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1464 Uppsatser om Waste materials - Sida 49 av 98

Gaspotentialen i en deponi, idag och i en framtid :

Deposited waste material degrades within a short period in anaerobic environments. The methane gas that is formed provides a harmful contribute to the greenhouse effect, 23 times larger impact than carbon dioxide. It is therefore desirable to minimize the emissions of methane gas from landfills. This may be achieved by drain the landfill of gas. In this thesis the amount of produced methane gas at the landfill at Örebro has been calculated. Estimations have also been made of the amount of methane gas that might be produced in the landfill in the future.

Kartläggning och effektivisering av ljuddämparflöde

In 2013 a new emission standard for heavy trucks was introduced and hence a number of new parts was brought in to Scania CV AB. This created a need for modifications in the silencers flow. The flow is highly complex involving several suppliers, call off methods and different models of silencers. The aim for this project was to improve the existing silencers flow. The flow, from supplier to assembling, has therefore been mapped.

E-böcker och bibliotek. En diskussion kring den digitala beståndsutvecklingens möte med en gryende e-boksmarknad

In Scandinavia the general idea of the Bronze Age society is that it was organised as chiefdoms. The model for what they looked like is taken from the anthropological studies of the Polynesian chiefdoms. The aim of my study is to investigate a Scandinavian Bronze Age feature, known as cairns mainly containing fire-cracked stone. This is compared with how people in different Polynesian chiefdoms, looked at similar remain. This is done to get a background for new ways of interpretation of such remains.

Ugnet - Provugnsstyrning med LabVIEW

This report contains a programming improvement work in a LabVIEW? fire testing furnace control system for SP Fire Technology in Borås. Here materials and products behaviour are tested and evaluated, being exposed to fire. For this task, UGNET is being used for control and surveillance of the testing furnace system. System hardware has been updated gradually through the years, while the software has been neglected.

Att konstruera en kontinent : Om den Europeiska Sociala Rörelsen och enmycket annorlunda Europatanke

The thesis of this essay is how literary texts are selected in the teaching of Swedish in upper secondary school, and how teachers reflect upon gender in these selections. To answer the thesis question three methods have been used. Firstly interviews were held with five teachers of Swedish, which have been the primary source for the essay. In addition to the interviews, I have examined two literary anthologies used as teaching aid in the teaching of Swedish and lastly I analyzed the literature and authors that the teachers explicitly express that they use in their tutoring. The secondary sources of this thesis contain research on selections of fictional texts, literary canon and students? re-production of gender.

Vad döljer sig mellan pärmarna? : En läromedelsanalys av två nybörjarskolor för piano

Denna studies syfte har varit att undersöka pedagogiska och didaktiska aspekter i pianoskolor för nybörjare. Detta har gjorts genom en läromedelsgranskning av pianoskolorna Vi spelar piano 1 av Carl-Bertil Agnestig samt Pianoresan 1 av Galina Sjevtjenko och Natalia Kazimirovskaja.  Resultaten av denna granskning har relaterats till olika pianotraditioner, pedagogiska teorier samt forskningsarbeten. Det slutgiltiga resultatet visar vilka undervisningsmetoder som används i de båda böckerna samt hur böckerna är uppbyggda. Pianoskolorna har undersökts utifrån deras innehåll vad gäller låtval, musikalisk progression och musikaliskt uttryck. Undersökningen visar bland annat att uppbyggnaden av Vi spelar piano 1 påminner om Rostvall och Wests schemateori för att hjälpa eleverna att uppnå kunskap.

Kvarteret Mjölnaren : bostadsgård på bjälklag

Uppsalahem, Uppsalas municipal renting company, builds about 250 new apartments every year. Mjölnaren in Kungsängen is a project which contributes with about 130 new renting apartments finished in 2010/2011. This report has lead up to a proposal. Focus lies on how to create a courtyard on beam joists where shape, style and different types of functions are important elements. The report also brings up ground materials, details, plants, availability and built up plantings. All these aspects together are what create a well functioning and pleasant courtyard. All through the work with this report I have taken part of the meetings concerning the project.

Bakom och genom ordet: Selma Lagerlöf i brev och historieskrivning

The object of this study has been to establish how language is used to present and establish a person?s identity. The studied language usage is that of renowned author Selma Lagerlöf and the language studied is that of her personal correspondence. This language picture is placed alongside the public depiction of her and a comparison of sorts is made. The chosen method has been to study Lagerlöf?sprivate correspondence and to compare her language markers in those to the literature history?s picture of her.

