The aim and goal of this work has been to design and implement a voltage reference network for a 12-bit PSAADC, Parallell Successive Analog to Digital Converter. A chip containing the design has been sent away for fabrication. Because of the long processing time, no measurement data are presented. The main specifications for the voltage reference generator is to generate stable reference voltages with low noise and a good PSRR. Efforts has also been made to minimize the power consumption..

Abstract CORDIC (Coordinate Rotation Digital Computer) is an iterative algorithm for the calculation of a two-dimensional vector in circular, linear or hyperbolic coordinate systems. This paper presents a survey of known CORDIC algorithms and architectures for the rotation and vectoring mode in the circular cordinate system. In addition an implementation of the differential CORDIC algorithm in VHDL has been done. The implementation is designed to keep the fast timing and throughput characteristic known for on-line redundant arithmetic..

A vehicle that carries a person sitting in a wheelchair has been rebuilt. The original vehicle was provided with a petrol engine, hydrostatic drive and a mechanical steering rod, making it noisy and hard to maneuver. The purpose with this project was to convert the vehicle to make it more environmental and easier to drive.A new design has been proposed where an electrical drive has replaced the noisy combustion engine and an electrical motor with joystick control has replaced the manual steering.The project was divided into two parts. One mechanical part where the construction of the drive and steering were to be decided. The other part involved programming the microprocessor and implementation of all the necessary electrical for the control system of the vehicle.

Introduktion: Skolios som drabbar barn och ungdomar ger en krökning av ryggraden i sidled. Upprepade undersökningar med joniserad strålning av främst flickor i puberteten innebär risk för bröstcancer. Genom att på olika sätt optimera undersöknings metoderna och använda skydd till patienter kan biverkningarna minskas. Syfte: Syftet med studien var att genom en systematisk litteraturöversikt sammanställa vilka metoder och röntgenparametrar som kan användas för dosreducering i samband med radiologisk skoliosundersökning av barn och ungdomar. Metod: Studien utfördes som en allmän litteraturöversikt.

Tidigare forskning har visat att systematisk självrapportering är en fördelaktig metod för att följa enpersons psykiska mående över tid, och att en digital mätmetod i sin tur skulle innebära många praktiskafördelar jämfört med en analog. Detta är en experimentell randomiserad, kontrollerad studie som medutgångspunkt i personcentrerad vård och spelifiering undersöker 35 personers användarfrekvens ochattityder efter en tvåveckorsperiod där hälften har fått prova att självskatta sitt psykiska mående via enmobilapplikation, och hälften fått göra detsamma via ett analogt stämningsformulär. Resultatet visar enhögre användarfrekvens bland deltagarna i mobilapplikationsgruppen, samt ett uttalat intresse hosbägge grupper för digitala metoder för självskattning av psykiskt mående. Bägge metoderna ansesstärka personcentrerad omvårdnad. The aim of this study is to explore user frequency and attitudes for persons using a mobile applicationfor assessing mental health compared to persons using an analogue assessment method.

This rapport aims to examine the difficulties in presenting a complex game in a way that will invite new players by making the game more accessible. We discuss and present our process on how to create an application named ?Digi?-war that is easy and fast to, both, learn and use. Our solution to this issue includes RFID-tags and readers together with four buttons, as input devices. This simple input device, placed in a gun-type control unit, aims to provide an intuitive interaction..

På uppdrag av Tidningsutgivarna har en studie utförts angående olika möjligheter att införa tryck av variabeldata med tryckmetoden inkjet i svensk dagspress. Målet var att undersöka tekniska möjligheter och begränsningar samt att utreda om det fanns något intresse på marknaden som skulle kunna ge någon avkastning. Studien utfördes med hjälp av noggranna källstudier och ett fortlöpande samarbete med olika företag med intresse för dagspress. Rapporten beskriver också företag som arbetar med den här typen av innovationer idag och diverse tidigare projekt med variabeltryckta tidningar. Nya teknologier som eventuellt kan vara av intresse för framtida utveckling har också beskrivits och hur tidningens framtid kommer att se ut ur ett kortare och ett längre perspektiv.Studien visar att inkjetpressar inte klarar av den hastighet som de moderna tidningspressarna håller idag.

