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2220 Uppsatser om NASA task load index - Sida 61 av 148

Utmattning av järnvägsbroar i armerad betong : Enligt eurokoder

Commissioned for this report is Ramboll, Bridge and Tunnel Unit in Stockholm. Theidea throughout the work has been to primarily help bridge designers compilingadvice and instructions on how fatigue verification for railway bridges in reinforcedconcrete shall be performed under the new rules, the Eurocodes.After the introduction of the Eurocodes in 2011 has major problems emerged amongdesigners around Sweden. In some areas, it differs in the calculation rules comparedwith rules from the Swedish Transport Administration and the National Board ofHousing, Building and Planning calculation. Fatigue verification is one area where thenew calculation rules are different from the past.A large part of the report has been to interpret and find the relevant information inthe Eurocodes concerning fatigue. When questions or doubts have surfaced, this hasbeen discussed with Elisabeth Helsing at the Swedish Transport Administration andbridge designers at Ramboll.The result is a report where the structure is organized in the way that the bridgedesigners can move from cover to cover and realize that fatigue verification in realityfollows the same order as the report's sections.

Att lyckas med ett europeiskt ordförandeskap En jämförande studie mellan fyra EU-länder

The presidency of the European Union (EU) is one of the most important institutional actors for the improvement of democracy and equality between the member states. To hold a presidency is a big task and for many countries a tough challenge. What makes a presidency successful? The purpose of the thesis is to examine this question using Ole Elgströms? ?four properties for defining a successful presidency? as the theoretical background. This thesis will employ a comparative framework of four countries, using size and age (age understood as ?time being an EU Member State?) as the defining factors.

Enkät som utvärderingsinstrument vid rehabilitering av korsbandsopererade hundar

Bakgrund: Korsbandsruptur är en vanlig skada både hos människor och hundar. I de flesta fall krävs operation och eferföljande rehabilitering. Inom veterinärmedicinen finns inga standardiserade funktionella tester att tillgå vid utvärdering efter korsbandsrehabilitering, vilket har efterfrågats. Syfte: Syftet med studien har varit att utforma, utveckla och utvärdera en enkät med ändamål att fungera som ett utvärderingsinstrument i samband med sjukgymnastisk rehabilitering av korsbandsopererade hundar. Metod: Enkäten har utformats utifrån WOMAC Osteoarthritis Index.

GIS-program för ruttplanering. En studie av nyttjandet av GIS-program för ruttplanering inom tekniska förvaltningar bland kommunder i västra Sverige

This report is a study in voltagelevel in connection with regeneration of brake energy from the tramtype M31 in Gothenburg.In the act of braking, the tram M31 uses electrical braking where the electrical motors generates energy and if possible send it back to the overheadline, where other trams in the nearby can use this regenerated energy for its own driving force. In cases where no other energyconsumers are located in the same section, there is a resistance witch task is to convert this energy into heat. The regulation of this resistance appears to cause an increase in the voltagelevel into far too high levels.Investigations of the trams regulationequipment and its construction have been done. Further have measurements on the overheadline been performed in order to map the voltagevariations during a longer period of time.The result have been showing that the voltagelevel during regeneration often is as high as 880V-920V, more extreme values have not been observed in a large scale. The values are especially high compared to the nominal voltagelevel.

Varför läser pojkar så lite skönlitteratur? : Vilka orsaker ger de själva?

I have in this thesis looked at the reasons for why boys, in upper school classes, read so little fiction. Several surveys show that boys in their teenage years stop reading fiction. If they read fiction it is only as a school assignment and not as leisure. There has been research done in boys attitude towards literature, but there hasn?t been any research done asking them about why they don?t read fictionI have interviewed a group of boys about their reasons, and attitude, for why they don?t choose to read fiction on their spare time after school.

Sensorfusion av GPS och IMU för en racingtillämpning

AIMS AB is a Swedish company that develops and sells inertial sensor systems. A new product is under research which basically is an aided inertial navigation system where unwanted drift is eliminated. This can be done by integrating a GPS reciever into the system and fuse measurement data from GPS and IMU. Such a product is useful in racing, where engineers always are searching for the optimal performance and the shortest lap times. Today the only feedback the engineers and mechanics get from their work is the driver?s comments and lap times.

Att leva med trycksår - en litteraturstudie om hur patienter med trycksår upplever det dagliga livet

Background: Pressure ulcer is a complication that arises often due to a lowered general condition. Pressure ulcer arise because of long term compressive load application. That?s why it?s of utmost importance as a nurse to work in preventive ways, as the pressure ulcer lead to physical, psychological and social consequences for the patient. Purpose: The purpose was to describe the patients experiences of living with pressure ulcer.

Beräkningsmall för vindlast enligt Eurokoder samt jämförelsestudie av  vindlastberäkningsmetoder

Detta examensarbete har genomförts i samarbete med byggteknikavdelning på Ramböll Sverige AB, i Norrköping/Linköping. På företaget finns ett behov av att förenkla arbetet med vindlastberäkningar för hallbyggnader enligt Eurokoden. Idag använder företaget en förenklad metod som överdimensionerar. För att kunna göra en mer exakt beräkning helt enligt Eurokoden och effektivisera arbetet har det i detta examensarbete skapats en beräkningsmall för detta ändamål. Beräkningsmallen har tagits fram i programmet Microsoft Excel.För att också kunna se konsekvenserna av att jobba med en förenklad metod, har det utförts en jämförelsestudie mellan två befintliga projekt på företaget.

