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8863 Uppsatser om Multivariate analysis - Sida 3 av 591
Programmering av mikrokontroller för styrning av komponenter i ett biokemiskt analysinstrument
The Uppsala based company Q-linea develops procedures, instruments and systems for protein and nucleic acid analysis. The components in such an instrument are controlled by microcontrollers. Microcontrollers are computers in one singular chip that can be used in a wide range of applications such as cars, toys or in this case an analysis instrument. When developing a new instrument for biochemical analysis, Q-linea needed new software for controlling and communicating between the components in the instrument. The process of developing this software is the subject of this thesis.The project included research of microcontrollers and the components in the instrument.
Utformning av mjukvarusensorer för avloppsvatten med multivariata analysmetoder
Varje studie av en verklig process eller ett verkligt system är baserat på mätdata. Förr var den tillgängliga datamängden vid undersökningar ytterst begränsad, men med dagens teknik är mätdata betydligt mer lättillgängligt. Från att tidigare enbart haft få och ofta osammanhängande mätningar för någon enstaka variabel, till att ha många och så gott som kontinuerliga mätningar på ett större antal variabler. Detta förändrar möjligheterna att förstå och beskriva processer avsevärt.Multivariat analys används ofta när stora datamängder med många variabler utvärderas. I det här projektet har de multivariata analysmetoderna PCA (principalkomponentanalys) och PLS (partial least squares projection to latent structures) använts på data över avloppsvatten insamlat på Hammarby Sjöstadsverk.På reningsverken ställs idag allt hårdare krav från samhället för att de ska minska sin miljöpåverkan.
Analys av en metod för att extrahera generella regler från multipla nät
Rapporten som följer är en analys av en metod som genererar regler från neurala nätverk. Metoden heter VI-Analysis (Validity Interval Analysis) och är framtagen av Sebastian B. Thrun [Thrun]. VI-Analysis arbetar på det sättet att det neurala nätverket ses som en svart låda där endast de inputvärden och outputvärden som finns i nätverket används som underlag när regler ska genereras. Dessa inputvärden och outputvärden kommer sedan att få tillåtna intervall av VI-Analysis.
Långtidsfrisk eller arbetsglädje - vad speglar arbetsrelaterad hälsa?
The work related illness has increased and instead of focusing on what?s causing it more and more efforts are put on trying to find the health factors within and outside the work environment. During the past years the term ?long-term health? has arisen; instead of focusing on the number of employees on the sick-list, the focus should be put on the number of employees that has a record of long-term health within an organization, i.e. health-presence.
Revisionsutskott i svenska aktiebolag: En statistisk analys
The recent development in several countries? legislation and best practice recommendations in relation to corporate governance in general and audit committees in particular have affected Swedish listed corporations in the form of the Swedish Corporate Governance Code and the coming EU-directive. This paper aims to discover what factors affected Swedish listed companies to form audit committees when this was entirely voluntary. We collected data from the annual reports of 121 Swedish listed companies and formed eleven hypotheses as to what factors we believed affected the voluntary formation of audit committees based on Agency Theory, economies of scale and circumstances specific to the Swedish environment. We then analyzed the data through the use of a multivariate logistic regression model.
Om ekonomiskt bistånd och kriminalitet - En studie om socialt stöd och dess effekter på misshandel och stöld
Since criminality started to rise steeply in most western welfare states following the second world war the relationship between welfare support and criminality has been debated. For a period of time thought to be an effective preventive measure against crime welfare support has since from time to time come to be seen by some as ineffective and in some cases even as a contributing factor to the rise in crime. It remains a contested issue as new theories, such as social support theory, which is employed here, attempt to contribute to the understanding of what effects general welfare has on overall crime levels. As a connection which is relatively well-researched in the USA, altough still not yet fully understood, this study strives toward a better understanding by testing the relationship in a swedish context. The relationship might not function in the same way considering that the US is a fundamentally different welfare-regime than Sweden, liberal and social-democratic respectively.Untangling the relationship is attempted by employing a multivariate regressionanalysis on a crosssectional dataset consisting of data from 2012 covering 247 of Swedens total of 290 municipalities.
Utvärdering av energiberäkningsprogram : Att användas i tidigt planeringsstadium för byggnader
The regulations for energy consumption are consistently getting more and morestrict. This leads to a higher customer demand for energy analysis early in the buildingdesign process. Many building planners and architects use powerful modeling softwareto visualize their projects. These digital models contain sufficient information aboutthe building?s physical characteristics for reliable energy analysis.
