The aim of this thesis was to answer a number of questions about the environmental consequences of aircraft de-icing. A further aim was to suggest how the environmental consequences due to the release of de-icing Fluids can be measured and reduced.The main impact of the aircraft de-icing on the environment is due to the large oxygen demand for the degradation of glycol based de-icing Fluids which are released in the environment. The effect of the increase in oxygen demand depends on where the degradation occurs in the ecosystem. In a sensitive ecosystem, the large demand of oxygen could provide an anaerobic environment which would be harmful for many types of organisms.In order to reduce the negative effects of the applied de-icing fluid, there is some type of collection system at every regular airport in Sweden. The methods of collection can be divided into two general groups, hydrological isolation or vacuum sweeper trucks.

Fluids are important to the Visual Effects Industry but extremely hard to control and simulate because of the complexity of the governing equations. Fluid solvers can be divided into two categories, those of the Eulerian point of reference and those of the Lagrangian. Both categories have different advantages and weaknesses and hybrid methods are popular. This thesis examines Smoothed Particle Hydrodynamics, a Lagrangian method for physically based uid simulations. To allow the artist the exibility given by shorter simulation times and increased number of iterations, the performance of the solver is key.

This study is a degree project in environmental engineering at Mälardalens university. Its purpose has been to perform a risk assessment on whether or not any contaminations are present in the soil at two properties in Köping. The assessment was to be done accordingly to a method that has been set up by The Swedish Environmental Protection Agency (Naturvårdsverket). The method for investigation of contaminated sites is called MIFO. MIFO consists of two stages.

I have in my thesis produced a start of a multiplayer, voxel, strategy sandbox game withadvanced AI. The world is made out of voxels in the form of blocks that both the players andother units can affect and change. In a world where every block follows the laws of physicsfor both Fluids and physics. The game is designed for several players that fights for controllover land and resources..

Simuleringen av vätskor är idag en viktig del inom både film-, spel- och reklamindustrin. Detta kräver dock mycket av hårdvaran vilket saktar ner processen att rendera markant. I detta projekt forskades det inom optimering av renderingstekniker för att göra det lättare att rendera fram kvalitativa resultat när man använder sig av Fluids i program för 3D-grafik. Arbetet innehåller en undersökning där testpersoner bedömt ett antal renderingar samt de optimerade inställningar som används till rendering.

A method for intra vitam detection of bornaviral infection and diagnosis of bornaviral dis-ease in the cat is currently lacking. The aim of this work was to explore the possibility of using the proximity ligation assay (PLA), with its capacity of recognizing femtomolar con-centrations of a protein, as a method for detection of the minute quantities of antigen and antibodies that are present in the tissues and body Fluids of a bornaviraly infected cat. For this purpose reliable comparative assays, in the form of an ELISA and an IFA, had to be established. When this proved impossible within the time frame of the project, the aim of the study had to be abandoned, further underscoring the need for improved means of detec-tion of bornaviral antibodies and antigen..

Om man vill skapa ett realistiskt hav inom Computer Graphics är det viktigt att man har snygga övergångar till andra material. Ett exempel på detta är stränder och det är precis där fokusen på den här studien har legat. Studien gick ut på att hitta en enklare lösning på att visuellt förbättra stränder inom Computer Graphics. För att göra detta så testade två olika metoder i olika experiment. Den ena tekniken som testades var att simulera partiklar för att få fram en bättre strandlinje och de andra var att skapa en shader för att förbättra den.

In metabolism Mg plays an important role because it affects many cellular enzymes in the body. The energy metabolism and protein synthesis are dependent on Mg as an enzyme activator, Mg is also involved in the synthesis of RNA and DNA. Absorption of Mg primarily takes place over the ruminal epithelium in ruminants. The main storage of Mg is in the bones but that can only be reached if the cow is in great need of calcium or phosphorus, it's a hormonal regulated process that induces catabolism of bones. Free and available sources of Mg are found in soft tissues and in the extra cellular Fluids that includes cerebrospinal Fluids and blood.

