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.

Museums are a part of the cultural sector that over the last couple of years had to compete with the steadily growing consumption of spectacles. New techniques to attract and amaze the visitors have evolved. Living History Museums has developed a method to simulate past times by building up an environment with reconstructions. History is a non-definite science, there will never be an exact answer to how it really was, for example during the Middle Ages.This essay deals with the difference between reconstructions and authentic artefacts and how they build up an illusion of the past. In what sense does it matter if the artefacts are genuine or not? How do these museums deal with anachronistic phenomena from today's modern world in the historic environment? Additionally I discuss whether or not these reconstructions - of environment, buildings and personal characters - have any influence on the historic narrative given by the museum.

New high strength steels require improved cold rolling techniques. The aim of this degree project was to develop a new and money saving cold rolling technique to manufacture steel strip for saw blades. The work is based on earlier rolling experiments made with a high carbon steel grade at LuCoil Steel AB. The work also focused on the mill requirements to cold roll high strength steels. The results show that LuCoil?s existing cold rolling mill was actually designed for rolling low carbon steel.

This thesis was performed at SverigeGrepen AB. SverigeGrepen is a company that hasone product on the market; a manure fork that is designed to be used for mucking inshavings or peat. The aim of this thesis was to develop a new manure fork that isadapted to be used in straw.The development started with a pilot study where experience of mucking wascollected to be able to understand what and why certain characteristics are importantfor the function and use of the manure fork.A basic concept was developed where the main function was fulfilled, which meantthat a separation between dung and straw could be performed in a way that wasbeneficial for the user.The work resulted in four concepts of how a manure fork could be used in the strawthat can be designed and constructed. The conclusion that the work gave was that allconcepts met the main requirements required by a manure fork to use in straw.However, concept four provides a good visual impression, while its benefits areassumed to be important qualities..

TFT (Thought Field Therapy) och EFT (Emotional Freedom Techniques) är två energipsykologiska metoder som använts vid ångestproblematik. Energipsykologi är ett samlingsnamn för metoder med influenser från bland annat traditionell kinesisk medicin. TFT och EFT har diskuterats som ett komplement till vedertagen behandling vid traumatisering. Föreliggande uppsats syftade till att undersöka området energipsykologi och belysa TFT och EFT för traumabehandling. Datainsamling genomfördes i två steg genom en litteratur- och intervjustudie, som jämfördes med varandra.

The focus of this thesis is primarily in electronic construction and describes the design process for a microcontroller circuit board from concept development to prototyping. The client develops test fixtures for automated testing of products within the electronics industry and needs a new controller circuit for the test fixtures that can handle controls and basic testing. An investigation into the needs of such a system is conducted and a prototype printed circuit board assembly is manufactured.The prototype is developed with focus on protection against electrostatic discharges and overvoltage. Among the functions that are included are voltage measurements, communication interfaces and control of input and output currents. Firmware for the prototype is developed and configured to communicate with a PC through USB interface for control and collecting of measurements..

This paper discusses the feeling of insecurity in educational exhibitions. The study analyzes one exhibition at the museum ?Nordiska Museet? in Stockholm, and strives to answer how the question of spatial factors can influence the feeling of insecurity, and thereby also the information process.The following questions have been addressed: Can we speak of a spatial allocation problem of exhibitions that contain much information? What is the relationship between the exhibition's intention and visitors conduct A model has been designed with influence from wayfinding where the exhibition is divided into basic parts, which allows a detailed study of the exhibition, and of how the parts relate to each other. The research contains spatial analyze, observations as well as interviews.The conclusion is that we, in the scientifically investigated exhibition, can speak of a spatial allocation problem when the information seems to be an overload for the visitor..

