"In the eye of the beholder- A didactic study of Swedish teachers and textbooks in history?s reasoning about nine eleven and its aftermath" by Emmy Johansson and Emma Svanström aims to show which picture both teachers and textbooks on elementary school and upper secondary school want to mediate on the subject. The study also strives to compare the teachers view with the textbooks.To achieve these goals the study uses materials from eight interviews and fifteen textbooks. The methods are a combination of interviews and textual analysis inspired by the scientist Elizabeth D. Herman.

Norconsult AB has developed a solarhousing concept, a house designed for the warm climate in the Middle East andwith large quantities of solar panels installed. The cooling system for the house was designed in an earlier report, the purpose of this thesis is to investigate the possibility of short and long term storage of thermal energy via an underground energy storage volume.Two different designs of the storage and three different filling materials have been integrated into a model to simulate different cases. The first design consisted of pipes installed in the ground, without insulation. The second design consisted of an insulated concrete box installed to prevent thermal energy from the surrounding soil to flow towards the lower temperature regions within the storage. The three different filling materials were dry saudi sand, water saturated saudi sand and the filling material used by the client for energy storage in Sweden.The results from the simulations show that neither of the designs, regardless of the filling material, managed to extract enough thermal energy from the house to the ground to uphold the demands of indoor climate.

I want to, but how? My work is a research of the creative process. I have asked myself how ideas take form and how materials can become bearers of ideas. The work has been treated as an action rather than an object. The result shows my research and my interpretation: the process and result are the same..

Sweden's drinking water quality is considered to be high partly due to a high quality of the raw water and a well developed sewage infrastructure. Despite this, there is water contamination that could be prevented by installation of a sophisticated early warning system. Some of the major players in the production of drinking water have already invested in different types of early warning systems to ensure drinking water of high quality. There are various forms of early warning systems where automatic monitoring of E. Coli is an interesting alternative.

This essay includes the planning and designing of a house as well as writing a rapport about howto increase fire safety in small buildings.More than 6000 homes burn in Sweden every year (Brandskyddsföreningen, 2012c). Thedevastation and the costs are usually very high. This report examines possible measures to reduceboth personal injuries and economic losses resulting from house fires in small buildings.Swedishbuilding regulationsplay a major role when it comes to constructional fire safety. However therequirements inSwedish building regulations are very low for small buildings and this is anargument for raising the requirements.The report shows and describes possible methods to build safer with regards to fire in terms ofmaterials and different building structures. Major focus has been on fire cells but other solutionsare also examined and described.

Since the late 1900s, the consultancy has taken a firm grip on the labor market. The consultants' work profile has been secured through agreements such as guaranteed wages. The collective has been shattered as well as higher demands are required of the employee. This results in higher work demands, workload, a reduced staffing resource and hopeless wages which can lead to health problems and depressions. Previous research shows that consultants find it stressful to be associated with two companies and some clients can also point out consultant through different attributes.

The purpose of this study was to examine how some children with reading problems experience and use libraries. The main problem was: How do dyslectic children experience and use libraries and how do they handle their reading difficulties when using libraries? The questions at issue were: 1. Do children with reading problems use libraries, and if so how? - in which purposes do they use libraries? - which materials and services do they use? - why dont some children use libraries? 2.

This paper is the result of an osteological study of the skeletal remains uncovered during an archaeological excavation of the medieval cemetery in Norra Nöbbelöv. The purpose of the study is to compare the material from the rural site (Norra Nöbbelöv) with materials excavated from the old medieval graveyards in the city of Lund. The aim is to try and shedsome light on the question of whether there is any difference in the occurrence and frequency of fractures and osteoarthritis in the materials compared. The first section of the paper consists of a short historical background of Norra Nöbbelöv and Lund, a chapter on ethics, general results of the analysis and the methods used. Thissection was co-authored by Ulla Zagal-Mach and Åsa Strandh.

The present project was initiated with the aim to create pattern modules for use in public environments. My intention was to let the properties, of the specific materials used, have a marked influence on the realisation of the final form. I also wanted to find a material, which is suitable from the perspective of sustainabilityand possibilities to create modules from it. The work was initiated with a study of some candidate materials and many sketches before I finally made my choice. My decision was clear after a visit to the company Glasfabriken inKalmar.