Hav och Strand : stenteknologi och marin anpassning på Gotland under Senboreal/Tidigatlantisk tid
The essay circulates around the technological analysis of flint material from four localities around the Baltic Sea basin. The analysis was created to investigate the question of where the first Gotlandic settlers originated from and to give clues about the colonization process. The investigated material was collected during the fall of 2011 and a correspondence analysis is used to analyze the collected material. The purpose of using a correspondence analysis is to test the method as a tool for investigating Mesolithic flint technologies. The essay also discusses marine hunter-gatherers, their economy and how their archeological remains differ from terrestrial hunter-gatherers..
Hur doftar parfymreklamen? : En Studie i hur man kommunicerar doft genom bild i parfymreklamen
With the help of image analysis and scent theory, we have made an analysis that explains how the perfume smells in advertising. There are many different factors that play a role in our perception of smell by image. We have found that using the connotations we can get a sense of the scent. What helps us along the way, the colors, the women and the environment. From this one different conclusions are mad and we create a scent sensation..
I BRÄNNPUNKTEN: Samhällsekonomisk utvärdering av arbetsmarknadsåtgärder. Illustrerad med hjälp av Brännpunkt i Kävlinge 2002-2005
The purpose of this essay is to examine cost-benefit-analysis as a method of evaluation of labour market policy. To illustrate the possibilities and difficulties of the method chapter four contains a partial cost-benefit-analysis of the results of a labour market project in Kävlinge. The questions this essay strives to answer are the following: What possibilities and difficulties do cost-benefit-analyses entail? How would one conduct a cost-benefit-analysis of the project in Kävlinge?The method used in this essay is mainly a literature study of cost-benefit-analysis of labour market programs. The labour market project Brännpunkt is used as an example in a partial cost-benefit-analysis.The applied cost-benefit-analysis of the Brännpunkt project in Kävlinge shows that it is possible to calculate the profit for the society as a whole, given that the necessary information is obtainable.
Datorsystem för kvalitetskontroll och temperaturövervakning med värmekamerateknik
The work was carried out on Termisk Systemteknisk?s office in Linköping. The aim was to create a computer system with infrared camera technology for quality control and temperature monitoring of manufacturing processes in industry. The system should be configurable such that it can be used on several different issues, including those where the real-time analysis of camera images is required.The developed system is based on an existing framework, Panola, to deal with measurement results and images in a database. The framework is built for the system continually check for new data , and the task was to create a foundation upon which to build systems that use the framework, but fully or partially utilize direct calls .
Framtagning av analysmetodik för uppslutning av kemiska produkter
The purpose of this thesis was to develop and optimize a method of analysis for combustion of organic chemical products, followed by an ion chromatographic quantitative analysis. This was to be achieved with the decomposition equipment IKA AOD 1. The aim was to receive a precise and repeatable method that would be able to be applied to the process of qualification and technical marking of chemical products at the company, OKG AB in Oskarshamn. A complete instruction for the decomposition equipment and the method of analysis was written. A number of parameters were chosen from the general method of the combustion equipment, which then was tested parallel with a simultaneous development of an appropriate ion chromatographic method.
Analysmodellen ? verktyget för revisorers oberoende
Aim: The analysis model was introduced after several audit-scandals in order to enhance the confidence in the auditors? independence. Our purpose with this essay is to find out if the auditors experience that the stakeholders? confidence in their review of the financial information has increased as a result of the analysis model. We also strive to describe the function of the analysis model in order to give the reader a deeper understanding in this subject.Method: The scientific approch we have used in this essay is a qualitative survey method, in order to find out the auditors opinion and attitude regarding the analysis model and whether the stakeholders? confidence in the financial information has increased as a result of its introduction.
Vilken påverkan har kvinnlig politisk representation för utfallet av klimatpolitiken? En studie av hur andelen kvinnliga ledamöter påverkar svenska kommuners utsläpp av växthusgaser
During recent decades several studies have investigated how different social roles and socialization processes between women and men affects our attitudes, values and priorities to environmental problems. Many empirical studies among the general public, indicates that women tend to show a greater environmental concern than men, because of women?s different health- safety- and risk perception. Even though the results are well established among the general public, when investigating if elected women in public offices tend to express a higher environmental concern, than do men, the results are not that clear. By using a dataset covering all the 290 municipalities in Sweden, this study aims to investigate if there is any correlation between the amount of female representatives in the municipality and the amount of emissions of CO2e per capita.
En upplysning om sexualitet : diskursanalys av det svenska samhällets syn på ungdomars sexualitet
The purpose of this essay is, using discourse analysis, to define how the Swedish society sees sexuality and how this is conveyed to young people. The questions at issue are; How is the term sexuality defined and delimited? How are the young people described in relation to sexuality? Are young people ascribed to different needs and qualities in relation to sexuality depending on their gender?There is previously a lot of research with great multitude about the sexuality of the youth. The research methods vary but text analysis within the subject area is unusual. The material used in this discourse analysis have been published by normative public institutions.