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.

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.

Nematode-transmitted plant viruses (such as nepoviruses) cause great economically losses in commercially important plants such as tomatoes, grapevines and raspberries all over the world. To avoid spread of the viruses the interest in mapping the viruses has increased. One of the important nepoviruses infecting European red raspberries (Rubus idaeus) is Tomato black ring virus (TBRV). TBRV has earlier been confirmed in raspberry samples from Belarus by ELISA and the aim of this bachelor degree project was to confirm these results by amplifying, cloning and sequencing the coat protein (CP) gene of the virus. In total eight viral cDNA samples, from two different raspberry samples, were amplified and sequenced.

Collaborative music making on the Internet is not a new phenomenon, but no applications have yet caught on with the vast number of laptop and bedroom studio musicians active today. This is strange considering the inherent social and interactive nature of music, especially amongst trends like Web 2.0 where collaboration and user-generated data is key. In this paper I study the problems these applications face, and why they do not have a greater appeal to musicians. With the results I develop and evaluate my own framework, known as Crescendo Online: a multi-user sequencing and modular synthesis environment, intended to pave the way for a new type of online music creation platform..

Uppsatsen handlar om varför man spelar online spel, och vilka orsaker det är som gör att man lägger ned så mycket tid på det. Jag har intervjuat nio stycken väldigt erfarna onlinespelare runt om i Sverige. Syftet var att ta reda på varför man spelar onlinespel?.

Studiens syfte ?r att unders?ka vilka tolkningar och beskrivningar tittaren g?r av de produktplaceringar presenteras i TV-serien Snabba Cash. Mer specifikt studeras vad som kr?vs f?r att f?nga tittarens uppm?rksamhet vid produktplaceringar och hur exponeringarna f?r publiken att resonera och motivera sina upplevelser av det varum?rket som marknadsf?rs. Med fr?gest?llningen hur uppfattar unga vuxna produktplaceringar av specifika varum?rken som marknadsf?rs i TV-serien Snabba Cash och p? vilka s?tt p?verkar uppfattningarna attityden mot varum?rket? Studien har en deskriptiv och explorativ kvalitativ ansats med semistrukturerade intervjuer av djup karakt?r. Det teoretiska ramverket best?r av Persuasion Knowledge Model (PKM) och Elaboration Knowledge Model (ELM).

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.

Denna studie baseras pa? ett intresse att underso?ka fo?ra?ndringar och likheter inom marknadsfo?ring av kataloghus mellan 1960-2010. Genom en litteraturstudie och en utfo?rlig studie av sma?huskataloger under denna femtioa?rsperiod har vissa slutsatser kunnat dras. Resultaten visar ba?de pa? likheter och skillnader i marknadsfo?ringen.

Vi lever idag i ett samha?lle fullt av obalanser. Det ga?r att se hur ett konsumtionssamha?lle va?xt fram, grundat i en o?kad tillfredsta?llelse o?ver materiella ting. Ett samha?lle som besitter oha?llbara verktyg och ideal fo?r att skapa va?lsta?nd, och i sin tur har negativ pa?verkan pa? miljo?n.

Mitt syfte med denna studie av Häckelsängsringen är att ta reda på om den verkligen är från vikingatiden samt om den har haft en eds-, rit- eller kultfunktion? Finns det någon vikingatida kult i området som kan komma ifråga när det gäller denna ?mystiska ring?? Till min hjälp har jag tagit litteratur som talar om ringar och eder till exempel de Isländska eddorna. För att se om det finns en vikingatida kult i området har jag besökt Hamrånge socken, både själv och tillsammans med arkeologer. Jag har studerat länsmuseets faktarum och fornminnesregistret. I fornminnesregistret har jag hittat platser såsom en reliklund med mycket gamla lindar, en tänkbar offerkälla, en stenlagd cirkel som kan vara en tingsring samt att i närheten finns ett område som på gamla kartor kallas Lundåker, en tydlig odling av hassel.