This report describes the master thesis project ?Weight Optimization of a Composite Chassis for a Multimodal Lightweight Vehicle? which is a part of the Master program in Naval Architecture and a part of a research project at the Centre for Naval Architecture, KTH. Demands on smart and energy efficient transport solutions are continuously increasing. In the Stockholm region the citizens are expected to increase with 25% and the road vehicles with 80% until 2030, putting high demands on the traffic system. Using a small multimodal vehicle deals with this problem and uses both the land and waterways for transportation.

Introduktion/Syfte. Intresset för och användandet av adhesiv cementering av keramiska material har ökat under de senaste åren. Detta har lett till ett ökat intresse att kunna jämföra olika studiers resultat med varandra och därmed har även intresset för att utveckla internationella standarder inom forskning ökat. Syftet med denna studie var att jämföra den adhesiva bindningsstyrkan mellan ett laboratorieframställt material innehållande kvartsmjölsförstärkt epoxyresin (Sipoxy), med emalj och dentin. Detta för att avgöra om Sipoxy kan användas som en standardiserad ersättning istället för tänder i in vitro studier som utvärderar bondade keramiska rekonstruktioner. Material & metod.

AbstractThe market?s demand to purchase more cost effective products is continuously increasing. The producers are forced to become more efficient and flexible with resources to produce high quality products at a low cost in order to maintain or increase market shares. With this in mind Isaberg Rapid AB is requesting a project to increase efficiency in the assembly cell of hammertackers. The company has found in Kaizen-events that there is a potential of efficiency improvements in the assembly group that has not been achieved.The objective with this paper is to identify the major factors that influence the efficiency in the assembly cell for hammertackers.

SammanfattningSyfte och frågeställningar. Syftet med denna studie var att på äldre personer studera olika fysiologiska parametrar före och efter en period på åtta veckor med styrketräning som utförs tre gånger i veckan. Frågeställningarna var: Hur påverkas statisk och dynamisk maximal styrka i främre lårmuskulaturen av styrketräning? Är det någon skillnad i resultat mellan koncentrisk och excentrisk styrka i lårmuskulaturen före och efter styrketräningsperioden? Är det någon skillnad i förändring mellan benstyrka uppmätt med isokinetisk teknik jämfört med uthållighetsstyrka och ett kort funktionellt benstyrketest? Hur påverkas maximal syreupptagningsförmåga registrerad via submaximalt cykeltest respektive vid pyramidtestet av träningsperioden?Metod. I studien deltog 20 generellt ej påtagligt aktiva män och kvinnor i åldrarna 66-79 år.

Powder Metal (PM) gears are machine element components which operate under the same principle as conventional gears, but, due to their intrinsic material characteristic need to be designed slightly different, and its manufacturing process offers advantages previously unobtainable by conventional steel gear manufacturing methods. The use of PM in similar applications, such as synchronous hubs, makes them a suitable candidate for production in such material. The current master thesis work focuses on gear design using PM by utilizing finite element method (FEM) to reduce weight and inertia taking into account root bending strength and tooth deflection.First a topological optimization is used to determine feasible candidates for different web designs which have as objective to reduce volume, similar topologies were shown during different loading conditions; and hence, this topology was chosen as a suitable candidate. A shape optimization of the topological candidate was performed having as state variables root bending strength, independent for compressive and tensile side of the tooth loading; and tooth deflection, which in concept can be correlated to static transmission error (TE).Another aspect in this thesis analysed is the possibility to incorporate non-trochoid root geometry, a trochoid root is always present when machining with a hob, into the gear root and hence reduce the stress concentration here. Due to the use of PM, a non-symmetric optimized root can be achieved and hence be optimizing compression and tension.Results showed significantly lower inertia, for example certain results showed 40% reduced when compared to solid gear, with adverse effects as increase in tooth deformation and increase in maximum principal stress.

The aim of the study was to install a biogas system consisting of three tubular polyethylene biogas digesters at a rural household in Malawi and to evaluate the constructed biogas system with regards to relevant system parameters. The purpose was to evaluate if the technology is a possible solution to reduce deforestation and support Malawi in climate change mitigation and adaptation. The study was carried out in the southern part of Malawi in cooperation with the University of Malawi. Locally available materials were used to construct and install the system. Three different feed materials, cow, goat and a mix of cow and goat manure, were used in order to determine which one was best suited to utilise as a digester substrate. After the installation, measurements of temperature, pH, biogas production, biogas composition and system functionality were made. The results of the study show that a biogas system with tubular polyethylene biogas digesters can be successfully installed at a rural household and that the most suitable feed material is a mix of cow and goat manure.