This report describes the results of the project "Concept development of jet engine inspection plugs" carried out in the spring of 2008. The work was done at the department of product definition at the company Volvo Aero in Trollhättan. The objective of the work was to develop concepts for a "Volvo-unique" inspection plug. The work is part of Volvo Aero's focus on proprietary (self-developed) technologies. Inspection plugs can be found on virtually all aircraft engines and gas turbines.

The environmental requirements and laws on combustion engine emissions are very tough today andthey will become even more stringent in the future. To achieve these requirements there are highdemands on the control systems for these engines. An improved precision in the measurement of anengine's speed and position gives the electronic control system an even better timing when it comes tofuel injection and ignition. This makes the engine more fuel efficient, reducing the emissions. This thesisis part of a collaborative project between Hoerbiger Control Systems and subsidiaries.

This thesis work is the last part of the Master of Science education inmechanical engineering at KTH, Stockholm.The aim of this project was the development of a Multi-zone modelfor NOxformation in Diesel engines. Because of the stringent emissionlegislations, great effort is made to decrease the fuel consumption and theharmful emissions of internal combustion engines. Computer simulationsplay a decisive role in this context because they substitute the expensiveand time-consuming laboratory tests.The model is based on a multi-zone approach and uses the wellknownExtended Zeldovich Mechanism which gives a relation to calculatethe NO formation rate using the concentration of different gas speciesinvolved in the process.All the most important phenomena involved in the Diesel combustionhave been modelled. A special attention is then paid to the equilibriumconcentration calculation; this is a significant part of the model whichstrongly influences the following steps.A Simulink model has also been developed. This second version isbased on the previous model and it is made especially to allow theconnection with other external softwares, GT-power in this case.

This master thesis was a subtask of a project called EMIR-1. The goal with the thesis was tobuild a system for particulate mass measurements in one of the engine test cells at KTH. Theparticulate mass measurements are planned to be measured with a TEOM.The exhaust gases must first be diluted with air before the sample is sent to the TEOM.Therefore an ejector diluter for this matter also was designed and evaluated in the thesis.Emissions measurements have been done both with and without dilution to determine thedilution ratio. Tests have been done for different speeds and loads.Problems with stability of the dilution ratio have been an issue throughout the process andpressure pulsations in the exhaust pipe are believed to be the cause. More tests have to be done tomake sure that this is the problem.One idea is to make the inner diameter of the diluter nozzle smaller and see if it changes thedilution ratio stability.

The aim of this Masters thesis is to understand how librarians develop their reference service. The purpose was to find patterns in how librarians work with reference questions. As a theoretical framework we have used research in the reference field. Where do the skills of the search process come from: education or experience? Answers were sought to the following questions: - How different are the search process in practice compared to theory? - Which similarities and differences are there among the informants? - How important was the education in comparison to the knowledge about the libraries collections? - How did the changes in the school system in 1993 influence reference education and what could the consequences be to the reference knowledge among librarians? We sent out a question form and a search question which was answered by 12 librarians in university and university college libraries.

The aim of this thesis is to contribute to increased knowledge concerning students? information seeking in an electronic environment. Using a qualitative approach; focus groups interviews, a total of nine nursing students were interviewed in two groups. The interviews were transcribed and analyzed with an analysis tool based upon Lucy Kuntz?s, Gary Marchionini?s and Carol C Kuhlthau?s models of the information seeking process.

The theses discuss information seeking with a focus on Google and social networks. Students attending the librarian program in Lund have been examined by means of two methods; diaries and information horizons, where they had to solve a specific assignment. The information horizon as a method contributes to getting a structural perspective on the information search process instead of viewing information search as a procedure. Information horizons use social network analysis.The aim of the theses is to investigate the importance of the social network in information search, with a particular focus on Google as a search tool. Our hypothesis is that Google acts as a compensator to the social network when the students search for information and in the educational program.The research indicates that there is no direct correlation between usage of the social network and usage of Google.

I takt med att Internetanvändandet ökar på bekostnad av andra medier blir Internet alltviktigare som marknadsföringskanal.Att synas på Internet har tidigare främst åstadkommits med hjälp av så kallade bannerannonser.Numera finns det en mängd andra sätt för att kommunicera med sina kunder somtill exempel e-postmarknadsföring och marknadsföring genom sökmotorer.Av alla varianter av marknadsföring på Internet är sökmotormarknadsföring den marknadsföringsform som växer överlägset snabbast. Det finns två varianter av sökmotormarknadsföring: vanliga annonser i form av länkar som presenteras vid sidan av sökresultatet ochsökmotoroptimering. Sökmotoroptimering, som företrädesvis behandlas i den här utredningen,syftar till att ge webbplatser höga placeringar i sökmotorer som Google, Yahoo ochMSN Search.Eftersom sökmotoroptimering, även kallat Search engine optimization eller SEO, är en mycketkomplex verksamhet är det svårt för företag som vill köpa den här tjänsten att veta hur manskall gå tillväga för att få tag på en kompetent konsult. Vad som komplicerar saken ytterligareär att det har framkommit att många sökmotormarknadsförare har använt otillåtna metoder föratt ge sina kunder höga placeringar. Dessa metoder kan visserligen vara mycket effektiva menom det upptäcks riskerar både konsulten och kunden att bli utslängda ur sökmotorernasregister, även kallade index.

