Sök:

Sökresultat:

1011 Uppsatser om Discrete event simulation - Sida 35 av 68

Utvärdering av nya ät-träningsmetoder

Mandometermetoden hjälper personer med ätstörningar genom att med träning lära dem ätapå ?rätt? sätt med en produkt som kallas Mandometer®. Detta sker genom att användarna viadisplayen på Mandometers® handdator får återkoppling på om de äter för fort eller förlångsamt under måltiden. Mando Group AB, företaget som utvecklat Mandometermetoden,har även tagit fram ett datorprogram som fungerar som en simulering av en måltid medMandometer®. Syftet med det här arbetet var att undersöka om träning med denna simuleringskulle kunna ge samma effekt som träning med Mandometer®.

Enterprise Voice Simulation (EVS) för mobila enheter i BYOD miljö.

Denna rapport introducerar Umeå universitets bakgrund till införandet av Lync Server 2013 som etablerades stabilt år 2014. Det trådlösa nätverket vid Umeå universitet trafikeras av studenter och anställda med mobila enheter som smartphones och laptops. Vid användandet av mobila enheter stiger flödesströmningen I det trådlösa nätverket med olika typer av trafiker. I denna rapport omfattas närmare ?Voice UDP? och ?Lync Enterprise Voice? med fokus på trängselkontroller vid överföringar av RTP-trafik mellan mobila klienter och 802.11 för att identifiera kvalitén i Lync-samtal, ?VoIP over WLAN?.

Drivaxeltrycksreglering hos tunga fordon : För en ökad framkomlighet vid vinterförhållanden

Heavy duty vehicles often have problems with traction during the winter periods. For vehicles that can lift tag axles it is possible to increase the normal force on the driven axle by lifting one or more tag axles, this will then increase the propulsive force of friction. This however increases wear on both road and vehicle. A possibility to reduce the wear while achieving nearly equivalent traction compared to lifted tag axles is to allow the vehicle to regulate the normal force by lowering the pressure in the air suspension associated with the tag axles or by the lifting of these axles. The vehicle would then by itself be able to set just the right amount of normal force on the drive wheels to avoid unnecessarily high normal forces while maintaining sufficient traction.The purpose of the report is to find out which parameters affect heavy duty vehicles when driving on slippery slopes and how traction can be improved.

Mäns upplevelser efter en hjärtinfarkt

Background: In Sweden approximately 37 000 individuals are affected by myocardial infarction every year. It is important after an infarction to investigate and make preventive changes of lifestyle to prevent another event. Patients have different conditions on how to manage a myocardial infarction and the new life situation they are put in. Through Kim?s domains men?s experiences after a myocardial infarction are separated.

Utsläpp av växthusgaser under islossning i små boreala sjöar

Freshwater ecosystems have long been neglected as an important part of the global carbon cycle. However, research shows that most of the world?s lakes are net-heterotrophic and consequently emitters of greenhouse gases to the atmosphere. In many boreal and north-temperate lakes, most of the yearly emissions usually occur in spring, shortly after ice-thaw. The aim of this study was to quantify the flux of carbon dioxide (CO2) and methane (CH4) in three boreal lakes, during this annual event.

Kommunikation och Prestation : Aspekter på förhållandet mellan teamkommunikations innehåll, frekvens och problem, och teamresultat, studerat i en militär flygsimulator för grupper

A study of communication content, frequency and problems was performed at the Swedish Air Force Air Combat Simulation Centre, FLSC. The purpose was to investigate the connection between team communication and performance variables, to study communication problems during air combat and to employ and develop the PILOT method of communication problem analysis. Ten fighter pilots and four fighter controllers engaged in simulated air combat beyond visual range in teams on two sides, Blue and Red, with four pilots and one fighter controller each. Eight such training runs lasting 15 to 25 minutes were analyzed with regard to the Blue team?s communication during launch situations, i.e.

Energieffektivisering av fastighet från 1930-talet : Utredning av energianvändningen och energieffektiviseringsåtgärder för Tången 2

Tången 2 is a building situated in Stockholm, Sweden. It´s built in the 1930s and contains both residences and businesses. The property owner, Diligentia AB, wants to lower the energy use in Tången 2. This report consists of an energy audit which clarifies the specific circumstances linked to Tången 2. Collected knowledge is then used, together with the results from the literature study, to decide energy measures to proceed with.

Frekvensreglering i det nordiska kraftsystemet

Svenska Kraftnät is (together with the other transmission system operators of the Nordic power system) responsible for keeping balance between the generated and demanded power in the Nordic power system. Spontaneous load variations and system disturbances, however, lead to power imbalance followed by frequency variations. The frequency deviations can be limited to an acceptable level by the spinning reserve, mainly by hydro power control. But there are also other system properties which have a great influence on the frequency and system stability. The frequency and voltage dependence of the loads have a direct influence on the power balance.

