Today?s society is one where technological advances are made daily, which increases the need to stop and assess the risks against users? integrity when integrating new technology in contemporary systems all the greater. We have taken two technologies, Near Field Communication and Certified Wireless USB, whose envisioned area of use is to be integrated into mobile phones, and evaluated what security threats are revealed for the respective technologies. The threats against security have been identified through research of the standards and existing reports for each technology. Practical experiments have not been conducted on account of us not having access to any equipment to run such trials.

I ett samhälle där tiden blir en allt mer avgörande faktor ökar konsumenternas efterfrågan på tidsbesparande konsumtion. E-handel erbjuder konsumenter besparandet av tid och bekvämlighet genom att det är möjligt att göra inköp, när som helst och var som helst. När företag väljer att tillämpa e-handel innebär det att de inte längre kan möta kunden öga mot öga. Vid hemparty, som är en form av direkthandel, sker försäljningen i direktkontakt med kunden. Försäljningen äger rum i kundens hem tillsammans med dennes vänner och bekanta.

The aim of this thesis was to investigate if the robotized welding method FSW (Friction Stir Welding) could be applied for joining a rotating structure in an aero engine at Volvo Aero Corporation. FSW is expected to introduce less defects than today?s welding methods and could therefore be suitable for critical aero components. The material is the nickel based alloy Inconel 718, however a material experimentation is outside the scope of this report.The main goal of this study is to verify if the ESAB ROSIO robot based FSW-system has a suitable work space to be able to weld the rotating structure, and if the welding tool has accessibility to the joints. The FSW-process needs a rigid fixture, and a number of fix-ture concepts are presented based on a proposed weld sequence.

This report describes a Bachelor thesis work in which a robotised laser welding cell has been modelled and simulated for the purpose of making a presentation movie. The report shows that the work has been concentrated on making the movie from the modelling phase through the recording of the movie and ending up with the editing of the final presentation movie. A pre-study was made prior the Bachelor thesis work. In the pre-study a literature study was conducted about measurement and calibration of a welding cell. Measurement of almost all equipment in the entire cell was also conducted in the pre-study.

The Homogeneous Charge Compression Ignition (HCCI) engine is promising in terms of lowNOx, low particulates and high efficiency. Due to its homogeneous charge, where thecombustion starts almost simultaneously from a number of points in the combustion chamber,only lean mixtures are possible to burn because of the resulting rapid combustion, which is muchfaster than the combustion in an SI-engine or a diesel engine. When richer mixtures are used thecombustion will start earlier and also be more violent.To phase the combustion later and lower the combustion speed, external cooled EGR can beused. The EGR-system used in this thesis uses a divided exhaust channel where one channel andits corresponding valve are used only for transporting EGR back to the intake system.Consequently the EGR-valve is connected to the intake pressure. This system is called Direct-EGR (D-EGR).Engine tests verified that the CA50 indeed is phased later when cooled EGR is used.

Our project is divided into two parts, one production and written report. The main focus was the production part, were we used PHP to create simple solution for handling SMS and MMS with direct communication with the mobile operator server. We communicate with sockets and can handle CIMD2 and MM7 protocol. To get our components easy to use we have created two classes to handle SMS and MMS. To demonstrate our technical platform we created a website were you can create an account.

In this essay the author has chosen to analyze the similarities and differences between some of the northern Europe?s late Mesolithic and Neolithic cultures. The research is of a processual standpoint and the information is mainly gathered from secondary sources as well as ethnological studies. The material collected has been analyzed in both a processual and a post-processual manner to most accurately study the foundations of the three primary theories describing the Pitted Ware Culture?s origin.

Kolorektal cancer (CRC) är en av de vanligaste cancersjukdomarna i världen med cirka 1 miljon nya detekterade fall per år. Special AT-rich sequence-binding protein1 (SATB1) är ett celltyp-specifikt kärnmatrix-associerat DNA-bindande protein, vilket utgörs av AT-rika DNA sekvenser. Det har tidigare demonstrerats att en annan medlem i SATB-familjen, SATB2, uttrycks på ett vävnadsspecifikt sätt i normal mukosa i nedre mag-tarmkanalen och i CRC. ?-catenin är en intracellulär mediator i Wnt/?-catenin signaleringsvägen, som spelar en viktig roll i kolorektal carcinogenes.

