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11280 Uppsatser om Failure mode effect and analysis - Sida 49 av 752
Statusbedömning av asynkronmotorer
Induction motors, often referred to as the workhorse of the industry, play an important role in production today. Therefore, it's important to diagnose any faulty induction motor prior to failure to avoid costly and time consuming production stops.This thesis compares methods for diagnosing induction motors in operation, MCSA, Park's vector approach and the standard method used by Swedish industries today. By simulating broken rotor bars and short-circuit in one of the windings, each method is tested and the results are compared using matlab.The results need further verification due to uncertainties of the condition of the test motor, even though the experiment gives a hint of the different advantages of each method. A combination of the methods should be able to tell if the motor needs further examination..
The legacy of the mill : a metal polluted forest soil in Gusum
Soils in a metal contaminated site on Stångberget in Gusum in southeastSweden were investigated and compared to relatively unaffected soils a fewkilometres away. Pollution came from historical release of untreated flue gasesfrom a brass mill. The objective was to find information on how high the metalconcentrations are, if metals from the polluted soil affect the surroundings andif the metal contamination affects the microbial community. The soil wasinvestigated using several different methods, such as field XRF measurements,chemical analysis of metal, carbon and nitrogen content, pH, acid neutralizingcapacity, texture, soil depth, field leach tests, sequential extraction and microbialfunctional profiles. The study showed that copper and zinc concentrationswere above Swedish Environmental Protection Agency guidelines for lesssensitive land use on the entire investigated area.
Kalkningens påverkan på fosforlöslighet : skakförsök baserade på två svenska långliggande kalk- och fosforgödslingsförsök
Eutrophication is an environmental problem that affects more than ten percent of Swedish lakes. Excess nutrients increase the growth of algae, and cause major problems in the ecosystem through oxygen-free bottoms, fish kills, and at worst dead bottoms. Agriculture accounts for 44% of human emissions of phosphorus to lakes and rivers. Leaching occurs of particle bound phosphorus and of dissolved
phosphate. The amount of phosphate in the soil solution that may be leached is partly due to the prevailing pH in the soil solution.
The purpose of this study was to investigate how the relationship between phosphate solubility and pH was affected by liming.
Europeisering och Programmatisk Förändring : "Europafrågan" i Polska Partiers Politiska Program Under 2000-talet
This study deals with the phenomenon of European integration and its impact on national party programs in Poland, a current member state of the European Union. The author will argue that the question of European integration has left a mark on the political party programs of two mainstream domestic parties on opposite sides of the ideological dimension, in the form of a certain degree of convergence regarding the ?European issue?. Relating the result of the analysis to the theoretical structure of Europeanization and sociological institutional change, the essay will attempt to show a possible link between them. Although this trend does not seem to indicate any dramatic effects of the membership per se in the programs (the national arena seems, in most cases, be of more value for party activities) there is an indirect effect in the form of the presence of Europarties and a pronounced incentive for social and economic adaptation..
Stereotyper i den virtuella världen. Hur visuella intryck påverkar deltagares uppfattningar av virtuella agenter
The purpose of this study is to examine how participants perceive virtual agents shown on a computer display. In particular, it is explored to what extent participants transfer gender and attraction stereotypes that are commonly applied in the physical world to virtual agents. Previous related studies have often explored only text or voice interfaces, without any visually appearing agents, and here indeed found evidence for a transfer of gender stereotypes. Our hypothesis was that the addition of a visual agent interface would reinforce this effect. The results support our hypothesis that participants transfer human gender and attraction stereotypes onto virtual agents, as well as that these processes are affected by the visual representations of the agents..
Sjuksköterskestudenters uppfattning om interprofessionellt lärande
Aim: To evaluate nurse student?s apprehension of an interprofessional seminar as part of training. Method: A descriptive, qualitative study built on the analysis of 43 questionnaires and one group interview with nurse student?s who participated in the seminar. For the analysis of the collected material we used the method of analysis of contents as described by Graneheim and Lundman.
Konsekvenser av oplanerade verksamhetsavbrott orsakat av fel på medicinteknisk utrustning : En studie inom Länssjukhuset i Kalmar med fokus på drift, säkerhet och kvalitet
Title:The issue of unplanned stoppages caused by failure in medical technology equipment ? A study within the hospital of Kalmar with a focus on manage-ment, security and quality Author:Anna Förster, Ambika Linder, Sandra Nyqvist Tutor:Thomas Karlsson Institution:Linnaeus School of Business and Economics - Linnaeus University Kalmar Date:2011-01-14 Purpose:The purpose of this study was to examine unplanned stoppages caused by medical technology equipment failure in the healthcare operation within the hospital of Kalmar. Our study is based on a number of specifically selected incidents which show the consequences these disruptions cause in management, security and quality within the operation. Our intention was also to examine what role the medical technology department of the hospital plays in the care production operation during these unplanned stoppages. Method:Through a qualitative study we have generated material from a number of interviews with staff working in the hospital of Kalmar.
