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1141 Uppsatser om Software maintenance - Sida 20 av 77
Evaluation of RCM implementation process in Vattenfall
Service and Vattenfall, Hydropower organizations: a study and
analysis of its current status
Vattenfall AB is a large producer of electric energy where approximately half of the energy comes from hydropower. Vattenfall Hydropower has got almost a 100-year old history and the company has developed a lot since 1909. After that the number of power plants increased and the competition got more intense, there were higher demands on the reliability. One way to secure the reliability with a good satisfaction at the power plants is to implement a maintenance method named Reliability-Centred Maintenance. RCM is a result of the introduction of the complex aeroplane Boeing 747 in the 1960?s.
Affärsmöjligheter med Smarta Elnät : En studie som undersöker möjligheter och hinder i utvecklingen av det svenska elsystemet
Distributed, renewable generation-units and more efficient use of electric power,demands a developed electric grid. This grid is often referred to as the ?Smart Grid?.This future electric system rise expectations among actors in the existing electricmarket. International organizations share visions of opportunities for electricityconsumers and new actors, ready to enter the market. At the same time, electricutility companies may question the need for some of these upcoming changes, as theyare sometimes expected to lead the development.This paper therefore seeks to investigate the business opportunities related to SmartGrids.
Konstruktion av Industriellt Vibrationsmätningssystem med signalbehandling baserad på Digitala Vågfilter av Lattice-struktur
In this bachelor thesis a complete prototype of an industrial vibration measurement platform has been developed. By measuring a number of variables such as acceleration, temperature and speed conclusions can be drawn on machinery health. The aim is to evaluate hardware and software solutions for a possible future product. Based on a requirement specification a proper hardware design has be developed. The hardware consists of a four-layer PCB with an ARM Cortex-M3 microcontroller and about 250 other components. The PCB was designed, assembled, tested and finally housed in a box.
Utvärdering av mjukvara inom processindustrin
This study is an evaluation of the runtime watch function in a OEE software, knownas ProTAK. OEE stands for Overall Equipment Effectiveness, it?s a way to measurethe factories process efficiency. The runtimewatch function allows the user to setup and monitor certain critical objects that are of importance for the pulp and paper process at the mill. The data from the runtimewatch can be correlated towards the suppliers specification for the components.
Upphandling av vinterväghållning
AbstractThis report was undertaken at the request of the Management and maintenancedepartment of Swedish National Road Authority (Vägverket Region Sydöst) inJönköping.In 1992, the management and maintenance of Swedish roads were laid out onexternal contractors. When putting out a tender for the work, the foundation isfrom a national set of rules which are in constant change. This report is limited towinter road upkeep.The trend in the invitation for tenders is that it is moving from the moreconventional executional demands towards the less controlling demands. Thedownside of functional, less controlling demands is that it is difficult to articulatehow to measure them. The order authority therefore has to find ways to makesure to get what has been paid for.In connection to the invitation for tender of winter road upkeep for 2005, the newset of rules, ATB Vinter 2003 was deployed.The main purpose of this thesis is to see which the big changes in the set of rulesare and how these changes affect the organisation and activities of the contractor.It is also studied how the changes in execution is perceived by road users and howit affects the possibilities of the contractor to come as a newcomer to a new areaof administration.Interviews and examination of sets of rules has led to a list of a number ofchanges that the contractors feel affect their work in any sense.Views from road users that have come in to the order authority have beenscrutinized to see how they have experienced the change.
Hållbar design för gravplatser
A well-planned grave with a sustainable selection of plants facilitates easy maintenance for both staff and the holder of the right of burial. It also helps reduce the negative impact on the environment.As in many other areas, the environment is high on the agenda within the cemetery administration. One of the major concerns is the impact of the choice of plants for the grave. Within the industry there is a great motivation and willingness to adapt to a sustainable work mode and this has spawned a number of project works. In autumn 2009 the partnership project, ?Environmental aspects of planning and maintaining graves?, was started in Movium (at The Swedish University of Agricultural Sciences).
Genusbias i suicidprevention - en litteraturbaserad studie
Introduction: Suicide is a major public health problem both internationally and in Sweden. Itis known in research that sex and gender have a bearing on the incidence of suicide andattempted suicide. Gender Bias in medical research could lead to medical errors and to thatthe problem is made invisible. That is why it is important to identify and eliminate them. AimThe purpose of this paper was to examine whether there is gender bias in scientific articlesdealing with suicide prevention interventions and how this is expressed.
Undersökning och framtagning av ett moduluppbyggt datainsamlingssystem
This report is about a thesis that is performed in and for SYSteam Engineering AB in Motala. The thesis work is divided into three parts, study of the market, programming and electronics. The study part consists of examining and comparing different data acquisition systems for testing of different circuit boards, taking into account the modularity, real-time applications, mobility, environmental, interface hardware and software, to be able to define a general module-based data acquisition system in both hardware and software that enables for future developments.The programming part consists of getting started with Visual Studio, which integrates the Measurement Studio for C#. NET. Measurement Studio includes classes and user controls for testing and measuring and offers tools for acquisition, analysis and presentation of real world data.
