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572 Uppsatser om Mathematical contents - Sida 27 av 39

Akustisk mätning av U-värde

This pre-study investigates the possibility of U-value measurements through an acoustic method. A hypothesis about an acoustic model built on acoustic theories combined with U-value theories is presented to answer the questions: ? Can U-value theory be combined with acoustic theories? ? Can the coefficient of heat be affirmed trough an acoustic measurement? The idea for this dissertation begun with a logical idea in mathematical similarity, between the coefficient of heat transmission units and sound intensity units. The U-value theory is based on assumptions such as initial resistance for inner walls and initial resistance for outer walls. The resistance in the material is interpreted through sound intensity theory. The argument is built upon mass law theory, which means if the frequency or thickness of the material layer doubles it implies an increase of sound reduction by 6 dB.

?Han har diskhandskar. Rosa.? En litteratursociologisk analys av kärlekstemat i genren chick lit, exemplet Mossvikenfruar: Chansen av Emma Hamberg.

Libraries are often associated with positive values such as democracy and equal rights. The contents of the literature on offer should therefore be of great interest to the librarian, the supplier of said literature. The topic of this Master?s thesis is the popular literary genre known as chick lit. The purpose is to investigate the love theme in Swedish chick lit, and how it relates to Anthony Giddens? theory on love in late modernity.

Matematikverkstad : -ett förhållningssätt

SammanfattningDenna uppsats har sin bakgrund i fem ord som kan ses som en kort sammanfattning kring vad matematikundervisningen bör innehålla enligt Lpo94 och kursplanen för matematik. Där står att matematik bör pratas, undersökas, upplevas, skapas och utforskas. Om dessa ord får finnas med i undervisningen så bör man kunna göra matematiken roligare och mer intressant. Att finna glädje och lust till matematiken är väldigt viktigt för att fånga barnens uppmärksamhet och rapporten Lusten att lära?med fokus på matematik diskuterar just vikten av lusten till matematik.  Baserat på vad som står skrivet kring matematikverkstäder så borde pedagoger kunna jobba i enlighet med vad Lpo94 och kursplanen i matematik förespråkar.

Folkbibliotekens förmedling av Internetresurser: En undersökning av två mångkulturella länksamlingar.

The purpose of this Masters thesis is to investigate the role of link collections in Swedish public libraries mediation of Internet resources. The study is focusing on the effects on the contents and the structure in the link collections when the target group is immigrant users. This is done through literature studies completed with an examination of two link collections containing multi-cultural and multi-lingual material and qualitative interviews with the two librarians who are in charge of the collections. The major questions raised in this study are: What function do the link collections have for the public libraries? What is the difference in working with traditional, printed material compared to the work with Internet resources? And how are the selection of Internet resources and the structure of the link collections affected when the collection is intended for immigrant users? The main results are that link collections in public libraries can give a concrete form to political guidelines.

Utveckling av en ytmonterad fördelningsmätare som underlag för individuell debitering av vattenförbrukning i fastigheter

The master thesis, conducted at Metrima AB, concerns the development of a non-intrusivedistribution meter as a basis for individual tap water billing in apartments.The project is conducted in response to the market interest in individual tap water billing inapartments as an answer to environmental concerns regarding water consumption. Due to thehigh installation cost of traditional water meters, a new method of determining waterconsumption, without having to cut water pipes, is proposed.The proposed method distributes the total water consumption for an apartment complex toindividual apartments according to distribution meters, measuring water run-time, in eachapartment. The water run-time is estimated by measuring the water pipe?s outward vibrationsand temperature changes.A test environment was established and a prototype built, using a tilt- and vibration sensor forvibration sensing and a precision temperature sensor to measure temperature changes. As bothsensors work well in the test environment, further testing was done in 3 apartments for aduration of 5 days.

Reglering av matarsystem vid höghastighetskapning

Today small metal parts are mass-produced as for example rollers in cylinder bearings. At high velocity cutting the metal is cut with a great force in a scissor-like device. Both precision and repeatability is important to be able to guarantee good quality, but from an economical point of view it is also important to keep a great manufacturing capacity. The part of the process that is most time consuming is when the metal bar, that is about to be cut, is fed to the right position. Therefore it is interesting to examine if the time used for positioning can be reduced.

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.

