AbstractSystem methodology is in the very heart of system development, it is a crucial part of how you define your work, how you choose to approach the actual problem at hand and how to solve it. Researchers in the system development field has shown that not all methods in theory are in compliance with how it is practiced by the companies who use them. In our thesis we have studied a larger international IT- company and one of their local offices in Sweden, who some years back changed their system development method from a more traditional to an agile one. Our aim of this study has been to establish whether both of these methods has differed between theory and in actual use, and if so, why this has occurred and what the underlying rationality might have been to promote this change. Our questions that we sought to answer were; 1.

This thesis concerns partial discharges in stator windings and the possibility of analyzing data using statistical methods. Partial discharges, or PD, are a physical phenomenon in which discharges occur locally due to large electric fields. PD can occur in or adjacent to the insulation of stator windings and causes breakdown of the insulating materials. PD measurement can provide an idea of how widespread the PD activity is. A technique to measure and analyze PD that has become very popular over the last few decades is phase resolved PD patterns.

AbstractThis study investigates the impact of storytelling for children's language development in preschool from a sociocultural perspective. The purpose is to find what narrative methods teachers use to promote children's language development. I also want to examine whether the children are involved in the storytelling. To get answers to my questions which include what methods teachers use, narrative meaning and function, and their children's participation, I have used qualitative interviews with four preschool teachers at four different preschools.The results of my survey show that teachers use a variety of methods at storytelling. The most common methods were reading, rhymes and daily storytelling while eating.

This study explores the effects of two different post-treatment methods on stain reduction in glazed creamware from the late 20th century. The objects stains have been characterized by type one and type two stains which is the result of prolonged contact with food residues, were subjected to the same initial stain reduction. The two post-treatment methods examined are soaking the objects in deionized water and surface rinsing with deionized water. The comparative analysis included photographs under normal and UV-light exposure to assess stain visibility, weight measurements before and after treatments to monitor the absorption and evaporation of liquids, and observations throughout the experiment. The results revealed that while type two stains showed significant alterations after treatments, specifically after soaking, type one stains remained unaffected by both methods.

AbstractBackground The importance of establishing well-functioning parent-teacher relationships are clear objectives in the Swedish National Curriculum for Preschools, (Lpfö 98, Lpo 94 & Lgr 11 chapter 1-2). Parental involvement in preschool activities is seen as important for several reasons. Facilitating healthy child development, learning and socialisation are some of these reasons. During the past twenty years Sweden has become a multicultural society. Today, people from more than 170 countries live in Sweden, and about 18% of the population are first or second generation immigrants.

The aim of my study is to examine how six teachers discuss their choices of work methods in teaching mathematics, as well as the methods they are currently using and what they have based their choices on. This study also covers how these teachers approach educational planning and where they get inspiration for their teaching material, and finally the advantages and disadvantages of each method according to the teachers. To be able to fulfill my purpose of this study some questions had to be considered: How do these teachers approach the planning of studies of mathematics and where do they find ideas for their lesson planning? Which methods do these teachers use in the teaching of mathematics and what are the reasons behind their choices of methods? Which advantages and disadvantages do these teachers see in the methods they use during the teaching of mathematics? This is a qualitative study, mainly based on qualitative research interviews according to an interview guide. Six teachers, from five different elementary schools, grade 1- 3, have been interviewed for this study.

Today there are various methods to use when euthanizing horses. Earlier the use of free or captive bullet was the most common method, but in recent decades this has changed and chemical euthanasia is now considered the most common method. The chemical euthanasia has in Sweden been dominated by the use of barbiturates. Somulose® entered the market in the beginning of the 90?s as an alternative to previous chemical euthanasia.

