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400 Uppsatser om Computational Fluid Dynamics - Sida 23 av 27

Dynamiska egenskaper hos håldäcksbjälklag belastade med gångtrafik

Concrete floors have traditionally had no problems with annoying vibrations. However with the demand for larger spans the floors need to be made more slender with a higher degree of utilization and lower mass. Therefore new floors may have problems with vibration serviceability. This thesis studies the vibration characteristics of hollow core slabs. The analysis was made in the finite element program Ansys. The hollow core slab was subjected to a varying force simulating one person walking across the slab.

Balanced Scorecard identifieringens dolda dilemma

The use of balanced scorecards have spread explosively throughout the world during the last decade. This management tool have become very common in a vide spread variety of organisations on all continents. Many balanced scorecard fails though and scorecard theorists often blame the identification- and implementation process as they claim that these lay the foundation for the use of the tool. As my literature study shows, academic research on the area is rare. Particularly the effect on the implementation process from organisational dynamics and organisational structures needs further research.

Patogenes för prostatacarcinom hos hund : en jämförelse med människan

This thesis investigates the possibilities offered to a working landscape architect by anincreased and altered use of digital 3D environments. A basic assumption is that increased useof digital three-dimensional environments promotes the creative processes and presentationoptions of landscape architects.The thesis is based on literature studies and communication with working landscapearchitects, and includes an investigation of the visualization methods available in the Blender3D modelling software. The thesis provides a thorough survey of what it means to model inthree dimensions, as well as of what modelling methods are feasible for a landscape architectto use. As landscape architects, we work with human and unique processes, and thus it isdifficult to develop standardized and automatic software for our profession. One possiblesolution is to turn to open source development, where software and models are shared andanyone can contribute.

Profilering av Södertörns Högskola : Studenternas inställning till lärosätets marknadskommunikation

Either if you are a company or a state owned organization, in our case Sodertorn University collage, it is very highly demanded and needed that there is a well-defined definition of the area you perform in. It is also highly recommended that you have an accurate and informal profile of the type of company you are and that you have an effective communication to your surroundings, so that they can perceive it the way the company wishes mediate the message. In this essay we have tried to explain the kind of profile Sodertorn University collage has, and how its current students perceive this profiling strategy.Sodertorn University collage profiles itself through three significant areas: the school claim themselves to be multicultural, multiscientific in an aspect when it comes to courses and programs, and as a school with an ambition to educate and form more critical thinking students. This has become Sodertorn University collages trademark and is quite significant for the school, something that we have examined in our survey among the current students. What we will examine in our essay will only be the two first mentioned components, multicultural and multiscientific programs and courses.We have also had the intention to do a comparison with an earlier essay from 1997 made by two economics students, and put our results in contrast to the earlier results since there were no previous research after this one.

Digitala tredimensionella visualiseringsmetoder : ett sätt att kommunicera landskap

This thesis investigates the possibilities offered to a working landscape architect by anincreased and altered use of digital 3D environments. A basic assumption is that increased useof digital three-dimensional environments promotes the creative processes and presentationoptions of landscape architects.The thesis is based on literature studies and communication with working landscapearchitects, and includes an investigation of the visualization methods available in the Blender3D modelling software. The thesis provides a thorough survey of what it means to model inthree dimensions, as well as of what modelling methods are feasible for a landscape architectto use. As landscape architects, we work with human and unique processes, and thus it isdifficult to develop standardized and automatic software for our profession. One possiblesolution is to turn to open source development, where software and models are shared andanyone can contribute.

Alla ensembler är en grupp människor : Musiklärares syn på arbetet med gruppdynamik i elevensembler

Syftet med denna studie är att undersöka, beskriva och analysera musiklärares syn på sitt arbete med gruppdynamik i ensembleundervisning inom olika musikgenrer. Metoden som har använts för att uppnå detta är kvalitativa intervjuer enligt hermeneutisk metod samt analyser. Analyserna utgår från teoretiska perspektiv hämtade från Lewin, Forsyth och Blumer och används för att definiera informanternas syn på ensembler samt beskriva hur olika faktorer påverkar varandra när det gäller dynamik i grupper. Resultatet handlar om hur informanterna definierar grupperna de leder och därigenom vad de anser skapar en grupp. Det handlar även om vilken energi som finns i en grupp, hur informanterna går till väga för att fånga gruppen i stunden samt varför de anser det vara viktigt och hur gruppers sammansättning påverkar gruppdynamiken och lärandesituationen.

Injektion till katt ? injektionsassocierad smärta samt injektioner i praktiken

Intramuscular injections to cats can generate strong reactions in some individuals while reactions of the same extent, according to the author, not always are recognized when using the subcutaneous route. The reactions are probably caused by fear, stress and/or pain. When the injection can generate pain one has to take that into account, which can be a limitation in treatment. It is well known that injections generate pain, but knowledge about the cause and processes of the injection-associated pain is limited. This is mainly due to the difficulty in finding objects to study pain on, high cost of use of laboratory animals and difficulty to obtain objective measurements. Although there is evidence that there may be a local muscle injury by intramuscular injection, it is not always that the extent of damage is related to the pain experienced. Facts about the causes of injection-associated pain have been studied in a literature review.

