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591 Uppsatser om One dimensional hydraulic simulation - Sida 19 av 40

Simulering av kötider för en alternativ trucklösning vid Holmens kombinat i Iggesund : Simulation of queueing times for an alternative unloading solution at the integrated milll in Iggesund

Dagens låga lagervolymer vid industrierna har inneburit högre krav på transportstyrningen av ankommande virke för att säkerhetsställa en kontinuerlig råvaruförsörjning. Kombinatet i Iggesund, som är en del av Holmen AB, har sett potential att effektivisera sin vedhantering vid det massabruk samt sågverk som utgör kombinatet. Vedhanteringen är idag tydligt separerad mellan massabruk och såg. Studiens syfte var att kvantifiera effekten av ett samarbete med vedhanteringen mellan massabruk och såg samt en förändring i lossningsresurser med avseende på relativa kötider för virkesfordon som ankommer till kombinatet. Med händelsestyrd simulering skapades en modell över kombinatet.

Letar Svenska kyrkan på rätt ställe? : - en kritisk diskursanalys av Svenska kyrkans reklamkampanjer

AbstractAim: The aim of this essay has been to study how the Swedish church has created the image of their religious activity through media. This has been by studying the three commercial campaigns launched by the Swedish church during the years 2000, 2001 and 2003. Questions asked are: How has the Swedish church chosen to profile it self? Which discourses can be recognized in the campaigns? Which messages has been communicated through the campaigns? How has these discourses created the image of the Swedish church?Method: The methodological framework is critical discourse analysis inspired by Norman Faircloughs? three-dimensional model. Thirteen images all part of the campaigns are analysed using a semiotic method.

Optimering av multiprocessorsystem med hjälp av schemaläggning

A well known optimization-problem of multiprocessor system is scheduling of tasks. In this paper I use a variant of previous known algoritm, (Fast Critical Path) for scheduling real-time tasks on a multiprocessor system. This is made in a simulation study in MATLAB. The system architecture is assumed to be a MIMD- machine, (Multiple Instruction stream Multiple Data stream) with bus-typologi and message-architecture. Scheduling was made on this system where the number of processors varying from five to ten.

Social taggning: En studie av en webb 2.0 tjänst i OPAC

The aim of this thesis is to study social tagging in an OPAC by looking at the tags of Ann Arbor District Library?s catalogue. In this thesis I analyse the possibilities of social tagging. The main questions to be answered are what is the distribution of tags in different categories, what are the differences between fiction and non-fiction and how do the social tags differ from the terms of the professional indexing practice. Studying 500 tags I find that subject matter was the most frequent category for tags assigned to fiction and non-fiction.

Vi döpte om biblioteket till Bibliotek and läranderesurser: Om imageskapande på högskolebibliotek

The aim of this thesis is to examine how four decision makers at a University College and a library director at the same University College perceive the profile, image and identity of their library. This University College library is used as our main example. We have evaluated the main example in relation to two other University College libraries, in order to obtain a deeper understanding of how these library directors view their own libraries and to attain a more multi-dimensional view of the main example of our study. Our intention is to analyse the current situation, not the past nor the future. Qualitative semi-structured interviews with decision makers and library directors have been conducted.

En tidsseriestudie av varviga sjösediment fra?n Kassjön

This thesis aims to analyse a time series containing the annual accumulation rate of minerogenic matter in the lake Kassjo?n. First there is a theoretical survey of some frequently used tools for the analysis of time series in the time domain and in the frequency domain. This survey is followed by a simulation study that illustrates how the theoretical tools work in practice. After this, the time series "toolbox" is used to analyse the time series from Kassjo?n (5701 data points).

Separation av två klasser av åtta-dimensionella reella divisionsalgebror

This thesis aims to analyse a time series containing the annual accumulation rate of minerogenic matter in the lake Kassjo?n. First there is a theoretical survey of some frequently used tools for the analysis of time series in the time domain and in the frequency domain. This survey is followed by a simulation study that illustrates how the theoretical tools work in practice. After this, the time series "toolbox" is used to analyse the time series from Kassjo?n (5701 data points).

