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1508 Uppsatser om Computer simulation - Sida 59 av 101
Genomgång av Turbomin 100 : Förstudie och föreslagna förbättringar av undervisningsjetmotor Turbomin 100
ABSTRACTThis project thesis has been written at the request of Mälardalens University, Västerås.The aeronautical engineering students at Mälardalens University and the pupils of Hässlö upper secondary school, all gets the opportunity to perform a computation lab with a real turbojet engine during their study. The goal of the lab from the University is that it should give the students applied experience from the theory part of which has been tought in the course ?Aircraft Engine Technology?. The pupils of the Hässlö upper secondary school are performing simpler calculations from the measured values of the equipment. This turbojet engine is located at Hässlö airport in the premises of Hässlö upper seconday school.Since the installation 1989, the engine has lost both thrust and reliability. This makes the theoretical computations made by the students inaccurate.
SILO 72 : Ombyggnad av Lantmännens silo i Östra Hamnen, Västerås
This project includes a small study of Västerås city's housing needs, and a proposal on theuse of the property 1:207, Lantmännens silo in the Eastern Harbour, Västerås.The project intends to produce a basic study of the useful systems for this rebuilding projectwith regards to sustainable development and energy saving light buildings.The end result, which consists of a detailed visualization of the proposal, intends to becomean iconic natural focus for the Eastern port of Västerås and an example of the use andadaptation of existing structures.The property must also link the eastern parts of Västerås with the center through anextension of Mälarleden.The work has been performed through literature studies, site visits, contacts with the City ofVästerås and by calculations.The proposal consists of architectural proposals drawings and visualizations.Furthermore, a suggestion is given of how the property can be used and fitted into theoverall plan for urban density development currently underway in the city of Västerås.Computer programs used have been Microsoft Office Excel, AutoCAD and ArchiCAD..
Organisation och Åtkomst av Filer : En Explorativ Studie av Datoranvändare ur ett Psykologiskt Perspektiv
Syftet med denna studie var att få bättre förståelse för hur datoranvändare organiserar filer och att få ökad förståelse för vilka vägar datoranvändare väljer för att komma åt filer i ett datorsystem designat efter skrivbordsmetaforen. Resultatet tolkas utifrån aktivitetsteori och distribuerad kognition samt tidigare forskning. Halvstrukturerade intervjuer gjordes med 18 datoranvändare i den ordinarie arbetsmiljön. Utöver att svara på frågor fick de också visa och förklara hur de organiserat sina filer samt hur de gick tillväga när de använde dem.Resultatet pekar på en betydande ökning i användning av datorns skrivbord jämfört med tidigare studier. Två typer av lagrad information kunde identifieras, temporär och långvarig.
Faktorförsökbaserad diskret händelsestyrd simulering av trafikflöden under långsiktiga prognoser: En fallstudie vid Göteborgs Hamn
Världshandeln växer kraftigt och det vanligaste sättet atttransportera gods mellan landsgränser är genom sjöfart. I takt med attvärldshandeln växer, ökar också storleken på fartygen. Detta innebär att enstörre mängd gods anländer samtidigt när ett fartyg förtöjer vid en hamn. Föratt hantera denna ökade mängd gods måste godsnav och hamnar ständigt utvecklaoch effektivisera verksamheten. Detta innebär att långsiktiga prognoser ochplaner måste utvecklas för hur större fartyg skall kunna hanteras.
BarnABC
This project is a learning CD-ROM production aimed at first-time parents. It is
using both sound and images, moving as well as non-moving. The purpose of the
production is to be an interesting alternative to traditional books. We have
been looking at similar productions like drivers license educational CD-ROMs
and encyclopedias for inspiration and ideas on how to proceed. In order to give
the content some dynamics, we've also added the element of 3D-animated
sequences.
The application is supposed to be run as a simple executable file with flash
embedded.
Reglering av matarsystem vid höghastighetskapning
Today small metal parts are mass-produced as for example rollers in cylinder bearings. At high velocity cutting the metal is cut with a great force in a scissor-like device. Both precision and repeatability is important to be able to guarantee good quality, but from an economical point of view it is also important to keep a great manufacturing capacity. The part of the process that is most time consuming is when the metal bar, that is about to be cut, is fed to the right position. Therefore it is interesting to examine if the time used for positioning can be reduced.
Reklam i din bästa vän? : en jämförelse av uppfattningar av reklam genom E-mail respektive SMS
The work with this paper began with a belief that the permission aspect plays acrucial part when it comes to consumers perceptions of marketing through E-mailand SMS - especially when it comes to advertising that is received through a devicethat the consumer has a strong personal relationship with. The questions to beinvestigated was: "How do users of computers and mobile phones feel aboutadvertisement received through E-mail and SMS?" and "In what way does the usersrelationship to the computer or mobile phone affect how they feel about theadvertisement?". The study was based on a questionnaire as well as an analysis of theresponses in combination with previous research on the subject.The results showed that the majority of the respondents from this papers surveywere found to have a negative attitude toward advertisement through both E-mail andSMS. However, the respondents turned out to have a slightly higher tolerance foradvertisement through E-mail than towards advertisement through SMS.
