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1011 Uppsatser om Discrete event simulation - Sida 38 av 68

Ett första steg mot högre matematik : om gymnasieelevers upplevelse av en kurs i högskolematematik vid Kungliga Tekniska Högskolan i Stockholm

Forskning med hjälp av mikroskopi har med tiden ställt merspecialicerade krav på utrustning som används. Utrustningenhar blivit mer bättre men samtidigt också dyrare. Enhög kostnad innebär att avancerad mikroskopi inte kan användassom ett utbildningsverktyg inom grundutbildning.Dagens studenter tvingas på så sätt förberedas för framtidensforskning genom att använda gårdagens utrustning.I detta arbete visar vi hur virtuell mikroskopi kan användasför utbildning och forskning. Virtuell mikroskopi kananvändas som komplement, eller möjligtvis ersättning, förbefintlig undervisning. Vi har demonstrerat detta genomatt utveckla en pilotapplikation som simulerar de två metodernaFLIP och FRAP.

Boka en bibliotekarie - en studie i förmedlad informationssökning

This master thesis deals with events, dynamics and problems of mediated information seeking within the context of a new information service called "Book a librarian". The study, based on a survey and interviews both in academic and public libraries and participant observations in academic libraries, has its theoretical base in the cognitive theory of information retrieval interaction. The cognitive view is used to throw light upon the need of an ongoing dialogue during the session in order to detect the information needs of the user and to conduct a successful retrieval of information. The communicative interaction is seen as threepart interaction between the intermediary, the user and the information system, where the current cognitive states of all three participants are involved. The study shows that the cognitive obstacles for a successful mediation and information retrieval are mostly connected to participants current knowledge of the subject and of the retrieval techniques.

Vad kostar deltid? Kvinnors deltidsarbete ur ett pensionsperspektiv

Mothers of small children often work part-time in Sweden. Since old age pensions are based on lifetime income, part-time work leads to lower pensions, as long as there is no compensation from non-actuarial benefits such as minimum pensions. In this paper, I investigate whether different components of the Swedish pension system provide incentives for part-time work among women. The analysis is performed through a simulation of future pensions for 9 typical women in a certain cohort. For three levels of education, I compare pensions of women with different labor market participation rates in different growth scenarios.

Olympiska städer - Hur förvaltas det Olympiska arvet?

Syftet med denna kandidatuppsats är att studera hur den Olympiska parken i Peking respektive London planeras för att hantera de Olympiska spelen samt hur de planerats för att användas efteråt. Vidare är syftet att se vilka förutsättningar och vilken problematik som därefter uppstår. Undersökningen har skett genom en kvalitativ innehållsanalys av den Olympiska parken i Peking respektive London. Resultatet från studien har därefter analyserats och diskuterats utifrån ett par teoretiska huvudpunkter som är viktiga vid planeringen av mega-event. Planeringen av de Olympiska spelen är ett komplext projekt med många olika aspekter att ta hänsyn till. Detta då det bl.a.

"Den lata och odugliga greken" : En studie om medias framställning av greken samt hur grekerna upplever framställningen och vilka konsekvenser detta kan tänkas bringa

Media has an influence on millions of people around the world, this influence can be positive as well as negative as a consequence of how phenomena and a certain event are interpreted. Mass media tend to magnify and dramatize events in form of attractive headlines in order to get as many readers as possible. One of the countries that the media spotlight focused on in recent years is Greece. However these attractive headlines, have not contributed anything positive for the country and one can say that it has done more damage than good. In the media the Greeks have been stereotyped, radicalized and labeled as "lazy" due to the representation of media.

Klassningssällskapens regelverk, ett möjligt verktyg för att skapa stryktålighet på örlogsfartyg?

I denna uppsats behandlas hur klassningssällskapens regelverk kan bidra till ett örlogsfartygs överlevnad vid vapenverkan. Syftet är att undersöka om regelverken kan användas för att implementera stryktålighet genom sina notationer och krav på redundans, separation och skydd mot splitter.Arbetet inleds genom kunskapsuppbyggnad av teorier som behandlar örlogsfartygs överlevnad, vilka sedermera bildar arbetets teoriram. Sedan sker en analys av regelverken samt en fiktiv operativ miljö skapas för att ta fram taktiska uppgifter samt hot, vilka sedan omvandlas till verkansdelar och kritiska system. Därefter skapas modellerna som tillsammans med verkansdelarna används i simuleringen som genomförs i simuleringsverktyget Semiautomatsikt fartygs verktyg för AVAL. Simuleringarna mäter utslagssannolikheter av olika funktioner ombord vid påverkan från de framtagna verkansdelarna.

Turordningsreglernas vara eller icke vara

AbstractThe purpose of this essay is to investigate the priority rules in the event of termination due to redundancy, the rules functions according to the Swedish labour market and which other alternatives that exist besides the priority rules. The alternatives to the priority rules which are introduced in the essay are the Danish Flexicurity-model and a proposal from the Långtidsutredningen 2011. The rule of priority is a very controversial law at the Swedish labour market, which makes the essay also describing the criticism against the rules. The criticism that the essay presents claims that the rules of priority contribute to immobility effects for particularly older employees. Further on the essay presents the criticism towards the rules, that they disadvantage young employees on the labour market.  The essay investigates also what the researchers say about the criticism.The results that are presented in the essay points to the fact that the rules of priority contributes to the immobility effects of employees but the rules can not be claimed to be the only reason.

