This report summarize what have been done during the Master of Science Thesis that Klas Schjelderup has written for the company RANOTOR Utvecklings AB. The company is developing modern steam engines and this work should develop a machine to perform tests on a new type of piston seal that hopefully could be used in the future. The steam engines will be both volumetric and energy compact, around 1600hp/literof cylinder volume, and it will have a lot of practical applications.The new type of piston seal is hydrostatic lubricated which means that a fluid is separating two faces that normally is in contact. In this case pressurized water is used to separate the piston seal from the cylinder wall. RANOTOR have earlier formulated that at least the expander in the modern steam engine have to be oil-free, due to other components functionality in the closed water system.

Svenska Flygvapnet har under de senaste årtiondena lagt ned mycket resurser på att motverka den bistra haveristatistik som präglade 50 och 60 talen. Denna satsning har varit lyckosam och ökat flygsäkerheten. Detta har lett till inställningen att inget får hända och att flygsäkerheten prioriteras minst lika högt som verksamhetens mål.Flygvapnets huvuduppgift är att genomföra väpnad strid. Denna uppgifts natur medför att ett visst mått av risktagning är nödvändigt. Frågan är om ett alltför starkt flygsäkerhetsklimat med fokus på att regler är till för att följas, kan leda till att man inte är beredd att ta de risker som kan vara nödvändiga för att vara effektiv i strid.

The purpose of our study is to see how the interaction between the social services and police work when a child under 15 years is suspected of crimes.What happens to the child from an agency perspective? How is the experience for the child and how do they get their voices heard? How is the professional perspective for a child when a child is suspected of a crime? What do the various authorities for short-term and long-term measures for the child?We have chosen to do a qualitative study using semi-structured interviews. The study includes six interviews with two police officers, three field secretaries and a social worker in two different municipalities. A medium sized municipality, and a larger community.The people we interviewed think differently about collaboration. The municipality have different workforms.

 The aim of this essay is to examine if the Swedish Major labels are moving towards making their catalogue available on different platforms rather than their traditional distribution of music. The new technology has really stirred things up for the major labels and file-sharing has been a problem for a long time. The labels have a history of fighting new formats instead of embracing them and listen to what their consumers actually want. We have found that the majors now are in the leading edge of music distribution due to technology and that is a first. We have focused this essay on if the consumption of music has changed the distribution of it or the other way around and found that people have changed their ways of consuming music over the years and the labels have always been forced to adapt.

Stump wood is a hot alternative when the heating plants demands more and more forest fuel. The aim with the study has bean to calculate the costs in four different systems for transportations of stump wood, examine if there are any differences in fuel quality for the stump wood in the different systems, analyse if the fuel quality in stump wood is affected with the time it lays by the road side and how much space the stump wood demands on the road side. To calculate the costs for the different systems a system analysis was carried out, where some of the costs were collected through field studies on Holmen Skog stump experiment and other costs were collected from literature and contacts. Data for the fuel quality study was collected from Eons heat plant in Norrköping. Data for the study of how much space stump wood takes along a roadside was collected from field studies.

Denna uppsatts är ett kandidatarbete på programmet för Fysisk Planering på Blekinge Tekniska Högskola och omfattar 15 hp. Uppsatsen genomförs under utbildningens tredje år. Uppsatsen undersöker hur problem och konflikter med konflikter vid hantering av olika sorters trafiksystem på samma plats har skapat en problematisk trafiksituation i Bergåsa. Vilka aktörer som bidragit till att dessa konflikter uppstått undersöks, och hur dessa aktörer även begränsar platsens framtida utveckling. Detta genomförs genom en teknisk och historisk studie av platsen, kopplat till en analys av aktörernas påverkan på processen.

Den här uppsatsen försöker besvara frågan om hur man kan förmedla känslor, tankar och stämningar till människor med trädgården som medium. Uppsatsen söker även svar på om man specifikt kan designa gröna miljöer som riktar sig till människor som går igenom ett sorgearbete. Här ges exempel på flera olika designteorier och olika sätt att tänka kring hur man skapar meningsfulla landskap. Därefter presenteras forskning kring hur människor tar sig igenom ett sorgearbete och bemöter känslor av sorg. Uppsatsen tar även upp Appelton?s teorier kring habitat och prospect/refuge och hur människan förhåller sig till rummet. Vad som avgör vår känsla av trygghet och de underliggande mönstren i hur vi läser av vår omgivning. I den avslutande delen av litteraturstudien går jag närmare in på hur man kan skapa helande miljöer för människor som genomgår ett sorgearbete. I uppsatsen ingår även två utformningsförslag som är baserade på den tidigare genomgångna litteraturen kring hur man skapar trygga och helande miljöer.

