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534 Uppsatser om Nutrient composition - Sida 18 av 36
Simulator för el- och värmeproduktion : påverkan på ekonomi och miljö
In this project a simulator has been developed (in C++) with the purpose of illustrating how changes in environmental regulations, tax levels and other policy measures affect the composition of an energy system. The aim of the project was to investigate how energy companies? investment strategies are affected when changes in economic and environmental conditions occur. A standard scenario has been created based on current Swedish conditions, but the user can create new scenarios and set parameters freely.
The user is tasked with building power plants to supply the city/region with district heating and electricity during a pre-set number of years. When the simulation is finished
the result is graded in the following categories: economy, environment and quality.
To evaluate the simulator three scenarios were created (?early 20th century?, ?reduced environmental control? and ?future?) in addition to the standard scenario and these were compared with each other by examining how a select group of power plants perform under the given conditions.
Skalans betydelse vid utformning av stadsrum
When one experiences a place, it is a complex composition of both social and spatial factors.One of these spatial elements, is scale, which is influenced both by the room size and itsproportions. This paper aims to explore both large and small scale concepts and thus increasethe understanding of how scale directly and indirectly affects the experiences and uses ofurban space.First, is a theoretical discussion of scale in relation to aesthetics and the differencesbetween real scale and perceived scale. Next, is an analysis of spatial perception usingexamples from two existing sites. One, which is understood to have been planned in a largescale and one which is understood to have been planned in a small scale.When preparing this paper, the focus quickly became the importance of scale as itrelates to street spaces. The perception of a street usually takes place while in motion, whichforces it to be perceived in sections.
Klassificering av processutrustning - en grund för riskbaserat underhåll
In this report a systematic working procedure for risk classification of processing equipment from a maintenance point of view is described. How this system has been worked out is also an important part of the report. The classification system is adapted for use in complex processing plants. Preemraff Göteborg has been subject for the underlying study and application of the system.The system aims to give a good overview of the maintenance related risks at the plant. Furthermore, the analysis result is a good motivation for the suggested maintenance activities and as motivation for extended or decreased maintenance resources in total.
Membranbioreaktorteknik- en framtida lösning på Lundåkraverket? : Membrane bioreactors- A future solution at Lundåkra wastewater treatment plant?
Membrane bioreactors (MBR) combined with biological phosphorous treatment (Bio-P) has been investigated if that could be an alternative to the future expansion with conventional active sludge treatment at Lundåkra wastewater treatment plant (WWTP) in the proximity of Landskrona, Sweden.The results showed that the surface demand in the biological treatment will be reduced with 67% with the MBR-alternative compared to a conventional activated sludge process. The nutrient removal in the MBR-solution was decreased or unchanged for nitrogen-, phosphorous- and organic parameters. However, the energy demand will increase with an estimated cost of approximately 1 million SEK annually. Moreover, the extra chemical consumption is estimated to cost 370 000 SEK annually.The disturbances caused by filamentous bacteria such as sludge dispersal could be resolved with MBR-technology because the membranes are not affected by these organisms. The Bio-P process combined with MBR-technology works if the wastewater recirculates from the membranes to an aerobic zone.In the proposal, there will be a new pre-treatment step, for instance hole screens.
Herrgårdshushåll i Västmanland. En studie av herrgårdshushåll och arbetsorganisation i Munktorp- och Rytterne socken 1705-1849.
This study aims to investigate the domestic and work organization at the mansions located in the south of Västmanlands county years 1705-1849. The study takes into account the manors' size, ownership, owners' status and social changes. The study includes both large manors with noble owners and smaller manors with bourgeois owners. The study examines how the households were formed, how they changed over time and how thet may have links to the Manor's ownership and size. The organization of labour is studied on the basis of how it changed over time and what it may have links to the owners ' status and the manors size. The focus is to answer how the connection was between household size, its composition, organization of labour and the owner?s status in the society. Also if a difference can be seen between the strategies of the noble owners compared to the bourgeois owners..
Trikåkonstruktion med 3D-effekt för väggpaneler i lastbilar, ersättning av polyuretanskum
En vanligt förekommande laminering är polyuretanskum, som används för att ge egenskaper som mjukhet, komfort och flexibilitet till textiler. Ett användningsområde som tillverkaren och leverantören Borgstena Group Sweden AB använder polyuretan till är lastbilars väggpaneler. De vill dock ersätta den polyuretanskumlaminerade dubbeljerseytrikån som används idag med endast en ren trikåkonstruktion för att slippa problem som dellaminering och minskade töjegenskaper. Dessutom så har den kemiska sammansättningen av polyuretan som används i lamineringen visat sig vara belastande för både miljö och människor. I denna rapport klargörs varför polyuretanskum behöver ersättas och vilka möjligheter som finns i dagsläget för att göra detta.
The influence of forestry stands treatments on brown bears (Ursus arctos) habitat selection in Sweden ? an option for Alberta forestry?
The brown bear population in Alberta, Canada has been decreasing, while the Swedish has been increasing and all the affecting parameters are not known. This study examined the difference in these populations to see if an explanation could be found in differences between the forest management. The aim of the paper was to see if stand treatments had an influence of brown bears habitat selection in autumn in Sweden and how the results can be used in Alberta. This was done by analyzing bear positions in Sweden with forest data, and comparing forest management data for the study area in Sweden with forest management data for Alberta. The results displayed that mature forests over 60 years that have been commercially thinned are selected by bears rather than forests over 60 years that have not been commercially thinned in.
