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405 Uppsatser om Mathematical modeling - Sida 19 av 27
Utvecklingen från traditionell ekonomistyrning till verksamhetsstyrning : En studie inom ekonomistyrning
This thesis primarily includes a study on whether companies can develop a mathematical activity that supports students' motivation in mathematics. The work was done together with Midroc Electro, a company that pays attention to the difficulty of recruiting and therefore was interested in investigating how the business world would be able to contribute.The thesis can be divided into three stages. The first part comprised by a exploration into research on student motivation regarding mathematics as well as numerous interviews with engineers to see how the research findings did fit with Midroc Electros reality. In these studies it became clear that the student who aims for a profession whose education or work requires math belongs to the group of students who primarily manage their studies in mathematics, that is, those that have the greatest motivation to work hard and complete their studies.Research information and interviews were compared and resulted in the thesis second part, Midroc Challenge. An activity where students primarily came to learn about the engineering profession and secondly how mathematics can be used in the engineering profession.
Energianalys av Svensk Växtkrafts biogasanläggning i Västerås
Svensk Växtkraft is the owner of the biogas plant in Västerås. The company is planning to increase
their treatment capacity at their biogas plant. In connection to this work it is also possible to make
some energy saving changes to the biogas plant. The objective of this study was therefore to make
an electricity and heat survey of the biogas plant, a detailed study of the heat consumption in the
sanitation step and also a comparison of energy consumption with the present sanitation method
and an alternative strategy where the waste is treated in 55 °C during 10 hours (the current method
is heating to 70 °C during 1 hour).
The energy survey was conducted in close collaboration with staff at the biogas plant. The current
during normal operation was measured, power was calculated and multiplied by the time of usage to
obtain the energy consumed.
Matematisk förmåga
Syftet med undersökningen är att ta reda på vilka matematiska förmågor enligt Krutetskiis teori som synliggörs hos elever i skolår 5 som arbetar gruppvis med problemlösning. Dessutom undersöktes vad läraren uppmärksammar som matematisk förmåga och hur läraren organiserar sin undervisning för att utveckla matematisk förmåga. Krutetskii (1976) har definierat de matematiska förmågorna genom en studie som gjordes 1955-1966. Dessa tolkades och analyserades från en översatt version av hans verk. Med inspelat material från två observationer synliggjordes flera matematiska förmågor hos eleverna.
Fo?rba?ttringsfo?rslag pa? automatisering av bagagehantering
This report will outline a proposal for the improvement of the baggage sorting facility at Arlanda airport. Swedavia is a state owned company group that operates, owns and develops airports in Sweden. One of their main roles is to create accessibility needed to facilitate and streamline the work at the airport.Swedavia is constantly working to develop new solutions and enhancements that will help to standardize and automate the work at airports without major impact on climate and above all adapt these solutions to work.The project has been aimed to identify and isolate the problem at the check-in counter, investigate the possibility of setting a speed control on the DC motor driving the luggage conveyer belt at the check-in desk so that the luggage does not lose tracking already there, as well as evaluate the new sorting systems planned to be introduce in the upcoming refurbishment of the sorting area.To determine the parameters that are used to regulate the speed of the baggage conveyor belt, information about the inputs and outputs that participated in the process was gathered. Information was collected both practically and theoretically. Process was followed and monitored by the supervisor of the company, and a theoretical study was done separately on my own.
Modeling Determinants of First-Day Returns from IPOs
The primary purpose of this paper is to find the determinants of first-day returns on the Stockholm Stock Exchange. Our research will cover the 1996 ? 2004 periods. Our secondary purpose is intended to find a profitable trading strategy with regard to future IPOs on the Stockholm Stock Exchange. By using regression analysis, focusing on company specific factors and the IPO process, we hope to find a function exhibiting statistical significance, determining future first-day returns from which construction of a profitable trading strategy will be possible.