Passivhus, detaljutformning och dess köldbryggor

Along with rising energy prices and increasing awareness of environmental issues, the criteria for buildings energy performance have been sharpened through the years. Today, ?passive house? and ?low energy house? are commonly used phrases in the construction industry and is expected to become increasingly common in the future.For houses with well-insulated building envelope the importance of well constructed details increases when minimizing the heat losses. Examples of these details are floor-wall junction and window openings in the wall. In such connections thermal bridges occur, which means that heat more easily is transported out of the building, compared to the rest of the building envelope.This report deals with detail solutions around windows and a comparison between a traditional slab and a foundation from Koljern consisting of foam glass.

Bildåtervinning för alla: Att tillgängliggöra bildsamlingar för en bred och ickespecificerad användargrupp.

This essay is a survey of thirteen user studies performed in the field of image retrieval. The purpose is to try to distinguish principles that should be kept in mind when wanting to make image databases available for a wide and varied group of users. The essay tries to answer two questions, namely: Are there any results in accordance among the different studies? What in the user studies should be considered when it comes to how content description, interface and functions for searching can be designed when creating systems for image retrieval? Each study is first reviewed on its own, and then a comparative analysis of all the studies is carried out. Derived from the result of this analysis, the conclusion is presented in the form of a row of suggestions to which aspects are to be suitably included in the design of image databases.

Modellbaserad temperaturregleringav partikelfiltrets regenereringsprocess

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.

En titt på konsten Hur ser boråsarna på sin offentliga konst?

This thesis explores how public art is received by the general public in Borås, Sweden. As a point of departure it was assumed that a study of the local papers would offer an accurate insight in to the debate of public art. Hence, press clippings were chosen as primary source material together with the works of art. The questions addressed in the study are: what is written in the local daily press about public art? Who writes in or makes statements to the local dailies about public art? Textual analysis is the predominant method employed while hermeneutics is the underlying theory.

Förstudie för skapandet av ett miljöövervakningsprogram : en styrkeanalys angående vattendrag i västerhavets vattendistrikt för fastställandet av provantal i tid och rum för ett effektivt omdrevsprogram

The environmental monitoring in Sweden has been developed by several different parties and is now being coordinated and made more effective in order to meet the current demands on high quality information regarding the state of the environment. Sweden has been divided into five different water districts based on watershed areas because of requirements in the Water Directive of the EU. In Sweden there are two common types of environmental monitoring programs used to gather information on changes in time and in space. Currently both these two types are used for lakes in the water district of the western sea but only one is used for watersheds. The purpose of this report is to supply basic information regarding the possible need for a second environmental monitoring program for watersheds in order to better describe the spatial variation within the district as well as to determine the number of samples necessary in order to describe the district over time and space.

Ingenting är sant, allt är tillåtet : En kvalitativ studie om historiska datorspel som Assassin?s Creeds påverkan för det oavsiktliga lärandet och dess pedagogiska möjligheter

The main purpose of this study is to investigate the unintentional learning that happens during the use of computer games. With the use of interviews with students in the ages 13-15 who all have played the game series Assassin?s Creed, and then compared them with students who does not play the game, we have been able to identify that some learning is taking place, but that the student?s attitude towards the subject, and their maturity, also is vital for the learning. Even tough, the students who didn?t really enjoy history as a subject showed better knowledge after playing the game, than the students who hadn?t played at all, which indicates that computer games can be a good source for learning.

Social media & marknadsföring

The gas turbines in the Swedish secondary reserve are reaching the end of their technical lifetime, hence alternative solutions need to be considered. One of the solutions thought to have the greatest potential is the use of so called consumptionreduction. By entering contracts with large consumers, agreements are made to reduce consumption in the event of major disturbances in the power system and thus being used as a secondary reserve. This thesis investigates the feasibility of consumption reduction as part of the secondary reserve. This has been achieved by developing a requirement specification for the disturbance reserve and by studying the technical and economic potential for consumption reduction among a range of consumers.The technical potential for consumption reduction that fulfils the requirements for participating in the secondary reserve are on average 750 MW in SE 3 and 98 MW in SE 4.

Hållbara Evenemang : - Med inriktning på Musikfestivaler

I denna uppsats kommer vi undersöka hållbara musikfestivaler. Syftet är att få en djupare förståelse om arrangörernas och besökarnas roll inom hållbara musikfestivaler. Vi har inriktat oss på tre musikfestivaler i Sverige, Öland Roots, Urkult och Way Out West för att undersöka hur och varför de arbetar med sådan hållbar utveckling. Det som även kommer att undersökas är besökarnas roll inom hållbarhetsområdet. Genom telefonintervjuer har vi fått en uppfattning om arrangörernas roll inom hållbarhetsarbetet.

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