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636 Uppsatser om Carbon formation - Sida 25 av 43
Villkorslös Solidaritet? Om intresseheterogenitet inom Europafacken
This thesis deals with the supranational organization of European trade unions. The European trade union movement is, via its umbrella organization the ETUC, an institutionalized social partner within the European Union. The ETUC is a very diverse organization with great potential of conflicting interest among its members. This thesis therefore seeks to explore the dynamics and interest heterogeneity of the ETUC. Drawing on previous research and literature it formulates a number of hypothesises to test what variables that influence the member organizations policy preferences (i.e.
Mikroalger för hållbar energiproduktion - Chlorella vulgaris i en kretsloppsanpassad alg-biogasprocess
Odling av mikroalger för framställning av biogas är ett relativt outforskat område. Den forskning som hittills utförts har påvisat lovande resultat tack vare möjligheten att utnyttja resurser som idag går till spillo, eller till och med utgör miljöproblem; mikroalgerna kan rena både näringsrikt vatten (exv. avloppsvatten) och koldioxidutsläpp (rökgaser från industrin) då de tar upp föreningar innehållande kväve, fosfor och kol från dessa källor. Den producerade biogasen kan ersätta fossila bränslen. Dessutom skapas en rötrest som kan återföras till odlingsmarker vilket sluter näringskretsloppet.
Naturlig nedbrytning av klorerade lösningsmedel i grundvatten
Chlorinated solvents are common contaminants in soil and water. Under anaerobic conditions microbes are capable of transforming chlorinated solvents into ethylene which would result in a remediation of the contaminated area. In order to use natural attenuation as a remediation method evidence of continuous degradation is required. Furthermore, the degradation must occur at a sufficient rate and continuous monitoring of the site is needed until the demanded levels are achieved. A field study was performed on the basis of data from a dry-cleaning facility contaminated mainly by perchloroethylene.
Elever i kommunala skolplaner : En diskursanalys av hur elever konstitueras som subjekt
The aim of this essay is to analyze how students are constituted as subjects in local curricula. The theoretical perspective is grounded in Michel Foucault?s notion of governmentality and power/knowledge and his critique of a sovereign subject. From this theoretical perspective I use Foucault?s concept of formation of objects and Ernesto Laclau and Chantal Mouffe?s idea of subject positioning as tools for a discourse analysis.
Utveckling av en Multi-Zonsmodell för NOx Bildning i Diesel Motorer
This thesis work is the last part of the Master of Science education inmechanical engineering at KTH, Stockholm.The aim of this project was the development of a Multi-zone modelfor NOxformation in Diesel engines. Because of the stringent emissionlegislations, great effort is made to decrease the fuel consumption and theharmful emissions of internal combustion engines. Computer simulationsplay a decisive role in this context because they substitute the expensiveand time-consuming laboratory tests.The model is based on a multi-zone approach and uses the wellknownExtended Zeldovich Mechanism which gives a relation to calculatethe NO formation rate using the concentration of different gas speciesinvolved in the process.All the most important phenomena involved in the Diesel combustionhave been modelled. A special attention is then paid to the equilibriumconcentration calculation; this is a significant part of the model whichstrongly influences the following steps.A Simulink model has also been developed. This second version isbased on the previous model and it is made especially to allow theconnection with other external softwares, GT-power in this case.
Omlastningsteminal - En studie av miljöeffekter vid införande av omlastningsterminal och ruttplaneringssystem i Kalmar kommun
Title:Transshipment Terminal ? A study of environmental effects from the introduction of a transshipment terminal and a route planning system in the municipality of Kalmar Examiner:Andersson, PetraKey words:Transshipment terminal, route planning, environmental impact Purpose:The study aims to examine how a transshipment terminal and a route planning system may have implications for the municipality of Kalmar from environmental concerns. Methodology:The thesis is a case study on the municipality of Kalmar. A positivistic -and an objectivistic approach have been used. The strategic approach that was used was quantitative.
Barnperspektiv - Information till asylsökande barn och deras rättighet att komma till tals på Migrationsverket
Nyckelord: asylsökande barn, barnperspektiv, information, Migrationsverket, rätt att komma till tals.
Denna uppsats synliggör asylsökande barns rätt till information och rätt att komma till tals ut-ifrån den teoretiska utgångspunkten barnperspektiv som denna uppsats utgår ifrån. Vilken in-formation barnen har fått ta del av, och om och när barnen får komma till tals på Migrationsverket diskuteras i denna uppsats. Migrationsverket har uppmärksammat att myndigheten inte har riktad information till asylsökande barn. Detta ledde till projektet Riktad information till asylsökande barn startades, för att framställa informationsmaterial till asylsökande barn.