This thesis will address a problem concerning availability of information systems at an enterprise within the financial sector and its external suppliers, so called trusted third party. The information system resides on the internal network of the enterprise and must be available to both employees of the enterprise and the trusted third party simultaneously. This contradicts the company policy which disallows third parties access to the internal network. The HAVECA-model introduced in this thesis provides a framework of methods, each solving a sub problem identified in the model. The identified methods are hardening, verification, control and assurance, together supplying a method for continuously securing the internal network against a trusted third party.

Through the entry of web 2.0 the technologies behind web development has changed dramatically. Asynchronous JavaScript and XML (AJAX) is the umbrella term for different techniques that make it possible to build rich and interactive user interfaces in today?s web browsers. Service Oriented Architecture (SOA) describes how common services can be bundled and published so they can be consumed by different systems.The company SYSteam Evolution AB, which has requested this project, wanted a web application that shows a graphical activity chart in order to easier view ongoing projects. The goal for this project is to develop a demo platform that shows how AJAX and SOA can be used to create flexible and reusable applications.

Computational techniques have transformed the journalistic approach. Journalists now have the opportunity to integrate user-statistics from the news website with their work. Singer (2011) argues that journalists seem particularly afraid of items, which they perceive as trivial or otherwise unsavory, will prove popular - potentially creating management pressures to produce more of those stories. She describes this practice as ??traffic whoring??.

The aim of the study was to explore how persons with aphasiaexperience literacy and reading and writing. Seven persons with mild-moderateaphasia were interviewed. The interviews were recorded, transcribed andanalysed using qualitative content analysis. The analysis resulted in three mainthemes; A changed reading, A changed writing and How to adjust andaccommodate to new conditions. The most apparent aspect was that theinformants experienced that literacy had changed, regarding what and how theyread/write.

Few generations have gotten as much media attention as Generation Y. Growing up in the digital age Generation Y has become very different from previous generations. An interesting topic is if this is reflected in the way Generation Y act as leaders. The purpose of this study is to describe what kind of leadership Generation Y prefers, to explore how individuals belonging to Generation Y act as leaders and finally to investigate if there is a discrepancy between these two perspectives and if so try to understand it. By reviewing existing research and conducting depth interviews with employees and managers at a Swedish bank we recognize preferences in a number of categories, which Generation Y require from leaders.

Workbooks are used and has been used for a long time in teaching context with younger children. Given that children start grade 1 after one year of preschool, I will in my study examine what type of activities that are presented in textbooks used for teaching younger children in pre-school and school grade 1. The purpose of the study is, through a selection of published skill-training materials investigate its pedagogical basic view related to reading and write form of education in pre-school and school grades 1. In line with the aim of the study and to answer the study questions, a qualitative text analysis and pictures analysis was carried out. The result shows that there are more similarities in content than the forms of the textbooks, there are assumptions about language as well as how images should be interpreted in a right way.

AbstractThe purpose of this bachelor thesis is to describe the use of artificial insemination (AI) in sheep and discuss the possibilities for AI in Sweden. Male and female fertility, heat detection, semen handling and insemination techniques in sheep are described. Advantages and disadvantages of AI are discussed. In order to achieve genetic progress it is important with well planned and implemented breeding programs. The Swedish Sheep Recording Scheme and computer software from Elitlamm are the basis for sheep breeding in Sweden.

Det finns ett behov av personer som klarar av att generera en mängd fräscha, slitstarka och kreativa idéer under press. Denna undersökning omfattar hur mångsidiga Art directors kan arbeta för att framställa och producera material som håller hög standard. Fyra Art directors har intervjuats och givit sin åsikt i ämnet. Utifrån resultaten av intervjuerna och en mängd kreativa tekniker har vi utfört en grundläggande idéprocess. Resultatet av denna process är en konstutställning där vi har skapat ett koncept med fokus på miljö och framtid. - There is a need for people who can generate a large amount of fresh, durable and creative idéas under pressure. This investigation concerns how versatile Art directors work to manufacture and produce material of high standards. Four Art directors have been interviewed and given us their opinion on the subject.