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11022 Uppsatser om Accelerated Failure Time model - Sida 58 av 735
3D-byggnadsmodeller utifrån takkonstruktioner : Lagring, hantering och bearbetning
A growing number of cities and municipalities in Sweden begin to work with city models in 3D. For the most part the models are used for visualizations of ongoing planning processes, but also for the analysis of noise, shadow studies and environmental disaster simulations.Gothenburg continues to develop the use of 3D maps in municipal operations and is demanding a way to create building elements (walls), which generates in 3D buildings, from roof constructions that are mapped from the primary map. A method has been investigated in the present study. The results are then presented as a 3D model of buildings, along with a terrain map that will facilitate the localization of the area. The created 3D buildings are then compared with roof-data from the primary map to see how well they harmonize with each other.
Simulering av COD-fraktioner i en aktivslamanläggning vid en sulfatmassafabrik
This thesis work was made for Södra Cell Mörrums bruk in Blekinge. The purpose of the work was to develop a computer model in the simulation program Extend for the removal and balance of organic oxygen consuming substances, measured as COD (Chemical Oxygen Demand), in the new biological treatment plant in the mill. The plant produces two different pulp products, TCF- (Totally Chlorine Free) pulp and ECF- (Elementary Chlorine Free) pulp, for sale. The different bleaching procedures affect the characteristic of the wastewater and thus the effectiveness of the biological treatment plant.In the model that was developed the COD in the wastewater was divided into five different COD-fractions: soluble easily degradable (SS), soluble hardly degradable (SR), soluble inert (SI), particulate inert (XI) and particulate biomass (XB). To create the model FlowMac? was used as a base.
Metallersättning inom byggbranschen
In this paper the possibilities to replace metal with plastic in products for the building industry were looked into. The first part was a market examination where several suitable products were found. After evaluation the door latch for in-house doors was selected to be re-designed to better suit the properties of plastic.New types of mechanisms were designed with different functions that use the benefits of plastic materials. Models of these mechanisms were developed to evaluate their function. The components in the different mechanisms were adapted for manufacturing with injection moulding.To confirm that the plastic material could handle the appearing stresses calculations on the most vulnerable parts were carried out.
Skolbiblioteket och progressionen inom grundskolans användarundervisning
The purpose of this essay is to examine progression in user education atprimary and secondary school levels, specifically the role played byschool libraries, librarians and strategy documents in securingeducational progression. Progression is examined in the user educationprovided by the five schools, part of the same municipal schoolmanagement area which share the same strategy plan. The area, NorraFäladen, was awarded School Library of the Year in 2011 for its work,making it particularly interesting for this essay's purpose. The studycombines interviews with the area's three school librarians, who dividetheir time between the five schools, with an analysis of the strategydocuments that regulate user education within Norra Fäladen. Theanalytical framework is based on: AASL's model of progression in usereducation (Standards for the 21st-century learner); Ekström's model forsuccessful and active strategy documents; Kuhlthau's theory of thelibrarian's role in the information search process; and Limberg'staxonomy of the role of the school library.The study shows how a number of concurrent factors and prerequisitesinfluence how goals for progression in user education are met.
Skönlitteratur på skärm: En explorativ undersökning om e-boken och dess konsekvenser för litteratursamhället
This thesis should be regarded as an integrated research synthesis. The purpose has been to analyse how the literary sociologist Lars Furulands model the literary process correlates in relation to todays book market for fiction. The central problem has been: In what different ways can some of the main actors featuring in Furulands model of the literary process use, produce or provide copyright protected works of fiction which are electronically distributed? Three questions have been considered to penetrate this problem: In what different ways can to judge from some projects which have been carried through at common public libraries electronic works of fiction be provided to their presumed readers? What reasons could there be as it appears in a number of texts that four Swedish authors have chosen to disseminate their works of fiction by the aid of the Internet? Which main functions may, according to current research, be supported by electronic media in connection with editing and retail of fiction? During this study a picture of two quite disconnected processes of publication has materialized. These processes seem to proceed parallelly to each other, without any close contact, in a traditional respectively an electronic circuit.
The role and genetic control of non-coding RNAs in bacterial infection
Promoters are genetic elements that facilitate the transcription of a gene and they have been found in front of non-coding RNA (ncRNA) genes in different organ-isms, e.g. the model plant Arabidopsis thaliana. A similar element, DUSE, has been found in front of ncRNAs in the social amoeba Dictyostelium discoideum and a part of this project has been to analyze the function of this putative promoter element through cloning and expression studies. A construct to analyze the func-tion of DUSE was successfully designed and introduced into D. discoideum but full expression studies were not finished because of shortage of time.
Styr uppfattningen om dig själv : En studie i hur chefredaktörer för modemagasin arbetar med sina personliga varumäkesidentiteter
The theory chapter is based on a model about brand identity, ?Brand Identity Prism? (Kapferer, 2008, s.183). This model contains six elements which we have supplemented with theories about personal branding. This because the focus and theory on a person's brand identity is almost non-existent. The purpose of the study is therefore to examine how editors at fashion magazines are working with their brand identity in the personal brand and thereby create an understanding of the identity function.
Numerisk modell för global transport av spårämnen i atmosfären
The aim of this project was to develop a numerical model simulating the global transport of air pollution. The model currently used by SMHI, the Swedish Meteorological and Hydrological Institute, was intended to perform such simulations at regional scales. However, the usage of a grid based on longitudes and latitudes makes this model work poorly in global simulations. The problem with this grid is that the nodes are concentrated near the North and South Poles. Due to this characteristic, the Courant, Friedrich and Lewy-condition for numerical stability puts a sharp bound on the timestep length.