The purpose of the study was to determine the attitudes of the teachers of Reggio Emilia inspired preschools concerning the science work with children between the ages of one and three, as well as their opinions on how the physical preschool environment and the choice of materials influence their scientific work. The study was conducted in three departments of two different kindergartens. Although both kindergartens called themselves Reggio Emilia inspired, their working methods and their environments differed largely. None of them were originally built as Reggio Emilia inspired preschools. One of the kindergartens strived to design their indoor environment the same way as the preschools of Reggio Emilia are constructed, there for they were setting up different stations where the children themselves have the opportunity to explore various scientific areas.

The harness racing industry has roots hundreds of years back in time and breeders through time have changed the horses to a mix of potential, harmony and speed. Breeding has changed the conditions and created a horse that perform better and better. A risk with high-performance horses is that injuries related to training and racing may occur more often. In training and racing situations, lameness is the most common injury. There are many factors affecting the occurrence of injuries and lameness of the trotter horses, such as how the horse is trained and raced, the surface condition of the racetrack, banking and angle of the curves of the racetrack and how fast injuries are discovered and treated.

This essay is about the origin, planning and establishment of the European Space Research Organisation's (ESRO) sounding rocket base Esrange outside Kiruna in Northern Sweden. Three main questions are examined. First I show there were not just scientific and technical but also political, economical as well as military reasons to build a European rocket base. Second, I scrutinize the reasons to choose Northern Sweden as the location for the rocket base. As it turns out, the main reasons were the favourable location of Northern Sweden within the aurora oval zone, the proximity of the Kiruna Geophysical Observatory, and the possibility to use a large, although not quite uninhabited, area where the launched rockets could crash.

A change towards using more biofuels than fossil fuels is taking place in Sweden, and in many other parts of the world. This makes the use of fuel pellets increasingly popular, causing a greater demand for sawmill sawdust products. There is a trend towards the use of multiple types of shredders, instead of a single type in each sawmill. The purpose of the study was to characterize the different flows of saw particles that can be found at Sävar såg when cutting thick or thin wood with different cutting techniques. The saw particles size, shape, moisture content and heat value were analysed by the cutting stations: first cutting fast and slow, second cutting fast and slow, grading fast and slow and planning.

Ambulanssjuksköterskor är sårbara när det gäller både kortvarig och långvarig stress då de efter en traumatisk händelse ligger i riskzonen för att utveckla en akut stressreaktion. Stressreaktioner kan ses som en normal reaktion för den som varit med om en traumatisk upplevelse. Många har lärt sig att hantera detta i sin arbetsvardag, men för en del utvecklas denna stressreaktion till att bli långvarig. Det är betydelsefullt för ambulanssjuksköterskor att ha strategier för att kunna hantera upplevelsen efter traumatiska händelser och därmed kunna förebygga långvariga stressproblem. Vårt syfte var därför att undersöka hur ambulanssjuksköterskor hanterar upplevelsen efter en traumatisk händelse.

The parallel bars is used in physical therapy and is mainly used for patients who have to train walking and balance after a stroke or an operation. It consists of two long handrails with two legs on each handrail. These legs go down into two ground-plates and are locked at the wanted height with a pin. The parallel bars is an appreciated device and is used on a daily basis in many care units.The main issue with the manual parallel bars is that it is very difficult and heavy for a single person to adjust the height of it. If a larger adjustment of the height has to be done, the legs have to be adjusted one at a time otherwise the they will be locked.

This thesis is a study of residential environments and a design concept for a proposed housing area in Tierp. The industrial era created a need for the central planning of housing. The confined environments that arised in cities during the 19th century, together with modernistic and democratic ideas, led to regulations in planning and housing. Though the overall goal has been the same: to create a good standard in living, the ideas of how to achieve that have varied. The starting point for following generations has been to attend to the insufficiencies of the earlier planning periods.

Hallstaviks papermill is an industry plant within Holmen Paper. Hallstavik is a mechanical mill and produce newspaper and journal paper. During year 2000, Hallstavik used approximate 1.200 m3f spruce, either as logs or chips from sawmills. Due to that the production is running continuously the mill also needs raw material at the same rate. At some periods the supply of raw material cannot keep up pace.