I denna studie undersöks Uppsala universitets kommunikationsstrategier från mitten av 2000-talet till och med 2010. Kommunikationsstrategierna undersöks utifrån ett nyinstitutionellt perspektiv, för att studera hur institutionellt tryck som marknadisering kommit att påverka dessa. Marknadiseringsprocessen undersöks i sin tur utifrån den institutionella omgivningen i form av politiska initiativ, för att studera den institutionaliserade processen. Utifrån nyinstitutionell teori om organisationers tendenser till formaliserade strukturer, jämförs vad som kommit till uttryck i kommunikationsstrategiska dokument med hur det externa kommunikationsarbetet i praktiken har utvecklats under denna tidsperiod..

This thesis compares four relevance feedback methods. The Rocchio and Ide dec-hi algorithms for the vector space model and the binary independence model and Okapi BM25 within the probabilistic framework. This is done in a custom-made Information Retrieval system utilizing a collection containing 131 896 LA-Times articles which is part of the TREC ad-hoc collection. The methods are compared on two grounds, using only the relevance information from the 20 highest ranked documents from an initial search and also by using all available relevance information. Although a significant effect of choice of method could be found on the first ground, post-hoc analysis could not determine any statistically significant differences between the methods where Rocchio, Ide dec-hi and Okapi BM25 performed equivalent.

The report aims to describe the austenitic stainless steel Sanicro 25 from a thermomechanical point of view. The thermal and mechanical properties of the material make it suitable for use in coal ? and thermal power plants. By the use of Sanicro 25 it would be possible to bring the efficiency of these plants up while bringing the carbon emissions down.A material model is created from material testing and validated through simulation in the finite element software Abaqus. The model that has been derived describes the material behavior during loading and stress relaxation for the first cycle in a thermomechanical fatigue test well.

This Masters thesis concerns epistemology in Knowledge Organization KO, as a field of study in Library and Information Science LIS. Using a theoretical model by Birger Hjørland and foucauldian discourse analysis as springboards, this study analyses three epistemological discourses in the practice of KO. The aim of the study is to show how these discourses are constituted and demarcated in relation to KO, as well as to examine how they fit into Hjørlands model. A brief historical outline of some epistemological trends in LIS is sketched, as well as examples of how different epistemological schools influence different parts of KO, e.g. information retrieval, indexing- and classification theory.

Simulation is a vital tool during development of JAS 39 Gripen, since money and time can be saved.The Auxiliary and Emergency Power System, AEPS, is a subsystem of the secondary power system in Gripen. It has the function of providing the aircraft with electrical and hydraulical power before activation and after deactivation of the main engine. The system also functions as backup in case of a safety critical problem in the main power supply system. The system basically consists of a control unit and an auxiliary gearbox. The gearbox is driven by an air turbine.

This study examines if the prediction of cardiovascular disease in hypertensive patients can be improved upon when renal function and microalbuminuria are added to the classical risk factors The predictive capability of a model is measured by discrimination, calibration, reclassification and Harrell's C.The results are ambigious. In most cases, microalbuminuria should be included in the model, but the results regarding the other measures of renal function are varied. Therefore, the selection of risk factors to include in the model depends on which measure of prediction one prioritizes..

Det har aldrig funnits så mycket kunskap och vetenskap på de svenska universiteten som idag. Dock når inte denna kunskap alltid utanför akademin för att utnyttjas i kommersiella innovationer. Relationer mellan aktörer är fundamentalt för ett innovationsutbyte och därmed är kontaktytorna mellan universiteten och näringslivet kritiska för att sprida kunskap däremellan. Syftet med denna uppsats är att undersöka hur företag inom life science i Uppsala uppfattar relationer med Uppsala universitet samt vilka nyttor, drivkrafter, barriärer och konflikter som finns i denna relation. Företrädare för åtta företag har intervjuats och därefter har relationerna med Uppsala universitet klassificerats ur teoretiska modeller samt analyserats.

Uppsatsen syftar till att belysa och diskutera den utveckling som skett inom kyrkokonsten, och då främst altartavlor. Undersökningen grundar sig i två kyrkor i Uppsala stift, Gamla Uppsala kyrka och S:ta Maria kyrka.   Urvalet är begränsat till att beröra konst från 1200-talet fram till modern tid. Metoden som använts är ikonografisk bildanalys av altartavlor och altarskåp i de utvalda kyrkorna likväl som forskning i kyrkokonstens utveckling i modern och gammal litteratur. Genom undersökning av skriftverket Biblia Pauperum dras slutsatser gällande den äldre kyrkokonstens inspirationer.   Undersökningen påvisar att en utveckling har skett inom kyrkokonsten. Konstnärerna har fått en större frihet i val av innehåll och form på konsten som beställs.