Textinnehållets betydelse för läsförståelsen : En komparativ studie av flickor och pojkar i åk 7
Research reports as PISA and PIRLS show that reading comprehension among Swedish students have deteriorated in recent years and that girls have better reading comprehension than boys. The basis for this study is Maj-Gun Johansson's reading comprehension test done during the four years between the years 2005-2008 in the seventh grade in a municipality in Sweden. The main purpose of this study is to examine reading literacy in terms of the influence of content and form of texts viewed from a gender perspective. The study is divided into two parts. The first part is a survey on local reading comprehension compared with results from a similar national text.
Matte på lätt svenska är svårt. En studie om andraspråkselever och matematiska textuppgifter
ABSTRAKT
Cremona, Eva och Jägerdén, Calle (2009) Matte på lätt svenska är svårt - en studie om andraspråkselever och matematiska textuppgifter. Maths in simple Swedish is difficult, A study of second-language students and textual mathematical exercises.
Skolutveckling och ledarskap, Specialpedagogisk påbyggnadsutbildning, Lärarutbildningen, Malmö högskola
Syftet med studien var att undersöka vilken betydelse den språkliga formuleringen har för andraspråkselevers resultat i matematik.
I examensarbetet redovisas hur dagens forskning ser på andraspråkselevers situation och vil-ka hinder som kan finnas för att dessa ska nå framgång i skolan. Hur skolornas organisation bidrar till studieresultaten samt betydelsen av modersmålsundervisning tas också upp. Studi-en genomfördes i fyra kommuner och eleverna som deltog gick på IVIK - Individuella pro-grammets introduktionskurser för invandrare. Efter en förstudie, där hemspråkslärare och elever intervjuades, genomfördes en kvantitativ enkätundersökning.
Beräkningsverktyg för plattformar till seriekompenseringsanläggningar
ABB is one of the world?s leading engineering companies in power and automation technologiesand their solutions improve performance while lowering environmental impacts for energycompanies and industries. ABB FACTS designs equipment and plants for series and phasecompensation.This thesis has been performed at ABB FACTS on the Mechanical Design (DM) department inVästerås, Sweden. The purpose of the thesis was to develop and design calculations andsimulation tools for ABB FACTS?s standard series capacitor platforms.
Entrébänk för Bonum seniorboenden
The following report comprises my bachelor´s thesis in Industrial design, 30 hp. It is executed in collaboration with Bonum senior housing, who has been the client and assignment- maker of this project.The goal was to design a bench for their entrances, which could represent not only the needs of the target group but also Bonum as a trademark. The work is done with great care for both human kind and the environment, with sustainability as beacon.The design process has been followed.Initially, you will find the definition of a bench for entrances, the framework including inclusive as well as sustainable design, a function- and market analysis followed by the inspiration part of the project. Getting to know the target group and their specific needs has been essential for this work.Investigations about what senior house living and senior products are and what the target group thinks and feels, has been done. As a result, two ?personas? has been developed.With the help of a purposely chosen group of people, surveys and ergonomic studies has been executed, as well as prototype-testing.The fact-finding has formed the stable and unavoidable foundation of this project, which later on gets more creative and idea based.
Dyskalkyli : En intervjustudie med föräldrar till ungdomarmed specifik räknesvårighet
Dyskalkyli, eller specifik räknesvårighet, är en specifik inlärningsstörning som innebärstora svårigheter att handskas med siffror. Detta är en kvalitativ intervjustudie medföräldrar till ungdomar med dyskalkyli, där frågor kring skolgång, insatser och känslorkring diagnosen samt relationen mellan förälder och ungdom berörs. Åtta föräldrar, allamödrar till ungdomar med dyskalkyli som är mellan 12 och 19 år intervjuades.Analysen som gjordes är en så kallad tematisk analys. De åtta teman som studienresulterade i är: Från upptäckt till utredning, Hur påverkar diagnosen?, Livet utanförskolan, Skolans hantering av svårigheter och dyskalkyli, Föräldrars insatser, Relationentill skolan, Vilka insatser önskas? och Hur dyskalkylin påverkar idag och framtiden.Föräldrar upplevde skolgången som en jobbig tid för både dem och deras barn och imånga fall har kommunikationen mellan skola och hem brustit.