During the last 50 years the production of milk per cow has increased. This has, however, been followed by a decreased reproductive performance. Shorter and more indistinct signs of oestrus make it harder for the Swedish farmers to discover when the cows are in oestrus. There is a need for ways to control reproduction. The use of pheromones could possibly provide means to satisfy this need.

This thesis describes a system for dealing with free surface fluid simulations, and the components needed in order to construct such a system. It builds upon recent research, but in a computer graphics context the amount of available literature is limited and difficult to implement. Because of this, the text aims at providing a solid foundation of the mathematics needed, at explaining in greater detail the steps needed to solve the problem, and lastly at improving some aspects of the animation process as it has been described in earlier works. The aim of the system itself is to provide visually plausible renditions of animated Fluids in three dimensions in a manner that allows it to be usable in a visual effects production context. The novel features described include a generalized interaction layer providing greater control to artists, a new way of dealing with moving objects that interact with the fluid and a method for adding source and drain capabilities..

Humor is as interesting as it is hard to define. It has travelled a long way since Hippokratestheory about body Fluids and how someone, if lacking one of these, were called a humorist andwere laughed at.In this thesis we developed a new method for categorizing types of humor in Swedish comedyseries on TV. We chose six different shows (Grotesco, KvarteretSkatan, Morgonsoffan, Fredaghelaveckan, Parlamentet and Hjälp!) from the two most popular TV-channels in Sweden(SVT1 & TV4).We based or method on previous researchers? work and came to find some categories that wererepresented in most of the previous work. Our own method came to contain seven categorieswhich we believe is enough to obtain all kinds of humor in Swedish comedy series on TV.In our study we saw that most of the humor fell under the category that we called unnormalityhumor,a category which contained incongruity which many researchers believe is afundamental part of humor.Our opinion is that the unnormality-category became too wide in our study and that we perhapsshould have divided it into two or possibly three categories to see a more distinctive result.Nonetheless, our result offers an interesting starting point for future comparative studiesfocusing on similar subjects..

The Earth and everything else in the universe was created in the Big Bang around 14 billion years ago. A point with tremendous density and mass began to expand and more and more atoms began to form. From the first and lightest like hydrogen and helium to heavier atoms such as iron and eventually gold. The formation of the Earth occurred about 4.6 billion years ago and so the first gold atoms were concentrated only here. It is however believed that much later in Earth's history an extra supply of gold occurred thanks to massive meteorite bombardments.

Background: Cystic fibrosis (CF) is the most common hereditary disease that leads to an early death. Earlier CF was considered as a childhood disease but today the expected age is 50 years. CF affects all the epithelial cells in the body which makes mucus and other body Fluids more viscous than normal. The thick mucus leads to among other things respiratory problems and infections of the lungs. Today there is no cure, only medicines that controls the symptoms.Aim: To describe parents experiences living with a child with CF.

Examensarbetet Exteriört Designkoncept av Polar 560 för Soliferpolar AB är den avslutande delen på civilingenjörsprogrammet Teknisk Design vid Luleå tekniska universitet med inriktning industridesign. Examensarbetet är utfört under en projekttid på 20 veckor åt SoliferPolar AB. SoliferPolar AB är idag nordens största tillverkare av husvagnar. Platsen är Dorotea, där både SOLIFER och POLAR tillverkas. Arbetet syftar till att finna en tilltalande exteriör husvagnsdesign som skall öka marknadsandelarna för SoliferPolar AB genom ökad försäljning av POLAR.

Formulation and testing of a new type of chainsaw lubricantThe company Agro Oil has come up with the idea of developing an environmentally adapted chainsaw lubricant with a new unusual base fluid. A field test with a tree-harvester shows unsatisfactory low temperature properties and high wear. In this work the viscosity, price and pour point of different combinations of the given base fluid and three other base Fluids have been investigated. Desired viscosity and price are determined for different formulations. The new lubricants tested show lower pour points than almost all products on the Swedish market.A test equipment has been developed to investigate the wear.