L?grangmatriskomplettering innefattar algoritmer som fyller ut saknade v?rden i en matris under antagandet att den kompletta matrisen ?r av l?g rang. Rapporten har unders?kt tv? olika algoritmer f?r l?ngrangmatriskomplettering, singular value thresholding (SVT) och nor malized iterative hard thresholding (NIHT), p? slumpm?ssigt genererad data och ett urval av databasen Netflix prize data. Rapportens syfte ?r att best?mma vilken av dessa tv? algoritmer som l?mpar sig b?ttre f?r komplettering av Netflix-datan och slumpm?ssigt genererad data. F?r att m?ta detta unders?ktes hur n?ra algoritmerna konvergerar till de kompletta matriser na i termer av bland annat RMSE samt hur l?ng tid det tar f?r de olika algoritmerna att k?ra givet olika parameterval.

This paper deals with a taphonomic study of contexts with osteological material of dog (C. familiaris L.) from the Mesolithic and Neolithic of Sweden and Zealand, Denmark. The general aim is to develop and test a method to try to understand the activity behind and define specific archaeological structures. My questions also regards to wether a taphonomic analysis of the material could be used to identify treatments as wrapping and contraction of the dogs, but also dismembering and other preparations of the body. The study focuses on the relation between the space of decomposition, disarti-culation of the joints, evidence of wall effect, cutmarks, weathering and signs of postdepositional arrangements.The analysis is based on contexts from the materials Hornborgasjön, Vedbæk, Skateholm I and II, Sjöholmen, Ertebølle, Bökeberg, Bredasten, Löddesborg, Bergsvägen and Röekillorna, dating from early Maglemose culture to Neolithic Battle axe culture.The analysis shows that a closer study of taphonomic processes can be used to identify different structures as graves, offerings, religious and non religious contexts or parts of animals, probably put into the ground as waste.

The main project Dry preservation of source-separated organic household wastes involves a new technique for treatment of biowaste through drying. Investigations are going on to determine how the dried biowaste best can be used to close the natural circular flow of nutrients. The objective of this degree project is to determine if the dried biowaste can be used as a soil conditioner. By restoring the nutrients in the material to the ground, the natural circular flow is closed. A declaration of contents, including the nutrient levels, C/N ratio, pH and the electrical conductivity of the dried biowaste, was constructed and a germination test was done to make sure that the material did not inhibit sprouting.

The purpose of this work was to provide a better understanding of urea?s decomposition and byproduct formation in an SCR system on heavy trucks. In my experimental setup with TGA-DSC-FTIR (a combination of two thermal analysis methods and a method for gas phase detection), an FTIR method for urea in the gas phase was developed for the qualitative and quantitative determination of urea and its decomposition products. Chemicals such as urea, biuret, cyanuric acid and melamine of p.a. quality were used in this method development. Beforehand, there was no FTIR method available to detect these substances; hence, the aim of this work was to develop an FTIR method to understand the degradation chain of urea. The combination of TGA and DSC was used for analysis of different samples, where urea, biuret, cyanuric acid and melamine in varying amounts have been weighted in for various experiments in order to study the temperature at which a phase transition or reaction occurs, i.e.

Högbytorp is Ragn-Sells? largest waste facility and it is located north of Stockholm. There is an old landfill still in use, but at the end of this year it will be closed. The waste deposited on the landfill can, through decomposition, give rise to a large amount of methane gas, which is an energy rich gas that can be used for heat and electricity production. To receive a relatively large amount of gas, the decomposition requires a high moisture content in the waste.

Projektet handlar om formgivning och konsumtion, om hur mycket vi förbrukar (varför) och om produkternas livslängd.Våra produkter är kanske mer miljövänliga nu än för ett par decennier sedan, men vi köper fler. På en kort tid har vårt sätt att konsumera ändrats oerhört.En förutsättning för vår konsumtion är att både material och arbetskraft är billigt, vilket är ohållbart i ett längre perspektiv.Materialen blir dyrare ju mindre som finns kvar, arbetskraften är bara billig så länge landet den finns i är fattigt.Som formgivare kan man känna en problematik i att formge "en sak till".I examensarbetet vill jag ta ställning till detta och leta efter lösningar.Hur vill jag arbeta som formgivare?.

The Uppsala based company Q-linea develops procedures, instruments and systems for protein and nucleic acid analysis. The components in such an instrument are controlled by microcontrollers. Microcontrollers are computers in one singular chip that can be used in a wide range of applications such as cars, toys or in this case an analysis instrument. When developing a new instrument for biochemical analysis, Q-linea needed new software for controlling and communicating between the components in the instrument. The process of developing this software is the subject of this thesis.The project included research of microcontrollers and the components in the instrument.

