelevel in connection with regeneration of brake energy from the tramtype M31 in Gothenburg.In the act of braking, the tram M31 uses electrical braking where the electrical motors generates energy and if possible send it back to the overheadline, where other trams in the nearby can use this regenerated energy for its own driving force. In cases where no other energyconsumers are located in the same section, there is a resistance witch task is to convert this energy into heat. The regulation of this resistance appears to cause an increase in the voltagelevel into far too high levels.Investigations of the trams regulationequipment and its construction have been done. Further have measurements on the overheadline been performed in order to map the voltagevariations during a longer period of time.The result have been showing that the voltagelevel during regeneration often is as high as 880V-920V, more extreme values have not been observed in a large scale. The values are especially high compared to the nominal voltagelevel.

I have in this thesis looked at the reasons for why boys, in upper school classes, read so little fiction. Several surveys show that boys in their teenage years stop reading fiction. If they read fiction it is only as a school assignment and not as leisure. There has been research done in boys attitude towards literature, but there hasn?t been any research done asking them about why they don?t read fictionI have interviewed a group of boys about their reasons, and attitude, for why they don?t choose to read fiction on their spare time after school.