In the last few years people have become more and more aware of how humanity is affecting the climate. In the direction of reducing the greenhouse gases is to design engines with higher tensile properties and reduced weight, in order to achieve lower fuel consumption and cleaner fuel incineration in today's truck engines.In order to achieve these requirements it?s necessary to increase the combustion pressure in the engine. This requires higher tensile properties and high thermal conductivity of the engine material. The department of Component Technology at the University of Jönköping in collaboration with Volvo Powertrain AB, Scania CV AB and DAROS Piston Rings AB has been commissioned to develop this material and to find knowledge of material properties used in truck engines and piston rings used for marine applications.The purpose with this work is to analyze the tensile properties of a series of cast iron, cast under different metallurgical conditions.Four different series of cast irons have been analyzed from four points of view, carbon concentration, nodularity, amount inoculation and cooling rate.After the tensile test all specimen data was analyzed in a mathematic calculation program called Matlab 2006a.

To increase the knowledge about the growth of hazel (Corylus avellana)and size distribution of the shoots, circumference and stem diameter wasmeasured in a total of 54 clones in two areas in Östergötland. Further, thewidth of growth rings was determined for separate years. The diameter ofthe stems was measured both out from the centre of the stem andperpendicular to the first measure. The stems showed only a weaktendency to have an oval shape (with the longest side outwards from thecentre). The growth model did not improve when the degree of sunlightof clones was taken into the account.

Uppsatsen undersöker fem mäns berättelser kring krigsfilmen Saving Private Ryan, med fokus på maskulinitet. Föreställningarna och bilderna kring maskulinitet som kan urskiljas i intervjupersonernas berättelser, knyts till R.W. Connells teoretiska ramverk kring hegemonisk maskulinitet och de hierarkiska relationerna mellan olika maskuliniteter. Vidare resoneras det kring hur berättelserna exemplifierar en syn på mediepublik som aktiva meningsskapare, då intervjupersonerna tar fasta på olika aspekter i filmen samt ger den olika mening och betydelse. Slutligen belyses hur genus- och andra identiteter är något som kontinuerligt skapas i mötet med en mängd olika diskurser varje dag, samt hur själva handlingen att se på krigsfilm i sig kan ses som konstruerande av maskulinitet..

Uppsatsen jämför de båda svenska översättningarna av JRR Tolkiens Lord of the Rings: Åke Ohlmarks Sagan om ringen från 1959 och Erik Anderssons Ringens brödraskap från 2004. Syftet är att se vilken översättning som är närmast originalet och författarens intentioner. Genom att jämföra olika uttryck ges en konkret bild av vilken översättning som mest överensstämmer med Tolkiens originaltext. Dessutom tas olika aspekter på översättande i allmänhet upp, likväl som vilka specifika svårigheter som finns i översättandet av bokens olika konstruerade språk. Min slutsats är att Ringens brödraskap är mest trogen originalet och att läsaren i den får mer eget tolkningsuttrymme..

This essay concerns the fantastic and its position in narration. The fantastic's defintion is based on Martin Horstkotte's defintion in The Postmodern Fantastic and the essay focuses on the noncontextual aspects such as the clash between two incompatible fictional worlds and the absence created. Instead of the ordinary identification of the established fictional world with realism and our reality it is suggested that both of the colliding fictional worlds are fictive and that the established one not necessarily need to be realistic. Exampels on how the fantastic takes place on the syntagmatic level in a narration is drawn from the short story ?Samvetets fantasi? by Clas Livijn when analysed with Peter Brooks' closurebased narratology theory in Reading for the Plot.

Syftet med denna uppsats är att fokusera de queera ögonblicken i J.R.R. Tolkiens trilogi The Lord of the Rings för att visa att det queera finns i kulturen på samma sätt som det icke-queera. När är de två hobbitarna Frodos och Sams relation queer? Vad gör den queer? Hur kan vi förstå denna queerhet i termer av homosocialitet och homoerotik? Uppsatsen är inspirerad av Tiina Rosenbergs queera läsningar, jag använder mig dessutom av Adrienne Richs teori om "lesbisk kontinuitet" och Sedgwicks resonemang om manligt homosocialt begär. Jag har kommit fram till att Frodos och Sams relation rör sig mellan mer och mindre queerhet.

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.

In this investigation has an attempt to find out whether so called transplanting shock depends on the moving and transplanting of trees, to other conditions, or if it is due to the imbalance between the root to shoot ratio. Seventy trees of Prunus avium have been part of the investigation and these trees have been divided into four different groups depending on methods of production, untouched on the field, trees still on the field but with root pruning, trees moved and planted into Root-Control-Bag, trees moved and planted into Spring-rings. To be able to answer the question, measurements of the length of the terminal shoots and the lateral shoots and the dimension of the stem growth have been done and also has a visual judgment of the trees vitality been performed. The result shows that it is not only the move of the trees that gives them transplanting shock, but rather the loss of roots which gives an imbalance between the root and crown..