Uppföljningsverktyg för analys av användarloggar
In order to understand user behaviour and navigation patterns, user logging is today widely used in analysis and development of user interfaces. These user logs tend to be quite many and can contain a lot of different data. A big issue is how to process and display this data in a perspicuous way to the stakeholder. This study is about how to develop a prototype to handle this issue. It was solved by various methods from human-computer interaction.
Jämförelse mellan neurala nätverk baserad AI och state-of-the-art AI i racing spel
Denna rapport jämför prestandan mellan state-of-the-art AI-botar i racing
spelet TORCS och en AI-bot
som kör med hjälp av ett artificiellt neuralt nätverk (ANN-bot). ANN-boten, som
implementerades som
en del av arbetet, använder en feedforward arkitektur och backpropagation för
inlärning. Ett separat
program som användes för att träna det neurala nätverket med träningdata som
spelats in från TORCS
implementerades också. Som state-of-the-art AI-botar användes AI-botar som har
använts i en tävling.
De fyra AI-botarna testades på åtta olika banor och data om hur lång tid varje
varv tog och hur snabbt
AI-botarna körde sparades och sammanställdes. Resultaten visar att på banorna
som ANN-boten klarar
av att köra runt så är ANN-boten snabbare än en den långsamaste
state-of-the-art boten, men ANNboten
klara inte av majoriteten av banorna som den testades på.
Attityd och användning till cannabis bland studenter på Linnéuniversitetet : En kvantitativ undersökning
The aim of this study was to explore the students? use of and attitudes towards cannabis at Linnaeus University. Social psychology and gender perspective was used as theories to explain the use and attitudes among the students? and how the use and attitudes could change through social influence. The study operates from a quantitative approach and is based on an online survey which includes answers from 126 respondents.
Modellering och simulering av det evaporativa bränslesystemet i en personbil
This thesis work has been performed at the department of diagnosis and dependability at Volvo Car Company, Torslanda. The background of this project is based on interest in ascertaining how different factors possibly can affect a diagnosis method, which has been developed to find leaks in the fuel tank and evaporation system. According to the OBD II requirements leaks with an orifice diameter larger or equal to 0,5 mm, must be detected. The idea of the diagnosis method is to create an over pressure in the system with an air-pump. The current through the pump is measured and correlates to the power consumed by the pump.
Är handdatorer säkra nog för hälso- och sjukvården?
The aim of this report is to discuss computer security in handheld computers and to find out the appropriate security level that must be implemented to be able to use handheld computers within the Swedish healthcare system. Most healthcare centers are using some kind of electronic journals for their patient´s data today, but there are still a number of clinics that are usingthe old paper-system. On a few places in Sweden the use of handheld computers at the clinics has already started, but in the United States the use of handheld computers in the medical area is already widespread and from this we can see a lot of different situations where it is useful and effective to work with handheld computers. The security demands on patient´s journals are high and regulated in both Swedish law and regulations from the National Swedish Board of Health and Welfare. The law does not have any substantial demands, but states that there should be an adequate security level based on the nature of the information and the costs.
Digital delaktighet : folkbibliotekens undervisande roll i kampanjen Digidel
In this thesis the pragmatic pedagogy as formulatad by John Dewey is applied to theswedish national campaign Digidel and its work to spread the digital participation among thegeneral public. The purpose of the thesis is to visualize and problematize that differentunderstandings of a problem, lead to different solutions, as lifted in John Dewey´s pedagogy, thatconstitutes the thesis' theoretical framework. The term digital participation is used by the Digidelcampaign, where public libraries take active part to spread digital participation througheducational efforts. By qualitative interviews with four librarians this thesis examines howunderstandings of the term may vary and in turn lead to differenent educational goals, designsand executions. The result shows that basic computer- and Internetskills are seen as either equelto or prerequisites for digital participation and that the digital participant is seen as either apassive recipient or an active participant.
Modularitet och objektorientering : Byggandet av ett program som kan visa en molekyl
The development of IT systems is usually accomplished by some form of system development methodology. It can be performed as the waterfall method, where each phase is completed before the next begins. One of the reasons to follow a development methodology is that the process is more structured, faster and that the product will have higher quality. One risk of not using a system development approach is that the code can be unstructured and difficult to maintain.This paper describes an alternative method in which the development occurred without the use of any system development methodology. This has been possible because there was a clear goal of the program that should be developed.
Analytisk dimensionering av räddningstjänsten i Skåne Nordväst
This report is a part of the process of enhanced cooperation between fire rescue services in the region of North West Scania. The aim of the report is to study and analyze how the fire rescue service should be structured, in terms of rescue units and personnel, if no account is to be taking to the current organization. Two types of accident are considered in the report, traffic accidents and building fires. These are more affected by decreased response time than other accidents. Several suggested organizations are presented and they are evaluated with the computer program REP.