The purpose of this study is to investigate how to use remote sensing data when making a forest management plan. The main focus of the study is to compare different methods to identify forest stands of a forest property, and by manual measures and estimates try to evaluate the quality of interpreting data. This report is based on survey questions sent to five different organizations working with remote sensing data. Only two of these where willing to participate in this investigation. The organizations where asked to analyze the same forest property and divide into compartments and make estimations of volume, basal area etc. in every stand.

Hede Wilkens, Julia & Helena Nilsson. (2005). Blommor och bild. Ett fördjupningsarbete om tolkning av kursplaner i ämnena Hantverksteknik och Rörlig bild. (Flowers and images.

This thesis is based on design theory about how to build an application for the mobile platform, a scientific analysis and an application for grocery shopping and meal planning. The thesis also contains a valuation of the research and of the application. The valuation of the application was done by a usability test and an analysis of the results of the test.The application of the thesis has an easy navigation system, which is time saving and simple to use. Finding recipes with the associated ingredients is a quick fix. The search function can be used for searching freely after recipes as well as for separate ingredients. That makes it possible for the user to create own recipes from available ingredients.

A distributed hydrological rainfall-runoff model has been developed using a GIS integrated with a dynamic programming module (PCRaster). The model has been developed within the framework of the EU-project TWINBAS at IVL Swedish Environmental Research Institute, and is intended for use in WATSHMAN ? a tool for watershed management developed at IVL. The model simulates runoff from a catchment based on daily mean values of temperature and precipitation. The GIS input data consist of maps with soil type, land-use, lakes, rivers and a digital elevation model.

The aim of this university paper was to understand how eight former clients at Staple reformatory had experienced their stay there. The clients at Staple are young people between 13-20 years old, both boys and girls.The basic questions were: What picture do the clients have of the treatment they received?What has been, from their perspective, the most important during their stay? Do the clients think the time spent at Staple has helped them? And how do they describe their change, if there was any?We gathered the information from the youngsters with qualitative interviews based on a manual divided into covering different themesWe found that the time at Staple had been very positive for all the former clients that we interviewed. They described the relations with the staff at Staple as central for their rehabilitation. The most important task for the people that work there is to set a good example for the client, and to be role models.

Skolverket har under våren 2010 tagit fram en ny rapport om IT användning och ITkompetens bland elever på grundskolan. Rapporten visade en positiv utveckling bland elever i skolåren 7?9 men bland elever i grundskolans tidigare år var resultaten inte desamma. Syftet med denna studie är att utifrån en utbildningspraktik förstå konsekvenserna av hur pedagoger resonerar kring värdet av att vara informationskompetent. Ett begrepp som innefattar sökstrategier, en källkritisk medvetenhet och allämna kunskaper på och om Internet.

The aim of this study is to examine if library and archive will meet professionally in digitization projects. The study has been conducted as a discourse analysis in accordance with the methods of Norman Fairclough, professor of Linguistics at Lancaster University. The texts are seen as linguistic and semiotic elements of social events that can be analyzed as parts of the social process ? discourse. The relationship between events and structures in society will be part of the social practice.The basic data derive from five public documents collected from Swedish government agencies.

Denna uppsats underso?ker hur artisten Jaqe har kunnat sprida sin musik och sitt varuma?rke via sociala medier utan att ha na?gra konton pa? sociala medier registrerade i sitt namn, eller o?verhuvudtaget vara aktiv pa? na?tet.Syftet med uppsatsen a?r att underso?ka ett ho?gst ovanligt marknadskommunikationsfenomen som tycks motsa?ga ra?dande normer inom musikbranschen, fo?r att belysa huruvida man kan bedriva effektiv marknadskommunikation via sociala medier utan att o?verhuvudtaget vara aktiv online. Detta underso?ks genom att kartla?gga och problematisera Jaqes strategi samt ja?mfo?ra den mot Sveriges tva? sto?rsta skivbolags digitala marknadskommunikativa praktiker. Empirin besta?r av fyra kvalitativa expertintervjuer.