The purpose with the report is to show that it is possible to design a class-D amplifier, using a programmable FPGA mounted on a developing card from Xess and a H-bridge. The FPGA was programmed in VHDL which is the language the software from Xilinx use to implement a logical function into the FPGA The logical function corresponds to a modeling of the music signal and the modeling can be described as a comparator which compare the music signal with a triangle wave and as a out signal produce a pulse width modulated (PWM) signal. The report is also a review and evaluating of two different modulating technologies, AD- modeling and BD-modeling. A detailed part about how the H-bridge was designed and how it works. The result of this project is a working audio amplifier to a significant lower price than the products in todays market..

The Disney princess line includes nine films, in our study we have extended this line to include the latest three films from Walt Disney Pictures that follow the same pattern. These films are Tangled (2010), Brave (2012) and Frozen (2013). We have conducted our study using the same method used by England, Descartes and Collier-Meeks (2011) in their study of the first nine films, starting with Snow White and the Seven Dwarfs produced in 1937 to Princess and the Frog from 2009. A quantitative study was executed where we focused on gender role portrayal, the main characters behavioral characteristics and performed rescues. We applied the following theories to our result; the Social Constructivism, Laura Mulvey?s theory of the Male Gaze, Michel Foucault?s theory of power and discourse, intersectionality and Claude E.

Today?s climate research shows that the climate may increase its temperature. One sector that is being threatened by global warming is the winter tourism of the Swedish municipality A?re. Tourism is an important economical source of income in A?re and is now threatened by a shortened winter season.

Free2Move AB is developing products for the market within wireless communicationand identification, among those active RFID-tags. The company had an idea aboutproviding one of their active RFID tags with a GPS receiver and transmit positions viaan existing RFID protocol. Desire from the company was also the possibility to logpositions and measure temperature. The finished prototype should also be able to beactivated by movement. The company had proposal about components that were to beused in the project.

Systemet som förenklar hantering och information av tidrapportering, projekt, kunder, lager och anställda. Syftet är att företaget skall få en mera överblick över deras verksamhet, då all information samlas på samma ställe. De anställda kan via webben snabbt och enkelt rapportera in deras arbetstider under den gångna veckan. Systemet innefattar: SMS-tjänst, automatiskt utskick, hanteringen för lager, projekt, kunder och semester, kontinuerlig statistik med grafiska diagram samt utskriftsfunktioner. Allt är utvecklat i PHP och MySQL..

This report describes a thesis done at the Jönköping University of Technology. The aim of this thesis was to create conditions to optimize an existing automatic electrostatic coating system by changing the technology for dispensing lacquer. To select the technology, a study of different dispensing techniques carried out which concluded that the piezoelectric membrane and electrostatic atomization are the most interesting techniques.In order to perform tests with dispensing techniques a demonstrator has been optimized. The controller and PC software of the demonstrator has been programmed to be able to send out PWM signals that control the dispensers. An adapter card was designed to control the piezoelectric membrane and a steering link to the electrostatic atomization has been developed for PWM signals up to 500V.The work has laid ground for a demonstrator where further testing of the dispensing technologies can be performed..

Every municipality in Sweden is responsible for offering its citizens adequate childcare. Parents hand in a preliminary schedule to the preschool for when their child needs to be in childcare, and based on this the preschool staff is scheduled. Some municipalities measure the actual time a child is in childcare. The essay idea comes from when I heard that one municipality was thinking of register the children's actual time in preschools. I started thinking on how to solve such a task.

This report describes the manufacture and control of a flying platform. The report describes the basic and fundamental theories required to get the platform flying. It touches on subjects such as A/D-conversion. PWM-control and PID-control. The sensors used in the platform are a gyro and an accelerometer.

The competitive nature of the automotive industry has always implied a necessity to improve product development concerning time-to-market, cost and product quality. As capacity of computer-aided engineering (CAE) tools has evolved, so has the strive for simulation-driven design. Virtual durability testing using full vehicle models is one of many challenges posed in front of vehicle manufacturers when computer simulations are given a key role in product development.This thesis has been initiated as a preliminary step towards implementing dynamic virtual durability testing in the development of buses and coaches at Scania. The objective has been to assess the predictability of a full vehicle coach model and to what level of precision structural loads can be predicted. Previously performed proving ground testing of a Scania Touring coach has been the basis for the modelling and simulations in this thesis.A virtual model of the Scania Touring coach has been created in multi-body simulation software package MSC.Adams.

