Denna studie avser att ta reda på om någon förändrad effekt kan fås gällande bränsleförbrukning och emissioner då dieselolja strömmar igenom ett magnetiskt fält innan det förbränns i en dieselmotor som driver en generator. Utrustningen som ger upphov till magnetfältet har tillhandahållits av ett kommersiellt företag. Studien består av två delar, en teoretisk del och en praktisk del. I den teoretiska delen presenteras tidigare vetenskapliga studier inom ämnet samt hur tillverkaren av utrustningen menar att tekniken fungerar. I den praktiska delen har tester gällande rökgasemissioner och bränsleförbrukning gjorts.

This report contains a degree project made by the mechanical engineering students Lennart Andersson and Daniel Jansson. The project has performed in assignment by SOMAS Valves AB in Säffle. SOMAS are leading in development on control and on/off valves. To maintain this position they always want to improve their products. One way in this development is valves that are more tightened.The purpose with our project was to investigate another seat design on a HiCo (High Cobalt Alloy) seat to a SKV 150 PN 25 valve and compare this to an original HiCo seat.By modifying the seat on a ball valve we want to achieve a valve that leaks lesser then a valve whit original seat.

The purpose of this thesis is to show how to use vulnerability testing to identify and search for security flaws in networks of computers. The goal is partly to give a casual description of different types of methods of vulnerability testing and partly to present the method and results from a vulnerability test. A document containing the results of the vulnerability test will be handed over and a solution to the found high risk vulnerabilities. The goal is also to carry out and present this work as a form of a scholarly work.The problem was to show how to perform vulnerability tests and identify vulnerabilities in the organization's network and systems. Programs would be run under controlled circumstances in a way that they did not burden the network.

Vid design av IT-system krävs en förhållning till de specifika egenskaper som finns i den miljösystemet är tänkt att användas. Även om användningen ser liknande ut krävs en detaljeradanalys av det specifika sammanhanget för att få en djupare förståelse för hur det verkligaanvändningsområdet ser ut. Det har visats sig uppkomma användbarhetsrelaterade problem vidförflyttning av ett system från en stationär miljö till en mobil miljö. Rapporten har undersöktvilka utmaningar som uppkommer när ett system flyttas från en mobil miljö till en annan snarlikmobil miljö och tar sin utgångspunkt i Ecodriving-lösningar för tunga fordon. En kvalitativundersökning genomfördes för att undersöka och identifiera de utmaningar som uppkom.Analyserat material låg till grund för framtagningen av en prototyp.

A baggy paper web has parts that are longer than neighboring parts. One of the assumed reasons for bagginess is thickness variations of the paper. In the roll the thicker streaks then add up to form a ridge. In the ridges the paper is strained and during storage the strain may become permanent. When the paper unreeled it is then baggy.

Coreträning består av statiska och dynamiska övningar för bålmuskulaturen. Syftet med studien var att ta reda på om det fanns ett samband mellan bålmuskulatur och balans samt om en träningsperiod med Coreträning kunde påverka balansen. En litteraturstudie har gjorts där åtta artiklar granskades. Dessutom bestod studien av en empirisk del där nio försökspersoner fick sin statiska och dynamiska balans testad före och efter en 4-veckors period med Coreträning. Som mätmetod användes unilateral stance test med NeuroCom® Balance Master® 8.03 och dynamic balance test med Biodex® Balance System.

Background: The Swedish population is aging [1] and malnutrition is a common problem among elderly people [2]. A method called food registration is used to monitor the patients? nutritional intake, with the purpose of reducing the risk of patients deteriorating in nutritional status during hospitalisation. However, the current method is not satisfactory and many food registration lists are incomplete. [3-6] Thus, patients do not receive a qualitative nutritional care since the assessment of the patients? nutritional status is based on incomplete documentation.Purpose: The purpose of this master thesis is to increase the quality in the nutrition monitoring process in the geriatric units B72 and B74 at Karolinska University Hospital in Huddinge, Sweden.

