SAAB Aerotech division FGR in Arboga builds and develops equipment and components used in both military and civilian applications. To build a test system for a specific project that SAAB is responsible for requires a simple signal generator that can provide a pulse modulated signal. The need to buy a new advanced signal generator for example from Agilent is not as profitable as the instrument is expensive and contains features that SAAB does not require in their applications and test systems. That was the reason why SAAB offers two students a thesis where the goal is to construct a signal generator in accordance with what SAAB requests.This thesis contains several different phases. The first step was a meeting with our supervisor Mats Bergman and by reading the data sheets for components to be used in the project, with these information and specifications that we have received from SAAB we started to construct the signal generator.What we did during the construction work was to simulate and draw a schematic to be able to design the circuit board.

Differences between groups or individuals in a society with regards to access to information and communication technologies (ICTs) are known as the digital divide. The digital divide pertains to differences in physical access to computers and the Internet as well as knowledgein using technology. Important factors affecting the digital divide are disabilities, age, gender, socioeconomical background, ethnicity and geography. The digital divide appears on several levels: internationally, nationally, regionally and locally. Individuals who, for some reason, have limited or no access to information and communication technologies risk, among other things, to experience social exclusion.

This exploratory thesis uses qualitative research to investigate how digital music is beeing packaged. The main study consists of 11 deep interviews with key representatives of the digital music industry in Sweden. These are (record companies) EMI, SonyBMG, Universal, Warner, (DSP) InProdicon, (mobile operators) 3, TeliaSonera and (cell phone producer) SonyEricsson. Packaging is a concept of marketing that has specific implications depending on which good or service that is being packaged. Packaging occurs at different levels in the production chain.

This work is an experimental study where knock sensor placements are investigated using engine tests. The aim is to studythe quality of the signal from knock sensors and how the signal for engine control is affected at different sensor locations on Scanias, engine DC13. To find out at witch position on the engine youcan get a usable signal for engine control, the engine is running while the knock sensors with advanced measurement equipment is connected to the engine. Evaluation of signals from the knock sensors are made in the computer program Matlab. The program is producing a seriesof plots, from these plots it is visually possible to draw conclusions and find connections.

In the wake of the electronic revolution digital library has become one of the central themes concerning libraries. The present study takes up the question whether digital library can function in the same way as the conventional library. The question can obviously be posed from different perspectives, e.g. technological-, the user-, or the organizational perspective. The study investigates if (and how) digital library can have the same functions as the traditional library.

AbstractThis report is about the creation of a test system for development of a control system for a off the shelf RC-helicopter, which can be bought for about two thousand SEK. The test system consists of both electronics for controlling the helicopter and mechanical constrainer. The constrainer is used for mounting the helicopter so that it won´t crash.A circuit board including processor and sensors was manufactured. This was used for doing test of the different control algorithms. In this way were we able to analyze the quality of the sensors chosen, and what other sensors that could contribute to the control of the system.Basic helicopter control have been studied and presented in the report.

This master?s thesis deals with integrating simulations using Agilents Electronic Design Automation tool ADS with customized Matlab scripts, for solving complex analog and digital radio architectures. In particular, it addresses predistortion, realized in the digital domain, of power amplifiers, modeled in the analog domain. The former is implemented in Matlab while the latter is implemented in ADS. Two versions of integrating the two systems have been tested: 1) Iterative approach on sample basis and 2) Scheduled batch solution by matrix inversion.

The purpose of this Master Thesis is to analyze what suitable hardware platforms there are on the market in order to build a low price control and information system for mobile applications, called small display module. The thesis will be underlying material for making a decision for further development. The result of the thesis consists mainly of a Windows CE kernel and a schematic for a CPU card, on which it would be suitable to build the display module. Another major part of the report is the introduction of different techniques that could be of interest when designing a processor based system. The processor architecture that was chosen is the x86.

Den här studien undersöker hur förutsättningar för lärande förändras genom digital humanities.Utgångspunkt för lärande hämtas ur designteoretiskt multimodalt perspektiv. Teoretiskutgångspunkt för att uppnå förståelse inom digital humanities är hermeneutisk teori. Studien hargenomförts med den öppna metoden litteraturanalys och analyserar antologin DigitalHumanities Pedagogy: Principles, Practices, Politics. Studien belyser digital humanities utifrånolika kunskapsskapande aktiviteter inom lärande och hur lärande kan främjas genom digitalaverktyg och inlärningsmiljöer. Studien belyser exempel på hur digital humanities ställer nyakrav på undervisning och den lärande samt att digitala öppna universitet med fri tillgång tillmaterial och undervisning, förändrar förutsättningarna för institutioner..

This study aims to research how digital media can be used for communication and information management between teachers at preschools and children?s homes. To get an understanding of this we have investigated which channels are being used and for what purposes. The interest has also been to explore preschool teachers and caregivers? attitudes towards digital communication in preschools.A qualitative case study of comparative nature has been conducted, where two preschools were selected because of their use and non-use of digital media for communication with caregivers.

Natural monuments are natural objects with special protection due to their high natural value or cultural significance. The natural value is determined by the occurrence of signal species found on and near the natural monument. The law surrounding natural monuments has evolved a lot since the first ones were declared, and today the title natural monument can be replaced with the title tree with high conservation value. The title has come later and can sometimes overlap natural monument. Some natural monuments lack the qualities required to be classified as a natural monument or a tree with high conservation value, but have a cultural importance.

This bachelor thesis is about an ultrasonic sensor, implemented in a bubble chamber in Artis. The sensor consists of the piezoelectric sensor and an electronic control circuit. The control circuit consists of a programmable microprocessor, PIC18F2420 and a circuit, which sends the excitation signal to the piezoelectric sensor, and later receives the echo. This bachelor thesis consists also of a theoretical study, which examines different techniques of liquid level sensing in a chamber. The study discusses which factors are important in liquid level sensing and examine accepted methods.

The use of digital technology in preschool has been a question aboutif it will be used. By the new curriculum for preschool, it now is a question about how it will be used. My experience shows that many pedagogues are still afraid that the children will miss the interaction whit other children when they are using digital technology.The aim of the study is to see if it is social for the children to use digital technology in preschool.This study is made by inquiry, qualitative interviews and observations.My result shows that children are social active with each other while using digital technology. Turn taking and time determines who will play and what the conditions are. The thesis concludes that children perform social interaction when using digital technology.

Digitala kompetensportföljer ökar i popularitet och deras användningsområde har under de senaste åren ökat. En digital kompetensportfölj kan demonstrera en individs framsteg, prestationer och hjälpa till att visa upp hur väl en student behärskar den kompetensen som krävs inom ett visst yrkesområde. Forskning pekar på att designkompetens och designförmåga är någonting som är svårt att fånga samt förmedla då en stor del av en designers designprocess genomförs inne i huvudet på designern. Jag har genom en kvalitativ studie, intervjuat olika roller gällande deras tankar om hur designkompetens kan utvecklas och synliggöras. Studien resulterade i riktlinjer hur en digital kompetensportfolio kan stödja utveckling och synliggörande av designkompetens..

In many clinical applications, it is desirable to transmit sensor information wireless. In earlier research, investigation transmit ECG signal using Bluetooth, was performed. However, when Bluetooth has some drawbacks it is of interest to investigate alternative methods, one such method is ZigBee. Bluetooth has higher data rate speed (1Mbps) than ZigBee (250kbps). However, Bluetooth consumes more power.