Underlag för bedömning av energibrunnar inom vattenskyddsområde
Denna rapport beskriver arbetet med utvecklingen av en ny modell för kaplanturbiner. Utvecklingen bygger på två kopplade differentialekvationer som under arbetets gång anpassats och implementerats i turbinmodellen.Modellen beskriver hur vattenflöde och turbinmoment påverkas av avvikelsen från den optimala kombineringskurvan för vinklarna på turbinens ledskena och löphjul, och är anpassad för ett referensaggregat med tillgängliga provdata. Även övriga enheter i vattenkraftaggregatet modelleras och sätts samman med frekvensregulator och elnät för att simulera aggregatets reglerstabilitet i önätsdrift.Verifieringen av turbinmodellen sker genom försök att återskapa de befintliga verkningsgradskurvorna med hjälp av modellen. Resultatet visar en god följning av de verkliga kurvformerna, dock med något lägre maximal verkningsgrad.Verifieringen av önätmodellen sker genom att prova stabiliteten i nätfrekvens och turbineffekt vid stegpålastningar. Resultatet ger en stabilare reglerstabilitet än i verkligheten, men uppfyller ändå förväntningarna på en fungerande modell.This report describes the development of a new kaplan turbine model.
Prediktering av fartygsbränsleförbrukning i varierandesjötillstånd
During the 2000s, the ship owners have become more and more concerned thattheir ships save fuel. Several projects have been undertaken to exploit the resourcesavailable on board today?s vessels to reduce fuel consumption. As a stepin this the Swedish Meteorological and Hydrological Institute (SMHI) today offera Weather Routing service to ships. By planning your route more effectivelymuch fuel can be saved.This thesis has been about developing a fuel prediction program (FPP) forhow much fuel a ship consumes in different sea conditions.
Fashionably fit for the future? ? A demonstrative study unravelling the concept of scenario planning
Purpose: The purpose of this thesis is to clarify and evaluate the concept of scenario planning.Methodology: Our research methodology has a qualitative approach and uses deductive reasoning. The theoretical field of strategy formulation has been reviewed and in specific the concept scenario planning was unravelled and mapped. Thereafter, our model was tested in a case study where the empirical data was collected through personal interviews. Theoretical field: Literature and articles from the strategic management field have been reviewed with a focus on strategy formulation, scenario planning and Williamson?s theory for the creation of a portfolio for strategic options.Empirical base: Personal interviews and secondary sources such as financial reports, articles mainly from industry media and articles found in the databases ELIN and Affärsdata.Analysis: The analysis work constitutes the testing of our model for scenario planning, integrated into Williamson?s portfolio of strategic options for the future.Result: The work has resulted in a clarified model of scenario planning with links to strategic management schools.
Varför sviktar elevers intresse för matematiki de högre åldrarna? : Vilka faktorer ger elever motivationoch lust att lära matematik?
Drinking water is produced from raw water and is either from groundwater or surface water. This thesis aims to find out if the cleaning process of raw water is sufficiently effective. This is important because consumers are otherwise at risk of waterborne infection caused by pathogens. There are three groups of pathogens; bacteria, virus and parasite. These have different characteristics which mean that they require different water treatment to be separated.
Manuell arytmitolkning och defibrillering prehospitalt för att minska avbrott i bröstkompressioner
Abstract Background Todays guidelines for advanced CPR emphasize chest compressions with good quality and early defibrillation. Prehospital CPR performed by ambulance crew, an automated external defibrillator (AED) is used. The AED analyzes the heart rhythm and the performer is following the advice to chock the heart or not, given by the AED. During on-going CPR there are sequences when no chest compression is performed known as hands-off time. Hands-off time includes the time for the AED to analyze the heart rhythm and the time when advice is given to the crew.
Corpus Technologica : En religionshistorisk analys av Robert Anton Wilsons version av The Eight Circuit Model of Consciousness i ljuset av den västerländska esoterismen
This is a thesis about The Eight Circuit Model, a modern mind map developed for the purpose of illumination and enlighenment by Dr. Timothy Leary in the 1970s. Later, authors such as Robert Anton Wilson and Antero Alli elaborated upon the idea to make it more wholesome and compatible with other ideas expressing the same basic principle. In short, it is an intellectual abstraction of the evolution of consciousness through a series of eight stages, which Leary called Circuits. By looking at the brain as an evolving bio-computer, with thoughts working as software, upgrading itself through neurological imprints, Learys created a Hero's Journey for the modern age.The thesis tries to analyze this idea, as it is presented in Robert Anton Wilsons Prometheus Rising, through the lens of the discourse category ?Western Esoterism.? A hard-to-define subject but described as ?the dialectic of the hidden and the revealed in the field of religion.?.
På spaning efter den svenska modellen : Bortom strid och samförstånd
The aim of this thesis is to examine the Swedish model with attention to core values over time, as well as, explain recent changes. It examines changes of the social insurance system, with focus on political reforms in the unemployment insurance, health insurance and family policy, during the last two decades. The thesis is empirical but although a discourse amount political theories and normative conceptions.Conclusions are that the normative basis in the Swedish model contains general equally and uni-versally designed rights and consensus on growth and development as well as a strict focus on an employment oriented society. Important values have also been dialogue between actors as well as accountability, even if these facts appear to have declined in recent years.Relating to three leading theories in political philosophy - utilitarianism, Rawlsian communitarian-ism - explores the directions in later year political reforms. The results show that later years changes seem to go in relative strongly utilitarian direction.