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2357 Uppsatser om Water-living organisms - Sida 36 av 158
Metoder att förhindra nedisning av vindkraftverksblad
ABSTRACTMany wind turbines have problems with icing and there is still no effective method to de-ice without stoppage of production and power loss. Here I therefore consider other methods than those available today, and particularly, I consider how these methods could be applied to wind turbines of the company Oxel. A surface where the water droplets do not attach might be the basis for a useful method. If no water attaches, no ice could form. To accomplish this a hydrophobic surface is nessesary, for example wax.
MIljöifiering "Hur vi slutade att oroa oss för framtiden och gjorde något för att förändra den! "
Denna uppsats syftar till att ta fram ett teoretiskt underlag för hur miljöprojektet CLICC (Climate Living In Cities Concept) i Malmö skulle kunna utvecklas med hjälp av teorier kring de relativt nya begreppen Spelifiering och Captology. Målet är att förbättra den miljökommunikativa processen där de boende i bostadsförening Hilda ska motiveras att minska sina koldioxidutsläpp med 50 procent. Metoden för denna studie utgörs av en kombinerad litteratur- och en fallstudie.
Forskningen kring Spelifiering, Captology och miljökommunikation utgör grunden för denna studie. Detta har sedan kompletterats med en intervju där Miljöförvaltningens projektansvarige för CLICC har gett sin bild av projektet och de hinder som existerar.
Uppsatsen utmynnar i ett antal teoretiskt grundade förslag som behandlar möjligheten att, med hjälp av Spelifiering och Captology, överbrygga miljökommunikativa hinder och uppmuntra de boende till att både delta i projektet och förändra sin livsstil i en mer miljöanpassad riktning..
Det energiproducerande huset
We are heading towards a huge switch of how energy is produced with fossil fuels being replaced by renewable energy sources. It is not difficult to replace the energy you use in the house and there is no need for futuristic technology. There are already many established products on the market such as high efficiency vacuum solar collectors, heat pumps & small wind power stations that can supply the energy being used in a house. The company Sol & Energiteknik SE AB in Huskvarna has many different products which can reduce the need for an outside energy distributor. An average house in Sweden uses 15 000 kWh for heating, 5000 kWh for tap water and 5000 kWh for electricity.
Vattenkvalitén i Fredstorpsbäcken - dikad bäck på fastigheten Rämningstorp i Skara kommun :
The estate of Rämningstorp in the region of Västergötland in southern Sweden is administered by the holding trust company Skogssällskapet i Skövde. In 1999 measures were taken by Skogssällskapet to drain the stream Fredstorpsbäcken as a means to increase the forest productivity of the surrounding lands, which are situated on the estate of Rämningstorp. Almost immediately after the drainage, the streamwater turned turbid and a landowner downstream reported the issue to the county administrative board of the region.
The aim of this thesis was firstly to analyse the suspended matter that appeared during summer/autumn and secondly to explain why it came to be. Initial hypotheses for the explanation to the greyish turbid water were that it was either 1) a chemical/biochemical precipitate, or 2) an bacterial/algal blooming.
?Jag vill vara självförsörjande? : - En kvalitativ studie om unga vuxnas upplevelser av arbetslösheten
This is a qualitative study with a hermeneutic and partially inductive approach. The study?s purpose is to enhance the understanding of young adults experiences of unemployment and the importance of being employed. In this study, eight young adults participate in the project Framtid Kronoberg. The youths are 19-25 years of age.
Bekämpningsmedelsrester i dricksvatten : En undersökning av bekämpningsmedel i 50 enskilda brunnar i Laholms kommun
AbstractThe knowledge about pesticide residue in private wells is not well documented in Sweden.Previous studies have detected pesticide residue in private wells, this issue is what made themunicipality of Laholm commission the study. The purpose was to collect water samples from50 private wells in Laholm and have them analyzed for traces of pesticides. The wells in thestudy are spread geographical over the entire municipality. The analysis of the water sampleswas carried out by the accredited laboratory Eurofins. Nine of the 50 wells in this studycontained residue of pesticides and two of these exceeded the allowed concentration of 0,1 ?g/l.Nine different pesticides were detected, among these were BAM, Atrazin and breakdownproducts from Metribuzin.
Landsbygdsturism och dess förutsättningar : en jämförandestudie kring vilka resurser som krävs för ett framgångsrikt entreprenörskap
Many jobs in rural areas have historically been linked to the agricultural sector. The restructuring that has been implemented in agriculture has resulted in a significant reduction in the number of jobs in rural areas. A consequence of this is that many people have moved to cities to earn a living. To maintain a living countryside in Sweden, it is therefore essential to create alternative livehoods in rural areas. An industry that can have a major impact in the future is rural tourism.