FAKTORER BAKOM M?GELTILLV?XT P? N??S SLOTT
With climate change, the temperature and relative humidity in Sweden are increasing. The majority of historical environments lack protection against this increase, which also increases the risk of mold infestation in these environments. One of these environments is N??s Slott, in which several rooms have recurring mold growth on objects and furniture. By examining one of the rooms in the castle that is in the risk zone or has mold growth, factors behind the mold growth can be investigated in order to create a basis for future actions against mold.
Diagnosens värde i den pedagogiska planeringen för koncentrationsstörda barn i skolan
In my composition, I have choosen to examine the question: What value does the diagnoses have for the teacher when it comes to organizing the work with children troubled by apprehensive disabilities?The method I used to examine my question was qualitative interview.The teachers? I have interviewed are either pre-schoolteachers or schoolteachers.Most of the teachers speak highly of using methods like Komet or SET in the work with the pupils troubled by deficits in their ability to concentrate.During my investigation, I have learned that the teachers think that methods like the above mentioned may help preventing some of the problems at school.Former research as well as the interviewed teachers are saying that rules and structure are very important when you are teaching children troubled by deficits in their ability to concentrate.The teachers are feeling just like me, a little bit insecure when it comes to the diagnoses and most of the time the diagnoses just confirm what the teacher already knows.My intention with this study was to aquire a deeper understanding of what it means to have concentration disabilities and to broaden my knowledge of what the teacher can do to ease the years at school for these children.Keywords: Concentration disabilities, teachers, diagnose, educational planning.
Förklassik för knäppinstrument : En studie kring en sonat för Cittra av Johan Wikmanson
AbstractHåkan Ljung: Förklassik för knäppinstrument. En studie kring en sonat för cittra av Johan Wikmanson. Uppsala universitet: Institutionen för musikvetenskap, C-uppsats för 60 poäng, ht 2005.My main purpose with this thesis is to highlight a piece of music written for a relative of the 18th century cittern. This sonata, composed around 1780, is a well thought composition written in a pre-classical style. The composer of this music is Johan Wikmanson (1753-1800) who is mostly known for his string quartets, songs and piano pieces. Because of the importance for the music as a whole, one task is to reconstruct the second movement from severe errors. This was carried out by doing an overall analysis of the two movements themes, motives and structures.Since many arrangements for plucked instruments occurred by other composer's works, my second aim is try to tie this Sonate as an original version written by Wikmanson himself. As a part of my main purpose, the reader will also receive a short presentation of the Swedish cittern designed by the Royal instrument maker Johan Öberg the elder (1727?-1779) with a description of its connection with the manuscript. .
Diurnal rhythm of the savannah elephant (Loxodonta africana africana) in Maasai Mara National Reserve, Kenya
Elephants are hindgut fermenters, which affects their diurnal rhythm. To reach their nutrient demands, elephants must eat almost constantly throughout the light part of the day. Sexual dimorphism may also affect their behavioral patterns. To understand the elephants' normal living habits and foraging behaviour, we conducted a pre-study in the Mara Triangle, the north-western part of the Maasai Mara National Reserve. Each of four to six observers randomly chose a focal animal within the group of elephants by the criteria that they were adults and visible.
Mineral composition of New Zealand monofloral honeys
The objective of this study was to determine the mineral content in ten New Zealand monofloral honeys, in order to distinguish whether New Zealand monofloral honeys are a good source of minerals compared to honeys from other parts of the world. The ten monofloral honeys were collected from a local honey factory (Airborne Honey Ltd, Leeston), Clover, Honeydew, Kamahi, Manuka, Nodding Thistle, Rata, Rewarewa, Tawari, Thyme and Vipers Bugloss honeys were been investigated. The water content, water activity, pH, conductivity, colour and mineral content were evaluated. The water activity was averaged for all the ten New Zealand monofloral honeys and set to 0.59 aw, which indicates a high stability and long shelf life as a food stuff. A strong correlation between total mineral content, pH, conductivity and colour was obtained.
Interkulturellt förhållningssätt : Är det något givet i den svenska kommunala skolan?
In this composition we will treat issues about intercultural approach and managing diversity in Swedish municipal/public school. This survey includes several theories and conceptions as ethnicity, culture, multiplicity/managing diversity and intercultural approach/multiculturalism.We studied two different schools and their awareness concerning intercultural approach and managing diversity . The study is concentrating on two schools in two different communities. One of the schools had a greater ethnic multiplicity than the other school, and therefore, we thought, it seemed easier for them to accept an intercultural approach and managing diversity. But that was not the whole truth.
EN SKOLA I FÖRÄNDRING : En studie av en ny åtgärd - språkregeln
Focus of this study is an examination of the Swedish school today, its transformation and complexity when also the community outside of school undergoes changes in shape of among other things a different population composition and new political ideas. More specific the aim of the study is to understand how Gustav Adolfsskolan in Landskrona, a compulsory school in south of Sweden, legitimates the language rule that is in effect in the school. It?s a relatively new measure undertaken in the school and both the problems in the school and this measure have been widely discussed in the public media. The theoretical sources of inspiration have come from Weber, Galbraith and Elias and include power relations and dynamics within social mobility when people establishes in new places.
Amfibier i nyanlagda våtmarker : En fältstudie i Laholms jordbrukslandskap
Many species of amphibians are threatened both in Sweden and globally. The causes are many and a main factor is habitat alterations which often results in populations being isolated. Changes in the agricultural landscape have among other things resulted in small water bodies being filled and dried out and that has severely affected the Swedish amphibians. Swedish amphibians are depended upon small water bodies for their reproduction. Wetlands have been constructed to reduce the impacts of the eutrophication in the Laholm bay.