This master thesis states the following questions: Is it easy or difficult to retrive information from a mobile phone manual? How can the search process be described among user for a mobile phone manual? What similarities and differeces can be identified between users? Arhe there any variables that affect search performance such as reading skills or technical domain knowledge? Eight mobile phone users participated in an empirical observation and the scope was to find information in a paper version of a mobile phone manual according to given tasks. The results shows that some users has problems to retrieve information due to that the correct page in the mobile phone manual could not be located. The results show that the user is using several search strategies, for example the table of contents and the index, when trying to locate information. The results also revel that the user initiates multiple search steps before the correct information can be located.

The buying decision process describes how the consumer makes a purchase decision through a rational process (Markin, 1979) and an understanding for how consumers make a purchase decision can according to Sands et al. (2010) be obtained by increased knowledge for the information search process (the second part of the buying decision process) before a purchase. Today?s society offers great opportunity to obtain information (Rahim & Clemens, 2012; Bawden & Robinson, 2009) and by that there are in other words good opportunities for a rational acting by the consumers. However, there are factors working against that consumers act rationally and seek information prior to their purchases primarily in the form of the concept of information overload (Bawden & Robinson, 2009) which claims that consumers are limited in their information search because there is too much information but also other factors such as lack of time (Wood & Neal, 2009) and ability to find information (Slegers et al.

The purpose of this bachelor's thesis is to examine the information needs and behavior of Swedish theater students. The aim is to get an increased insight into how theater students search and use information as they create their character roles and also to examine how the information seeking is integrated in the creative process. The findings of this study have been made through qualitative data gathered from five interviews with six theater students who are studying at the Swedish Theater Academy. These students studied between autumn term of 2014 and spring term of 2015. To analyze the result of the interviews four different theories? have been used, Carol Kuhlthau?s information search process model, Lars Höglund and Olle Perssons model of four domains, Lars Höglund and Olle Perssons information search barriers and Tom Wilson?s model of information behavior.

Within telecommunication and routing of tra?c in IP-networks a protocol named?Open Shortest Path First? (OSPF) is widely used. This means that a server dealswith the routing over a network with given weights by calculating shortest paths touse for routing. If we assume that a desired tra?c pattern is given the problem isto ?nd out if it is possible to set the weights so that the desired tra?c pattern is apart of a shortest path graph.

A vehicle that carries a person sitting in a wheelchair has been rebuilt. The original vehicle was provided with a petrol engine, hydrostatic drive and a mechanical steering rod, making it noisy and hard to maneuver. The purpose with this project was to convert the vehicle to make it more environmental and easier to drive.A new design has been proposed where an electrical drive has replaced the noisy combustion engine and an electrical motor with joystick control has replaced the manual steering.The project was divided into two parts. One mechanical part where the construction of the drive and steering were to be decided. The other part involved programming the microprocessor and implementation of all the necessary electrical for the control system of the vehicle.

Authors: Patrik Jäverbo & Jon LindheTitle: Greener on the other sideLevel: Bachelor of JournalismLocation: University of GothenburgLanguage: SwedishIn later years the strict laws and policies surrounding cannabis use have been questioned around the world by several influential leaders, among them US president Barack Obama and former UN secretary general Kofi Annan. It has been argued that the ?War on Drugs? has done more harm than good and in some American states and a number of European countries the drug have been legalized or decriminalized. Everybody does not agree however, that legalization is the best course of action and in Sweden the emotions have sometimes run high in the discussions taking place in television shows and newspapers.The purpose of this study is to examine the image media portrays of cannabis; based on the theory that mass media is an important influence on the individual and the way in which he or she views the world. To put the result into a context the Swedish media image will be compared with the one in Denmark and Norway.

Företaget Rebtel ville ha en ny landningssida som riktade sig till internationella studenter. Denna sida skulle vara optimerad för målgruppen både gällande design och innehåll. En förundersökningen bestående av bland annat intervjuer med målgruppen, målgruppsanalyser och research gjordes därför. Förundersökningen bestod också av intervjuer med olika roller på företaget Rebtel för att få en inblick i olika arbetsrollers perspektiv och uppgifter under en sådan process. Med hjälp av förundersökningens fynd togs skisser fram och en landningssida utvecklades bland annat genom programmeringsspråken HTML5, CSS3, LESS, JavaScript, .NET och C#.