The purpose of this thesis is to evaluate 7 different search strategies for content-based image retrieval with respect to retrieval effectiveness. The strategies are based on different levels of resolution implemented by the Haar transformation. The result of the study shows an improvement in both mean average precision and mean recall in strategies based on lower levels of resolution..

The essential thing about breaks has been in relation to time, body, movement, force and room during my examination. Through conversations high-school students from two schools have taken part in this study. The examination is based on conversations with the students and has focused on students? experiences of breaks, and is also carried through by the method of phenomenology. The results of my studie show that students - during their breaks - experience a feeling of allways heading for something and also that time seem to exist in three levels: filled time, non-filled time and flow regarding of time.

My thesis deals with the novel Ladies, written in 2007 by the Swedish author Mara Lee. When published, it was received as a book belonging to the chick lit genre but still got good reviews. This combination is really unusual and awoke my interest in the novel. My thesis is therefore an analysis whether Ladies can be considered a chick lit novel or not, and in what way it is similar to or differs from the genre. I start my thesis with an overview of former research of chick lit and what earlier was called trivial literature.

AbstractTitle: A gaze says more than a 1000 words ? a study of the portrayal of female celebrities in the photographic material on the online portals of Aftonbladet and Expressen En blick säger mer än 1000 ord - en studie av porträtteringen av kvinnliga kändisar i Aftonbladetsoch Expressens bildmaterial på InternetNumber of pages: 58 (59 including enclosures)Author: Sofie BackmanTutor: Amelie HössjerCourse: Media and Communication Studies DPeriod: Spring 2008University: Division of Media and Communication, Department of Information Science, Uppsala University, SwedenAim: The aim of this essay is to study in what ways female celebrities are portrayed in the photographic material of the Swedish tabloid press. In which situations does she appear? What function does she seem to behold in the pictures? Further the thesis explores whetherthe portrayal of the female celebrity shows signs of stereotyping.Method/Material: The study combines a quantitative and a qualitative method. A picture analysis of photographic material from the online versions of the Swedish tabloids Aftonbladet and Expressen has been conducted.

Det råder en ökad tendens för den svenska småspararen att diversifiera sin aktieportfölj efter eget behag så att andelen obligationer och aktier tillsammans med utländska värdepapper och derivat kan ge maximal avkastning i förhållande till risk. Ett förekommande problem är dock att hitta rättvisa mått, matematiska och ekonomiska, som visar den korrekta bilden av en tillgångs utveckling i förhållande till marknadsportföljen varpå det krävs en förståelse för hur en tillgång eller en portfölj rör sig rent matematiskt. Utvalda aktier och obligationer ska avläsas ur måtten kovarians, korrelation, effektivitet och volatilitet och sedan ska resultatet ställas mot att enbart ha analyserat betavärdet för portföljen för att komma fram till lämpliga matematiska uttryck när man analyserar den diversifierade aktie/obligationsportföljen för en person med begränsad finansiell kunskap. Risken med urholkad valuta i utländska aktietransaktioner samt två olika optionsstrategier kommer också att redovisas rent grafiskt i studien för att visa utökade avkastningsmöjligheter..

Att fo?retag arbetar ha?rt med att sta?rka sitt varuma?rke a?r ingen hemlighet men a?ven ideella fo?reningar arbetar aktivt med sitt varuma?rke. Problemet fo?r ideella fo?reningar a?r att de inte la?ngre kan fo?rlita sig pa? biljettfo?rsa?ljning och medlemskap utan mer ma?ste fo?rlita sig pa? sponsorers finansiering. Avsaknaden av ett tydligt varuma?rke bidrar till att ideella fo?reningar idag inte fa?r maximal sponsring.

In Sweden, reduced tillage usually means non-inversion tillage, where primary tillage is carried out using chisel ploughs or disc implements. Primary tillage method is mainly determined by the desired soil loosening and the handling of soil residues. The effect of tillage depth was studied in field experiments in Skåne, Väderstad, Uppsala, Örebro och Västerås in different crops; spring oilseed rape, spring wheat, winter wheat and spring barley.The experiments generally had a randomized block design with the treatments mouldboard ploughing, deep chisel ploughing and shallow chisel ploughing, in some cases also shallow discing and no-tillage. In the experiments the following parameters were determined: seedbed properties, saturated hydraulic conductivity, penetration resistance, number of emerged plants and crop yield (all parameters were not determined in all experiments. Root growth and draught requirement were determined in two separate studies. There were no significant differences between tillage depths in non-inversion tillage in seedbed properties, plant emergence or root development.

