Vid sändning av digital television är det möjligt att utöver ljud och bild även sända och erbjuda olika typer av tjänster och applikationer till mottagare. Vid utveckling av applikationer för digital television kan man välja att utveckla i antingen DVB-J (som är en bantad variant av Java för exekvering i Set-Top-Boxar) eller i DVB-HTML (som till stor del överensstämmer med XHTML). Syftet med detta arbete är att utreda hur DVB-J och DVB-HTML kan kombineras i en och samma applikation och hur interoperabilitet kan uppnås mellan DVB-J och DVB-HTML..

This report deals with the modeling of a part of the communication system based on the IEEE 802.11a standard which represents the next generation of wireless LAN with greater scalability, better interference immunity and significantly higher speed, up to 54 Mbps. 802.11a uses Orthogonal Frequency Division Multiplexing (OFDM) where modulation is performed by an IFFT and the demodulation by an FFT. After modeling the FFT in Matlab and C, the FFT implementation has been validated using a soft microprocessor core by Xilinx (Microblaze) and the results were compared..

I denna kvalitativa studie undersöks hur ungdomar i 19-25 årsåldern ser på hälsa och hälsokommunikation. De är så kallade ?digitala infödingar? dvs. ungdomar som är uppväxta med och använder sig av digital teknik. Tio ungdomar har intervjuats med syftet att få ett underlag som kan öka förståelsen för digitala infödingars beteende och behov när det gäller hälsa.

The aim of the study is to learn more about the way preschool teachers work with Information and Communication Technology(ICT). More specifically, this study aims to explore how preschool teachers describe their experience of ICT, the conditions and opportunities to work with ICT, and their own knowledge and competence in the use of digital tools with preschool children. The research method consists of interviews with preschool teachers and observations at five municipal preschools in Stockholm as well as an analysis of the relevant passages in the Curriculum for the Preschool and the Curriculum of Stockholm city. This study shows that there seems to be great variation in the amount of ICT tools present in preschools. Preschool teachers expect a lot from ICT, and the improvements that it can make on their work.

This paper examines how and if the understanding of wedding photography has changed during the shift of technology - from analog to digital photography. It examines if the changed conditions due to the shift of technology have changed the habits and conditions for the photographers working with wedding photography. It furthermore examines what impact these habits and conditions have had on the pictures of weddings. The investigation is based on interviews of six photographers that have worked professionally before and after the shift of technology, as well as of pictures by the photographers taken before and after the shift of technology.Use of time and space has changed due to the shift of technology. The change has also had an influence on hierarchy among the photographers.

Title: Music video: Twelvestep ? DownInside Made by: Benjamin Bondesson Christian Edgren Tutor: Silvio Ocasic Course admin: Peter Ekdahl Purpose: To create a music video that we can stand, that challenges us in the creative process. And to help a struggling band with another medium to spread their music. Goal:We intend to create a great product that is demanding and educational to us. Especially when it comes to cooperation and editing/post production.

The purpose of this thesis is to discuss the possibilities of, and interest in, a digital download service at the music departments of the libraries. I chose to conduct my study at the city library of Gothenburg. I studied the legal download services that exist today and I did a statistical survey among the users of the music department, followed up by interviews to see how they took to the idea. From the inquiry I learned that a majority of the users was negative to having a digital service replacing the physical department, although a majority was positive to try a digital service. I also used the inquiry to compare the reasons for downloading music to the reasons for borrowing records from the library, but there was no significant difference.

The digitalisation of adolescents? everyday lives has created new contexts in which intimate partner violence can occur. Digital intimate partner violence includes controlling, monitoring, and harassing behaviours carried out through digital tools such as social media, messaging applications, and location-sharing services. These behaviours are often normalised among young people, which makes the violence difficult to recognise and address. This study aimed to explore how school counsellors perceive and define digital intimate partner violence among students, how they describe their work with identifying and managing such violence, and which organisational and communicative opportunities and barriers they experience in preventive efforts.

This thesis is divided in to two different parts. The first part includes examination of the measurementsystem of an industrial robot using a resolver sensor. The main focus is on methods for suppressing noise in the angularvelocity signal without increasing timedelay. Five different methods are investigated. Three of these are based on oversampling: burstsamplingmethod, meanvaluemethod and correlationmethod.

