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999 Uppsatser om Simulation techniques - Sida 25 av 67

Mobilapplikationer som hjälpmedel i underhållsindustrin : med fokusering på arbetsorderhantering

This thesis paper discusses the results of a survey which was conducted to investigate the potential usefulness of mobile apps in the maintenance department at Perstorp Specialty Chemicals AB. The paper contains four sections, a theory section, a method section , a section that explains the functionality of the app, and finally a results section where the results and conclusions of the survey are discussed. The theory section explains and discusses relevant terminology used in the computer science field and in the maintenance industry. The theoretical model used in this paper is also discussed. The methods section gives a stepwise description of the project and a description of platform and software used.

Praktisk tillämpning av virtuellt byggande i partneringprocessen

This thesis paper discusses the results of a survey which was conducted to investigate the potential usefulness of mobile apps in the maintenance department at Perstorp Specialty Chemicals AB. The paper contains four sections, a theory section, a method section , a section that explains the functionality of the app, and finally a results section where the results and conclusions of the survey are discussed. The theory section explains and discusses relevant terminology used in the computer science field and in the maintenance industry. The theoretical model used in this paper is also discussed. The methods section gives a stepwise description of the project and a description of platform and software used.

Dynamisk modellering av VSC-HVDC : En statisk och dynamisk modelldesign o?ver VSC-HVDC fo?r implementering i ARISTO

This thesis treats the subject of a complete steady state and dynamic model of the VSC-HVDC covering both the AC and DC system-side of the converter. The topology of the model is recreated after the scheduled transmission line in the south of Sweden, called SydVa?stla?nken. The topology covers both a simple two terminal connection as well as a multi-terminal one. This model is to be implemented in the power system simulation program ARISTO.

Design och tillverkning av en stereoanläggning med aktivt delningsfilter

This thesis is the result of the author?s interest in music and electronics, namely the design and manufacturing of a stereo sound system with an active crossover. In short it can be stated that an active crossover has many advantages over its traditional passive counterpart. The active design naturally results in a more complex system comprised of a multiple number of components. This report deals with the theoretical aspects of preamplifiers, crossovers and power amplifiers as well as power supply and control.

Ensilering i plansilo

The aim with this literature review is to describe the ensilage process in a bunker silo. The process from harvest and chopping to filling and unloading the silo is explained. The sealing of the bunker silo plays an important role for the final quality of the silage. This review covers some of the techniques used. There are many silage additives on the market, some of them are presented including how they act in the ensilage process.

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.

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.

Såromvårdnad på reptiler

As reptiles are becoming more common as patients in veterinary clinics, there is a need for creating new procedures regarding the care of exotic pets. The aim of this study was to develop a wound care routine adapted to reptiles, which can be used independently by a veterinary nurse due to the absence of prescription drugs or surgical techniques. The study was conducted by compiling the available research regarding wound care in reptiles, as well as research from related fields. The result indicates that polyurethane films and chlorhexidine-alcohol may advantageously be used on these patients. Hydrocolloid dressings and silver sulfadiazine dressings have adverse effects on wound healing and should not be used routinely in reptiles.

Bära lin - ett utforskande möte mellan tråd och visa

Simplicity, intimacy, freedom and one single threadcharacterize the knitting technique.In my project, I have studied ways of creating three-dimensional shape and structure using single threads and various knitting techniques. I applied my ideas in a collaboration with the singer Sofia Karlsson. The focus has been to design a portable object that can be used in pictures for the cover and promotion of her upcoming album.The material I studied, processed and used in creating the three-part object was linen. In the center stands a collar, that changes expression depending on how it is worn and which side is turned towards the outside. The collar interacts with a cylinder for her hands and a hairnet.

HAVECA-modellen : En metod för att fortlöpande säkra ett internt nätverk mot tredjepart

This thesis will address a problem concerning availability of information systems at an enterprise within the financial sector and its external suppliers, so called trusted third party. The information system resides on the internal network of the enterprise and must be available to both employees of the enterprise and the trusted third party simultaneously. This contradicts the company policy which disallows third parties access to the internal network. The HAVECA-model introduced in this thesis provides a framework of methods, each solving a sub problem identified in the model. The identified methods are hardening, verification, control and assurance, together supplying a method for continuously securing the internal network against a trusted third party.

A world of illustration - Ett utforskande projekt om Illustration som begrepp och koncept, dess gällande och möjliga användningsområden samt utformningen av en arbetsprocess

It is not about the perfect tune or pretty picture.It is always, always about the story. (Is or ought to be)When we release a new album, publish a book or show a brand newcollection of clothes or furniture etc. it is (or ought to be) because we havesomething to say (tell/share). The choice of language, in which we tell our stories,is vital for how they will be perceived.This is where illustration comes in. Illustration is a tool for storytelling, for contributingto the world in the most legible way.Illustration is legibility, it is the italic, the underline, the ?quotation mark?, the exclamation mark!It is not about the pretty picture.I want to talk about this.

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..

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..

Hur formas ett inlärningsklimat som är framgångsrikt över tid? : En observationsstudie om fotbollstränares beteenden och träningsaktiviteter

Aim and research questionsThe over-all aim of this study was to gain insight info how two male coaches of a specific soccer team behave in a practice environment with regards to educating the players.More specifically, the study sought to map the extent to which said behaviour matched two specific methods of learning; these being Teaching Games for Understanding (TgfU) and Enhanced Guided Discovery (EGD). Research questions: (1) Do the coaches employ the methods and guidelines, which are outlined in the educational plan provided by the soccer association? If so, what form does this application take in practice? (2) To what extent and in what ways do the coaches utilize feedback and questioning techniques in the education of players? (3) What similarities and differences in behaviour can be identified between the chosen soccer team?s two coaches?Method: The data for the study was collected through field observation. The subjects were two youth elite soccer coaches and observation of these coaches took place during five regular practice sessions on the soccer field. All data gathering and analysis were carried out using a modified version of the Coach Analysis and Intervention System (CAIS).

Parallell beräkning av omslutande volymer

This paper presents techniques for speeding up commonly used algorithms forbounding volume (BV) computation, such as the AABB, sphere and k-DOP. Byexploiting the possibilities of parallelismin modern processors, the result exceedsthe expected theoretical result. The methods focus on data-level-parallelism(DLP) using Intel?s SSE instructions, for operations on 4 parallel independentsingle precision floating point values, with a theoretical speed-up factor of 4 ondata throughput. Still, a speed-up between 7?9 are shown in the computation ofAABBs and k-DOPs.

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