This research is conducted on one of the world?s largest deposits - Shtokman gas and condensate field located in the Barents Sea. The development of the field is operated by the Special Purpose Company Shtokman Development AG - the international consortium of Total, Statoil and Gazprom. This research is aimed to analyze the value chain of the Shtokman project and to study the socio-economic capacity of the Murmansk region in order to examine the perspective fields of work for local companies, as well as the socio-economic potential of the region related to the gas industry that can be applied to the realization of the Shtokman project. The research is based on qualitative and quantitative data collection that involves the results of 24 semi structured interviews conducted in the Murmansk region, including the interviews with representatives of the Shtokman Development AG and the industrial committee of the Murmansk region government.

Within the literature and film sciences there are clear models of storytelling and methods of creating a good story. In the game industry it's more difficult because the games are often non-linear, and games are a less established medium than the other two. With this study our purpose was to examine game developers and methods they used when creating a videogame, with focus on storytelling. Four interviews were made with representatives from four different videogame companies in Sweden. The information from the interviews was put in relation to theories regarding the structure of videogames and an established model for creating videogames.

Communication is a part of everyday life. The more sensitive information we handle, the more interesting the question around security of your information becomes. There are two ways of handling security around the information you want to communicate, either you control the means by which you are communicating. Or you control the way you communicate, making you able to use existing communication channels. Existing methods within cryptography enables two parties to communicate information securely.

This report describes a study of two different methods to achive the best possible result in setting out apartment details. These two methods are the setting out of details with a measuring tape from baselines and the setting out procedure with an instrument (totalstation).Through our knowledge in surveying and mapping technology and help from a carpenter, this investigation has been implemented. The setting out using a tape has been performed by letting the carpenter to set out windows, bathroom and water- and drain-details from baselines and drawing. The setting out using a surveying instrument was carried out by means of a Trimble Total Station. These two methods have been compared in order to detect and show the difference that occurs.The report shows the investigation background story from the practice of Swedish Mätcenter in Karlstad.A result of differences in accuracy and time is described in the report, as well as their theoretical consequences.

The poultry red mite, Dermanyssus gallinae, is a common problem in poultry facilities, causing great discomfort for the hens and effecting the production economically. Few efficient acaricides are available and there is a need for new control methods since resistance has become a problem in some cases. The aim of this study was to evaluate the efficiency of the new liquid silica control agent Ectopar, on the poultry red mite. An initial in vitro test of Ectopar and its two components individually was performed, where live mites were sealed in together with filter paper impregnated with one of the three solutions prepared. The survival of the mites was thereafter recorded repeatedly during a period of 120 hours and compared to a control. For the field study, two poultry farms with different housing systems were used, one with furnished cages (farm 1) and one with a single tier floor system (farm 2).

The purpose of this report is to evaluate different methods for identifying states in robot models. Both linear and non-linear filters exist among these methods and are compared to each other. Advantages, disadvantages and problems that can occur during tuning and running are presented. Additional measurements from accelerometers are added and their use with above mentioned methods for state estimation is evaluated. The evaluation of methods in this report is mainly based on simulations in Matlab, even though some experiments have been performed on laboratory equipment.The conclusion indicates that simple non-linear models with few states can be more accurately estimated with a Kalman filter than with an extended Kalman filter, as long as only linear measurements are used.

In this master?s thesis the problem of simulating conditional Bernoulli distributed stochastic variables, given the sum, is considered. Three simulation methods are considered, namely the acceptance/rejection technique, Bondesson?s method and the Markov chain Monte Carlo method.To compare the three methods the bias and the standard deviations of the simulated variables are evaluated. The results of the simulation study shows that the Markov chain Monte Carlo method is not the best method for this type of simulation.

Operators and Internet service providers invest in broadband to be able to deliver new services that require higher data transmission rate. A way to make this possible is to use ADSL, Asymmetric Digital Subscriber Line, as the access technology. To be able to handle this technology, the service providers should do a pre-qualification. Methods and tools are needed to analyze the local copper lines and decide if these qualify for ADSL with respect to service availability and possible bandwidth through the lines. This report brings up some methods for pre-qualification of ADSL, the important quality parameters and how to gather them from the available services today.