This thesis includes a mechanical engineering design work performed incollaboration between ÅF and Halmstad University. The work is done by FredyOlsson?s methods of Principle- and Primary Construction and David Ullman?stheories of Design for Assembly.The group was commissioned by ÅF to produce a concept to narrow down theassembly time of today?s luggage doors by reducing the numbers of adjustmentoptions. They also wanted it to be easier to mount the assembly by making itpossible to adjust the door in a closed position. Today luggage door takes, with its10 adjustment possibilities, around 4 hours each to assemble and ÅF wanted anassembly time around 10 minutes per door.Initially a preliminary study was made where the group began reviewing today'sconstruction and mounting of rails and doors on buses.

The healing process of human bone can be aided by the presence of differentmaterials. A material that is transformed into bone when in contact with bone iscalled a boneconductive material. By transforming into bone the material reduces thetime that it takes to heal a fracture. This report is a study of existing boneconductivematerials on the market to see if there is a material available that would be suitable totest on larger fractures. The wanted application is to be able to heal fractures up to50 mm which is a fracture too big for the body to heal on its own.The healing process of human bone can be aided by the presence of differentmaterials.

The aim of this study is to find information about what to do when riding arena footings are worn-out. Especially, the surface layer of riding arena footings is very interesting because of its importance of giving grip in every step for the horse, as well as shock ab-sorption. Generally, surface layers are containing several different parts in order to achieve desirable properties. These different parts can consist of organic material or in-organic material (mostly gravel). Gravel and many other materials in the top-layer are environmental friendly, and therefore, easy to get rid of.

I uppsatsen sta?lls fra?gan hur mycket material som kra?vs fo?r en god natts so?mn. Projektet har utga?ngspunkten i ha?llbar utveckling med fokus pa? material, a?mnesstudier go?rs dels i ha?llbar utveckling men ocksa? i ergonomi och sa?ngen som fenomen. Metoder som anva?nds i projektet a?r intervjuer, marknadsunderso?kning, litteratur och a?mnesso?kning.

This essay studies the funnel-beaker ceramic in connection with the megalith graves in South Scandinavia. In my work I have described the nature of ceramics and looked on the crockery types and ornamentation and then discussed the use of the material in a ritual perspective. In the first part I have focused on the critical aspects you have to think about when you do a study like this one. In the second part of this essay I have done a case study, with the ceramic material, in three passages graves in the area of Falbygden, Western Sweden and studied the ceramic material and the nature of it in South Scandinavia as well. Then in the third I discussed the potential use, there is two, of the ceramic material in general of South Scandinavia and looked at it in a ritual perspective..

Ett undersöknings- och utvecklingsarbete för att lösa ett problem med att dränkbara pumpar i ett vattenavrinningssystem gick sönder med perioder på två år i genomsnitt, utfördes i samarbete med Cementa AB i Skövde. Orsak till pumpars haveri söktes och fanns vara bristande rutiner och kunskap om det underhåll pumparna krävde. För att lösa detta problem utvecklades riktlinjer för nyinköp av torruppställda pumpar för att möjliggöra kontinuerligt underhåll. Då möjligheter för placering av torruppställd pump saknades utvecklades ett pumpfundament för placering av torruppställd pump. Krav för utvecklingsarbetet togs fram i samarbete med Cementas underhållsavdelning och teoretisk dimensionering av dränkbara länspumpars dåvarande volymflödeskapacitet utfördes.

Periods of hypoxia are a recurring issue in Brunnsviken. Main factors that trigger hypoxia in Brunnsviken are eutrophication  due to anthropogenic emission of nutrients, stratification in the water column due to salinity and temperature differences  that prevents mixing and a sill inlet that prevents water exchange. As an attempt to improve the oxygen levels, bottom water is pumped from Brunnsviken causing aerated surface water to flow back into the basin.  The objective of this Master?s thesis was to study the change in dissolved oxygen levels due to pumping.

The purpose of this work is to investigate how 4-5 year olds perceptions of materials and material properties can be developed through an educational activity. The study is based on two interviews with eight children in that age category. The interviews were conducted before and after an activity where the children were first introduced to the subject by the tale of The three little pigs (Harris, 2009) and then given the opportunity to explore various materials related to the book. The kids got to experiment and explore how water affected materials and to compare different materials properties. The children were also attracted to build and create the material that was offered during the activity.

SAMMAMFATTNINGBakgrund: Reaktiv hyperemi definieras som ett övergående ökat blodflöde över det normala efter en tids ischemi. Det kan registreras med laserdopplerteknik. Att registrera reaktiv hyperemi är ett sätt att värdera mikrocirkulationen. Det finns många flödesvariabler att studera varav tid till maxflöde efter ocklusion är en. Det har gjorts studier som undersöker om det finns ett samband mellan reaktiv hyperemi och fysisk aktivitet/syreupptagningsförmåga.