Detta examensarbetet undersöker möjligheten att eliminera de amplitudtoppar som uppstår då flera sinussignaler av slumpmässiga frekvenser adderas. Det som eftersträvas är en signal innehållande flera godtyckliga frekvenser samtidigt som den bibehåller en låg Crestfaktor (eller PAPR). De metoder som tas fram implementeras sedan i en FPGA. Rapporten behandlar de metoder som undersökts både i teoretiska utvärderingar samt i en hårdvaruimplementation. Resultaten visar på att det inte finns någon enkel lösning på problemet, men att en kombination av metoder kan användas för att få en förbättring av signalens Crestfaktor.

A number of publications has been produced for two companies in Dalarna, Utvecklingshuset andSkönhetsbanken.Utvecklingshuset is working, among other things, with stressyndroms and by treating crises. Theirpublications consist of a number of product sheets, a folder and a brochure. They want to use the publicationsfor information to their customers.Skönhetsbanken is a beauty saloon who will have a brochure to mediate the services they can offer.Photos have been taken, existing and for this purpose written texts have been used.The softwares Adobe Photoshop 7.0 and Adobe Indesign 2.0 have been used for all publications andthe work with producing these has been satisfactory.The effect of a good cooperation with the companies has resulted in that they are pleased with thepublications and feel that they have been part of the end of the results.All of the publications have been or will be printed with digital printing methods, which is the reasonfor the choice of the litterature survey.The survey deals with, among other things, how the digital press works, which papers that are suitable,economic aspects and what a graphic designer should have in mind when it comes to graphic productsthat will be printed with digital printing methods..

Syftet med uppsatsen är att bidra till ökad förståelse om samhällskunskapsundervisningens innehåll, genomförande och utformning på gymnasiet där digital teknik används.Fokus i uppsatsen har legat på att genom observationer och intervjuer i tre klasser och med de två lärare som undervisar klasserna få inblickar i hur lärare designar undervisning och hur elevrollen kan förstås när digital teknik används i ämnet samhällskunskap. Till hjälp för att analysera resultatet har analysmodellen Learning Design Sequence och i synnerhet  begreppen lärsekvenser och iscensättning använts. Det senare begreppet syftar på faktorer såsom lärarnas arbetssätt och tillgängliga resurser som präglar en lärsekvens, vilket kan vara elevernas arbete med en uppgift för att nämna ett exempel.Resultatet visar att datorer och Internet ofta i någon form ingår i lärarnas design av undervisningen. Exempelvis har lärarna genomfört genomgångar med hjälp av Powerpointpresentationer samt utformat uppgifter där elever ska använda sig av sina datorer. I elevrollen ingår bland annat att vara dator- och Internetanvändare men också av att anteckna och lyssna.

In this thesis, two real-time stereo methods have been implemented and evaluated. The first one is based on blockmatching and the second one is based on local phase. The goal was to be able to run the algorithms at real-time and examine which one is best. The blockmatching method performed better than the phase based method, both in speed and accuracy. SIMD operations (Single Instruction Multiple Data) have been used in the processor giving a speed boost by a factor of two..

Children and teenagers of today have grown up with digital media. According to Olle Findahl's report "The Swedes and the Internet" (2009), adults as well as children are online more and more. Our experience is that at many workplaces as good as everyone use computers and everyone is expected to have digital skills. However at most schools the reality is far from this. According to Findahl's report from 2009, 99 percent of all pupils (in Sweden) have access to computers and Internet, yet it is rare that they get school assignments where the use of Internet is acquired (Findahl 2009).The purpose of our paper is to understand how digital media can be used as a resource for learning, through the perspective of young people.

Today, digital technologies (DT) can be said to play an important role in the Swedish school system. The goal of this essay was to describe DT use by school leaders, in relation to their views on schools? goals and visions, and teachers? and students? use of DTs. Semi-structured interviews were conducted with five school leaders of secondary schools in Umeå municipality, Sweden. The results show that school leaders? use of DTs center on three key tasks: communication, information and administration.