In previous contact with secondary schools, we have noticed a dull setting for friluftsliv among teachers in Physical Education and Health. We suspected that both teaching and assessment are sometimes conducted in error. Under the provisions of Skolverket the teacher must involve all elements mentioned in the core content of the curriculum and the assessment of students' knowledge may be based only on what is expressed in the syllabus for each course. Research shows that the implementation of the curriculum have failed in the subjects investigated (Skolinspektionen, 2013:22). We have identified a gap of knowledge regarding the situation of friluftsliv in the course physical education 1.

This Masters thesis work describes a comparison between two different methods for estimation of the down channel (base station to mobile subscriber) in Wide-band Code Division Multiple Access (WCDMA). The first estimation method, Optimal Feed-forward Channel Estimation (OFCE), is a conventional method that bases the estimates on data that is known to both sender and receiver, so called pilots. The second method, Decision Directed Channel Estimation (DDCE), is an elaboration of OFCE. It also uses user data for estimation. Simulations show that DDCE, in comparison to OFCE, does not attain an improvement in signal-to-noise-ratio (SNR) for high bit error rates (BER).

Games offer a safe and motivational environment that allows and encourages trial and error. A gamer can act in the game without any real consequences in real life. Thereby a gamer is offered the opportunity to develop a broad set of skills. Games have earlier been proven to develop gamer?s problem-solving skills.

This paper is partially a literature study of human error and interruptions and partially an investigation of pilots and Air Traffic Control. The aim of the investigation was to find out where interruptions occur and how to reduce or eliminate them. The objective of this paper was to investigate what type of interruptions pilots and ATC deals with and during which phases they occur. The paper has revealed that private pilots causes more interruptions for ATC personnel than commercial pilots. The cause for this is probably the less experienced private pilot and the fact that Swedish is used before English by private pilots in communication with ATC.

Bara BostäderPlacerat mellan Bollmora flerbostadshus och den gamla landsvägen breder Tyresögymnasium ut sig. Vår ingång blir atr riva skolan, materialet ´kremeras´till tegelkross och sprids i en röd löparbana längs med den befintliga landsvägen, att tillåtas glömma för att senare minnas. Gymnasiet förstås som en del av det befintliga landskapet, det ändrar bara from och byter plats. Vad händer om man släcker ett lager i AutoCad?Det närvarar i sin frånvaro. Djup genom lager.

This master thesis is a study on how a rategyro triad, an accelerometer triad, and a magnetometer triad can be integrated into a navigation system, estimating a vehicle?s attitude, i.e. its roll, tipp, and heading angles. When only a rategyro triad is used to estimate a vehicle?s attitude, a drift in the attitude occurs due to sensor errors.

Material handling is a term that includes all kinds of handling of material from a raw product to a finished one. ABB is active in the following segments; foundry, packaging and palletizing, metal industry and plastics industry.The demands for efficiency and reliability have been set very high in the industrial sector. Optimizing of the material handling will give the company higher cost-effectiveness. Around the robot there are different kinds of material flows, to optimize the cycle time, consisting of carriages combined in different ways.Motion Control is a complex system with main functions such as; positioning, synchronizing, indexing and more. The products in the system need to cooperate to make these functions possible therefore integration of motor- and servo products are important.

In inhalation anesthesia life-support systems are used to provide gases to the patient and to monitor important parameters. These systems are used in dynamic and stressful situations where the information-load on the operators often is significant. This thesis presents a design concept of an anesthetic system. The design goal has been to keep the information-load on the operator low with the objective to minimize confusion and error.A number of contextual inquiries were made in the operating room during surgery at four hospitals in Sweden. The goal was to understand the actual use-situations when anesthetic systems are employed.

This thesis has been carried out on behalf of IV Produkt AB and intends to set an average ratio of thermal energy losses in apartment buildings that were built during the 1960-1990. This shall be derived by analyzing the total district energy consumption that has been divided into three parts: heat energy losses (the actual heating requirements), the heating of domestic hot water and heating energy consumption for the controlled ventilation.Three different residential areas that were built during the years 1962-1966 and one that was built in 1993 has been analyzed. All residential areas are located in Växjö urban and contains between four and six apartment buildings.The analyzed objects have a mechanical exhaust ventilation systems and district heating as the heating method. No own laboratory work or experiments have been done in this thesis, the calculations have been done on the basis of parameters from VEAB, interviews with property managers, and literature studies. By calculations, we have got a result that is reported in Chapter 6.