Stump biomass is energy rich and stump harvesting for use as fuel become more and more interesting in Sweden. Swedish Forest Agency (2009) has estimated that stump harvesting in Sweden would respond to an annual energy supply of 57 TWh/year. However, stump has not been recognized as a bioenergy resource in Sweden. Suitable methods for pre-treatment of stump are probably of great importance to make it accepted as fuel. It is therefore rewarding to carry out an investigation in this area for stump. This report represents results from a diploma project, which was aimed to develop a fixed bed reactor for experimental study of biomass torrefaction, followed by TG analysis and kinetic modelling employing Ozawa method and different kinetic models including one-step and three-pseudo-component models.

The aim with this study was to investigate mortality in older respectively younger beech stands (Fagus sylvatica), the different types of dead wood in the forest and the availability of coarse woody debris (CWD). The research was carried out in previously managed and seminatural stands in Biskopstorp and Frodeparken, located north of Halinstad in Halland,Sweden. Data were collected from 22 stands with at least 50 % beech and with a minimum age of 5 1 years, ranging in size from 0,67 to 19,9 ha. A transect was placed in each stand, in which the diaineter on both dead and living trees with a minimum diameter of 50 mm was recorded. On seven to 13 dead trees, depending on the size of each stand, decomposition stage, primary and secondary cause of death, amount of fungi and the type of the dead wood was noted.

How do men who define themselves as feminists create and maintain an identity as men? In this qualitative study four men involved in feminist organizations were interviewed about their views on women, men, sex and feminism. Theories of language, psychoanalysis and ethics were utilized to further our understanding of the material these men produce in their effort to define themselves. Our object of study is the text, which we believe holds the key to understanding how an individual shapes his world and himself. The result is our interpretation of the text and its underlying mechanics.

Constantly growing demands from the costumers in the Automotive industry forces the subcontractors to seek alternative ways to compete. One parameter of quality is the components tolerance against NVH(Noise, Vibraion & Harshness) aspects. Kongsbergs Automotive has developed a new gear shifter platform (Shift-by-Wire) that is sold to Alfa Romeo and used in of their car models. However, the company is not pleased with the components sound quality, therefore the main purpose of this thesis is to develope a number of concepts that is supposed to enhance these NVH-aspects.To get an understanding of the problem an analysis of the causes of the emitted sound has been done parallell to a product decomposition, function decomposition and a Ishikawa-diagram. Together with these methods has a litterature study been performed to get familiar with the physics of an impact and especially the emittment of noise.

How do men who define themselves as feminists create and maintain an identity as men? In this qualitative study four men involved in feminist organizations were interviewed about their views on women, men, sex and feminism. Theories of language, psychoanalysis and ethics were utilized to further our understanding of the material these men produce in their effort to define themselves. Our object of study is the text, which we believe holds the key to understanding how an individual shapes his world and himself. The result is our interpretation of the text and its underlying mechanics.

Syftet med studien handlar om att försöka förstå vilken betydelse trädgårdsmiljön har för människor som bor i bostadsrättslägenheter - ur ett hälsomässigt, estetiskt och skötselmässigt perspektiv. Framför allt handlar studien om att ta reda på hur medlemmarna använder sin trädgård och om den har någon hälsomässig betydelse. Studien ska undersöka hur de ser på utformningen av trädgårdsmiljön i sitt bostadsområde, samt hur de skulle föredra att ha den. Den ska också undersöka vilken syn medlemmarna har på skötselfrågan och hur föreningen valt att lösa skötseln av trädgården. Studien bygger på fem kvalitativa intervjuer med representanter från bostadsrättsföreningar som fått besvara frågor om medlemmarnas syn på sina trädgårdsmiljöer..

Enligt läroplanen ska alla elever bli tillgodosedda det svenska språket och dess uppbyggnad genom undervisning. Vi fann det då intressant att utforma en gemensam lektionsplanering som skulle varieras utifrån tre olika teoretiska positioner, socialkonstruktivismen, individkonstruktivismen och behaviorismen. Vidare valdes att utgå ifrån ett lärandeobjekt, substantiv med inriktning på obestämd och bestämd form, i singular och plural form. Dessutom ska studien visa hur elevernas kunskapsutveckling ser ut efter genomförd undervisning, det gjordes genom skriftliga tester. De tre elevgrupper som ingick i studien var elever i årskurs 2, årskurs 2-3 och årskurs 3.

The aim for this master?s thesis is to investigate the indexing consistency in a folksonomy Delicious. This is done by investigating how users construct tags. By applying a semiotic perspective and use analysis of content the occurrences of inflected forms, hyponymy, meronymy and users own tag creations were established. Lancaster?s seven factors is the starting point for the discussion about indexing and the factors that affects it in either a negative or positive way.