The Homogeneous Charge Compression Ignition (HCCI) engine is promising in terms of lowNOx, low particulates and high efficiency. Due to its homogeneous charge, where thecombustion starts almost simultaneously from a number of points in the combustion chamber,only lean mixtures are possible to burn because of the resulting rapid combustion, which is muchfaster than the combustion in an SI-engine or a diesel engine. When richer mixtures are used thecombustion will start earlier and also be more violent.To phase the combustion later and lower the combustion speed, external cooled EGR can beused. The EGR-system used in this thesis uses a divided exhaust channel where one channel andits corresponding valve are used only for transporting EGR back to the intake system.Consequently the EGR-valve is connected to the intake pressure. This system is called Direct-EGR (D-EGR).Engine tests verified that the CA50 indeed is phased later when cooled EGR is used.

Reliable methods to analyze food for the presence of almond are important ? not only for those allergic to almond, but also for monitoring the compliance with labelling regulations (EG directive 2003/89). Until now the Swedish National Food Administration has used methods like rocket immunoelectrophoresis and real-time PCR to detect almond in food. These methods are, however, not sensitive enough for protecting the most sensitive individuals. Therefore, the performance of a commercial ELISA kit was tested with regard to specificity/cross reactivity and limit of detection for almond both in solution and in different matrixes.The limit of quantitation was at least 3,1 ppm (mg/kg) in solution and similar concentrations were measured in bisquits and chocolate.

An increasing number of automotive supplier companies are investing in Central and Eastern Europe (CEE) in order to gain cost advantages. This has happened in a rapid pace since many of these countries did not have any foreign direct investments (FDI) at the turn of the century. The problem now is for how long these countries will be able to maintain the low costs. One purpose was to create a model of country advantages for automotive supplier companies when relocating further production to CEE. This dissertation was written in cooperation with the Trelleborg Group.

This thesis aims to examine the possibility of understanding social change by using new institutionalism approaches on a specific case, The case, which describes the implementation of new public management reform in the Swedish health care system, is analysed from two separate new institutionalismperspectives; the tool perspective and the symbol perspective. These approaches differ from one another in the sense that the first relies on a rational choice ontology, while the latter rather refers to a sociological tradition. In the analysis, causal explanations as well as aim related explanations are presented. Formative moments such as economic stagnation, non-socialist governments and ideological isomorfism are presented as important factors behind the reformation. By using the tool perspective, the motives of the idea spreading and reformation of the Swedish health care system, are connected to a strictly rationalbasis such as cost efficiency and quality improvements.

In this thesis I try to find ways to be more independent and conscious in my interpretation of the music which I am playing. To be able to be more sure of myself and my own decisions I try to find methods on how to achieve this. The methods includes reading articles about interpretation, interviewing musicians and interpret and perform music. The pieces I have chosen are a solosuite by Max Reger, a concerto by Georg Philipp Telemann and a clarinet sonata by Johannes Brahms. I made some concerts where I try to achieve my goals.

In this thesis a number of energy saving methods for a multiplier on algorithmic level are investigated. For the investigation a multiplier is constructed in VHDL, after which the circuit's performance is investigated. A number of techniques for reduced power consumption are introduced in the circuit and are then evaluated. The conclusions are that all investigated methods, pipelining, interleaving and voltage scaling, should be maximally made use of in order to minimize the power consumption..

Title: How can everybody learn to sing? A study about methods for meeting students with poor singing abilityI have based my work upon the question if everyone can learn how to sing. This study investigates the physical and psychological impacts that singing may have upon us and examines methods that can be used intuition. Concepts such as tone-deaf, amusia, poor pitch singing and monotones are discussed, and the expression ?sångsvag? ?singing weakness?) is put forward.

A game designer has to consider several aspects when he or she is designing a game. One of those aspects is the perceived freedom in the game by the player. There exist several methods to facilitate this perceived freedom in the design phase of the game. This thesis presents, in a qualitative methodology, a number of these methods a game designer might utilize to give the player a heightened sense of freedom for an improved gaming experience. Included herein are such elements as indirect control, linearity, storytelling and level design..

This report was performed in order to evaluate a new technological measure and focuses generally on a heat pump system to a HWC-washing machine. The client is Asko Appliances AB, a company well known for its environmentally friendly products. The goal of this study was to improve the energy efficiency of a washing machine by combining a heat pump device to the heater of the wash water, in order to reduce the energy consumed for heating the water. Besides reducing the energy consumption in heating the water, the washing machine was required to meet low noise and short operating time specifications. For that purpose, nine trials in three test series have been carried out.

What role does the state play in economic development? This thesis seeks to investigate the relationship between a strong state and economic development. To define the concept of a strong state I focus on the relationship between the scope of state functions and the efficiency of which these functions are implemented. The concept of a strong state is in this thesis defined as the efficiency of the state functions. By using a database constructed by three economists; David Kaufman, Aart Kraay and Massimo Mastruzzi as a measurement of a strong state I test the relationship with economic development empirically.

There are several different methods of assessment of functional communication in individuals with aphasia. However, these are not very established in Sweden. A number of assessment methods are not translated and adapted to Swedish. The views about what functional communication means are scattered. The purpose of this study was to, with the help of a questionnaire survey, identify how Swedish speech and language therapists assess functional communication, to what extent and what they want that an assessment method should contain to be clinically useful.The study involved 54 clinically active speech and language therapists in the area of aphasia.

Previous research in the field of consumer marketing has confirmed the positive effects of divergence on advertising efficiency. Despite the coherent evidence, some industries lag in the adoption of these findings, one of which is the Swedish real estate market. Divergence has not been elaborately investigated within said context and this paper addresses the need of actionable insights for housing advertising. Starting with the proven success of housing firm Fantastic Frank who work with detail photos in contrast to the common wide angle, this paper examines theoretical implications of detail photos' characteristics. Besides being divergent, detail photos are also ambiguous which renders access to effects related to visual perception.

Vattenfall Heat Uppsala runs the waste incineration plant in Uppsala, which produces district heating, process steam, district cooling and electricity. Vattenfall Heat Uppsala has decided to introduce an energy management system with the aim to increase the energy efficiency of the plant. The basis in such a system is to make an energy mapping.In this thesis an energy mapping has been performed at the waste incineration plant with the aim to identify and determine the size of energy flows. The investigated energy flows are used fuel, produced and used steam, produced district heating and cooling. Also the use of electricity to run the processes has been investigated.

Business Intelligence may help organizations in making the right decisions byproviding data for analysis which can be presented to decision makers. DataWarehouse which is a central part of Business Intelligence can be built in severalways but the methods presented by Ralph Kimball and Bill Inmons are considered thetwo main methods. The solution provided by Inmon focuses on integrating the entirebusiness into one large database using relational database development. Kimballhowever proposes dimensional database modeling by creating one or more data martsand integrating these using a data bus. Previous research has shown that the quality ofa Data Warehouse can be measured through critical factors such as data quality andsystem quality.

Introduction: Mental illness is a public health issue which 20-40 per cent of the inhabitantsin Sweden suffer from. Many factors can lead to mental illness and because of that it isimportant that different organisations and professions collaborate in prevention and healthpromotion work. To develop the collaborative process by noticing difficulties and successes,documenting, follow-up and evaluation is of great importance. Aim: The aim of this literaturereview is to investigate which methods are used for evaluation of health promoting anddisease preventive collaborative projects, which focuses on mental health directly orindirectly, and find out what results these projects has revealed. Method: Literature reviewwith descriptive design.