Future emission legislation puts great emphasis on increasing the efficiency of the engine, thereby reducing fuel consumption. The tribological contact between cylinder liner and piston ring is where an great amount of energy is lost due to friction, and by reducing these losses an reduction in fuel consumption can be achieved.The aim of this thesis was to evaluate the tested piston ring coatings against a plasma sprayed cylinder liner and rank these combinations of materials for friction and wear resistance. The coatings that were tested was Cr + Al2O3, (Al,Cr)N, two types of CrN and WC / C.The experimental tests were performed with a so-called pin-plate, where used oil with addition of an acidic mixture of sulfuric and nitric acid to mimic the acidic condensate formed when exhausts recirculate, were added with a continuous flow. The results were then analyzed by weighing, studies by optical microscopy and scanning electron microscopy (SEM) and profile measurements.The results from each material combination were that the plasma coated cylinder liner wears too aggressively in order to yield a ranking of the piston ring coatings based on the parameters of friction and wear resistance. It is therefore proposed that an alternative coating on the cylinder liner should be developed, lacking the large abrasive wear on piston rings and that can withstand the corrosive environment resulting in engines equipped with EGR.

The  change that has occurred during the past few decades concerning the development of electronic records, information technology and the constantly increasing quantity of information, have confronted the archival discipline with new challenges. In the digital world, the concept of ?record? has changed from representing something lasting and physical to something much more abstract and transient. The way to approach archival description has also changed, from focusing on the static preservation of archival records, to documenting the transactions of organisations, and to clarify operational processes. The discussion about the general purpose of the archival discipline, and its place in a changing world, has led to a new approach to archival description.

The communicator has a professional role which is relatively unspecified and hard to define. To work with communication can mean several different tasks, who also might vary between different types of organizations. The purpose with our study is to clarify the professional title communicator and its meaning. By applying a power perspective on the communicators experienced professional role in meaning to find out who has the power over the communication.     Our study is made of qualitative interviews with four professional communicators working in private organizations. We have used semi structured interviews in our study which means that we before we went through with the interviews defined themes which the interviews were built upon.

Detta examensarbete visar resultatet av en undersökning om hur språklärare i engelska, franska och tyska på gymnasieskolan använder sig av autentiskt material i undervisningen och hur de tror att detta påverkar eleverna.En kvalitativ forskningsmetod har använts och därefter har resultaten analyserats med ad hoc-metoden.Resultaten visade att nästan samtliga lärare blandade läroböcker och autentiskt material i sin undervisning för att ge variation. Den främsta anledningen till detta var att lärarna upplever att elevernas motivation ökar dåundervisningen varieras och om eleverna kan se en viss verklighetsanknytning. Vissa skillnader mellan språken påvisades, då engelsklärarna i större grad uppgav att de använde autentiskt material i undervisningen. Lärare ityska och franska menade oftare att brist på material och elevernas kunskapsnivå förhindrade arbetet med autentiskt material. Lärarna påpekade även att kursplanen inte hade någon påverkan gällande materialet, utan attdet var varje lärares beslut att ta..

A distributed hydrological rainfall-runoff model has been developed using a GIS integrated with a dynamic programming module (PCRaster). The model has been developed within the framework of the EU-project TWINBAS at IVL Swedish Environmental Research Institute, and is intended for use in WATSHMAN ? a tool for watershed management developed at IVL. The model simulates runoff from a catchment based on daily mean values of temperature and precipitation. The GIS input data consist of maps with soil type, land-use, lakes, rivers and a digital elevation model.

Syftet med denna undersökning var att utforska den lärandes perspektiv genom att lära oss spela ett nytt instrument. Genom att försätta oss i en sådan situation och sedan granska våra egna läroprocesser hoppades vi kunna bemöta våra framtida elever med djupare förståelse. Vi ville på detta sätt försöka synliggöra faktorer som påverkar vårt lärande och bilda oss en uppfattning om hur vi påverkas av dessa.Undersökningen utfördes med oss själva som studieobjekt där vi under hela processen noggrant förde dagbok över våra upplevelser, både skriftligt och med ljudande inspelningar. Inspelningarna bifogas som en bidragande gestaltning till det avsnitt som kallas Processen. I Processen förekommer diskuterande tolkningar som fullföljs i Epilogen.Vår studie visar att det är svårt att till fullo sätta sig in i en nybörjares roll.