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5033 Uppsatser om Decision model - Sida 65 av 336
Utredning av möjlighet att automatisera trucktrafik
This master thesis investigates the possibilities of using GPS-information from trains to create a model of a railway system, register the routes of the the trains and predict how the trains will travel in the railway system.The thesis work was done at Icomera AB which is a company that specializes in internet connected vehicle solutions.We describe how the GPS-information is sent from the trains in the form of samples and investigate limitations and possibilities with the available information. About three million samples from 83 SJ-trains were analysed and the samples were filtered with the intent of removing erroneous information. We here found that about 30 % of the samples from the trains were unreliable.A solution for how the samples from the trains can be used to create a model of the railway system traveled by the trains is presented. We use a large set of historical samples and use cluster nodes and Hermite curves to generate a graph that represent the railway system with stations, nodes and the railway itself. A fully automatic solution is not presented since it did not fit into the time frame of the thesis; instead we created a simple tool which can be used to manually finish the model of the railway system.Furthermore, we describe how the railway system and the samples from the train can be used to register the routes the trains travel.
Indexering av skönlitteratur: En undersökning av folkbibliotek som inte köper indexerade poster från Bibliotekstjänst
The aim of this thesis is to investigate how the indexing of fiction for adults looks like in the public libraries that don?t buy indexed records for fiction from Bibliotekstjänst (BTJ). The questions that I want these libraries to answer is: - Public libraries that index fiction for adults themselves: 1. What tools do they use when indexing?, 2.
Det dialogiska klassrummet : En studie om lärares olika undervisningsmetoder
AbstractTheoryWhich education model has the ultimate learning potential? According to Olga Dysthe a varied education predominated by a dialogical nature is the best way of teaching.PurposeMy main purpose in this essay has been to investigate three different ways of education models and decide, on the basis of Dysthes? model, whether they can be classified as a monological or a dialogical model.I have also investigated if the thesis of Dysthes, ?The teachers view of knowledge determines the choice of teaching method?, is anchored in the reality.Furthermore, I have surveyed how the teachers educate concerning democracy. For example, on the basis of certain rules, are all sudents able to make the selves heard in a classroom that is characterized as dialogical? In such a classroom the teacher works whith activities to involve everyone and according to Dysthe, democracy is an attitude rather than a political system. Democracy is necessary in a classroom that is classified as dialogical.ResultThe essay is exclusively qualitative and builds upon interviews with three teachers on different upper secondary social schools witin the Gothenburg area.My results indicate that the teathers way of educating totaly differs from each others and that the thesis of Dysthe can be applied on only two out of three cases.
BIM i produktionsskedet
This thesis treats Building Information Modeling, BIM, in the production stage. Brieflydescribed BIM is virtual model of a building object where all information about theobject is gathered. All the involved operators in the construction project have access tothe model and can gather or share information about the project. There are several waysto apply BIM in the production stage. This thesis primarily deals with visualization of theobject, preparation and planning, the ability to take amounts from the model andcoordination and clash control.The basic issue was highlighted by Byggdialog AB.
Vägen ut : en kvalitativ studie om vägen ut ur en marginaliserad position
The purpose of this essay is to investigate how people can return from a marginalized position and become a part of society. Also how a model for returning from a marginalized position should be formed. The intention is to make a contribution to those in society that are helping people to return from marginalized positions. The survey is based on 5 thematic qualitative interviews on individuals that have returned from homelessness, criminality, drug abuse and prostitution. The main results of the investigation are that those who took part in it started their role exit with a turning point.
Fysiskt aktiva/inaktiva undersköterskor upplevelser av stress i arbetsmiljön - en intervjustudie.
There's a good adherence to the vaccination of children, about 98% of all two year olds are vaccinated. Despite this, there are cases of whooping cough and measles in Sweden. The purpose of the study was to describe what motivates parents to not vaccinate and reflections and attiudes about vaccinations. The study had a descriptive design with qualitative approach. Eight parents who had chosen not to follow the National Board of Health?s vaccination program or whom had decided to completely abandon, participated in the study.
Risk för bostadsägare - en analys av risken vid förändringar av ränta och elpris
Since 1996 the Swedish households have ten folded their volume of loans for own homes that is attached to a floating interest rate. Also in 1996 the Swedish electric market was deregulated. These two facts have increased the volatility in the household expenses for these two commodities. This thesis studies the risk for homeowners attached to the exposure against the electric and the credit market. The risk model used is Cost-at-Risk which is usually used by public authorities for analysing the risk involved with national debt.
Analys och kontroll av hållfasthet på grenställsarm
The thesis was done in collaboration with EAB situated in Smålandsstenar. In the initial discussion faze on doing a thesis with them there was a need to analyze and ensure the strength of an existing product, cantilever racks. This included performing FEM calculations on a model and comparing the results with physical tests.EAB has two models of cantilever racks, a light duty and a heavy duty. Within the heavy duty model series there are five product variants that differ in both size and load capacity. We will be working with the product variant with a load capacity of 1000 kg/arm which is the variant that is in the middle of the series.When we started work on the thesis we did a literature study and couldn?t find any well defined methodology that integrates both product development and computer aided design analysis.