Produktutvecklingsmetoder för industriellt restmaterial

Rapporten behandlar framtagandet av en produktutvecklingsmetod för industriellt restmaterial. Studien har gjorts på uppdrag av Creatables som är ett projekt inom företaget KAAV AB.Creatables arbetar med att ta fram konsumentprodukter genom att ta tillvara och förädla restmaterial från industrin, därav deras slogan Made from Waste.Dagens konsumtionssamhälle förbrukar mycket av jordens resurser och det krävs en effektivisering i utnyttjandet av dessa för att säkra tillgångar för framtida generationer. Creatables är ett ungt projekt med små resurser och således har syftet med examensarbetet varit att ta fram en ny produktutvecklingsmetod för Creatables anpassad till deras arbetssätt och storlek.För att utreda uppgiften har arbetet delats in i två delar som sedan utvecklats parallellt med varandra. En produktutvecklingsmetod och ett flertal produkter av restmaterial har arbetets fram.Litteraturstudier, intervjuer och studiebesök har genomförts för att bygga en grund för resultatet att stå på. Tidigare publicerade teorier om produktutveckling har studerats och informationen och resultaten från dessa har i kombination med produktutvecklingsarbetet använts för att ta fram en produktutvecklingsmetod som passar Creatables.Resultatet är indelat i tre huvudområden.

En nyanserad eller homogen judendom? : Hur fem religionsläroböcker för gymnasiet framställer judendomen

This essay aims to examine if five high school textbooks represent Judaism as homogeneous or diverse. The purpose is to see if textbooks add a diverse or homogeneous view on Judaism. The methods for this essay are a qualitative content analysis and an image analysis. The results tells us that both homogeneous and heterogeneous tendencies can be found in the textbooks to a certain extent. The homogeneous tendencies can be explained as an aftereffect of the textbooks? authors becoming limited by their schedule, amount of pages and so on.

Energieffektivisering av arbetsbodar på byggarbetsplatser

Everyone has to take a greater responsibility in energy issues, both individuals and companies. There have been some major developments in the construction industry but there is still a lot to be done. This diploma work thesis presents different methods of making existing construction shed establishments to use less energy. What is possible to do and how much energy is there to be saved? A shed establishment consisting of 8 shed units were studied in this project and the building simulation tool VIP-Energy was used to simulate different types of material in the sheds. An infrared camera was used to locate thermal bridges. There are several factors that can be improved to make a construction shed establishment to use less energy.

Produktutveckling av mobil förstahjälpenstation

This thesis is about a part of the marquetrytechnique, scorching. Scorching is made by heating up something, put a veneer into the heated substance and make a controlled burning. This technique is old but still used today and have according to me great potential for development. In my work I wanted to give the scorching greater room then I earlier have seen. I wanted the scorching to be the dominant ingredient for a decorative element in a piece of furniture or an interior.

Utvärdering av AOT för ett pilotskaligt, recikulerat akvakultursystem för fiskodling

With the climate change issues growing in importance on the social agenda, the field of urban masterplanning is of no exception when it comes to minimizing the carbon footprint in a variety of projects. The aim of this thesis has been to prepare the Carbon Critical Masterplanning tool, a software plugin for carbon dioxide emissions assessment developed by Atkins, to be used in Swedish conditions. The main targets were to improve the areas of the tool associated with energy conversion and renewable energy sources, and to test the tool in a real case. A planned construction of a new campus in Albano, Stockholm was chosen for the pilot study. A 3D model was built in the tool and the carbon footprint was calculated for a variety of combinations for energy supply to the future area.

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.

Se men inte röra : Röntgen som verktyg i dokumentation av historiska stoppningar.

How can we use modern X-ray technology to raise awareness of the information that is hidden in historic upholstery? The materials and techniques add information to the history object in question and  about a profession that is sparsely documented in our country. The knowledge we have today has largely been obtained by studying damaged upholstery, or by removing the show cover and upholstery, a technique which involves high risk of damaging the upholstery. X-ray technology offers  a non- intrusive way to examine historical upholstery.Through case studies, I examined four artefacts. The artefacts went trough an inititial visual exam before being transported to The National Heritage Board in Visby where they underwent a thorough X-ray exam.

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