Konstruktionen av Sverige och en svensk identitet : Diskursanalys av två läromedel i svenska som andraspråk
This essay is written in order to expose the construction of collective identity in textbooks for Swedish as a second language. To help visualize the process that shapes and categorize sub-jects based on a relational identity formation I assume mostly from Ernesto Laclau and Chan-tal Mouffe's discourse analysis theory frame. The paper called it as discourse theory. There are two textbooks in Swedish as a second language to be studied. Based on the textual materi-al found in the textbooks I perform a discourse analysis involving mainly focus on relational identity construction.
Idiopatisk cystit hos katt : en retrospektiv studie
Lower urinary tract diseases are a common problem in cats all over the world. The symptoms are for example dysuria, pollakuria, stranguria, periuria and hematuria. In approximately two thirds of these cats the underlying cause is not known and the disease is therefore called feline idiopathic cystitis (FIC). We need to know more about the disease to get a consistently effective treatment and prevention.
A retrospective study was performed in 50 cats with symptoms of FIC and where other causes of inflammation were ruled out. Data like breed, age, sex, body weight, feeding, therapy and therapeutic results were collected, also if it was an indoor or outdoor cat, duration of the symptoms, if there was any stress and if the cat was living with another cat.
Aggregatstabilitet, jordbearbetning och fosforförluster i ett typområde på jordbruksmark :
Large amounts of phosphorus (P) are lost from the arable land due to water erosion. Both phosphorus attached to particles and dissolved phosphorus (mainly phosphate) are transported away with drainage-water and surface runoff. Good soil structure is important in minimizing these losses.
In this study, soils from 50 fields were analysed with respect to aggregate stability as measured by dispersion of clay together with the content of total phosphorus (TotP), particulate phosphorus (PP) and phosphate phosphorus (PO4P) in the water phase. All soils were clay soils with clay content varying between 21 and 54%.
Integration och assimilering : En undersökande studie av sfi
The purpose of this essay is to examine sfi (Swedish for immigrants), which is an ingrational-political tool with objective of teaching immigrants to read and write in Swedish. With the use of critical discourse analysis we examine the discursive practices within sfi. We also examine our methodological and theoretical approaches, and our application of them. Our research questions are as follows:? How are the discursive usage of ?person centered? and ?society centered? expressions being used?? How well does our methodological and theoretical resources work?In our theoretical viewpoint we use ?post colonial theory?, which is a perspective concerned with global power relations seen from a historical perspective.
Energieffektiv Linjesjöfart Till Och Från Gotland
The ferry traffic to Gotland is essential for the island?s ability to live and develop. Yearly, it transports 1,6 million passengers, 500 000 personal vehicles and 750 000 lane meters of freight with four Ro-Pax ferries. The traffic is controlled and subsidized by the Swedish government since 1971 in order to guarantee the inhabitants and industry of Gotland a satisfactory transportation service. As a consequence of the past decades increased traffic quality, mainly due to a decrease in crossing times, the traffic?s environmental impact and costs has also increased.The Master Thesis proposes a new energy efficient traffic arrangement that satisfies the users? preferences in the same extent as today.
Skogs- och energibolagens attityd till förnybara drivmedel vid upphandling av transporttjänster i norra Sverige
Sweden's government is dedicated to the goal of having a vehicle fleet that is independent of fossil fuels by 2030. Achieving these goals requires, among other things, new types of fuel that give lower net emissions of carbon dioxide. The present market includes stations offering lowlevel blends of renewable fuels in conventional diesel as well as some stations offering renewable fuels only.
The purpose of this study is to survey purchasers? attitudes to the use renewable fuels in roundwood and bioenergy transport in forest- and energy companies.
The study was based on qualitative interviews through a combination of face-to-face meetings and telephone interviews with each sample group. The total number of respondents was ten (10), consisting of five (5) from forest companies and five (5) from energy companies.
Transport service purchasers were generally positive to renewable fuels and considered these necessary in the future.
Raä 977 - En lokal och tre aktivitetsytor. : En tvärvetenskaplig undersökning av Raä 977 vid Vojmsjön i Vilhelmina socken
This candidate thesis concerns the ?all but forgotten? material from the bronze age site named ?Raä 977, Hansbo 1:3, Vojmsjön, Vilhelmina?. During 1975-76, an archaeological dig was carried out by Västerbottens museum led by Ulla Walukiewich in an attempt to preserve the information the site held, before it was destroyed by the erosion brought on by the recently regulated sea ?Vojm? (Vojmsjön). The archaeological dig yielded a stunning amount of finds, samples and information previously unknown.
Svett och blod : modernitet, kroppskultur och ras i Gymniska Förbundets tidskrift Gymn, 1928-1932
This study aims to investigate and describe the direction of the ideological development of the Swedish gymnastics association Gymniska Förbundet. Between 1928 and 1932, this organization transformed from a purely gymnastic and cultural association into an influential platform for the production of Swedish nationalist ideology. Based on theories of National Socialism?s formation within modern society, the analysis focus on the conditions regulating Gymniska Förbundets relation to modernity. Thus the study examines the association?s ideas in relationship to the concept of modernity.