This report present the design and manufacturing of a wide-band driver amplifier placed in radar module for airborne applications. The major goals for the amplifier were a high efficiency and to deliver a predefined output power. To reach the second goal an additional preamplifier had to be constructed. The amplifiers were constructed in three steps: Design and Layout in the software Microwave Office, Mounting components and Verification. The driver amplifier was decided to be a push pull configuration consisting of two parallel transistors biased in class AB.

Arktis är den plats där den globala uppvärmningen är som mest märkbar på hela jorden (Arktiska rådet). Därför är Arktis ett intressant område att studera ur klimatsynpunkt. Enligt Gore (2006) så kan en ökning av jordens medeltemperatur på 1,5 °C leda till att de ekvatoriala områdena får en temperaturökning på 0,5 °C medan temperaturen vid Arktis kan stiga med hela 6 °C. De senaste 30 åren har medeltemperaturen vid Arktis stigit med drygt en grad per decennium (Anisimov, 2007) medan den globala medeltemperaturen för samma period endast stigit med ca 0.15 grader per decennium.Arktis tros ha varit isfritt under en värmeperiod för ca 6000 ? 8500 år sedan (Founder, 2011) men det som är unikt med den aktuella situationen är att avsmältningen går så snabbt.

A customer of Sekonden IT is to replace the current setup authoring process for a program called PropCalc with a new process based on a setup authoring tool with high quality and usability.The report aims at present a suitable setup authoring tool for PropCalc by making use of a structured evaluation process evaluate the setup authoring tools on the market.Olof Næssén presents a process for evaluating web frameworks for Java in his thesis Utvärdering av webbramverk för Java. The evaluation process is adapted in the report to generally suit evaluation of software. After adjustment to the evaluation process an evalutaion is performed evaluating the currently available setup authoring tools.The evaluation will show that the most suitable candidate for PropCalc is InstallShield Premier but that the candidate that is finally chosen is WiX..

Today there are commercially available databases with active features, i.e. active mechanisms are available for development of information systems. But the usage of active mechanisms is low in practice. This is due to the insufficient methodological support in analysis and design for developing ECA rule based software. It has been proposed that one of the most suitable ways to tackle this problem is not to develop new methods but to extend existing methodologies.In this thesis an extension of the Object Modeling Technique (OMT) is developed, called OMT-A, which is able to model active rules.

Softube has developed DSP-card and software for simulation of the sound of old tube amplifiers. The purpose with this thesis is to design a compact amplifier with high power to function together with the DSP-card and build a unit that can replace several other guitar amplifiers. The advantages with that kind of solution could be that it would be cheaper, easier to carry and easier to stor than the real amplifiers. The amplifier that has been designed is of class D type with digital PWM modulator. There is several types of amplifier modules on the market that use analog input signal, but if one of them would be used a D-A converter is needed on the DSP card.

Denna rapport är resultatet av ett examensarbete inom Industriell Produktion vid KTH, utfört vid Avalon PLM AB. Syftet har varit att grundligt utreda vad som krävs för att sätta upp en "first line"-support för användare till Siemens Industry Softwares produktportfölj. Målet med examensarbetet var att ta fram en kravspecifikation för det system som ska hantera kundernas supportärenden, samt hitta och utvärdera ett befintligt system som lever upp till kraven. Vidare togs också en support- och ärendehanteringsprocess fram, vilken beskriver hur ärenden ska skötas.Inledande frågeställningar för examensarbetet var frågor som; Hur hanteras ett ärende? Hur många ärenden kommer supporten hantera per dag? Hur kan supportingenjören få hjälp om ärendena är för avancerade? Är kundsupport bara en kostnad för företaget eller vilka bieffekter kan det medföra?En litteraturstudie gjordes för att få grundläggande förståelse för olika typer av supportkällor, CRM, kunskapsförmedling, syftet med kundsupport och supportingenjörens roll.