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1328 Uppsatser om Laboratory materials - Sida 43 av 89
Studie och riskanalys av sulfidleror i Uppsala stad
Most of the city of Uppsala rests on postglacial clay with a varying content of sulphur. The sulphur occurs naturally in the clay in reduced form as sulphide and the clay is for that reason usually called ?sulphide clay?. Excavation during construction activities gives rise to large amounts of excavation material, of which the sulphide clay is a considerable part.When the clay is exposed to air and water, an oxidation of the sulphides occurs which may produce an acid leachate and the mobilisation of heavy metals bound in the clay or underlying material. The aim of the work has been to improve our understanding of the behaviour of sulphide clays and produce a basis for risk assessment in the future handling of excavation material with high sulphide content.
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.
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.
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.
Kalciums och magnesiums inverkan på arsenikavdrivningen i virvelbäddsugnen : The influence of calcium and magnesium on the expellation of arsenic in the fluidized bed furnace
In the fluidized bed furnace at Rönnskärsverken, Skelleftehamn, sulphur-containing ore concentrates are roasted in order to remove about 50% of the sulphur in the incoming ore concentrate. This occurs in order to reach the goal of a matte containing 55% of copper in the following smelting process. At the same time as the ore concentrate is partially roasted pollutions as arsenic, antimony and bismuth are expelled. Earlier made thermodynamic calculations of equilibrium suggested that calcium and magnesium form stable compounds with arsenic and thereby inhibit expellation of arsenic in the fluidized bed furnace, an element that is undesired. The purpose of this thesis work was to gain knowledge of the mechanisms behind the formation of these stable arsenic compounds.
Bibliotekens bemötande av personer med fysiska funktionsnedsättningar : En fallstudie om tillgängligheten vid två svenska folkbibliotek
This paper explores the accessibility for patrons with different physical disabilities in regards to materials, service, the library building and its website at two typical, medium-sized public libraries in Sweden.The case study is based on interviews, observations, and document and literature studies. As a theoretical framework for this study, Buckland?s model of information barriers is used to describe, discuss and evaluate how the two libraries work with accessibility. In addition, international and national guidelines are used to measure whether additional actions are required of the libraries to improve the accessibility.The results show that both libraries are well suited in various respects to provide for the different needs and the requirements of patrons with physical disabilities. Some obstacles still exist in both libraries, especially in the lack of literature in accessible formats in different languages.
Laborera mera Kan laborativt arbetssätt under de tidiga skolåren förebygga matematiksvårigheter?
Persson, K., Rooth, P., Sundblad, S. och Uthas, K. (20008). Laborera mera ? Kan ett laborativt arbetssätt i de tidiga skolåren förebygga matematiksvårigheter? (Explore more ? Can difficulties in mathematics be prevented with laboratory work in the early school years?) Högskolan, Kristianstad.
Mediakonsumtion, social jämförelse och pornografiskt materials korrelation med kvinnors globala, kroppsliga och sexuella självkänsla
Tidigare forskning har visat att kvinnor jämför sig socialt för att utvärdera sig själva vid exponering för medialt idealiserade bilder av kvinnor i TV, tidningar och pornografiskt material. Aktuell studie avsåg att undersöka dessa typer av media och social jämförelses påverkan på kvinnors globala, kroppsliga och sexuella självkänsla. Etthundratjugo kvinnor besvarade en enkät innehållande reliabla skalor samt egenutformade frågor. Resultatet visade signifikanta effekter av social jämförelse på kvinnors globala självkänsla. Huvudeffekt av pornografikonsumtion på sexuell självkänsla påträffades.
Ett objekt : om arkitekturen i ett föremål för handling
This thesis is covering my design of an architectural object for the use in a pedagogical setting. The purpose is to create contextual premises for students, making possible the testing of designs, involving plants suitable for the urban environment. Hence, the main features in the object design is suggestive to the urban outdoor rooms - rooms that are formed amongst the city facades.
The thesis is also about the design process set out from a technical reality, based on camera imagery. To a large extent, the thesis consists of reflections concerning the object's function towards pedagogy, perception and materials. Furthermore, the object claims to be a hybrid between architecture and landscape architecture.
Sharing is Caring : En studie om viral marknadsföring i ideella organisationer.
The increased use of social media in recent years has attracted the attention of different kinds of nonprofit organisations. The purpose of this study is to identify a foundation for viral strategies for nonprofit organisations as well as to understand the current interactivity between the organisation and its followers in social media. Following that we have chosen the research question: In what ways can nonprofit organisations develop viral marketing in social media? The study has a qualitative research methodology with empirical findings as base. We have throughout the research process strived for an inductive nature in the study though there are deductive elements.