This master thesis has been performed at Sectra Communications AB in Linköping where they manufacture electronic encryption devices. In cryptology it is essential that an eavesdropper cannot find the plain text. To assure that a system is safe, all devices are thoroughly examined so that they don?t emit any secret information, so called Compromising Emanations (CE). This is done by comparing the secret signal with measured signals on the screen of an oscilloscope, a process that is very time consuming and furthermore, the risk of missing compromising emanations is high.

Scania?s discount rate - the return requirement of investments - refers to Scania?s WACC or weighted average cost of capital. The capital markets return requirement on equity and the credit market interest cost of borrowing is weighted to become the single discount rate, the WACC. The purpose of this study is to investigate which asset pricing model of APT and CAPM Scania should use in their WACC calculations. The company now uses a group WACC of 11 percent which is used in all company levels.

Forest biomass is becoming an increasingly important source of renewable energy, and thereby the demand is increasing. There is currently 213 000 km of forest roads in Sweden that could be suitable for biomass harvesting. Harvest of biomass along forest roads both provides biomass and maintains the quality of the roads. Currently, the volume of biomass along roads can only be assessed post harvest, chipping and industry deliverance. As the decision of whether or not to harvest should preferably be based on more than experience, the TJ-method has been proposed. The TJ-method is a subjective method to quickly determine the dry matter quantity with the assessment being conducted from the roadside.

The purpose of this study is to examine how two different primary schools with the same school management district work with daily physical activity. We have chosen to conduct our investigation based on interviews. Through the interviews, we can highlight the teacher´s and principal´s interpretations of the concept regarding physical activity and find out the school´s arguments and working methods for pupil´s physical activity. These two schools work with physical activity in two different ways and the study describes the teacher´s and principal's choice of approach. Since our training is directed towards the younger ages, school years 1-3, we chose to interview teachers who work in these classes.

In conjunction with today?s increasing competition within the construction sector, more pressure is being placed on building contractors. Efficiency and improvements are necessary but without impairment to an ergonomic and safe construction site. This in is in order to reduce the construction costs and time but to retain the ability to deliver a high-quality contract.Various methods and prefabrication degrees are used, depending on the project's requirements and conditions. This analysis sets out to investigate and exhibit what qualifications are important when choosing a construction method for curtain walls.Advantages and disadvantages with each method have been analyzed and recommendations have been given to show when different methods are best suited.

Problem: In society of today corporate competence is an important factor for survivor and development. IT is developing rapidly and can not be ignored by companies. Then need for people with IT-competence is conquent increasing. A survey of corporate IT-competence is therefore of interest for companies as well as for local authorities. To determine the IT competence within an organisation, this competence has to be measurable.

PURPOSE: To investigate to what extent product brand positioning models can be used to analyzecorporate brand positioning;METHODOLOGY: The phenomenon is observed from a positivist epistemological position within a primarilyinductive research design. The research strategy is defined as qualitative, while the method of ethnographiccontent analysis is implemented to analyze primary data;THEORETICAL PERSPECTIVE: Product and brand positioning literature; Product brand positioning rhombus;EMPIRICAL DATA: Ethnographic content analysis of brand commercials;CONCLUSION: As shown by the extensive literature review product brands (PB) and corporate brands (CB) coexistin corporate environments. One of key insights of this study shows that product brand positioning(PBP) and corporate brand positioning (CBP) processes can also co-exist in the same corporate environment.Moreover, PBs can be built based on the CB, making the investment in CB a long term return on investment.The study also observes that PBP messages include the ?against whom? attribute, highlighting differentiationin the competitive environment; when on the corporate level, this evolves, and in some cases becomes quitethe contrary, when the concept of ?from whom? or ?by whom? is stressed more than the differentiation amongother CBs in the competitive environment. This stresses the importance of including brand identity elementsin CBP..

Background: Due to an increasing globalization the competition has increased and this has lead to overcapacity and falling prices on markets today. The subject field logistics has during the last decades been given increasingly significance and has become a way to handle the competition. Theories clearly point outthe importance that a concordance exists between logistics and superior strategy but few, if any, authors give further details about how this adjustment should be made. Purpose: The aim of this thesis is with a case study approach survey if the subject field, which describe the importance that logistical solutions correspond with the superior strategy, is known and implemented in a company. We aim to develop the subject field through our empirical findings.