Har energidryck någon kognitiv effekt i kombination med alkohol? : Med fokus på komponeneten koffein
Background: Energy drinks have been found in everyday-stores since 1997 and their popularity have increased over time. Consumtion of energy drinks takes place because of their ability to increase concentration and to decrease fatigue but also because of the popularity the drinks have got. Target groups for these stimulating beverages are adolescents and young adults. Energy drinks contain caffeine, taurine, glucuronolacton, carbohydrates and B-vitamins and voices have been raised about the eligibility for young people to ingest large quantities of these kinds of substances. Because of the properties of these substances it has become popular to mix energy drinks and alcoholic beverages to make up for the negative effects of alcohol and to be able to drink larger quantaties.Aim: The aim of this literature work was to investigate cognitive effects of the combination of caffeine in terms of energy drinks and alcohol and to determine if these effects could be harmful.Method: This literature work is based on five scientific articles retrieved from PubMed.
"Man kommer inte särskilt långt om man sitter på sin lilla ö" : En studie om samverkan kring ungdomsarbetslöshet
The aim of this study was to examine the view that officials involved in youth unemployment have on the significance of collaboration between organizations working with unemployed youth. The study was based on nine qualitative interviews with officials from PES offices and from municipalities such as job coaches. The results were analyzed based on qualitative content analysis. The analysis led to two different themes: conditions and the individual. In the analysis two different theories were used, new institutionalism and Lipsky's theory about street-level bureaucrats.
Lugnet före stormen : En studie om hur Räddningstjänsten Medelpad arbetar med kommunikation och planering innan en kris
The United States use of Unmanned Combat Aerial Vehicles (UCAV) or drones for targeted killings of terrorists has been on the rise in recent years and the method has become the core element of president Obamas strategy in the war against terror. This study examines the deterrent effect of targeted killings on terrorism using UCAV/drones as a method of counterterrorism. Building on the literature on counterterrorism, UCAV, targeted killings, deterrence theory and statistics on terrorism the study provides a case study of the CIA drone operations in Pakistan between the years 2004-2010. The goal has been to analyze drone operations and the extent of terrorism from the beginning of the drone campaign until 2010. This as a means of identifying possible trends in terrorism activity due to the occurrence of drone strikes.
Kommunikationskanaler i ett byggprojekt. En studie om vilken inverkan olika kommunikationskanaler har vid förändring av ett arbetssätt.
The idea for the project emerged when Nilorn wanted to get better control over their supplychain and improve operational efficiency. The company also want to reduce their expenses inthe continuous process of improving profitability. By choosing the right option oftransportation and mode of transport there are large potential savings for the company. Thisenables Nilorn to reduce the transportation costs and strengthen the environmentalresponsibilities by reducing their environmental impact.The flow of goods within Nilorn has over the past years increased significantly and most ofthe gods today is transported by air. The aim of this thesis is to analyse the supply chain of thecompany and evaluate the potential economic savings in this area.
Examenskonsert
In this essay I analyze the performative aspects relating to Marina Abramovi?'s The Artist Is Present, which took place in spring 2010 at MoMA in New York, from the context of the artist and work, institution and documentation. In this performance work, for the duration of the exhibition, Abramovi? sits completely still opposite another chair where anyone from the audience may sit. The art arises through this participation.
Bortglömd art på frammarsch : Om vad som utmärker manligt shoppingbeteende
Vi upplever att männen uppvisar ett förändrat shoppingbeteende, vilket bland annat visar sig genom ett större intresse för såväl modemagasin som modebloggar. Detta kan vara ett tecken på ökad individualisering, genom vilken mannen vill uttrycka sin identitet och självbild. Det blir därför viktigt för företagen att nå denna grupp.Uppsatsen syftar till att ge en mångdimensionell beskrivning av vad forskningen behandlat inom mannens, respektive kvinnans shoppingbeteende och hur det växt fram. Uppsatsen syftar dessutom till att, dels genom litteraturstudie, dels empirisk studie, undersöka, diskutera och tolka vad som utmärker mäns shoppingbeteende i Generation Y. Vidare syftar uppsatsen till att förutsäga vad som kommer att känneteckna det manliga shoppingbeteendet i framtiden. Vi har arbetat utifrån en kvalitativ metod för att på så sätt uppnå ett djup i uppsatsen.
Ämneshantering hos flerspråkiga med Alzheimers sjukdom
In previous studies there has been indications that multilingualism has a delaying effect of the onset of dementia and damage on cognitive abilities (Bialystok et al., 2007; De Bot & Makoni, 2005, s. 58). Cognitive abilities refers to memory, attention, language, abstract thinking and understandings among other things (Läkemedelsverket). Other studies have seen that individuals with Alzheimer's disease (Swedish abbreviation AS from here on) have difficulties with managing a conversation (Hyltenstam & Stroud 1989). This study aims to describe the topic treatment in bilingual individuals with AS and compare their different languages.
Eskalerande projekt i offentlig sektor - En fallstudie av polisens utredningsstöd
A large number of system development projects are allowed to proceed for too long, and leads to undesirable project outcomes. Research shows that more than half of the authorities involved reported that at least one of their projects have exceeded their budget, and that a third of all the projects had exceeded the budget. This problem led to the following research question: ?Which factors can explain projects continued escalation within public authorities?? To answer the question, a qualitative case study of the Swedish police?s implementation of PUST, a sort of case management system was conducted. The project received considerable media attention and a large amount of criticism was directed towards the project, partly because the project exceeded the timeframe and budget set at the start.