In todays high-technological society where the Internet plays a central role in our day-to-day life, many e-retailers are not able to attract customers to complete a transaction on their website. In order to succeed, many e-commerce sites must improve several safety aspects regarding online payment, in order to be perceived as a reliable and secured retailer. The purpose of this paper is to investigate if increment in various combinations and aspects in online payment will in fact improve the customer's perception of the e-retailer and result in completed transactions. In order to investigate this aspect, an experiment was conducted to be able to compare eight independent groups, that each had been exposed to a different security scenario on the online payment website of either a known or unknown retailer. Our results clearly prove that perceived security of the retailer's payment website increases willingness to purchase from the retailer.

Word-of-mouth marketing (WOM) has been considered as one of the most effective marketing tools, yet the least understood. While its lucrative effects have been well proven in academic studies worldwide, little is yet known of why consumers engage in WOM, and what factors actually drive this sought-after behavior, particularly in an online context. While today's research lacks holistic views on the simultaneous effects of multiple WOM-drivers, this paper takes on a meta-analytic approach by building on the pertinent literature to construct an aggregated model, including several previously acknowledged drivers divided into two categories: (1) Brand related drivers and (2) Personal and situational drivers. The authors then empirically examine what drivers are the most influential on WOM in an online social media context. By doing so, this thesis does not only contribute to marketing managers' better understanding of online communications management, it also sheds light on the theoretical knowledge of the behavioral drivers of WOM.

In this degree project I have studied how an anti-discrimination bureau can adapttheir online information to the target group ? immigrants who only have modestunderstanding of the Swedish language. This group is often subject of discriminationmatters, and therefore it?s important that they can take part of the information.To find answers to my questions I have studied different relevant theories, performeda readability analysis on the online information and have had qualitativeinterviews with representatives from the target group. I have also tested my rewrittentexts on both representatives and other readers.The result from my studies has shown that it is words that are the most difficult inthe current online information, while length and structure of the sentences are alsoof importance when it comes to the readability.

AbstractTitle: How does people that meet online communicate? -An qualitativestudy of the media use for individuals that date online.Number of pages: 34Autohor: Malin JanssonTutor: Amelie HössjerCourse: Media and Communication Studies CPeriod: Spring term, January 2010University: Informatics and Media, Media and Communication ScienceUppsala UniversityPurpose/Aim: The aim of this essay is to see if mediea use changesthrogh time in a relationship between individuals that have metonline.Material/Method: Qualitative method with nine interviews divided into two groupsdepending whether the person is an actively dejting online or ifshe has a long term relationship with someone she have metonline.Main results: The use of digital media changes thorugh time in therelationship. The individuals stop using the net dejting whenthey meet someone. The digital medias are stage at the begginingof the relationship. Through time they use a multiple ofdigital medias but they have preferenses and prefers to use thetelephone both when they are communicating positive andnegatvie information.Keywords: Online dating, social penetration, process of getting to knoweachother, communication.

Syftet med denna studie var att undersöka grupp- och kommunikationsprocesser i en online community där den gemensamma nämnaren mellan medlemmarna var intresset för spelet World of Warcraft. Undersökningen utfördes med hjälp av en egenkonstruerad enkät samt observationer vars syfte var att undersöka deltagarnas grupptillhörighet, vänskap, konflikthantering och kommunikation online, samt deras beteenden gentemot varandra. Syftet var även att undersöka om sociala anpassningsstrategier, standardroller och in-och utomgruppsfavoritism var applicerbara på en virtuell grupp. Undersökningsresultaten pekar på att många av de teorier gällande grupptillhörighet och vänskap även är applicerbara på grupper formade online samt att kommunikationshjälpmedel såsom smileys underlättar konversationer i skriven form. Resultaten pekar även på att de sociala anpassningsstrategierna och standardrollerna är applicerbara på en virtuell grupp, dock anses urvalet för litet och observationstiden för kort för att med säkerhet säga att dessa återfinns.