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 objective of this M. Eng. Diploma work was to validate the new version, CASMO-5M, and compare the results with CASMO-4E, by using the same input in both programs. The tasks that were included in this work was to compare TIP-measures, k-effective curves (warm), k-effective curves (cold), the effect of void on k-effective, the isothermal temperature coefficient (ITC), the moderator temperature coefficient (MTC), damping ratio calculations, internal effect in a fuel bundle of a BA-rod, the speed of BA-out burn, impact of xenon, falling control rod, margins and isotopes.The TIP-measures showed that the differences were small for all reactors, at most, 6% nodal improvement by C5M (Casmo-5M) for Oskarshamn 3. The warm measurements of k-effective showed that C5M had a higher value for all cycles of Oskarshamn 1, 2 and 3 in comparison to C4E (Casmo-4E).

Automatic trimmerhead is an examination project for making an automatic trimmerhead for grass trimmers with the user and functionality in focus. Our perception is that a happy user is a user who can pick up his or her trimmer, use it and put it back to its place when the job is done. It should not be necessary to interrupt work and perform maintenance on the machine just to make it work as promised.The project has been made in collaboration with the company Husqvarna, which is one of the biggest actors dealing with garden machinery on the market. Together we determined the project goal, ?To invent, construct and test a brand new concept for how an automatic trimmerhead can look and function?.At this day there are several different automatic trimmerheads on the market, both semi and fully automatic.

The modern veterinarian in horse practice is often consulted by horse owners concerning riding problems. These problems are more complex and show other characteristics than traditional lameness. For the diagnostic process and to give adequate advice the veterinarians need an understanding of riding terminology and problems related to riding. It is also of high importance that riders, trainers and veterinarians increase the knowledge of equine biomechanics and how these are influenced by the rider. Collection is an important concept in the riding terminology.

The poultry red mite, Dermanyssus gallinae, is a common problem in poultry facilities, causing great discomfort for the hens and effecting the production economically. Few efficient acaricides are available and there is a need for new control methods since resistance has become a problem in some cases. The aim of this study was to evaluate the efficiency of the new liquid silica control agent Ectopar, on the poultry red mite. An initial in vitro test of Ectopar and its two components individually was performed, where live mites were sealed in together with filter paper impregnated with one of the three solutions prepared. The survival of the mites was thereafter recorded repeatedly during a period of 120 hours and compared to a control. For the field study, two poultry farms with different housing systems were used, one with furnished cages (farm 1) and one with a single tier floor system (farm 2).

Background: Anorexia Nervosa (AN) is a complex condition with high mortality. AN has increased within the last fifty years and it?s associated with considerable suffering.Aim: To describe women?s experiences of AN.Method: This study was made as a systematic literature review. Articles were searched in Chinal, PubMed and PsycINFO. Eleven articles were used.

På senare tid har skolungdomar börjat uppleva sig allt mer stressade. Det kan handla om exempelvis stress inför skolan och den kommande framtiden. Denna studie undersökte elever på högskoleförberedande program upplevda stress, stressen inför framtiden samt eventuell betydelse av Locus of Control och kön. Respondenterna utgjordes av 42 poj-kar och 51 flickor, samtliga gick på samma gymnasieskola i årskurs tre. De fick besvara tre bakgrundsfrågor, en inom stressforskning väl använd stressenkät (PSS), en fråga gällande stress inför framtiden, samt Locus Of Control.

Anställdas produktivitet har överraskande visat sig öka under tidigare nedläggningar. Detta uppmärksammade fenomen benämns nedläggningseffekten och förklaras bland annat av anställdas ökade autonomi och utrymme för innovativa förmågor under nedläggningsperioden. Relationer mellan ledare och underanställda är enligt LMX-teorin av olika kvalitét vilket kan förklara anställdas engagemang, ett engagemang som även kan förklaras av anställdas individuella differenser. Syftet med studien är att undersöka ledarskapets och personlighetsvariabeln work locus of control betydelse för anställdas målengagemang under en nedläggningsperiod. En enkätundersökning för 275 medarbetare utfördes 2006 på ett tillverkningsföretag.

Indoor Energy is a company that works in the energy sector. It works through itsthree subsidiaries Indoor Energy Services, Indoor Energy Control and Indoor EnergyConsultants. Because of their comprehensive experience and offering of broad rangeof services they can contribute to integrated extensive solutions for their customers.Indoor Energy Control works with building management through control andregulation. This work is realigned by programmers and project managers. Working inthis area is complex and places a great demand on both technical innovation andprofessional project management.Due to the complexity of the work Indoor Energy Control has a hard time to get thenew employees to be independent in their work as a programmer.

The aim of this thesis is to try to make the mathematics content of textile handicraft visible. This is done through an attempt at integrated studies in the two subjects with 6th grade students.The main question is: In what way may integrated studies in mathematics and textile handicraft lead to making the mathematics content of textile handicraft visible to the students? This question has been divided into three sub-questions: 1. What knowledge do students have on the order of the millimeter, centimeter, decimeter and meter units of length?, 2.

The National Property Board (SFV) has been appointed by the Swedish government to administer all property of cultural value owned by the Swedes collectively. The commission includes maintaining the soul and character of each individual building, to adapt these buildings to present needs and requirements, and furthermore making them available to the public. The return on equity demanded by the government is based on the CAPM used within the real estate industry. The theoretical assumption that organizations are either function-driven or pay-driven will serve as a starting point, after which SFV will be defined as a function-driven organization with a pay-formed management control system. This paper aims to examine how applying a pay-formed management control system will affect a function-driven organization.

This thesis deal with tick burden on roe deer (Capreolus capreolus) fawns, in relation to age, weight, hind foot length, and as well as to vegetation and habitat on bed sites. Roe deer fawns (N = 25) were captured from May 27 to June 27. Samples of ticks were collected and tick burden were estimated. Of all sampled ticks the nymphs and adults were Ixodes ricinus, while the larvae were not identified. 4.4 % of the sampled ticks were larvae, 55.0 % nymphs, 26.8 % adult females, and 13.8 % adult males.

The purpose of this thesis is to assist the Swedish energy company NIBE Energy Systems in their studies of adaptive regulation applicable to electrical water heaters. Due to coming energy classifications of these appliances in the European Union, NIBE Energy Systems needs to use adaptive regulation, called Smart Control, to keep their products in the best possible energy class and remain competitive to the market. By using this Smart Control regulation a 2-3 % improve-ment of efficiency can be credited the system. This is a small number, but heavily needed, since the energy classes are based on the idea that the European Union is provided with electricity from coal condensate power resulting in a 40 % maximum efficiency. Furthermore, doing noth-ing will result in some water heaters not being approved to use on the market from 2015 due to low efficiency.

The main focus with this study was to investigate if there was a difference in level ofeducation and self-rated health and if it could be explained by the amount of control,demands and social support at work. Theories used in this essay are education, health,and the job strain-model (control, demands and social support at work). We used analready done study by Folkhälsoinstitutet (2004) to examine these questions. Theanalysed sample consists of respondents 12 166 aged 18-84 years. The decline was39, 2 %.

The costs of logging and of transportation with truck are dominating the total cost of wood delivered at industry. To support the profitability for the members' forestry the processing and handling with the timber has to be as efficient as possible. Increased length of pulpwood in thinning is one conduct that can result in higher productivity and/or lower costs. The study is scaled as a system analysis with the aim to exemplify the differences between working with 3- and 4-meter as standard length of pulpwood, related to biological aspects, timber receipts, cost of logging and cost of transportation with truck. Important aspects are if the change is technically and biologically feasible and economically profitable.