Denna uppsats handlar om hur artisterna Håkan Hellström och Ken Ring konstruerar diskurser kring maskuliniteten i sina musiktexter. Utifrån poststrukturalistiskt influerad teori kring feminism och maskulinitet görs en komparativ närläsning som bildar en tematiskt uppbyggd studie. Utifrån det för artisterna gemensamma temat utanförskap visar studien att utanförskapet hos Ken Ring är relaterat till en känsla av maktlöshet. Denna kompenserar Ken genom att konstruera maskulina diskurser med ett överdrivet anspråk på det som den europeiska kulturen förknippar med maskulinitet och genus. Detta kan kontrasteras mot Håkan Hellström som i sitt utanförskap konstruerar maskulina diskurser där ?omanlighet? och ett kärleks- och sexualitetsbegrepp där ?jaget? blir könsmässigt tvetydligt, står i fokus.

Heartwood has always been a desirable part of the tree, due to it?s superior decay qualities com-pared to the sapwood. How the formation of heartwood works has been known for a long time, but which factors that initiates and stimulates the production are poorly understood. This case study presents the results of a study in which silvicultural treatments and site properties had a key position as factors to the formation of heartwood. According to the hypothesis the amount of sapwood is directly controlled by the size of the crown.

This master's thesis is a study of how librarians are depicted in crime fiction. 12 American and English mysterynovels featuring librarians in a central role were studied and analysed using character theory. Recurring traitswere identified and organised into themes. A number of prominent traits and themes emerged that show librariansas orderly and organised bibliophiles, but with a taste for adventure and excitement. They are keen problem solverswho enjoy a challenge, at work, or in the form of crime detection.

Future emission legislation puts great emphasis on increasing the efficiency of the engine, thereby reducing fuel consumption. The tribological contact between cylinder liner and piston ring is where an great amount of energy is lost due to friction, and by reducing these losses an reduction in fuel consumption can be achieved.The aim of this thesis was to evaluate the tested piston ring coatings against a plasma sprayed cylinder liner and rank these combinations of materials for friction and wear resistance. The coatings that were tested was Cr + Al2O3, (Al,Cr)N, two types of CrN and WC / C.The experimental tests were performed with a so-called pin-plate, where used oil with addition of an acidic mixture of sulfuric and nitric acid to mimic the acidic condensate formed when exhausts recirculate, were added with a continuous flow. The results were then analyzed by weighing, studies by optical microscopy and scanning electron microscopy (SEM) and profile measurements.The results from each material combination were that the plasma coated cylinder liner wears too aggressively in order to yield a ranking of the piston ring coatings based on the parameters of friction and wear resistance. It is therefore proposed that an alternative coating on the cylinder liner should be developed, lacking the large abrasive wear on piston rings and that can withstand the corrosive environment resulting in engines equipped with EGR.

How do you summarize the content of a fictional work, let?s sayLord of the Rings, into a few "telling" words that may represent it? This master?s thesis is a comparative study of how library users? freely chosen tags/keywords deviate from controlled vocabulary made by professional indexers when representing fiction. The thesis answers four main questions:? Do the tags that the library users give fictional works correspond to the categories used in professional indexing in Sweden?? Do the tags follow the standards for vocabulary, semantics and syntax used when indexing professionally?? Do the tags add something to document representations?? Are there differences between the tags used for adult fiction and the tags used for children?s literature?With a starting point in indexing theories of Frederick W. Lancaster, Annelise Pejtersen, and the semiotic theory of the indexing process of Jens-Erik Mai, 383 tags from totally 70 fictional works are analyzed.

Future emission legislation puts great emphasis on increasing the efficiency of the engine, thereby reducing fuel consumption. The tribological contact between cylinder liner and piston ring is where an great amount of energy is lost due to friction, and by reducing these losses an reduction in fuel consumption can be achieved.The aim of this thesis was to evaluate the tested piston ring coatings against a plasma sprayed cylinder liner and rank these combinations of materials for friction and wear resistance. The coatings that were tested was Cr + Al2O3, (Al,Cr)N, two types of CrN and WC / C.The experimental tests were performed with a so-called pin-plate, where used oil with addition of an acidic mixture of sulfuric and nitric acid to mimic the acidic condensate formed when exhausts recirculate, were added with a continuous flow. The results were then analyzed by weighing, studies by optical microscopy and scanning electron microscopy (SEM) and profile measurements.The results from each material combination were that the plasma coated cylinder liner wears too aggressively in order to yield a ranking of the piston ring coatings based on the parameters of friction and wear resistance. It is therefore proposed that an alternative coating on the cylinder liner should be developed, lacking the large abrasive wear on piston rings and that can withstand the corrosive environment resulting in engines equipped with EGR.

The thermal response of a borehole field is often described by non?dimensional response factors called gfunctions.The g?function was firstly generated as a numerical solution based on SBM (Superposition BoreholeModel). An analytical approach, the FLS (Finite Line Source), is also accepted for generating the g?function. In thiswork the potential to numerically produce g?functions is studied for circular borehole fields using the commercialsoftware COMSOL.