Sök:

Sökresultat:

1081 Uppsatser om Natural cement - Sida 2 av 73

Odling av färgväxter. En kulturhistorisk undersökning ur ett hortikulturellt perspektiv

Uppsats för avläggande av filosofie kandidatexamen iKulturvård, Trädgårdens hantverk och design22,5 hp, 2014.

Tilla?mpning och simulering av naturlig ventilation : Potential fo?r utnyttjande i kontorsrum

Mechanical ventilation is the most common type ofventilation in newly constructed office buildings. Therehas been an interest to utilize natural ventilationinstead of mechanical ventilation among architects andHVAC consultants in recent years. This is due to thesize of mechanical ventilation systems, which arespace consuming. The mechanical ventilation system isalso complex and requires maintenance. Furthermore,the fan uses a considerable amount of energy.

Stabilisering av sulfidjord: en litteratur- och
laboratoriestudie

Detta examensarbete ingår som den första, och utgör den laborativa delen av ett forskningsprojekt där stabilisering av sulfidjord undersöks. Syftet med arbetet var att undersöka vilken eller vilka bindemedelskombinationer respektive inblandningsmängder som är lämpligast för stabilisering av sulfidhaltiga jordar. Målet med studien är att genom laboratorieförsök finna ett eller flera bindemedel som ger en tillfredsställande stabiliseringseffekt. Resultat från tidigare utförda stabiliseringsprojekt i sulfidjord har sammanställts och utvärderats och legat till grund för den laboratoriestudie som genomförts. Laboratoriestudien omfattar en inblandningsserie där jord från fyra djup från samma provlokal använts.

?And so they lived happily ever after?? : en diskursanalytisk och queerteoretisk bild- och textanalys av läroböcker i engelska för gymnasiet

This thesis consists of a discourse and queer theoretical text and image analysis of school books in English used in the Swedish upper secondary school.  The whole content of two school books have been analysed from a norm critical perspective but one chapter in each of them has been analysed more thoroughly than the rest. These two chapters form the major part of the analysis.The thesis? problem formulation and objective derive from a personal experience of being a teacher student and part time teacher in Swedish schools. This experience shows the prevalence of a strong heteronormativity both in the schools? every day life and in the used school books.

Riskbedömning och naturligt producerade dioxiner

The highly toxic man-made substance referred to as dioxin (polychlorinated dibenzo-para-dioxins (PCDDs) and polychlorinated dibenzofurans (PCDFs)) causes severe health damages both to humans and other organisms, with lethality as its worst. Because of the toxicity several risk assessments has been performed on dioxins trying to determine at what concentration there are no risk of exposure. Resent years of research has discovered that these substances are not only anthropogenically but also producedin natural processes, like volcanoes and forest fires. To investigate if there is a need to take these naturally formed dioxins into account in the risk assessment processes, interviews with persons at relevant institutions in Sweden has been made. Analyses of existing risk assessment methods and political documents were also made to complete the picture.

Rättigheter och skyldigheter i grundlagarna : I ljuset av den politiska filosofin

The purpose of this essay has been to compare different constitutions, and their outlook on citizenship, rights, obligations and natural duty. This has been done in the light of the political philosophy, in order to give the answer to four questions. These questions are: Which rights and obligations can be seen in the constitutions, and how can it be interpreted. Can there be signs of any political philosophy in the constitutions?  Are there any differences between the constitutions regarding citizenship, rights, obligations and natural duty? If so, what are the differences? Can the rights be seen in a further extent than the obligations in the constitutions?I have conducted a qualitative comparision study and analyzed the political philosophers and made a classification scheme of their views.

Mjölkraskvigors tillväxt på naturbete :

To turn the dairy heifers out on pasture is the most natural way for the cattle to get feed. At the same time it is cheap and if it is right treated a feed of high nutritive value. The problem today is to get dairy heifers to grow enough when they are grazing at natural pasture for the entire summer. Therefore, the opinions differ whether pasture is a resource or a problem. The increasing interest of pasture production is due to the fact that you can receive grants for preserving valuable natural assets and cultural landscape elements in the pasture land. A high grazing pressure is necessary to preserve an open landscape and a great variety of species. In the same time the heifers have to supply their nutritive needs in order to grow and be large enough to show heat and be pregnant in right time to calve with a sufficient body size and at an economically right age. This paper includes a literature review on natural pasture, pasture production, and growth of dairy heifers together with own interviews with dairy farmers about their point of view to the pasture husbandry on the farms, how they plan for pasture, look after natural pasture, treatment areas and take care of the calves and heifers. The results indicate that the time it takes and the demanded work are the biggest factors to how and why the farmers do as they do..

