Sökresultat:
142 Uppsatser om Mineral wool - Sida 4 av 10
Att förebygga osteoporos i ett tidigt skede
Bakgrund: Osteoporos har under de senaste decennierna utvecklats till en av de stora folksjukdomarna. I Sverige drabbas cirka 70 000 människor av osteoporosrelaterade frakturer varje år och av dessa är det främst kvinnor som drabbas. Risken för att en svensk kvinna någon gång under sin livstid skall drabbas av en osteoporosrelaterad fraktur är 50 %. Hur snabbt en kvinna förlorar benmassan samt hur stor benmassa hon har från början är avgörande för om hon kommer att drabbas av osteoporos och därför är prevention i ett tidigt skede viktigt. Syfte: Syftet med litteraturstudien var att belysa preventiva åtgärder för premenopausala kvinnor som kan förebygga primär osteoporos.
Grundvattensänkning till följd av järnvägstunnel genom Hallandsås : miljökonsekvenser relaterade till förändrad kväveomsättning i mark
This thesis was carried out to give some background information to a report of SLU (Swedish University of Agricultural Sciences) for the Swedish National Rail Administration (Banverket). The requested information was to provide basic data for an environmental impact assessment of the construction of the tunnel through Hallandsås. The aim with the thesis work was to discuss and quantify the leaching of nitrate and the emission of nitrous oxide from the soil at the groundwater level established through the tunnel project. The nitrogen related processes that could be affected were described and discussed. The different areas where a decreased groundwater level can cause changes in the nitrogen processes are the wet and moist areas.
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.
EU-stöd inom fårproduktion på Öland jämfört med Småland/fastlandet :
The Sheep is the oldest livestock, and has been in Sweden for 4-5000 years. Thanks to that you can obtain skin, as well wool and meat. Therefore it was an important animal. Sheep production has increased, strongly lately due to the pasture support.
The purpose of this paper is to find out what kind of different EU-subsidies you can get and to compare the subsidies in Öland and the main land.
Sheeps are very good conservationist with grass, bushes and herbs, because of different grazing lands hardness and growth is it important to control the pasturage strain. A good way to regulate this is to have different enclosed pasture to switch between.
I have been studying the different EU-subsidies.
Uppfyller lagstiftningen kaninens beteendebehov?
Rabbits today are used for different reasons. They are often held as pet rabbits but they also can be found at zoos, in laboratories and as a producing animal where their meat, fur or wool are used.
All rabbits in Sweden are protected by the Swedish animal welfare legislation. For rabbits held as pets, in laboratories or at zoos there are more detailed rules or regulations that defines for example how much space the rabbit must have or how the cage should be enriched. For rabbits in the production there is no detailed legislation, which is a problem because their welfare could be hard to secure when the producers do not have any guidelines to follow.
Rabbits are social animals and therefore they should have the company from either one other rabbit, or from the owner.
Effekten på nedbrytningen av rötter vid tillförsel av ammonium sulfat i en granskog i sydvästra Sverige
Decomposition of organic matter is a critical process in the ecosystem, which involves many essential biotic and physical parts. Decomposition is therefore an important process both above and below ground. The rate of decomposition is dependent of many environmental factors for example: pH, moisture and supply of oxygen. The decomposition can therefore be affected by large scaled environmental influences, such as acidification and climatic changes. The root litter in the forest is in different ways affected by acidification, liming and manuering.
De dolda sjukdomarna : osteoporos och artros kvarteret Banken 1 i Visby
This Bachelor paper deals with skeletal diseases like osteoporosis and osteoarthritis. 24 medieval individuals from the block Banken 1 in Visby, Gotland were chosen for an osteological analysis. Osteoporosis affects the bone with low bone mineral density and can lead to possible fractures and Osteoarthritis is a degenerative joint disease. A DEXA reading was done at Dr. Roland Alvarssons Doctorial practice in Visby and the results from the DEXA reading showed that none of the individuals suffered from osteoporosis, but one suffered from osteopenia.
En studie om glimmers förmåga att absorbera och kvarhålla fukt genom kapillära krafter i jämförelse med finfraktion utan glimmer samt glimmers kohesiva egenskaper
Föreliggande arbete har syftat till att dels undersöka glimmers förmåga att absorbera och kvarhålla fukt genom kapillära krafter i jämförelse med finfraktion utan glimmer, och dels att studera glimmers kohesiva egenskaper. Även en litteraturstudie har genomförts med inriktning att belysa den påverkan som glimmer har på bergmaterialegenskaperna och vilka problem det medför i byggkonstruktioner. Fyra olika provmaterial av fraktioner mellan <0,063-2,0 mm med varierande glimmerhalt har studerats med avseende på kohesion, absorptionsegenskaper samt förmåga att kvarhålla fukt. den specifika vattenabsorptionen (mg vatten/1 g prov) har beräknats och volymförändringar vid vattenmättning har registrerats. undersökningens resultat indikerar stark att andelen fri glimmer i finfraktion har stort inflytande vad gäller magasinering av fukt.
