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1011 Uppsatser om Discrete event simulation - Sida 30 av 68

Energianvändning i badhus : Simulering och jämförelse av gamla och nya system

Every year new premises are built in Sweden, and even if they are made as energy efficient as possible, this will not reduce the energy demands, but the rate of the increase of the energy use will be reduced. One type of facility in Sweden that is a major energy user is public baths, and this makes public baths an interesting facility to study more closely. There are around 500 public baths in Sweden and about 75 % of those can be seen as older baths with large need of renovation, and they all require a high level of energy efficiency measures. To show how the energy demand increase or decrease depending on the changes chosen to be made, the simulation application IDA Indoor Climate and Energy was used. Simulations were made and compared for several cases, with two extreme cases as starting points.

Elevers intresse och upplevelser av redskapsgymnastik : En kvalitativ fokusgruppstudie

Gymnastics is a reoccurring event in the physical education of many students. Despite this, there is still today limited research which describes the students? perspective and interest for this activity and if there are any differences between genders. The purpose of this study has therefore been to investigate students? interest for gymnastics and if there are any experiences, which can affect this interest.

Energieffektivisering av arbetsbodar på byggarbetsplatser

Everyone has to take a greater responsibility in energy issues, both individuals and companies. There have been some major developments in the construction industry but there is still a lot to be done. This diploma work thesis presents different methods of making existing construction shed establishments to use less energy. What is possible to do and how much energy is there to be saved? A shed establishment consisting of 8 shed units were studied in this project and the building simulation tool VIP-Energy was used to simulate different types of material in the sheds. An infrared camera was used to locate thermal bridges. There are several factors that can be improved to make a construction shed establishment to use less energy.

Fritidspedagogens känslor och handlande : En essä om konflikthantering i skola och på fritidshem

In my essay, we get to meet Olle who goes in first class. The essay takes off after school and when recreational activities have started. Olle comes running towards me to ask for help, he has gotten into trouble with three classmates and he feels unfairly treated. A true classic or normal event, which I think takes place in most schools. What I am interested in examining is how my feelings affect the whole course of events in the conflict arising.

När etnicitet står i fokus - En fallstudie av Kenyas presidentval 2007

This thesis discusses the 2007 elections in Kenya, and its aftermath. The aim is to examine whether or not ethnicity played a major role in the outbreak of violence that followed the referendum. As well as different theories and discussions on ethnicity, I will also try to explain the course of events by using theories of increased civil violence during a democratic transition, and the fact that weak political institutions can cause violence. My conclusion is that ethnicity has played a part in the violence, but is too simple to blame the events following the election on just that. A number of different factors all contributed to the outbreak, but all to a different extent.

Rörelse och verbalisering- en studie av språkets påverkan på kategoriseringen av rörelsesituationer

This essay attempts to show a relativistic effect on the representation of motion situations. A summarize and defence for lingusitic relativity as scientifically valid and some taxonomic clarifications is initially presented. The relativistic effect is measured by using the elicitation tool Event Triads, developed at the Max Planck Institute for Psycholinguistics. The tool consists of a set of films displaying various motions. Test-subjects are asked to verbalize a situation in a way they see fit.

Simulation av Xbox Live Indie Games gränssnittet

This thesis was developed as an assignment from Ludosity Interactive where the goal was to develop a copy of the Xbox Live Indie Games-marketplace from the Xbox 360. Ludosity Interactive had a necessity to easily test a game's attractiveness to potential customers using testing people from outside the company in a simulated Xbox Live Indie Games test environment; excluding this developed system there is no other way to do such an analysis without actually releasing the game on the Xbox Live Indie Games marketplace and then analyze the resulting sales from the product.The finished system had to be similar to the original system to the degree that a user could see past the interface itself and use the system just as he/she would have used the real marketplace. It also had to be easy to change and add games to the system so that Ludosity Interactive easily could show the games and the data that they deemed interesting for their tests. The final product was developed using C#, XNA and XML together with an Agileinspired development method in combination with Pivotal Tracker. This report describes how this product was developed..

En fallstudie på användbarheten av en sjukhusavdelnings e-postsystem

Redan 1899 skrev Woodworth om iakttagelser av effekten av visuell feedback på rörelser. Sedan dess har ett stort antal studier berört ämnet och studerat effekterna de medför. Denna studie anser att det finns brister i kunskapen om visuell feedbacks effekter inom vardaglig användning. Genom att låta deltagare använda och utvärdera instanser av en bokningsplattform för biljetter till ett event har studien observerat användarens upplevelse och effektivitet under processen.Den insamlade datan analyserades via variansanalys men lyckas inte avfärda nollhypotesen. Studiens resultat visade ingen korrelation mellan närvaron av visuell feedback på hover-funktionen och användarens effektivitet och upplevelse.