Entreprenöriellt lärande och entreprenörskap : En studie av hur naturbrukslärare upplever undervisningssättet

This thesis deals with how natural resource teachers in natural resource schools in Sweden work with entrepreneurial learning and entrepreneurship. It is important both for our Government and our agricultural department that entrepreneurship is present in our education. In government´s new reform 2011 for upper secondary schools entrepreneurship is the main theme, but it is not only entrepreneurship as a business company, it is also about entrepreneurship in schools like entrepreneurial capabilities in government´s writ. The purpose of this study is to examine how a number of teachers in natural resource schools are working with entrepreneurial learning and entrepreneurship. I have also asked how the teachers would like to work with these areas.The method I have chosen to use in order to perform this study is qualitative interviews with six natural resource teachers and a pilote interview.The teachers I interviewed are working to provide students with self-knowledge and teaches students to see possibilities and solve problems, which is required for us to create entrepreneurial students and entrepreneurship in education. This is also stressed in several of the literary sources I used..

Övergång till helkrossballast : En studie för Strängbetongfabrikerna i Veddige och Herrljunga

This exam report has been developed in association with Strangbetong AB, Sweden.The natural gravel that is being used as fine aggregate for concrete production today is an ending natural recourse and the Swedish government has decided to strongly reduce the extraction from the year of 2020. The only reasonable replacement is aggregates from crushed rocks but this material has other properties than natural aggregates. The concrete manufacturers now have to learn how to use these new fine aggregates in a cost effective way in order to ensure the quality of their concrete production.In this project, crushed aggregates and combination of crushed and natural aggregates have been tested with existing formulas for fresh concrete. The two parameters yield stress and plastic viscosity have been measured which gives a good description of the workability of the fresh concrete. Different methods to make measurements on the dry fine aggregates, has also been tested, to find out if there is any correlations between these parameters and the parameters from the measurement on the fresh concrete..

Sköldpaddsdammen som en naturlig oas på Mallorca : en fallstudie

This study shows how to plan a pond with an ecosystem which although it will have turtles living in it will not need to be cared. I will also demonstrate how this pond would be designed to work in the natural landscape on Mallorca. The background to the study is that I am interested to investigate how plants that we in Sweden are using as indoor plants are growing in their natural landscape and how to build a land-scape with them. The study highlights different cleaning-systems that can be used to clean a pond in a natural way. A comparison will be made between the conditions of an exterminated turtle-species which will live in this environment and a species that is easier to care for.

Hur mycket naturbetesmarker har vi idag? : skattning av areal via nationella, stickprovsbaserade inventeringar samt jämförelse mot befintliga informationskällor

To reach objectives within EU?s Habitatdirective and the national environmental objectives, more information about semi-natural pastures is required. The expression semi-natural pasture is used for pastures that during the latest time are uncultivated and unfertilized. Semi-natural pastures are important in many respects for example to conserve the biodiversity and for our cultural history. The aim of my study was to compile and calculate the area of semi-natural pastures by use existing sources of information.

Efterinjektering i Hallandsåstunneln. Analys av data från efterinjektering med cement och silica sol i den oinklädda delen av tunneln.

Social housing in Northern Europe and the importance of social and political consideration in planning. Focus of the essay lies on the "burning suburbs" of France, based on literature studies combined with a study visit to Les Minguettes outside of Lyon..

Naturlekplatser :

This study is essentially based on my own questions concerning contemporary playgrounds. Why are they so unimaginative? What do the children say about them? Is it possible to create playgrounds less constructed, and with more natural elements? This report starts with references to literature studies, personal references and my personal view, and ends with a suggestion for a physical solution for an actual day care centre. The aim is to learn more about how the natural environment affects children, the importance of playing, and try to use this knowledge in a design of a day care centre. My main theme can be summarized in the following question: Why is natural elements in playgrounds considered to be healthy for children? I wanted to create a playground with natural characteristics which I myself would have appreciated as a child.

Naturkatastrofers inverkan på bankers aktiekurser : En eventstudie

Objective: Our purpose with this study is to demonstrate the impact of natural disasters on banks' share prices.Method: Quantitative survey method, an event study.Conclusion: There is no association or a very weak correlation in this study between natural disasters and the Swedish banks' share prices..

Produktionsmetodens påverkan på cementspaltens tjocklek - en pilotstudie på singelkronor i kobolt-kromlegering

Syfte: Syftet med studien var att utröna huruvida produktionsmetoden påverkar passformen för singelkronor i kobolt-krom (Co-Cr) och samtidigt undersöka vilken produktionsmetod som ger det minsta utrymmet för cement. De produktionsmetoder som undersöktes var fräsning-gjutning (FG, motsvarande engelska term: milled wax ? lost wax), fräsning (F) samt lasersintring (LS). Metod: Undersökningen utfördes med replikametoden. Metoden som sådan är allmänt vedertagen och uppvisar tillförlitlighet vad avser att skapa en avbildning av cementfilmens tjocklek. Silikonavgjutningarna, tio stycken för varje produktionsmetod, snittades och undersöktes under ett ljusmikroskop vid 31 gångers förstoring.

<- Föregående sida 2 Nästa sida ->