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623 Uppsatser om Fuel cell - Sida 17 av 42
Development of a real-time RT-PCR for quantification of bovine TLR4 mRNA and evaluation of its use during a BRSV vaccine challenge
The Bovine respiratory syncytial virus (BRSV) causes bronchiolitis and interstitial pneumonia, predominantly in calves, and is a major cause of bovine respiratory disease worldwide. In humans, BRSV is paralleled by the closely related Human respiratory syncytial virus (HRSV), an important cause of respiratory disease, most severe in infants.The clinical signs and pathology during RSV infection is caused, not only by the direct effects of viral replication, but also by the response of the host immune system. The immunopathology of RSV has long obfuscated our understanding of the disease, and development of effective treatment and vaccines will be very difficult until greater knowledge is gained.One of the components of the immune system that has come into focus in RSV research the last few years, is the Toll-like receptor 4 (TLR4). The TLR4 receptor is well known as the receptor that binds lipopolysaccaride (LPS), and initiates the host response to bacterial infection. Recently, it has been shown that the fusion protein of RSV also interacts with, and up-regulates the expression of, the TLR4 receptor.
Livscykelanalys: Pelletspanna från kvänum energi
This study will identify the environmental impact in terms of carbon dioxide for a boiler house on behalf of Kvänum energi. The boiler central consists of a main building, which in turn contains multiple components such as boilers, pipes, etc, the boiler central uses pellets fuel. It also includes a silo and an ash container. The total weight of the boiler is about 63 tons. Each boiler has an output of 600 kW; the central includes three boilers with room for a fourth if necessary.
Det växer så det knakar! Vad påverkar konsumentens val av återhämtningstillskott
Syfte Vi har för avsikt att öka förståelsen för hur valet av återhämtningstillskott styrs av konsumentens beteende och analysera i vilken grad olika faktorer påverkar detta val. Vår förhoppning är att denna insikt skall kunna bidra till att minska det informationsbehov som företag i denna bransch ställs inför där de idag kan ha bristfällig information. Metod För att besvara de frågeställningar som uppkommit under problemdiskussionen har vi använt oss av både primär och sekundär data. Vi har utgått från den sekundärdata vi insamlat för att få en teoretisk bas att stå på. Den primärdata vi insamlat baserar på kvalitativa djupintervjuer och samtal med sakkunniga.
Hållbara uppvärmningsalternativ för Grinda Wärdshus : En studie om uppvärmning med pellets och flis
This report is a bachelor's thesis of two students from the Energy and Environment degree at KTH Stockholm. Grinda is an island situated Stockholm archipelago. Skärgårdsstiftelsen is landowners and manages the area. Grinda Wärdshus, a guest house located in the island, currently uses an oil-fired boiler as a heating system. The aim of this thesis is to investigate whether wood chips or pellets is, from a sustainability standpoint, a suitable heating method for the guest house.
Fukthalt i GROT - påverkande faktorer :
This study was carried out at the request of the bio energy company Naturbränsle. The company handles annually 750 000 m3 of chips from logging residues from a large area, from Östergötland in the south to Härjedalen in the north. In that area, about 50 bio fuel plants are customers. When Naturbränsle deliver chips from logging residues to their customers, the moisture content varies from 30 % to 60 %. The aim of the study was to sort out the affecting factors on the moisture content in the chips during handling and storage processes.
Invandrares upplevelser av diskriminering och den politiska diskursen om invandrare i Sverige mellan 1960-2009
Aim: This paper aims to produce a serviced office concept adjusted to Statens fastighetsverk. The concept will make SFV:s properties more attractive for renting. Method: Information has been collected from interviews with 13 different serviced office companies, one serviced office agent and eleven government authorities. Also litterateur, reports and internet have been used in gathering information.I will use following questions:¨ How is the serviced office concept designed?¨ Which customer segment should SFV direct to and what need does the segment have?¨ How shall a marketing plan look like for the concept?¨ How should a concept designed for SFV look like? Result & Conclusions: Serviced office space is a company that letting functional workspace with access to shared facilities e.g. reception, office machines, internet, phone and more.
Use of feline TK1 as a biomarker in disease monitoring
Serum thymidine kinase 1 (TK1) activity is used as a tumor marker in disease monitoring in veterinary and human medicine. TK1, an intracellular enzyme, is involved in a salvage pathway of DNA precursor synthesis.
TK1 is used in DNA precursor production by catalyzing the transfer of the gamma-phosphate-group from a phosphate-donor to the 5?- hydroxyl-group of thymidine forming thymidine-monophosphate. Nucleoside monophosphosphates are finally converted into thymidine-triphosphates. TK1 activity significantly rises in the G1 and the S phase of the cell cycle.
