The global Positioning System (GPS) provides location and time information as long as there are unobstructed lines of sight to four or more GPS satellites. However, when this is not the case the signal may be inaccurate or sometimes even completely blocked. In these situations the Inertial Navigation System (INS) is an appropriate choice for positioning.  An INS has already been proposed in a previous thesis by Erik Andersson and the objective of this thesis is to fuse the GPS with the INS in a proper way. A part of this project is to decide the reliability of the GPS.Three methods for GPS reliability detection have been proposed. One method based on the statistical properties of each of the separate systems, and two methods based on the statistical properties of the residuals between the GPS and INS.

The purpose of this study is to investigate the effect of using more promotion material to enhance the in-store communication of sales promotion. In the retail industry today the research regarding the benefits from using various in-store promotion materials is limited, thus this study was carried out to bring clarity to this subject. The study is carried out in two pharmacies and the design of the study was to add more promotion materials to one store, while keeping the other store in its normal condition and then let the stores change conditions after one week e.g. latin-square design. The data collection of this study consists of four different methods: sales data, a questionnaire with 182 customers, an observation study of 300 consumers and an eye-tracking experiment with 41 participants.

Sociala medier ?r en del av dagens ton?rskultur, d?r Instagram, Snapchat och TikTok ?r de popul?raste apparna bland barn och unga. Forskning visar att anv?ndandet av filter p? sociala medier genererar m?jligheter att (om)f?rhandla sin identitet samt att anv?ndandet kan leda till att unga utvecklar orealistiska kroppsideal. F?r att f? en ?verblick ?ver f?ltet g?rs en strukturerad forsknings?versikt.

The following essay aims to determine what textbooks and teaching media educators in the county of Västerbotten use when teaching the relation between religion and science. Based on educational science theory and through analyzes of factual texts, the teaching materials was examined to determine how much focus they put on the thematic of religion and science. The result shows how the different teaching materials affect this thematic differently. The main conclusion is therefore that students in Sweden could, depending on the teaching materials used in their education, be taught by different standards to reach the same requirements..

The physical environment is constructed of materials. The materiality of different places contributes to how places can be distinguished and the material can contribute to the construction of place identity. For architects with different orientations the material is one of the principal means by which they can express their idea. The material remains when the design process is finished and instead the material becomes a precondition for how people will perceive and deal with the place. The literature study of the essay examines how the concept of place and materiality is dealt with in different disciplines and how these descriptions are linked to the concept of place identity.

Simulations of simulink models using Kalman filters are often very time-consuming. This problem depends mainly on the fact that the Kalman correction has to be performed at each sample instance through the whole simulation. The goal for this thesis work is to reduce that time-consumption for the filtering part (the integration partis treated in a complementary report) of a simulation. Furthermore a Matlab routine to perform parameter tuning and finally a graphical user interface is developed.The filtering part of the simulation in this thesis is based on an Extended Kalman Filter (EKF). The time optimization of this filter considers searching for the possibility to replace the today?s existing Matlab functions that is used to perform the filtering calculations.

In this project a method used for performing accurate simulations on magnetization dynamics based on constrained field density functional theory has been validated and used for performing computations on a few magnetic materials. The method has been shown to simulate systems consisting of iron well, but there are still problems with simulations of alloys containing both magnetic and non-magnetic materials..

As demand for renewable energy is increasing rapidly, the market for biomass pellets is expected to continue to grow in the near future. Most of the new raw materials that are discussed for pellet production have one thing in common; the production costs will increase compared to using traditional raw materials such as sawdust and planer shavings. The aim of this thesis is to investigate to what degree increased use of new raw materials for pellet production will affect the general pellet prices in Sweden and to survey what plans Swedish pellet producers have concerning new raw materials. To investigate the raw material situation of the Swedish pellet producers an industry survey was performed. Literature studies were also made on previous research in the subject field. Calculations of the production costs for pellets were done for the raw materials sawdust, wet sawmill chips and energy wood respectively. New raw materials are already used by the large-scale pellet producers in Sweden.

The aim of this study was to investigate and compare the availability of construction materials affect children's constructions and play. Observations were made when the children were allowed to play and build with very little and much of the material play-doh dough in preschool. The study is aimed at children aged 3 ? 5 years. Interviews were also conducted with educators in departments where the children spent time to give support to this study.The result shows that the children create as many designs of any material amount.

I?ve been working with traditional materials such as ceramic sculptures and oil oncanvas. By using these traditional materials I can bring in more lowbrow aesthetic suchas package design, illustration, toys, animations, comics etc. and transform it to somethingdifferent.Using this aesthetic and techniques became a way for me to communicate everydaythoughts on life as well as my most inner thoughts on how I think about myself.This report is about how I?ve been using these components to realize my master degreework for the Spring Exhibition at Konstfack in Stockholm, 2014.This report also extend my process of getting there..

Vår uppgift är att undersöka om vi kan förbättra utsignalens kvalité från ett digitalt TV-kort genom att översampla A/D-omvandlare. Vi kommer att programmera vår kod i en FPGA och i den finns enbart 3 stycken multiplikatorer lediga. Utgången från vårt filter ska ha samma frekvens som innan översamplingen, vi kommer därför att bygga ett FIR-filter som decimerar signalen. Vi valde detta filter för att kunna utnyttja symmetri och minimera antalet multiplikatorer. Vi använde ett filter med ordningen 44 vilket ger 45 koefficienter.

The purpose of this study was to examine the use of manipulative materials in mathematics education with the main focus on grades 4 to 6. With the use of a phenomenological approach all the aspects of this phenomenon was examined. Qualitative interviews, participant observations and comparative content analysis of textbooks has been conducted to investigate the use of manipulative materials in mathematics education. The results indicates that the teachers that were interviewed possesses good knowledge of this teaching method. However these teachers struggled to find time to put this method into practice and there was not enough teachers to attend these classes.

The aim of this study is to establish an understanding of how the concept educational materials can be interpreted, as well as to investigate how teachers describe their use of educational materials. The focus of this study is the subject ?Sign Language for the hearing?, at the upper secondary level. We, the authors of this essay, both have a great personal interest in this language. Swedish Sign Language is the sign language mainly used in Sweden.

Målet med detta examensarbete var att utveckla en fungerande prototyp för styrning av ett portabelt filter med varvtalsreglering och tidräkning. Om möjlighet fanns, skulle även tillval som tryckstyrning, gasindikering och flödesmätning göras. Dessa tillval kunde regleras med hjälp av fyra knappar. För att allt skulle vara lättare att hålla under uppsikt, kunde alla inställningar och värden ses på en LCD-display. Konstruktionen består av en mikrokontrollerstyrd elektronikkoppling med extern realtidsklocka för drifttidsräkning.

Phosphorus is the single most potent contributor to eutrophication of freshwater and has also been shown to contribute to the toxic algae blooms in the Baltic sea. The dynamics and paths of losses of phosphorus from arable lands are not fully understood. It is known that phosphorus can be lost directly from plant material to water. In studies where plant material has been subjected to several freeze-thaw cycles, large amounts of phosphorus have been lost. Most studies have been conducted under field conditions, with many factors effecting the measured losses of phosphorus, such as weather and type of soil. This study was performed in a controlled environment without the presence of soil. Instead of soil, small glass beads were mixed with the plant materials in vessels, to make possible homogeneous leaching with water through the mixture of glass beads and plant materials. In this study, clover, ryegrass and dry straw were cut to pieces, approximately 2 cm long.