Denna uppsats är en del av trafiksäkerhetsprojektet FICA (Factors Influencing the Causation of Accidents and Incidents), vars målsättning är att genom en förståelse för förarbeteende kunna utveckla aktiv säkerhetsteknologi för fordon. Inom detta projekt kommer en metod för olycksanalys, DREAM (Driving Reliability and Error Analysis Method), att användas. Den här uppsatsen handlar om att utvärdera och utveckla denna analysmetod. Arbetet med metoden har främst gällt användbarhetsaspekter av DREAM. Även olika kvalitetsaspekter som till exempel replikerbarhet, har undersökts.

Studiens syfte är att studera de bakomliggande sociala faktorerna som kan bidra till utvecklingen av datorspelsberoende. Studien genomfördes kvalitativt genom att intervjua fem personer som själva ansett sig vara datorspelsberoende. Tidigare forskning som berört detta ämne har handlat om hur användare påverkas av spelet, och inte vad som lett fram tillatt det intensiva spelandet påbörjades. Som teoretisk utgångspunkt för studien valdes den utvecklingsekologiska modellen som användes för att studera individen utifrån ett mikro-,meso-, exo-, makroperspektiv. Våra data visar resultat främst på en mikronivå där vi fann att en problematik på denna nivå fanns genomgående för samtliga informanter.

This thesis lays the foundation of the future routines of effective error repotring fortraffic devices in the raiway sector.If a device, for example a timetable display, stops working it is vital that the device isfixed as fast as possible so that the travelers dont miss any important information.The methods that are used today are old and not very effective. It can take time forthe repairmen to find the right device or locating the broken component. At the sametime he is supposed to maintain telephone contact with central control throughoutthe whole session.The need for a new, more effective, system is vital to make the whole repair pfocessmore effective and let the repairmen work without having to contact the centralcontrol by phone.I started this work by examining the possibilities of assigning every object with aunique identifier (ID tag) that could be accessed by a manual scan device. The ideawas that the ID tag could holw information about the object and be obtained byscanning the ID and get the information presented on a mobile device.The work also included building a internet application that enabled the reader to seeand change the information on the ID tag.The result was a database that stored information of different objects which could beobtained by scanning the ID tag and presented by a internet application..

When traffic in large cities increases, it becomes more vulnerable to disturbances such as accidents, stalled vehicles or construction; therefore, traffic jams are more likely to occur. For better control of the traffic at a disturbance the Swedish National Road Administration (SNRA) has traffic equipment which can be controlled from a command centre. This traffic equipment consists of gates and signs with variable messages. This report will discuss the system used for traffic control in Stockholm. It will present proposals designed to improve it.

Denna rapport beskriver framtagande av ett koncept för ett geografiskt informationssystem som är anpassat för att köra på moderna mobila enheter ute i fält. Detta sätter krav på systemet vad gäller beräkningskraft, lagringsutrymme samt möjligheten att klara av intermittent datakommunikation. För att ta fram systemet utfördes först en förstudie med databaser och sökmotorer användes för att hitta relevant information och relevanta artiklar som kunde hjälpa till vid framtagningen av systemet. Denna fakta tillsammans med utförda tester och ?trial-and-error?-programmering ledde i slutändan till ett koncept som klarade av de krav som ställdes på systemet.

AbstractThe purpose of this study was to identify problems that may occur in the execution of a civil engineering project and suggest measures to reduce the risk of errors. The study was conducted in cooperation with a civil engineering company in the Gothenburg area. During two weeks in February 2012, a field study took place on two construction sites where disruption and problems that took more than 15 minutes to correct were noted. During the field study we identified 39 such occurrences in the projects and then these were classified into different categories according to their cause.The two largest categories were "Design" and "Planning", which accounted for half of the errors that were discovered.In the study results were evaluated to decide whether it was possible to detect discrepancies at an earlier stage. The cost to fix an error in the design stage may be significantly less than to correct the problem in production.According to the evaluation, 55% of the errors could have been detected earlier if there was a greater degree of observation for such issues by everyone involved in the project.