  .

Denna rapport är resultatet av ett examensarbete som utfördes under våren 2011.Centralt placerat i Uppsala ligger idag Österängens Idrottsplats som inrymmer en fotbollsplan samt möjlighet att utöva friidrott. Tanken med arbetet har varit att utreda behovet av en ny inomhusanläggning för idrott på denna plats samt hur denna skulle kunna gestaltas.Som en del av arbetet har det gjorts intervjuer med personer kunniga inom ämnet, granskning av området kring Österängen samt för arkitekturens skull gjordes en inspirationsresa till Köpenhamn.Arbetet är uppdelat i två huvuddelar, en utredningsdel och en gestaltningsdel. Utredningsdelen har resulterat i argument som stödjer idén om en inomhusanläggning på Österängens IP. I gestaltningsdelen har det arbetats fram ett program som legat till grund för de ritningar som redovisas i rapporten. Dessa är förslagsritningar i form av planer, sektioner och renderade bilder.Examensarbetet är gjort tillsammans med Werket Arkitekter i Uppsala där Anders Eriksson varit till stor hjälp..

In system development it is today increasingly common to use a model-based system development method. These methods that are suited for Agile work with simple and quick updates and implementations of new applications in systems conform to the requirements that are becoming more important today, namely more flexible and less expensive system that still maintain high quality and safety.A company that has been working with this type of system development method for a long time is Genicore AB, which also has developed their own tools and model language in order to better model the information management systems in complex and abstract operations. Genicore AB is trying to spread their method other developers and have therefore taken the initiative to start this study. The method is evaluated and tested by two students with relatively little experience in model-based systems engineering in order to gain a new perspective on how the method functions. The method has been applied to an educational activity in order to test it in a new domain, and this led us to our research question;?What criteria are of particular relevance in the implementation of a MBSD method on on complex businesses??Through literature reviews and interviews, we formed an idea of how model-based system development works from a theoretical perspective, and then continued to the case study conducted on the educational activities at the faculty of IT at University of Gothenburg.

Due to increasing regulations regarding new diesel vehicles particulate matteremissions the new Scania truck, Scania Euro 6, has been equipped with a particulatefilter. This component effectively stores the particles in the exhaust gas but must becleaned in order to prevent itself from clogging. The filter is cleaned through aprocess named regeneration which is a thermodynamic process in which thetemperature of the filter is raised through fuel supplied to the exhaust gas.The purpose of this thesis is to contribute to the development of improved controlstrategies of the temperature during the regeneration process through thedevelopment of model-based controllers. These controllers are designed in order tohave good performance in stationary as well as automatic regeneration.In order to develop these model-based controllers a model of the system isconstructed. The model is described as a linear thermodynamic grey-box model withflow varying parameters, showing good results in validation.The model provides a simulation environment during the controller design, which isfocused around the development of linear regulators with the exhaust gas mass flowas a scheduling variable whose size determines controllers? mode of operation.

AbstractIn urban societies people spend more and more time indoors, which put great demands on the indoor environment. If the ventilation is to manage the removal of unwanted substances in the indoor air, a good mixing of the air is required. The question arises that, whether the buoyancy forces will counteract a good mixing of the indoor air or not?This report aims to clear up the difficulties whether you need to consider the buoyancy forces or not, when adjusting a ventilation unit. For studying the indoor mixing of the air a two dimensional model is constructed in COMSOL Multiphysics.

The power system modelled in this thesis work has been developed for simulationwhen e.g. the production in some part of the power system is changed. The powersystem has been modelled according to the swing mass of the system, the frequencydependency of the load and the turbine governor. The model determines the systemfrequency, the period of regulation and the power exchange between the differentsubsystems in the Nordic synchronized system.In this model the system frequency is assumed to be the same in all different parts ofthe power system and the voltage conditions in the power system are neglected. Forthat reason power swings does not occur between different subsystems in the powersystem, which usually occur as a result of the swinging connection between thetransmissions line.

A well, situated on Listerlandet in the western part of Blekinge in Sweden, has a very high content of nitrate. Water with a too high content of nitrate is hazardous to human health, in particular to small children. The area surrounding the well is mostly drained agricultural land with some larger farms for chicken and mink. The well takes its water from the bedrock and is deeper than most other wells affected by nitrate. The bedrock in the area is dominated by limestone with a relatively high flow of water.This thesis was performed in order to find the source of the nitrate.