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9374 Uppsatser om Principal component analysis - Sida 4 av 625

Modersmålslärare : klarspråk eller tunghäfta?

This research is about different perspectives, offered by three mother tongue teachers, one principal and also featuring a representative from Skolverket, on the subject: teacher legitimation for mother tongue teachers, mother tongue teachers opportunity for competence education and the future of mother tongue education in Sweden.The theoretical framework is mother tongue language, globalization, the post-colonial theory, power and social inequality. A qualitative approach was used including five interviews taken place in Stockholm, the results does not however represent the whole country nor the community of Stockholm itself.The result shows that mother tongue teachers thinks the teacher legitimation does not mean anything regarding their already low-status. Even principal and representative from Skolverket express their concern towards the 'non-demand' for mother tongue teachers to get their legitimation and they feel there is a lack of ambition from decisonmakers to include the mother tongue teachers.As per today there is no higher education for mother tongue teachers leading towards an exam. Mother tongue teachers are worried about their future although principal and representant takes a bright outlook. .

Prediktering av komponenters mognad/kvalitet utifrån felkodsutfall

This master thesis has been carried out at Scania R&D at the department of Powertrain Control System Development during the winter 2011/2012. The purpose of the thesis was to produce a method that with the result of troubles codes from the field testing would be able to say something about the maturation of a component, in this case the VGT, variable geometry turbocharger. To start with, it was necessary to investigate hich information was available. After the information been summed up in tables and charts, this so that it was possible to understand the huge amount of data, the calculations started.Since the thesis was about maturation of a component the proportions were calculated of components that had a trouble code in contrast of those who passed the test without a trouble code. This Thesis includes background information about basic of statistics and about the company Scania and its testing process.

Redovisning är meningslös : En studie om redovisningens roll i AP-fondernas onoterade fastighetsbolag

Vår undersökning syftar till att utreda vilken roll den finansiella informationen spelar för att minska informationsdiskrepansen mellan AP-fonderna och de onoterade fastighetsbolag som fonderna är delägare i. Informationen har samlats in med en kvalitativ metod genom intervjuer med både AP-fonderna och de onoterade fastighetsbolagen de äger och deläger. Teorin som vi utgår från för att undersöka vårt syfte är agentteorin, dessutom använder vi teori för att beskriva på vilket sätt redovisningen används för att minska just principal-agent konflikten. Det som vi kommer fram till i vår studie är att fastighetsbolagens redovisning spelar en begränsad roll för att minska principal-agent konflikten mellan AP-fonderna och de onoterade fastighetsbolagen. Ägarkoncentrationen gör det istället möjligt för parterna att kommunicera genom styrelsemöten och annan rapportering, och fastighetsbolagens redovisning får därmed en mer begränsad roll i att minska principal-agent konflikten..

Utmattningsberäkning av hydraulikkopplingar : Metoder och beräkningar gällande utmattningsteorier

The purpose of this thesis is to investigate the fatigue life of two components in different hydraulic quick couplings. The crack which initiates the fatigue failure usually occurs in the bottom of one of the threads. Thus, the threads in the coupling are carefully investigated. A few different approaches for determining the fatigue life are studied for each component. CAD (Computer Aided Design) models for both components are created and analyzed with FEM (Finite Element Method).

VD:s incitament i form av rörliga ersättningar och dess påverkan på bolagets riskexponering: En empirisk studie av svenska bolag listade på Nasdaq OMX

The recent financial crisis has entailed in a fierce debate whether CEOs variable remuneration has caused unsound risk exposure in public companies. Hence it is considered as interesting to elucidate if this connection exists empirically. With grounding in principal-agent theory, and its implicit assumption of risk adverse agents, this study aims to find empirical evidence for a positively correlated relationship between CEOs variable remuneration and company risk exposure. Through a regression analysis of multidimensional data from 102 listed Swedish companies during the period of 2000-2009, we show that the relationship between CEOs variable remuneration and company risk, in contrast to our expectations, is significantly negative. The coherent result is interpreted as the inherent risk in companies seems to explain the usage of variable remuneration for CEO, rather than vice versa.

