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2567 Uppsatser om Electronics and Electrical technology - Sida 61 av 172

Effektiva återkopplingsverktyg för elanvändning : En studie som syftar till att identifiera utvecklingsmöjligheter för att uppnå ett mer hållbart energisystem år 2030

Feedback tools support electricity users within the Swedish residential sector to increase their knowledge of electricity and the electricity market as well as to become more aware of their electricity consumption, which in turn encourages a reduction and an increased flexibility of electricity use. The primary aim of this study is to identify and analyse how existing feedback tools can be improved, to ensure that they contribute efficiently to the achievement of the EU objectives congruent with a more sustainable energy system in 2030, emphasizing: greenhouse gas reduction, increased energy efficiency and an increased share of renewable energy. In order to reach the primary aim of this study, existing feedback tools have been identified and mapped and interviews with feedback tools providers have been conducted. The study is limited to three research areas: the practical functions of feedback tools, available technology and the use of feedback tools.The use of more efficient feedback tools will provide an increased success rate for energy management, which includes both behavioural changes and energy efficiency. According to the results from the interviews conducted for this study, an increased use and user frequency is important to utilise the energy management potential.

Robin Hood och Hemtjänsten : En förstudie om Företagshälsovårdens arbete med arbetsmiljöfrågor inom hemtjänstbranschen

Occupational Health Service (OHS) has an important role in society. It is designed to prevent illness and strengthen the health of workers. OHS operations and development are currently being studied at the School of Technology and Health at the Royal Institute of Technology in Sweden. One of the industries studied is the home maker service. During the 2010s were such employees one of the most ill groups in Sweden.This master's thesis in occupational environment development and change management focus on examining the special knowledge an OHS and its clients in one home maker service need to strengthen the workers of the industry and find out how the interaction between OHS and home maker service works and how it could be evolved.A qualitative study was conducted in a Swedish city on the basis of an organizational perspective.

Problem med att få besiktningsanmärkningar åtgärdade. Felaktiga inställningar och attityder fördyrar våra byggprojekt

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.

Arbetsgång för optimering av antal jord-bergsonderingar - med avseende på bergytans nivå inom ett område

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.

Beskrivning av systemfunktioner i kärnkraftverk med hjälp av objektorienterat modelleringsverktyg

In order to facilitate design and maintenance of such a large and complex site as a nuclear power plant, all system functions must be described in a stringent way. In the past, these descriptions consisted of text documents and logical diagrams, but today there are an increasing number of object-oriented programs available on the market which might be used for this purpose. This Master Thesis has made a closer study of one of these programs named Rational Rose. The principal of the program is to facilitate software design and development, not to create models of plants. However, using the program the same way as developing software, specifying actors then gradually extend the model with use cases, use cases diagrams etc, the same methods can be used when modelling plants.

Allan Petterssons personarkiv : Digitalt eller i pappersform?

Digitization is a concept that has become popular in terms of collections of old heritage-related material such as books, photographs and paper documents. This work is a study of the Swedish composer Allan Pettersson (1911?1980) and his personal archive stored at Section for Manuscripts and Music at Uppsala University Library. My issues are What happens to the archive of the digitized? Will there be a "new" archive of the digitized? What guidelines are Uppsala University Library using for their digitizing and how do they look? What will be the result after digitization? What about copyright and the material? Allan Pettersson's personal papers consist a large collection of sketches of musical notes, newspaper clippings and concert programs.

Hotutvärderare för luftvärn : automatiska algoritmer för beslutsstöd och beslutsfattande

Med dagens snabba datorer och omfattande informationssystem kan automatiskaalgoritmer för beslutsstöd i komplicerade situationer konstrueras. I luftvärnet finns detredan s k hotutvärderare som har denna funktionalitet. I föreliggande uppsats ges enöverblick över den stridssituation dessa hotutvärderare skall hantera. Uppsatsen analyserarvidare vilka matematiska metoder som är lämpliga att använda för detta ändamål och hurde är kopplade till rådande doktrin..

Musikskolecheck. En undersökning om den nya musikskolechecken i Nacka kommun

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.

Pixar och dess metoder. En gestaltning av Emil i Lönneberga

Denna undersökning omfattar hur man kan applicera Pixars metoder och tekniker av en grupp bestående av tre studenter vid skapandet av en animerad kortfilm. Utifrån resultaten av vår forskning kring metoder, tekniker och analyser har vi skapat en animerad kortfilm. Kortfilmen är en samtida tolkning av Astrid Lindgrens kända barnbok Emil i Lönneberga. Filmen ämnar att belysa olika samhällsproblem som kan kopplas till den klassiska boken.

Nonvisual Society

The exclusion of visually impaired from the information flow presented to us through signs was what led me into this project. With a growing amount of information being presented to us on signs and digital information surface the need of communicating this information in a way that could be read by visually impaired is evident. Looking into different ways of communication, my goal was to create something that filled the need of the visually impaired without branding them as disabled. Having a close relative with bad eyesight is became evident on how much it limited her in her everyday life, not being able to navigate herself without the support of her husband. Through interviews with her and others with varying diagnoses I reached an insight in their situation. To my surprise they still favored a visual form of communication before an auditory or tactile form, because it?s easy to survey and quick to interpret.

Elektrisk nervstimulering som behandlingsmetod vid kroniskt bensår: en litteraturöversikt

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.

Industriell produktion av loggia - en studie om loggiarum som alternativ till inglasad balkong

AbstractIntense competition in the building industry has forced building companies to develop highly efficient and optimised building solutions. This project, with a loggia that works both as an extended living room and a glazed balcony offers a highly economic viable alternative to standard balconies. This alternative is likely to attract build master since the area of the loggia will be part of the apartment area, i.e. included in the area for rent..

Analys av vattenkvalitet i ett kommunalt badhus

Bath has been a part of human history for a long time. Today bathing/swimming inmunicipal pools is for people of all ages and it is possible to take swimming courses,exercise or enjoy recreation. The municipal indoor pool of Hogdalen in Sweden wasbuild in the sixties and has had problems with high levels of heterotrophic bacteria. Thefacility has two larger pools, one adventure park for young kids, two smaller bath tubsand a jacuzzi. To improve water quality UV light and coal filter were installed inOctober 2009 to the already existing purification system.

Skolverkets kursplaner - blev det som det var tänkt? En undersökning om grundskolans musikundervisning

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.

Lagafors CPU : Chemical Production Unit

This dissertation is performed at the request of Lagafors AB who develops and manufactures stationery and mobile hygiene solutions for companies in the food- processing industry. The objective of this dissertation is to develop and construct a new, cost efficient cleaning station based on an innovative technology.The technique is based on serially connected dosing pumps which allow the customer to work with concentrated detergents. This leads to serious reduction in the clients use expenses. Two units have been developed with this technique, one that is stationary and one that is mobile.The dissertation has led to good results which resulted in the sale of the first stationary unit of the Lagafors CPU before the end of this dissertation. .

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