For several years Uppsala University together with several companies has been involved in a WISENET project aimed at improving railway transport security. By placing a sensor system near the wheels of each wagon, the temperature of the bearings can be measured and transmitted to a collector placed centrally on the wagon. This in turn transmits the collected data to RFID receivers placed intermittently along the railway.As the signals are transmitted wirelessly, problems may occur as the antennas get dirty or coated with ice and snow. To determine the effects of these coatings, several tests were performed examining the reflection coefficient S11, the impedance Z11 and the efficiency eta of an antenna, and how they varied when various coatings were placed over the antenna. Examined coatings were ice, snow and water to determine the effects of weather, and various metal-based coatings: powdered iron both pure and partially oxidized, and iron ore granules.

The last few years a lot of media air time has been devoted to training, sports, health and weightloss on a more personal level then before. The new media arena is beeing used at its´ maximumto broadcast wievs on how we should eat, look, exercise and live. This thesis is trying to makebetter understanding on what people in general think is important when it comes to physicaltraining and motivation with the aid of digital media and IT systems. The thesis describes aworkshop that was conducted within the frames of Participatory Design and the outcome of thatworkshop. The workshop was conducted with a group of lead users (in this case instructors at avery large fitness center in Umeå, Sweden) and the main question was ?How can IT be used toachive a positive effect on physical exercise if motivation is the focus??.

Bakgrund: De senaste åren har alltmer musik börjat distribueras digitalt via Internet. Detta har framförallt skett via fildelningsnätverk men under de senaste två åren har allt fler legala tjänster växt fram. Prisnivån hos dessa tjänster är väldigt enhetlig och återförsäljarna har små marginaler på sin försäljning. Teorier påstår att Internet ger möjligheten att skära bort delar i distributionskedjan och det kan leda till lägre priser. Internet ger också ökade möjligheter att ändra priser på daglig basis.

De senaste decennierna har en rad streckkodstekniker utvecklats för att grafiskt representera digital information. Gemensamt för dessa är en strävan efter hög densitet, det vill säga kapacitet att lagra mycket data på en liten yta. Densiteten begränsas emellertid av kravet på precision vid tolkning av den digitala datan, eftersom felaktigheter i digital data kan resultera i omfattande informationsförlust.Analog information, exempelvis ljud, är däremot inte beroende av exakthet hos underliggande data i samma utsträckning. En analog ljudsignal kan beskrivas och återges approximativt, och ändå tolkas korrekt av en lyssnare. Detta faktum gör att det finns fördelar med att representera ett ljud utifrån dess analoga egenskaper.

Inre motivation är per definition en drivkraft i beteendet drivet av intresse och tillfredställelse för arbetet i sig, utan närvaron av yttre belöningar. Då monetära belöningar är väldigt utbrett och kostar företag stora summor är det av intresse att även studera hur motivation påverkas av hur arbetet i sig ser ut.Syftet med denna studie är att med ett kvantitativt förhållningssätt beskriva och analysera vilka dimensioner i arbetet och dess miljö som predicerar inre motivation.De prediktorer som utifrån tidigare teori valts ut är tron på sin egen kompetens, tillhörighet, autonomi, feedback, personlig utveckling och arbetets meningsfullhet. För att besvara syftet har en enkät delats ut till 211 anställda inom organisationen Skandia Advise.Statistiska analyser av resultatet visar att inre motivation till 25 % prediceras av de sex dimensionerna tillsammans. Enbart tron på sin egen kompetens och personlig utveckling är säkerställda som enskilda prediktorer för inre motivation inom Skandia Advise vilket bör tas under beaktning i ett nytt belöningssystem..

Due to global climate change and the rising levels of greenhouse gases (GHG) in the atmosphere, the interest for seeking solutions for mitigation has increased. While much attention has been directed towards technical solutions such as carbon capture and storage (CCS), biogenic carbon sinks has also garnered significant attention. Previous studies have shown that coastal ecosystems such as seagrass meadows and mangroves have a much greater capacity for storing carbon (C) compared to terrestrial ecosystems. That raises the question if other coastal ecosystems, such as coastal wetland forests, that previously haven?t been considered as blue carbon habitats also contribute to coastal carbon sink capacity.

De senaste årtiondena har det hänt mycket inom digital teknik i vårt samhälle och människan har mer eller mindre gjort sig beroende av dem. Det talas även om att små barn måste lära sig hantera digitala verktyg och många förskolor runt om i vårt land har nu infört surfplattor till sina avdelningar, men det finns delade meningar angående hur och när och om surfplattan används i förskolan. Bakgrunden till undersökningen kom genom att jag upptäckte dessa  splittrade meningar i användandet av digitala verktyg. Denna kvantitativa undersökning syftar till att få en bild över hur användandet av surfplattan i förskolans verksamhet ser ut i dagsläget.Undersökningen har gjorts med hjälp av enkäter som skickats ut via mail till personal på förskolor runt om i landet. Studien utgår ifrån ett sociokulturellt perspektiv på barns utveckling och samhällets struktur. Resultatet visar att de som idag har tillgång till surfplattan har en positiv syn på användandet och den används till stor del på ett pedagogiskt sätt men samtidigt också som tidsfördriv..