Watashi wo aishite ? älska mig : En lacaninspirerad läsning av Haruki Murakamis Sputnik Sweetheart

A rhetorical analysis of the educational interactive film ?Riskprofilen?, produced by the Swedish Civil Contingencies Agency (Swedish: Myndigheten för Samhällsskydd och Beredskap). This essay uses the theories and methods of Procedural Rhetoric, as described by Professor Ian Bogost, and Visual Rhetoric, as described by Professor Brigitte Mral to analyse the interactive and visual component parts of the artefact, and compares them to the intended purposes of the artefact as stated by documents pertaining to its creation, found to be those of educating the public; marketing the agency; and driving traffic to its webpage. The artefact is through analysis found to fulfil the purposes of marketing the Agency and of likely increasing traffic to the website upon which it is hosted. Regarding the primary, educational purpose this analysis finds that the artefact does not teach a user the accident-avoidance strategies it claims to do, but is dependent upon further materials..

Personlighetsvariationer hos mjölkkor

Syftet med denna studie var att undersöka om det fanns olika personlighetstyper hos mjölkkor av raserna SRB och SLB och om dessa personlighetstyper skilde sig mellan ras, ålder och vilken sida djuren stått på i lösdriften. Korna observerades i tre olika testmiljöer för att se huruvida konsistenta de var i deras beteenden: ostörda i lösdriften, vid mjölkning och med ett främmande objekt i lösdriften. Beteenden som studerades var normala beteenden, sociala beteenden, tramp och sparkningar vid mjölkning och interaktioner med det främmande objektet. Tolv beteendevariabler användes i en PCA (Principal component analysis) och visade två komponenter som tillsammans kunde förklara 51,2 % av den totala variansen. Den första komponenten speglade aggression och extraversion, som ingår i medgörlighet och extraversion i den mänskliga femfaktorsmodellen.

Metodik för utmattningsberäkning av svets i vibrationsmiljö

In this work, a method was developed and evaluated for calculating the life of welds under the influence of fatigue loads from a vibration environment. Typically, a shaker table is used for testing a component against vibration loads. The shaker table creates a vibration environment that is defined in the frequency domain by a power spectrum.Similarly, a virtual vibration table can be used to calculate the same type of load environment, which can then be used to calculate the expected lifetime. The benefit of this method is that it can be used in design, as well as in simulation of tests before physical verification tests are carried out.Today there are methods for calculating fatigue life of non-welded base material, but since many components contain welded joints, there is a need to apply this method to those types as well. To achieve this, the thesis combines two different areas, which together provide a method for fatigue assessment of welds using a virtual shaker table.The methodology is carried out by modeling the component, and its welded joints, in a finite element program.

Konstruktionstudie av en ångexpander

This thesis applies to a novel steam expander, one part of a steam engine system, a wobble plateengine. The piston in the expander moves axially with the outgoing rotating shaft and is locatedon a plate, why the engine type is called axial engine. When steam is applied to the plungers theplate wobbles creating a rotation on the shaft going thru the wobble plate. The steam expander issupposed to be used in exhaust gas recovery (bottoming cycle) applications and small scaleenergy production. The commissioner is Ranotor Utveckling AB.

Investeringsbeslut för energieffektivisering i monarken

The purpose of this essay is to describe how Boverkets Byggregler has affected the cost ofnewly built houses from 2003 to 2012, to Boverkets Vision 2025. The purpose is also to findagent-principal relations in the construction sector.When investing in an energy efficient house the operating costs are reduced compared to aconventional house. But due to the lower operating costs, the investment cost rises. In thisstudy, we find out if it is economically viable to invest in an energy efficient house comparedto a conventional house from the customer's perspective.The study's approach has been qualitatively where we in collaboration with Derome Hus hadaccess to three conventional reference houses and a passive house and data that was necessaryto conduct viability assessments on houses. We conducted five interviews with people fromDeromekoncernen and Varbergs kommun.The calculation methods we have used in this study are present value method, annuity methodand a sensitivity analysis.

