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900 Uppsatser om Single-slice computed tomography - Sida 9 av 60
Optimering av slutfasstyrning
Modern missiles must meet higher and higher demands. They should be autonomous, have long range and still have a big effect on the target. To maximize effect on target some missiles not only minimize miss distance, but also try to hit with a certain angle; often perpendicular to the surface of the target. In this thesis a method to guide the missile in the terminal phase of its mission where both point of impact as angle of impact are specified. The method consist of two parts.
Microstrip Solutions for Innovative Microwave Feed Systems
This report is introduced with a presentation of fundamental electromagnetic theories, which have helped a lot in the achievement of methods for calculation and design of microstrip transmission lines and circulators. The used software for the work is also based on these theories. General considerations when designing microstrip solutions, such as different types of transmission lines and circulators, are then presented. Especially the design steps for microstrip lines, which have been used in this project, are described. Discontinuities, like bends of microstrip lines, are treated and simulated.
Kvalitetsbedömning av selekterad och oselekterad hingstsperma med hjälp av flödescytometri och fluorometri, före och efter seminsäsongen :
Most Swedish Warmbloods are bred by artificial insemination (AI). Quality control of the semen consists of the subjective evaluation of motility. There is a need for a more accurate and objective method of rating the semen. In this study we compared fluorometry with flowcytometry as a method for evaluating sperm viability. Semen was collected from three stallions, stationed at Markebäcks Gård, Askersund, three times during week 15 and week 34, 2008.
Modeller för studier av ursprungsmärkt el
The EU has decided that it should be possible for consumers to get information about the origin of the electricity they buy. Therefore, there is a need to examine different systems for electricity disclosure. In this thesis two ways of disclosure have been studied:? Certificate system. A certificate system involves two parallel markets, one for trading electrical energy and one for trading certificates of origin.? Separated Markets.
Det sociala arvet : Kvantitativa analyser av intragenerationell (föräldrar till barn) överföring av utbildningsstatus och föräldra bakgrund
The aim of this study was to find relations between parents background and education ina wider sense and their children's success in school. The study also includes genusdifferentiations, the family profile and residential areas influence on children's ability anddetermination to study.The study confirmed earlier research that children's success in school is to some extentdependant on their parents education. At the same time it was shown that in most casesthe children reached higher level of education than their parents ? also when they werepoorly educated or had emigrated from a country with big cultural differences. It was alsoevident that children with at least one Swedish parent (and presumably Swedish as theirmother tongue) reached higher educational levels than other children.Children from single parent families often stopped their school carrier after the 9-yearcompulsory class while children of dual parent families more often continued to university.In general, girls were more affluent in school than the boys.
Hur kan organisationer gå från att vara samlare av informtion till att bli nyckeltalsanalytiker? : En fallstudie på Trafikverket
In 1993 the internal market within the European Union was formed and ensured free movement of goods, services, capital and people. This led to the removal of trade barriers between members of the European Union. When opening up for competition, price differences between countries decreased and more jobs were created. A single currency was introduced by eleven countries in 1999 with the goal of reducing transaction costs, eliminating exchange rate risk and to further simplify trade. In 2001 Greece joined the collaboration and introduced the euro.
Evaluering av återvinningseffektiviteten i Svensk Medicin och Google Scholar med medicinska frågor ur Fråga doktorn.
The purpose of this thesis is to evaluate and compare the retrieval effectiveness of two search engines on the Internet: Svensk Medicin and Google Scholar. Svensk Medicin is a medicine-specific search engine and Google Scholar specialises in indexing scholarly material. A set of 20 questions in four categories were used to conduct the searches with the search engines. Genuine medical information needs were selected from a question collection provided by the television program Fråga doktorn. The relevance of the first 10 retrieved documents was judged by using a binary scale and the measure used was precision.
Skillnaden i central och perifer retinal tjocklek mellan olika ametropier - en OCT-studie
Syfte: Syftet med studien var att, med hja?lp av Optical Coherence Tomography (OCT), underso?ka om det finns na?gon skillnad i central och perifer retinal tjocklek mellan olika ametropier.Metod: Studien omfattade 36 fo?rso?kspersoner, som grupperades beroende pa? ametropi i en myop, emmetrop och hyperop grupp. Av de 36 fo?rso?kspersonerna var det 15 myoper, 15 emmetroper och 6 hyperoper. En inledande ma?tning gjordes da?r fo?rso?kspersonernas objektiva refraktion uppma?ttes med autorefraktor och da?refter gjordes en avsta?mning i provba?ge fo?r att sa?kersta?lla refraktionen.
