The theoretical focus in this master is information retrieval (IR), and especially the part of IR that includes interactivity. This research is by some researchers called IIR. Our principal aim was to examine if search engines on the WWW are taking advantage of research results from IIR research. A way to do this is to look at the application of special features, in this case query expansion (QE) and relevance feedback (RF). Both these methods aim for a better matching of documents and the searchers information need.

Detta examensarbete är utfört på avdelningen TPM-office, Volvo Personvagnar AB i Olofström. Idag producerar VCBC, Volvo Car Body Components, i Olofström med en produktionstakt på cirka 450 000 karossatser om året. Tanken är att en 30 % takthöjning skall klaras av med samma numerär av människor. Detta kommer att ställa enorma krav på utrustningarnas tillgänglighet. Det övergripande målet är att skapa förutsättningar för en effektiv reservdelsberedning och det förebyggande underhållet.

This study will identify the environmental impact in terms of carbon dioxide for a boiler house on behalf of Kvänum energi. The boiler central consists of a main building, which in turn contains multiple components such as boilers, pipes, etc, the boiler central uses pellets fuel. It also includes a silo and an ash container. The total weight of the boiler is about 63 tons. Each boiler has an output of 600 kW; the central includes three boilers with room for a fourth if necessary.

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.

Children and young people's right to culture is a priority in the Government's cultural policy. Creative school was introduced in 2008 with the aim that children and youth should receive professional culture in school and increasing access to culture in all forms of expression and possibilities of their own creation, with starting points in the school curriculum. The purpose of this bachelor is to explore the view, the treatment and the use of Creative school in Värmland. A comparison has been made between professional culture, which conveys the culture and culture Coordinator who develops and co-ordinates the work of culture in schools, based on their experiences of creating school. I have looked at what barriers and opportunities there are in liaison with the school and how creative activities can be integrated into the school's other subjects.

This report is of technical character and treats how to plan a small building in Borlänge, Sweden.The technical components that have been treated in the report are the construction, foundation,installations and thermic abilities of the house. In addition to planning this house the report alsocontains a part that deepens in net zero energy buildings. The purpose of the report is toinvestigate if the house in Borlänge can be constructed to meet net zero energy buildingdemands.Energy efficient houses such as passive- and net zero energy houses are showing more frequenton the market in Sweden. Ongoing climate changes and growing consciousness about theenvironment in society have contributed to that the environment is a well discussed topic. Toconsume small amounts of energy and at the same time produce local energy is thereforesomething that lies in the future and future houses.

The connection between body, soul and social surroundings and their influence on health has, in the western world, been known for over a hundred years. The hospital social worker with tasks within the area of the psychosocial perspective is therefore now a part of Swedish healthcare. Yet both international as well as national research and literature show that social workers have a slow professionalizationprocess and difficulties describing their area of tasks and methods. This study aims to explore hospital social workers line of work, what they believe becomes help in their work with patients and put results in relation to professionalization in the medical environment. The results are problematized from perspectives like professionality, power and role.The study includes 86 hospital social workers at Sahlgrenska Universitetssjukhuset in Gothenburg Sweden and it contains both quantitative and qualitative parts.

The development within the textile industry is always ongoing with development of new andbetter textiles, which often mean the use of non-natural materials like polyester. This doesn?t lineup with the work shared around the world against an improved environment, so the idea came touse a form of linen fibers instead of polyester as the reinforcing material together with cotton.The idea was to use flax, linen of low quality, which is seen as a waste product and garbage inthe production of high quality linen and flax seed oil. This flax of low quality needs to beseparated before it can be used in cotton spinning machines. Fireball 2 is just that, a process toseparate flax fibers through the treatment of a technique called electrohydraulic discharge.The thesis works goal is to evaluate the Fireball 2 process ability to separate flax fiber.

In modern dairy production the milking frequency is increased in some herds due to introducing of automatic milking systems or the farmers decision to milk high producing dairy cows more than two times a day. With more frequent milkings the milk yield increases while the content of fat and protein decreases. However, how the composition of protein is influenced is not fully evaluated. The purpose of this study was therefore to see if a higher milking frequency had any impact on the milk production and especially on the protein composition. This study was conducted as a half udder experiment.

St. John?s wort extract is composed of a large number of components, about 150, but the most studied and interesting substance are hyperforin and hypericin. The herb is very popular and it is known for its pharmacological efficacy in numerous disorders. It is used for treatment of mild to moderated depression as an alternative to synthetic antidepressants.

