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.

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.

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.

Kroniska bensår är en både tids- och kostnadskrävande åkomma för samhället och ger sänkt livskvalitet för de drabbade. Läkningstiden kan variera från några månader upp till flera decennier och det finns inte i dag någon given behandlingsmetod. Elektrisk nervstimulering är en vedertagen metod för smärtlindring som i viss utsträckning även används med syfte att förbättra sårläkning vid kroniska bensår. Kunskaperna om dess användbarhet är dock dåligt spridd bland vård- och rehabpersonal. Syftet var att skapa en överblick av den publicerade litteraturen gällande elektrisk nervstimulering som kompletterande behandling vid kronsikt bensår.

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.

How can we plan so that smallscale industry and businesses can become an integrated part of the city? The densifying process in search of new housing areas that is going on in most swedish cities threatens to undermine the diversity and complex make up of central parts of many cities. To sustain industrial activities in central locations is critical to this diversity. This thesis discusses how to reach a sustainable city planning with Bellevue, a small industry and business area in central Gothenburg, as an example..

Sweden will, in accordance with the EU-directive 2003/54/EC, move from post-regulating the electricity power grid-tariffs by using a fictitious grid, to a regulation in advance which uses the actual power grid as a starting point. For this purpose a component breakdown of the grid needs to be made to determine the value of the network and by that the tariff price that is reasonable for the network business in question to charge.The primary breakdown criteria is the voltage-level and type of region. Voltage-level is crucial for the cost and complexity of a grid-part, because the higher the voltagelevel is, there are more and stricter laws and rules to follow. This work is limited to the distributionpart of the grid, in other words voltage levels from 20 kV and below.The type of region is crucial to the type of components you can and want to use. In city environments both overhead-wires and independent substations are undesirable for both practical, safety and aesthetic reasons.

European cities of today are under the challenge to find ways to stay competitive and flourish in a rapidly changing world, where the old patterns of centrality and periphery not necessarily holds true. New and improved communication networks, a changed political geography in Europe, and the globalisation of not only the financial and industrial markets but also to a certain extent the globalisation of people, have all led to great challenges for cities and regions.In a changed spatial reality the classic monocentric models are challenged by newer models of urbanisation. The polycentric urban region is one such model which has been used to describe urban regions like the Randstad in the Netherlands and the Rhein-Ruhr region in Germany. Regions which lack the single dominant central city of the monocentric models of old, and instead shows a high degree of more equal-sized and sometimes more specialised cities in regional cooperation. The polycentric urban region is in that aspect a possible model for how other urbanised regions in Europe may act to be able to position themselves as attractive urban regions and regional hubs in the European urban network.Polycentric urban regions are not a universal solution, though.

Syftet med undersökningen är ta reda på vilken förståelse elever från årskurs 5 har för ljuskällans tekniska utveckling. Syftet har uppnåtts med hjälp av frågeställningarnaVilken kunskap visar elever i årskurs 5 om ljuskällans tekniska utveckling? och Vilken kunskap visar elever i årskurs 5 om glöd- och lågenergiglödlampan som komponent i ett tekniskt system? Metoden som valts är kvalitativa intervjuer och innefattar totalt tio olika djupgående intervjuer. Under intervjuerna har eleverna fått placera fem olika ljuskällor i historisk ordning, med hjälp av dessa bilder har de fått beskriva den tekniska utvecklingen för att tillslut hamna på elsystemet. Resultatet visar att eleverna har mycket god kunskap om ljuskällans tekniska utveckling och god kunskap om systemet bakom glöd- och lågenergiglödlampan.

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.

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.

The EU guarantees the free movement of persons. The citizens of the EU Member States have the right to move freely without barriers within the EU borders and this result in an integration of the peoples in Europe. The integration result in several international family relationships. It is not unusual in the present situation that families have international relations. For example, spouses in a married couple may have different nationality.

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.

Syftet med denna studie är att undersöka hur två skolor integrerar barn som nyss kommit till Sverige. Vi gjorde en kvalitativ intervjustudie, där två skolor besöktes. På båda skolorna intervjuades en rektor och en pedagog. Dessa två skolor valdes ut på grund av deras mångfald av invandrarbarn. Den ena skolan har ett större antal barn med annan kultur än den andra skolan som har mesta dels svenska barn.

Vårt syfte är att undersöka om elevers matematiska språk och begrepp gynnas av en ämnesintegration mellan rytmik och matematik. För att kunna besvara våra frågeställningar har vi gjort klassrumsobservationer, elevenkäter, intervjuat fem elever och två pedagoger. Resultatet av vår undersökning visar att pedagogernas språkliga medvetenhet reflekteras i deras undervisning. Pedagogerna använder sig av ett tydligt och korrekt matematiskt språk. Matematiska ord och begrepp tydligt synliggörs i ett för eleverna verklighetsförankrat sammanhang, genom ämnesintegration.