The purpose of this work is to find out if the suctionvalve to the salivaejector for dental equipment in a simple way can be improved or if a new design is needed. The result of the examination of the suctionvalve shows that the friction between the piston and the seal is high and that this causes the valve in a few cases sheaves. The study concluded that only small changes in material or detail, improve the component..

Det här examensarbetet utfördes från februari till mitten av april, våren 2010 på företaget Junebud. Jag arbetade efter hypotesen att en stark närvaro på sociala medier har en positiv effekt på aktiviteten på spelets hemsida samt för att få nya spelare att hitta till spelet. Spelet som marknadsfördes heter MilMo och är ett socialt massivt multiplayer spel för barn och ungdomar, som är gratis att spela. Om spelaren vill få tillgång till extra material kan han/hon betala en mindre summa pengar men något köptvång föreligger ej för att endast spela. För att genomföra marknadsföringen på de sociala medierna valdes fyra stycken nätverk på Internet ut; Facebook, Deviantart, MySpace och Youtube.

Tractors of today come equipped with a CAN-system. A CAN-system sends information from sensors to electronic control units who process the signals. The sensors measure several interesting parameters such as force, pressure and speed for various components of the tractor. This thesis discuss a force sensor which is placed in the pivot of the tractors three point linkage, the sensor measure the horizontal reaction force from the load that the tractor is exposed to. Signals from this sensor can be used to measure the force from any implement that the tractor is exposed to during an operation.

Det konstrueras i stor utsträckning bristfälliga detaljlösningar på byggnader i dagsläget. Den bärande stommen i konstruktionen prioriteras ofta medan det inte ägnas lika mycket fokus åt att tillgodose de byggnadsfysiska aspekterna. Anledningen till de bristfälliga detaljerna är även att den som utför arbetet saknar rätt kunskap och tid. För att skapa en förbättring behövs ett hjälpmedel!Kunskap och erfarenhet om hur bra detaljer skapas finns redan i företag, svårigheten är dock att sprida kunskapen till de som är i behov av den.Målet med denna rapport är att skapa en metodik som blir startskottet för ett omfattande arbete kring framtagandet av ett detaljbibliotek, vars syfte är att sprida byggnadsfysiska kunskaper inom företaget och inspirera konstruktörer till att konstruera bra detaljlösningar. Biblioteket ska innehålla byggnadsfysiskt utredda detaljlösningar som analyserats enligt den utarbetade metodiken.

During spring 2009 a three meter tall and laughing robot was developed in collaboration between Royal Institute of Technology and Royal University College of Fine Arts. The robots function and esthetics is based on an existing toy robot called Elmo. Elmo is 30 cm tall but now the goal was to make it 1000 times bigger in order to present it on the spring exhibition of Royal University College of Fine Arts. Due to only four months of developing and building time a demand of fast determination and good planning was required. In order to make a good structure for the project it is divided into five phases: Analysis of Elmo, planning, concept development, detail construction and finally product development and testing.In the first phase valuable knowledge is obtained according to the movements and geometry of Elmo.

Företaget Cibes lift AB tillverkar skruvdrivna plattformshissar i olika storleksklasser för laster upp till tusen kilogram. Plattformhissar är ett mindre utrymmeskrävande alternativ till vanliga standardhissar och lyder under EU:s maskindirektiv. Masskonsumtion och prissättning tvingar företag att utveckla nya strategier för att hantera större flexibilitet och lägre tillverkningskostnader. Då även Cibes jobbar kontinuerligt med att kostnadseffektivisera sina produkter hade arbetet till syfte att göra en omkonstruktion av den bärande ramen till företagets standardmodell A5. Den nya ramkonstruktionen skulle utvecklas med avseende på kostnadsreducering, moderna tillverkningstekniker och hög tillverkningseffektivitet.

Quadrotor UAVs are self-stabilizing, autonomous flying machines that has recently become more popular than ever. Unmanned Aerial Vehicles have their roots in the military, where they were developed for use in reconnaissance and combat. During the last few years, advances in the fields of electronic sensors, electric motors and microcontrollers have enabled smaller designs and autonomic flight control even for private use. The quadrotor, which is the particular kind of UAV we are looking closer at in this paper, has 4 rotors in an X-like formation. This configuration has many advantages such as good lift capacity, non-complex mechanical structure and serviceability.In this project we aquired a current overview of the domain and determine whether it is possible to construct a quadrotor UAV designed for use in a WISENET sensor network on a low budget and short time schedule.Based on existing community project AeroQuad, a quadrotor is constructed with a budget of about 500 euro.