In this work, a method was developed and evaluated for calculating the life of welds under the influence of fatigue loads from a vibration environment. Typically, a shaker table is used for testing a component against vibration loads. The shaker table creates a vibration environment that is defined in the frequency domain by a power spectrum.Similarly, a virtual vibration table can be used to calculate the same type of load environment, which can then be used to calculate the expected lifetime. The benefit of this method is that it can be used in design, as well as in simulation of tests before physical verification tests are carried out.Today there are methods for calculating fatigue life of non-welded base material, but since many components contain welded joints, there is a need to apply this method to those types as well. To achieve this, the thesis combines two different areas, which together provide a method for fatigue assessment of welds using a virtual shaker table.The methodology is carried out by modeling the component, and its welded joints, in a finite element program.

The Bovine respiratory syncytial virus (BRSV) causes bronchiolitis and interstitial pneumonia, predominantly in calves, and is a major cause of bovine respiratory disease worldwide. In humans, BRSV is paralleled by the closely related Human respiratory syncytial virus (HRSV), an important cause of respiratory disease, most severe in infants.The clinical signs and pathology during RSV infection is caused, not only by the direct effects of viral replication, but also by the response of the host immune system. The immunopathology of RSV has long obfuscated our understanding of the disease, and development of effective treatment and vaccines will be very difficult until greater knowledge is gained.One of the components of the immune system that has come into focus in RSV research the last few years, is the Toll-like receptor 4 (TLR4). The TLR4 receptor is well known as the receptor that binds lipopolysaccaride (LPS), and initiates the host response to bacterial infection. Recently, it has been shown that the fusion protein of RSV also interacts with, and up-regulates the expression of, the TLR4 receptor.

Purpose: This study aims to investigate the conditions that prevail when companies put their marketing in social media with the purpose of creating a perception of the risks and opportunities it brings to businesses and ultimately how it may affect the corporate image and identity.Theories: The basis of the problem area are presented through a theoretical framework with the purpose of highlighting the notions of social media, communi- cation, marketing communication, groundswell, corporate identity and image.Methodology: To investigate the research questions this study adopted a qualitative approach in which the authors study the properties of a phenomenon in order to seek a deeper understanding of the problems we have presented. There is an exploratory approach to knowledge and the authors have chosen to conduct qualitative research interviews based upon three themes: driving forces, challenges and impacts.Conclusion: The study revealed that traditional models of communication are no longer applicable in social media. Companies are up for a challenge and must clarify their sole purpose when establishing communication in the social landscape. The general motivation for marketing in social media is making profit, however, building relationships is not a natural motive for most companies. The risks companies expe- rience is the exposure caused by social media and the study also reveals that this fear is firmly attached to their lack of knowledge of these new channels of communicat- ion and their primary areas of use which indicates that skilled employees plays a vi- tal role with their use of social media in their communication process.

Syftet med denna uppsats är att berika den befintliga teorin om verksamhetsstyrning inom offentlig sektor med fokusering på överensstämmelsen mellan mål och resurser i den offentliga hierarkin. Undersökningen är av en fallstudiekaraktär där forskningsprocessen bestått av ett antal personintervjuer. Dessutom har vi samlat in en del sekundär data som var nödvändig för att slutföra studien. Vi har valt att utgå från teorier som behandlarverksamhetsstyrning med tillhörande komponenter Empirin består av insamlat material från intervjuer som ägde rum på Malmö Stadskontor, två stadsförvaltningar samt två grundskolor i respektive stadsförvaltning inom Malmö Stad. Våra slutsatser påpekar att det finns klara avvikelser mellan mål och resurser inom de studerade enheterna.

Som grafisk formgivare a?r framtiden i ett utvecklande stadium, da?r de tryckta publikationerna o?verga?r till allt fler digitala alternativ. I detta kandidatarbete beskrivs oron fo?r tryckproduktionens framtid och hur vi med hja?lp av kommunikationssa?ttet Crossmedia kan hitta en lo?sning pa? problemet. Kommunikationssa?ttet fo?rutsa?tter inte bara fo?rdelar fo?r tryck utan a?ven andra mediekanaler i digital form, da?r mediedelarna fa?r mo?jlighet att samspela fo?r att kunna na? ut till en bredare publik.