DC/DC-omvandlarplattform med DPA-switch för telekomprodukter

In recent years, the penetration of new players on the telecom market hasdrastically increased the work pace, affecting both design and production. Inthis report the technical and economical potential of a DC/DC converterplatform is investigated, in order to shorten the time of the design process.This is done in comparison with the present discrete type designs. PowerIntegrations offers a product, the DPA-Switch?, enabling this.By developing a wide DC/DC converter platform based on the DPA-Switch?,many advantages are gained. The component count is decreased by up to48 % and the yield increases by up to 2.9 % which in all yields a costreduction by up to 43 % or ?390 000 for 100 000 manufactured units.

Vilket matematiskt material finns i den fria leken på förskola : vad väljer pojke respektive flicka

This research is about different perspectives, offered by three mother tongue teachers, one principal and also featuring a representative from Skolverket, on the subject: teacher legitimation for mother tongue teachers, mother tongue teachers opportunity for competence education and the future of mother tongue education in Sweden.The theoretical framework is mother tongue language, globalization, the post-colonial theory, power and social inequality. A qualitative approach was used including five interviews taken place in Stockholm, the results does not however represent the whole country nor the community of Stockholm itself.The result shows that mother tongue teachers thinks the teacher legitimation does not mean anything regarding their already low-status. Even principal and representative from Skolverket express their concern towards the 'non-demand' for mother tongue teachers to get their legitimation and they feel there is a lack of ambition from decisonmakers to include the mother tongue teachers.As per today there is no higher education for mother tongue teachers leading towards an exam. Mother tongue teachers are worried about their future although principal and representant takes a bright outlook. .

Säg det! : En undersökning om hur rektor kan synliggöra lärares undervisningsförmågor likväl som läraren kan synliggöra elevens lärande ? en parallellprocess

-------------------------- 4AbstractThis study is a qualitative case study in order to delineate how visible learning processes in the classroom. The study draws its theory from researcher John Hattie's findings about effective teaching. Data collection is taken from a class in grade 2 in a medium-sized Swedish municipality. The result demonstrates how the communication takes place in the classroom based on the teacher's strategies and planning in relation to pupils' interests and their own initiative. Is there a mutual feedback between teachers and students while teaching? From five perspectives, and the definition of what visible learning is all about, the results shows many good examples of excellent teaching.

Godshantering av flygunderhållsartiklar - En värdeflödesanalys ur ett förbättringsperspektiv

Saab Component Maintenance in Linköping, Sweden, offers maintenance, repair andoverhaul (MRO) services for civilian and military aircraft components. Lately, thedepartment has struggled with slow throughput rates, despite various counteractingattempts. Studies show, that large parts of the delays derive from the logisticsdepartment where goods arrive and dispatch. Therefore, Saab wants to carry out anextensive analysis of the department in order to further investigate what is causing itsslow throughput rates.The thesis begins with extensive mapping over Component Maintenances whole valuestream to find out how departments interact with each other and which roleindividual departments have in the total supply chain. Out of 13 000 different partnumbers, components were divided into five product families.

Kompatibilitet med BIM-koncept : Revit Structure 2012 och Robot Structural Analysis 2012

This thesis deals with the compatibility between analysis software Revit Structure2012 and Robot Structural Analysis 2012. The purpose is to become more aware ofinformation management models to be compatible across different softwareapplications. The structural model is made to be optimal for the compatibility of othersoftware Aim is also to gain an understanding of the transferring methods that exist,and which method is most convenient to use and to examine whether the methodswork in practice. Objective of this project is to make the modeling processtime-efficient for constructors. Models do not need to be structured in severaloccasions in different software; it only needs an optimal model that transfers properlybetween software.The method used in the thesis consist cases where the transferring process isexamined.

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