Att spegla verkligheten - en studie av simuleringar i geografiundervisning på gymnasienivå

I arbetet görs ett försök att genom litteratur och elevintervjuer närma sig frågan om vilka förutsättningar för lärande som simuleringar i geografi erbjuder och vilka lärandeteorier som då blir relevanta. Intervjuer har därför gjorts med elever efter att de genomfört ett för undersökningen utvalt simuleringsspel. I arbetet ställs också frågan om hur elever uppfattar simuleringen som didaktiskt verktyg och ett antal svarskategorier struktureras. Slutsatserna är att lärandet i simuleringar i första hand tycks vara beroende av den egna praktiska erfarenheten, den sociala interaktionen mellan deltagarna och den emotionella laddningen. Elevernas uppfattningar av lärandeformen stödjer dessa kvalitéer, men tillfogade också betydelsen av variation i undervisningen och det inneboende spelrummets betydelse för kreativiteten..

Time Machine Computing for Media Improvisation

C3LOOPS is an application for DJs and VJs based on surface interaction. A system is said to be based on surface interaction if it presents content on a two dimensional, endless surface that a user navigates through zoom, pan and incremental text filtering where processing is tightly coupled with the content without breaking the workflow. C3LOOPS is designed to encourage improvisation and collaboration. During improvisation changes occur rapidly. Allowing navigation through time as well as the two spatial dimensions of an interaction surface the possibility of unlimited undo operations opens up.

TCP/IP i taktiska ad hoc-nät

TCP (Transmission Control Protocol) is a transport protocol designed for the wired Internet. In wireless networks packet losses occur more frequently due to the unreliability of the physical link. The main problem is that TCP treats all losses as congestion, which leads to a lower throughput. Ad hoc networks are multihop wireless networks of mobile nodes, where each node can allow other packets to pass through it. Topology changes often occur and may lead to packet losses and delays, which TCP misinterprets as congestion.

SmartMedia-controller på chip

This report deals with the design of a controller for SmartMedia? flash memory cards, based on a hardware description found in the SmartMedia? Interface Library - SMIL. The design was made on logic gate level, using standard cells in OrCAD Capture. After simulation of the design in PSpice A/D, it was exported as an EDIF netlist, which was used to make a chip layout in L-Edit, a layout tool for making integrated circuits. The layout was made using a method called Standard Place and Route - SPR, where the layout tool places standard cells from a library and connects them according to the EDIF netlist.

Livslångt lärande och folkbibliotek

The purpose of this master thesis is to investigate and analyse how the concept of lifelong learning is expressed in political documents concerning public libraries and education and how it can be related to earlier concepts of education within the discourse of public libraries. Focus is the official approach to the concept of lifelong learning and public library. The documents examined contain the political aims for education and culture policy on a national and local level. The theories used in the study concern the background and meaning of the concept of lifelong learning, they describe public libraries and their earlier perspectives of education and they also give a picture of practices of governing within the framework of public libraries. The purpose is to see how the speech in the documents is reflected in discourses of society and public library.

Modellering av indunstning på Södra Cell Mönsterås

Evaporation is a part of the chemical recovery department at wood pulping mills. The purpose of evaporation is to remove water from the black liquor, which makes the liquor combustible. The process is very energy demanding, and having a well-functioning model of the system is of greatest interest. The model can then be used to study energy consumption and to test different control strategies. Two models have been developed during the master thesis.

Lagring av kyla i bergrum : Undersökning av ett nedlagt oljebergrum

This thesis considers the use of an oldrock cavern as thermal energy storage.With a large system of differentchillers a model was created to find anappropriate future system. There aremainly two trajectories to take. Eitheran installation of chillers needs to bemade or the rock cavern can be used tomeet the future demand of districtcooling in Solna, Sweden. Additionallythis thesis investigates the possibleuse of different techniques to utilizethe phase change energy of water.Simulation shows that it?s possible toutilize the phase-change energy of afluid; however it?s not economicallyfeasible due to the thermodynamiceffects on the Carnot cycle.

IT-konsultens konsultationsprocess

How does IT-consultants reason in their consulting process regarding the development of a clients IT-based internal recruitment system? The purpose with this paper is to investigate how an IT-consultant is reasoning in a consulting process and investigate whether consultants are using established models and methods in their work. We have chosen to work with a qualitative examination to attain our purpose. In our work gathering the empirical facts we have been working with a case study, an observation and a simulation exercise. The combination of these has made it possible to carry out the paper and produce the most correct data possible.

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