Projektrisk : en studie av svenska bygg- och anläggningsföretag
Background: Today businesses are largely structured in projects and temporary organizations. In many companies, the ability to pursue projects is decisive for the business efficiency and competitiveness. The risk literature do not discuss identification and handling ofproject risk in building- and construction companies to a large extent, which has led us to investigate how project risk can be treated and handled in Swedish building- and construction companies. Purpose: The purpose of this thesis is to cover and describe business risk in Swedish building- and construction projects with focus on different risks and risk tools, and also to modify a model for evaluating the business risk maturity. Realization: This thesis has both traces of a case study and a cross-section study and examines eight different companies that are active in the building- and construction business.
Pricing Credit Default Index Swaptions A numerical evaluation of pricing models
This study examines the background and nature of the credit default index swaption (CDIS) and presentsrelevant methods for modelling credit risk. A CDIS is a credit derivative contract that gives the buyerright to enter into a credit default index swap (CDS index) contract at a given point in time. ACDS index, in turn, is a multi-name credit default swap (CDS). Within the eld of research, thisthesis identi es the CDIS pricing models presented by Jackson (2005), Rutkowski & Armstrong (2009)and Morini & Brigo (2011) as the most recognized and developed. These models are evaluated byreconstruction in a numerical software environment.
Distribution av sjukvårdens förbrukningsvaror en beskrivning av hur distributionssystemet kan förändras
This master thesis investigates the possibilities of using GPS-information from trains to create a model of a railway system, register the routes of the the trains and predict how the trains will travel in the railway system.The thesis work was done at Icomera AB which is a company that specializes in internet connected vehicle solutions.We describe how the GPS-information is sent from the trains in the form of samples and investigate limitations and possibilities with the available information. About three million samples from 83 SJ-trains were analysed and the samples were filtered with the intent of removing erroneous information. We here found that about 30 % of the samples from the trains were unreliable.A solution for how the samples from the trains can be used to create a model of the railway system traveled by the trains is presented. We use a large set of historical samples and use cluster nodes and Hermite curves to generate a graph that represent the railway system with stations, nodes and the railway itself. A fully automatic solution is not presented since it did not fit into the time frame of the thesis; instead we created a simple tool which can be used to manually finish the model of the railway system.Furthermore, we describe how the railway system and the samples from the train can be used to register the routes the trains travel.
Flexibel lärandemiljö: En studie av ett högskolebiblioteks lokalförändringar utifrån kunskapssyn och lärandeperspektiv
The aim of the study is to examine how different factors,such as views on how knowledge is produced and howlearning takes place, effect the way an academic librarymanages space. This is done by looking into how a specificlibrary, namely Library & Learning Resources (LLR) at theUniversity of Borås, by re-planning the building?s structure,design and functions, can support the students? differentstudying habits. The analysis is performed by using a theoreticalperspective built by a model first created by thearchitect Daniel Koch. The model is designed to look uponhow space produces meaning and knowledge.
Värdet av demand response på den svenska elmarknaden
Intelligent IT-based solutions, often called Smart Grids, are considered to be the future balancers of renewable energy sources. One area within the Smart Grid concept is called demand response, which is focused on making customers more consumption flexible by making them more active in their consumption. In this thesis the aim is to analyze a business model by investigating the income potential for a demand response solution as well as its market potential. This has been done through literature studies, interviews and development of a computational model.The use of 5000 households with flexible consumption can provide a cost reduction of 17.2% or 2.4 million SEK for a balance responsible party during an average year. If the solution is used to make strategic bids on the regulation markets the study indicates that the largest potential for revenues lies within this strategy.
Revisorernas oberoende ifrågasätts : går det att sitta på dubbla stolar, få dubbla inkomster och ändå bevara oberoendet?
The recent accounting scandals in large companies in both USA and Europe, such as Enron and Scandia, have led to a huge debate about the quality of financial reports approved by auditors who, at the same time, offer consultancy service to their audit clients. Many researchers and experts argued that there is a role conflict when an auditor offers consultancy service to audit clients. They argue that the main duty of an auditor is to verify the truthfulness of the company's financial statements. Giving consultancy service to the audit clients will impair the auditor's role to examine the company's books independently because of the economic bond between auditors and audit clients.As a result of the Enron scandal, the legislators in the USA have made restrictions to how auditors provide non-audit service to audit clients. However, the legislators in Sweden, unlike the US, did not choose to introduce such restrictions.
Ett flervariabelt feldetekteringssystem för övervakning av bärlagertemperaturen i vattenkraftturbiner
The purpose of this thesis work was to develop an automatic fault detection system for surveillance of bearing temperature in hydropower turbines. The parameters used except the bearing temperature were cooling water temperature and cooling water flow. A simple static model based on data sampled every minute was developed to estimate the bearing temperature. Then a detector for detection of change in bearing temperature based on the CUSUM-algorithm was designed. Since the amount of data was very small the developed model was too uncertain to be used in a working system.The designed fault detection system showed to work well for the available data.