Amongst the published literature researching wet cleaning of paper there is a limited amount of studies conducted researching the method simmering water treatment. There are even less studies conducted on how simmering water affects the paper being treated when used as a cleaning method. Despite the limited research, there are literary reviews describing the method and suggesting it as an alternative for conservation of paper with iron-gall ink. The following study will therefore be examining, the somewhat unusual method, simmering water treatment, and comparing it to one of the more common wet cleaning methods: immersion washing. This is done to compare how the different temperatures of the water affect the paper. The types of paper used in this study consists of three dyed and four undyed papers. All of the papers are new, apart from one sample originating from 1847.

The aim of this essay is to examine why and how three teachers who work in elementary classes choose to use ability grouping during math lessons and what they think of ability grouping as a method to individualize the activities according to the pupil?s needs.I chose one main question for this study that is the following:What is the teacher?s point of view and experience of ability grouping in teaching mathematics?And three sub-questions:What are the motives behind the choice of ability grouping?What are the advantages of ability grouping?What are the disadvantages of ability grouping?In order to be able to answer my questions, I used the qualitative method. I interviewed three teachers who work in the elementary classes (First to fifth grade) to find out what they think about ability grouping and how it is experienced in mathematic teaching.The result shows that the common thing between these three teachers is that they don?t use ability grouping as the only teaching method. They all agree that the whole class teaching has many benefits for the pupils.

The right kind of democracy ? an ideology analysis of school literatures description of the term democracy.Writers: Fredrik Hedlund & Mattias AhlqvistDemocracy is today a word and a concept that in many ways is taken for granted and almost never is reflected on. The concept democracy is also considered as an essential issue in the swedish school system, both regarding the way the education should be managed and also as a part of the students democratic schooling ? all according to the comprehensive document Läroplanen för de frivilliga skolformerna (Lpf94).The main purpose of this paper is to investigate how swedish literature in political and social science talks about and looks upon democracy ? what do the books say it means?The materials we have chosen for this report are the books Zigma and Forum. As metod we are using a textual ideology analysis in which we have created three dimensions ? meaning/associations, criticism of democracy, and demos/citizenship.

This thesis is an investigation of Iranian immigrants and their use of libraries in Sweden. It isbased on a combination of a qualitative and a·quantitative method.Using a qualitative method, I give an outline of the history of lran from ancient times up to the present, as well as the different ethnological groups in Iran and their cultures. The main objective of this part is to clarify the contrasts between Iranian and Swedish cultural, social, linguistic and family structures, and also the characteristics of the crisis that most immigrants go through on their arrival in the new country. The qualitative method also involves structured telephone interviews with eight highly educated Iranians.This method was supplemented by a quantitative study through questionnaires of the attitudes· of lranian immigrants to libraries and reading. Iranians in Sweden turned out to be frequent Iibrary users.

Wavecraft AB develops medical equipment for heating of organic synthesises. The heating is done with microwaves, which improves the process in both speed and accuracy compared to the more traditional methods where heating elements are used. This report discusses the developement of an automatic lid mechanism for one of Wavecraft's product prototypes. The company assumes that the final product will be integrated by customers into fully automated systems, and the upgrade from a manually to an automatically controlled lid is therefore an important step in the product's developement process.The first stage och the project was an idea generation process. The ideas generated here were organized into five different concepts of which the best one was selected through the use of a concept matrix.

The aim is to examine teachers own experiences of leadership, leadership styles and what good leadership is and to find out how teacher leadership can influence students according to teachers. My questions are: How do teachers evaluate leadership and their own leadership styles?What is good leadership according to teachers?How can the teachers leadership styles affect students in the classroom according to teachers?The method used is a qualitative method based on interviews with five teachers. The reason why I have chosen a qualitative research method is that I believe that this method can give me better results by understanding the world from the interviewees? point of view.I have come to the conclusion that the interviewed teachers believe that leadership and management style play a large role in the teacher's profession and that the teacher's leadership style in the classroom democratic or authoritarian have a major impact on students. The teacher should consider his management and find some sort of balance by exercising both democratic and authoritarian leadership style and adapt it to the situation. And In terms of results regarding good leadership of the interviewed teachers, I can say that good leadership is largely about good relationships between teachers and students and that a teacher can become accepted as leader by winning students confidence..

Although  ?naming and shaming? paedophiles are growing in Sweden, professionals working with the rehabilitation and treatment of paedophiles describe that the naming and shaming might not prevent child sex abuse. On the opposite naming and shaming alienates the perpetrator from any ordinary life. The alienation could lead them to only having other paedophiles as friends. Previous studies show that professionals are often distancing themselves from working with paedophiles, even if there is competence.