Aktiv förvaltning ? Hur aktivt förvaltade är svenska aktiefonder? : En undersökning om fonder på den svenska marknaden genom tillämpning av tre aktivitetsmått.

Förekomsten av dolda indexfonder har flitigt diskuterats i media den senaste tiden. Syftet med denna studie är att undersöka hur aktivt förvaltade svenska aktivt förvaltade aktiefonder verkligen är. Detta ska genomföras genom att titta på tre olika aktivitetsmått vilka är active share, aktiv risk och omsättningshastighet. Tidsperioden för denna studie sträcker sig mellan åren 2012-2014. I undersökningen granskas sexton Sverigefonder.

Utvärdering av SABR : Genom en fallstudie av indexoptioner

Denna kandidatuppsats syftar till att utvärdera en i sammanhanget ny modell för värdering av optioner. Modellen går under namnet SABR och har enligt flera bedömare tagit en position som branschstandard inom vissa områden. Flera forskningsrapporter har presenterats i vilka modellen analyseras matematiskt och tillämpas på specifika marknader. I denna uppsats används data från Chicago Board of Exchange, mer specifikt optionen på S&P 500 index. Tillämpningen grundas på en kalibrering (regression) av vissa parametrar.

Föräldrautbildning för adoptivföräldrar: För adoptivbarnets bästa?

AbstractThe purpose of this essay was to study the parental education for adoptive parents. It´s provided by law since 1/1-2005 that parents have to participate in this education-program before they adopt. We wanted to look at what caused the change and made the education compulsory and to find out where the initiative came from, what purpose the education is supposed to fulfil, if it can facilitate for adopted children during their growth and whether the parental education can support the idea of what is best for a certain child always has to come first, according to the UN convention on the Rights of the child and the Haag-convention.The study was based on eight qualitative interviews, four with social workers, three with representatives of adoption-organisations and one with a representative of the public authority of international adoption (MIA). The conclusions of our study are that there is a risk that the education can not fulfil its purpose to prepare parents for their task, that it looses the idea of what´s best for the child and focuses on the parent instead. It seems to be more of a try out to not violate conventions signed and thereby fulfil a symbolic purpose..

Handlingsplan för rening av dagvatten från hårt trafikerade gator i Örebro

The main purpose with the project has been to approximate the magnitude of the pollution transport from the actual road surfaces and to get an approximation of the possibility to collect the pollutants to reduce the load to the water and improve the water quality.The quantity of pollution transport from the most trafficated roads areas in Örebro city has been calculated. Roads whith a traffic exceeding 10 000 vehicle/day. The study has been done with the calculation tool StormTac. Through analysis of traffic loads and road surface, which together with a different kinds of parameters gives an approximation of the pollutant transport.The calculation has included some metals and other substances in the stormwater and has also included the present of suspended solids. Included the overall study, some smaller areas has also been calculated for the possibility to remove pollutants.The work also includes calculation for three different areas for stormwater treatment.

Förslag till ombyggnation av klipp- och bockningsmaskin

This thesis work has been performed on request by SWT (Scandinavia WeldTech AB). SWT manufactures, develop and sell ready to assemble building systems for concrete rafter beam applications. The beams in this system consist of a u-beam that is welded to a flange. To be able to fill the beams with concrete there is holes in the beams top end. The holes are made in a ?punching machine?.  These holes are cut out and the remaining steel piece is bent down in the u-beam.

En trivsam inskolning : En intervjustudie om interaktion mellan pedagoger och föräldrar

The purpose of this study is to create an understanding of how parents and preschool teachers experience induction at preschool. The induction creates collaboration between preschool teachers and parents where the interaction and socio-cultural factors have been key theories for the work task.The method used has been of qualitative nature where interviews were made with parents and preschool teachers. In these interviews, they shared their insights of how they experienced the interaction and communication during induction. I asked the parents what they felt was good communication and interaction during the induction. The same question was given to preschool teachers to respond to and also if there was something that worked less good during induction.The results show that parents and preschool teachers feel that induction works well satisfactory and that it is important that the interaction work well between both parts.

Motiverad att känna arbetsglädje nu? : Mindfulness betydelse för arbetsmotivation ocharbetstillfredsställelse

Tidigare forskning har visat att mindfulness kan höja livskvaliteten inom en rad områden som till exempel välbefinnande, inre motivation och prestation. Dock saknas studier om dess inverkan på arbetslivet. Syftet med den här uppsatsen var att undersöka vilken roll mindfulness eventuellt kan spela för människan i arbetslivet, särskilt för arbetstillfredsställelse och arbetsmotivation.  Respondenter var 103 yrkesverksamma individer i olika åldrar och från olika yrkesgrupper, varav 78 kvinnor. En kvantitativ enkätstudie gjordes där respondenterna självskattade 81 påståenden bestående av de tre etablerade mätinstrumenten Five Facet Mindfulness Questionairre (FFMQ), Work Extrinsic and Intrinsic Motivation Scale (WEIMS) och An Index of Job Satisfaction.

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