Implementering av Constant Fraction Detection vid avståndsmätning

This thesis is performed at Saab Bofors Dynamics in Karlskoga and investigates a technique for ranging with laser pulses. The investigated technique is called Constant Fraction Detection (CFD). Described briefly, the received laser pulse is split into two equal parts, where one part is delayed half the pulse width and inverted. This signal is added to the original pulse. The resulting curve has the shape of a laying S and the detection of the zero level is used to stop the time measurement.

Arena för ungt skapande. Hur biblioteket tar till vara unga människors kulturuttryck: exemplet Demoteket

The aim of this Master's thesis is to explore the function of public libraries as arenas for young people's artistic creations. It examines how the public library makes activities based on independent creativity visible, and what activities of this sort imply to the public library. The thesis also relates this to the public library's task in society. The main object of examination is Demoteket, an on-going project in the south-eastern parts of Sweden. In this project Länsbibliotek Sydost co-operates with Reaktor Sydost, a centre of resource in the fields of young communication and filmmaking.

Network Advantages in a Market Entry Context ? A study of the Swedish fashion business

Purpose: The purpose of this paper is to research and analyze how the establishment in new markets of small and medium Swedish fashion companies can be made more efficient from a network perspective. Methodology: The researchers have decided to take a phenomenological standpoint and undertake an exploratory study in order to gain understanding of the phenomenon of market entry and the use of networks. The researchers have chosen to undertake a qualitative study and to adopt an abductive approach. Two ?case companies? have been chosen which are Filippa K and House of Dagmar.

Konstruktion av patientsimulator för anestesimaskiner

A patient simulator for testing anaesthesia machines has been developed at Maquet Critical Care AB, to reduce costly and time-consuming experiments on animals. The device simulates human lungs regarding lung dynamics and volume, uptake of anaesthetic agents and the production of carbon dioxide, heat and moisture. Further demands on the simulator are durability and size; the device shall be compact enough to be moveable.The resulting simulator fulfils the requirements and enables better repeatability and ability to test extreme cases than experiments on animals do.Uptake of the anaesthetic agent is achieved in a active carbon filter and controlled by regulating the flow. The flow is created by a regenerative blower and controlled using a proportional valve. The uptake can be set by the user or by a simple uptake model modified to recursively handle changes in the concentration of anaesthetic agent.Carbon dioxide is fed into the system from a tank by a mass flow regulator.

Syntes av hydroxyapatit/ nanocellulosa kompositer

Cellulose nanocrystals (CNC) are great candidates for composite materials. The reasons why CNCs are such attractive materials for them are due to their great mechanical properties, high aspect ratio and low density. On the other hand, hydroxyapatite (HAp) is a kind of calcium phosphate and a main component of bones and teeth. The purpose of the present study is to make oriented nano-sized composites with CNC and HAp. Although some researchers carried out to make CNC composites with HAp for biomedical materials, nano-sized and oriented ones haven?t been achieved yet.

Kartering med autonomt fordon

För att mobila robotar skall kunna arbeta strukturerat krävs det att de har kännedom om hur omgivningen ser ut. Omgivningen kan antingen vara förprogrammerad eller så görs roboten självlärande. På Saab Bofors Dynamics i Linköping arbetas det med en mobil testplattform kallad Freke, som används för att bland annat utveckla och utvärdera navigeringslösningar. Intresse fanns för att vidareutveckla plattformen och få den att klara arbeta i okända miljöer. Ett första steg mot detta mål var att få systemet att kunna rita upp en egen karta utan tidigare kännedom om dess omgivningar.Uppgiften för det här examensarbetet blev därför att utveckla och implementera ett autonomt system som klarar att navigera och utforska en begränsad omgivning samt att rita upp en karta över densamma.

Rotningsstimulerande effekt och kemisk analys av vattenbaserad extraktion av vedartade och örtartade skott av Salix smithiana Willd. :

Cuttings of Lonicera xylosteum L. were treated with willow extract to study the response in rooting capacity. The extracts were prepared by mixing chopped pieces of Salix x smithiana Willd. with water in a warring blender. The investigation comprised 2 types of salix extracts based on differences and dynamics between twigs in winter dormancy and twigs with new shoots. To explore the rooting response, three tests were made.

Landscape? Urbanism : om semantik och språkets betydelse

I och med Landscape Urbanism har landskapsbegreppet sedan en tid upplevt en hausse inom arkitektur- och stadsbyggnadsdiskurs. I och med denna nya uppmärksamhet för landskapet har ett nytt behov uppstått: att diskutera vad som egentligen menas när man använder detta mångtydiga begrepp. Med detta fokus behandlar denna uppsats komplikationerna som uppstår när ordet landskap och dess ofta motstridiga betydelser används utan att kommunicera vad som avses. Med utgångspunkt i lingvistiska teorier hävdar jag därför att språket och således semantiken, ordens innebörd, är av yttersta vikt för att formulera och konstruera nya stadsbyggnadsteorier såsom Landscape Urbanism. För vad betyder egentligen Landscape inom Landscape Urbanism? Hur kommer det sig att ordet dels används för att referera till ytorna ?mellan husen?, men även används som ett begrepp som beskriver hela stadens dynamik? Hur kan dessa mycket olika tolkningar av ordet landskap existera under en och samma paroll ? Landscape Urbanism? Denna uppsats behandlar dessa olika tolkningar, men presenterar även ett sätt att hantera detta till synes alldagliga men mångfacetterade ord. Due to Landscape Urbanism the term landscape has experienced a recent hausse within architecture and urban design discourse.

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