Automatic query expansion has long been studied in information retrieval research as a technique that deals with the fundamental issue of word mismatch between query and document. The purpose of this thesis is to compare the retrieval effectiveness of different strategies for automatic query expansion. The strategies are based on local analysis of the corpus and use statistical information from the local document set to extract terms that suppose to adapt themselves to each individual search and therefore appear to be searchonyms to the index terms. The strategies compared are: association clusters, metric cluster and scalar cluster. Baseline queries of 24 topics are expanded using terms from the different clusters and searches are made.

Detta examensarbete är i grunden ett konstruktionsprojekt med syfte att utveckla en ny generation av dekontamineringsutrustning kallad Incinerator åt Getinge Sterilization AB. Incineratorn är en tryckbehållare som ska avdöda farliga sporer och utvecklades ursprungligen på 70-talet. Denna har uppdaterats flera gånger under dess livsspann men konstruktionen för med sig flera problem som nu ska lösas med en helt ny generation, kallad Incinerator 2.0. Projektet har främst handlat om konstruktion men beskriver även processteknik och dekontamineringprocess av farligt media. Då detta examensarbete berör tryckbehållare och dekontamineringsprocesser så har flera standarder och direktiv som t.ex.

The aim of this thesis is to examine librarians' view on the knowledge and competence required at a small public library and how they look upon their education in retrospect. Library education in the 1970's and 1980's was mainly practical, a vocational training, but since 1995 the education results in an academic degree in Library & Information Science. Due to this, we focus on the ongoing generation shift in Swedish libraries as an aspect of knowledge and education. The empirical study is based on interviews with librarians working in minor public libraries. The informants form two groups, based on their education; ?old? ones and ?new? ones.

The decomposition of organic carbon in drained peat soils is a major source of carbon di-oxide in Sweden. A big part of these drained peat soils are used in agriculture and it is a big challenge to slow down their decomposition. It has earlier been thought that less tilling and higher water table levels would decrease the activity of soil microbes and thereby the decomposition, but recent experiments has showed that this has little or no effect. In this bachelor thesis a field experiment was made on drained peat soil with ley, outside Björklinge, Uppsala municipality, Sweden. The experiment was carried out in May 2011. The objective was to develop a method to examine how the net exchange of carbon diox-ide from plant covered peat soil is affected by temperature and photosynthetically active radiation (PAR).

Swedish family companies are facing a tremendous change in the form of generation changes because of the large part of owners that are about to retire. If all 45 000 to 50 000 family companies ceases to exist, Sweden looses a significant part of business trade.There are numbers of different methods for an older generation of owners to transfer their companies to a younger generation such as inheritance, gift, will, internal stock transfer, division?s etc., where inheritance is the most complex area. That an owner of a company dies without any plan for the future of the company is not preferable because the rules of legal successions occur. The law system regarding inheritance is usually not a good method since the surviving wife, who has the primary right to the inheritance, may not be interested in the company.

In today?s world there are plenty of technological tools and methods available with the purpose to increase peoples motivation for a healthier lifestyle. One such tool is a so-called activity tracker which uses sensors to log the user's everyday life and present it as automatic feedback. Gamification is a new and successful method to motivate and engage people in fulfilling tasks by using game elements and mechanics. In this study, five participants were instructed to use the activity tracker and pedometer Fitbit Flex daily for three weeks. Halfway through the study the participants were ranked and listed against each other in a ranking list in order to evoke competition.

Title:Knowledge system - a new way of observe the company Authors:Malin Pärmborn och Susanne Gidlöf Tutor:Anders Nilsson Department:Department of Business and Management Blekinge Institute of Technology Problem:How can processes of problem solving in a project contribute to generation of organizational knowledge in a knowledge company? Course:Master thesis in Business Economy Purpose:By describe the processes of problem solving in two different projects of our two chosen knowledge companies, we will clarify whether problem solving contributes to the generation of organizational knowledge. The purpose of this research is to increase the management consciousness concerning everyday processes that will contribute to the creation and transfer of knowledge. This is a condition to transfer human capital to structure capital and thereby decrease the company?s vulnerability. Approach:We gathered the data we needed through conversations and interviews with people on the two knowledge companies.

The purpose of this paper is to examine how the Greeks in connection with the crisis in Greece is portrayed in Swedish newspapers, as well as the second generation Greeks in Sweden experiencing and interpreting the portraying and how it affects their everyday lives. The idea is to create an understanding of what happens when ethnic aspects is being portrayed in the media and how it is perceived and interpreted by second generation immigrants, and what this might mean for the impact of their daily life. The study is based, therefore on the following questions; how are the Greeks in connection with the crisis in Greece being portrayed in Swedish newspapers? How does second generations Greeks in Sweden perceive and interpret the portraying, and how it affects their everyday lives?The study's basic methodological approach is qualitative text analysis and qualitative interviews. Qualitative text analysis is to bring out the essential content through careful reading of the text parts and the context in which it is included.