Syftet med uppsatsen är att besvara frågan om andraspråkselevernas ordförråd påverkar deras resultat i skolans matematikundervisning. Materialet i studien utgörs av tolv andraspråks­elever och tolv svenskfödda elever i årskurs 8. Jag har låtit eleverna genomföra ett test i tre delar; det första testet består av lästal, det andra av ordförståelse och slutligen det tredje av numeriska tal. Samtliga test hör ihop och testar på detta sätt elevernas förmågor på tre olika sätt. I studien ingår även en räknesaga, där eleverna själva får skriva ett benämnt tal.

Bakgrund: Test av syreupptag (VO2) kan fungera som en utvärdering av träningen för idrottare. VO2-test kan även nyttjas för att synliggöra anställdas eventuella hälsoproblem inom ett företag. Det finns idag en rad olika stationära och mobila utrustningar som mäter syreupptag (VO2), koldioxidproduktion (VCO2) och minutventilation (VÉ). Ett exempel är Jaeger Oxycon Mobile, bärbar VO2-utrustning, som kan användas i idrottarens eller arbetarens normala arbetsmiljö. Det finns idag inga publicerade studier där validiteten hos Jaeger Oxycon Mobile har testats.

 This essay aim to clear the regulations that adjusts the use of non-compete clauses in contracts of employement. The historical developement shows tendencies that more employees have contracts that includes non-compete clauses. This developement does not always correspond with what is allowed concerning these clauses. Non-compete clauses is adjusted by the regulations in the collective agreement known as the agreement of 1969. The agreement has also been accepted outside its regular field of application.

 This report is an evaluation of Peab's purchase and call-off system, PIA.PIA is used to order goods for Peab's construction sites. The background to the work is that users of the system have understood the system cumbersome to use when purchasing goods for construction sites. The evaluation was carried out by the interviews and tests with users of the program, in this case, supervisors and site managers at the company. Ten users of the system were interviewed and eleven people have carried out a test order.The focus is primarily on the test order that users have implemented, which has been clocked and analyzed for time and cost. The evaluation is also a user analysis concerning how the users perceive the program, mainly in terms of usability, functionality and benefits.The result of this report shows that PIA is economically profitable to use for the purchase of goods for construction sites.

The purpose of this master thesis was to examine how the corporations quoted on the A-list on the Stockholm Stock Exchange were affected by the introduction of IFRS 3 Business Combinations. Their opinion about the accounting rule and the acquired goodwill in particular was focused as well. The authors wanted to see if there were any changes in ROE, return on equity, after the introduction of the new accounting standard.Data for this study was collected through interviews, questionnaires and annual reports. Interviews were held with corporate accounting managers of Assa Abloy, WM-data, Electrolux, Ericsson and SCA. Questionnaires were sent by e-mail to 50 companies and were answered by 30 of them.

In today?s society we depend on technology to perform the simplest tasks. Whether we are engaging in conversation with a friend or are navigating in traffic, we are likely to be found with some technological device in our hands. This dependence has grown over a period of time, and many of us have failed to reflect on the impact technology has had on our lives. The emergence of so-called One-to-One projects, where teachers and students gain access to a personal laptop, does however provide an excellent opportunity to do so.

Sleep is a vital part of life. Even so a lot of the mechanics regarding sleep is unknown. The dairy cattle of today live a stressful life, as their high milk yields forces them to eat large amounts of feed and spend a great portion of the day ruminating. Do they have time to get enough sleep? Which factors affecting the need of sleep in dairy cattle are largely un-known.

SummaryI have a great interest in bouzoukis and since I, during my education in guitar making, mainly have focused on building bouzoukis and other traditional folk instruments, I have chosen the bouzouki as the object of my degree project.In connection to the making of these instruments, I started to consider the construction of the bouzouki and why the bouzouki has such a characteristic sound.One of my theories is based on the fact that most bouzoukis are made with floating bridges instead of glued pinbridges. Do these types of bridges differ from each other tonally and if so, how much and in what way?To receive answers to my questions, I have built two identical bouzoukis with different types of bridges, one with a glued pinbridge and one with a floating bridge. I have been very precise in the making of these instruments, giving them the exact same dimensions and using material from the same piece of wood. This to make sure that the instruments should be as exactly alike as possible.After finishing the making of the bouzoukis, I arranged for a sound test where I let musicians play and listen to the instruments.