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1466 Uppsatser om Electrical Engineering Programme - Sida 46 av 98
Brokonstruktion i Tibet- Ett led i att förbättra infrastrukturen i området Sichuan
The use of Power Line Communication, PLC, as a communication solution for Automated Meter Reading, AMR, is popular by utilities in Sweden and other parts of the world due to demands of accurate and fast meter reading. However the use of the electrical grid as a communication medium is complex and sometimes problematic. This report handles some of the issues and problems that are important to understand when using the grid as a communications medium. Focus is mainly on investigating high frequency distortion in the Kristianstad power grid own by C4energi caused by a frequency converter. Measurements on site are done to investigate signal damping in the grid, different configurations for the frequency converter and signal strength of the PLC-system.
Stereotyper i den virtuella världen. Hur visuella intryck påverkar deltagares uppfattningar av virtuella agenter
The purpose of this study is to examine how participants perceive virtual agents shown on a computer display. In particular, it is explored to what extent participants transfer gender and attraction stereotypes that are commonly applied in the physical world to virtual agents. Previous related studies have often explored only text or voice interfaces, without any visually appearing agents, and here indeed found evidence for a transfer of gender stereotypes. Our hypothesis was that the addition of a visual agent interface would reinforce this effect. The results support our hypothesis that participants transfer human gender and attraction stereotypes onto virtual agents, as well as that these processes are affected by the visual representations of the agents..
KOSMISK STRÅLNING OCH FLYGNING :Finns skäl att oroa sig för den ökade dosen av joniserande strålning man utsätts för under flygning?
Joniserande strålning, i dagligt tal oegentligt benämnd radioaktiv strålning, förekommer naturligt och utgör en hälsofara för allt organiskt liv. De viktigaste källorna till sådan strålning är radon som finns i varierande mängd i bergrunden, sådant radioaktivt material som finns i all materia (t.ex. Kol-14, Kalium-40), strålning som uppkommer i samband med mänsklig aktivitet (medicinska tillämpningar, kärnkraft, kärnvapenprov) och den kosmiska strålningen. Av dessa ökar den kosmiska strålningen med ökad höjd över havsytan, men samtidigt avtar den sammanlagda stråldosen från de andra källorna något. Sammantaget sker dock en viss ökning av stråldosen med ökande höjd.
Hur upplever instrumentallärarna på Kulturskolan sin arbetssituation?
AbstractThe future of ethanol is depending on good solutions for the production. ENA energy power plant produces electrical power and district heating by heating biofuel. By building an integrated bioenergy plant surplus steam could be used to produce ethanol as fuel to vehicle.This would mean that ethanol is produced renewable energy and the energy for the process derives from the surplus of power. ENA energy, MDH (the University of Mälardalen) and the energy authority has initiated a research project were different bioenergy combinations integrate with existing power plant. As a part of the project which size an integrated factory should be to gain the best efficiency for the plant was investigated. Consideration will be taken to the cost of the production in order to be competitive to the price of imported ethanol. Etanolens framtid vilar på bra lösningar för framställning. I ENA energi kraftverk i Enköping produceras el och fjärrvärme genom eldning av biobränsle. Genom att bygga ett integrerat bioenergikraftverk där skulle man kunna använda överskottsånga till att framställa etanol som fordonsbränsle.
Utvärdering av ett Bränslecellsdrivet Flygplan.
With the increases in fuel costs due to the depletion of the world oil reserves and the increase of greenhouse gasses as a consequence to using oil as a fuel many companies are looking to new and innovative ways to power their aircraft. One of these new ways to power an aircraft is using fuel cells powered using hydrogen and oxygen, thus producing nothing but water vapour and small amounts of nitrogen dioxide as well as trace amounts of other emissions. Both Boeing (1) and Politecnico di Torino (2) have shown that it is possible to build an all-electric aircraft powered by fuel cells. Both flights used small, two-seater aircraft and a constant between them was the loss of the co-pilot seat due to weight and lack of space. As this paper will deal with a commercial aircraft a primary concern is the cargo and passenger capacity and whatever impact switching propulsion system has on these.
System för statusbedömning av byggnader. Förslag innehållande förundersökning och konceptbeskrivning
The use of Power Line Communication, PLC, as a communication solution for Automated Meter Reading, AMR, is popular by utilities in Sweden and other parts of the world due to demands of accurate and fast meter reading. However the use of the electrical grid as a communication medium is complex and sometimes problematic. This report handles some of the issues and problems that are important to understand when using the grid as a communications medium. Focus is mainly on investigating high frequency distortion in the Kristianstad power grid own by C4energi caused by a frequency converter. Measurements on site are done to investigate signal damping in the grid, different configurations for the frequency converter and signal strength of the PLC-system.
Optimerade klimatlösningar för köpcenter: En parameterstudie i IDA Indoor Climate and Energy
The use of Power Line Communication, PLC, as a communication solution for Automated Meter Reading, AMR, is popular by utilities in Sweden and other parts of the world due to demands of accurate and fast meter reading. However the use of the electrical grid as a communication medium is complex and sometimes problematic. This report handles some of the issues and problems that are important to understand when using the grid as a communications medium. Focus is mainly on investigating high frequency distortion in the Kristianstad power grid own by C4energi caused by a frequency converter. Measurements on site are done to investigate signal damping in the grid, different configurations for the frequency converter and signal strength of the PLC-system.