På jakt efter den produkt som flytt - en studie om uppskjuten produktlansering och dess effekter
Many product launches are postponed today, however very little research regarding to customer responses to such events has been carried out. The purpose of this paper is to investigate how people react to a postponed product launch. An experimental study of responses to a postponed launch of a mobile phone, a mineral water and a music album is used to investigate customer reactions. The respondents exposed to the postponed launch showed a higher value of reactance. This reactance affects the attitude, purchase intention and perceived quality of the product in a negative way.
Word of Nextopia - en djupare förståelse av Nextopia och hur det påverkar Word of mouth
The purpose of this study is to further develop the understanding of Nextopia, the belief that the next product will always be better, and the effects it has on Word of mouth, both oral (WOM) and electronic (eWOM), and investigate possible causes of this effect. This has been made through an experimental study of responses to two mineral water ads, with a manipulated time frame. First, this thesis supports the fact that there is a general Nextopia-effect on customers being exposed to a future product, which makes them evaluating the product higher in terms of feelings, attitude and intention. Further this study shows that there is also a Nextopia-effect on WOM and eWOM, by customers being more likely to recommend a future product rather than a current one. This propensity to recommend the product also has a relationship with responsibility, which correlates much stronger with WOM than eWOM.
Grön marktäckning i ekologisk vitkålsodling
I detta arbete undersöks huruvida olika artsammansättningar i grön marktäckning påverkar odlingsresultatet vad gäller avkastning, kväve (N)-förlust och ogräsförekomst. Främst vit-klöver (Trifolium repens) men även rödklöver (Trifolium pratense L.) har sådana egenska-per att det bryts ned snabbare samt innehåller mer N än timotej (Phleum pratense).
År 2001 genomfördes ett fältförsök med grön marktäckning i ekologisk odling av vitkål (Brassica oleracea var. alba). Tre olika artblandningar användes, de bestod av: 60% röd-klöver + 40% timotej (1), 32% vitklöver + 28% rödklöver + 40% timotej (2), samt 75% timotej + 10% rödklöver + 15% övrigt (3). N-innehållet var 193, 218 respektive 134 kg/ ha.
Ebbas klänning Uppmätning och analys som källa till information i kombination med historisk undersökning
This study focuses on costume as a source of information. By making a case study of an 1880's dress itaims to explore the conservators potential as an investigator and conveyor of the information containedin a costume. Further explanation of this role is made by reference to several statements made by wellknown textile conservators. The paper also explores the different words used to make a new version ofa preserved or inexistant garment, gives an extensive presentation of taking patterns and an insight tothe other methods used for analysing costumes. The case study consists of an investigation of the dressconstruction, during which a pattern is taken, and a literature study of the contemporary fashion, theowner of the dress and the maker of the dress.
Malmmineralogisk undersökning av Pb-, Zn-, Cu- och Ag-förande kvartsgångar i Värmskogsområdet, mellersta Värmland
AbstractPolymetallic (Pb-Zn-Cu-Ag-Au-Sb-As-Bi-Cd-Te-Se-Ge?) quartz veins occur in an area from Eidsvoll in southeastern Norway to west of LakeVänern in southwestern Sweden. They most likely formed during the waning stage of the c. 1 Ga Sveconorwegian orogeny. In Värmskog parish, Värmland county, several mineralized quartz veins of different types are known.
Mineraliseringar utmed REE-linjen i sydvästra Bergslagen
This paper briefly summarizes Bergslagen as a bedrock province in order to give background to the genesis and presence of REE-bearing minerals (short for Rare Earth Elements) in the region. These mineralizations mainly occur along the REE-line, a line aproximately a hundred kilometers in length between Norberg in the north and Nora in the south with a width of a few kilometers. Situated in the southwest of Bergslagen it is currently one of only a few places in Sweden where REE-bearing iron oxide mineralizations are potentially economically viable for mining. Ore microscopy has been conducted in order to characterize an ore sample from Myrbacksfältet, one of few sulphide rich iron oxide mineralizations within the REE-line. Additionally, an electron microscope analysis of a sample from Stålklockan, a suspected REE-bearing mineralization also within the REE-line was confirmed by EDS (short for Energy Dispersive Spectrum) analysis.
Effekter av en mer effektiv skuthantering: En undersökning av skuthantering - DMAB
Arbetet med denna studie gick ut på att inventera vilka metoder som använts i Dannemora gruva av Dannemora Mineral AB (DMAB) gällande skuthanteringen under jord och ovan jord samt belysa och ge förslag på hur skuthanteringen skulle kunna effektiviseras och eventuellt generera en ökad mängd färdiga produkter och tillika högre intäkter för företaget.Med en mer effektiv skuthantering med fokus på separering av gråberg och malm, både under och ovan jord, hade DMAB erhållit mer färdiga produkter och därmed högre intäkter. Uppsatsens resultat motiverar att en förstudie inleds i företaget. Tillkomsten av nya arbetsmoment innebär naturligtvis en kostnad men den torde vara liten och högst försvarlig i sammanhanget men måste utredas i den rekommenderade förstudien. Det handlar också om andra besparingsaspekter som exempelvis minskade transport- och hanteringskostnader och i förlängningen även miljöbesparing, vilka dock ej är medtagna i den här studien..