Att leva med långvarig smärta : En litteraturstudie
Introduction: Pain is a subjective experience. People subjected to pain often experience a reducedquality of life. Chronic pain is pain that has been going on for at least threemonths.Problem area: People with chronic pain are subjected to unnecessary suffering and disability. Therefore it is crucial that the nursing staff takes their situation seriously.Purpose: The purpose of the study was to describe the patient's? experiences and apprehensionof living with chronic non-malignant pain, and how this affected their everydaylife.Method: Systematic analysis of 23 depicting articles.
Järnets förekomst i grundvattnet i isälvsavlagringar i Dalarna : Bakgrundshalter och rörmaterialets inverkan vid grundvattenprovtagning
A study has been performed that investigates the variation of iron content in groundwater.The study was initiated by Midvatten AB, which noticed that the iron content in groundwater samples can vary greatly over small distances. The purpose of this study was to geochemically and geohydrologically determine the factors that influence the content of iron and manganese in groundwater from a selection of eskers in Dalarna, and determine how to best sample groundwater with the method used by Midvatten AB. An evaluation was made of how the vertical variation in soil material, water composition, pumping time and pipe material affects the content of iron in groundwater. Piper diagrams were used to study the relationship between the chemical composition of the groundwater and the content of iron and manganese in groundwater samples from the studied areas. The groundwater from the studied areas was then classified in the Piper diagrams, according to the content of the major ions.
Att leva med ett barn som drabbats av cancer ? ett syskons perspektiv : En litteraturbaserad studie grundad på analys av kvalitativ forskning
Background:Every year, in Sweden, 250 children and adolescents below 15 years of age are diagnosed with cancer. Over 75% of those diagnosed are cured. Cancer affects not only the child but the whole family. Siblings of the affected child can easily suffer from a lack of attention.Aim:This study aimed to illuminate siblings' experiences of living in a family with a child affected by cancer.Method:A literature-based study based on nine qualitative studies.Results:The result showed that it was important for siblings to have someone close and not be alone, they needed to feel a community. Not to know and not to understand what has happened made them to feel grief, fear, stress and jealousy.
Brand Culture : Between consumers and brands
The empirical data that lies behind this survey comes from field work between 1992 and 1995. This field work represents work I made myself as a sales-man for the company, Malmberg Original Water. The task was to implement the Malmberg mineral water brand on the restaurant market of the South-Swedish area. Our aim was to reach the upper-scale, premium market of restaurants. The mission was successfully completed, and at 1996 we had completed the position as the most exclusively positioned mineral water brand in Skåne (Southernmost Sweden).
Perkolationsfilter : En undersökning av reningseffekt med avseende på järn och mangan
This master thesis has been done in cooperation with Sweco Viak AB in Sundsvall. The aimwith the project is to investigate the purifying effect of percolation filter due to iron andmanganese. The overall goal was to investigate how the parameters surface load,sandfractions, and burden time affect the purifying effect. The expectation is to optimize thedesign and find a demouldning of the filter that gives sufficient purifying with a highersurface load. As an attempt to accelerate the curing of the filter, experiments with a layer ofsand which surface has been covered with manganese ore (MnO2) on top of the filter havebeen done.As test filters 10 L bars were used and the experimental work was performed at thewaterworks in Hassela and Munkbysjön.In Hassela different sandfractions were tested.
Hållbart skogsbruk och naturvård ? ett skogsägarperspektiv
The Swedish government has set up 16 environmental goals for Sweden to achieve. One ofthem is ?Living forests?, which is the foundation for the ?National strategy for the formalprotection of forests?. The ?National strategy? puts the private forest owner at the centre ofattention in order to achieve the environmental goal ?Living forests?.
The bioavailability of soluble oxalates in stir-fried silver beet leaves
The prevailing food and energy crisis of the world, due to the declining reserves of fossil energy and a never ending rise of consumption, forces us to look into new fields to supply our energy demand. The boom of bio energy is criticized, as food crops are used to provide biodiesel and ethanol and the volumes are ridiculously small to supply world demand. Algae are one of the world?s oldest life forms and exist in many different phyla, providing a great variety to choose from, for different purposes. Cultivating microalgae offer a way to produce energy at great volumes without competing with food production and at the same time the algae offer a way to use our expensive nutrients in a more efficient way, besides this the algae are carbon dioxide neutral since their carbon source can be supplied by the atmosphere and the additional energy required can be supplied by algal oil or other renewable sources.