Marknadsanalys - En jämförande studie mellan hyresrättslägenheter, bostadsrättslägenheter och ägarlägenhetsfastigheter
The use of Power Line Communication, PLC, as a communication solution for Automated Meter Reading, AMR, is popular by utilities in Sweden and other parts of the world due to demands of accurate and fast meter reading. However the use of the electrical grid as a communication medium is complex and sometimes problematic. This report handles some of the issues and problems that are important to understand when using the grid as a communications medium. Focus is mainly on investigating high frequency distortion in the Kristianstad power grid own by C4energi caused by a frequency converter. Measurements on site are done to investigate signal damping in the grid, different configurations for the frequency converter and signal strength of the PLC-system.
I kroppen bor känslan, klangen och tanken. Tre pedagogers syn på interpretation
AbstractThe future of ethanol is depending on good solutions for the production. ENA energy power plant produces electrical power and district heating by heating biofuel. By building an integrated bioenergy plant surplus steam could be used to produce ethanol as fuel to vehicle.This would mean that ethanol is produced renewable energy and the energy for the process derives from the surplus of power. ENA energy, MDH (the University of Mälardalen) and the energy authority has initiated a research project were different bioenergy combinations integrate with existing power plant. As a part of the project which size an integrated factory should be to gain the best efficiency for the plant was investigated. Consideration will be taken to the cost of the production in order to be competitive to the price of imported ethanol. Etanolens framtid vilar på bra lösningar för framställning. I ENA energi kraftverk i Enköping produceras el och fjärrvärme genom eldning av biobränsle. Genom att bygga ett integrerat bioenergikraftverk där skulle man kunna använda överskottsånga till att framställa etanol som fordonsbränsle.
Fiberarmerad betong - Vidhäftning av kamstål i stålfiberarmerad betong
The use of Power Line Communication, PLC, as a communication solution for Automated Meter Reading, AMR, is popular by utilities in Sweden and other parts of the world due to demands of accurate and fast meter reading. However the use of the electrical grid as a communication medium is complex and sometimes problematic. This report handles some of the issues and problems that are important to understand when using the grid as a communications medium. Focus is mainly on investigating high frequency distortion in the Kristianstad power grid own by C4energi caused by a frequency converter. Measurements on site are done to investigate signal damping in the grid, different configurations for the frequency converter and signal strength of the PLC-system.
Restspänningar i arc-förångade (Ti(1-x)Al(x))N ytskikt
This report is the written documentation of a project work carried out at the Division of Engineering Materials at Luleå University of Technology in cooperation with Seco Tools AB. The project deals with the analysis of residual stresses in Ti-Al-N thin film grown on WC/Co cutting inserts. The composition of Al varied from 0% up to 75%. Increasing the Al content in the Ti(1-x)Alx N compound improves the compressive residual stresses even after annealing of the material. The experiments have been performed in a high temperature x-ray diffractometer (HTXRD) where the interplanar atomic spacing was determined in-situ and subsequent converted into stresses.
Chefen hos Matisse : konst för organisationer och ledarskap
My analysis consists of an in-depth study of the experience of a group of development programme participants who were exposed to the use of art and artistic work in organisation and leadership development, resulting in positive effects. My starting point is creativity as a concept according to paediatrician and psychoanalyst DW Winnicott who stresses how important playing and creativity is for us, even as an adult, for us to utilise our full potential. He believes that we have a psychological space ? a crossover area ? where the outer, objective reality and the inner, subjective reality meet. Playing, creative development and experiences occur in this space.
Chefen hos Matisse : konst för organisationer och ledarskap
My analysis consists of an in-depth study of the experience of a group of development programme participants who were exposed to the use of art and artistic work in organisation and leadership development, resulting in positive effects. My starting point is creativity as a concept according to paediatrician and psychoanalyst DW Winnicott who stresses how important playing and creativity is for us, even as an adult, for us to utilise our full potential. He believes that we have a psychological space ? a crossover area ? where the outer, objective reality and the inner, subjective reality meet. Playing, creative development and experiences occur in this space.
Brasslek och dess inverkan på barnens embouchure
AbstractThe future of ethanol is depending on good solutions for the production. ENA energy power plant produces electrical power and district heating by heating biofuel. By building an integrated bioenergy plant surplus steam could be used to produce ethanol as fuel to vehicle.This would mean that ethanol is produced renewable energy and the energy for the process derives from the surplus of power. ENA energy, MDH (the University of Mälardalen) and the energy authority has initiated a research project were different bioenergy combinations integrate with existing power plant. As a part of the project which size an integrated factory should be to gain the best efficiency for the plant was investigated. Consideration will be taken to the cost of the production in order to be competitive to the price of imported ethanol. Etanolens framtid vilar på bra lösningar för framställning. I ENA energi kraftverk i Enköping produceras el och fjärrvärme genom eldning av biobränsle. Genom att bygga ett integrerat bioenergikraftverk där skulle man kunna använda överskottsånga till att framställa etanol som fordonsbränsle.
Språktest för medborgarskap? En postkolonial läsning av debatten kring språktest.
On the third of August 2002, in the middle of the ongoing Swedish election campaign, Lars Leijonborg beeing the leader of Folkpartiet (the Peoples Party) presented the partys new intergration programme for foreign nationals. One of the proposals was to instigate a language test for all immigrants seeking to obtain Swedish citizenship. This thesis addresses the medial debate that followed the proposal in the daily press. Using discourse analysis and postcolonial theory this thesis looks into the fact that there were not unity in the wake that followed the language test proposal resulting in one medial and one popular discourse. The newspapers investigated were largely negative in their tone, whereas on the opinion pages, the view of the people seemed much more positively inclined.