Chapter 1 defines the aim of the project and gives a general orientation about ground heat extractors. In chapter 2 physical processes that could be expected to be involved in the heat transport around a ground heat exchanger are discussed. It is shown from a literature study what amount of moisture transport due to thermal gradients there could be expected in a ground heat exchanger. The conclusion is drawn that the moisture gradient (Sr) is of same magnitude as the driving temperature gradient (°C). At the expected amount of increased moisture around the pipes the moisture transport could be considered to have a little effect on the brine temperature.

The product structure of the fuel tank installation is one of the most complex product areas at Scania. Caused by the number of parameters, which affect the fuel tank installation, a product structure is created which is very difficult to handle. Knowledge exist that the structure in a nearby future will be considerable more complex. The purpose of the study has been to understand in why this complexity exist and find ways to break the trend of a growing product structure. The goal was to achieve a more standardized fuel tank installation.A theoretical study was performed in order to bring knowledge in relevant areas both in general theory but also in documentation at Scania.

AbstractThis paper is a study in press reception with the intent to examine how twelve female actionheroes have been portrayed in Swedish media between 1974 ? 2006. The purpose is to discern patterns and differences in how the female movie character is received by their contemporary journalists and to relate their views to social and gender related theories. The female actionhero is an independent and brutal character, often alone and without a mother or a child. This separates her from typical female roles, which historically been characterized by passivity, fear and dependency on the male characters in the movie. The female actionhero as a character opens up for complex reception. One perspective in the research identifies the independent woman as a feministic icon.

Vid dimensionering av lokal brand enligt bilaga C, i EN 1991-1-2, så erfordras en värmeutveckling som beräknas i bilaga E. Boverket hänvisar dock i Europeisk konstruktionsstandard, EKS, 9 att bilaga E inte får användas utan rekommenderar i stället att Boverkets allmänna råd om brandbelastning, BBRBE, bör användas. En problematik vid användandet av BBRBE, är att den inte innehåller några beräkningsmetoder för värmeutvecklingen. Det åvilar därför projektören att vid varje enskilt fall vid analytisk dimensionering använda sig av relevanta beräkningsmetoder för att beräkna effektutvecklingen vid lokal brand.Syftet med det här examensarbetet är därför att utreda och jämföra beräkningsmetoder i Eurokod för lokal brand i hyllställningar i livsmedelsbutiker med simuleringar i FDS, Fire Dynamics Simulator, för att komma fram till slutmålet som är att fastställa en metod för att ta fram brandeffektkurvor och temperatur-profiler vid dimensionering av lokal brand. En metod som baseras på ekvationer från bilaga C och bilaga E i EN 1991-1-2.

Vid dimensionering av lokal brand enligt bilaga C, i EN 1991-1-2, så erfordras en värmeutveckling som beräknas i bilaga E. Boverket hänvisar dock i Europeisk konstruktionsstandard, EKS, 9 att bilaga E inte får användas utan rekommenderar i stället att Boverkets allmänna råd om brandbelastning, BBRBE, bör användas. En problematik vid användandet av BBRBE, är att den inte innehåller några beräkningsmetoder för värmeutvecklingen. Det åvilar därför projektören att vid varje enskilt fall vid analytisk dimensionering använda sig av relevanta beräkningsmetoder för att beräkna effektutvecklingen vid lokal brand.Syftet med det här examensarbetet är därför att utreda och jämföra beräkningsmetoder i Eurokod för lokal brand i hyllställningar i livsmedelsbutiker med simuleringar i FDS, Fire Dynamics Simulator, för att komma fram till slutmålet som är att fastställa en metod för att ta fram brandeffektkurvor och temperatur-profiler vid dimensionering av lokal brand. En metod som baseras på ekvationer från bilaga C och bilaga E i EN 1991-1-2.

The ?civilized? world is in need of fossil fuel in order to function. Hybricon AB is a company in Umeå that is developing a technology that hopefully can reduce parts of this need. They are currently testing their two electrical busses (with Hybrid backup) in city traffic on the roads of Umeå in cooperation with the county of Umeå.                               The busses are originally diesel-busses, but the diesel motor has been replaced with two electrical hub-motors with a power of 145 kW each that are powered by batteries.The batteries are charged at the end station after each route. In case the batteries should run low on capacity during driving, they can be recharged by the so called genset.

Svenska Lantchips is a Swedish SME sized snack manufacturer. Being a small, medium sized, family-owned business with branches throughout the world, they make an interesting company for a case study. The case study I have conducted focuses on the internationalisation process of this family owned company ? how they, despite their size, find ways to keep up an unique business structure, designed for internationalisation.The aim of this essay is to compare Svenska Lantchips? internationalisation process with traditional internationalisation theories and see if these are compatible with this company. The theories used are The Uppsala Model, The Network Model, and The Born Global Theory, with The Born Global Theory representing the younger generation of models.After undertaking an in-depth interview with Michael Hansen, business developer at Svenska Lantchips, I collated a substantial amount of material, which I have used as the basis of this essay.

Construction and maintenance of forest truck roads are a necessary element of industrial forestry. Payment for contracting services in this context can be done according to a number of payment models. This study will focus on the methods and consequences associated with a change of Holmen Skog?s payment model from per hour to per metric ton for ballast hauling. The aim of this study is to improve the economic efficiency of Holmen Skog?s ballast hauling in construction and maintenance of forest truck roads. This is done by formulating and evaluating a proposal for a payment model based on crowns per ton.

