The purpose of this project was to further develop and complete a quadcopter that had been built in an earlier course at KTH, so that it could be used for demonstration and education at the school. The quadcopter was at the beginning of the project completed when it came to hardware, and there was some software functionality implemented but no system for automatic stabilization. The main goal of the project was to implement such a system, and to combine it with the previous functionality to make the quadcopter operable and able to fly. To create a functioning and stable ground multiple basic software features has been implemented, and on top of that additional software to improve the safety, stability and functionality. The most important part is the control system that is responsible for converting sensor and control signals to suitable motor values.

The aim of this studie is to describe, analyse and understand the benefits and disadvantages with using digital tools in education. In my qualitative method three primary school teachers were interviewed about how digital tools should be used in educational purposes, also what benefits/disadvantages they could see with the investment of digital tools in their school. I also did observations in two classrooms and interviewed a school politican to get a wider perspective. The collected information identifies that some benefits of using digital tools is the contribution to a more equivalent education, more opportunites for cooperations and that fewer pupils have to struggle with their fine motor skills when producing a text. Some of the disadvantages with using the tools is that they breaks sometimes, it´s easy to get dependent and if something happens (like power outage) it´s unusual that schools have a good an action plan.

The electric vehicle market has potential to contribute to Sweden?s national goal to have a fossil fuel independent transport sector by 2030. However, the market answers to a lot of challenges making it difficult for the market to fully reach its potential. The volume of electric vehicles has seen a steady increase during the last year (2012), although many of these vehicles are mostly for PR purposes or bought by the public sector that wants to lead by example. Still, barriers in the form of high purchase costs, an anxiety for the limited battery capacity and the lack of standardisation are some of the problems that the market is struggling to solve.

För att kunna styra en motor krävs bland annat ett tändsystem. Detta tändsystem måste klara av att ge rätt energimängd vid rätt tidpunkt. Mekaniska och tidiga elektroniska tändsystem som konstruerats är inte tillräckligt effektiva. För att få möjlighet till enkel men bättre optimering av effektivitet konstruerades ett kapacitivt tändsystem. Detta system använder en mikrokontroller som beräknar tändfördröjningen.

Målet med detta examensarbete var att utveckla en fungerande prototyp för styrning av ett portabelt filter med varvtalsreglering och tidräkning. Om möjlighet fanns, skulle även tillval som tryckstyrning, gasindikering och flödesmätning göras. Dessa tillval kunde regleras med hjälp av fyra knappar. För att allt skulle vara lättare att hålla under uppsikt, kunde alla inställningar och värden ses på en LCD-display. Konstruktionen består av en mikrokontrollerstyrd elektronikkoppling med extern realtidsklocka för drifttidsräkning.

The purpose of this thesis has been to build a parameterized model of a prototype motor in the program Solidworks, to use in future optimization of aspects of effectiveness and weight. The result were two models. The first model were one minor part of the whole design in 2D, to be able to optimize and study the minor part with a faster loss simulation. The second model was the whole design in 3D. The whole model were done with the three programs Solidworks, Comsol and Matlab.

Den här rapporten beskriver arbetet med en automatiserad provrörsförflyttare. Det är ett examensarbete som har gjorts på företaget Q-linea AB. En karuselliknande konstruktion med en stegmotor användes för att flytta prover mellan ett antal positioner. En mikrokontroller som hanterar styrning och sensordata har programmerats i C. LabVIEW och en USB-kamera har använts som hjälp till att göra utvärderingar och tester av systemet.

Examensarbetet beskriver analys och testmätning för att mäta uttagen effekt ur en motor som driver en massasil. Silen är bland annat avsedd för att separera föroreningar och större partiklar i pappersmassan. Ingående metoder förklaras med avseende på princip, funktion och begränsningar. Vidare testas metoderna operativt i industriliknande miljö och dess fördelar respektive nackdelar belyses. Metoderna ställs mot varandra och jämförs gällande pris och prestanda.

