The theoretical background in this essay made clear that the students? knowledge about physics improve, and they express a more positive attitude towards physics as a subject, when they have access to a more laboratory-based learning style. The aim of this study is to research how the placement of the lab relative to the lecture affects the students? experiences and level of knowledge. The study involved students in year eight and was carried out during four weeks.

Projektbeskrivning: Bakgrund: Vid valsning av tunna band med hög hållfasthet används reversibla mångvalsarsverk. Kundkraven är höga vad gäller bandens planhet. Planheten kan styras genom de planhetsställdon som valsverket är utrustat med. Syfte: Förvärva kunskap om hur de olika ställdonen inverkar på planheten. Varje enskilt ställdons inverkan på planheten kan undersökas genom att genomföra en föreskriven förändring av ställdonets läge och därefter utvärdera planhetsförändringen som uppkom.

Abstract The purpose of this degree project is to examine what impact working with physical objects has on children?s learning process concerning addition. We want to explore what addition strategies can be exercised using the game ?Twice as much?. We have observed children in school year 1.

The purpose of this study was to gain greater knowledge of how preschool teachers and children using an experimental- and activity box in biology. To find this out, I have used the participant observation method and semi-structured interviews since my study is qualitative. The result of the work led to a greater understanding of the biologybox. It was shown that preschool teachers' involvement is very important for children and that the biologybox contained good and inspiring materials. Although educators desired that there was more material to choose from as well as the usage time of the biologybox should be longer than 3 weeks..

Rapporten innefattar en jämförande studie mellan olika typer av membran och beläggningar.Främst sker en jämförelse mellan materialens förmåga att andas. Vattentäthet testas på nyamaterial och efter olika sorters nötning så som martindale, flexing och tvätt för att få en ökadförståelse för materialen. Verktyget som används i studien för att mätaånggenomsläppligheten är hudmodellen. Resultatet presenteras med ett Ret-värde vilket är enförkortning på Evaporative resistance of a textile. Metoden används för att på ett bra sättsimulera hur huden svettas.Projektet har utförts på Swerea IVF som är ett forskningsinstitut beläget i Mölndal.Hudmodellen är en av de senaste stora investeringarna på Swereas textil och plast avdelning.Resultatet av studien visar att laminat andas bättre än beläggningar, dock har bärarmaterialetstor inverkan på resultaten.

Detta examensarbete är utfört på Sandvik Materials Technology (SMT) i Sandviken. SMT har under ett antal år arbetat mot att infria deras två största kunders, Atlas Copco Secoroc och Sandvik Mining and Construction, önskemål om en leveransprecision på 95% och en ledtid på tre dagar för storvolymprodukter av bergborrstål. Idag är leveransprecisionen tillfredsställande medan ledtiden är fem dagar. Examensarbetets syfte är att analysera vad som krävs för att infria Atlas Copco Secoroc's och Sandvik Mining and Constructions önskemål om tre dagars ledtid för storvolymprodukter. Ledtidsreduceringen ska åstadkommas med nuvarande skiftform och utan att leveransprecisionen påverkas i negativ riktning.

The aim of this study is, from a norm-critical approach, to find, investigate and analyse human representation in the visual culture of one preschool in order to understand if the children enrolled are represented or not. The research questions are: In what ways is there imagery of human representations in images and materials designed for play? What skin-colors and origins are dominant in the data collected?We carried out a qualitative study in the form of visual ethnography. This method allowed us to use a combination of different data collection tools such as photography and ethnographic field notes to collect our data. The photographs we took of images and material used for play, was then analysed through semiotic picture analysis.

Due to recent legal enactments regarding carbon dioxide emissions, the car industry is facing higher demands. An effective way of reducing these emissions is to minimize the weight of the vehicle. This thesis constitutes a feasibility study on whether or not it is applicable for the car industry to utilize an inner floor structure comprising composite materials. The principal was the projectSåNätt, in which the main participant was Volvo Cars Corp. In consultation with a reference group, consisting of delegates from the industry and KTH, a specification of requirements was produced.

Projektbeskrivning: Bakgrund: Vid valsning av tunna band med hög hållfasthet används reversibla mångvalsarsverk. Kundkraven är höga vad gäller bandens planhet. Planheten kan styras genom de planhetsställdon som valsverket är utrustat med. Syfte: Förvärva kunskap om hur de olika ställdonen inverkar på planheten. Varje enskilt ställdons inverkan på planheten kan undersökas genom att genomföra en föreskriven förändring av ställdonets läge och därefter utvärdera planhetsförändringen som uppkom.

In this thesis, a transparent model of the human head has been constructed which was filled with a substance that represented the brain. This model was later crash tested. This was done in order to examine how a transparent model of the human head can be constructed to generate accurate data from crash tests. It was also done in order to examine how impacts on the front of the head can deform the rear of the brain. When a head is decelerating, the brain moves forward inside the skull and may hit the front of the skull.

To fulfill the climate target that EU and the Swedish government have decided to apply, it becomes increasingly important that the energy efficiency of existing buildings and making new buildings energy efficient as possible. Of Sweden?s total energy consumption in 2011 was 40% used by residential and service. Of the 40% of the energy consumption was 60% used for heating and domestic hot water. A report from year 2012 shows that one reason why the heating volume is so great could be due to underestimating on the energy consumption for the heating in the planning of the building.

This study focuses on the Nordic model of Extended Collective Licenses (ECL) and how this model can be used in the process of digitalising and publishing archival material such as photos, letters, maps or films. The question that this study aims to deal with is what advantages, and disadvantages, there are for archives and copyright holders when an ECL is being used. To help answering this question the ?theory of the knowledge commons? has been applied. The research question has been answered through a text analysis based on legal texts including Swedish law.

In this bachelor thesis the aim is to explore how university libraries and researchers function together. I will do this through interviews with phd students and examine how they reason on the use of libraries and other resources available in campus and witch other methods they use to gather information. The graduate students differ in where they are with their research process, but all of them work in the field of social sciences. To help me in my analysis I have adopted Wilsons model of information behaviour and modify this to better suit my purpose. My findings show that they mainly use the library to access materials and avoid use of the librarians, due to perception of low usefulness.

Thisis an experimental study of lipid residues within the field of laboratoryarcheology. Pottery was made in a time like manner and used to cook grain and Icelandmoss and exposed to an organized biodegradation experiment inside an incubatorfor later analyzes with the GC-MS-method. Tests were also taken from pottery,grain and Iceland moss that had not been exposed for a biodegrading attempt.The grain is a domesticated cereal and the Icelandic moss fungi-alga mix. Thetest results showed mostly saturated fatty acids, sterols and monoacylglycerolsof saturated fatty acids. Within the laboratory archeology, ergosterol has beensuggested as a possible biomarker for yeast and alcohol fermentation.

In this thesis, a transparent model of the human head has been constructed which was filled with a substance that represented the brain. This model was later crash tested. This was done in order to examine how a transparent model of the human head can be constructed to generate accurate data from crash tests. It was also done in order to examine how impacts on the front of the head can deform the rear of the brain. When a head is decelerating, the brain moves forward inside the skull and may hit the front of the skull.