Klassifikation och definition av socialantropologi En jämförande studie ur ett hermeneutiskt perspektiv

The purpose of this thesis is to study the relationship between the definition and bibliographical classification of a certain academic subject; social anthropology. The theoretical framework consists of views held in Information Science regarding the definition and classification of subjects. The methodological onset is based on hermeneutical concepts that allow an extended analysis of abstract structures of thought. This analysis comprises of two parts; a descriptive analysis and a comparative analysis. The result of the descriptive analysis, whose aim is to describe the academic subject social anthropology, shows that this is not easy to define, instead it is nowadays almost the same as cultural anthropology.

Boktips från biblioteket: En kvalitativ textanalys utifrån Boktips.net

In this Master's Thesis a rhetorical analysis is applied to reading suggestions in the database Boktips.net. Boktips.net utilize the Internet for readers advisory by offering public libraries in Sweden to use and participate to its contents. The aim is to examine how library staff writes about literature in Boktips.net. The empirical material is delimited to reading suggestions on fiction for adults. Areas in focus of the analysis are rhetorical context, disposition, style and components from the point of view of content: summary, evaluation on portrayal of characters and setting, narrative, language use, genre and themes, entertainment, insights and external information.

Modellering och simulering av det evaporativa bränslesystemet i en personbil

This thesis work has been performed at the department of diagnosis and dependability at Volvo Car Company, Torslanda. The background of this project is based on interest in ascertaining how different factors possibly can affect a diagnosis method, which has been developed to find leaks in the fuel tank and evaporation system. According to the OBD II requirements leaks with an orifice diameter larger or equal to 0,5 mm, must be detected. The idea of the diagnosis method is to create an over pressure in the system with an air-pump. The current through the pump is measured and correlates to the power consumed by the pump.

Sticklingsetablering av Sedum spp. för gröna tak : biokol som organiskt material i substrat

The popularity of vegetated, or green roofs, has grown over the past years due to their potential function of maintaining urban environment quality. The aim of this study was to investigate if substrates with different organic material, peat and charcoal, with two contents (3 or 6 weight%) influenced the growth of the cuttings during the first critical period of the establishment. Biochar is used as amendment to agricultural soils and has, theoretically, many of the properties suitable as organic content in green roof-substrates. Peat is one of the materials that is commercially used in green roof industry. The substrate has been treated with different amounts of water.

Ställtidsreduktion på förpackningslina

This report discusses the development of lessons based on laborations for middle and high school.The purpose of the project was to research the possibility to affect students' attitude towards physicsthrough well-planned stimulating lessons. The lessons were based on the Light and Lasers OutreachKit, a teaching package made by the organisation Laser Classroom, and have been adapted for physicsin middle and high school. The lessons were developed on a pedagogical and didactical ground andwere improved with surveys and peer and self assessment. The lessons were based on laser light and itsproperties. One lesson covered the topic of single-slit diffraction, while the other treated geometricaloptics.

Kromförångning i fastoxidbränsleceller

This report discusses the development of lessons based on laborations for middle and high school.The purpose of the project was to research the possibility to affect students' attitude towards physicsthrough well-planned stimulating lessons. The lessons were based on the Light and Lasers OutreachKit, a teaching package made by the organisation Laser Classroom, and have been adapted for physicsin middle and high school. The lessons were developed on a pedagogical and didactical ground andwere improved with surveys and peer and self assessment. The lessons were based on laser light and itsproperties. One lesson covered the topic of single-slit diffraction, while the other treated geometricaloptics.

Vår nådiga vilja och befallning : Kungl. Maj:ts brev till landshövdingen på Gotland 1735

This is a study of the letters from His Majesty the King to the county governor of Gotland in 1735. In the Age of Liberty the king had limited power. Royal decisions were made with the Council of the Realm where the King only had the advantage of having two votes and a casting vote. Furthermore, the Council had to act according to the decisions of the Estates of Parliament, if at least three of the four Estates were in agreement. The duties of the county governor were set out in a detailed instruction of which the most recent version was issued in 1734.

En analys av lärarhandledningar inom biologiämnet och Lpo 94 : en fråga om begränsad undervisningsvariation?

 During our education time, we have heard on several occasions how the high changing rate in the society also influences the education area. That changing process mainly originates from the transform that a school underwent, i.e. the decentralization meaning a delegation of responsibility from a national to local government and the particular school. The main idea that started a changing process goes under the slogan ?a school for everyone?.

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