Modellering av en panna med rörlig rost :
The aim of this master thesis was to create a dynamic model for the processes in a solid fuel boiler of the moving grate type. Another aim with the model was to keep it as simple as possible but still able to catch the dynamics of the processes in the bedplate of the boiler. The creation of the model had its origin from drying and combustion equations used in earlier modeling work of boilers. The represented model has been used to simulate different kinds of disturbances in a boiler and different ways to control the boiler. These tests show that controlling a number of parameters in the bed of the boiler is an effective way to keep the grate stable during disturbances.
Undersökning av deponerat ferrokromstoft : Utvärdering av ny behandlingsmetod
The production of ferrochromium alloys at Vargön Alloys AB contributes to formation of unwanted ferrochromium dust, which contains toxic Cr(VI). The dust is since summer 2005 treated with an iron-sulphate solution to reduce Cr(VI) to the non-toxic Cr(III). A year later the treatment technique was improved and disposal occurs in cells on the landfill. The cells can be up to 300 m3 and the edges can be made out of fro example concrete. Tests are conducted on the treated dust when it is disposed.
Myndighetscentret ? En kvalitativ studie av myndigheters lokalbehov och en utveckling av ett kontorshotellskoncept
Aim: This paper aims to produce a serviced office concept adjusted to Statens fastighetsverk. The concept will make SFV:s properties more attractive for renting. Method: Information has been collected from interviews with 13 different serviced office companies, one serviced office agent and eleven government authorities. Also litterateur, reports and internet have been used in gathering information.I will use following questions:¨ How is the serviced office concept designed?¨ Which customer segment should SFV direct to and what need does the segment have?¨ How shall a marketing plan look like for the concept?¨ How should a concept designed for SFV look like? Result & Conclusions: Serviced office space is a company that letting functional workspace with access to shared facilities e.g. reception, office machines, internet, phone and more.
Elecronic Wallet - Utveckling av en digital plånbok sett ur ett användarperspektiv
This essay is a product of our examination work on candidate level in Interaction Design. The
aim in this project was to design a digital wallet integrated into a cellular phone and make it
as an electronic payment tool. In our project the goal has been to create a digital wallet not
just for payment, but also develop it into a complete digital wallet, replacing visa,
membership card, student cards, id card and receipt. Our ambition is to take care of current
qualities of today's wallet and improve where it is possible so that can be replaceable with
the digital wallet..
Optimization of Burner Kiln 7, Cementa Slite
In this report focus is put on the combustion process at a cement plant. Combustion is the
heart of the cement making process and absolutely crucial to have under full control and well
optimized.
The fuel is put into the process through a burner pipe and this burner pipe is modified to
reach a more efficient combustion. The primary target is to enable burning of heterogeneous
alternative fuels and increase the production level. Other positive effects from this type of
optimization is lowered specific fuel consumption and lowered CO2 emissions.
A redundant burner is chosen for the project and overall the project steps are the following:
1. Installing a Jet air nozzle ring in a way so it can move both axially and radially due to
temperature changes.
2.
Samspel, etablering och koppling mellan naturgas och biogas
Sweden has a natural gas grid extending along the west coast, from Trelleborg to Stenungsund. There are also several smaller local networks where a planned natural gas pipeline from Skutskär to Hofors prompted the need for a comprehensive study. This study examines the linkages that exist in terms of technology and market of natural gas and biogas in Sweden. Sweden has set high targets for the future with ambition to become independent of coal and oil as energy sources. Since 1985, a part of the solution has been import of Danish natural gas.
Framgångsfaktorer för rundvirkesåkerier i Mellansverige :
Generally, the economic health of Swedish roundwood truck transport companies has not been good. Profitability is important for maintaining the stability in the transport business, which is a condition for long-term transport planning in the forestry sector.
The scope of this study was to identify probable factors influencing the profitability of roundwood truck transport companies and quantify the influence of these factors on economic results.
The study was carried out at a major roundwood truck transport organisation in mid-Sweden and was implemented in four steps. In the first step economic results from the haulage contractors were collected and a random sample was taken from accounted net margin for the account year 2005/2006. In the second step hauliers were interviewed to identify probable success factors. At the third step data for identified factors were gathered through a questionnaire.
Demand and economic potential for working horses in Swedish municipalities
The aim of my study is to answer the question whether there is a potential for services by working horses in the Swedish municipalities. The Swedish University for Agricultural Sciences (SLU) and Swedish Farmers Union (LRF) has started a cooperation called Climate School (Klimatskolan), with the purpose to increase knowledge in environmental and climate related issues in context of agriculture. This Master thesis is in the framework of the Climate School.Global warming is a problem that gets much attention today. Global warming and climate change are two subjects that are very much in focus on the political agenda. The municipalities of Sweden have a big responsibility concerning environmental work and to develop their own environmental thinking.