Examensarbetet handlade om att ta fram ett användarvänligt gränssnitt för digital-tv över IP, detta gränssnitt skulle fungera både på en set-top box och på en dator. En set-top box är en mottagare som tar emot en digital kanal och gör om den så den kan visas på en analog tv. Det här gränssnittet skulle också ha ett antal tjänster och vara baserat på HTML. Användargränssnittet skulle ersätta ett så kallat middleware. Detta middleware är länken mellan maskin och människa.

Uppsatsen innehåller en beskrivning av research och process i mitt examensarbete. Projektet är en digital, interaktiv värld där man möts av symboler vanliga i drömmar, sagor och myter..

The purpose of this thesis work was to develop an automatic fault detection system for surveillance of bearing temperature in hydropower turbines. The parameters used except the bearing temperature were cooling water temperature and cooling water flow. A simple static model based on data sampled every minute was developed to estimate the bearing temperature. Then a detector for detection of change in bearing temperature based on the CUSUM-algorithm was designed. Since the amount of data was very small the developed model was too uncertain to be used in a working system.The designed fault detection system showed to work well for the available data.

In the middle of the 19th century was Calluna heath the major nature type in Halland, but the remaining parts today is only 1 500 hectares which is a 99 % decrease of the Calluna heath mainly due to an increase in forest plantations and arable fields. I have made a quantitative study how the Calluna heath of Grönabur & Sandsjöbacka has changed between 1841 and 2005 and why it didn?t disappear in the same manner, as it did in other parts of Halland. The studying of original sources as historical maps, literature and by doing field visits has been significant for the final result. The main reason for the different development of the Calluna heath in the investigation area (69 % decrease), compare to elsewhere in Halland, is the establishment and management of a nature reserve..

Structural rationalizations and regionalization of the agricultural sector in Sweden has lead to unevenness in thedistribution of plant nutrients. Nutrients are lost from crop producing farms as harvest products are sold, whilefarms with animal production often have manure in excess of their needs. In addition to this the retention ofwater and nutrients in naturally occurring wetlands has decreased due to a reduction of wetlands in number andsize in the agricultural landscape. This increases nutrient levels in agricultural run-off and causes eutrophicationas well as nutrient losses from arable soils. One potential solution to both problems would be to store nutrientrichsurface water from agricultural areas and use it for irrigation of agricultural crops.

Title: Register now and stay in touch ? a study about the relationship between CRM-system and business performance.Purpose: The purpose with the study is to identify if there is a positive relationship between CRM-system and business performance in Swedish multinational companies in the industrial sector.Audience: This essay is addressed to the Swedish multinational companies in the industrial sector.Methodology/ Approach / Design: We have applied a qualitative method, with a deductive approach. Through an in-depth interview with the case company Benzlers AB, which provided the empirical basis, supplemented with the CSI-values.Conclusion: The study has presented evidence, that there is a positive relationship between CRM-system and business performance which has been confirmed by the positive increase in the CSI-value after the implementation of the CRM-system.Originality/ Value/ Contribution to knowledge The study contributes with its own results that fill in the knowledge gap about the subject in Sweden. The study finds that the CRM-system effectives the interaction with the customer and thereby business performance increase, with the CSI-value as unit. This therefore increases the value and importance of investigation of Swedish multinational companies, whose purpose is to satisfy the customer and at the same time, increase the business performance.Future research: For future research we suggest publishers to base the empirical basis through additional in-depth interviews with added case companies. In order to confirm the relationship between its validity in the industry, and also indentify what happens between inputs and outputs, which leads to increased business performance.Keywords: Customer Relation Management (CRM), CRM-system, customer satisfaction, business performance, Customer-Satisfied-Index.Thesis type: Business economy 61-91, Bachelor essay, Marketing (15 credits), spring 2010th..

There are experiential products that through a digital transformation wholly or partially have taken new place in our everyday lives. Just a few years ago, we had music on CDs, movies on tape and books in bookshelves. In Sweden, we are now facing a transformation when the e-book begins to take place alongside the printed book.This paper focuses on what values play a role in the attitude towards ebooks among a selected group of Swedish book bloggers. A qualitative content analysis was performed on blog posts concerning the ebook from twelve different Swedish book blogs. The posts were then coded into categories and values.

This paper deals with the opportunities for the technique of condensation, for wood fired household heaters, on the Swedish market. In this project the condenser is preceded by a scrubber and both energy exchange and separation of unburnt particles have been studied. The facility studied is connected to a wood stove at 30 kW. The tests would show that the effect from the stove never reached above 16 kW. This might be a result of the low temperature of the water going into the stove, from the condenser. In addition to this the wood was not of highest quality and the stove could have needed some maintenance before the tests.