Föreliggande rapport är avsedd som ett examensarbete i elektroteknik (20p).Syftet med arbetet är att skapa en applikation för att finna störningar pålågspänningsnätet upp till 95kHz. Bakgrunden till arbetet kommer frånenergibolagen som vill kunna skicka datainformation direkt pålågspänningsnätet, detta vill de kunna göra med hastigheter mellan 2k ? 5kHz. Beroende på med vilken hastighet man vill skicka information kan störningar mellan givna frekvenser hindra datatransmissionen, därför är detviktigt att hitta vid vilka frekvenser störningarna uppstår så att lämpligaåtgärder kan vidtas.Grundläggande delar i applikationen är ett oscilloskop för mätning, dator medGPIB- kort för upptagning av data och LabView programvara för hantering avdata. För frekvensanalys kommer Fast Fourier Transform, FFT, att användas,varvid en grundläggande beskrivning kommer att medfölja..

Valmets own foundry in Karlstad has during a long period of time had problems being profitable. The goal today is to turn this around. Today there are three different productionlines; engine blocks, Yankeecylinders and components for the wind turbine industry. This master thesis has focused on examining if value stream mapping is a useful tool to use in a foundry, and therefore outside the typical manufacturing industry. The target has also been to evaluate if there is a possibility to improve the flow in the foundry and also the results.During the 20 weeks this work has been done at the foundry data has been collected and analyzed.

The purpose with my project is to evaluate how Recreational Leaders use the outdoor environment, how much they use it and why. My method was to assemble the surveys which were answered nationally by Recreational Leaders. During my project I have investigated Recreational Leaders view on the outdoor environment by reviewing a survey. Those who answered the survey find that the desire to use the outdoor environment exists; they think that the benefits of moving the teaching process outside are plenty. The children receive fresh air, they get to practise manual ability and gross motor functions, stay healthy and are able to use their imagination and creativity.

Detta arbete avslutar magisterutbildningen inom Industriell design vid Luleåtekniska universitet. Arbetet har utförts på uppdrag av Agency-9, utvecklareav Javabaserade 3D-motorer. De har tekniken för att producera dataspel avtoppklass men ingen grafisk formgivning och produktion, och är i stort behovav att få igång detta. För att visa upp funktionaliteten i deras 3D-motorAgent FX vill de även ta fram ett demo. Metoderna som använts under arbetet baseras på teorierna om systematiskproblembehandling som lärs ut vid Institutionen för arbetsvetenskap, LTU.

 Autonomous cars or robot cars havebeen on the agenda ever sinceHollywood started with their Sci-Figenre, maybe even before that. A lotof things have happened since then andnow the self-driving vehicle is notfar away. In this project, theAutonomous car with microcontrollerand ultrasonic sensors, we are lookingat a way of making a small, regular RCcar autonomous with relatively simplemeans and investigate how the bigcompanies does it to learn more aboutthe development of the autonomous carsand their technology.We used an Arduino Uno R3 supplementedwith an Arduino Motor Shield R3 as ourmicrocontroller board and three HCSR04ultrasonic sensors. By removingalmost all of the old parts of the RCcar,except the two DC motors, andreplacing them with these new parts wemanaged to make a vehicle that drovearound in a room without crashing intoanything. We could have used entirelydifferent sensors, or supplemented theexisting setup with other sensors tomake it even more accurate andobstacle avoiding.

The aim of this study was to review scientific articles to evaluate which nursing treatment are in use to ease problems such as dysphagia, mucositis and xerostomia and its efficiency. The method was a literature review in which the scientific articles where found in the database PubMed. A total of sixteen articles where included, these articles where analyzed based on their quality and contents. The result showed that electrical stimulation and rehabilitation was used against dysphagia, they both had a doubtful effect. Mouth washes was commonly used to reduce mucositis; triclosan mouthwash, benzydamine mouthwash, sacralfate mouth wash, povidone-iodine and salt-sodium mouthwash showed effect.

Petro-electric IFVs (Infantry fighting vehicles) or hybrid-IFV?s are not a new phenomenon. During the 1900?s Germany as well as the U.S both tested vehicles constructed with hybrid technology. In spite of several identified advantages, no serving hybrid-IFV exists today.