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6119 Uppsatser om Environmental science - Sida 43 av 408

Användning av rötrest från kombinerad etanol och biogasproduktion : en jämförelse mellan tre alternativ

Scandinavian Biogas is involved in the planning of a combined ethanol and biogas factory in Karlskoga, Sweden. Besides biogas and ethanol large amounts of digester residues will be produced, about 450 000 liquid tonnes residue (~7,3 % Dry Substance( DS)). The objective of this thesis was to investigate possible uses of the residue from the biogas production process ScandgasEthanol developed by Scandinavian Biogas, and to derive a methodological approach how to evaluate and compare handling systems. Three systems where proposed and compared in this thesis; spreading of the untreated residue as fertilizer (system 1), dewatering to a higher DS content to reduce transportation before spreading as fertilizer (system 2) and production of a solid fuel by dewatering and drying the residue (system 3). The general conditions for the proposed systems were investigated in terms of practical viability, economical aspects, environmental impact and energy inputs/outputs.

Idén med idéhistoria : En studie av sakkunnigutlåtanden vid tillsättnings- och befordringsärenden i idéhistoria mellan 1985-2010

In my thesis, I set out to study academic peer reviews in the hope of clarifying the experts? views on what qualities and qualifications are desirable when appointing or promoting scholars within History of Science. I also investigate whether or not these views change over the years, as I have studied opinions written between 1980 and 2010. I use a qualitative method of analysis, in which I study what words in the peer reviews are used to describe certain values, and how these words relate to the historical and political background of History of Science in Sweden. My research indicates that academic experts are starting to adapt their opinions to the change in educational politics that has taken place during the second half of the 20th century.

"Det" - Profession och giltighetsanspråk i läraryrket

During my one year master in pedagogic science, I was frequently given the impression that depicts the pedagogue?s profession as a rather transcendent talent or, more precisely, a matter of having ?it? or not. It seemed to me, as if the communicative part of the teacher?s specialised skill was more or less undefined in the description of what makes the pedagogue a professional pedagogue. On those premisses, I was led to the aim of this study, which is pursuing the very essence of the profession by discussing how five teachers validate their daily work from a habermasian perspective on communication, society and pedagogy.

Siktning som saneringsmetod för metallförorenad mark

Toxic metals contaminate soil worldwide and thus serve as sever environmental threat. Therefore the purposes of this study were to investigate in which soil fractions that different heavy metals (Fe, As, Cu, Zn and Pb) could be found in contaminated soils and if it is possible to use sieving as a method for decontamination. Soil samples were collected from three different locations, the Nasa silver mine, the Blaiken-mine and Svalget environmental station. The samples were oven dried and later on sieved into six different fractions 8mm, 4 mm, 0.5 mm, 0.250mm, 0.063 mm and <0.063 mm. The fractions 4 mm, 0.5 mm and <0.063 mm from each location were analyzed in an x-ray fluorescence detector.

Att fånga en föränderlig värld : En utredning av omvärldsanalysens nuläge och utvecklingspotential inom Regionförbundet Örebro

The first aim of this thesis is to descriptively identify and chart the activities of the strategic intelligence and environmental scanning that take place at the regional collaboration network Regionförbundet Örebro. This identification is essential in reaching the comprehensive and primary aim of the thesis: to discuss, through normative discourse, what the options of improvement are and in which ways systematic operations can be integrating parts in the organization. In order to offer guidance of development from the perspectives of environmental scanning, the question at issue has emanated from activities concerning the present methods of working at Regionförbundet Örebro.During the creation of this thesis, several interviews have been made with people who are regarded to be key roles within the regional collaboration network. An analysis has been made, based on governing documents and answers from the interviews, where possible improvements of the business have been identified. The inferences become parts of a greater potential of amelioration since they are presented as active solutions and proposals that can be directly adaptable to the organization.Our proposals of improvements/ameliorations are constituted by a number of concrete/explicit points such as: a wider public information supply and an introduction of several annual routines and methods..

Från Bomull till Byxor Livscykel Inventering och Ansvarsfullt Företagande En MFS i Södra Indien

A growing number of companies realise that to achieve their environmental goals and satisfy stakeholder expectations, they need to look beyond their own facilities and to involve their suppliers in environmental initiatives. A life cycle approach means that the production system should be optimised as whole, across national boarders and individual organisations taking part all the way from extraction to disposal. This study is a Life Cycle Inventory of resources used when producing a piece of cotton garment and the method is based on the standardisation series of ISO 14040-43. The area of study, Tamil Nadu the most southern state of India, accounts for more than 90% of India?s knitwear exports to Western Europe.

Det relativa värdet av ämnesingångar i databaser: Variationer mellan discipliner

This thesis deals with tactics for information seeking in electronic databases. An important aspect is knowledge of the relative value of different subject access points. The method used here is literature studies. Nineteen empirical studies are described and analysed with the purpose to compare the relative value of different subject access points. The studies examined compare the relative value of subject access points in relation to each other or in relation to different scientific disciplines.