This thesis describes possibilities for Metso Paper to lower their costs of spray pipes for their pulp wash press TRPE, with maintained good functionality and quality.Information that can be used by competitors has been censored in this version of the essay.To find solutions, alternative suppliers have been contacted and asked to quote. There has also been a new spray pipe designed. The manufacturing costs of the new design have been calculated.The thesis also contains a concept generation of an alternative product to the spray pipes in installations where a high pressure washer is used.To be able to ask other manufacturers of spray pipes to quote, a demand specification based on the currently used spray pipe was made. This was then sent to two alternative suppliers.An investigation of earlier used spray pipes, and the currently used, shows that the nozzles are a big part of the total costs of the spray pipes. To attempt to reduce the nozzles high cost an concept generation was made to find the best solution for a new design.There was a request that it should be possible to change the internal brushes in the spray pipe without cutting and welding.

This thesis describes possibilities for Metso Paper to lower their costs of spray pipes for their pulp wash press TRPE, with maintained good functionality and quality.Information that can be used by competitors has been censored in this version of the essay.To find solutions, alternative suppliers have been contacted and asked to quote. There has also been a new spray pipe designed. The manufacturing costs of the new design have been calculated.The thesis also contains a concept generation of an alternative product to the spray pipes in installations where a high pressure washer is used.To be able to ask other manufacturers of spray pipes to quote, a demand specification based on the currently used spray pipe was made. This was then sent to two alternative suppliers.An investigation of earlier used spray pipes, and the currently used, shows that the nozzles are a big part of the total costs of the spray pipes. To attempt to reduce the nozzles high cost an concept generation was made to find the best solution for a new design.There was a request that it should be possible to change the internal brushes in the spray pipe without cutting and welding.

De kommunikationsfo?ra?ndringar som kommit med den tekniska utvecklingen har fo?r organisationer inneburit en o?kad komplexitet och decentralisering som sta?ller ho?gre krav pa? den enskilde medarbetaren. Det har a?ven fo?ra?ndrat hur medarbetarna tar till sig, fo?rmedlar och bearbetar den information som ges. Fo?rutom att inneha?llet i det som kommuniceras bo?r fo?rega?s av relevans sta?ller det ocksa? krav pa? fo?retagsledningar och enskilda avdelningsansvarigas kommunikationsinsatser.

The purpose of this project is to get a fully functional, automatic steering system and a variable breaking system with an emergency breaking function to an off road vehicle. This off road vehicle is supposed to work as an aid in military situations. A team of two, Sebastian Attervall and Nichlas Gustafsson, got an order from Jonas Nyårds and the PreeRunners Project to construct a steering system that could manoeuvre an off road vehicle without any human involvement. To make this possible the vehicle would be guided by onboard sensors, cameras and computers. The team where also assigned to construct an automatic breaking system, there also no human would be involved.

This thesis describes possibilities for Metso Paper to lower their costs of spray pipes for their pulp wash press TRPE, with maintained good functionality and quality.Information that can be used by competitors has been censored in this version of the essay.To find solutions, alternative suppliers have been contacted and asked to quote. There has also been a new spray pipe designed. The manufacturing costs of the new design have been calculated.The thesis also contains a concept generation of an alternative product to the spray pipes in installations where a high pressure washer is used.To be able to ask other manufacturers of spray pipes to quote, a demand specification based on the currently used spray pipe was made. This was then sent to two alternative suppliers.An investigation of earlier used spray pipes, and the currently used, shows that the nozzles are a big part of the total costs of the spray pipes. To attempt to reduce the nozzles high cost an concept generation was made to find the best solution for a new design.There was a request that it should be possible to change the internal brushes in the spray pipe without cutting and welding.

This thesis describes possibilities for Metso Paper to lower their costs of spray pipes for their pulp wash press TRPE, with maintained good functionality and quality.Information that can be used by competitors has been censored in this version of the essay.To find solutions, alternative suppliers have been contacted and asked to quote. There has also been a new spray pipe designed. The manufacturing costs of the new design have been calculated.The thesis also contains a concept generation of an alternative product to the spray pipes in installations where a high pressure washer is used.To be able to ask other manufacturers of spray pipes to quote, a demand specification based on the currently used spray pipe was made. This was then sent to two alternative suppliers.An investigation of earlier used spray pipes, and the currently used, shows that the nozzles are a big part of the total costs of the spray pipes. To attempt to reduce the nozzles high cost an concept generation was made to find the best solution for a new design.There was a request that it should be possible to change the internal brushes in the spray pipe without cutting and welding.

The study was carried out at the Kungsängen Research Centre, Department of Animal Nutrition and Management, Swedish University of Agriculture Sciences, Uppsala. The technical development in dairy production has resulted in a housing system where feeding and milking is done automatically without human contact, a so called automatic milking system. The motives for utilising an automatic milking system, is to increase the animal welfare and to decrease the need for manual labour. However, the system does involve a change for the animals, among the effects is the deprival or the diminishment of a chance for synchronous behaviour and the animals have to agree among themselves in which order they use the feeding stations and the milking unit itself. How and if this affects the animals well-being and production is yet to be solved. A possible way to form an opinion on this, is to study the animals ranking order along with hormone profiles and production. The purpose of this work was to study the effect of low- vs.