This study uses European researcher Tomas Valasek?s hypothesis about factors required for defence cooperation in order to achieve conditions which can be successfully applied to the Nordic defence cooperation NORDEFCO. The study uses only Norway and Sweden on the grounds that they are the original actors and the driving forces behind the defence cooperation. The factors studied are; the countries' strategic culture, solidarity and trust between countries, similarity in military forces, if similar conditions prevail in the defence industry and if the intentions of cooperation have been clarified.Mainly government documents in the form of propositions, orientations and defence documents are studied, together with previous research in this area and, especially, interviews with representatives of NORDEFCO at military level and policy level as well as outside perspectives from the military attachés in each country. With the intention of studying the extent to which the factors Valasek features may prove to be significant in assessing the conditions for enhanced cooperation in NORDEFCO, the study raises the question of how it is possible to find expressions for the factors.

GPS (Global Positioning system) and GIS (Geographical information system) has been used for planning and inventory in the forest sector for more than ten years. The last years the development has come to equip harvesters and forwarders with GPS and GIS (GIT). The goal with this study was to reach a basis for decision, how Stora Enso Skog should continue its investment in GPS and GIS in harvesters and forwarders. To reach this basis for decision, possible advantages and benefits, disadvantages and problems in the harvesting process was evaluated. The study was made as an interview study with four harvesting managers and ten machine teams. To secure the quality of the results an interview questionnaire was made before the interviews were done. The results showed that GIT will make the harvesting managers work easier.

Arbetet som skogsmaskinförare är mycket belastande både fysiskt och mentalt. För att minska arbetsskador och sjukskrivningar, vilket i längden kan leda till brist på förare och svårigheter att rekrytera nya, behöver arbetsbelastningen minskas. Genom att automatisera vissa delar av skördarförarens arbete kan vinster avseende både den fysiska och mentala belastningen göras. Detta genom att föraren får mer tid att ta de många beslut som ingår i arbetet medan maskinen tar över enkla, upprepade handlingar. Därmed minskar också reglageanvändningen och det ges fler möjligheter till mikropauser då musklerna kan återhämta sig.Målet med examensarbetet var att genom studier av kommunikationen mellan människa och maskin komma med förslag på hur belastningsproblemen kan lindras.

Shock absorber units play a key role in establishing the driving dynamics and performance of automobiles. Öhlins Racing has manufactured high-tech automotive shock absorbers for over 30 years. Öhlins Racing?s advanced technology has contributed to over 200 world championships in automobile racing. Öhlin?s manufacturing process has long utilized automated fluid filling equipment during the final shock absorber unit assembly stage. The filling process consists of vacuum pumping the shock absorber unit and subsequent transfer of fluid. Vacuum pumping is necessary to remove residual air from the shock absorber unit prior to initiating the liquid filling stage. The presence of undesirable gases drastically compromises the performance of a shock absorber. The filling degree, defined as the final ratio of air to oil, is determined by the specific filling protocol as well as the specific equipment utilized.The current investigation aims to develop a viable technique to accurately determine residual air content in shock absorber units. If the filling degree can be appropriately quantified for a specific manufacturing process, then the air/oil ratio may be quantitatively related to shock absorber performance. The utilized measurement method must be completely integrated into the manufacturing process to guarantee shock absorber performance specifications according to the manufacturer?s standards. By utilizing the measurement method developed in this work, the manufacturing process, manufacturing equipment and product specifications can all be tailored to provide improved filling conditions.The developed measurement method provides accurate quantification of the filling degree under a wide range of processing conditions. The method establishes the relative quantity of air in the shock absorber unit by performing in-situ compressibility tests. The fill ratio can be controlled and varied by manipulating the vacuum pressure exerted during the filling process. Performance tests, however, indicate no correlation between filling degree and unit performance..

The constant need of energy is something that affects us all no matter our current situation. Whether we are driving our car to work, taking the elevator or using the oven to cook dinner we end up relying on energy. Our whole society is continuously striving to achieve a higher grade of efficiency and the process of supplying ourselves with energy is no exception. The importance of appliances in our everyday life cannot be exaggerated and thus the importance of their high efficiency.Efficiency is already a keyword in the appliance industry with labels, stars and numbers helping us choosing the most suitable option for the task ahead. No matter how efficient appliances often use pure electricity as their energy source.

This is a thesis for a Bachelor Degree Project, performed in the subject MechanicalEngineering. The students Roger Malmberg and Simon Hagberg have carried out adesign project on behalf of the recently established company J&D Assisting systems,located in Halmstad.The project consisted in developing J&D's first prototype of a power assisting solutionfor wheelchairs. A power assisted wheelchair combines human power, which is deliveredby the arms through the pushrims, with electrical motors, which are powered by a battery.The power assisted wheelchair is aimed at customers, who have used a regularwheelchair for a long time, but who have become weaker or just need additional powerwhen driving uphill. This kind of wheelchair will provide additional power for users,which will spare their wrists, elbow and shoulders. The product is torque sensor free andinstead it relies on the velocity.

This study is based on interviews with five unit managers working in the functional disabilities business. The purpose of this paper is to examine how these unit managers see their roles and their leadership, and to give the reader an insight into what it might entail to be a manager in social work. Theories applied are the role theory and three leadership theories. The previous research this study made ??use of affects ?leadership in social work" and "manager's role and leadership style."Being a unit manager of the functional disabilities business means having a so-called middle management position, which entails expectations being directed upon them from various avenues.