Det mörka hörnet? Ett förslag till en relativistisk postmodernism

abstractThe aim of this essay is to try to convince the reader that relativism and postmodernism (the latter implying the former, but not the other way around) can be reasonable methods for the social sciences, rather than the irresponsible play of ?extremes? theories of this kind sometimes are made out to be.The intention is to do this by way of the later Wittgenstein, the philosophy of whom is the foundation for what is termed relativism and postmodernism in this essay (definitions of a kind that are here claimed to be missing from the discourse of the social sciences). The essay also contains an empirical presentation/analysis, displaying the Wittgensteinian theory through an aspect of the American Civil Rights movement of the 1950s and -60s..

Översyn av vattenskyddsföreskrifter med tillhörande vattenskyddsområde i Hallstahammars kommun. : Vilka revideringsbehov finns?

Water is an important food and an important natural resource. In order to protect these are the Environmental Code and the EU directive given to water protection and related water protection regulations will be established for all water sources until 2010. Those who will prepare a water protection and related water protection regulations is the municipality or person responsible for water supply. The person then decides and declares the area as water protection and related water protection regulations are municipal or provincial government. The idea of creating a water protection is to protect the water supply and the body of water against pollution caused by point sources, diffuse sources and accidents combined.

Textila Konstruktioner i Rymddimensioner

Mitt arbete handlar om mötet mellan rysk konstruktivism och science fiction. Detta har jag gestaltat i ett textilt rum inspirerad av science fictionkarraktären Doktorn ur Doctor Who. Doktorn är en utomjording av en långt mer utvecklad art och från en mer avancerad civilisation än människorna, som reser i tid och rum i sitt tids-och rymdskepp TARDIS. Jag har designat ett rum som är min textila tolkning av TARDIS innersta. Arbetet kretsar kring tankar om gestaltning av en flerdimensionalitet som bara kan anas, inte ses eller förstås.

Att inspirera ett engagemang : En studie om hållbar utveckling i undervisningen

Problem: Har arbetet för hållbar utveckling inletts och i vilken grad främjas den i kommunikationen mellan lärare och student på Handelshögskolan vid Umeå Universitet?Syfte: Syftet med denna uppsats är att övergripande avbilda hur implementeringen av hållbar utveckling i undervisningen på Handelshögskolan vid Umeå Universitet. För att avbilda studieobjektets verklighet så väl som möjligt kommer vi undersöka ett antal delsyften; om vad som kommunicerats, hur det kommunicerats och hur relevant kommunikationen uppfattas i undervisningen. Detta kommer undersökas genom att titta på lärares uppfattning för att jämföras med hur studenterna uppfattar implementeringen av vår problem formulering.Teori: Teorikapitlet har sin grund från vetenskapliga arbeten och är baserad på tre teorier. En teori handlar om hur man strukturerar arbete för hållbar utveckling i en universitets kontext.

För naturens bästa : en studie av svensk kvalitetsmärkning av ekoturism

Nature?s Best is a quality-label for Swedish Eco-tourism. It is one of very few active ecotourism labels and the only one that claims quality as its main focus. The objective of this thesis is to evaluate the certification scheme Nature?s Best with regards to the values the certification creates for the companies that certify their products.

Att göra affärer i Kina - rättsligt skydd i lagen och i verkligheten

This thesis looks at the difference between the legal protection in law and the legal protection in reality when a small company working with international trade comes in contact with seller's breach of contract. The thesis uses a case taken from a company with over 30 years experience trading with China and looks at the legal protection available along with the different possibilities of dispute resolution available to a company and then looks at the reasons why this legal protection never becomes a reality and the thesis also analyses some possible reasons for this gap between law in the books and law in reality..

Undersökning av en industrifastighets material och resurshantering enligt miljöcertifieringssystemet LEED

Miljöcertifieringssystemet för byggnader, LEED (Leadership in Energy & Environmental Design) lanserades 1998 i USA av USGBC (United States Green Building Council). USGBC är en icke vinstdrivande organisation, vars mål är att bidra till utökat hållbart byggande. Skanskas första byggnad som certifierades enligt LEED färdigställdes 2001 i den amerikanska delstaten North Carolina. I slutet av februari 2009 offentliggjordes det att Skanska skall införa systemet i sin Nordiska organisation. Undersökningen som genomförts handlar om ett av LEED New Constructions sex delområden, Materials & Resources. Materialhanteringen för ett byggprojekt som Skanska uppfört har analyserats för att avgöra huruvida det skulle kunna erhålla poäng vid en certifiering enligt LEED.

Miljöpåverkan av äggproduktion : En jämförelse mellan Lilluns ägg och andra svenska äggproducenter

The purpose of this report was to compare Lilluns egg production with other Swedish egg producers based on the flow of nutrients (nitrogen, phosphorus and potassium) in the egg production systems. The main focus in the report was the utilization rate of the forage and the excess of nutrients per kg egg. Additionally, the purpose was to identify the environmental impact from Lilluns egg production and compare the results with other egg producers. The inflow of nutrients associated with forage and poultry was compared with the nutrients that were exported from the production. All of the egg producers in this study had an excess of nutrients.

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