The purpose of this master thesis has been to find different solutions to the design of a headlamp with a cluster of three or possibly four high power LEDs (Light Emitting Diodes). During the work, two different problems have been considered; how to design a lens in order to shape the light beam in a desirable way, and how to design a cooling system which will lower the temperature of the LEDs as efficiently as possible, still taking into account the geometry set by the optical solution as well as other given geometries. The results presented in this thesis are partly the outcome of a literature study, but derive mainly from a number of tests and measurements made on two test rigs and one concept prototype..

Concrete floors have traditionally had no problems with annoying vibrations. However with the demand for larger spans the floors need to be made more slender with a higher degree of utilization and lower mass. Therefore new floors may have problems with vibration serviceability. This thesis studies the vibration characteristics of hollow core slabs. The analysis was made in the finite element program Ansys. The hollow core slab was subjected to a varying force simulating one person walking across the slab.

This thesis work has been performed on request by SWT (Scandinavia WeldTech AB). SWT manufactures, develop and sell ready to assemble building systems for concrete rafter beam applications. The beams in this system consist of a u-beam that is welded to a flange. To be able to fill the beams with concrete there is holes in the beams top end. The holes are made in a ?punching machine?.  These holes are cut out and the remaining steel piece is bent down in the u-beam.

Caran has a strong belief that women leaders affect the financial profitability positive. Since women leaders are intangible resources it is very difficult to calculate its exact value. The authors found that one of their measurement methods can’t be used to calculate the value of women leaders. The other measurement method can calculate significance between women and men leaders and provides an index to be compared to other groups. But there is no prove that women are better creating value than their men colleagues, the figures indicate that women add more value due to their lower wages.

Fast pyrolysis is a method for converting biomass into three energy rich products: char, gas and bio-oil, where the latter is most interesting.  Pyrolysis is an endothermic process where biomass is heated in an anaerobic environment and, with the right operating conditions, up to 80 %wt bio-oil can be extracted. Key parameters for fast pyrolysis are: stable reactor temperature (~500°C), short residue time for gas in the reactor (<2 s) and a very high heating rate for the biomass. Today there are several different process solutions for fast pyrolysis, where fluidized beds and rotating cones are most developed. Bio-oil has compared to fossil oil: lower heating value, low pH and also polymerizes with time. Because of this upgrading is desirable for increasing competitiveness.

Studiens syfte är att utforska en musikers kroppsspråk vid instuderingen av en orkesterstämma. Detta har observerats under instuderingen av förstaflöjtstämman i fjärde satsen av Brahms andra symfoni. Studien har sin utgångspunkt i det designteoretiska perspektivet och har genomförts med hjälp av videoobservationer under repetitionsperioden av verket. Jag har även fört loggbok under processen av självobservationen. Resultatet av studien visar att de kroppsliga resurserna kan hjälpa, men också stjälpa, den musikaliska processen och dess uttryck.

Norrborns Industri AB in Bollnäs manufactures truck trailers with the brand Parator. One of their trailers is Parator LX 10-20. The trailer is designed to transport hooklift containers with the option to tip loose goods such as gravel, asphalt and seed. The container is mounted on a frame which is placed on the chassis. To reduce weight a redesign of the trailer is needed.

Södra Cell Mörrum is one of the five paper pulp plants that are included in Södra Cell, and the paper pulp that is produced here is not only sold to Swedish paper mills. Most of the paper pulp is exported to different countries in Europe. In the manufacturing process the plant needs different kind of process water and there are guideline values for how much copper, iron and sodium this water is allowed to contain. Analyzes of this water is in the current situation done with an atomic absorption spectrometric instrument (AAS-instrument) with a flame. Measurements done with flame-AAS of samples that have concentrations near the guideline values for copper, iron and sodium, are not reliable. The reason for not being reliable is that the quantitation limits of these metals are higher than the limit values.