Tobii Technology AB is a global leading company in eye tracking. The technology is a part of acomputer screen called an eye tracker. It enables computers to follow eye movement whichfurther make it possible to control the computer by only using your eyes.The mission was to develop an arcade game for eye controlled games that Tobii can use in theirmarketing or as a tool when doing researches about the interest in the technology amongst gamecompanies. The product realization involved designing an innovative, functional and futuristiccase which gathered the existing hardware and software to build the final prototype. In order toattract users it was important to focus on the visual expressions.Initially, the project started off with an information retrieval which contained interviews, fieldstudies, tests and literature studies.

This essay is about how islam is illustrated in textbooks of History in Sweden during 1980-s and first decade in 2000.  This study does not aim to give all answers about those tendencies, but it will lift up and discuss this issues.The essay has two questions to answers. They are:1-      How does textbooks from 1980-s and 2000-s illustrate Islam?2-      Do we see any tendencies of Orientalism in textbooks?The most focus in this study will be in first question, because this question is more open and need more empirical material to answer. The second question is more specific and has to do with first questions results. The first part of off essays investigation has to do with description of what textbooks writtes about Islam. After this I will compare and analyze what differences they are between textbooks from 1980-s and first decade of 2000-s.

In order to detect movements and vibrations on different appliance, especially robots and self-going devices are used different sensors. One of the most used movement sensors are accelerometers. They are three different types of accelerometers one-axes, two-axes and three-axes. They can be analogue or digital. Husqvarna AB uses an accelerometer to detect movements of their self-going lawnmower Automower.

The project is a thesis which intends to strengthen the form language and increase the user friendliness of an International Moth. This is a single handed dinghy with only one sail. It sails on two hydrofoils and receives a very high speed compared to its size, and are therefore often referred to as ?the Formula One on water ?. The result is a new concept where the aerodynamic forces have been used to stabilize the boat and relieve the hydrofoils.

Quadrotor UAVs are self-stabilizing, autonomous flying machines that has recently become more popular than ever. Unmanned Aerial Vehicles have their roots in the military, where they were developed for use in reconnaissance and combat. During the last few years, advances in the fields of electronic sensors, electric motors and microcontrollers have enabled smaller designs and autonomic flight control even for private use. The quadrotor, which is the particular kind of UAV we are looking closer at in this paper, has 4 rotors in an X-like formation. This configuration has many advantages such as good lift capacity, non-complex mechanical structure and serviceability.In this project we aquired a current overview of the domain and determine whether it is possible to construct a quadrotor UAV designed for use in a WISENET sensor network on a low budget and short time schedule.Based on existing community project AeroQuad, a quadrotor is constructed with a budget of about 500 euro.

This essay is about how islam is illustrated in textbooks of History in Sweden during 1980-s and first decade in 2000.  This study does not aim to give all answers about those tendencies, but it will lift up and discuss this issues.The essay has two questions to answers. They are:1-      How does textbooks from 1980-s and 2000-s illustrate Islam?2-      Do we see any tendencies of Orientalism in textbooks?The most focus in this study will be in first question, because this question is more open and need more empirical material to answer. The second question is more specific and has to do with first questions results. The first part of off essays investigation has to do with description of what textbooks writtes about Islam. After this I will compare and analyze what differences they are between textbooks from 1980-s and first decade of 2000-s.

Our employer Camatec Industriteknik AB gave us the assignments to increase theirs range of versions on Camcoil that is their own patent product. Camcoil is a capstan system that is used when steel band fabricated. Exist for example in production lines their steel band should be annealed. Our goal with this work is to come up with a completed production basis on a Camcoil for heavy industry. The basis should contain calculations, 3D-constructions, drawings and cost proposal on manufacturing and detail purchase.Demands on this project:1.

The purpose of my project is to determine how a multimodal/intermedial text can be used when teaching in upper secondary school. Can using a text that to some point is current in the pupils? lives lift the interest for the specific subject? I opted to pick up Gunther Kress? research, Diana Laurillard?s book and Christina Olin-Scheller?s work on the subject. I have used several hours of lesson planning and the lesson itself with subsequent work consisting, among other things, of three qualitative interviews to achieve my purpose. Based on a qualitative approach, I discuss the results, which show that it is in fact very uplifting.