Att undervisa förskolebarn - förskollärares strategier
This study gives voice to which strategies preschool teacher?s use they teach preschool children in different performance tasks. The overreaching aim of this study was to find out what teacher give expressions to, verbally and in action, and what educating strategy they use when the purpose is that the children are to learn something specific. The theoretical starting-point of the study is a phenomenography research which aims in finding and systematizing of forms of thought in terms of which people interpret significant aspects of reality. The study has a Sociocultural perspective which means that the structuring occurs through choice of which activities children have access to observe and engage in, as well as through in-person shared endeavours, including conversations, recounting of narratives, and engagement in routines and play.
Det Intelligenta Huset : - En studie i hemautomation
Today all buildings contain some form of home automation. It might be heating controlled by athermostat or motion detectors controlling outdoor lighting.This paper,The Intelligent House, deals with the planning of a house in Kiruna, in the north ofSweden and further immerses itself in home automation or intelligent control in single-familyhomes. The house has been entirely planned, from layout to structural design and plumbing.The purpose of the paper has been to investigate the possibilities in home automation in singlefamilyhomes and to choose a suitable home automation system for the house being planned.The system has been designed and the costs and energy savings have been calculated.The system chosen for the house is called KNX and is the largest system for home automation inSweden. It is used to control heating, ventilation, lighting and alarm systems in the house. Is hasbeen found that KNX is very expensive and that the amount of energy, possible to save in thehouse, using the system, is relatively small.
Ett gårdsbesök : ger besöket någon kunskap om mjölkproduktion?
Aquatic organisms are usually not exposed to single substances but rather to mixtures of toxicants in streams located in agricultural areas. The transport of pesticides used in the agricultural area in Sweden is monitored with continuous environmental supervision every year. During 2002-2008 an average of 10 pesticides were found in each sample and 40% of the samples contained substances with concentrations higher than the Water Quality Standards. Chemical risk management is normally based on single-test evaluations. A problem when assessing mixture toxicities is that the constituents and concentrations of pollutants in the environment vary greatly.
Webbportal för nätverks-övervakning : Utveckling av en Single Page Application i .NET och JavaScript
I detta projekt jobbar vi för att skapa ett program åt Infozone Sverige AB tillsammans med professionella utvecklare från företaget. Programmet är en webbportal som används till att övervaka och visa driftinformation om ett nätverk. Tanken är att denna portal skall integreras i ett ännu ej byggt system för nätverksövervakning som Infozone senare kan sälja till kund. Produkten tas fram med Scrum samt testdriven utveckling och under utvecklingen jobbar laget med bestämda metoder och SOLID-principerna för att säkerställa programmets kvalitet. Webbportalen utnyttjar moderna teknologier och ramverk för webbutveckling, bland annat är den en Single Page Application (SPA), använder följsam webbdesign och utnyttjar Microsofts .NET-plattform.
Effekter på balansförmågan av träning med Nintendo Wii Fit : En experimentell single-casestudie
Bakgrund: Fall hos äldre är vanligt förekommande. Regelbunden balansträning krävs för att bibehålla och förbättra balansförmågan. En persons self-efficacy och utfallsförväntningar spelar roll för om träningen blir av eller inte då många äldre inte tränar på grund av att de inte tror sig få ut något av det. Nintendo Wii Fit är ett modernt sätt att träna balansförmågan på.Syfte: Syftet var att undersöka om Nintendo Wii Fit har effekt på balansförmågan, self-efficacy till balansförmågan i hemmet, utfallsförväntningar på balansförmågan av balansträningen samt fallrelaterad self-efficacy hos tre hemmaboende personer över 70 år under och efter tre veckor interventionsperiod.Metod: Experimentell single-case design A-B-A2 användes. Interventionen bestod av balansträning med Nintendo Wii Fit tre gånger i veckan under tre veckor.
Personbilar i singelolyckor med dödlig utgång på Sveriges vägnät : Orsaker till olyckor och rekommendationer om hur dessa kan förebyggas
In Sweden the most common type of road traffic accidents involving passenger cars are single accidents (where only one vehicle is involved). The aim of this thesis is to analyse how these accidents occur, and present recommendations on how to reduce the number of deaths. Data has been collected from the Swedish Transport Administration?s in-depth studies of fatal accidents. Road traffic accidents with fatal outcome that happened on public roads during the years 2007 to 2009 have been studied.
Planering och gestaltning för träning och motion
Aquatic organisms are usually not exposed to single substances but rather to mixtures of toxicants in streams located in agricultural areas. The transport of pesticides used in the agricultural area in Sweden is monitored with continuous environmental supervision every year. During 2002-2008 an average of 10 pesticides were found in each sample and 40% of the samples contained substances with concentrations higher than the Water Quality Standards. Chemical risk management is normally based on single-test evaluations. A problem when assessing mixture toxicities is that the constituents and concentrations of pollutants in the environment vary greatly.