An increasing number of automotive supplier companies are investing in Central and Eastern Europe (CEE) in order to gain cost advantages. This has happened in a rapid pace since many of these countries did not have any foreign direct investments (FDI) at the turn of the century. The problem now is for how long these countries will be able to maintain the low costs. One purpose was to create a model of country advantages for automotive supplier companies when relocating further production to CEE. This dissertation was written in cooperation with the Trelleborg Group.

So far, only limited research has been carried out on viruses infecting raspberry, even though the diseases that these viruses cause result in economical losses for raspberry growers. Raspberry ringspot virus (RpRSV) belongs to the family Comoviridae and the genus Nepovirus. Nepoviruses are characterized by their icosahedral virus particles and bipartite genome of single-stranded (+) RNA (RNA-1 and RNA-2). These viruses are transmitted mainly by nematodes of the genus Longidorus, which feed on the roots of plants. RpRSV causes disease in raspberry, grapevine, strawberry and many other plants.

Uppsatsen har sin grund i att studera medias tillgänglighet inom fildelningsnätverk då specifikt DC och BitTorrent. Undersökningen består av en kvantitativ studie av fildelningsnätverk som byggde på vår fråga: Hur ser medias tillgänglighet på fildelningsnätverk ut? Med frågan vill undersökningen göra en nutidsstudie om tillgänglighet av filmer, pc-spel och tv-serier på fildelningsnätverk. På så sätt bättre förstå den nutida utvecklingen av kommersiella film- och musik- tjänster, samt reflektera över om fildelningsnätverk kan ses som en komplett källa när det gäller tillgången av det undersökta materialet..

A discussion regarding the alignment and measuring procedure of propeller shafts has arose due to the competing situation in the industry, and higher standards from the customers. An estimation of the deflection of shafts in different alignment situations has been made with help of FEM-analysis and beam theory. This has been analyzed and compared with the experience from Rolls-Royce AB suppliers of shafts. An evaluation of measuring protocols has been made and the result indicates that there is a correlation between the deflection of the shaft and the run out. Results from a measuring test performed by Balino, Spain, verifies this conclusion.

”Fan fiction writing”, or the writing of stories based upon a popular entertainment franchise, has become a topic of academic discussion. Fan fiction writers have waked the ire of movie producers, since they often write fiction that is in direct contradiction to the movie’s plot or spirit. While most academic studies on fan fiction have concentrated on his confrontational aspect of the writers’ psyches, we have found that the writers actually have a much more nuanced approach to their work, and are not necessarily hostile towards the directors and producers. Even more surprising is the fact that the internet, beyond giving the writers a forum to post their writings, has potentially had a transformative impact on how the writers interact with each other and with the outside world. .

Genetic defects are caused by mutations in major genes where the gene?s protein product has a large impact on the physiology of the animal. The synthesis of the protein can be altered by a change in the nucleotide sequence, which can lead to malformation and in many cases death.One of the main reasons of increase in many genetic defects is the use of few bulls in breeding programmes, causing a reduction of the genetic variation. Genetic defects cause suffering for the animal and influences the production by, for example, increased costs due to misscarriages, lost milk production and expenditure for medical treatment. Bovine Leukocyte Adhesion Deficiency (BLAD) and Complex Vertebral Malformation (CVM) are two genetic defects that were widespread before the causative mutation was discovered.

The free choice of upper secondary school?A study of the meaning of the information channels for the choice of upper secondary schoolAuthors: David Fridner & Rikard ZeilonMentor: Ingela WadbringQuestionnaire studyDate: 2008-08-11AbstractThe choice of upper secondary school is a very important choice, both for the school and for the ninth grader. In Göteborg, the free choice of upper secondary school has generated several new information channels apart from the traditional counselor, daily news and the acquaintance. Today it is harder than ever to reach the pupil through the constant media noise and new forms of communication such as events appear. The fight for each pupil gets more and more important every term and it has now become real big business.Today?s youth is imprinted by a growing individuality and everyone knows that equableness is something very important.