En vinst på planen, en vinst på börsen? - En undersökning om hur matchresultat påverkar aktiekurser i börsnoterade italienska fotbollslag

Syftet är att undersöka ifall det finns ett signifikant samband mellan matchresultat och rörelsen i ett fotbollslags aktiekurs. Uppsatsen ska även ge en ökad förståelse gällande skillnader i avvikande avkastning vid olika typer av motstånd och matcher. Uppsatsen är kvantitativ undersökning med deduktivt angreppssätt där avvikande avkastning studeras vid olika händelser med hjälp av diverse hypotesprövningar. Teorierna i uppsatsen behandlar aktievärdering, marknadseffektivitet samt aktieägarbeteende. Empirin presenteras i form av tabeller med avvikande avkastning och hypotesprovningar vid olika händelser.

?Om jag kan, kan vem som helst? : En kvalitativ studie om olika vägar ut ur missbruket

The purpose with this studie was to examine how individuals with experience of a long-term drugabuse describe their transformationprocess, and if this process has contributed to a change in their selfdescription. The studie was delimit to examine the transformationprocess, not in relation to what sort of abuse the informants had, or in relation to gender. The studie anwered questions concerning motivation to stop abusing, how the informants started the drugcareer, and how life as an abuser is described. In the studie qualitative method was used, five semi-structured interviewes were made with individuals who had a long-term addiction in the past. Symbolic Interactionism was the theoretical frame of referense that was used for analyse.

Plats? Pris? Mat? : Vad styr valet hos fo?retag?

Syftet med denna studie är att undersöka hur självskattad arbetstillfredsställelse kan prediceras av egenkontroll, arbetsledningsklimat, arbetsgemenskap, stimulans från arbetet samt arbetsbelastning. Syftet är även att se om resultatet påverkas av ålder, kön och anställningstid. Studien är genomförd på ett privat assistansbolag. Bakgrunden till valet av undersökningsområde har sin utgångspunkt i tidigare forskning som beskriver att de ovan nämnda variablerna har stor påverkan på den totala arbetstillfredsställelsen. Populationen i denna studie är personliga assistenter och urvalet består av 53 assistenter.

Hur ökad fukthalt påverkar pannor

This report is a description of a developed educational simulator over rail vehicles and its components. The simulator is a hardware-based prototype over a door system on rail vehi- cles. System specialists and technicians will use the prototype. The Simulator should give the user a technical demonstration on how components work in a door system. The proto- type consists of motor, switch, relay and sensor.

Gestaltningsförslag till ny förskola på Zakrisdal

Due to increasing regulations regarding new diesel vehicles particulate matteremissions the new Scania truck, Scania Euro 6, has been equipped with a particulatefilter. This component effectively stores the particles in the exhaust gas but must becleaned in order to prevent itself from clogging. The filter is cleaned through aprocess named regeneration which is a thermodynamic process in which thetemperature of the filter is raised through fuel supplied to the exhaust gas.The purpose of this thesis is to contribute to the development of improved controlstrategies of the temperature during the regeneration process through thedevelopment of model-based controllers. These controllers are designed in order tohave good performance in stationary as well as automatic regeneration.In order to develop these model-based controllers a model of the system isconstructed. The model is described as a linear thermodynamic grey-box model withflow varying parameters, showing good results in validation.The model provides a simulation environment during the controller design, which isfocused around the development of linear regulators with the exhaust gas mass flowas a scheduling variable whose size determines controllers? mode of operation.

Utveckling av en Multi-Zonsmodell för NOx Bildning i Diesel Motorer

This thesis work is the last part of the Master of Science education inmechanical engineering at KTH, Stockholm.The aim of this project was the development of a Multi-zone modelfor NOxformation in Diesel engines. Because of the stringent emissionlegislations, great effort is made to decrease the fuel consumption and theharmful emissions of internal combustion engines. Computer simulationsplay a decisive role in this context because they substitute the expensiveand time-consuming laboratory tests.The model is based on a multi-zone approach and uses the wellknownExtended Zeldovich Mechanism which gives a relation to calculatethe NO formation rate using the concentration of different gas speciesinvolved in the process.All the most important phenomena involved in the Diesel combustionhave been modelled. A special attention is then paid to the equilibriumconcentration calculation; this is a significant part of the model whichstrongly influences the following steps.A Simulink model has also been developed. This second version isbased on the previous model and it is made especially to allow theconnection with other external softwares, GT-power in this case.

Storbranden på nätet : En studie i hur kommentarsfält och forum på nätet använder sig av nyhetsartiklar för att skapa diskussion kring en mordbrand.

The main purpose of this study has been to explore and determine how the journalistic work was used by internet users to start and keep a discussion on the internet going.We started in the aftermath of a local arson in a town of Sweden, where a discussion on the internet forum Flashback and the local newspapers commentary fields was raised.We have used these discussions to study what part the journalistic work play in these events. To do that we used a critical discourse analysis and a rhetoric analysis to investigate how these discussions use news articles to make their point. We divided the comments into four different categories, which are comments about understandings of the event, comments that talked about the matters of fact, criticism pointed at the newspaper and comments that identify the offenders.The result of the analysis shows that both forums use journalistic work as facts in their discussions. Both also use earlier articles that were written before the arson, to make their point in the discussion..

<- Föregående sida 35 Nästa sida ->