Framtagning av ritplattestyrd penselsimulation för GIMP
The project was intended to produce a brush simulation plugin to the image processing program GIMP which would use a 6DOF drawing tablet for user input.Too ambitious goals coupled with compability issues between the resources used resulted in that no meaningful software was produced. Experience was however obtained, and this paper is intended to give an overview of relevant concepts for- and the process ofcreating a brush simulation..
Storstadssame, fusksame, halvsame eller lappjävel? : En religionssociologisk analys av samisk identitet inom nutida skönlitteratur
Research regarding the maintenance of the Sami language shows that the Swedish society has a big influence on the development of the Sami identity and also the maintenance of the Sami language. The assimilation of the Sami language and the traditional Sami religion was forced mainly by the Swedish education form and the Swedish church. In modern times many different forms of Sami identities have been developed due to the scattering of the Sami people, and also because of the urbanization of the Swedish society. The Sami nature religion is still alive in the Sami group, thanks to the mythological stories told and preserved by their oral tradition. The purpose of this assignment was to make research of how the Sami identity is being presented in three current Swedish books.
Hållbara projekteringsverktyg : Från byggnadsinformationsmodell till simulering ? en utvärdering av Revit och Virtual Environment
This study examines the use of building modeling and energy simulations in the design process of a building. The take-off point is the notion of energy simulations being needed early and throughout the building design process, and that the lack of energy simulations may be explained by the fact that they are time consuming and therefore often too expensive. A greater interoperability between software tools used by relevant disciplines, such as the architect and the energy specialist, would create smoother workflows, which would reduce this cost and open up for more frequent and iterative energy simulation processes. The study is an assessment of the modeling tool Revit and the simulation tool Virtual Environment and whether they can create smoother workflows, and make leeway for a more frequent use of energy simulations throughout the design process. It also investigates the limitations of what can be examined by simulations in Virtual Environment. This will hopefully help clarify the future role of energy simulations in design processes. The method is a trial by error approach of testing the two software tools by building and simulating a model. The results of these tests show that the workflow is not optimal (and therefore time consuming) for frequent and iterative simulations throughout the design process, but it also reveals some great possibilities of what can be performed with these two powerful tools at hand. Further development with regards on platform independency of the building information model, including seamless exporting and importing, seems necessary to strengthen the future role of energy simulations..
Simulering av miljoner grindar med Count Algoritmen
A key part in the development and verification of digital systems is simulation. But hardware simulators are expensive, and software simulation is not fast enough for designs with a large number of gates. As today?s digital zesigns constantly grow in size (number of gates), and that trend shows no signs to end, faster simulators handling millions of gates are needed. We investigate how to create a software gate-level simulator able to simulate a high number of gates fast.
Nerver i karpala flexorretinaklet på häst
The anatomy and physiology of reptiles and mammals are in many ways different, and will therefore possibly complicate anesthetic administration. Lizards are ectothermic and one should keep in mind that a decrease in the lizard?s environmental temperature may result in reductions in anesthetic metabolism. Respiratory depression is a profound problem because lizards lack a diaphragm, making inhalation and expiration completely active processes. This, in combination with cardiac shunting and breath holding makes the effects of anesthesia unpredictable.
Systemanalys flingtork : Produktionseffektivisering
BillerudKorsnäs is a leading global provider of primary fiber-based packaging materials and on Gruvöns Bruk in Grums, they have chosen to invest millions in the boiler at the facility to increase the total capacity of the factory. This results in the Pulp Flash Dryer at Gruvön being burden more, which makes it important that it is of great reliability and can be run with a high capacity. The reliability of the Pulp Flash Dryer at Gruvön is not as good as one could hope, which leads to reduced availability and production, as well as to increased maintenance costs. There are a number of different reasons for this, but all the casual links are not known.The purpose of this project was to perform a system analysis of the Pulp Flash Dryer to identify bottlenecks and the most critical parts from a capacity- and availability perspective. Appropriate methodology for the system analysis was used and would be used in a structured way to perform the analysis with data from the process and the maintenance system.
Mjukvarubaserad 3D-renderare
Abstrakt Produkten som jag har utvecklat är en mjukvarubaserad 3D-renderare. För att göra en sådan produkt är man tvungen att gå djupt in i området 3D och utföra alla beräkningar på egen hand. Dessa tar annars grafikkortet hand om. Denna rapport förklarar varför jag har valt att göra en egen mjukvarubaserad 3D- renderare och vad den är för något och i vilka områden den används. Här förklaras även min syn på programmering, digitala spel, vad programmering innebär för mig och hur min syn på spel har påverkat mig med tiden.