Investeringskalkyl baserad på ett flerbostadshus energiprestanda

The aim of this study is to find a method to incorporate the energydemand of a building in the investment cost estimate.The study is based on an actual apartment block. The significant energyaspects are identified, and changed to more energy efficient options.These are then simulated using the energy calculation program VIP+.The calculated energy need is used in the investment cost estimate, andthe simulated alternatives are compared in regards to their economicalprofitability.Depending on the focus, different alternatives are the most advantageous.Since this study aims to show which alternative is the mosteconomically profitable, the annual profit is the parameter of mostimportance. This means that individual measuring of heating and hotwater use is the recommended change of the original house. A changeof the windows to new ones with a U-value of 1,0 as well as 0,8W/m2K also results in a positive change of the annual profit comparedto the original house..

IKT som stöd för krishantering i skolmiljö

IKT (Informations- och Kommunikationsteknologi) är något som idag präglar vårt samhälle vilket leder till att dess användningsområden numera enbart begränsas av vår egen fantasi. Att använda IKT vid kriser ser vi idag som en självklarhet, men hur ser egentligen användningen av IKT ut före, under och efter en kris ut bland kommunala skolor?Studies resultat, som baserats på svar från två kommuner belägna i olika delar av Sverige, visar att kommunala regleringar och policys till stor del styr hur IKT används vid krissituationer. Kommunen säger att all officiell information skall publiceras via deras hemsida, vilket begränsar i vilken utsträckning skolan kan använda IKT i krissituationer. Resultat av studien visar också att det är främst verktygen som personalen använder i det vardagliga arbetet som också används till hjälp i krisarbetet och att sociala medier används i viss mån..

Förbättringsarbete på monteringsbana

In this project we have used the theory of analytical mechanics to derive equations of motion for complex mechanical systems in order to study their behaviour over time. Even if the theory provides powerful tools to tackle tough problems which would be very hard to solve by methods of Newtonian mechanics, you are still relatively limited without running any computer simulations. One realises that in a faster rate it will be an incredibly difficult task to find an analytical solution when the degrees of freedom increases. Even if one would succeed to derive the equations, one still has to solve them to get the information of the systems behavior. Of experience one knows that the equations in general are nonlinear and hence must be integrated numericaly.

Soldriven kylning i Sverige

This thesis has been performed at the system development company Verendus System AB, together with the home care company Basic Care Unit (BCU).The thesis has consisted of developing a web based informationsystem for BCU in which they can administrate their business. At the time of writing this thesis, BCU was using a windows-application to administrate their activities, which was both costly aswell as resulting in an unnecessary burden. The aim the thesis has thus been to create a platform-independent information system that simplifies and streamlines BCUs work by being user-friendly aswell as imposing some simplifying features.The students has been developing the system by the help of a work method they themselves developed. The method consisted of working in several iterations that each had several milestones. The method resulted in the students knowing easily when each iteration was finished or not.The thesis resulted in a working platform independent prototype.

"Guud, vad tråkigt." : Matematik och elevmotivation

Drinking water is produced from raw water and is either from groundwater or surface water. This thesis aims to find out if the cleaning process of raw water is sufficiently effective. This is important because consumers are otherwise at risk of waterborne infection caused by pathogens. There are three groups of pathogens; bacteria, virus and parasite. These have different characteristics which mean that they require different water treatment to be separated.

Rätt fönster i olika väderstreck : En undersökning av energieffektiva fönsters påverkan på byggnaders energiprestanda

The Swedish building stock accounts for nearly 40 percent of the total energyconsumption in the country. Properties built today are likely to last for 100 years orlonger. This places high demands on long-term and smart energy solutions that willkeep the future Swedish building stock energy consumption at low levels. This thesishas focused on examining how the energy performance of buildings is affected bydifferent choices of window types in different cardinal directions. The objective wasto obtain a basis for recommendations on how window properties can be optimizedfor different types of buildings and orientations.

Analytisk mekanik med datoralgebra

In this project we have used the theory of analytical mechanics to derive equations of motion for complex mechanical systems in order to study their behaviour over time. Even if the theory provides powerful tools to tackle tough problems which would be very hard to solve by methods of Newtonian mechanics, you are still relatively limited without running any computer simulations. One realises that in a faster rate it will be an incredibly difficult task to find an analytical solution when the degrees of freedom increases. Even if one would succeed to derive the equations, one still has to solve them to get the information of the systems behavior. Of experience one knows that the equations in general are nonlinear and hence must be integrated numericaly.

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