Stolpverksmallar: Om hj?lpmedel f?r ?verf?ring av fasta m?tt och former
The thesis has investigated the use of templates in timber framing, a field where there has previously been a lack of comprehensive and clear information. The main goal was to map and describe the various types of templates, their appearance, usage, and function, in order to make this traditional craft more accessible to both professional craftsmen and DIY enthusiasts. The project also aims to contribute to the preservation of traditional building crafts, in alignment with UNESCO's Convention for the Safeguarding of Intangible Cultural Heritage. The methodology used in this study was a literature review, where relevant templates were gathered and analyzed. The templates were then categorized using a system developed by the author, which helped simplify the understanding of the templates functions and uses.
Matematik och ingenjören : Utveckling av en aktivitet för att öka elevers motivation för matematik
This thesis primarily includes a study on whether companies can develop a mathematical activity that supports students' motivation in mathematics. The work was done together with Midroc Electro, a company that pays attention to the difficulty of recruiting and therefore was interested in investigating how the business world would be able to contribute.The thesis can be divided into three stages. The first part comprised by a exploration into research on student motivation regarding mathematics as well as numerous interviews with engineers to see how the research findings did fit with Midroc Electros reality. In these studies it became clear that the student who aims for a profession whose education or work requires math belongs to the group of students who primarily manage their studies in mathematics, that is, those that have the greatest motivation to work hard and complete their studies.Research information and interviews were compared and resulted in the thesis second part, Midroc Challenge. An activity where students primarily came to learn about the engineering profession and secondly how mathematics can be used in the engineering profession.
Arbetskravsanalyser av arbetsuppgifter i Hälsans trädgård i Linköping utifrån The Revised Handbook for Analyzing Jobs (RHAJ)
Hälsans Trädgård is a project which is going to start in Gamla Linköping, Sweden. The authors were commissioned by Arbetslivsresurs, a company working with work rehabilitation, to select, define and make job analyses on five work tasks at Hälsans Trädgård in Gamla Linköping. A job analysis means an analysis of the demands the job make of the individual. The job analysis used in this study is called The Revised Handbook for Analyzing Jobs (RHAJ) and is from the US Department of Labor (DOL). As RHAJ is an American instrument, the authors produced a form where the concepts are translated into Swedish to make the analysis easier.
Parametriserad 3D-modell av cyklon : Parametrisering av en 3D-modell av ett cyklonfilter i SolidWorks för snabb framtagning av nya konstruktioner till Outotec Skellefteå
This bachelor thesis project has been executed at Outotec Sweden AB in Skellefteå. Outotecs main business focus is selling mineral and metal processing technologies. A rest product from the metal process is particle-polluted gas and cyclone designs are today the most commonly used abatement device for particle control. A cyclone provides a simple design with high efficiency particle percolation by using air streams.The purpose of this work is to reduce the time it takes create new cyclone designs in Outotecs projects. An extensive construction work is needed for every new cyclone order due to new designs.
Undersökningsmetodik för klorerade lösningsmedel i marken
Chlorinated solvent are volatile organic substances that can be harmful for humans and for the environment. Examples of common chlorinated solvents are perchloroethene, PCE, and trichloroethene, TCE. Chlorinated solvents appear as contaminants in soils primarily where they have been used as washing fluids in dry-cleaning facilities or as degreasers in metal industries. Chlorinated solvents are DNAPLs (dense non-aqueous phase liquids), which means that they are not easily dissolved in water and that they sink to the bottom of the aquifer. Adsorption to soils is low so chlorinated solvents are mobile in soils.